Terminal bending and cutting device

Abstract

The invention relates to a terminal bending and cutting device which comprises a conveying track, the pair of bending mechanisms comprises a bending driving part, a bending transmission part connected with the bending driving part and a bending piece fixed on the bending transmission part, a pressing sheet is arranged at the tail end of the bending piece, and the pressing sheets arranged on the pair of bending mechanisms move relatively or oppositely; the pair of bending positioning assemblies is arranged between the pair of bending mechanisms, each bending positioning assembly comprises a positioning block and a bending positioning driving part for driving the positioning block, the upper surface of each positioning block forms an inclined surface, the inclined surfaces of the pair of bending positioning assemblies respectively form included angles with the outer surfaces of the pair of pressing sheets, and the included angles are larger than the bending angle of the terminal; a cutting mechanism; the terminal is bent in different directions and at different angles through relative movement or opposite movement of the pressing pieces arranged on the pair of bending mechanisms, meanwhile, included angles are formed between the inclined faces arranged on the bending positioning assembly and the outer surfaces of the pair of pressing pieces, and the terminal can be accurately bent conveniently.

Description

Technical Field

[0001] It relates to the technical field of terminal forming, and particularly to a terminal bending and cutting device. Background Art

[0002] In the field of electronic component manufacturing, terminals, as key components of connectors, their processing accuracy directly affects the electrical performance and mechanical reliability of products. Traditional terminal processing mainly uses manual operation or single-function equipment for bending and cutting, which has problems such as low efficiency and poor consistency. With the development of electronic products towards miniaturization and high density, higher requirements are put forward for the processing accuracy of terminals, and the traditional process has been difficult to meet the needs of modern production. Although existing automated equipment has improved production efficiency, there are still deficiencies in the control of bending angles, especially the problem of dimensional deviation caused by material springback has not been effectively solved.

[0003] According to Chinese Patent CN114632888A, a general-purpose power terminal bending device is disclosed. The device includes a bottom plate, a feeding mechanism, a terminal bending mechanism, and a terminal cutting mechanism arranged on the floor. The terminal bending mechanism is arranged between the feeding mechanism and the terminal cutting mechanism. The terminal bending mechanism includes a cooperating terminal bending assembly and a terminal pressing assembly, and the pressing and bending of the terminal are realized through the terminal bending assembly and the terminal pressing assembly. However, in the actual work of bending the terminal, the terminal itself has stress. During the bending process of this device, it is difficult to accurately grasp the bending angle, and problems such as unqualified bending or excessive bending are likely to occur. Secondly, when some terminals are formed with plastic parts, the distance between terminals is small, and it is difficult for this device to bend these terminals in different directions and angles respectively.

[0004] In view of these problems, it is urgent to develop a terminal bending and cutting device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a terminal bending and cutting device with precise bending.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A terminal bending and cutting device, comprising: A conveying track for conveying terminals; A pair of bending mechanisms, including a bending driving part, a bending transmission part connected to the bending driving part, and a bending piece fixed on the bending transmission part. The bending piece extends towards the conveying track direction and a pressing piece is provided at the end. The pressing pieces provided by this pair of bending mechanisms move relatively or in opposite directions; A pair of bending positioning components are arranged between the pair of bending mechanisms. The bending positioning components include positioning blocks and bending positioning driving members for driving the positioning blocks. The upper surface of the positioning block forms an inclined surface. The pressing piece is placed on one side of the terminal, and the inclined surface is located on the other side of the terminal. The inclined surfaces provided by the pair of bending positioning components respectively form an angle with the outer surfaces of the pair of pressing pieces, and the angle of this angle is greater than the bending angle of the terminal; A cutting mechanism for cutting the bent terminal.

[0007] Furthermore, the bending transmission part includes a transmission bearing. Connecting protrusions are provided on one side of the opposite sides of the transmission bearing. The pair of connecting protrusions are arranged staggeredly. The pair of connecting protrusions have opposite sides, and the bending piece and the pressing piece are respectively fixed on the opposite sides of the pair of connecting protrusions. Furthermore, the bending driving part includes a bending driving cylinder and a bending driving rack pushed by the bending driving cylinder, and the bending driving cylinder pushes the bending driving rack to move.

