CN216082284U

CN216082284U - FPC bending positioning jig and bending testing machine

Info

Publication number: CN216082284U
Application number: CN202121748075.XU
Authority: CN
Inventors: 何宏
Original assignee: Sunwin Hubei Optoelectronic Technology Co Ltd
Current assignee: Sunwin Hubei Optoelectronic Technology Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-18
Anticipated expiration: 2031-07-29

Abstract

The utility model belongs to the technical field of flexible printed circuit board bending, and particularly provides a FPC bending positioning jig, which comprises: the device comprises a base, a positioning clamp and a positioning clamp, wherein a rack and the positioning clamp are arranged on the base; a guide rail is arranged between the rack and the positioning chuck; the guide rail is connected with a sliding chuck in a sliding way; a clamping groove for accommodating a to-be-positioned part is formed between the sliding chuck and the positioning chuck; the rack is provided with a driving device for driving the sliding chuck to move on the guide rail; bending sheets are detachably arranged at the top of the sliding chuck and/or the positioning chuck; the bending piece extends out of the top of the sliding chuck and/or the positioning chuck towards the direction of the clamping groove to form a bending supporting surface. The FPC bending positioning jig provided by the utility model can be used for carrying out bending tests of finished product modules FPC at different angles, different positions and different bending radiuses, has high efficiency, accurate bending angle and small difference of test results of different batches, and can replace manual operation.

Description

FPC bending positioning jig and bending testing machine

Technical Field

The utility model belongs to the technical field of flexible printed circuit board bending, and particularly relates to an FPC bending positioning jig and a bending tester.

Background

The rapid development of the mobile phone industry directly pushes the development of a mobile phone camera module, the requirement on the reliability of the camera module is continuously improved, the camera module with high pixel and small volume is obtained, the camera module is sealed on an FPC (flexible printed circuit) soft board, and the camera module is integrated into an inner cavity of a mobile phone after the FPC soft board is bent, so that the volume occupied by the camera module is greatly reduced. The bending reliability of the FPC directly affects the quality of the whole camera module, so that the bending reliability test of the FPC is needed in the production process of the camera module. At present, bending tests are mainly carried out on the FPC by means of manual bending, the manual bending method is low in efficiency, the bending angle is not accurate, the difference of different bending methods of different operators is large, and the difference of test results of different operators is large. The existing equipment on the market can only bend the single FPC, and the bending test of the FPC of the finished product module cannot be carried out.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the existing equipment can only bend a single FPC and cannot perform FPC bending test of a finished product module.

Therefore, the utility model provides an FPC bending and positioning jig, which comprises: the device comprises a base, a positioning clamp and a positioning clamp, wherein a rack and the positioning clamp are arranged on the base; a guide rail is arranged between the rack and the positioning chuck; the guide rail is connected with a sliding chuck in a sliding way; a clamping groove for accommodating a to-be-positioned part is formed between the sliding chuck and the positioning chuck; the rack is provided with a driving device for driving the sliding chuck to move on the guide rail; bending sheets are detachably arranged at the top of the sliding chuck and/or the positioning chuck; the bending piece extends out of the top of the sliding chuck and/or the positioning chuck towards the direction of the clamping groove to form a bending supporting surface.

Specifically, the upper ends of the opposite surfaces of the clamping grooves are provided with clamping buffer layers.

Specifically, the bending supporting end of the bending piece contacting with the to-be-positioned piece is arc-shaped.

Specifically, a drill hole I is formed in the top of the positioning chuck and/or the top of the sliding chuck; the bending piece is provided with a fixing hole I matched with the drilling hole I; the bending piece is detachably arranged at the top of the positioning chuck and/or the sliding chuck through a fixing hole I and a drilling hole I.

Specifically, the middle of the bending piece is provided with an opening.

Specifically, the top ends of the opposite surfaces of the clamping grooves are provided with drill holes II; the bent piece is provided with a fixing hole II matched with the drilling hole II; the opposite surfaces of the clamping grooves are detachably provided with the bending sheets through respective drilling holes II; the two bending pieces are symmetrically arranged.

Specifically, the fixing hole I and the fixing hole II are waist-shaped holes.

