CN215881346U

CN215881346U - Tensioning and positioning device for FPC (Flexible printed Circuit) substrate

Info

Publication number: CN215881346U
Application number: CN202121623417.5U
Authority: CN
Inventors: 肖周勇; 刘建中
Original assignee: Optofidelity High Tech Zhuhai Ltd
Current assignee: Optofidelity High Tech Zhuhai Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-02-22
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a tensioning and positioning device of an FPC (flexible printed circuit) substrate, and aims to provide a tensioning and positioning device of an FPC substrate, which is simple in structure, quick and efficient and does not need an auxiliary device. The tensioning mechanism comprises two groups of X-axis driving structures symmetrically arranged along the length direction of the bottom plate and two groups of Y-axis driving structures symmetrically arranged along the width direction of the bottom plate, each Y-axis driving structure comprises an X-axis direction linear motion assembly, a sliding seat, a limiting assembly and a first linear guide rail, at least two sliding seats are arranged on each first linear guide rail, each sliding seat is in sliding fit with the corresponding first linear guide rail, at least one positioning mechanism is arranged on each sliding seat, and each X-axis driving structure comprises a Y-axis direction linear motion assembly and a second linear guide rail which is in sliding fit with the sliding seats on the same side of the two groups of Y-axis driving structures. The utility model is applied to the field of flexible circuit board tensioning and positioning.

Description

Tensioning and positioning device for FPC (Flexible printed Circuit) substrate

Technical Field

The utility model relates to the field of flexible circuit board tensioning and positioning, in particular to a tensioning and positioning device for an FPC (flexible printed circuit) substrate.

Background

The flexible circuit board is called FPC for short, and is also called flexible circuit board and flexible circuit board. With the rapid development of the electronic industry, the design of the circuit board tends to be high in precision and density, the traditional manual detection method cannot meet the production requirement, and the automatic detection of the FPC defect becomes an inevitable trend of the industrial development.

FPC has characteristics such as thickness is thin, can freely bend folding, increases the degree of difficulty for the automatic test of line needle machine like this, and FPC can have the warpage in the testing process, can lead to missing to survey, wrong survey, influences test accuracy and precision. The common method for testing a single FPC is to design a slotted hole which is the same as the FPC to be tested, and the pressing of an upper jig and a lower jig is used for flattening the FPC surface, so that the testing efficiency is low; the FPC is flattened by adopting a four-corner clamping and tensioning mode in the test of the whole FPC, the clamping deviation exists in the clamping mode, or other auxiliary structures are required to be adjusted, the cost is increased, the efficiency is influenced, the XY direction movement is realized independently at each corner, 8 power devices are required, and the cost, the assembly process and the installation difficulty are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides the tensioning and positioning device of the FPC substrate, which has a simple structure, is quick and efficient and does not need an auxiliary device.

The technical scheme adopted by the utility model is as follows: including bottom plate, straining device and a plurality of positioning mechanism, straining device includes two X axle drive structures that set up along bottom plate length direction symmetry and two sets of Y axle drive structures that set up along bottom plate width direction symmetry, Y axle drive structure includes X axle direction linear motion subassembly, sliding seat, spacing subassembly and first linear guide, be equipped with two sliding seats on the first linear guide at least, the sliding seat with first linear guide sliding fit, be provided with one at least on the sliding seat positioning mechanism, X axle drive structure include Y axle direction linear motion subassembly and simultaneously with two sets of same one side of Y axle drive structure sliding seat sliding fit's second linear guide.

Further, positioning mechanism includes round pin post, supporting step and trachea, a plurality of through-holes have been seted up to the supporting step, the round pin post is located on the supporting step, a plurality of through-holes all pass through trachea and outside vacuum generator intercommunication.

Further, Y axle direction linear motion subassembly with X axle direction linear motion subassembly all includes sharp drive element, first locating piece and a plurality of first connecting piece, first connecting piece with sharp drive element expansion end is connected, first connecting piece with first locating piece screw-thread fit, first locating piece pass through the retaining member with first linear guide fixed connection.

Furthermore, the sliding seat comprises a first sliding block, a second sliding block and a connecting block, the first sliding block is in sliding fit with the first linear guide rail, the second sliding block is in sliding fit with the second linear guide rail, and the first sliding block and the second sliding block are fixedly connected with the connecting block.

