High-precision flexible circuit board tooling

Abstract

The utility model discloses a kind of high-precision flexible circuit board tool, including substrate, placing surface for placing flexible circuit board is equipped on the substrate upper side, a plurality of fixed positioning pins are equipped at the placing surface one end, another end is equipped with a plurality of mobile positioning pins, mobile block is equipped at the mobile positioning pin bottom, the mobile block can be reciprocated to the fixed positioning pin direction close or far and be set on the substrate, and reset elastic member for driving it to move far from the fixed positioning pin direction is further equipped on the mobile block, eccentric cam for being in contact with it to drive it to move is equipped beside the mobile block, control handle controlled and connected with the eccentric cam is equipped on the substrate.The utility model can realize the unfolding and tensioning of flexible circuit board by mobile positioning pin and fixed positioning pin cooperation, various processing operations are facilitated to flexible circuit board, improve precision and operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, and in particular to high-precision flexible circuit board tooling. Background Technology

[0002] With the development of modern electronic technology, more and more electronic devices are being widely used, which has led to the increasing maturity of FPC (Flexible Printed Circuit) technology. Currently, FPC has become an essential component in electronic devices, especially miniaturized and intelligent electronic devices. During the surface mount technology (SMT) process, the flexible circuit board itself is relatively soft and lacks rigidity, making it difficult to maintain its flatness. Appropriate fixtures are needed to fix the flexible circuit board. However, existing fixtures have the problem that, due to the softness of the flexible circuit board material and the need for SMT after positioning, operators often cannot perform SMT on uneven flexible circuit boards effectively. This means that after positioning, operators need to manually smooth the flexible circuit board before fixing it. Therefore, while traditional fixtures can position the flexible circuit board, they cannot flatten it after positioning, making the operation inconvenient and inefficient. Utility Model Content

[0003] The purpose of this invention is to solve the problems in the prior art by proposing a high-precision flexible circuit board fixture that can unfold and tension the flexible circuit board, allowing it to be placed more flatly on the fixture.

[0004] To achieve the above objectives, this utility model proposes a high-precision flexible circuit board fixture, including a substrate. A placement surface for placing the flexible circuit board is provided on the upper side of the substrate. A plurality of fixed positioning pins are provided at one end of the placement surface, and a plurality of movable positioning pins are provided at the other end. A movable block is provided at the bottom of each movable positioning pin. The movable block is reciprocating on the substrate and can move towards or away from the fixed positioning pins. A reset elastic element is also provided on the movable block for driving it to move away from the fixed positioning pins. An eccentric cam is provided next to the movable block for engaging with it to drive its movement. A control handle connected to the eccentric cam is provided on the substrate.

[0005] Preferably, the substrate is provided with a sliding groove that cooperates with the movable block, the movable block is slidably disposed in the sliding groove, the eccentric cam is disposed in the sliding groove at one end away from the fixed positioning pin, and the control handle is provided with a shaft that passes through the substrate and is connected to the eccentric cam at an eccentric position.

[0006] Preferably, the slide groove is provided with a slide rod arranged along its axial direction, the moving block is slidably disposed on the slide rod, and the reset elastic element is a spring sleeved on the slide rod.

[0007] Preferably, the movable block is provided with a semi-annular groove that cooperates with the slide rod, the lower side of the semi-annular groove is provided with a slot for the slide rod to pass through, and the inner wall of the semi-annular groove is provided with a magnetic block for magnetically engaging with the slide rod.

[0008] Preferably, the movable block is provided with a semi-annular groove that cooperates with the slide rod, the lower side of the semi-annular groove is provided with a slot for the slide rod to pass through, and clamping blocks for cooperating with the slide rod are provided on both sides of the slot.

[0009] Preferably, both the movable block and the base plate are provided with a plurality of insertion holes, and the movable positioning pin and the fixed positioning pin are inserted into the insertion holes.

[0010] The beneficial effects of this high-precision flexible circuit board tooling are as follows: This utility model can unfold and tension the flexible circuit board by cooperating with the movable positioning pin and the fixed positioning pin, which facilitates various processing operations on the flexible circuit board and improves accuracy and ease of operation.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a top view schematic diagram of a high-precision flexible circuit board tooling according to this utility model.

[0013] Figure 2 This is a schematic diagram of the main structure of a high-precision flexible circuit board tooling according to this utility model.

[0014] Figure 3 This is a schematic diagram of the front cross-sectional structure of a high-precision flexible circuit board tooling according to this utility model.

[0015] Figure 4 This is a schematic diagram of the moving block and slide bar structure of a high-precision flexible circuit board tooling according to Embodiment 2 of this utility model.

