TW201433794A - Bending fixture - Google Patents

Abstract

A bending fixture for bending test of screen includes a base, a fixing assembly fixed on the base, a rotating portion, a pulling rod, and a positioning portion. The fixing assembly includes a slidably positioning rod. The rotating portion is mounted on the base, the pulling rod and the positioning portion are positioned two opposites of the rotating portion. The positioning rod resists the screen, the pulling rod is located at one end of the screen. The rotating portion drives the pulling portion to reversely rotate relative to the positioning rod, for allowing the screen to tilt.

Description

Bending fixture

The invention relates to a bending fixture, in particular to a bending fixture for screen strength testing.

The screen of the mobile phone, such as the touch display screen, is tested for sensitivity and strength before assembly. The strength test of the screen is to test the pressure resistance and the strength of the bending. Usually, the screen is placed on the fixture table and manually tested manually. However, large-scale product testing is slow and the test quality is low.

In view of the above problems, it is necessary to provide a bending jig for improving the test efficiency.

A bending fixture for a bending test of a screen, the bending fixture comprising a base and a fixing fixture disposed on the base, the fixing fixture comprising a slidable positioning rod, the bending fixture further comprising a rotating portion a lever and a positioning portion, the rotating portion is mounted on the base, the lever and the positioning portion are respectively mounted at positions opposite to the rotating portion, the positioning rod is pressed against the screen, and the lever is located at one end of the screen, The rotating portion drives the lever to rotate to tilt the screen in a direction opposite to the pressure of the positioning rod.

The bending fixture rotates the lever relative to the positioning rod by the rotating portion to realize the bending of the screen to the screen, and the bending fixture has simple operation and the test is relatively accurate and fast.

10. . . Base

11. . . switch

12. . . Cover

121. . . The outer surface

122. . . The inner surface

123. . . Passage

15. . . Controller

20. . . Fixed fixture

twenty one. . . Bearing surface

211. . . Chute

twenty two. . . Positioning rod

30. . . Bending component

31. . . Stepper motor

311. . . Rotating end

32. . . motor driver

33. . . Mount

34. . . support

341. . . Bearing

35. . . Rotating part

351. . . Runner

352. . . Rotating shaft

36. . . Conveyor belt

37. . . Pole

371. . . Pick

38. . . Positioning department

381. . . sensor

382. . . Adjustment plug

39. . . Cover

1 is an exploded perspective view of a bending jig according to a preferred embodiment of the present invention.

FIG. 2 is another exploded perspective view of the bending jig shown in FIG. 1. FIG.

3 is a schematic structural view of a portion of the bending jig shown in FIG. 1.

4 is a partial assembly view of the bending jig shown in FIG. 1.

FIG. 5 is a schematic view showing the assembly of the bending jig shown in FIG. 1. FIG.

Referring to FIG. 1 and FIG. 4 together, the bending fixture of the preferred embodiment of the present invention is used for the screen bending strength test. The bending fixture includes a base 10, a controller 15, a fixed fixture 20 for carrying the screen, and a bending assembly 30. The controller 15, the fixed jig 20 and the bending assembly 30 are mounted on the base 10. The controller 15 controls the bending assembly 30 to bend the screen on the fixed jig 20.

Referring to FIG. 2 together, the base 10 is a box body including a switch 11 and a cover plate 12. The switch 11 is disposed on one side of the base 10. The cover 12 includes an outer surface 121, an inner surface 122, and a through groove 123 extending through the outer surface 121 and the inner surface 122. The controller 15 is disposed on one side of the outer surface 121 adjacent to the through slot 123, and is connected to a power supply box (not shown) fixed to the inner surface for controlling the bending fixture. The fixing jig 20 is a plate body that is mounted at one end of the outer surface 121. The fixing jig 20 includes a bearing surface 21 and a positioning rod 22 . A sliding groove 211 is disposed on both sides of the bearing surface 21 . The two ends of the positioning rod 22 are slidably mounted in the two sliding slots 211 and located above the bearing surface for adjusting the position of the positioning rod 22 to be fixed.

Referring to FIG. 3 and FIG. 4 together, the bending assembly 30 includes a stepping motor 31, a motor driver 32, a mounting bracket 33, two brackets 34, a rotating portion 35, a conveyor belt 36, a lever 37, and a positioning portion 38. The mounting bracket 33 and the motor driver 32 are oppositely disposed on the inner surface 122 and are located on both sides of the through slot 123. The stepping motor 31 is provided with a rotating end 311. The stepping motor 31 is mounted on the mounting frame 33, and the rotating end 311 is opposed to the motor driver 32. The two brackets 34 are mounted on the outer surface 121 on opposite sides of the through slot 123 and opposite to the mounting frame 33 and the motor driver 32. The two brackets 34 are each provided with a bearing 341. The rotating portion 35 includes a rotating wheel 351 and a rotating shaft 352 provided on both sides of the rotating wheel 351. The two rotating shafts 352 are rotatably mounted in the bearings 341 of the two brackets 34. The conveyor belt 36 passes through the through slot 123 and is sleeved on the rotating wheel 351 and the rotating end 311. The stepping motor 31 drives the rotating wheel 351 to rotate. The lever 37 is generally an "L" shaped lever for bending the screen on the fixture 20. One end of the lever 37 is mounted on one end of the rotating shaft 352 of the rotating portion 35, and the other end has a paddle 371. The positioning portion 38 is used to adjust the position of the lever 37, and includes two sensors 381 and two adjusting pins 382. The two adjusting pins 382 are sleeved on the end of the other rotating shaft 352 of the rotating portion 35. The two inductors 381 are spaced apart from the outer surface 121 of the through groove 123 and respectively opposed to the two adjusting pins 382.

