CN216310152U - False pressure test fixture of touch-sensitive screen - Google Patents

Abstract

The utility model discloses a false pressure test fixture for a touch screen, which comprises a platform, wherein the platform is provided with a pressing mechanism, a rotating part, a positioning block for placing an FPC (flexible printed circuit), a U-shaped seat for vertically and transversely placing a functional sheet, a supporting block with a limiting plate and a rotary driving part, wherein the driving end of the rotary driving part is fixedly connected with the closed end of the U-shaped seat; a groove for inserting one side of the functional sheet is formed in the inner side of the closed end of the U-shaped seat, a pressing component for pressing the functional sheet into the U-shaped seat is arranged on one side of the open end of the U-shaped seat, a translation driving piece for driving the limiting plate to translate is mounted on the platform, a photoelectric switch is arranged on one side of the limiting plate, and silica gel foam pads are arranged at the limiting plate, the supporting block, the groove, the inner side wall of the U-shaped seat and one end, close to the functional sheet, of the pressing component; the utility model effectively avoids the damage of the functional sheet and the flat cable, meets the requirement of false pressure test on products with different specifications, and has high integral test efficiency.

Description

False pressure test fixture of touch-sensitive screen

Technical Field

The utility model relates to the technical field of touch screen testing, in particular to a false pressure testing jig for a touch screen.

Background

In the production process of the touch screen, false voltage testing is carried out before the FPC is not bound, so that the phenomenon that an electrical defective product flows to the next procedure is prevented; the touch screen with the semi-finished product not bound with the FPC comprises a functional sheet and a flat cable, wherein the functional sheet is connected with one end of the flat cable through ACF conductive adhesive, the other end of the flat cable is connected with a false pressure test of the FPC, the traditional false pressure test is generally carried out in a mode of manually pressing the flat cable and the FPC, the test result deviation is large and the test result is inaccurate due to poor manual force consistency and poor positioning precision, and the semi-finished product touch screen is easy to wear without attention, so that the false pressure test cost is high, the positioning precision is poor and the false pressure test efficiency is low;

in the existing cylinder type false pressure test fixture for carrying out false pressure test on a touch screen, firstly, a functional sheet is manually placed on a fixture platform, then, the other end of a flat cable is accurately aligned with a golden finger of a test FPC, then, a cylinder drives a pressure rod to be pressed down until the other ends of the test FPC and the flat cable are tightly attached together, and finally, a test program analyzes data and judges a test result; however, the test fixture has the following disadvantages: 1. the other end of the flat cable is easily abraded after being subjected to hard pressing by a pressing rod and being contacted with the FPC to be tested for many times in the false pressing process, so that the functional sheet and the flat cable are scrapped, and the testing cost is increased; 2. when the process of positioning the flat cable and the FPC or the test is finished, the functional sheet is difficult to transversely grab by hands due to small thickness of the functional sheet, the positioning and the taking and placing of the functional sheet are not facilitated, and meanwhile, the problems of low false pressure test efficiency and high test cost are caused due to the fact that the functional sheet and the flat cable are easily abraded in the process of taking and preventing; 3. different jigs need to be designed according to the function piece of different specifications, and the tool low-usage causes the problem that test cost is high.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a false pressure test fixture for a touch screen, which effectively solves the problem of high test cost caused by damage of a functional sheet and a flat cable, meets the requirement of false pressure test on products with different specifications, and has the advantages of low test cost, high test efficiency and wide application range.

In order to achieve the purpose, the utility model provides the following technical scheme:

a false pressure test fixture for a touch screen comprises a platform, wherein the platform is provided with a pressing mechanism, a rotating member, a positioning block for placing an FPC (flexible printed circuit), a U-shaped seat for vertically placing a function piece, a supporting block for horizontally placing the function piece and a rotating driving member for driving the U-shaped seat to rotate by 90 degrees, the pressing mechanism is arranged above the joint of the positioning block and the supporting block, the closed end of the U-shaped seat is fixedly connected with the driving end of the rotating driving member, and the closed end of the U-shaped seat is connected with the platform through the rotating member; the utility model discloses a portable electronic device, including U type seat, limiting plate, supporting shoe, recess, platform, limiting plate, the closed end inboard of U type seat is seted up the recess that supplies function piece one side to peg graft, open end one side of U type seat be provided with press the function piece in the subassembly that compresses tightly in the U type seat, the supporting shoe is provided with the limiting plate that is used for injecing the function piece opposite side, the platform is installed the drive the translation driving piece of limiting plate translation, limiting plate one side is provided with the photoelectric switch who detects the function piece opposite side, the inside wall of limiting plate, supporting shoe, recess, U type seat and the one end that the subassembly that compresses tightly is close to the function piece all is provided with the cotton pad of silica gel bubble.