[0008] Furthermore, a transmission gear is fixedly connected to the end face of the transmission bearing, located above the bending driving rack and meshing with the bending driving rack.

[0009] Furthermore, the angle formed by the inclined surface and the pressing piece is an obtuse angle.

[0010] Furthermore, it includes an upper cutting component and a lower cutting component. The upper cutting component and the lower cutting component move relatively or in opposite directions to cut the terminal.

[0011] Furthermore, the upper cutting component includes an upper cutter body and a pressing block movably connected to the upper cutter body. The upper cutter body has a receiving hole penetrating its upper and lower surfaces. The pressing block is movably arranged in and always stays in the receiving hole, and the end of the pressing block can be exposed from the lower surface of the upper cutter body.

[0012] Furthermore, the lower cutting component includes a support member. The support member has a first through groove formed by inward depression from the top end face and a second through groove formed by inward depression from the bottom side face. The first through groove and the second through groove are connected. A linkage block is arranged in the first through groove. A pair of lower cutting tools are fixedly connected to the top of the linkage block. A pushing block is arranged in the second through groove, and the pushing block pushes the linkage block and its implemented lower cutting tools to move vertically.

[0013] Furthermore, the bending positioning component further includes a reverse folding part. The reverse folding part includes a reverse folding driving part and a transmission rod connecting the reverse folding driving part. The other end of the transmission rod is connected to the positioning block. The reverse folding driving part pushes the positioning block to move through the transmission rod, changing the angle formed between the upper surface of the positioning block and the pressing piece.

[0014] Furthermore, a distance sensor is mounted on the surface of the positioning block for judging the distance between the surface of the terminal and the inclined surface.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is a terminal bending and cutting device, which has the characteristic of precise bending. By the relative movement or opposite movement of the pressing pieces provided by a pair of bending mechanisms, the terminals are bent in different directions and angles respectively. At the same time, the inclined surfaces provided by the bending positioning components respectively form an included angle with the outer surfaces of the pair of pressing pieces, which is convenient for precisely bending the terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a terminal bending and cutting device of the present invention; Figure 2 It is Figure 1 a three-dimensional structural schematic diagram of the conveying track of the shown terminal bending and cutting device; Figure 3 It is Figure 2 a partial structural schematic diagram of the conveying track of the shown terminal bending and cutting device; Figure 4 It is Figure 1 a partial structural schematic diagram of the bending mechanism of the shown terminal bending and cutting device; Figure 5 It is Figure 4 a partial structural schematic diagram of the bending mechanism of the shown terminal bending and cutting device from another angle; Figure 6 It is Figure 1 a partial three-dimensional structural schematic diagram of the bending mechanism of the shown terminal bending and cutting device; Figure 7 It is Figure 6 a front view of the bending mechanism of the shown terminal bending and cutting device; Figure 8 It is Figure 1 a structural schematic diagram of the cutting mechanism of the shown terminal bending and cutting device; Figure 9 It is Figure 8 a partial structural schematic diagram of the cutting mechanism of the shown terminal bending and cutting device; Figure 10Schematic diagram of the reverse folding part structure of another embodiment of a terminal bending and cutting device according to the present invention. Detailed implementation manners

[0018] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, describe in detail the specific implementation manners, structures, features, and effects of the terminal bending and cutting device proposed according to the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs.

[0020] The following will specifically describe the specific solution of the terminal bending and cutting device provided by the present invention with reference to the accompanying drawings.

[0021] Please refer to Figures 1 to 9 , the present invention provides a terminal bending and cutting device, which includes a platform 1, a bracket 2 installed on the platform 1, a conveying track 3 provided on and passing through the bracket 2, a bending mechanism 4 surrounding the conveying track 3, and a cutting mechanism 5 located on one side of the bending mechanism 4.

