Device for bending and deforming flexible electronic devices

Abstract

A device for bending and deforming a flexible electronic device comprises: a housing portion, a transmission mechanism and an operating end respectively arranged inside and outside the housing portion, wherein the transmission mechanism and the operating end are connected. The invention has a compact structure and is easy to operate. It can provide bending deformations with different bending curvatures for flexible electronic devices, and can meet the requirements of bending deformation tests and combined bending and stretching deformation tests of flexible electronic devices. The characteristic of being clampable makes it applicable to a variety of test scenarios.

Description

Technical Field

[0001] The present invention relates to a technology in the field of flexible electronic devices, in particular to a device for bending and deforming flexible electronic devices. Background Art

[0002] Flexible electronic tensile testing machines are mainly used to perform tensile deformation tests on flexible electronic devices. Therefore, flexible electronic tensile testing machines usually do not have bending deformation testing modules, which makes the flexible electronic tensile testing machines unable to meet the needs of flexible electronic devices with bending deformation testing or combined tensile and bending deformation testing, limiting the use of flexible electronic tensile testing machines in mechanical testing of flexible electronic devices.

[0003] When conducting force-electric response tests and force-temperature-electric response tests on larger flexible electronic devices, some special fixtures are often used on the flexible electronic tensile testing machine. In addition, some measurement modules are also overlapped, such as electrical measurement modules, temperature control modules, etc. Their fixed positions will make it difficult to apply bending deformation to the flexible electronic devices. Therefore, a device that can enable flexible electronic devices to bend and deform and can be used flexibly is needed. Summary of the invention

[0004] In view of the problem that existing flexible electronic tensile testing machines are unable to perform bending deformation tests on flexible electronic devices, the present invention proposes a device for bending deformation of flexible electronic devices. The present invention has a compact structure and is easy to operate. It can provide flexible electronic devices with bending deformations with different bending curvatures, and can meet the needs of bending deformation tests and combined stretch-bending deformation tests of flexible electronic devices. The feature of being able to be clamped for use enables it to be used in a variety of test scenarios.

[0005] The present invention is achieved through the following technical solutions:

[0006] The invention relates to a device for bending and deforming a flexible electronic device, comprising a shell part, a transmission mechanism and an operating end respectively arranged inside and outside the shell part, wherein the transmission mechanism and the operating end are connected.

[0007] The transmission mechanism includes: a transmission screw with a clamping control knob, an upper transmission shaft, a middle transmission shaft and a lower transmission shaft fixedly arranged in sequence in the shell part, and two sliding racks movably arranged in sequence in the shell part, wherein: the upper transmission shaft is provided with an upper linear transmission gear meshing with the transmission screw, the lower transmission shaft is provided with a lower linear transmission gear, the upper transmission shaft and the middle transmission shaft are meshed through a first transmission gear pair, the middle transmission shaft and the lower transmission shaft are meshed through a second transmission gear pair and a synchronous belt, and the upper linear transmission gear and the lower linear transmission gear are respectively meshed with corresponding sliding racks.

[0008] The operating end includes: a clamping end, a z-direction adjustment end, a y-direction adjustment end, a core shaft clamping end, a y-direction guide rail and a connecting rod which are arranged on the upper clamping end and connected in sequence, wherein: the clamping end and the z-direction adjustment end are respectively fixedly connected to two sliding racks of the transmission mechanism, the y-direction adjustment end is connected to the z-direction adjustment end through a z-direction adjustment screw, and the core shaft clamping end is connected to the y-direction adjustment end through a y-direction guide rail and a connecting rod.

[0009] Technical Effects

[0010] The present invention enables the device to be used vertically or clamped by means of a shell part and a transmission mechanism, and the spatial position of the core shaft in two directions can be adjusted by means of an operating end, so that the core shaft contacts the flexible electronic device and can generate bending deformations with different bending curvatures.

