A corner bending tool for flexible circuit board production
Patent Information
- Application Number
- CN202521430224.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-07-09
AI Technical Summary
[0008]与现有技术相比，本实用新型的有益效果是：通过定位板、弯折槽与工装底座之间的可拆卸式安装，使工装可以根据不同型号的线路板以及不同的弯折需求，替换不同的定位板和弯折槽，通过限位块与定位板配合实现对线路板的固定，防止弯折时发生偏移。
Smart Images
Figure CN224790847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment for flexible circuit board production, specifically a bending and folding tooling for flexible circuit board production. Background Technology
[0002] In electronic devices, flexible circuit boards can adapt to complex structures. To better fit the shape and functional requirements of the product, some areas of the flexible circuit board are usually designed with folded corners. The folding process of flexible circuit boards requires placing the flexible circuit board on a specific fixture for fixation. After preheating with a hot air blower, the stable vertical pressure provided by the hydraulic system drives the stamping plate to press down and bend the flexible circuit board on the fixture. In order to enable the fixture to be able to fix various types of flexible circuit boards, this utility model proposes a folding and bending fixture for the production of flexible circuit boards. Utility Model Content
[0003] The purpose of this invention is to provide a bending fixture for flexible circuit board production to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a bending fixture for flexible circuit board production, comprising a fixture base and a positioning plate, a bending groove, and a limiting block mounted on the fixture base. The fixture base is frame-shaped, with first mounting grooves on the front and rear sides and multiple pairs of second mounting grooves on the left and right sides. The top of the fixture base and the sides of the first mounting grooves have slots. The positioning plate is mounted on the first mounting groove, and a positioning post is provided on the top of the positioning plate. The bending groove is mounted on the second mounting groove, and the limiting block can be engaged with the slot. Screw holes are present in both the first and second mounting grooves. A mounting plate is fixedly mounted on the side of the positioning plate, and bolts for connecting with the screw holes are screwed onto the mounting plate. A fixing block is fixedly mounted on the side of the bending groove, and bolts for connecting with the screw holes are screwed onto the fixing block. The positioning plate, bending groove, and fixture base are fixedly connected by bolts.
[0005] Preferably, a pressing post is slidably disposed at the bottom of the limiting block. The pressing post has a groove at its bottom for a positioning post to insert into. One end of the pressing post is slidably disposed within the limiting block and connected to a first spring disposed within the limiting block. The flexible circuit board typically has positioning holes, allowing the positioning post on the positioning block to pass through these holes, preventing the circuit board from shifting during bending. Simultaneously, the installation of the upper limiting block causes the pressing post on the limiting block to press against the circuit board, preventing relative sliding between the non-bending parts of the circuit board and the positioning post during bending.
[0006] Preferably, a rubber pad is provided around the groove at the bottom of the extrusion column. The extrusion column applies extrusion force to the circuit board through the elastic force of the first spring. In order to prevent the pressure of the extrusion column on the circuit board from damaging the circuit board, a rubber pad or other buffer material is provided at the contact position between the extrusion column and the circuit board for buffering.
[0007] Preferably, a slider is slidably mounted on the limiting block, and a locking block is fixedly connected to the bottom of the slider. One end of the locking block protrudes from the limiting block and has a hook-shaped protrusion. The end of the slider located inside the limiting block is connected to a second spring located inside the limiting block. A corresponding slot has a locking opening for the hook-shaped protrusion of the locking block to engage. The limiting block has a slot for the locking block to move along with the slider.
[0008] Compared with the prior art, the beneficial effects of this utility model are: through the detachable installation between the positioning plate, the bending groove and the tooling base, the tooling can replace different positioning plates and bending grooves according to different models of circuit boards and different bending requirements. The circuit board is fixed by the cooperation of the limiting block and the positioning plate, preventing displacement during bending. Attached Figure Description
[0009] Figure 1 This is a top view schematic diagram of the connection structure between the tooling base, positioning plate, and bending groove of this utility model; Figure 2 This is a front sectional view of the tooling base and positioning plate, the bending groove connection structure, and the limiting block and extrusion column connection structure of this utility model. Figure 3 This is a front sectional view of the connection structure between the tooling base and the limiting block of this utility model.
