Ultra-long board expansion and contraction control jig

Abstract

This utility model discloses an ultra-long board expansion and contraction control fixture, relating to the technical field of flexible circuit board manufacturing. The fixture includes a substrate and a pressure plate. A first groove is formed on the substrate, comprising processing areas on both sides and a transition area in the middle. Several positioning probes are disposed in the processing areas, and a first expansion and contraction accommodating slot is formed in the transition area. The pressure plate is movably placed within the first groove and engages with the positioning probes. A second expansion and contraction accommodating slot is formed on the pressure plate, and the first and second slots communicate with each other. This ultra-long board expansion and contraction control fixture is applicable to flexible circuit boards of various lengths and can adapt to their expansion and contraction, reducing usage costs.

Description

Technical Field

[0001] This utility model relates to the technical field of flexible circuit board manufacturing, and in particular to a jig for controlling the expansion and contraction of an ultra-long board. Background Technology

[0002] In the manufacturing process of flexible printed circuit boards (FPCs), due to the influence of material properties and process conditions, FPCs are prone to dimensional expansion and contraction during processing, leading to positioning difficulties. Existing technologies often employ positioning pins mounted on the fixture body for positioning. This typically requires custom-made fixtures at a 1:1 scale based on the actual expansion and contraction of the FPC, or the fabrication of matching bases for use with the fixture. However, both methods place high demands on the expansion and contraction stability of the FPC. If the expansion and contraction amplitude is unstable or exceeds the expected range, the existing fixtures become difficult to adapt. Furthermore, when dealing with FPCs of different sizes, the fixture dimensions are difficult to universally adapt, resulting in poor fixture versatility and high costs associated with repeated manufacturing. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an ultra-long board expansion and contraction control fixture, which can be applied to flexible circuit boards of various sizes and lengths and adapt to their expansion and contraction, thereby reducing the cost of use.

[0004] According to a first aspect of the present invention, an ultra-long plate expansion and contraction control fixture includes: A substrate, wherein a first groove is formed on the substrate, the first groove includes processing areas on both sides and a transition area in the middle, a plurality of positioning probes are provided in the processing areas, and a first expansion and contraction receiving groove is formed in the transition area. A pressure plate is movably placed in the first groove. The pressure plate is fitted with the plurality of positioning probes. A second expansion and contraction receiving groove is provided on the pressure plate. The first expansion and contraction receiving groove communicates with the second expansion and contraction receiving groove.

[0005] According to some embodiments of the present invention, a plurality of heat dissipation through holes are provided in the first groove.

[0006] According to some embodiments of the present invention, the pressure plate is provided with a plurality of heat dissipation grooves, which communicate with the heat dissipation holes.

[0007] According to some embodiments of the present invention, the substrate is provided with a reference point, the reference point is close to the first groove, and the reference point is located at the edge of the substrate.

[0008] According to some embodiments of the present invention, it further includes a plurality of magnetic attraction elements, which are uniformly embedded in the bottom surface of the substrate.

[0009] According to some embodiments of the present invention, the pressure plate is provided with at least one first through groove, which is located in the processing area.

[0010] According to some embodiments of the present invention, there are two first through slots, with the two first through slots located on both sides of the processing area, and the second expansion and contraction accommodating through slot located between the two first through slots.

[0011] According to some embodiments of the present invention, the pressure plate is provided with a plurality of second through slots, and the positioning probe is adapted to be inserted into the second through slots.

[0012] According to some embodiments of the present invention, the first groove is suitable for placing a workpiece, the two ends of the workpiece are suitable for placing in the processing area, the middle part of the workpiece is located in the transition area, the plurality of positioning probes pass through the workpiece, the workpiece is located between the first groove and the pressure plate, and the first expansion and contraction receiving groove and the second expansion and contraction receiving groove can expose part of the workpiece.

[0013] According to some embodiments of the present invention, the workpiece is adapted to fall within the first expansion and contraction receiving groove.

