Pin bending device and insertion machine

Abstract

The present invention discloses a pin bending device and an insertion machine, comprising: a first mounting plate; a centering device, the centering device is arranged on the first mounting plate, the adjusting block can be placed between the first centering die and the second centering die, and respectively abuts against the first centering die and the second centering die, the adjusting block can adjust the distance between the first centering die and the second centering die; a bending device, the bending device is arranged on the first mounting plate, the first bending die is located on the side of the first centering die away from the second centering die, the first bending die can be close to or away from the first centering die, the second bending die is located on the side of the second centering die away from the first centering die, and the second bending die can be close to or away from the second centering die. The present invention can bend electronic components with various pin distances.

Description

Technical Field

[0001] The invention relates to the field of circuit board assembly, and in particular to a pin bending device and an insertion machine. Background Art

[0002] With the rapid development of electronic technology, electronic products are being used more and more widely. Circuit boards are important components of electronic products, and plug-in machines are processing equipment that inserts various electronic components into designated positions on circuit boards. After inserting electronic components into circuit boards, the vibration of the plug-in machine or the circuit board can easily cause the inserted electronic components to jump out of the circuit board. To solve this problem, the pins of the inserted electronic components are generally bent.

[0003] However, for different electronic components, the distance between two adjacent pins is not the same, and the existing bending device can only bend electronic components with narrow pin distances, which can easily cause the pins with small pitches to not be bent properly, and the pins are easy to fall off after bending, or cause the pins with large pitches to be bent excessively, resulting in the pins breaking, and the electronic components cannot be welded normally. The overall adaptability is poor and the competitiveness is not strong, so it needs to be improved. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a pin bending device that can bend electronic components with various pin distances, has good adaptability and strong competitiveness.

[0005] The invention also provides an insertion machine.

[0006] In the first aspect, an embodiment of the present invention provides a pin bending device, comprising: a first mounting plate; a centering device, the centering device is arranged on the first mounting plate, the centering device comprises an adjusting block, a first centering mold and a second centering mold, the adjusting block can be placed between the first centering mold and the second centering mold, and respectively abut against the first centering mold and the second centering mold, the adjusting block can adjust the distance between the first centering mold and the second centering mold; a bending device, the bending device is arranged on the first mounting plate, the bending device comprises a first bending mold and a second bending mold, the first bending mold is located on a side of the first centering mold away from the second centering mold, the first bending mold can be close to or away from the first centering mold, the second bending mold is located on a side of the second centering mold away from the first centering mold, the second bending mold can be close to or away from the second centering mold.

[0007] The pin bending device of the embodiment of the present invention has at least the following beneficial effects: by setting an adjusting block, a first centering mold and a second centering mold, the adjusting block can be placed between the first centering mold and the second centering mold, and respectively abut against the first centering mold and the second centering mold, so that the first centering mold can cooperate with the first bending mold alone to complete the bending of one pin, and the second centering mold can cooperate with the second bending mold alone to complete the bending of another pin. At the same time, the distance between the first centering mold and the second centering mold is adjusted by the adjusting block. Regardless of whether it is an electronic component with a large pin spacing or an electronic component with a small pin spacing, both pins can be bent into place by adjusting the distance between the first centering mold and the second centering mold. There will be no problems of pins with small spacing not being bent into place and pins with large spacing being over-bent. The overall adaptability is good and the competitiveness is strong.

[0008] According to some other embodiments of the stitch bending device of the present invention, a first inclined surface and a second inclined surface are respectively provided on both sides of the adjusting block, the first centering mold can slide along the first inclined surface, and the second centering mold can slide along the second inclined surface.

[0009] According to some other embodiments of the stitch bending device of the present invention, the centering device also includes a first driving device, the adjusting block is fixed on the output end of the first driving device, and under the drive of the first driving device, the adjusting block can approach or move away from the first centering mold, and the stroke of the first driving device is adjustable.