[0011] Compared with the prior art, the present invention provides a way to perform bending deformation testing on a flexible electronic tensile testing machine, so that the flexible electronic tensile testing machine has the ability to perform bending deformation testing and combined bending and stretching deformation testing, thereby achieving the purpose of conveniently performing bending deformation testing or combined bending and stretching deformation testing on a flexible electronic tensile testing machine under a variety of testing environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the structure of the shell part;

[0014] Figure 3 It is a schematic diagram of the transmission mechanism structure;

[0015] Figure 4 It is a schematic diagram of the structure of two sliding racks;

[0016] Figure 5 It is a schematic diagram of the structure of the connecting block and the clamping plate;

[0017] Figure 6 It is a schematic diagram of the structure of the z-direction adjustment end;

[0018] Figure 7 It is a schematic diagram of the structure of the y-direction adjustment end;

[0019] Figure 8 It is a schematic diagram of the T-shaped slider structure;

[0020] Fig. 9 It is a schematic diagram of the U-shaped bottom plate structure;

[0021] Fig.10 It is a schematic diagram of the connection structure between the chair-shaped guide block and the mandrel clamping end;

[0022] Fig.11 This is a cross-sectional view of the mandrel chuck.

[0023] In the figure: housing part I, transmission mechanism II, operating end III, base shell 1-1, two side plates 1-2, top plate 1-3, clamping control knob 2, transmission screw 3, upper linear transmission gear 4, two sliding racks 5, upper transmission shaft 6, first transmission gear pair 7, middle transmission shaft 8, second transmission gear pair 9, synchronous belt 10, lower linear transmission gear 11, lower transmission shaft 12, clamping end 13, connecting block 13-1, two clamping plates 13-2, z-adjustment end 14, sleeve shell 14-1, z-adjustment knob 14-2, z-adjustment Section screw 14-3, two z-guide rails 14-4, y-adjustment end 15, U-shaped base plate 15-1, horizontal adjustment knob 15-2, block 15-3, x-adjustment screw 15-4, T-shaped slider 15-5, circular column 15-6, scissor mechanism 15-7, chair-shaped guide block 15-8, push slider 15-9, roller 15-10, mandrel clamping end 16, mandrel clamping platform 16-1, preload spring 16-2, telescopic rod 16-3, mandrel chuck 16-4, mandrel 16-5, y-guide rail 17, connecting rod 18. DETAILED DESCRIPTION

[0024] like Figure 1 As shown, this embodiment relates to a device for bending and deforming a flexible electronic device, comprising: a shell part I, a transmission mechanism II and an operating end III respectively arranged inside and outside the shell part I, wherein: the transmission mechanism II and the operating end III are connected.

[0025] like Figure 3 As shown, the transmission mechanism II includes: a transmission screw 3 with a clamping control knob 2, an upper transmission shaft 6, a middle transmission shaft 8 and a lower transmission shaft 12 fixedly arranged in the shell part I in sequence, and two sliding racks 5 movably arranged in the shell part I in sequence, wherein: the upper transmission shaft 6 is provided with an upper linear transmission gear 4 meshing with the transmission screw 3, the lower transmission shaft 12 is provided with a lower linear transmission gear 11, the upper transmission shaft 6 and the middle transmission shaft 8 are meshed through a first transmission gear pair 7, the middle transmission shaft 8 and the lower transmission shaft 12 are meshed through a second transmission gear pair 9 and a synchronous belt 10, and the upper linear transmission gear 4 and the lower linear transmission gear 11 are respectively meshed with the corresponding sliding racks 5.

[0026] The upper linear transmission gear 4 is fixed at the center of the upper transmission shaft 6 by a locking bolt, and the lower linear transmission gear 11 is fixed at the center of the lower transmission shaft 12 by a locking bolt.

[0027] The first transmission gear pair 7 and the second transmission gear pair 9 are both fixed on the transmission shaft by locking bolts.

[0028] The transmission screw 3 has a self-locking property, which prevents the clamping force from being relaxed when the device is clamped. In addition, it also prevents the clamping end 13 from having a relative movement due to the deadweight of the connecting piece when the device is not clamped.

[0029] like Figure 4 As shown, a square groove is provided on the front side of the sliding rack 5, a threaded hole is provided in the groove, a connecting block 13-1 and a casing 14-1 are inserted into the groove, and two clamping plates 13-2, a connecting block 13-1 and a casing 14-1 are fixed to the two sliding racks 5 by bolts; a rack is provided on the rear side of the sliding rack 5, and sliding plates are provided on the left and right sides, and the two sliding racks 5 are driven by the upper linear transmission gear 4 and the lower linear transmission gear 11 to make the two sliding racks 5 move relative to each other in the sliding groove with the help of the sliding plates.