[0014] The embodiments of this utility model have at least the following beneficial effects: By precisely fixing the welding area of ​​the flexible circuit board within the processing zone using positioning probes, the dimensional expansion and contraction of the flexible circuit board in this area during processing is effectively suppressed, ensuring welding quality and precision. Simultaneously, the coordinated design of the first and second expansion and contraction accommodating slots provides space to accommodate and avoid protrusions in non-welding areas caused by expansion and contraction of the flexible circuit board. Furthermore, when the size of the flexible circuit board exceeds the size of the fixture, the excess portion of the flexible circuit board can be placed within the first expansion and contraction accommodating slot. This design allows the fixture to actively adapt to different expansion and contraction amplitudes and different sizes of the flexible circuit board, solving the problems of poor fixture versatility and high repetitive manufacturing costs caused by unstable expansion and contraction in existing technologies. This achieves high adaptability, high protection, and low operating costs.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the exploded views of the assembly structure of the ultra-long plate expansion and contraction control fixture according to an embodiment of the present utility model; Figure 2This is a top view of the substrate of the ultra-long plate expansion and contraction control fixture according to an embodiment of the present utility model; Figure 3 This is a top view of the pressure plate of the ultra-long plate expansion and contraction control fixture according to an embodiment of the present utility model; Figure 4 This is the second exploded view of the assembly structure of the ultra-long plate expansion and contraction control fixture according to an embodiment of this utility model.

[0017] Figure label: Substrate 100, first groove 110, processing area 111, transition area 112, heat dissipation through hole 113, positioning probe 120, first expansion and contraction receiving groove 130, reference point 140. Pressure plate 200, second expansion and contraction receiving slot 210, heat dissipation slot 220, first slot 230, second slot 240 Magnetic attraction element 300. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "vertical," "horizontal," "bottom," and "inner," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "several" means two or more.

[0020] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installing", "connecting", "linking", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0021] The following is as follows Figures 1 to 4 This invention describes an ultra-long plate expansion and contraction control fixture according to an embodiment of the present invention.

[0022] like Figure 1As shown, the ultra-long plate expansion and contraction control fixture according to an embodiment of the present invention includes a base plate 100 and a pressure plate 200. A first groove 110 is formed on the base plate 100. The first groove 110 includes processing areas 111 on both sides and a transition area 112 in the middle. A plurality of positioning probes 120 are provided in the processing areas 111. A first expansion and contraction receiving groove 130 is formed in the transition area 112. The pressure plate 200 is movably placed in the first groove 110. The pressure plate 200 is fitted with the plurality of positioning probes 120. A second expansion and contraction receiving groove 210 is formed on the pressure plate 200. The first expansion and contraction receiving groove 130 communicates with the second expansion and contraction receiving groove 210.

[0023] Understandably, the pressure plate 200 is designed to work in conjunction with several positioning probes 120 to provide a secure clamping grip on the portion of the workpiece located in the processing area, preventing the workpiece from moving.

[0024] When using this fixture, the workpiece to be processed is first placed in the first groove 110 of the base plate 100, and then fixed by a plurality of positioning probes 120 provided in the processing area 111. If the workpiece is in the first horizontal direction (i.e. Figure 2 The length in the left-right direction shown is greater than the length of the first groove 110 along the first horizontal direction (i.e., Figure 2 If the length of the workpiece (in the left-right direction as shown) is determined, the excess portion of the workpiece will be accommodated in the first expansion and contraction receiving groove 130 provided in the transition zone 112. Subsequently, the pressure plate 200 is installed in the first groove 110 to accommodate the installation requirements of workpieces of different lengths.

[0025] In addition, the positioning probe 120 in the processing area 111 can effectively suppress the dimensional expansion and contraction of the workpiece in the area; while in the transition area 112, the deformation of the workpiece caused by expansion and contraction can be accommodated by the first expansion and contraction accommodating groove 130, ensuring that the processing process in the processing area is not affected.

[0026] It is understandable that after the workpiece to be processed is placed in the first groove 110 and the pressure plate 200 is placed on top, the workpiece to be processed may be in a wavy state at the first expansion and contraction receiving channel 130 due to the characteristics of its material. The second expansion and contraction receiving channel 210 can accommodate the upward bending of the workpiece to be processed, and the pressure plate 200 can be placed into the first groove 110 by grasping the second expansion and contraction receiving channel 210.