Further setting: compress tightly the subassembly and include screw rod and first clamp plate, the confession has been seted up to open end one side of U type seat screw rod threaded connection's screw hole, first clamp plate is located the open end of U type seat is inboard, screw rod one end is provided with rotatory handle, the screw rod other end passes the screw hole and with first clamp plate one side is connected, the cotton pad of silica gel bubble connect in the opposite side of first clamp plate, the confession has been seted up to the open end inner wall of U type seat the groove of stepping down that first clamp plate was placed, the tank bottom in groove of stepping down with the screw hole communicates with each other.

Further setting: pressing mechanism includes support, lift driving piece, fixed plate, guide arm, spring and is used for the second clamp plate that is in the same place the winding displacement of function piece with FPC pressfitting, the support mounting in on the platform, the lift driving piece with leg joint, the drive end of lift driving piece with the second clamp plate passes through the fixed plate is connected, the guide arm bottom with the platform is connected, the confession has been seted up to the fixed plate the guiding hole that the guide arm upper end passed, the spring housing is in the outer peripheral face of guide arm, the spring is located the fixed plate with between the platform, the bottom of second clamp plate is provided with the protection cushion.

Further setting: the utility model discloses a support piece, including support piece, locating piece, slider, platform, U type seat, locating piece, slider, support piece, the slider is installed with the bottom of rotating the piece, the spout that supplies the slider slides is seted up to the platform, the U type seat is close to the one end of support can be dismantled and be connected with the locating lever that is the setting of L type, but the vertical end of locating lever sets up for extending structure, the horizontal end and the winding displacement one side contact of function piece of locating lever, the locating piece is seted up the confession the location of placing of locating lever leads to the groove, the slider with be provided with the retaining member between the platform.

Further setting: the platform is provided with infrared sensor, infrared sensor electric signal connection has external controller, the platform is provided with the drive the slider is followed the first translation cylinder that spout length direction slided, external controller's output with first translation cylinder electric signal connection.

Further setting; the rotary driving piece is a rotary cylinder, an ejector rod of the rotary cylinder is detachably and fixedly connected with the closed end of the U-shaped seat, the translation driving piece is a second translation cylinder, the ejector rod of the second translation cylinder is detachably and fixedly connected with the limiting plate, and the rotary cylinder and the second translation cylinder are respectively installed on two opposite sides of the supporting block.

In conclusion, the positioning block, the U-shaped seat, the pressing assembly and the groove are used for positioning the FPC and positioning and fixing a part of the functional sheet twice; the other part of the functional sheet is initially positioned and fixed and the flat cable and the FPC are automatically aligned by rotating the driving piece, the rotating piece and the supporting block; through the photoelectric switch, the limiting plate and the translational driving piece, the functional sheets with different sizes are positioned, the high test cost caused by low utilization rate of the jig and the influence on the overall test efficiency caused by the shaking of the functional sheets are avoided, and the effects of enlarging the application range of the jig, secondarily fixing the other part of the functional sheets and improving the overall efficiency are achieved; the pressing mechanism is used for automatically performing false pressure test on the flat cable and the FPC; through the silica gel foam pad, the test cost increase caused by abrasion of the functional sheet and the flat cable in the taking and placing process is avoided, and the functions of protecting the functional sheet and reducing the test cost are realized; the utility model has high automation degree in the whole process, adopts the turnover structure and the silica gel foam pad, is convenient for positioning and taking and placing the functional sheet, effectively avoids the problem of high test cost caused by damage of the functional sheet and the flat cable, meets the requirement of false pressure test of products with different specifications, and has the advantages of low test cost, high test efficiency and wide application range.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a U-shaped seat in a horizontal position according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a partial cross-sectional view of an embodiment of the present invention;

fig. 5 is a partial enlarged view of B in fig. 4.