[0010] According to some other embodiments of the pin bending device of the present invention, the centering device also includes an elastic element, the first centering mold and the second centering mold are both slidably connected to the first mounting plate, and the elastic element gives the first centering mold and the second centering mold an elastic force to move them closer to each other.

[0011] According to some other embodiments of the pin bending device of the present invention, a supporting column is provided on the side of the first bending mold facing the first centering mold, and an avoidance hole is provided on the first centering mold, and the supporting column and the avoidance hole are gap-matched.

[0012] According to some other embodiments of the pin bending device of the present invention, a first groove is provided on the side of the supporting column facing the first centering mold.

[0013] According to some other embodiments of the pin bending device of the present invention, a second groove is provided on the side of the first centering mold facing the first bending mold, and the second groove passes through the avoidance hole.

[0014] According to some other embodiments of the present invention, the pin bending device further includes a positioning device, the first mounting plate is fixed on the output end of the positioning device, and the positioning device can drive the first mounting plate to move along the X-axis, along the Y-axis and along the Z-axis respectively.

[0015] According to some other embodiments of the pin bending device of the present invention, the positioning device includes an X-axis driving module, a Y-axis driving module and a Z-axis driving module, the Y-axis driving module is arranged on the output end of the X-axis driving module, the X-axis driving module can drive the Y-axis driving module to move along the X-axis, the Z-axis driving module is arranged on the output end of the Y-axis driving module, the Y-axis driving module can drive the Z-axis driving module to move along the Y-axis direction, and the first mounting plate is fixed on the output end of the Z-axis driving module, and the Z-axis driving module can drive the first mounting plate to move along the Z-axis direction.

[0016] In a second aspect, an embodiment of the present invention provides an insertion machine, comprising the above-mentioned pin bending device.

[0017] The insertion machine of the embodiment of the present invention has at least the following beneficial effects: by using the pin bending device, electronic components with various pin spacings can be properly bent, and the insertion effect of the electronic components is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an oblique view of the pin bending device of the first embodiment;

[0019] Figure 2 yes Figure 1 An oblique view of the middle Z-axis drive module;

[0020] Figure 3 yes Figure 1 An oblique view of the first mounting plate, the bending device and the centering device;

[0021] Figure 4 yes Figure 3 Enlarged schematic diagram of the middle Ⅰ area;

[0022] Figure 5 yes Figure 1 Exploded view of the first mounting plate, centering device and bending device. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments to clearly and completely describe the concept of the present invention and the technical effects produced, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0024] In the description of the embodiments of the present invention, if orientation descriptions are involved, the orientations or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected to the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself, and if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] Reference Figure 1 and Figure 2 , Figure 1 is an oblique view of the pin bending device of the first embodiment, Figure 2 yes Figure 1The oblique view of the Z-axis driving module 230. The pin bending device of this embodiment includes a frame 100, a positioning device 200 and a bending assembly 300. The frame 100 is a rectangular plate. The positioning device 200 is arranged on the frame 100. The positioning device 200 includes an X-axis driving module 210, a Y-axis driving module 220 and a Z-axis driving module 230. The Y-axis driving module 220 is arranged on the output end of the X-axis driving module 210. Under the action of the X-axis driving module 210, the Y-axis driving module 220 can move along the X-axis direction. The Z-axis driving module 230 is arranged on the output end of the Y-axis driving module 220. Under the action of the Y-axis driving module 220, the Z-axis driving module 230 can move along the Y-axis direction. The bending assembly 300 is arranged on the output end of the Z-axis driving module 230. Under the action of the Z-axis driving module 230, the bending assembly 300 can move along the Z-axis direction.

[0027] Thus, under the drive of the positioning device 200, the bending assembly 300 can move to any position on the XY plane (any position within the travel range), so as to cooperate with the plug-in device to bend the pins of the electronic components inserted at any position on the circuit board. In addition, the bending assembly 300 can move along the Z axis, and by making the bending assembly 300 away from the circuit board, the bending assembly 300 will not touch the circuit board when adjusting its position on the XY plane. In addition, by making the bending assembly 300 close to the circuit board, it is convenient to bend the pins.