[0030] like Figure 2 As shown, the shell part I includes: a base shell 1-1 and two side plates 1-2 and a top plate 1-3 respectively fixedly connected thereto.

[0031] The two side plates 1 - 2 are provided with three circular grooves for clamping bearings at the same position, and the upper transmission shaft 6 , the middle transmission shaft 8 and the lower transmission shaft 12 are respectively fixed therein by bearings.

[0032] One side of the base shell 1 - 1 is provided with a sliding groove symmetrical about the center line, and the sliding rack 5 is movably arranged in the sliding groove and meshes with the upper linear transmission gear 4 and the lower linear transmission gear 11 respectively.

[0033] The top plate 1-3 fixes the transmission screw 3 through a bearing seat.

[0034] like Figure 2 As shown, the center line of the circular groove on the two side plates 1-2 for fixing the upper transmission shaft 6 is located at 1 / 4 of the length of the sliding groove from the top of the sliding groove, and the center line of the circular groove for fixing the lower transmission shaft 12 is located at 1 / 4 of the length of the sliding groove from the bottom of the sliding groove. The length of the two sliding racks 5 is 1 / 4 of the length of the sliding groove, and they are symmetrically placed about the center line of the sliding groove. During transmission, the upper linear transmission gear 4 and the lower linear transmission gear 11 drive the two sliding racks 5 to approach each other to the extreme position where the surfaces of the two sliding racks 5 can just contact each other, and the extreme position where they are far away from each other can just make the surfaces of the two sliding racks 5 contact the end face of the sliding groove, so that the stroke of the sliding groove can be fully utilized.

[0035] like Figure 1 and Fig.10As shown, the operating end III includes: a clamping end 13, a z-direction adjustment end 14, a y-direction adjustment end 15, a core shaft clamping end 16, a y-direction guide rail 17 and a connecting rod 18 which are arranged on the upper clamping end 13 and are connected in sequence, wherein: the clamping end 13 and the z-direction adjustment end 14 are respectively fixedly connected to the two sliding racks 5 of the transmission mechanism II, the y-direction adjustment end 15 is connected to the z-direction adjustment end 14 through a z-direction adjustment screw 14-2, and the core shaft clamping end 16 is connected to the y-direction adjustment end 15 through the y-direction guide rail 17 and the connecting rod 18.

[0036] like Figure 5 As shown, the clamping end 13 includes: a connecting block 13-1 and a clamping plate 13-2.

[0037] like Figure 6 As shown, the z-direction adjustment end 14 comprises: a casing 14-1, a z-direction adjustment screw 14-3 and two z-direction guide rails 14-4 arranged inside the casing 14-1, wherein: a z-direction adjustment knob 14-2 is arranged at the end of the z-direction adjustment screw 14-3.

[0038] like Figure 7 As shown, the y-adjustment end 15 includes: a U-shaped base plate 15-1 and a T-shaped slider 15-5 arranged therein, an x-adjustment screw 15-4, a scissor-type mechanism 15-7, a pushing slider 15-9 and a chair-shaped guide block 15-8 with a roller 15-10, wherein: the T-shaped slider 15-5 is slidably arranged on the x-adjustment screw 15-4, one end of the scissor-type mechanism 15-7 is connected to the T-shaped slider 15-5, and the other end is connected to the pushing slider 15-9, the pushing slider 15-9 is movably arranged on the chair-shaped guide block 15-8, and the chair-shaped guide block 15-8 is movably arranged on the U-shaped base plate 15-1 through the roller 15-10.

[0039] A clamping block 15-3 and a horizontal adjustment knob 15-2 are provided at the end of the x-direction adjustment screw rod 15-4. By adjusting the horizontal adjustment knob 15-2, the movement of the T-shaped slider 15-5 in the x-direction can be controlled.

[0040] The scissor mechanism 15-7 is connected to the U-shaped bottom plate 15-1, the T-shaped slider 15-5 and the push slider 15-9 through the circular column 15-6.