[0010] In the figure: 1 tooling base, 11 first mounting slot, 12 second mounting slot, 13 slot, 2 positioning plate, 21 mounting plate, 22 positioning post, 3 bending slot, 31 fixing block, 4 limiting block, 41 extrusion post, 42 first spring, 43 slider, 44 slot, 45 second spring. Detailed Implementation
[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0012] Referring to Figures (1-3), a bending fixture for flexible circuit board production includes a fixture base 1 and a positioning plate 2, a bending groove 3, and a limiting block 4 mounted on the fixture base 1. The fixture base 1 is frame-shaped, with first mounting grooves 11 on the front and rear sides and multiple pairs of second mounting grooves 12 on the left and right sides. The fixture base 1 has a slot 13 on the top and the side of the first mounting groove 11. The positioning plate 2 is mounted on the first mounting groove 11, and a positioning post 22 is provided on the top of the positioning plate 2. The bending groove 3 is mounted on the second mounting groove 12, and the limiting block 4 can be engaged with the slot 13.
[0013] A pressing post 41 is slidably disposed at the bottom of the limiting block 4. The bottom of the pressing post 41 has a groove for the insertion of a positioning post 22. One end of the pressing post 41 is slidably disposed within the limiting block 4 and connected to a first spring 42 disposed within the limiting block 4. A rubber pad is provided around the groove opening at the bottom of the pressing post 41. A slider 43 is slidably disposed on the limiting block 4. A locking block 44 is fixedly connected to the bottom of the slider 43. One end of the locking block 44 protrudes from the limiting block 4 and has a hook-shaped protrusion. The end of the slider 43 located within the limiting block 4 is connected to a second spring 45 disposed within the limiting block 4.
[0014] In use, the positioning plate 2 and bending groove 3 are bolted onto the fixture base 1. The circuit board is placed on the positioning plate 2, and the positioning pin 22 passes through the positioning hole on the circuit board. Then, the limiting block 4 is installed on the fixture base 1, so that the area of the circuit board to be bent is above the bending groove 3. When installing the limiting block 4, the positioning pin 22 is inserted into the groove at the bottom of the pressing pin 41, and the pressing pin 41 is in contact with the surface of the circuit board. At the same time, the slider 43 is pressed. After the locking block 44 enters the locking groove 13, the slider 43 is released. Under the action of the second spring 45, the hook-shaped protrusion of the slider 43 enters the locking slot at the bottom of the locking groove 13, thus fixing the limiting block 4. Under the action of the first spring 42, the pressing pin 41 presses the circuit board below, thus achieving the placement, positioning and fixing of the circuit board.
[0015] The orientations or positional relationships shown in the accompanying drawings are for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A bending fixture for flexible circuit board production, comprising a fixture base (1) and a positioning plate (2), a bending groove (3), and a limiting block (4) mounted on the fixture base (1), characterized in that: The tooling base (1) is frame-shaped, with first mounting slots (11) on the front and rear sides and multiple pairs of second mounting slots (12) on the left and right sides. The tooling base (1) has a slot (13) on the top and the side of the first mounting slot (11). The positioning plate (2) is installed on the first mounting slot (11) and a positioning post (22) is provided on the top of the positioning plate (2). The bending slot (3) is installed on the second mounting slot (12). The limiting block (4) can be snapped into the slot (13).
2. The bending fixture for flexible circuit board production according to claim 1, characterized in that: The bottom of the limiting block (4) is slidably provided with an extrusion column (41). The bottom of the extrusion column (41) is provided with a groove for the positioning column (22) to be inserted. One end of the extrusion column (41) is slidably provided in the limiting block (4) and connected to the first spring (42) provided in the limiting block (4).
3. The bending fixture for flexible circuit board production according to claim 2, characterized in that: A rubber pad is provided around the groove at the bottom of the extrusion column (41).
4. The bending fixture for flexible circuit board production according to claim 1, characterized in that: A slider (43) is slidably disposed on the limiting block (4). A locking block (44) is fixedly connected to the bottom of the slider (43). One end of the locking block (44) protrudes from the limiting block (4) and is provided with a hook-shaped protrusion. One end of the slider (43) located inside the limiting block (4) is connected to a second spring (45) disposed inside the limiting block (4).