[0028] In this embodiment, the Y-axis drive module 220 includes a motor 221, a screw-nut assembly 222 and a second mounting plate 223. The screw-nut assembly 222 includes a screw and a nut. The screw is fixed on the rotating shaft of the motor 221. The nut and the screw are threaded together. The second mounting plate 223 is fixed on the nut. When the rotating shaft of the motor 221 rotates, the screw-nut assembly 222 converts the rotational motion of the motor 221 into a linear motion of the second mounting plate 223, thereby causing the second mounting plate 223 to move along the Y-axis. The Z-axis drive module 230 is arranged on the second mounting plate 223, thereby enabling the Z-axis drive module 230 to move along the Y-axis.

[0029] The structures of the X-axis driving module 210 and the Y-axis driving module 220 are the same, and are not described again here.

[0030] The Z-axis drive module 230 includes a baffle 231, a photoelectric proximity switch 232, a fourth cylinder 233, a limit column 234, a connecting rod 235, an optical axis 236, a linear bearing 237 and a third mounting plate 238. The optical axis 236 is arranged along the Z-axis direction, one end of the optical axis 236 is fixed on the second mounting plate 223 (threaded fixing can be selected), the linear bearing 237 is fixed on the third mounting plate 238, the linear bearing 237 is sleeved on the optical axis 236, and slidably cooperates with the optical axis 236, so that the third mounting plate 238 can slide along the Z-axis relative to the second mounting plate 223.

[0031] The cylinder body of the fourth cylinder 233 is fixed on the second mounting plate 223, one end of the connecting rod 235 is rotatably connected to the piston rod of the fourth cylinder 233, and the other end of the connecting rod 235 is rotatably connected to the third mounting plate 238. A waist-shaped hole is provided on the connecting rod 235, and the limiting column 234 is fixed on the second mounting plate 223 after passing through the waist-shaped hole (a raised fixing block is welded and fixed on the surface of the second mounting plate 223, and the limiting column 234 is threadedly matched with the fixing block). Therefore, when the piston rod of the fourth cylinder 233 moves, the third mounting plate 238 can be driven to slide along the Z-axis. By setting the limiting column 234 and the connecting rod 235, the size of the Z-axis drive module 230 in the Z-axis direction can be reduced to save space.

[0032] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 , Figure 3 yes Figure 1 The oblique view of the first mounting plate 310, the bending device 320 and the centering device 330, Figure 4 yes Figure 3 The enlarged schematic diagram of the middle Ⅰ area, Figure 5 yes Figure 1 The first mounting plate 310, the bending device 320 and the centering device 330 are exploded. The bending assembly 300 includes the first mounting plate 310, the bending device 320 and the centering device 330. The first mounting plate 310 is fixed to the third mounting plate 238 by screws. The bending device 320 and the centering device 330 are both arranged on a side of the first mounting plate 310 away from the third mounting plate 238.

[0033] The bending device 320 includes a second cylinder 321, a first bending mold 322, a second bending mold 323 and a third cylinder 324. The cylinder body of the second cylinder 321 is locked and fixed on the first mounting plate 310, and the first bending mold 322 is fixed on the piston rod of the second cylinder 321. Under the action of the second cylinder 321, the first bending mold 322 can move along the Y-axis direction; similarly, the cylinder body of the third cylinder 324 is locked and fixed on the first mounting plate 310, and the second bending mold 323 is fixed on the piston rod of the third cylinder 324. Under the action of the third cylinder 324, the second bending mold 323 can move along the Y-axis direction.

[0034] The centering device 330 includes a first driving device 331, an adjusting block 332, a second centering mold 333, an elastic element 334, a slide rail 336 and a first centering mold 335. The slide rail 336 is locked and fixed on the first mounting plate 310, and the length direction of the slide rail 336 is set along the Y-axis direction. The first centering mold 335 and the second centering mold 333 are both slidably matched with the slide rail 336, so that the first centering mold 335 and the second centering mold 333 can slide along the Y-axis direction.