[0041] The scissor-type mechanism 15-7 is provided with four connecting parts of equal length. The sliding groove stroke on the U-shaped base plate 15-1 and the sliding groove stroke on the chair-shaped guide block 15-8 are equal to the length of a single connecting part of the scissor-type mechanism 15-7. The process of the scissor-type mechanism 15-7 from folding to fully unfolding can make the y-direction displacement of the chair-shaped guide block 15-8 and the core shaft clamping end 16 close to twice the sliding groove stroke on the U-shaped base plate 15-1.

[0042] When the scissor mechanism 15-7 is fully unfolded, the chair-shaped guide block 15-8 can just reach the end of the U-shaped bottom plate 15-1, at which time the maximum y-direction displacement is achieved.

[0043] like Figure 5 and Figure 6 As shown, the configuration of the lower end of the casing 14-1 is consistent with the structure of the connecting block 13-1.

[0044] like Figure 6 As shown, the two z-guide rails 14 - 4 provided at the z-adjustable end 14 ensure the convenience of installation and the stability of movement of the y-adjustable end 15 .

[0045] When the device is in a clamped state, the z-direction movement of the y-direction adjustment end 15 can be adjusted by the z-direction adjustment knob 14-2. When the device is in an unclamped state, the z-direction movement of the y-direction adjustment end 15 can also be adjusted by the clamping control knob 2.

[0046] like Figure 8 As shown, the slides arranged at both ends of the T-shaped slider 15-5 are inserted into the sliding grooves, which can ensure the stability of the movement.

[0047] like Fig. 9 As shown, the U-shaped base plate 15-1 is provided with two limit columns in the sliding groove, and the clamping block 15-3 is inserted on the limit columns to realize the connection with the U-shaped base plate 15-1; rolling grooves are provided on both sides of the U-shaped base plate 15-1, and a threaded hole connecting the y-direction guide rail 17 and a threaded hole connecting the z-direction adjustment end 14 are provided at the symmetrical center.

[0048] like Figure 1 and Fig.10 As shown, the mandrel clamping end 16 comprises: a mandrel clamping platform 16-1 and a telescopic rod 16-3, a mandrel chuck 16-4 and a mandrel 16-5 arranged therein in sequence, wherein: a pre-tightening spring 16-2 is provided on the outside of the telescopic rod 16-3, the mandrel 16-5 is clamped by the mandrel clamping platform 16-1 and the mandrel chuck 16-4, a through hole corresponding to the y guide rail 17 and the connecting rod 18 is provided below the mandrel clamping platform 16-1, the pre-tightening spring 16-2 is always in a compressed state, when the mandrel 16-5 is not placed, the mandrel chuck 16-4 is subjected to pressure and pressed together with the mandrel clamping platform 16-1, and when the mandrel 16-5 is placed, the pressure on the mandrel chuck 16-4 can clamp the mandrel 16-5.

[0049] like Fig.10 As shown, the connecting rod 18 is provided with threads at both ends, one end is connected to the chair-shaped guide block 15-8, and the other end is connected to the mandrel clamping platform 16-1, and the mandrel clamping platform 16-1 is fixed on the connecting rod 18 by a nut.

[0050] The y-guide rail 17 extends to the end of the U-shaped base plate 15-1. The functions of the y-guide rail 17 are: 1. Together with the roller 15-10, it limits the rotation of the chair-shaped guide block 15-8, which is beneficial to structural assembly and working stability; 2. When performing a combined tensile and bending deformation test, the core shaft 16-5 may be subjected to a large downward force from the flexible electronic device. At this time, most of the force effect can be transmitted to the y-guide rail 17, reducing the influence of the force on the motion mechanism.

[0051] like Fig.11 As shown, four concentric circular grooves with diameters of 10 mm, 5 mm, 2 mm, and 1 mm are arranged in the mandrel chuck 16-4, and one end of the mandrel clamping platform 16-1 opposite to the mandrel chuck 16-4 is also provided with concentric circular grooves of the same size, so that the mandrel clamping end 16 can clamp mandrels 16-5 of different diameters to meet the testing requirements of flexible electronic devices with different bending curvatures.

