One-time bending forming mechanism
By designing a bending forming mechanism driven by linkage arm, the problem of low bending forming efficiency of FPC soft plates in the prior art is solved, efficient bending forming is achieved in one go, and the accuracy and yield of the product are improved.
Patent Information
- Application Number
- CN202411583502.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-02-11
AI Technical Summary
The prior art is inefficient in the bending and forming process of FPC soft boards, especially when multiple bends are required, multiple equipment is required to cooperate, resulting in inefficiency.
A one-time bending forming mechanism is designed, and the first bending module and the second bending module are arranged to drive the linkage cooperation between the first bending module, the second bending pressure head and the third bending pressure The head is linked downward to achieve clamping until bending and forming is in place.
It improves the bending forming efficiency of FPC soft boards, ensures that the product can operate efficiently during assembly and production, and realizes automatic reset and high-precision bending forming through the design of pre-pressed components and elastic parts.
Smart Images
Figure CN119421328A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of automation technology, and in particular to a one-step bending and forming mechanism. Background Art
[0002] In the assembly and production process of 3C products such as mobile phones and tablets, in order to ensure the utilization of space, FPC soft boards (flexible circuit boards) are usually designed and used. Since the bending angles of FPC soft boards are various, FPC soft boards are usually pre-bent and formed during the assembly and production process. In the prior art, FPC soft boards are generally bent and formed by high-temperature shaping or mechanical structures, but high-temperature shaping has high requirements on the material and carrier of FPC soft boards. At present, there are also some FPC soft board bending mechanisms on the market, but when the same product requires multiple bends, multiple devices are required to complete the bending and forming, and the bending efficiency is low. Summary of the invention
[0003] The purpose of the present invention is to provide a one-time bending and forming mechanism, which drives the first bending module and the second bending module to cooperate with each other by setting a linkage arm, so that the first bending pressure head, the second bending pressure head and the third bending pressure head are linked downward and the pressure on the surface of the product to be bent changes. The same bending and forming mechanism can be used to achieve clamping and bending forming in one step, thereby improving the bending and forming efficiency of the product and ensuring that the product can operate efficiently during the assembly production process.
[0004] In order to achieve the above purpose, the following technical solutions are adopted:
[0005] A one-time bending and forming mechanism comprises a profiling jig, a frame, and a first bending module and a second bending module which are installed above the profiling jig via the frame; a linkage arm is connected to the upper end of the first bending module, and one end of the linkage arm extends to the upper part of the second bending module; during the descending process of the first bending module, the linkage arm can drive the second bending module to descend together to complete the bending and forming operation; the first bending module comprises a first bending pressure head and a second bending pressure head; when the first bending pressure head descends into place, the second bending pressure head can rotate to bend the product.
[0006] Preferably, the first bending module also includes at least one pre-stressing component arranged at the bottom of the first bending pressure head; a telescopic hole is opened at the bottom of the first bending pressure head corresponding to each pre-stressing component, which allows the pre-stressing component to telescope; the pre-stressing component includes a pre-stressing head, and a first elastic member arranged between the pre-stressing head and the telescopic hole; when the first bending pressure head is pressed down into place, the bottom end surface of the pre-stressing head is flush with the bottom surface of the first bending pressure head.
[0007] Preferably, the first bending module also includes a pressure plate arranged above the second bending pressure head, a first connecting block detachably connected to the first bending pressure head, a second connecting block arranged above the first connecting block, and a second elastic member arranged between the first connecting block and the second connecting block; the second connecting block and the pressure plate are respectively detachably connected to the linkage arm.
[0008] Preferably, the first bending module also includes a connecting rod connected to one side of the first connecting block and the second connecting block, and the pressure plate is arranged on the outside of the connecting rod; the second bending pressure head is installed on the connecting rod via a rotating shaft, and at least one torsion spring is arranged between the second bending pressure head and the rotating shaft.
