Bidirectional bending mechanism

Abstract

The invention relates to the technical field of electronic component processing equipment, in particular to a two-way bending mechanism which is characterized in that through precise matching of an inclined guide sliding groove and bending execution pieces, when a driving module drives a movable base plate to move, the two bending execution pieces are guided by the guide sliding groove to accurately and synchronously move towards each other or away from each other; not only are the synchronism and the stability of bidirectional bending actions ensured, but also deviation or deformation of the pins in the bending process can be effectively avoided; due to the arrangement of the elastic element, the bending execution piece has an automatic reset function, and the continuous operation efficiency is improved; due to the combined design of the limiting plates and the supporting ribs, the bending stroke is accurately controlled, and stable bearing is provided; according to the pin bending machine, through cooperation with the product conveying assembly, the height-adjustable jacking module and the downward-pressing fixing module, full-process automatic operation from automatic product conveying to precise positioning and stable bending is achieved, the machining precision and production efficiency of pin bending are greatly improved, and the pin bending machine is particularly suitable for pin machining of high-density and large-batch electronic components.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic component processing equipment, and in particular to a bidirectional bending mechanism. Background Art

[0002] In modern electronics manufacturing, pin bending is a key process in component processing, widely used in the production of connectors, integrated circuits, relays, and other electronic components. Traditionally, pin bending is performed using equipment such as stamping presses, bending dies, or robotic arms, which form the pins through unidirectional force or step-by-step bending. However, as electronic components move toward miniaturization and higher density, the pin spacing continues to shrink, placing increasing demands on bending precision and efficiency.

[0003] Currently, common pin bending mechanisms mostly use unidirectional drive or step-by-step bending, making it difficult to achieve bidirectional synchronous bending. This unidirectional or asynchronous bending method can easily lead to uneven force on the pins, causing deformation deviations or stress concentration, which affects product yield. Furthermore, step-by-step bending requires multiple positioning and processing steps, which is inefficient and difficult to ensure bilateral bending symmetry. Furthermore, for high-density pins, existing mechanisms often require complex multi-station coordination or frequent mold changes, further increasing equipment costs and operational difficulty. Summary of the Invention

[0004] Based on this, an object of the present invention is to provide a bidirectional bending mechanism.

[0005] The present invention adopts the following technical solutions:

[0006] A bidirectional bending mechanism, comprising:

[0007] A connecting frame, the connecting frame including a connecting base plate, a supporting column and a connecting bottom plate fixed from top to bottom, wherein a plurality of movable grooves are formed through the connecting base plate;

[0008] A drive assembly, comprising a drive module fixed to the connecting base plate and a movable base plate movably connected to the bottom of the connecting base plate; the movable base plate is connected to the output end of the drive module; the movable base plate is provided with a plurality of evenly distributed bending stations corresponding to the movable grooves, and the bending stations are provided with two symmetrically inclined guide slots;

[0009] A bending actuator, the bending actuator is correspondingly arranged in the guide slot, the bending actuator includes a guide portion, a sliding portion and a bending portion arranged in sequence from bottom to top, the guide portion is slidably connected to the guide slot, the sliding portion is slidably connected to the movable slot, and the bending portion passes through the connecting substrate;

[0010] When the driving module drives the movable base plate to move, the slider slides along the guide groove, so that the two bending actuators in the same bending station move toward or away from each other synchronously along the movable groove to achieve bidirectional bending.

[0011] Preferably, the guide part includes a guide wheel and a connecting column arranged on the top of the guide wheel, and the connecting column is inserted into the sliding part; the sliding part is arranged in a rectangular structure; the bending part is integrally formed at the top of the sliding part, and a guide groove is provided on one side of the bending part.

[0012] Preferably, the bending actuator also includes an elastic element connected to one side of the sliding part, and a connecting hole is provided on one side of the sliding part. One end of the elastic element is inserted into the connecting hole, and the other end of the elastic element is connected to the end wall of the movable groove. The elastic element is used to drive the bending actuator to reset.

[0013] Preferably, the driving module includes a drivingly connected pushing cylinder and a pushing plate, the pushing cylinder is fixed on the connecting base plate, the pushing plate is connected to the driving end of the pushing cylinder, and the pushing plate is fixedly connected to the bottom of the movable base plate.

[0014] Preferably, a limit plate is provided on the top of the connecting substrate, and a plurality of limit holes are provided on the limit plate corresponding to the movable groove. The length of the limit hole is smaller than the length of the movable groove, and the limit hole is used to limit the sliding stroke of the bending actuator; the limit plate is provided with staggered support ribs, and the support ribs are used to support the product.