[0022] Please refer to Figure 1 , the platform 1 is in a horizontal state and is used to support the bracket 2, the conveying track 3, the bending mechanism 4, and the cutting mechanism 5.

[0023] Please refer to Figure 1 , the bracket 2 includes a first bracket 21 and a second bracket 22 which are relatively parallelly arranged. The bottoms of both the first bracket 21 and the second bracket 22 are fixedly connected to the upper surface of the bracket 2, and their tops extend vertically upward. Both the first bracket 21 and the second bracket 22 have mounting holes 23 passing through their two side surfaces. The diameter of the mounting holes 23 can be changed according to requirements, and the mounting holes 23 of the first bracket 21 and the mounting holes 23 of the second bracket 22 are arranged oppositely.

[0024] Please refer to Figures 2 to 3, the conveying track 3 includes a support base 31, a track body 32 fixedly connected to the support base 31, and a track groove 33 formed by inward depression from the surface of the track body 32. The number of support bases 31 is a pair, located on the outer sides of the first bracket 21 and the second bracket 22 respectively. Its bottom is fixedly connected to the upper surface of the bracket 2, and its top extends vertically upward and is fixedly connected to the track body 32. The track body 32 penetrates through the mounting hole 23, and its two ends are connected to the support base 31. The track groove 33 is formed by inward depression from the upper surface of the track body 32. Specifically, the track groove 33 includes an upper groove 331 and a lower groove 332. The upper groove 331 is formed by inward depression from the upper surface of the track body 32, and the lower groove 332 is formed by inward depression from the bottom surface of the upper groove 331. The spacing of the lower groove 332 is smaller than that of the upper groove 331.

[0025] Furthermore, the track body 32 has a clearance groove 333 formed by inward depression from the upper surface. The clearance groove 333 is perpendicular to the track groove 33. Both ends of the clearance groove 333 penetrate through the two side surfaces of the track body 32, facilitating the bending mechanism 4 to extend in.

[0026] Please refer to Figures 4 to 7 , there are a pair of bending mechanisms 4, which are respectively installed on the first bracket 21 and the second bracket 22. It includes a bending driving part 41, a bending transmission part 42 connected to the bending driving part 41, and a bending part 43 fixedly connected to the bending transmission part 42. The bending driving part 41 includes a bending driving cylinder 411 and a bending driving rack 412 pushed by the bending driving cylinder 411. A rack track 413 is laid below the bending driving rack 412. The bottom of the rack track 413 is installed on the platform 1. The bending driving cylinder 411 pushes the bending driving rack 412 to move along the rack track 413, and the meshing direction of the bending driving rack 412 is arranged upward.

[0027] The bending transmission part 42 includes a transmission bearing 421 and a transmission gear 422. The transmission bearing 421 is arranged in the mounting hole 23 and has a groove 423 formed by inward depression from the outer surface. The groove 423 surrounds the transmission bearing 421, and ball bearings 424 are accommodated inside it. The ball bearings 424 are in contact with and roll on the inner wall of the transmission bearing 421 and the mounting hole 23 respectively. The transmission gear 422 is fixed to the outer end face of the transmission bearing 421, located above the bending driving rack 412, and meshes with the bending driving rack 412. A connecting protrusion 425 is provided on the inner end face of the transmission bearing 421. One end of the connecting protrusion 425 is fixedly connected to the transmission bearing 421, and the other end extends axially.

[0028] Both the transmission bearing 421 and the transmission gear 422 have clearance holes 426, and the centers of the clearance holes 426 are on the same axis as the center of the mounting hole 23.

[0029] The bent part 43 is fixed to the connecting protrusion 425. The other end extends radially and a pressing piece 44 is provided at the end. The diameter of the end of the bent part 43 connected to the connecting protrusion 425 is larger than that of the radially extending end, that is, the diameter of the bent part 43 gradually decreases as it extends radially. One end of the pressing piece 44 is connected to the end of the bent part 43, and the other end extends vertically towards the track groove 33.