Specifically, the bending piece is a brass bending piece.

Specifically, the driving device is an adjusting screw rod; the frame is provided with a threaded hole matched with the adjusting screw rod; and one end of the adjusting screw rod is provided with a nut, and the other end of the adjusting screw rod penetrates through the threaded hole to be connected with the sliding chuck.

The utility model also provides an FPC bending testing machine, which comprises a shifting block and any one of the FPC bending positioning jigs; the shifting head is movably arranged above the FPC bending and positioning jig.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the FPC bending positioning jig provided by the utility model can be used for bending tests of finished product modules FPC at different angles, different positions and different bending radiuses, has high efficiency, accurate bending angle and small difference of bending test results of different batches, can replace manual operation, and fills the blank of a market camera module FPC bending testing machine.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of an FPC bending positioning jig of the present invention.

Fig. 2 is a schematic plan view of a bending sheet of the FPC bending positioning jig of the present invention.

Fig. 3 is a left side view of the bending sheet of the FPC bending positioning jig of the present invention.

FIG. 4 is a schematic view of a clamping manner of the FPC bending and positioning fixture for bending and positioning the FPC at the head part;

fig. 5 is a schematic view illustrating that the FPC at the head portion is bent by +90 ° using the FPC bending jig of the present invention.

FIG. 6 is a schematic view of bending the FPC at-90 degree on the head portion by using the FPC bending jig of the present invention.

Fig. 7 is a schematic view of a clamping manner of the FPC bending positioning jig of the present invention when bending and positioning the middle of the FPC.

Fig. 8 is a schematic view of bending the middle of the FPC by +90 ° using the FPC bending jig of the present invention.

FIG. 9 is a schematic view of bending the middle of the FPC at-90 degree by using the FPC bending jig of the present invention.

Fig. 10 is a schematic view of a clamping manner of the FPC bending positioning fixture of the present invention when bending and positioning the BTB end of the FPC.

Fig. 11 is a schematic view of bending the BTB end of the FPC by +90 ° using the FPC bending jig of the present invention.

FIG. 12 is a schematic view of bending the BTB end of the FP at-90 degree by the FPC bending jig of the present invention.

Description of reference numerals: 1. a base; 2. positioning the chuck; 3. a sliding chuck; 4. a guide rail; 5. a frame; 6. adjusting the screw rod; 7. a nut; 8. bending the sheet; 9. bending the supporting end; 10. opening a hole; 11. a fixing hole I; 12. a camera; 13. FPC; 14. clamping the buffer layer; 15. a shifting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1-2, the present invention provides a FPC bending positioning jig, including: the device comprises a base 1, wherein a positioning chuck 2 and a rack 5 are arranged on the base 1; a guide rail 4 is arranged between the frame 5 and the positioning chuck 2; the guide rail 4 is connected with a sliding chuck 3 in a sliding way; a clamping groove for clamping a to-be-positioned part is formed between the sliding chuck 3 and the positioning chuck 2; the rack 5 is provided with a driving device for driving the sliding chuck 3 to move on the guide rail 4; bending sheets 8 are detachably arranged at the top of the sliding chuck 3 and/or the positioning chuck 2; the bending piece 8 extends out of the top of the sliding chuck 3 and/or the positioning chuck 2 towards the direction of the clamping groove to form a bending supporting surface. Due to the arrangement of the bending supporting surface, a clamping groove space is always reserved between the sliding chuck 3 and the positioning chuck 2, and the camera 12 cannot be extruded.

When the FPC bending positioning jig is only used for installing the bending piece 8 on the sliding chuck 3 or the positioning chuck 2, the FPC bending positioning jig is installed on an FPC bending testing machine, the camera 12 end of the camera module extends into the clamping groove, the lens faces the side face where the clamping groove is connected with the bending piece 8, the driving device is started, the sliding chuck 3 is driven to move towards the direction of the positioning chuck 2 on the guide rail 4 to adjust the size of the clamping groove, one side of the part, to be bent, of the FPC13 of the camera module is tightly attached to one end of the bending supporting face of the bending piece 8, the other side of the part is tightly attached to the positioning chuck 2 or the sliding chuck 3, the camera module is fixed between the sliding chuck 3 and the positioning chuck 2, clamping and positioning of the camera module are achieved, then the shifting head 15 of the FPC bending testing machine is started, the FPC13 is pressed to the bending supporting face of the bending piece 8, and bending testing is completed.