[0015] Preferably, it further comprises a product conveying assembly, wherein the product conveying assembly comprises a first conveying module and a second conveying module which are provided on both sides of the connecting frame and have the same structure;

[0016] The first conveying module includes a first support frame, a first transmission wheel group rotatably connected to one side of the first support frame, a first conveying belt sleeved on the outside of the first transmission wheel group, and a first driving motor installed on the other side of the first support frame and drivingly connected to the first transmission wheel group;

[0017] The second conveying module includes a second support frame, a second transmission wheel group rotatably connected to one side of the second support frame, a second conveying belt sleeved on the outside of the second transmission wheel group, and a second driving motor installed on the other side of the second support frame and drivingly connected to the second transmission wheel group.

[0018] Preferably, a pressing module is fixed on the first conveying module and the second conveying module, and the pressing module is arranged above the connecting frame; a lifting module is fixed on the bottom of the connecting frame; the lifting module drives the connecting frame to move upward so that the bending actuator reaches a preset working height; the pressing module is used to press down and fix the product.

[0019] Preferably, the jacking module includes a jacking plate and a jacking cylinder that are driven and connected, and the jacking plate is fixed to the bottom of the connecting base plate; the jacking cylinder drives the jacking plate to rise and fall vertically, thereby driving the entire connecting frame to rise and fall vertically.

[0020] Preferably, the pressing module includes a pressing plate arranged above the connecting frame, and two pressing cylinders respectively arranged on the outside of the first conveying module and the second conveying module; the pressing cylinders drive the pressing plate to move downward to press the product.

[0021] Preferably, the first conveying module and the second conveying module include a feed end, a working end and a discharge end sequentially arranged along the conveying direction, and the feed end, the working end and the discharge end are all provided with position detection sensors.

[0022] The beneficial effects of the present invention are:

[0023] The bidirectional bending mechanism involved in the present invention, through the precise cooperation between the inclined guide slide and the bending actuator, when the driving module drives the movable base plate to move, the two bending actuators realize precise synchronous movement toward or away from each other under the guidance of the guide slide, which not only ensures the synchronization and stability of the bidirectional bending action, but also effectively avoids the offset or deformation during the pin bending process; the setting of the elastic element enables the bending actuator to have an automatic reset function, thereby improving the continuous operation efficiency; the combined design of the limit plate and the support ribs can accurately control the bending stroke and provide stable support; in conjunction with the product conveying component, the height-adjustable lifting module and the downward fixing module, the full process automation operation from automatic product conveying to precise positioning and stable bending is realized, which greatly improves the processing accuracy and production efficiency of pin bending, and is particularly suitable for pin processing of high-density, large-volume electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the bidirectional bending mechanism of the present invention;

[0025] Figure 2 A top view of the bidirectional bending mechanism of the present invention;

[0026] Figure 3 It is a schematic exploded view of the structure of the bidirectional bending mechanism of the present invention;

[0027] Figure 4This is a schematic structural diagram of the bidirectional bending mechanism of the present invention with some components hidden;

[0028] Figure 5 for Figure 4 Schematic diagram of the structural explosion;

[0029] Figure 6 for Figure 5 Schematic diagram of the structure of the bending actuator;

[0030] Figure 7 for Figure 3 Schematic diagram of the structure of the conveying component.

[0031] Numbers in the figure:

[0032] 10-connecting frame; 11-connecting base plate; 111-movable slot; 12-support column; 13-connecting bottom plate; 14-limiting plate; 141-limiting hole; 142-support rib;

[0033] 20-driving assembly; 21-driving module; 211-pushing cylinder; 212-pushing plate; 22-movable base plate; 221-guide chute; 23-buffer;

[0034] 30 - bending actuator; 31 - guide portion; 311 - guide wheel; 312 - connecting column; 32 - sliding portion; 321 - connecting hole; 33 - bending portion; 331 - guide groove; 34 - elastic element;

[0035] 40- conveying assembly; 41- first conveying module; 411- first support frame; 412- first transmission wheel group; 413- first conveying belt; 414- first drive motor; 42- second conveying module; 43- position detection sensor;

[0036] 50-lifting module; 51-lifting plate; 52-lifting cylinder; 53-guide column;