[0016] Figure 5 This is a schematic diagram of the moving block and slide bar structure of a high-precision flexible circuit board tooling according to Embodiment 3 of this utility model.

[0017] In the figure: 1-base plate, 2-fixed positioning pin, 3-moving positioning pin, 4-moving block, 5-reset elastic element, 6-eccentric cam, 7-control handle, 8-slide rod, 9-clamping block, 12-slide groove, 13-insertion hole, 41-slot, 43-semi-annular groove, 71-shaft, 72-limiting block, 121-slide rail, 122-blocking block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0019] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0020] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. 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, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1:

[0023] See Figures 1-3 This utility model discloses a high-precision flexible circuit board fixture, including a substrate 1. The upper surface of the substrate 1 is set as a smooth plane as a placement surface for placing the flexible circuit board. A plurality of fixed positioning pins 2 are provided at one end of the placement surface, and a plurality of movable positioning pins 3 are provided at the other end. The positioning pins at both ends cooperate with the positioning holes reserved on the flexible circuit board to achieve positioning and fixing of the flexible circuit board.

[0024] For details, please refer to Figure 1 , Figure 3 A movable block 4 is provided at the bottom of the movable positioning pin 3. The movable block 4 is provided on the base plate 1 and can reciprocate towards or away from the fixed positioning pin 2. The movable block 4 is also provided with a reset elastic member 5 for driving it to move away from the fixed positioning pin 2. An eccentric cam 6 is provided next to the movable block 4 for engaging with it to drive its movement. A control handle 7 is provided on the base plate 1 and is controlled to be connected to the eccentric cam 6. In this embodiment, the movable positioning pin 3 and the fixed positioning pin 2 cooperate to unfold and tension the flexible circuit board, thereby facilitating the processing of the flexible circuit board and improving accuracy. In use, the eccentric cam 6 is first rotated by the control handle 7 so that the stroke apex side of the eccentric cam 6 abuts against the movable block 4. At this time, the movable block 4 is located closest to the fixed positioning pin 2. Then, the flexible circuit board is placed on the placement surface, and the positioning holes at both ends of the flexible circuit board are fitted onto the corresponding fixed positioning pin 2 and movable positioning pin 3. Then, the control handle 7 controls the eccentric cam 6 to rotate again so that the stroke apex side of the eccentric cam 6 separates from the movable block 4, so that the base circle of the eccentric cam 6 faces the movable block 4. The side of the movable block 4 loses the squeezing force of the eccentric cam 6. Under the action of the reset elastic element 5, the movable block 4 moves away from the fixed positioning pin 2, and the distance between the fixed positioning pin 2 and the movable positioning pin 3 increases, thereby unfolding and tensioning the flexible circuit board, which facilitates various processing operations on the flexible circuit board.

[0025] For details, please refer to Figure 1 , Figure 3The base plate 1 is provided with a sliding groove 12 that cooperates with the moving block 4. The moving block 4 is slidably disposed in the sliding groove 12. The eccentric cam 6 is disposed in the sliding groove 12 at one end away from the fixed positioning pin 2. The control handle 7 is provided with a shaft 71. The shaft 71 passes through the base plate 1 and is connected to the eccentric cam 6 at an eccentric position.

[0026] See Figure 1 Both the movable block 4 and the base plate 1 are provided with a plurality of insertion holes 13, and the movable positioning pin 3 and the fixed positioning pin 2 are inserted into the insertion holes 13. The positions of the movable positioning pin 3 and the fixed positioning pin 2 are adjustable, and the movable positioning pin 3 and the fixed positioning pin 2 can be set in corresponding positions according to different flexible circuit boards.

[0027] See Figure 2 The base plate 1 is also provided with a limiting block 72 for cooperating with the control handle 7, which is used to limit the active position of the control handle 7.

[0028] Example 2:

[0029] See Figure 1 , Figure 4 The slide groove 12 is provided with a slide rod 8 arranged along its axial direction. The moving block 4 is slidably disposed on the slide rod 8. The reset elastic element 5 is a spring sleeved on the slide rod 8.

[0030] See Figure 1 , Figure 4 The movable block 4 is provided with a semi-annular groove 43 that mates with the slide rod 8. The lower side of the semi-annular groove 43 has an opening for the slide rod 8 to pass through. The inner wall of the semi-annular groove 43 is provided with a magnetic block for magnetic attraction with the slide rod 8. In this embodiment, the semi-annular groove 43 on the movable block 4 for mates with the slide rod 8 is set as an open structure, which facilitates the removal of the movable block 4 from the slide rod 8, making replacement and maintenance easier. It also allows for the selection of different movable blocks 4 according to different situations. By setting the magnetic block to magnetically engage with the slide rod 8, the stability of the movable block 4 on the slide rod 8 is improved.