[0052] The device works in the following manner: the clamping control knob 2 drives the transmission screw 3 to rotate, the transmission screw 3 drives the upper linear transmission gear 4 to rotate, the rotation of the upper linear transmission gear 4 causes the upper racks of the two sliding racks 5 to start linear motion along the sliding groove of the shell part I, and at the same time the upper transmission shaft 6 transmits the direction of the upper linear transmission gear 4 to the first transmission gear pair 7, the first transmission gear pair 7 changes the direction and transmits it to the second transmission gear pair 9 through the middle transmission shaft 8, the second transmission gear pair 9 uses the synchronous belt 10 to make the lower transmission shaft 12 and the middle transmission shaft 8 rotate in the same direction, driven by the lower transmission shaft 12, the lower linear transmission gear 11 and the upper linear transmission gear 4 rotate in the opposite direction, so that the two sliding racks 5 move relative to each other in the sliding groove. The z-direction adjusting knob 14-2 is adjusted to make the y-direction adjusting end 15 move along the z-direction driven by the z-direction adjusting screw 14-3. If the clamping end 13 is not in the clamping state, the z-direction movement of the y-direction adjusting end 15 can also be adjusted by the clamping control knob 2. The horizontal adjusting knob 15-2 is adjusted to make the T-shaped slider 15-5 move along the x-direction driven by the x-direction adjusting screw 15-4. The scissor-type mechanism 15-7 is folded or unfolded along the y-direction driven by the T-shaped slider 15-5, and drives the chair-shaped guide block 15-8 to move in the y-direction. The core shaft clamping end 16 also moves along the y-direction driven by the connecting rod 18. The whole process realizes the adjustment of the core shaft 16-5 in the z-direction and y-direction movements.

[0053] After specific practical experiments, it was found that under the setting of a flexible electronic tensile testing machine and related fixtures, electrical testing modules and temperature control modules, the above-mentioned device can conveniently cause flexible electronic devices to produce bending deformation or a combination of stretching and bending deformation.

[0054] Compared with the prior art, the combination of a flexible electronic tensile testing machine and the present device enables the flexible electronic tensile testing machine to have the ability to perform bending deformation tests and combined bending and stretching deformation tests, thereby enabling flexible electronic devices to be conveniently tested for bending deformation or combined bending and stretching deformation tests on the flexible electronic tensile testing machine under a variety of test environments.

[0055] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. A device for bending and deforming a flexible electronic device, characterized in that: include: A housing portion, a transmission mechanism and an operating end respectively arranged inside and outside the housing portion, wherein the transmission mechanism and the operating end are connected; The transmission mechanism comprises: a transmission screw with a clamping control knob, an upper transmission shaft, a middle transmission shaft and a lower transmission shaft fixedly arranged in sequence in the housing part, and two sliding racks movably arranged in sequence in the housing part, wherein: an upper linear transmission gear meshing with the transmission screw is arranged on the upper transmission shaft, a lower linear transmission gear is arranged on the lower transmission shaft, the upper transmission shaft and the middle transmission shaft are meshed through a first transmission gear pair, the middle transmission shaft and the lower transmission shaft are meshed through a second transmission gear pair and a synchronous belt, and the upper linear transmission gear and the lower linear transmission gear are respectively meshed with corresponding sliding racks; The operating end includes: a clamping end, a z-direction adjustment end, a y-direction adjustment end, a mandrel clamping end, a y-direction guide rail and a connecting rod, which are arranged on the upper clamping end and are connected in sequence, wherein: the clamping end and the z-direction adjustment end are respectively fixedly connected to two sliding racks of the transmission mechanism, the y-direction adjustment end is connected to the z-direction adjustment end through a z-direction adjustment screw, and the mandrel clamping end is connected to the y-direction adjustment end through a y-direction guide rail and a connecting rod; The z-direction adjustment end comprises: a casing, a z-direction adjustment screw and two z-direction guide rails arranged inside the casing, wherein: a z-direction adjustment knob is arranged at the end of the z-direction adjustment screw; The y-direction adjustment end includes: a U-shaped base plate and a T-shaped slider arranged inside it, an x-direction adjustment screw, a scissor-type mechanism, a propulsion slider and a chair-shaped guide block with rollers, wherein: the T-shaped slider is slidably arranged on the x-direction adjustment screw, one end of the scissor-type mechanism is connected to the T-shaped slider, and the other end is connected to the propulsion slider, the propulsion slider is movably arranged on the chair-shaped guide block, and the chair-shaped guide block is movably arranged on the U-shaped base plate through rollers.