[0030] Specifically, the bent parts 43 of a pair of bending mechanisms 4 are arranged oppositely. The connecting protrusion 425 axially extends from the opposite side of the transmission bearing 421. The pair of connecting protrusions 425 are arranged staggeredly. The pair of connecting protrusions 425 have an opposite side. The bent part 43 and its pressing piece 44 are fixed to the opposite side of the pair of connecting protrusions 425. The bent parts 43 and their pressing pieces 44 of a pair of bending mechanisms 4 have an opposite side. The bent parts 43 and their pressing pieces 44 of a pair of bending mechanisms 4 are mutually attached and abutted, so that the end of the pressing piece 44 is aligned with the track groove 33.

[0031] Please refer to Figure 5 , the bending mechanism 4 further includes a bending positioning assembly 45. The number of the bending positioning assemblies 45 is a pair, which are respectively installed on both sides of the conveying track 3. The pair of bending positioning assemblies 45 are arranged oppositely.

[0032] The bending positioning assembly 45 includes a positioning block 451, a connecting block 452 connecting the positioning block 451, and a bending positioning driving part 453 driving the positioning block 451 and the connecting block 452. The positioning block 451 is located outside the pressing piece 44. The end surface thereof close to the conveying track 3 is recessed inward to form a plurality of steps 4511. The steps 4511 are used to prevent the positioning block 451 from interfering with the conveying track 3. The upper surface of the positioning block 451 forms an inclined surface 4512. The inclined surface 4512 and the pressing piece 44 form an angle, and this angle is an obtuse angle. In this embodiment, the top of the connecting block 452 is connected to the positioning block 451, and the bottom extends vertically downward. A bending positioning track 554 is laid on the upper surface of the platform 1. The bottom of the connecting block 452 is movably connected to the bending positioning track 554. The bending positioning driving part 453 pushes the connecting block 452 and the positioning block 451 to move along the bending positioning track 554, so that the positioning block 451 enters or exits the track groove 33.

[0033] Please refer to Figures 8 to 9 , the cutting mechanism 5 includes an upper cutting assembly 51 and a lower cutting assembly 52.

[0034] The upper cutting component 51 includes an upper cutting driving member 511 and an upper cutting tool 512 driven by the upper cutting driving member 511. A support plate 513 is installed on the tops of the first support 21 and the second support 22. One end of the support plate 513 extends above the conveying track 3. The upper cutting driving member 511 is fixed to the support plate 513. The upper cutting tool 512 is located below the support plate 513. The upper cutting driving member 511 drives the upper cutting tool 512 to move vertically, approaching or departing from the conveying track 3. Specifically, the upper cutting tool 512 includes an upper cutting tool body 5121 and a pressing block 5122 movably connected to the upper cutting tool body 5121. The upper cutting tool body 5121 has a receiving hole 5123 penetrating through its upper and lower surfaces. The pressing block 5122 is movably arranged in and always stays in the receiving hole 5123, and the end of the pressing block 5122 can expose the lower surface of the upper cutting tool body 5121.

[0035] The lower cutting component 52 includes a lower cutting driving member 521 and a lower cutting tool 522 driven by the lower cutting driving member 521. A support member 523 is installed on the upper surface of the platform 1. The bottom of the support member 523 is fixedly connected to the platform 1, and the top extends vertically upward. The support member 523 has a first through groove 524 formed by inward depression from the top end surface and a second through groove 525 formed by inward depression from the bottom side surface. The first through groove 524 and the second through groove 525 are communicated with each other. A linkage block 526 is arranged in the first through groove 524. A pair of lower cutting tools 522 are fixedly connected to the top of the linkage block 526, and a connecting rod 527 is provided at its bottom. A pushing block 528 is arranged in the second through groove 525. A connecting hole 529 is provided at the end of the pushing block 528. The connecting hole 529 is an elongated hole, with one end at a higher position and the other end at a lower position. The connecting rod 527 extends into the connecting hole 529. The lower cutting driving member 521 drives the pushing block 528 to move along the second through groove 525, causing the connecting rod 527 to move obliquely in the connecting hole 529, driving the linkage block 526 and its lower cutting tools 522 to move vertically.