In the figure: 1. a platform; 2. a pressing mechanism; 3. a rotating member; 4. positioning blocks; 5. a U-shaped seat; 6. a support block; 7. a rotary drive member; 8. a groove; 9. a compression assembly; 10. a limiting plate; 11. a translation drive; 12. a photoelectric switch; 13. a silica gel foam pad; 14. a screw; 15. A first platen; 16. a threaded hole; 17. rotating the handle; 18. a yielding groove; 19. a support; 20. A lifting drive member; 21. a fixing plate; 22. a guide bar; 23. a spring; 24. a second platen; 25. A guide hole; 26. a protective cushion; 27. a slider; 28. a chute; 29. positioning a rod; 30. positioning the through groove; 31. a locking member; 32. an infrared sensor; 33. a first translation cylinder.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments. It should be noted that the terms "upper" and "lower" used in the following description refer to directions in fig. 1 and 3, and the terms "bottom end" and "top end" refer to directions toward the geometric center of a particular component in fig. 1.

The most key concept of the utility model is as follows: the positioning function of the FPC is realized through the positioning block 4; compared with the traditional method that the functional sheet is directly and transversely placed on the platform 1, the method that the functional sheet is vertically placed is more convenient to grab by virtue of the U-shaped seat 5 and the groove 8, and the effects of primarily positioning one part of the functional sheet and improving the overall testing efficiency are realized; the function of carrying out secondary positioning and fixing on one part of the functional sheet is realized through the pressing component 9; the functions of automatically aligning the flat cable and the FPC and preliminarily positioning and fixing the other part of the functional sheet are realized by rotating the driving piece 7, the rotating piece 3 and the supporting block 6; through the photoelectric switch 12, the limiting plate 10 and the translational driving piece 11, different jigs are not required to be additionally designed, the positioning of the functional pieces with different sizes can be met, the high testing cost caused by the low utilization rate of the jigs is avoided, meanwhile, the influence on the overall testing efficiency caused by the positioning offset of the FPC and the flat cable due to the shaking of the functional pieces is avoided, and the effects of enlarging the application range of the jigs, secondarily fixing the other part of the functional pieces and improving the overall efficiency are realized; through the pressing mechanism 2 and the rotary driving piece 7, the flat cable and the FPC are pressed and compressed by the pressing mechanism 2, so that the effects of automatically performing false pressure test on the flat cable and the FPC, further protecting a functional sheet and improving the test efficiency are realized;

in addition, the functional sheet and the flat cable are prevented from being worn in the taking and placing process through the silica gel foam pad 13, so that the functional sheet and the flat cable are scrapped, the testing cost is increased, and the functions of protecting the functional sheet and reducing the testing cost are realized; the full-automatic test device has high automation degree, adopts the turnover structure and the silica gel foam pad 13, is convenient for positioning and taking and placing the functional sheet, effectively avoids the problem of high test cost caused by damage of the functional sheet and the flat cable, meets the requirement of false pressure test of products with different specifications, and has the advantages of low test cost, high test efficiency and wide application range.

Referring to fig. 1 to 5, a false pressure test fixture for a touch screen includes a platform 1, the platform 1 is provided with a press-fit mechanism 2, a rotating member 3, a positioning block 4 for placing an FPC, a U-shaped seat 5 for vertically placing a function piece, a supporting block 6 for horizontally placing the function piece, and a rotating driving member 7 for driving the U-shaped seat 5 to rotate 90 degrees, the press-fit mechanism 2 is arranged above a joint of the positioning block 4 and the supporting block 6, a closed end of the U-shaped seat 5 is fixedly connected with a driving end of the rotating driving member 7, and the closed end of the U-shaped seat 5 is connected with the platform 1 through the rotating member 3; the recess 8 that supplies function piece one side to peg graft is seted up to the closed end inboard of U type seat 5, open end one side of U type seat 5 is provided with the subassembly 9 that compresses tightly of pressing the function piece in U type seat 5, supporting shoe 6 is provided with the limiting plate 10 that is used for injecing the function piece opposite side, platform 1 installs the translation driving piece 11 of drive limiting plate 10 translation, limiting plate 10 one side is provided with the photoelectric switch 12 that detects the function piece opposite side, limiting plate 10, supporting shoe 6, recess 8, the inside wall of U type seat 5 and the one end that compresses tightly subassembly 9 and be close to the function piece all are provided with the cotton pad 13 of silica gel bubble.