2. The device for bending and deforming a flexible electronic device according to claim 1, characterized in that: The front side of the sliding rack is provided with a square groove, and a threaded hole is provided in the groove. The connecting block and the sleeve are inserted into the groove, and the two clamping plates, the connecting block and the sleeve are fixed to the two sliding racks by bolts; the rear side of the sliding rack is provided with a rack, and the left and right sides are provided with sliding plates. Through the transmission of the upper linear transmission gear and the lower linear transmission gear, the two sliding racks are allowed to move relative to each other in the sliding groove with the help of the sliding plates.

3. The device for bending and deforming a flexible electronic device according to claim 1, characterized in that: The shell part includes: a base shell and two side plates and a top plate respectively fixedly connected thereto; The two side plates are provided with three circular grooves for clamping bearings at the same position, and the upper transmission shaft, the middle transmission shaft and the lower transmission shaft are respectively fixed therein through bearings; One side of the base shell is provided with a sliding groove symmetrical about the center line, and the sliding rack is movably arranged in the sliding groove and meshes with the upper linear transmission gear and the lower linear transmission gear respectively.

4. The device for bending and deforming a flexible electronic device according to claim 3, characterized in that: The center line of the circular groove on the two side plates for fixing the upper transmission shaft is located at 1 / 4 of the length of the sliding groove from the top end of the sliding groove, and the center line of the circular groove for fixing the lower transmission shaft is located at 1 / 4 of the length of the sliding groove from the bottom end of the sliding groove. The length of the two sliding racks is 1 / 4 of the length of the sliding groove, and they are placed symmetrically about the center line of the sliding groove. During transmission, the upper linear transmission gear and the lower linear transmission gear drive the two sliding racks to approach each other to the extreme position where the surfaces of the two sliding racks just contact each other, and the extreme position where they are far away from each other just makes the surfaces of the two sliding racks contact the end face of the sliding groove, so that the stroke of the sliding groove can be fully utilized.

5. The device for bending and deforming a flexible electronic device according to claim 1, characterized in that: The end of the x-direction adjusting screw is provided with a block and a horizontal adjusting knob, and the movement of the T-shaped slider in the x-direction can be controlled by adjusting the horizontal adjusting knob; The scissor-type mechanism is connected with the U-shaped bottom plate, the T-shaped sliding block and the pushing sliding block through the circular column platform.

6. The device for bending and deforming a flexible electronic device according to claim 5, characterized in that: The scissor-type mechanism is provided with four connecting parts of equal length. The sliding groove stroke on the U-shaped bottom plate and the sliding groove stroke on the chair-shaped guide block are equal to the length of a single connecting part of the scissor-type mechanism. The process from folding to fully unfolding of the scissor-type mechanism can make the y-direction displacement of the chair-shaped guide block and the core shaft clamping end close to twice the sliding groove stroke on the U-shaped bottom plate; when the scissor-type mechanism is fully unfolded, it can just make the chair-shaped guide block reach the end of the U-shaped bottom plate, at which time the maximum y-direction displacement is achieved.

7. The device for bending and deforming a flexible electronic device according to claim 1, characterized in that: The mandrel clamping end includes: a mandrel clamping platform and a telescopic rod, a mandrel chuck and a mandrel arranged in sequence therein, wherein: a pre-tightening spring is provided on the outside of the telescopic rod, the mandrel is clamped by the mandrel clamping platform and the mandrel chuck, a through hole corresponding to the Y-guide rail and the connecting rod is provided below the mandrel clamping platform, the pre-tightening spring is always in a compressed state, when the mandrel is not placed, the mandrel chuck is subjected to pressure and pressed against the mandrel clamping platform, and when the mandrel is placed, the pressure on the mandrel chuck can clamp the mandrel.

8. The device for bending and deforming a flexible electronic device according to claim 7, characterized in that: The connecting rod is provided with threads at both ends, one end is connected to the chair-shaped guide block, and the other end is connected to the mandrel clamping platform, and the mandrel clamping platform is fixed on the connecting rod by a nut; The y-guide rail extends to the end of the U-shaped base plate and, together with the roller, limits the rotation of the chair-shaped guide block. When performing a combined tensile and bending deformation test, the downward force of the flexible electronic device on the core shaft is transmitted to the y-guide rail, reducing the influence of the force on the motion mechanism.

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