[0036] Collection baskets 53 are arranged on both sides of the lower cutting component 52, and the collection baskets 53 are used to collect the waste materials after cutting.

[0037] Please refer to Figure 10 , in another embodiment, the bending and positioning component 45 further includes a reverse folding portion 454. The reverse folding portion 454 includes a reverse folding driving portion 4541 and a transmission rod 4542 connecting the reverse folding driving portion 4541. The reverse folding driving portion 4541 is fixedly connected to the connecting block 452. One end of the transmission rod 4542 is connected to the reverse folding driving portion 4541, and the other end is connected to the positioning block 451. The reverse folding driving portion 4541 pushes the positioning block 451 to move through the transmission rod 4542, changing the included angle formed between the upper surface of the positioning block 451 and the pressing piece 44. Preferably, a distance sensor 455 is installed on the surface of the positioning block 451 for judging the distance between the terminal surface and the distance sensor 455 (the inclined surface 4512).

[0038] When the terminal bending and cutting device of the present invention is in use, the terminal and its plastic part are conveyed into the conveying track 3 through a cylinder or a vibrating disk, so that the plastic part is placed in the track groove 33, and a pair of terminals are in a vertical state, and continuously move along the track groove 33 in the direction of the bending mechanism 4 and the cutting mechanism 5.

[0039] When the terminal and its plastic part move to the position where the bending mechanism 4 is located, a pair of pressing plates 44 are between the pair of terminals. The bending positioning driving part 453 pushes the connecting block 452 and the positioning block 451 to move along the bending positioning track 554, so that the positioning block 451 enters the track groove 33, clamps the plastic part, and at the same time the end face of the positioning block 451 contacts the outer surface of the terminal. The bending driving part 41 drives the pressing plate 44 through the transmission bearing 421 and the transmission gear 422, so that the pressing plate 44 rotates and moves in the direction of the inclined surface 4512 of the positioning block 451, extrudes the terminal, and causes the terminal to deform. Limited by the stress of the terminal itself, the moving angle of the pressing plate 44 is greater than 90 degrees. After the terminal is bent, the pressing plate 44 and the positioning block 451 return along the original path, and the terminal and its plastic part continue to move in the direction of the cutting mechanism 5.

[0040] When the terminal and its plastic part move to the position where the cutting mechanism 5 is located, the upper cutting driving part 511 drives the upper cutting tool 512 to move, and the pressing block 5122 first presses the plastic part. The lower cutting driving part 521 drives the lower cutting tool 522 to move closer to the upper cutting tool 512. The upper cutting tool 512 and the lower cutting tool 522 move relatively to cut the bent terminal. Then the upper cutting tool 512 and the lower cutting tool 522 return along the original path, and the cut waste falls into the collection basket 53, and the cut product continues to move to the next process.

[0041] In another embodiment, after the terminal is bent, the distance sensor 455 judges whether the distance between the terminal surface and the distance sensor 455 (the inclined surface 4512) meets the standard. If the bending angle of the terminal is too large, the reverse folding driving part 4541 pushes the positioning block 451 to move through the transmission rod 4542 to fold the terminal in the reverse direction.

[0042] The present invention is a terminal bending and cutting device, which has the characteristic of precise bending. By the relative movement or reverse movement of the pressing plates provided by a pair of bending mechanisms, the terminals are bent in different directions and angles respectively. At the same time, the inclined surfaces provided by the bending positioning components form an angle with the outer surfaces of a pair of pressing plates respectively, which is convenient for precisely bending the terminals.