[0027] It is understandable that the second expansion and contraction receiving channel 210 is in the first horizontal direction (i.e. Figure 2 The length of the first expansion and contraction receiving channel 130 in the left and right directions (as shown) is greater than or equal to the length of the first horizontal direction (i.e., the length of the first expansion and contraction receiving channel 130 in the first horizontal direction). Figure 2 The length of the second expansion and contraction receiving groove 210 in the second horizontal direction (as shown in the left and right directions) and the length of the second expansion and contraction receiving groove 210 in the second horizontal direction (i.e. Figure 2The length of the first expansion and contraction receiving channel 130 (shown in the front-to-back direction) is greater than or equal to the length of the second horizontal direction (i.e., the length of the first expansion and contraction receiving channel 130). Figure 2 The length (in the front-to-back direction as shown).

[0028] In some specific embodiments of this utility model, a plurality of heat dissipation through holes 113 are provided in the first groove 110.

[0029] like Figure 2 As shown, in this embodiment, six heat dissipation through holes 113 are provided. The arrangement of the heat dissipation through holes 113 allows the heat from the contact gap between the workpiece and the first groove 110 to be transferred to the outside more quickly through the heat dissipation through holes 113, thereby reducing the workpiece temperature, avoiding excessive expansion and contraction, and also relieving the thermal stress of the fixture. It can be understood that multiple heat dissipation through holes 113 can be provided without affecting the placement and processing of the workpiece, and can be distributed within the processing area 111 and the transition area 112.

[0030] In some specific embodiments of this utility model, the pressure plate 200 has several heat dissipation grooves 220, which communicate with the heat dissipation holes 113. For example... Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the heat dissipation slots 220 have six slots that correspond to the number of heat dissipation holes 113 and are interconnected. It is understood that, when the opening of the heat dissipation slots 220 can cover the opening of the heat dissipation holes 113, the number of heat dissipation slots 220 can be less than the number of heat dissipation holes 113. For example, referring to… Figure 4 The heat dissipation channel 220 is a long strip-shaped channel structure, and the slot of the heat dissipation channel 220 covers multiple heat dissipation holes.

[0031] In some specific embodiments of this utility model, the substrate 100 is provided with a reference point 140, which is close to the first groove 110 and located at the edge of the substrate 100. For example... Figure 1 As shown, in this embodiment, the reference point 140 is located at the rear left edge of the substrate 100, which avoids the reference point 140 being obscured by the workpiece or the pressure plate 200. The reference point 140 is set to replace the MARK point (alignment mark point or optical positioning point) on the workpiece FPC, and to accurately locate the position and angle of the workpiece. It can be understood that multiple reference points 140 can also be set, for example, at the edges of the four corners of the substrate 100.

[0032] In some specific embodiments of this utility model, a plurality of magnetic attraction elements 300 are also included, which are uniformly embedded on the bottom surface of the substrate 100.

[0033] like Figure 1As shown, in this embodiment, a plurality of magnetic elements 300 are evenly arrayed on the bottom of the substrate 100. When the pressure plate 200 is made of iron, the magnetic elements 300 can further stabilize the workpiece by cooperating with the pressure plate 200 through magnetic force. It is understood that the magnetic elements 300 can be common magnets. It is understood that the substrate 100 can be made of aluminum. Using aluminum as the material for the fixture substrate 100 results in a lighter weight, easier movement, and easier machining. In this case, the pressure plate 200 is made of iron to enhance the clamping cooperation with the magnetic elements 300. It is understood that, to facilitate the manufacture of the fixture, the pressure plate 200 can also be made of aluminum, with corresponding thin iron sheets provided on it to meet the cooperation with the magnetic elements 300.

[0034] In some specific embodiments of this utility model, the pressure plate 200 has at least one first through groove 230, and the first through groove 230 is located in the processing area 111. For example... Figure 1 and Figure 3 As shown, in this embodiment, there are two first through slots 230, which are located on both sides of the processing area 111, and the second expansion and contraction receiving through slot 210 is located between the two first through slots 230. The first through slots 230 are provided to facilitate the installation of the workpiece, so that the protruding part of the workpiece can be placed without affecting the cover pressure of the pressure plate 200.