[0031] Example 3:

[0032] See Figures 1-5 The difference between this embodiment and Embodiment 2 is that the movable block 4 is provided with a semi-annular groove 43 that cooperates with the slide rod 8. The lower side of the semi-annular groove 43 has a slot for the slide rod 8 to pass through, and clamping blocks 9 for cooperating with the slide rod 8 are provided on both sides of the slot. This embodiment provides another way for the sliding block 4 and the slide rod 8 to cooperate, with clamping blocks 9 cooperating with the slide rod 8, making installation and disassembly convenient and sliding smooth.

[0033] The working process of this utility model:

[0034] In operation, this high-precision flexible circuit board fixture first controls the rotation of the eccentric cam 6 via the control handle 7, so that the stroke apex side of the eccentric cam 6 abuts against the moving block 4. At this time, the moving block 4 is located closest to the fixed positioning pin 2. Then, the flexible circuit board is placed on the placement surface, and the positioning holes at both ends of the flexible circuit board are fitted onto the corresponding fixed positioning pin 2 and moving positioning pin 3. Then, the control handle 7 controls the rotation of the eccentric cam 6 again, so that the stroke apex side of the eccentric cam 6 separates from the moving block 4, so that the base circle of the eccentric cam 6 faces the moving block 4. The side of the moving block 4 loses the squeezing force of the eccentric cam 6, and the moving block 4 moves away from the fixed positioning pin 2 under the action of the reset elastic element 5. The distance between the fixed positioning pin 2 and the moving positioning pin 3 increases, thereby unfolding and tensioning the flexible circuit board.

[0035] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The internal components of the electric slide rail, cylinder, welding machine, electric telescopic rod and controller all adopt conventional models in the existing technology, and their internal structure belongs to the existing technology structure. Workers can complete the normal operation of them according to the existing technical manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and will not be described in detail here.

[0036] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A high-precision flexible circuit board fixture, comprising a substrate (1), wherein a placement surface for placing a flexible circuit board is provided on the upper side of the substrate (1), characterized in that: A plurality of fixed positioning pins (2) are provided at one end of the placement surface and a plurality of movable positioning pins (3) are provided at the other end. A movable block (4) is provided at the bottom of the movable positioning pin (3). The movable block (4) is provided on the base plate (1) and can reciprocate in the direction of approaching or moving away from the fixed positioning pin (2). The movable block (4) is also provided with a reset elastic element (5) for driving it to move away from the fixed positioning pin (2). An eccentric cam (6) is provided next to the movable block (4) for engaging with it to drive it to move. A control handle (7) is provided on the base plate (1) and controlled by the eccentric cam (6).

2. The high-precision flexible circuit board tooling as described in claim 1, characterized in that: The base plate (1) is provided with a sliding groove (12) that cooperates with the moving block (4). The moving block (4) is slidably disposed in the sliding groove (12). The eccentric cam (6) is disposed in the sliding groove (12) at one end away from the fixed positioning pin (2). The control handle (7) is provided with a shaft (71). The shaft (71) passes through the base plate (1) and is connected to the eccentric cam (6) at an eccentric position.

3. The high-precision flexible circuit board tooling as described in claim 2, characterized in that: The groove (12) is provided with a slide rod (8) arranged along its axial direction. The moving block (4) is slidably disposed on the slide rod (8). The reset elastic element (5) is a spring sleeved on the slide rod (8).

4. The high-precision flexible circuit board tooling as described in claim 3, characterized in that: The movable block (4) is provided with a semi-annular groove (43) that cooperates with the slide rod (8). The lower side of the semi-annular groove (43) is provided with a slot for the slide rod (8) to pass through. The inner wall of the semi-annular groove (43) is provided with a magnetic block for magnetically engaging with the slide rod (8).

5. The high-precision flexible circuit board tooling as described in claim 3, characterized in that: The movable block (4) is provided with a semi-annular groove (43) that cooperates with the slide rod (8). The lower side of the semi-annular groove (43) is provided with a slot for the slide rod (8) to pass through. Clamping blocks (9) for cooperating with the slide rod (8) are provided on both sides of the slot.

6. The high-precision flexible circuit board tooling as described in claim 1, characterized in that: The movable block (4) and the base plate (1) are provided with a plurality of insertion holes (13), and the movable positioning pin (3) and the fixed positioning pin (2) are inserted into the insertion holes (13).

Images