From the above description, when the false pressure test needs to be performed on the touch screen not bound with the FPC, firstly, the positioning block 4 is used for positioning and placing the tested FPC, so that the phenomenon that the Flexible Printed Circuit (FPC) shakes in the false pressure test process to cause the displacement of the flat cable of the touch screen and the FPC to affect the subsequent test efficiency is avoided, and the effect of positioning the FPC is achieved; then, through the U-shaped seat 5 and the groove 8, a part of the function sheet is vertically placed between the opening ends of the U-shaped seat 5, one side of the function sheet is inserted into the groove 8, compared with the traditional mode that the function sheet is directly and transversely placed on the platform 1, the mode that the function sheet is vertically placed is more convenient to grab, and the function of improving the overall testing efficiency while the part of the function sheet is primarily positioned is realized; then, the functional sheet positioned in the opening end of the U-shaped seat 5 is pressed on the inner wall of the other side of the opening end of the U-shaped seat 5 through the pressing component 9, so that the function of secondarily positioning and fixing one part of the functional sheet is realized;

then, the rotary driving piece 7 is started through the rotary driving piece 7, the rotary piece 3 and the supporting block 6, because the closed end of the U-shaped seat 5 is connected with the platform 1 through the rotary piece 3, the rotary driving piece 7 drives the U-shaped seat 5 and the functional sheet to rotate together in the direction of the supporting block 6 by 90 degrees, at the moment, the other part of the functional sheet is transversely placed on the supporting block 6, the flat cable is in contraposition contact with the FPC, and the effects of automatically contraposition the flat cable and the FPC and preliminary positioning and fixing the other part of the functional sheet are realized; then, through the photoelectric switch 12, the limiting plate 10 and the translation driving part 11, false pressure test is performed on the functional sheets with different sizes, the translation driving part 11 is started, the translation driving part 11 drives the limiting plate 10 to move towards the other side of the functional sheet until the photoelectric switch 12 detects the other side of the functional sheet, the translation driving part 11 drives the limiting plate 10 to abut against the other side of the functional sheet and then stops, different jigs do not need to be additionally designed, high test cost caused by low jig utilization rate is avoided, and the effects of increasing the application range of the jig and reducing the test cost are achieved; meanwhile, the influence on the overall testing efficiency caused by the positioning offset of the FPC and the flat cable due to the shaking of the functional sheet in the process of positioning the flat cable and the FPC is avoided, and the effects of secondarily fixing the other part of the functional sheet and improving the overall efficiency are realized; finally, the pressing mechanism 2 is started through the pressing mechanism 2, the pressing mechanism 2 is pressed downwards until the flat cable and the FPC are pressed and tightly pressed, after the pseudo-pressing test of the flat cable and the FPC is finished, the pressing mechanism 2 and the translation driving piece 11 are reset, the rotation driving piece 7 drives the U-shaped seat 5 and the tested functional piece to be turned over again to be in a vertical state, and the tested functional piece is taken out, so that the effects of automatically performing the pseudo-pressing test on the flat cable and the FPC, further protecting the functional piece and improving the test efficiency are realized;

in addition, as the limiting plate 10, the supporting block 6, the groove 8, the inner side wall of the U-shaped seat 5 and one end of the pressing component 9 close to the functional sheet are all provided with the silica gel foam cotton pad 13, the functional sheet and the flat cable are prevented from being worn in the process of taking and placing, so that the functional sheet and the flat cable are scrapped, the test cost is increased, and the functions of protecting the functional sheet and reducing the test cost are realized; the utility model automatically positions and fixes the functional sheet in the whole process, effectively avoids the problem of high test cost caused by damage of the functional sheet and the flat cable, meets the requirement of false pressure test on products with different specifications, and has the advantages of low test cost, high test efficiency and wide application range.

Further: the pressing component 9 comprises a screw rod 14 and a first pressing plate 15, a threaded hole 16 for connecting the screw rod 14 in a threaded manner is formed in one side of the opening end of the U-shaped seat 5, the first pressing plate 15 is located on the inner side of the opening end of the U-shaped seat 5, a rotating handle 17 is arranged at one end of the screw rod 14, the other end of the screw rod 14 penetrates through the threaded hole 16 and is connected with one side of the first pressing plate 15, the silica gel foam pad 13 is connected to the other side of the first pressing plate 15, a yielding groove 18 for placing the first pressing plate 15 is formed in the inner wall of the opening end of the U-shaped seat 5, and the bottom of the yielding groove 18 is communicated with the threaded hole 16.