[0035] The adjusting block 332 is arranged on the output end of the first driving device 331. Under the drive of the first driving device 331, the adjusting block 332 can move along the X-axis direction. The adjusting block 332 is respectively provided with a first inclined surface 345 and a second inclined surface 346 on both sides of one end in the positive direction of the X-axis. When the adjusting block 332 approaches the first centering mold 335, the first centering mold 335 will abut against the first inclined surface 345 and slide along the first inclined surface 345. When the first centering mold 335 slides to a certain position along the Y-axis direction, the adjusting block 332 stops moving, and the position of the first centering mold 335 can be determined. At this time, the first bending mold 322 is moved along the negative direction of the Y-axis and approaches the first centering mold 335. Since the first centering mold 335 abuts against the adjusting block 332, when the first bending mold 322 squeezes the first centering mold 335, the first centering mold 335 will not move along the negative direction of the Y-axis.

[0036] Similarly, when the adjustment block 332 is close to the first centering mold 335 (that is, the adjustment block 332 is close to the second centering mold 333), the second centering mold 333 can slide along the second inclined surface 346, and the second centering mold 333 can stay at the required position, thereby cooperating with the second bending mold 323.

[0037] In order to bend the pin, a supporting column 341 is provided on the side of the first bending mold 322 facing the first centering mold 335. Correspondingly, an avoidance hole 344 is provided on the first centering mold 335. The supporting column 341 and the avoidance hole 344 are clearance-matched. When the supporting column 341 is inserted into the avoidance hole 344, the pin can be bent.

[0038] To facilitate the positioning of the pin, a first groove 342 is provided on the side of the supporting column 341 facing the first centering mold 335, and a second groove 343 is provided on the side of the first centering mold 335 facing the first bending mold 322. The second groove 343 passes through the avoidance hole 344. Therefore, when the pin is located between the first bending mold 322 and the first centering mold 335, both the first groove 342 and the second groove 343 can position the pin.

[0039] In this embodiment, in order to make the adjustment block 332 move away from the first centering mold 335 so that the first centering mold 335 and the second centering mold 333 can automatically approach each other and return to their original positions, an elastic element 334 is provided. The elastic element 334 gives an elastic force to the first centering mold 335 and the second centering mold 333 to approach each other. Under the action of the elastic force, the first centering mold 335 and the second centering mold 333 can approach each other.

[0040] In this embodiment, the elastic element 334 is a tension spring, and the two ends of the tension spring are respectively buckled on the first centering mold 335 and the second centering mold 333. When the first centering mold 335 and the second centering mold 333 are against each other, the tension spring is in a stretched state, giving the first centering mold 335 and the second centering mold 333 a pre-tightening force.

[0041] In another embodiment, the elastic element 334 may also be a compression spring, and at least two compression springs are provided, wherein one end of one compression spring abuts against the first mounting plate 310, and the other end abuts against the first centering mold 335, thereby also providing the first centering mold 335 with an elastic force close to the second centering mold 333, and the setting of the other compression spring is similar.

[0042] By setting the adjustment block 332, the first centering mold 335 and the second centering mold 333, the distance between the first centering mold 335 and the second centering mold 333 is adjustable, and the distance between the first centering mold 335 and the second centering mold 333 matches the distance between two pins of the electronic component. The first centering mold 335 can be independently matched with the first bending mold 322 to complete the bending of one pin, and the second centering mold 333 can be independently matched with the second bending mold 323 to complete the bending of another pin. The bending degree of the pin is moderate, and the pin will not be bent inadequately or excessively, and the bending effect is good.

[0043] In this embodiment, the first driving device 331 is a first cylinder, and the adjusting block 332 is fixed on the piston rod of the first cylinder. In order to adjust the stroke of the first cylinder so that the adjusting block 332 can stay in a suitable position, thereby determining the positions of the first centering mold 335 and the second centering mold 333, a permanent magnet can be fixed on the piston rod of the first cylinder, and a Hall switch can be used to sense the position of the piston rod, and the relay can be controlled by the contacts of the Hall switch to adjust the stroke of the first cylinder.