When the bending pieces 8 are mounted on both the sliding chuck 3 and the positioning chuck 2, as shown in fig. 3-6, the bending test can be performed on the head or the middle of the FPC13 of the camera module. The camera 12 end of the camera module is extended into the clamping groove, the part to be bent is close to the edge of the bending sheet 8 positioned at the top of the positioning chuck 2, and the driving device is started to drive the sliding chuck 3 to move towards the positioning chuck 2 on the guide rail 4 so as to adjust the size of the clamping groove. The bending piece edge at the top of the sliding chuck 3 supports the FPC13 of the camera module, the part to be bent of the FPC13 is clamped between the two bending pieces 8, the camera module is clamped and positioned, and then the shifting head 15 of the FPC bending testing machine is started, and due to the fact that the bending supporting surfaces are arranged on the two sides of the FPC13, bending of +/-90 degrees can be carried out on the FPC13 according to actual requirements.

The bending sheet 8 is made of metal, preferably brass, so that the strength of the bending sheet meets the requirement, and the bending sheet is prevented from deforming in the extrusion process and damaging the camera module to be tested.

In order to avoid as much as possible that the camera 12 is squeezed and damaged during the process of the sliding chuck 3 approaching the positioning chuck 2 and when the poking head 15 bends the FPC13, clamping buffer layers 14 are arranged at the upper ends of the opposite surfaces of the clamping grooves. The clamping buffer layer 14 is preferably foam, and a protective film may be attached to the camera 12 during the bending test.

When the bending part is at a right angle of 90 degrees, the FPC13 may be broken, so that the bending supporting end 9 of the bending piece 8, which is in contact with the part to be bent of the FPC13, is designed to be arc-shaped, and a bending radian with a certain radius is formed at the bending part of the FPC13 during use, so that the strength of the bent FPC13 is improved. According to the requirement of buckling of the current commonly used mobile phone camera module, the radius R of the arc-shaped end of the buckling supporting end 9 can be set to be 0.36mm, 0.5mm, 0.8mm or 1.0mm for standby.

Specifically, the top of the positioning chuck 2 and/or the sliding chuck 3 is provided with a drill hole I; the bending sheet 8 is provided with a fixing hole I11 matched with the drilling hole I; the bending piece 8 is detachably mounted on the top of the positioning chuck 2 and/or the sliding chuck 3 through the fixing hole I11 and the drilling hole I. The bending tabs 8 are preferably removably mounted on the positioning collet 2 and/or the sliding collet 3 using screws.

Furthermore, the middle of the bending piece 8 is provided with the opening 10, when clamping and positioning are carried out, the part to be bent of the camera module is close to the corresponding part of the edge of the bending supporting surface and the opening 10, and the phenomenon that the FPC13 is damaged due to the interference of the shifting head 15 and the bending piece 8 in the bending process is avoided. At the moment, in order to realize the bending test of the BTB end of the camera module FPC13, drilling holes II can be arranged at the top ends opposite to the clamping grooves; the bending sheet 8 is provided with a fixing hole II matched with the drilling hole II; the opposite surfaces of the clamping grooves are detachably provided with the bending sheets 8 through respective drilling holes II; the two bending pieces 8 are symmetrically arranged. As shown in fig. 7-8, after the bending pieces 8 are fixed on the opposite surfaces of the clamping grooves, the portion of the camera module to be bent is close to the upper edge of the bending piece 8 on one side of the positioning chuck 2, and at this time, the camera 12 extends between the two bending pieces 8 and faces the opening 10 without contacting other components. The sliding chuck 3 is driven to move towards the positioning chuck 2 on the guide rail 4, the part to be bent of the FPC13 is clamped between the two bending pieces, and the camera module is clamped and positioned. The fixing hole II can coincide with the fixing hole I11 to improve the applicable flexibility of the bending sheet 8.