From the above description, when one side of the functional sheet is inserted into the groove 8, the rotating handle 17 is rotated through the screw 14, the first pressing plate 15, the threaded hole 16 and the rotating handle 17, so as to drive the other end of the screw 14 to rotate in the threaded hole 16 towards the U-shaped seat 5, and further drive the first pressing plate 15 to move towards the inner wall of the other side of the open end of the U-shaped seat 5 until the first pressing plate 15 presses the functional sheet against the inner wall of the other side of the open end of the U-shaped seat 5, thereby realizing the function of performing secondary positioning and fixing on one part of the functional sheet; in addition, through the groove 18 of stepping down for place first clamp plate 15, avoid placing the in-process in U type seat 5 with the function piece, because of the function piece with the preliminary positioning efficiency that the first clamp plate 15 collided and influence the function piece, realize the effect of further protection function piece.

Further: the pressing mechanism 2 comprises a support 19, a lifting driving part 20, a fixing plate 21, a guide rod 22, a spring 23 and a second pressing plate 24 for pressing the flat cable of the functional piece and the FPC together, the support 19 is installed on the platform 1, the lifting driving part 20 is connected with the support 19, the driving end of the lifting driving part 20 is connected with the second pressing plate 24 through the fixing plate 21, the bottom end of the guide rod 22 is connected with the platform 1, the fixing plate 21 is provided with a guide hole 25 for the upper end of the guide rod 22 to pass through, the spring 23 is sleeved on the outer peripheral surface of the guide rod 22, the spring 23 is located between the fixing plate 21 and the platform 1, and the bottom end of the second pressing plate 24 is provided with a protective soft cushion 26.

As can be seen from the above description, when the limiting plate 10 abuts against the other side of the functional sheet and the flat cable is aligned with the FPC, the lifting driving member 20 is started through the lifting driving member 20, the fixing plate 21, the guide rod 22, the guide hole 25 and the second pressing plate 24, the driving end of the lifting driving member 20 drives the fixing plate 21 to move downward, the guide rod 22 slides in the guide hole 25, so as to drive the second pressing plate 24 to move downward toward the direction between the flat cable and the FPC until the second pressing plate 24 presses downward to tightly press the flat cable and the FPC together, thereby realizing the function of automatically and directionally pressing the flat cable and the FPC together; through protection cushion 26 and spring 23 for cushion second clamp plate 24 and to winding displacement and FPC's pressure, avoid making winding displacement and FPC impaired because of winding displacement, FPC and the direct hard pressure of second clamp plate 24, cause functional piece, FPC and winding displacement to scrap and increase the test cost, realize further reducing test cost and the effect of protection functional piece, FPC and winding displacement.

Further: supporting shoe 6 installs slider 27 with the bottom that rotates piece 3, platform 1 sets up the spout 28 that supplies slider 27 to slide, and U type seat 5 can be dismantled near the one end of support 19 and be connected with the locating lever 29 that is the setting of L type, and the perpendicular end of locating lever 29 sets up for extending structure, and the horizontal end of locating lever 29 contacts with winding displacement one side of function piece, and locating piece 4 sets up the logical groove 30 of location of placing that supplies locating lever 29, is provided with retaining member 31 between slider 27 and the platform 1.

From the above description, when the pseudo-pressing test is required to be performed on the flat cable located at different positions of the functional sheet, before the rotary driving member 7 drives the rotary member 3 and the U-shaped seat 5 to move toward the supporting block 6, the positioning rod 29 arranged in an L-shape is passed through, since the vertical end of the positioning rod 29 is arranged in a telescopic structure, the lateral end of the positioning rod 29 is grasped and pulled toward one side of the flat cable of the fixed functional sheet until the lateral end of the positioning rod 29 contacts one side of the flat cable on the functional sheet, then the rotary driving member 7 is started, the rotary driving member 7 drives the other part of the functional sheet to be horizontally placed on the supporting block 6, then the supporting block 6 and the rotary member 3 are moved together along the directions of the two sides of the functional sheet through the sliding block 27 and the sliding groove 28 until the lateral end of the positioning rod 29 abuts against the groove wall of the positioning through groove 30, at this time, the flat cable is aligned with the FPC, and finally, the sliding block 27 is locked on the platform 1 through the locking member 31, the function of manually adjusting and positioning the flat cables positioned at different positions of the functional sheet is achieved; the false pressure test of products of different specifications is further satisfied, the utilization ratio of the jig is improved, and the effects of further increasing the application range and reducing the test cost are realized.