[0037] 60-downward pressure module; 61-downward pressure plate; 62-downward pressure cylinder; 63-adjusting cylinder; 64-movable block. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] like Figures 1 to 7 As shown, the bidirectional bending mechanism of the present invention is used to bend the pins of electronic components on the PCB board. The above-mentioned bidirectional bending mechanism includes a connecting frame 10, a driving assembly 20 and a bending actuator 30. The connecting frame 10 includes a connecting substrate 11, a support column 12 and a connecting base plate 13 fixed from top to bottom, and a plurality of movable grooves 111 are provided through the connecting substrate 11. The driving assembly 20 includes a driving module 21 fixed on the connecting base plate 13 and a movable substrate 22 movably connected to the bottom of the connecting substrate 11; the movable substrate 22 is connected to the output end of the driving module 21; the movable substrate 22 is provided with a plurality of evenly distributed bending stations corresponding to the movable grooves 111, and two symmetrically inclined guide grooves 221 are provided in the bending stations. The bending actuator 30 is correspondingly arranged in the guide groove 221. The bending actuator 30 includes a guide part 31, a sliding part 32 and a bending part 33 arranged in sequence from bottom to top. The guide part 31 is slidably connected in the guide groove 221, the sliding part 32 is slidably connected in the movable groove 111, and the bending part 33 passes through the connecting substrate 11.

[0042] During operation, the PCB moves to the top of the connecting frame 10. The drive module 21 drives the movable base plate 22 to move. At this time, the slider slides along the guide slot 221. Due to the inclined setting of the guide slot 221, the two bending actuators 30 in the same bending station are driven to move toward or away from each other along the movable groove 111 synchronously to achieve bidirectional bending. The sliding cooperation between the inclined guide slot 221 and the bending actuator 30 ensures the symmetry and consistency of the bidirectional bending. At the same time, multiple bending stations are set on the movable base plate 22, which can bend multiple pins simultaneously to meet the needs of mass production and processing of electronic components.

[0043] It should be noted that in this embodiment, the drive module 21 drives the movable base plate 22 in the retraction direction, thereby moving the two bending actuators 30 away from each other, thereby simultaneously bending the two pins outward. In actual application, the movement direction of the two bending actuators 30 can be adjusted to meet different processing requirements by adjusting the orientation of the guide slots 221 or the movement direction of the drive module 21. In addition, the product includes multiple pins, each corresponding to a different bending station on the movable base plate 22, allowing for simultaneous bending of multiple pins.

[0044] See also Figure 4 and Figure 5 A limit plate 14 is provided on the top of the connection base plate 11. This limit plate 14 has a plurality of limit holes 141 corresponding to the movable slots 111. The length of these limit holes 141 is less than that of the movable slots 111, and they are used to limit the sliding travel of the bending actuator 30. Furthermore, the limit plate 14 is provided with staggered support ribs 142, which support the PCB. At this point, the bending portion 33 of the bending actuator 30 is flush with the pins, ensuring a good bending effect.

[0045] See also Figure 4 and Figure 5 The drive module 21 includes a driving cylinder 211 and a push plate 212. The push cylinder 211 is fixed to the connecting base plate 13, and the push plate 212 is connected to the driving end of the push cylinder 211. The push plate 212 is fixedly connected to the bottom of the movable base plate 22. The push cylinder 211 pushes the push plate 212 to move, driving the movable base plate 22 to move, thereby achieving synchronous movement toward or away from each other of the two bending actuators 30. In addition, the drive module 21 also includes a buffer 23. When the push plate 212 retracts, the push plate 212 abuts against the buffer 23, providing a flexible rebound effect.

[0046] See also Figure 6Next, the structure of the bending actuator 30 will be described in detail. The guide portion 31 includes a guide wheel 311 and a connecting column 312 provided on the top of the guide wheel 311. The connecting column 312 is inserted into the sliding portion 32; the provision of the guide wheel 311 can ensure the relative sliding smoothness of the guide portion 31 and the guide slide 221. The sliding portion 32 is arranged in a rectangular structure in conjunction with the movable groove 111. The side wall of the sliding portion 32 contacts the inner side wall of the movable groove 111, limiting the linear motion of the bending actuator 30 along the movable groove 111. The bending portion 33 is integrally formed at the top of the sliding portion 32, and a guide groove 331 is provided on one side of the bending portion 33. Specifically, the guide groove 331 includes two symmetrically arranged inclined surfaces. When the two bending actuators 30 move toward or away from each other, the inclined surfaces of the guide groove 331 and the pins squeeze each other, playing a guiding role, so that the pins are self-centered, thereby ensuring the bending quality.

[0047] Specifically, the bending actuator 30 also includes an elastic element 34 connected to one side of the sliding part 32. A connecting hole 321 is provided on one side of the sliding part 32. One end of the elastic element 34 is inserted into the connecting hole 321, and the other end of the elastic element 34 is connected to the end wall of the movable groove 111. The elastic element 34 is used to drive the bending actuator 30 to reset.