Furthermore, the fixing holes I11 and the fixing holes II are designed to be kidney-shaped holes, and the relative distances between the fixing holes I11 and the drill holes I and between the fixing holes II and the drill holes II are adjusted according to actual conditions so as to change the size of the space in the clamping groove when positioning is completed, so that the FPC bending and positioning jig provided by the utility model can be flexibly applied to camera modules with cameras 12 of different sizes.

In a refined embodiment, the drive means is an adjusting screw 6; a threaded hole matched with the adjusting screw 6 is formed in the frame 5; and one end of the adjusting screw rod 6 is provided with a nut 7, the other end of the adjusting screw rod penetrates through the threaded hole to be connected with the sliding chuck 3, and when the adjusting screw rod is used, the nut 7 is screwed to push the sliding chuck 3 to move towards the positioning chuck 2.

In conclusion, the FPC bending positioning fixture provided by the utility model can be used for bending tests of finished product modules of FPCs at different angles, different positions and different bending radiuses, is high in efficiency, accurate in bending angle and small in difference of bending test results of different batches, can replace manual operation, and fills the blank of FPC bending testing machines of camera modules in the market.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the utility model, which is intended to be covered by the claims and any design similar or equivalent to the scope of the utility model.

Claims

1. The utility model provides a FPC positioning jig that buckles which characterized in that includes: the device comprises a base (1), wherein a positioning chuck (2) and a rack (5) are arranged on the base (1); a guide rail (4) is arranged between the rack (5) and the positioning chuck (2); the guide rail (4) is connected with a sliding chuck (3) in a sliding way; a clamping groove for clamping a to-be-positioned part is formed between the sliding chuck (3) and the positioning chuck (2); the rack (5) is provided with a driving device for driving the sliding chuck (3) to move on the guide rail (4); bending sheets (8) are detachably arranged at the top of the sliding chuck (3) and/or the positioning chuck (2); the bending piece (8) extends out of the top of the sliding chuck (3) and/or the top of the positioning chuck (2) towards the clamping groove direction to form a bending supporting surface.

2. The FPC bending and positioning jig according to claim 1, wherein: the upper ends of the opposite surfaces of the clamping grooves are provided with clamping buffer layers (14).

3. The FPC bending and positioning jig according to claim 1, wherein: the bending supporting end (9) of the bending sheet (8) contacting with the part to be positioned is arc-shaped.

4. The FPC bending and positioning jig according to claim 1, wherein: a drill hole I is formed in the top of the positioning chuck (2) and/or the top of the sliding chuck (3); the bending piece (8) is provided with a fixing hole I (11) matched with the drilling hole I; the bending piece (8) is detachably mounted at the top of the positioning chuck (2) and/or the sliding chuck (3) through a fixing hole I (11) and a drilling hole I.

5. The FPC bending and positioning jig according to claim 4, wherein: the middle of the bending sheet (8) is provided with an opening (10).

6. The FPC bending and positioning jig according to claim 5, wherein: drilling holes II are formed in the top ends of the opposite surfaces of the clamping grooves; the bending sheet (8) is provided with a fixing hole II matched with the drilling hole II; the opposite surfaces of the clamping grooves are detachably provided with the bending sheets (8) through respective drilling holes II; the two bending sheets (8) are symmetrically arranged.

7. The FPC bending and positioning jig according to claim 6, wherein: the fixing hole I (11) and the fixing hole II are waist-shaped holes.

8. The FPC bending and positioning jig according to claim 1, wherein: the bending sheet (8) is a brass bending sheet.

9. The FPC bending and positioning jig according to claim 1, wherein: the driving device is an adjusting screw rod (6); the rack (5) is provided with a threaded hole matched with the adjusting screw rod (6); and one end of the adjusting screw rod (6) is provided with a nut (7), and the other end of the adjusting screw rod penetrates through the threaded hole to be connected with the sliding chuck (3).

10. The utility model provides a FPC testing machine that buckles which characterized in that: the FPC bending tester comprises a shifting block (15) and the FPC bending positioning jig as claimed in any one of claims 1-9; the shifting head (15) is movably arranged above the FPC bending and positioning jig.