Further: the platform 1 is provided with an infrared sensor 32, the infrared sensor 32 is in electric signal connection with an external controller, the platform 1 is provided with a first translation cylinder 33 for driving the sliding block 27 to slide along the length direction of the sliding chute 28, and the output end of the external controller is in electric signal connection with the first translation cylinder 33.

As can be seen from the above description, when the flat cable and the FPC at different positions of the functional sheet need to be automatically aligned, before the rotary driving member 7 drives the rotary member 3 and the U-shaped seat 5 to move toward the supporting block 6, the transverse end of the positioning rod 29 contacts with one side of the flat cable on the functional sheet, the locking member 31 is taken out, then the rotary driving member 7 is started, the rotary driving member 7 drives the other part of the functional sheet to transversely place on the supporting block 6, then the external controller controls the first translating cylinder 33, the top rod of the first translating cylinder 33 extends to drive the sliding block 27 to move in the sliding slot 28 toward the positioning through slot 30, further drive the supporting block 6, the U-shaped seat 5 and the functional sheet to move together toward the positioning through slot 30, and then, when the transverse end of the positioning rod 29 moves to the slot wall of the positioning through slot 30 through the infrared sensor 32 and the external controller, at the moment, the flat cable is aligned with the FPC, finally, the infrared sensor 32 sends a detected signal of the positioning rod 29 to the external controller, the external controller controls the first translation cylinder 33 to stop working, and after the pseudo-pressing test of the flat cable and the FPC is finished, the external controller controls the first translation cylinder 33 to drive the U-shaped seat 5 and the supporting block 6 to reset, so that the flat cable at different positions of the functional block is automatically adjusted and positioned; the false pressure test of the products of different specifications is further satisfied, the utilization ratio of the jig is improved, and the effects of further increasing the application range and reducing the test cost are further realized.

Further: the rotary driving piece 7 is a rotary cylinder, an ejector rod of the rotary cylinder is detachably and fixedly connected with a closed end of the U-shaped seat 5, the translation driving piece 11 is a second translation cylinder, the ejector rod of the second translation cylinder is detachably and fixedly connected with the limiting plate 10, and the rotary cylinder and the second translation cylinder are respectively installed on two opposite sides of the supporting block 6.

From the above description, by starting the rotary cylinder, the ejector rod of the rotary cylinder drives the U-shaped seat 5 and the functional sheet to rotate together by 90 degrees in the direction of the supporting block 6, the other part of the functional sheet is transversely placed on the supporting block 6, and the flat cable is in alignment contact with the FPC, so that the effect of automatically aligning the flat cable and the FPC is realized; because the ejector pin of revolving cylinder can dismantle fixed connection with the closed end of U type seat 5, the ejector pin and the limiting plate 10 of second translation cylinder can dismantle fixed connection, play the effect of being convenient for U type seat 5 and limiting plate 10's change.

Referring to fig. 1 to 5, an embodiment of the present invention is:

a false pressure test fixture for a touch screen is shown in figures 1 and 2 and comprises a platform 1, wherein the platform 1 is provided with a pressing mechanism 2, a rotating piece 3, a positioning block 4 for placing an FPC (flexible printed circuit), a U-shaped seat 5 for vertically placing a functional piece, a supporting block 6 for horizontally placing the functional piece and a rotating driving piece 7 for driving the U-shaped seat 5 to rotate by 90 degrees; the pressing mechanism 2 is arranged above the joint of the positioning block 4 and the supporting block 6, the closed end of the U-shaped seat 5 is fixedly connected with the driving end of the rotary driving piece 7, and the closed end of the U-shaped seat 5 is connected with the platform 1 through the rotating piece 3; the rotary driving piece 7 is a rotary cylinder, and an ejector rod of the rotary cylinder is detachably and fixedly connected with the closed end of the U-shaped seat 5; the rotary cylinder is installed at the other side of the supporting block 6.