[0048] See also Figure 1 、 Figure 2 and Figure 7 The connecting frame 10 also includes a product conveying assembly 40, which includes a first conveying module 41 and a second conveying module 42 with the same structure, which are arranged on both sides of the connecting frame 10. The first conveying module 41 includes a first support frame 411, a first transmission wheel group 412 rotatably connected to one side of the first support frame 411, a first conveying belt 413 sleeved around the outside of the first transmission wheel group 412, and a first drive motor 414 installed on the other side of the first support frame 411 and drivingly connected to the first transmission wheel group 412. The second conveying module 42 includes a second support frame, a second transmission wheel group rotatably connected to one side of the second support frame, a second conveying belt sleeved around the outside of the second transmission wheel group, and a second drive motor installed on the other side of the second support frame and drivingly connected to the second transmission wheel group. The first conveying module 41 and the second conveying module 42 realize the feeding and discharging of the products to be processed, thereby improving the product rotation rate and processing efficiency.

[0049] Specifically, if Figure 3As shown, the first conveying module 41 and the second conveying module 42 are fixedly provided with a pressing module 60, and the pressing module 60 is arranged above the connecting frame 10; and the bottom of the connecting frame 10 is fixedly provided with a jacking module 50. When the first conveying module 41 and the second conveying module 42 convey the product to the position directly above the connecting frame 10, the jacking module 50 drives the connecting frame 10 to move upwards, so that the bending execution member 30 reaches the preset working height, at this time, the bending part 33 of the bending execution member 30 is flush with the pin; at the same time, the pressing module 60 presses the product to avoid shaking of the product during the bending process, thereby affecting the bending effect.

[0050] Specifically, the jacking module 50 includes a jacking plate 51 and a jacking cylinder 52 connected and driven, the jacking plate 51 is fixed to the bottom of the connecting bottom plate 13; and the jacking cylinder 52 drives the jacking plate 51 to vertically move up and down, so as to drive the connecting frame 10 to vertically move up and down as a whole. At the same time, the jacking plate 51 is connected with a guide column 53, which cooperates with an external guide sleeve to ensure the vertical movement of the jacking plate 51.

[0051] Specifically, the pressing module 60 includes a pressing plate 61 arranged above the connecting frame 10, and two pressing cylinders 62 arranged on the outer sides of the first conveying module 41 and the second conveying module 42 respectively; the pressing cylinder 62 drives the pressing plate 61 to move downwards, so as to press the product. Further, the pressing module 60 further includes an adjusting cylinder 63 arranged along the conveying direction of the first conveying module 41 and the second conveying module 42, the output end of the adjusting cylinder 63 is connected with a movable block 64, the pressing cylinder 62 is fixed to the movable block 64, and the adjusting cylinder 63 drives the movable block 64 to extend and retract, so as to adjust the position of the pressing module 60, thereby adapting to products of different sizes.

[0052] Specifically, the first conveying module 41 and the second conveying module 42 include an inlet end, a working end and an outlet end arranged in sequence along the conveying direction, and the inlet end, the working end and the outlet end are all provided with a position detection sensor 43, which is used for detecting the moving position of the product.

[0053] The working principle of the bidirectional bending mechanism is as follows:

[0054] The product after the previous process is conveyed to the position directly above the connecting frame 10 by the first conveying module 41 and the second conveying module 42. The jacking module 50 drives the connecting frame 10 to move upwards as a whole, so that the bending execution member 30 contacts the pin; at the same time, the pressing module 60 presses the product to avoid shaking. The driving module 21 drives the movable base plate 22 to move, so that the two bending execution members 30 in each bending station move towards or away from each other, and the bending execution member 30 contacts the pin to bend. After the bending is completed, the first conveying module 41 and the second conveying module 42 drive the product to be discharged.

[0055] Compared with the prior art, the bidirectional bending mechanism involved in the present invention, through the precise cooperation between the inclined guide slot 221 and the bending actuator 30, when the driving module 21 drives the movable base plate 22 to move, the two bending actuators 30 realize precise synchronous movement toward or away from each other under the guidance of the guide slot 221, which not only ensures the synchronization and stability of the bidirectional bending action, but also effectively avoids the offset or deformation during the pin bending process; the setting of the elastic element 34 enables the bending actuator 30 to have an automatic reset function, thereby improving the continuous operation efficiency; the combination design of the limit plate 14 and the support rib 142 not only accurately controls the bending stroke but also provides stable support; in conjunction with the product conveying component 40, the height-adjustable lifting module 50 and the downward fixing module, the full process automation operation from automatic product conveying to precise positioning and stable bending is realized, which greatly improves the processing accuracy and production efficiency of pin bending, and is particularly suitable for pin processing of high-density, large-volume electronic components.