[0009] Preferably, a slide slot hole is provided on the upper portion of the connecting rod in the vertical direction; a sliding shaft is extended from one end of the second connecting block, and the sliding shaft is movably arranged in the slide slot hole.
[0010] Preferably, the second bending module includes a third bending pressure head, a guide plate connected to the third bending pressure head, and a guide shaft installed on the frame; the guide plate is used to abut against the linkage arm to follow the linkage arm downward; the guide plate is provided with an oblique slot hole matching the guide shaft, so that the guide plate can drive the third bending pressure head to press obliquely downward toward the side close to the first bending pressure head.
[0011] Preferably, the linkage arm is provided with at least one roller at one end abutting against the guide plate; the linkage arm contacts the top of the guide plate via the roller.
[0012] Preferably, a third elastic member is further provided on the top of the guide plate, and the third elastic member is arranged along the length direction of the inclined slot hole; the upper end of the third elastic member is fixed to the frame, and the lower end is fixed to the guide plate.
[0013] Preferably, a fourth elastic member connected to the linkage arm is further provided on the top of the frame.
[0014] Preferably, the inner side wall of the frame is provided with a sliding assembly connected to the linkage arm in the vertical direction.
[0015] By adopting the above scheme, the beneficial effects of the present invention are:
[0016] The present invention drives the first bending module and the second bending module to cooperate with each other by setting a linkage arm, so that the first bending pressure head, the second bending pressure head, and the third bending pressure head move downward in linkage, and the pressure on the surface of the product to be bent changes. The same bending and forming mechanism can be used to achieve clamping and bending in one step, thereby improving the bending and forming efficiency of the product and ensuring that the product can operate efficiently during the assembly and production process. In the preferred embodiment, by setting the second elastic member, the third elastic member, and the fourth elastic member, the first bending module and the second bending module can be automatically reset after the bending and forming is completed. In addition, by setting a pre-pressing component, the product is clamped and positioned before the bending action, thereby improving the accuracy of the bending and forming and the yield of the bent product. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A perspective view of the present invention;
[0018] Figure 2 is a three-dimensional diagram of the first bending module of the present invention;
[0019] Figure 3 for Figure 2 A three-dimensional diagram omitting the first bending press head and the sliding assembly;
[0020] Figure 4 is a three-dimensional diagram of the second bending module of the present invention;
[0021] Figure 5 This is a three-dimensional picture of the FPC soft board before bending;
[0022] Figure 6 This is a three-dimensional picture of the FPC soft board after bending;
[0023] The accompanying drawings illustrate:
[0024] 1—Profiling fixture, 2—FPC soft board,
[0025] 3—frame, 4—first bending module,
[0026] 5—the second bending module, 6—the linkage arm,
[0027] 7—roller, 8—third elastic member,
[0028] 9—fourth elastic member, 10—sliding component,
[0029] 41 - first bending press head, 42 - second bending press head,
[0030] 43—pre-pressing assembly, 44—pressing plate,
[0031] 45—first connection block, 46—second connection block,
[0032] 47—second elastic member, 48—connecting rod,
[0033] 51—third bending pressure head, 52—guide plate,
[0034] 53—guide shaft, 54—bevel slot hole. DETAILED DESCRIPTION
[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0037] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0038] Reference Figures 1 to 6 As shown, the present invention provides a one-time bending and forming mechanism, including a profiling jig 1, a frame 3, and a first bending module 4 and a second bending module 5 installed on the top of the profiling jig 1 through the frame 3; the upper end of the first bending module 4 is connected to a linkage arm 6, and one end of the linkage arm 6 extends to the top of the second bending module 5; during the downward movement of the first bending module 4, the linkage arm 6 can drive the second bending module 5 to move downward together to complete the bending and forming operation; the first bending module 4 includes a first bending press 41 and a second bending press 42; when the first bending press 41 moves downward to the right position, the second bending press 42 can rotate to bend the product. Furthermore, when the pressing plate 44 does not apply force to the second bending press 42, the bottom surface of the second bending press 42 is higher than the bottom surface of the first bending press 41, so as to avoid the second bending press 42 damaging the product when the first bending press 41 bends the middle of the product.