As shown in fig. 2 and 5, a groove 8 for inserting one side of the functional sheet is formed in the inner side of the closed end of the U-shaped seat 5, and silica gel foam pads 13 are respectively arranged on the groove 8 and the inner side wall of the U-shaped seat 5; open end one side of U type seat 5 is provided with and presses the subassembly 9 that compresses tightly in U type seat 5 with the function piece, it includes screw rod 14 and first clamp plate 15 to compress tightly subassembly 9, screw hole 16 that supplies 14 threaded connection of screw rod is seted up to open end one side of U type seat 5, first clamp plate 15 is located the open end inboard of U type seat 5, screw rod 14 one end is provided with rotatory handle 17, the screw rod 14 other end passes screw hole 16 and is connected with first clamp plate 15 one side, the opposite side of first clamp plate 15 is connected with the cotton pad 13 of silica gel bubble, the open end inner wall of U type seat 5 is seted up and is supplied the groove 18 of stepping down that first clamp plate 15 placed, the tank bottom and the screw hole 16 of groove 18 of stepping down communicate with each other.

As shown in fig. 1 and 4, the supporting block 6 is provided with a limiting plate 10 for limiting the other side of the functional sheet, one side of the limiting plate 10 is provided with a photoelectric switch 12 for detecting the other side of the functional sheet, and the supporting block 6 and the limiting plate 10 are provided with a silica gel foam pad 13; the bottom ends of the supporting block 6 and the rotating piece 3 are provided with a slide block 27,

as shown in fig. 2 and 4, the pressing mechanism 2 includes a bracket 19, a lifting driving member 20, a fixing plate 21, a guide rod 22, a spring 23, and a second pressing plate 24 for pressing the flat cable of the functional sheet and the FPC together; the lifting driving piece 20 can be a lifting cylinder or a push-pull type clamp, and is not limited to the structure, and other driving structures capable of driving the fixing plate 21 and the second pressing plate 24 to lift can be adopted.

As shown in fig. 1 and 3, one end of the U-shaped seat 5 close to the bracket 19 is detachably connected with a positioning rod 29 in an L-shaped arrangement, a vertical end of the positioning rod 29 is in a telescopic structure arrangement, a transverse end of the positioning rod 29 contacts with one side of the flat cable of the functional sheet, and the positioning block 4 is provided with a positioning through groove 30 for placing the positioning rod 29.

As shown in fig. 1 and fig. 2, the platform 1 is provided with a chute 28 for the sliding block 27 to slide, and a locking member 31 is arranged between the platform 1 and the sliding block 27; the platform 1 is provided with a translation driving part 11 for driving the limiting plate 10 to translate, the platform 1 is provided with an infrared sensor 32, the infrared sensor 32 is electrically connected with an external controller (not shown in the figure, the whole text is the same as the figure), the translation driving part 11 is a second translation cylinder, a top rod of the second translation cylinder is detachably and fixedly connected with the limiting plate 10, and the second translation cylinder is arranged on one side of the supporting block 6; the platform 1 is provided with a first translation cylinder 33 for driving the sliding block 27 to slide along the length direction of the sliding chute 28, and the output end of an external controller is in electric signal connection with the first translation cylinder 33.

In conclusion, compared with the prior art, the test device effectively avoids the problem of high test cost caused by damage of the functional sheet and the flat cable, meets the requirement of false pressure test on products with different specifications, and has the advantages of low test cost, high test efficiency and wide application range; the positioning of the FPC and the positioning and fixing of a part of the functional sheet are realized twice through the positioning block 4, the U-shaped seat 5, the pressing component 9 and the groove 8; the other part of the functional sheet is initially positioned and fixed and the flat cable and the FPC are automatically aligned by rotating the driving piece 7, the rotating piece 3 and the supporting block 6; through the photoelectric switch 12, the limiting plate 10 and the translational driving piece 11, the functional sheets with different sizes are positioned, the high test cost caused by low utilization rate of the jig and the influence on the overall test efficiency caused by the shaking of the functional sheets are avoided, and the effects of enlarging the application range of the jig, secondarily fixing the other part of the functional sheet and improving the overall efficiency are achieved; the pressing mechanism 2 is used for automatically performing false pressure test on the flat cable and the FPC; through the cotton pad 13 of silica gel bubble, avoid function piece and winding displacement to get wearing and tearing and cause the test cost increase of putting the in-process, realize the effect of protection function piece and reduction test cost.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims (6)