As shown in FIG. 5, the two brackets 34 are mounted on the cover plate 12, and the runner 351 is supported on the two brackets 34. The conveyor belt 36 is sleeved on the rotating wheel 351 and the rotating end 311. 38 and the lever 37 are located at the end of the two rotating shafts 352. The lever 37 is located above one end of the fixing jig 20, and the rotating portion 35 is covered by a cover 39. When the bending fixture is used, the screen to be tested is mounted on the bearing surface 21 of the fixing fixture 20, and the screen is pressed against the surface by the positioning rod 22 to mount the screen on the positioning rod 22 and the bearing surface. Between 21, the paddle 371 of the lever 37 is located at one end of the other side of the screen opposite to the surface against which the positioning rod 22 is pressed. The lever 37 and the positioning rod 22 clamp the screen to initiate the rotation. In the portion 35, the stepping motor 31 drives the belt 36 to drive, thereby driving the wheel 351 to rotate. The rotating shaft 352 moves the lever 37 away from the bearing surface 21, and lifts one end of the screen by the positioning. The adjusting bolt 382 of the portion 38 adjusts the rotation angle of the rotating shaft 352, that is, the rotation angle of the paddle 371, thereby controlling the bending angle of the screen to test the bending strength of the screen.

The bending jig of the present invention drives the rotating wheel 351 and the rotating shaft 352 to rotate by the stepping motor 31, thereby realizing the bending of the screen by the lever 37, and adjusting the bending strength by the positioning portion 38 to realize automatic testing, and the folding test The bending fixture is easy to operate, the test is more accurate and faster, and it will not cause damage to the test workpiece, which is suitable for batch operation.

10. . . Base

12. . . Cover

15. . . Controller

20. . . Fixed fixture

twenty two. . . Positioning rod

30. . . Bending component

35. . . Rotating part

36. . . Conveyor belt

37. . . Pole

371. . . Pick

38. . . Positioning department

Claims (8)

A bending fixture for a bending test of a screen, the bending fixture comprising a base and a fixing fixture disposed on the base, wherein the fixing fixture comprises a slidable positioning rod, the bending fixture The rotating part is further disposed on the base, and the rotating part is respectively mounted on the opposite position of the rotating part, and the positioning rod presses the screen, the lever is located at the same At one end of the screen, the rotating portion drives the lever to rotate to tilt the screen in a direction opposite to the pressure of the positioning rod. The bending jig of claim 1, wherein the base comprises a cover plate, the cover plate comprises an outer surface, an inner surface and a through groove extending through the outer surface and the inner surface, and the bending fixture further comprises a bracket provided with bearings on both sides of the outer surface through groove, the rotating portion includes a rotating wheel and a rotating shaft disposed at two sides of the rotating wheel, the rotating wheel is mounted in the bearing of the bracket to support the rotating wheel Above the trough. The bending jig of claim 2, wherein the lever is disposed at one end of the rotating shaft of the rotating portion; the positioning portion includes two inductors and two adjusting bolts, and the adjusting bolt is spaced apart from the sleeve The other end of the rotating shaft is disposed at one side of the through slot and opposite to the two adjusting bolts respectively. The bending jig of claim 2, wherein the bending jig further comprises a stepping motor and a conveyor belt provided with a rotating end, the stepping motor is mounted on the inner surface, and the conveyor belt is sleeved on the The rotating end and the rotating wheel further drive the rotating shaft to rotate in the bearing. The bending jig of claim 4, wherein the bending fixture further comprises a motor driver and a mounting bracket, the motor driver and the mounting bracket are oppositely mounted on the inner surface and are located on both sides of the through slot and the two brackets. In contrast, the stepper motor is mounted on the mounting bracket opposite the motor drive. The bending jig of claim 5, wherein the free end of the lever extends with a paddle, the fixing jig is mounted on the outer surface and is provided with a bearing surface, the paddle is located at one end of the bearing surface Above. The bending jig of claim 6, wherein the bearing surface is provided with two opposite sliding slots, and the positioning rod is slidably mounted in the sliding slot above the bearing surface. The bending fixture of claim 7, wherein the base further comprises a switch and a controller for starting and controlling the bending fixture.