Further, spacing subassembly includes two sets of slide rail set spares that set up along bottom plate length direction symmetry, slide rail set spare includes spacing guide rail, spacing slider and spacing connecting piece, spacing slider sliding connection in spacing guide rail, spacing connecting piece with spacing slider fixed connection, first linear guide set up in spacing connecting block top.

The utility model discloses a tensioning and positioning device of an FPC (flexible printed circuit) substrate, which has the beneficial effects that: because the utility model adopts the design of FPC tensioning and positioning, comprising the bottom plate, the tensioning mechanism and the plurality of positioning mechanisms, the utility model has the advantages of low operation difficulty, convenience, high efficiency, simple structure and labor cost reduction.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the positioning mechanism;

fig. 3 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

To clearly illustrate the idea of the present invention, the present invention is described below with reference to examples.

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the example of the present invention, and it is obvious that the described example is only a part of the example of the present invention, and not a whole example. All other embodiments obtained by a person skilled in the art based on the examples of the present invention without any inventive step shall fall within the scope of protection of the present invention.

As shown in fig. 1, 2 and 3, in the present embodiment, the present invention includes a base plate 1, a tensioning mechanism 2 and a plurality of positioning mechanisms 3, the tensioning mechanism 2 comprises two X-axis driving structures 4 symmetrically arranged along the length direction of the bottom plate and two groups of Y-axis driving structures 5 symmetrically arranged along the width direction of the bottom plate, the Y-axis driving structure 5 comprises an X-axis direction linear motion assembly 6, a sliding seat 7, a limiting assembly 8 and a first linear guide rail 9, at least two sliding seats 7 are arranged on the first linear guide rail 9, the sliding seats 7 are in sliding fit with the first linear guide rail 9, the sliding seat 7 is provided with at least one positioning mechanism 3, and the X-axis driving structure 4 comprises a Y-axis direction linear motion assembly 10 and two sets of second linear guide rails 11 which are in sliding fit with the sliding seat 7 on the same side of the Y-axis driving structure. Adopt such design to have the advantage that need not add extra auxiliary device in the tensioning process, and simple structure, the operation degree of difficulty are low, are of value to the promotion of efficiency.

In this embodiment, the positioning mechanism 3 of the present invention includes a pin 12, a supporting step 13 and an air pipe 14, the supporting step 13 is provided with a plurality of through holes, the pin 12 is disposed on the supporting step 13, the through holes are all communicated with an external vacuum generator through the air pipe 14, a right-angle positioning block 15 is disposed on the periphery of the supporting step 13, and a guiding inclined plane 16 is disposed at the top of the right-angle positioning block 15, so that the FPC substrate enters a predetermined position along the guiding inclined plane 16 when falling down. The positioning mechanism 3 adopts a non-contact mode to compress the FPC substrate, the surface damage of the FPC substrate in the compressing process is prevented, the design of the top guide inclined plane is wider in fault-tolerant range when the FPC substrate is located, and the continuity of locating operation is improved.

In this embodiment, the Y axis direction linear motion assembly 5 and the X axis direction linear motion assembly 4 all include linear driving element 17, first locating piece 19 and a plurality of first connecting piece 18, first connecting piece 19 with linear driving element 17 expansion end is connected, first connecting piece 18 for the lead screw with 19 screw-thread fit of first locating piece, first locating piece 19 pass through the screw with first linear guide 9 fixed connection, first connecting piece 18 includes shaft coupling 27 and lead screw 28, is equipped with bearing frame 29 on the base, keeps lead screw 28 horizontal position stable. The advantage lies in adopting 4 motor distribution designs like this, realizes straining device XY direction free motion, need not to add extra auxiliary device, simple to operate.

In this embodiment, the sliding seat 7 includes a first sliding block 20, a second sliding block 21 and a connecting block 22, the first sliding block 20 is slidably engaged with the first linear guide 9, the second sliding block 21 is slidably engaged with the second linear guide 11, the connecting block 22 is a "Z" shaped connecting block, the upper portion of the "Z" shaped connecting block 22 is fixedly connected with the second sliding block 21, and the "Z" shaped lower portion is fixedly connected with the positioning mechanism 3 and the first sliding block 21. By adopting the design, the effective connection control of the first linear guide rail, the second linear guide rail and the positioning mechanism is realized, the adjustment of the positioning mechanism is more accurate and effective, and the tensioning degree of the FPC substrate is conveniently controlled.