1. The utility model provides a false test fixture that presses of touch-sensitive screen which characterized in that: the device comprises a platform, wherein the platform is provided with a pressing mechanism, a rotating part, a positioning block for placing an FPC (flexible printed circuit), a U-shaped seat for vertically placing a functional sheet, a supporting block for horizontally placing the functional sheet and a rotating driving part for driving the U-shaped seat to rotate by 90 degrees, the pressing mechanism is arranged above the joint of the positioning block and the supporting block, the closed end of the U-shaped seat is fixedly connected with the driving end of the rotating driving part, and the closed end of the U-shaped seat is connected with the platform through the rotating part; the utility model discloses a portable electronic device, including U type seat, limiting plate, supporting shoe, recess, platform, limiting plate, the closed end inboard of U type seat is seted up the recess that supplies function piece one side to peg graft, open end one side of U type seat be provided with press the function piece in the subassembly that compresses tightly in the U type seat, the supporting shoe is provided with the limiting plate that is used for injecing the function piece opposite side, the platform is installed the drive the translation driving piece of limiting plate translation, limiting plate one side is provided with the photoelectric switch who detects the function piece opposite side, the inside wall of limiting plate, supporting shoe, recess, U type seat and the one end that the subassembly that compresses tightly is close to the function piece all is provided with the cotton pad of silica gel bubble.

2. The false pressure test fixture for touch screens according to claim 1, characterized in that: compress tightly the subassembly and include screw rod and first clamp plate, the confession has been seted up to open end one side of U type seat screw rod threaded connection's screw hole, first clamp plate is located the open end of U type seat is inboard, screw rod one end is provided with rotatory handle, the screw rod other end passes the screw hole and with first clamp plate one side is connected, the cotton pad of silica gel bubble connect in the opposite side of first clamp plate, the confession has been seted up to the open end inner wall of U type seat the groove of stepping down that first clamp plate was placed, the tank bottom in groove of stepping down with the screw hole communicates with each other.

3. The false pressure test fixture for touch screens according to claim 1, characterized in that: pressing mechanism includes support, lift driving piece, fixed plate, guide arm, spring and is used for the second clamp plate that is in the same place the winding displacement of function piece with FPC pressfitting, the support mounting in on the platform, the lift driving piece with leg joint, the drive end of lift driving piece with the second clamp plate passes through the fixed plate is connected, the guide arm bottom with the platform is connected, the confession has been seted up to the fixed plate the guiding hole that the guide arm upper end passed, the spring housing is in the outer peripheral face of guide arm, the spring is located the fixed plate with between the platform, the bottom of second clamp plate is provided with the protection cushion.

4. The false pressure test fixture for touch screens according to claim 3, characterized in that: the utility model discloses a support piece, including support piece, locating piece, slider, platform, U type seat, locating piece, slider, support piece, the slider is installed with the bottom of rotating the piece, the spout that supplies the slider slides is seted up to the platform, the U type seat is close to the one end of support can be dismantled and be connected with the locating lever that is the setting of L type, but the vertical end of locating lever sets up for extending structure, the horizontal end and the winding displacement one side contact of function piece of locating lever, the locating piece is seted up the confession the location of placing of locating lever leads to the groove, the slider with be provided with the retaining member between the platform.

5. The false pressure test fixture for touch screens according to claim 4, wherein: the platform is provided with infrared sensor, infrared sensor electric signal connection has external controller, the platform is provided with the drive the slider is followed the first translation cylinder that spout length direction slided, external controller's output with first translation cylinder electric signal connection.

6. The false pressure test fixture for touch screens according to claim 1, characterized in that: the rotary driving piece is a rotary cylinder, an ejector rod of the rotary cylinder is detachably and fixedly connected with the closed end of the U-shaped seat, the translation driving piece is a second translation cylinder, the ejector rod of the second translation cylinder is detachably and fixedly connected with the limiting plate, and the rotary cylinder and the second translation cylinder are respectively installed on two opposite sides of the supporting block.

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