[0039] Among them, the first bending module 4 also includes at least one pre-stressing component 43 arranged at the bottom of the first bending pressure head 41; a telescopic hole is opened at the bottom of the first bending pressure head 41 corresponding to each pre-stressing component 43, which can allow the pre-stressing component 43 to telescope; the pre-stressing component 43 includes a pre-stressing head, and a first elastic member arranged between the pre-stressing head and the telescopic hole; when the first bending pressure head 41 is pressed down into place, the bottom end surface of the pre-stressing head is flush with the bottom surface of the first bending pressure head 41.
[0040] In a specific embodiment, the pre-pressing head adopts a machine screw, and the number of turns of the machine screw can adjust the elastic force to a suitable clamping force value. In addition, since the machine screw has no head, it can be completely retracted into the telescopic hole, so that after the first bending press head 41 is lowered into place, the bottom end surface of the pre-pressing head is flush with the bottom surface of the first bending press head 41 to avoid crushing the product.
[0041] Since the pre-pressing head of the pre-pressing assembly 43 extends out of the bottom surface of the first bending pressing head 41 when not pressed down, by setting the first elastic member, when the first bending pressing head 41 is pressed down, the first elastic member is compressed, and the pre-pressing head presses and positions the product (equivalent to clamping the product); when the first bending pressing head 41 rises, the pre-pressing head can automatically extend under the elastic force of the first elastic member. By setting the pre-pressing assembly 43, the product is positioned before bending and forming, so as to avoid the product from moving out of position during bending and forming.
[0042] The first bending module 4 also includes a pressing plate 44 disposed above the second bending head 42, a first connecting block 45 detachably connected to the first bending head 41, a second connecting block 46 disposed above the first connecting block 45, and a second elastic member 47 disposed between the first connecting block 45 and the second connecting block 46; the second connecting block 46 and the pressing plate 44 are detachably connected to the linkage arm 6, respectively. Due to the requirements of the working environment and the fact that the product to be bent (FPC soft board 2) is very soft, the one-time bending and forming mechanism provided by the present invention does not contain electrical equipment and is a purely mechanical structure, and the downward pressure is entirely achieved manually. When performing the bending and forming operation, the operator manually pushes the pressing plate 44 to apply downward force. In addition, the frame 3 is also provided with at least one guide rod arranged in the vertical direction, and the second connecting block 46, the second elastic member 47, and the first connecting block 45 are movably arranged on the guide rod from top to bottom in sequence.
[0043] The first bending module 4 also includes a connecting rod 48 connected to one side of the first connecting block 45 and the second connecting block 46, and a pressure plate 44 is arranged on the outside of the connecting rod 48; the second bending pressure head 42 is installed on the connecting rod 48 via a rotating shaft, and at least one torsion spring is arranged between the second bending pressure head 42 and the rotating shaft. The second bending pressure head 42 is installed on the connecting rod 48 via a torsion spring and a rotating shaft, and the pressure plate 44 presses down to abut against the second bending pressure head 42 to make the second bending pressure head 42 rotate. Please continue to refer to Figure 6When the second bending head 42 rotates from a horizontal state to a vertical state, the part to be bent of the product is bent at a vertical angle (at D).
[0044] By setting the second elastic member 47, when the first bending press head 41 is pressed down into place, that is, the first bending press head 41 is limited by the profiling jig 1, the linkage arm 6 can drive the pressure plate 44 and the second connecting block 46 to continue to move downward, and the second elastic member 47 is compressed. In the process of continuing to move downward, the pressure plate 44 first contacts and abuts against the second bending press head 42 to rotate, so that the second bending press head 42 rotates from a horizontal state to a vertical state, and then the pressure plate 44 continues to move downward close to the second bending press head 42, so that the second bending press head 42 can maintain pressure in a vertical state; after the bending forming is completed, under the elastic force of the second elastic member 47, the pressure plate 44 can automatically reset to release the second bending press head 42.