[0035] In some specific embodiments of this utility model, two first through slots 230 are provided, with the two first through slots 230 located on both sides of the processing area 111, and the second expansion and contraction receiving through slot 210 located between the two first through slots 230. For example... Figure 1 and Figure 3 As shown, in this embodiment, the second through slot 240 facilitates docking with the positioning probe 120, minimizing collisions and wear between the positioning probe 120 and the pressure plate 200 during placement, thus improving the service life of both. It is understood that the number of second through slots 240 is greater than or equal to the number of positioning probes 120, allowing for multiple openings in the pressure plate 200 to accommodate positioning probes 120 positioned at different locations on different workpieces.

[0036] In some specific embodiments of this utility model, the pressure plate 200 is provided with a plurality of second through slots 240, and the positioning probe 120 is adapted to pass through the second through slots 240.

[0037] In some specific embodiments of this utility model, the first groove 110 is suitable for placing the workpiece, the two ends of the workpiece are suitable for placing in the processing area 111, the middle part of the workpiece is located in the transition area 112, a number of positioning probes 120 pass through the workpiece, the workpiece is located between the first groove 110 and the pressure plate 200, and the first expansion and contraction receiving channel 130 and the second expansion and contraction receiving channel 210 can expose part of the workpiece.

[0038] In some specific embodiments of this utility model, the workpiece is adapted to fall within the first expansion and contraction receiving groove 130. It can be understood that the workpiece's second horizontal direction (i.e., Figure 2 The length in the front-to-back direction shown is shorter than the length in the second horizontal direction of the first expansion and contraction receiving channel 130 (i.e., Figure 2 The length in the front-to-back direction (as shown) is used to ensure that the workpiece can be partially located within the first expansion and contraction receiving groove 130.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A jig for controlling the expansion and contraction of an ultra-long plate, characterized in that, include: A substrate (100) has a first groove (110) formed on it. The first groove (110) includes processing areas (111) on both sides and a transition area (112) in the middle. A plurality of positioning probes (120) are provided in the processing area (111), and a first expansion and contraction receiving channel (130) is formed in the transition area (112). A pressure plate (200) is movably placed in the first groove (110). The pressure plate (200) is fitted with the plurality of positioning probes (120). A second expansion and contraction receiving groove (210) is provided on the pressure plate (200). The first expansion and contraction receiving groove (130) communicates with the second expansion and contraction receiving groove (210).

2. The ultra-long plate expansion and contraction control fixture according to claim 1, characterized in that, The first groove (110) has several heat dissipation holes (113).

3. The ultra-long plate expansion and contraction control fixture according to claim 2, characterized in that, The pressure plate (200) has several heat dissipation slots (220), which are connected to the heat dissipation holes (113).

4. The ultra-long plate expansion and contraction control fixture according to claim 1, characterized in that, The substrate (100) is provided with a reference point (140) which is close to the first groove (110) and is located at the edge of the substrate (100).

5. The ultra-long plate expansion and contraction control fixture according to claim 1, characterized in that, It also includes a plurality of magnetic elements (300), which are uniformly embedded on the bottom surface of the substrate (100).

6. The ultra-long plate expansion and contraction control fixture according to claim 1, characterized in that, The pressure plate (200) has at least one first through groove (230) located in the processing area (111).

7. The ultra-long plate expansion and contraction control fixture according to claim 6, characterized in that, There are two first through slots (230), and the two first through slots (230) are respectively located in the processing areas (111) on both sides. The second expansion and contraction receiving through slot (210) is located between the two first through slots (230).

8. The ultra-long plate expansion and contraction control fixture according to claim 1, characterized in that, The pressure plate (200) has a plurality of second through slots (240), and the positioning probe (120) is adapted to be inserted into the second through slots (240).

9. The ultra-long plate expansion and contraction control fixture according to any one of claims 1 to 8, characterized in that, The first groove (110) is suitable for placing a workpiece, the two ends of the workpiece are suitable for placing in the processing area (111), the middle part of the workpiece is located in the transition area (112), the plurality of positioning probes (120) pass through the workpiece, the workpiece is located between the first groove (110) and the pressure plate (200), and the first expansion and contraction receiving channel (130) and the second expansion and contraction receiving channel (210) can expose part of the workpiece.

10. The ultra-long plate expansion and contraction control fixture according to claim 9, characterized in that, The workpiece is adapted to fall within the first expansion and contraction receiving channel (130).

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