In this embodiment, the limiting assembly 8 includes two sets of sliding rail assemblies 23 symmetrically arranged along the length direction of the bottom plate, each sliding rail assembly 23 includes a limiting guide rail 24, a limiting sliding block 25 and a limiting connecting piece 26, the limiting sliding block 25 is slidably connected to the limiting guide rail 24, the limiting connecting piece 26 is fixedly connected to the limiting sliding block 25, and the first linear guide rail 9 is disposed above the limiting connecting block 26. The design has the advantages that the overall stability of the device is improved, and the smoothness of the tensioning and positioning process of the FPC substrate is improved.

The working principle of the utility model is as follows:

when the FPC substrate needs to be tensioned and positioned, firstly, the positioning hole in the FPC substrate is matched with the pin 12, the FPC substrate is placed above the supporting step 13, the air pipe 14 is connected below the supporting step 13, the other end of the air pipe 14 is connected with a negative pressure machine, the FPC substrate is adsorbed and tightly attached to the supporting step 13 through air pressure, and the positioning operation is completed. And then controlling the X-axis driving assembly 4 and the Y-axis driving assembly 5 to realize tensioning operation, adjusting the position relation between the second linear guide rail 11 in the X-axis direction and the first linear guide rail 9 in the Y-axis direction, and finishing the tensioning operation, thereby realizing the flattening of the FPC substrate.

While the embodiments of the present invention have been described in terms of practical embodiments, they are not to be construed as limiting the meaning of the present invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.

Claims

1. The utility model provides a tensioning positioner of FPC base plate which characterized in that: comprises a bottom plate (1), a tensioning mechanism (2) and a plurality of positioning mechanisms (3), the tensioning mechanism (2) comprises two groups of X-axis driving structures (4) which are symmetrically arranged along the length direction of the bottom plate and two groups of Y-axis driving structures (5) which are symmetrically arranged along the width direction of the bottom plate, the Y-axis driving structure (5) comprises an X-axis direction linear motion assembly (6), a sliding seat (7), a limiting assembly (8) and a first linear guide rail (9), at least two sliding seats (7) are arranged on the first linear guide rail (9), the sliding seat (7) is in sliding fit with the first linear guide rail (9), the sliding seat (7) is provided with at least one positioning mechanism (3), the X-axis driving structure (4) comprises a Y-axis direction linear motion assembly (10) and second linear guide rails (11) which are in sliding fit with the sliding seats (7) on the same side of the two groups of Y-axis driving structures (5) at the same time.

2. The FPC substrate tensioning and positioning device of claim 1, wherein: positioning mechanism (3) are including round pin post (12), supporting step (13) and trachea (14), a plurality of through-holes have been seted up in supporting step (13), round pin post (12) are located on supporting step (13), a plurality of through-holes all pass through trachea (14) and outside vacuum generator intercommunication.

3. The FPC substrate tensioning and positioning device of claim 1, wherein: y axle direction linear motion subassembly (10) with X axle direction linear motion subassembly (6) all include linear drive component (17), first locating piece (19) and a plurality of first connecting piece (18), first connecting piece (18) with linear drive component (17) expansion end is connected, first connecting piece (18) with first locating piece (19) screw-thread fit, first locating piece (19) through the retaining member with first linear guide (9) fixed connection.

4. The FPC substrate tensioning and positioning device of claim 1, wherein: the sliding seat (7) comprises a first sliding block (20), a second sliding block (21) and a connecting block (22), the first sliding block (20) is in sliding fit with the first linear guide rail (9), the second sliding block (21) is in sliding fit with the second linear guide rail (11), and the first sliding block (20) and the second sliding block (21) are fixedly connected with the connecting block (22).

5. The FPC substrate tensioning and positioning device of claim 4, wherein: spacing subassembly (8) include two sets of slide rail set spare (23) that set up along bottom plate length direction symmetry, slide rail set spare (23) include spacing guide rail (24), spacing slider (25) and spacing connecting piece (26), spacing slider (25) sliding connection in spacing guide rail (24), spacing connecting piece (26) with spacing slider (25) fixed connection, first linear guide (9) set up in connecting block (22) top.