[0045] A slide slot hole is formed on the upper portion of the connecting rod 48 in the vertical direction; a sliding shaft is extended from one end of the second connecting block 46, and the sliding shaft is movably disposed in the slide slot hole.
[0046] The second bending module 5 includes a third bending head 51, a guide plate 52 connected to the third bending head 51, and a guide shaft 53 installed on the frame 3; the guide plate 52 is used to abut against the linkage arm 6 to follow the linkage arm 6 downward; the guide plate 52 is provided with an oblique slot hole 54 matching the guide shaft 53, so that the guide plate 52 can drive the third bending head 51 to press obliquely downward toward the side close to the first bending head 41.
[0047] In a specific embodiment, please continue to refer to Figure 5 , is the FPC soft board 2 before bending; please continue to refer to Figure 6 , is the FPC soft board 2 after bending. The first bending head 41 has a first bending groove and a second bending groove at the bottom, and the third bending head 51 has a third bending groove at the bottom. Correspondingly, the profiling jig 1 has a first bending step, a second bending step, and a third bending step matching the first bending groove, the second bending groove, and the third bending groove, which are used to bend the A, B, and C of the product respectively; the second bending head 42 is used to bend the D of the product.
[0048] Furthermore, since the bending and holding time at points A and B of the product is long, there is no need to adjust the overpressure angle; points C and D of the product need to have an overpressure angle of about 5° to offset springback.
[0049] The linkage arm 6 is provided with at least one roller 7 at one end abutting against the guide plate 52; the linkage arm 6 contacts the top of the guide plate 52 via the roller 7. Since the linkage arm 6 abuts against the guide plate 52 and moves downward, it gives the guide plate 52 an oblique downward force, that is, there is a relative force in the downward direction and the horizontal direction, and by providing the roller 7 on the linkage arm 6, dry friction between the linkage arm 6 and the guide plate 52 can be effectively avoided.
[0050] A third elastic member 8 is also provided on the top of the guide plate 52, and the third elastic member 8 is arranged along the length direction of the inclined slot hole 54; the upper end of the third elastic member 8 is fixed to the frame 3, and the lower end is fixed to the guide plate 52. By providing the third elastic member 8, when the third bending press head 51 moves downward, the third elastic member 8 is stretched; after the bending forming is completed, the third bending press head 51 can be automatically reset under the elastic force of the third elastic member 8.
[0051] In addition, a fourth elastic member 9 connected to the linkage arm 6 is also provided on the top of the frame 3. Specifically, the fourth elastic member 9 is a spring reset spring, which can save installation space. The fourth elastic member 9 can drive the linkage arm 6 to reset, and then drive the first bending press head 41 and the second bending press head 42 to reset.
[0052] The inner side wall of the frame 3 is provided with a sliding assembly 10 connected to the linkage arm 6 in the vertical direction. Specifically, the sliding assembly 10 includes a slide rail provided on the inner side wall of the frame 3 and a slider slidably matched with the slide rail, and the linkage arm 6 is installed on the slider.
[0053] The working process of the present invention is as follows:
[0054] 1) The FPC soft board 2 to be bent is placed on the top of the profiling jig 1, and the operator manually pushes the pressing plate 44 downward, at which time the linkage arm 6 drives the first bending press head 41 and the second bending press head 42 downward together;
[0055] 2) The first bending press head 41 presses the middle part of the FPC soft board 2, so that the A and B parts of the FPC soft board 2 are bent into shape;
[0056] 3) Continue to push the pressing plate 44 downward, thereby driving the second connecting block 46 to compress the second elastic member 47, and the pressing plate 44 abuts against the second bending press head 42 to rotate, and the second bending press head 42 rotates from a horizontal state to a vertical state, so that the D of the FPC soft board 2 is bent and formed;
[0057] 4) Continue to push the pressing plate 44 downward so that the second bending pressing head 42 remains in a vertical state to press the FPC soft board 2 at D;
[0058] 5) When the second elastic member 47 is compressed, the roller 7 on the linkage arm 6 contacts the top of the guide plate 52, thereby driving the guide plate 52 downward, and the third bending press head 51 presses down the C of the bent FPC soft board 2;
[0059] 6) Release the pressing plate 44. Under the action of the second elastic member 47, the third elastic member 8 and the fourth elastic member 9, the second bending pressing head 42, the third bending pressing head 51 and the first bending pressing head 41 rise and reset; under the action of the first elastic member, the pre-pressing head extends out of the telescopic hole;
[0060] 7) The operator takes out the bent FPC soft board 2.