[0056] The above description merely represents the preferred technical solution of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, and the present invention is intended to encompass such modifications and variations.

Claims

1. A bidirectional bending mechanism, characterized in that: include: A connecting frame, the connecting frame including a connecting base plate, a supporting column and a connecting bottom plate fixed from top to bottom, wherein a plurality of movable grooves are formed through the connecting base plate; A drive assembly, comprising a drive module fixed to the connecting base plate and a movable base plate movably connected to the bottom of the connecting base plate; the movable base plate is connected to the output end of the drive module; the movable base plate is provided with a plurality of evenly distributed bending stations corresponding to the movable grooves, and the bending stations are provided with two symmetrically inclined guide slots; A bending actuator, the bending actuator is correspondingly arranged in the guide slot, the bending actuator includes a guide portion, a sliding portion and a bending portion arranged in sequence from bottom to top, the guide portion is slidably connected to the guide slot, the sliding portion is slidably connected to the movable slot, and the bending portion passes through the connecting substrate; When the driving module drives the movable base plate to move, the slider slides along the guide groove, so that the two bending actuators in the same bending station move toward or away from each other synchronously along the movable groove to achieve bidirectional bending.

2. The bidirectional bending mechanism according to claim 1, characterized in that: The guide part includes a guide wheel and a connecting column arranged on the top of the guide wheel, and the connecting column is inserted into the sliding part; the sliding part is arranged in a rectangular structure; the bending part is integrally formed at the top of the sliding part, and a guide groove is provided on one side of the bending part.

3. The bidirectional bending mechanism according to claim 2, characterized in that: The bending actuator also includes an elastic element connected to one side of the sliding part. A connecting hole is provided on one side of the sliding part. One end of the elastic element is inserted into the connecting hole, and the other end of the elastic element is connected to the end wall of the movable groove. The elastic element is used to drive the bending actuator to reset.

4. The bidirectional bending mechanism according to claim 1, characterized in that: The driving module includes a drivingly connected pushing cylinder and a pushing plate, wherein the pushing cylinder is fixed on the connecting base plate, the pushing plate is connected to the driving end of the pushing cylinder, and the pushing plate is fixedly connected to the bottom of the movable base plate.

5. The bidirectional bending mechanism according to claim 1, characterized in that: A limit plate is provided on the top of the connecting base plate, and a plurality of limit holes are provided on the limit plate corresponding to the movable groove. The length of the limit hole is smaller than the length of the movable groove, and the limit hole is used to limit the sliding stroke of the bending actuator; the limit plate is provided with staggered support ribs, and the support ribs are used to support the product.

6. The bidirectional bending mechanism according to claim 1, characterized in that: It also includes a product conveying assembly, which includes a first conveying module and a second conveying module that are arranged on both sides of the connecting frame and have the same structure; The first conveying module includes a first support frame, a first transmission wheel group rotatably connected to one side of the first support frame, a first conveying belt sleeved on the outside of the first transmission wheel group, and a first driving motor installed on the other side of the first support frame and drivingly connected to the first transmission wheel group; The second conveying module includes a second support frame, a second transmission wheel group rotatably connected to one side of the second support frame, a second conveying belt sleeved on the outside of the second transmission wheel group, and a second driving motor installed on the other side of the second support frame and drivingly connected to the second transmission wheel group.

7. The bidirectional bending mechanism according to claim 6, characterized in that: A pressing module is fixed on the first conveying module and the second conveying module, and the pressing module is arranged above the connecting frame; a lifting module is fixed on the bottom of the connecting frame; the lifting module drives the connecting frame to move upward so that the bending actuator reaches a preset working height; the pressing module is used to press down and fix the product.

8. The bidirectional bending mechanism according to claim 7, characterized in that: The jacking module includes a jacking plate and a jacking cylinder that are driven and connected. The jacking plate is fixed to the bottom of the connecting base plate. The jacking cylinder drives the jacking plate to rise and fall vertically, thereby driving the entire connecting frame to rise and fall vertically.

9. The bidirectional bending mechanism according to claim 7, characterized in that: The pressing module includes a pressing plate arranged above the connecting frame, and two pressing cylinders respectively arranged on the outsides of the first conveying module and the second conveying module; the pressing cylinders drive the pressing plate to move downward to press the product.

10. The bidirectional bending mechanism according to claim 6, characterized in that: The first conveying module and the second conveying module include a feeding end, a working end and a discharging end sequentially arranged along the conveying direction, and the feeding end, the working end and the discharging end are all provided with position detection sensors.

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