[0044] In another embodiment, the first driving device 331 may also be a linear motor.

[0045] In this embodiment, the first inclined surface 345 and the second inclined surface 346 are symmetrically arranged, so that the adjustment block 332 can be moved to the midpoint of the two pins of the electronic component, the first centering mold 335 and the second centering mold 333 are opened at the same distance, and the bending degree of the two pins of the electronic component is the same.

[0046] In this embodiment, a third inclined surface is provided at one end of the first centering mold 335 facing the adjusting block 332, and a fourth inclined surface is provided at one end of the second centering mold 333 facing the adjusting block 332. When the first centering mold 335 and the second centering mold 333 are in contact, the third inclined surface and the fourth inclined surface are in a "V" shape, which facilitates aligning the adjusting block 332 with the gap between the first centering mold 335 and the second centering mold 333, and separating the first centering mold 335 and the second centering mold 333.

[0047] The present invention also relates to an insertion machine. The insertion machine in this embodiment includes the above-mentioned pin bending device.

[0048] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A pin bending device, characterized in that: include: a first mounting plate; A centering device, the centering device is arranged on the first mounting plate, the centering device comprises an adjusting block, a first centering mold and a second centering mold, the two sides of the adjusting block are respectively provided with a first inclined surface and a second inclined surface, the first centering mold can slide along the first inclined surface, the second centering mold can slide along the second inclined surface, the adjusting block can be placed between the first centering mold and the second centering mold, and respectively abut against the first centering mold and the second centering mold, and the adjusting block can adjust the distance between the first centering mold and the second centering mold; The centering device further comprises an elastic element, the first centering mold and the second centering mold are both slidably connected to the first mounting plate, and the elastic element applies an elastic force to the first centering mold and the second centering mold to move closer to each other; A bending device, wherein the bending device is arranged on the first mounting plate, and the bending device includes a first bending mold and a second bending mold, the first bending mold is located on a side of the first centering mold away from the second centering mold, a supporting column is provided on the side of the first bending mold facing the first centering mold, an avoidance hole is provided on the first centering mold, the avoidance hole is extended along the Y-axis, the supporting column is gap-matched with the avoidance hole, a first groove is provided on the side of the supporting column facing the first centering mold, a second groove is provided on the side of the first centering mold facing the first bending mold, the second groove passes through the avoidance hole along the Z-axis, the Y-axis is perpendicular to the Z-axis, the first bending mold can approach or move away from the first centering mold, the second bending mold is located on the side of the second centering mold away from the first centering mold, and the second bending mold can approach or move away from the second centering mold.

2. The stitch bending device according to claim 1, characterized in that: The centering device also includes a first driving device, the adjustment block is fixed on the output end of the first driving device, and under the drive of the first driving device, the adjustment block can approach or move away from the first centering mold, and the stroke of the first driving device is adjustable.

3. The stitch bending device according to claim 1, characterized in that: It also includes a positioning device, the first mounting plate is fixed on the output end of the positioning device, and the positioning device can drive the first mounting plate to move along the X axis, the Y axis and the Z axis respectively.

4. The stitch bending device according to claim 3, characterized in that: The positioning device includes an X-axis driving module, a Y-axis driving module and a Z-axis driving module. The Y-axis driving module is arranged on the output end of the X-axis driving module, and the X-axis driving module can drive the Y-axis driving module to move along the X-axis. The Z-axis driving module is arranged on the output end of the Y-axis driving module, and the Y-axis driving module can drive the Z-axis driving module to move along the Y-axis direction. The first mounting plate is fixed on the output end of the Z-axis driving module, and the Z-axis driving module can drive the first mounting plate to move along the Z-axis direction.

5. An insertion machine, characterized in that: It comprises a stitch bending device as described in any one of claims 1 to 4.

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