[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.
Claims
1. A one-step bending forming mechanism, characterized in that: It includes a profiling jig, a frame, and a first bending module and a second bending module installed above the profiling jig via the frame; a linkage arm is connected to the upper end of the first bending module, and one end of the linkage arm extends to the top of the second bending module; during the downward movement of the first bending module, the linkage arm can drive the second bending module to move downward together to complete the bending and forming operation; the first bending module includes a first bending pressure head and a second bending pressure head; when the first bending pressure head moves down to the right position, the second bending pressure head can rotate to bend the product.
2. The one-step bending forming mechanism according to claim 1, characterized in that: The first bending module also includes at least one pre-stressing component arranged at the bottom of the first bending pressure head; a telescopic hole is opened at the bottom of the first bending pressure head corresponding to each pre-stressing component, which allows the pre-stressing component to telescope; the pre-stressing component includes a pre-stressing head, and a first elastic member arranged between the pre-stressing head and the telescopic hole; when the first bending pressure head is pressed down into place, the bottom end surface of the pre-stressing head is flush with the bottom surface of the first bending pressure head.
3. The one-step bending forming mechanism according to claim 1, characterized in that: The first bending module also includes a pressure plate arranged above the second bending pressure head, a first connecting block detachably connected to the first bending pressure head, a second connecting block arranged above the first connecting block, and a second elastic member arranged between the first connecting block and the second connecting block; the second connecting block and the pressure plate are respectively detachably connected to the linkage arm.
4. The one-step bending and forming mechanism according to claim 3, characterized in that: The first bending module also includes a connecting rod connected to one side of the first connecting block and the second connecting block, and the pressure plate is arranged on the outside of the connecting rod; the second bending pressure head is installed on the connecting rod via a rotating shaft, and at least one torsion spring is arranged between the second bending pressure head and the rotating shaft.
5. The one-step bending and forming mechanism according to claim 4, characterized in that: A slide slot hole is formed on the upper part of the connecting rod in the vertical direction; a sliding shaft is extended from one end of the second connecting block, and the sliding shaft is movably arranged in the slide slot hole.
6. The one-step bending and forming mechanism according to claim 1, characterized in that: The second bending module includes a third bending pressure head, a guide plate connected to the third bending pressure head, and a guide shaft installed on the frame; the guide plate is used to abut against the linkage arm to follow the linkage arm downward; the guide plate is provided with an oblique slot hole matching the guide shaft, so that the guide plate can drive the third bending pressure head to press obliquely downward toward the side close to the first bending pressure head.
7. The one-step bending and forming mechanism according to claim 6, characterized in that: The linkage arm is provided with at least one roller at one end abutting against the guide plate; the linkage arm contacts the top of the guide plate via the roller.
8. The one-step bending and forming mechanism according to claim 6, characterized in that: A third elastic member is also provided on the top of the guide plate, and the third elastic member is arranged along the length direction of the inclined slot hole; the upper end of the third elastic member is fixed to the frame, and the lower end is fixed to the guide plate.
9. The one-step bending and forming mechanism according to claim 1, characterized in that: A fourth elastic member connected to the linkage arm is also provided on the top of the frame.
10. The one-step bending and forming mechanism according to claim 1, characterized in that: The inner side wall of the frame is provided with a sliding assembly connected with the linkage arm in the vertical direction.