[0043] The above are only the preferred embodiments of the present invention, and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A terminal bending and cutting device, characterized in that, Comprising: A conveying track (3) for conveying terminals; A pair of bending mechanisms (4), including a bending driving part (41), a bending transmission part (42) connecting the bending driving part (41), and a bending part (43) fixed on the bending transmission part (42). The bending part (43) extends towards the conveying track (3) and has a pressing piece (44) at its end. The pressing pieces (44) provided on this pair of bending mechanisms (4) move relatively or in opposite directions; A pair of bending positioning components (45) are arranged between this pair of bending mechanisms (4). The bending positioning components (45) include a positioning block (451) and a bending positioning driving part (453) for driving the positioning block (451). An inclined surface (4512) is formed on the upper surface of the positioning block (451). The pressing piece (44) is placed on one side of the terminal, and the inclined surface (4512) is located on the other side of the terminal. The inclined surfaces (4512) provided on this pair of bending positioning components (45) respectively form an angle with the outer surfaces of a pair of pressing pieces (44); A cutting mechanism (5) for cutting the bent terminals.

2. The terminal bending and cutting device according to claim 1, wherein: The bending transmission part (42) includes a transmission bearing (421). Connecting protrusions (425) are provided on one side of the opposite sides of the transmission bearing (421). This pair of connecting protrusions (425) are arranged staggeredly. One side of this pair of connecting protrusions (425) has an opposite side. The bending part (43) and the pressing piece (44) are respectively fixed on the opposite sides of this pair of connecting protrusions (425); 3. The terminal bending and cutting device according to claim 2, wherein: The bending driving part (41) includes a bending driving cylinder (411) and a bending driving rack (412) pushed by the bending driving cylinder (411). The bending driving cylinder (411) pushes the bending driving rack (412) to move.

4. The terminal bending and cutting device according to claim 3, wherein: A transmission gear (422) is fixedly connected to the end face of the transmission bearing (421), located above the bending driving rack (412) and meshing with the bending driving rack (412).

5. The terminal bending and cutting device according to claim 1, wherein: The angle formed by the inclined surface (4512) and the pressing piece (44) is an obtuse angle.

6. The terminal bending and cutting device according to claim 1, characterized in that: The cutting mechanism (5) includes an upper cutting component (51) and a lower cutting component (52). The upper cutting component (51) and the lower cutting component (52) move relatively or in opposite directions to cut the terminals.

7. The terminal bending and cutting device according to claim 6, wherein: The upper cutting component (51) includes an upper cutter body (5121) and a pressing block (5122) movably connected to the upper cutter body (5121). The upper cutter body (5121) has a receiving hole (5123) penetrating its upper and lower surfaces. The pressing block (5122) is movably arranged and always stays in the receiving hole (5123). The end of the pressing block (5122) can be exposed from the lower surface of the upper cutter body (5121).

8. The terminal bending and cutting device according to claim 6, characterized in that: The lower cutting component (52) includes a support member (523), the support member (523) has a first through groove (524) formed by inward depression from the top end face and a second through groove (525) formed by inward depression from the bottom side face, the first through groove (524) and the second through groove (525) are communicated with each other, a linkage block (526) is arranged in the first through groove (524), a pair of lower cutting tools (522) are fixedly connected to the top of the linkage block (526), a pushing block (528) is arranged in the second through groove (525), and the pushing block (528) pushes the linkage block (526) and the lower cutting tools (522) to move vertically.

9. The terminal bending and cutting device according to claim 1, wherein: The bending and positioning component (45) further includes a folding-back portion (454), the folding-back portion (454) includes a folding-back driving portion (4541) and a transmission rod (4542) connecting the folding-back driving portion (4541), the other end of the transmission rod (4542) is connected to the positioning block (451), and the folding-back driving portion (4541) pushes the positioning block (451) to move through the transmission rod (4542) so as to change the included angle formed between the upper surface of the positioning block (451) and the pressing piece (44).

10. The terminal bending and cutting device according to claim 9, characterized in that: A distance sensor (455) is installed on the surface of the positioning block (451) for judging the distance between the terminal surface and the inclined surface (4512).

Images