CN114544490A

CN114544490A - Simulation atress frock and ageing behavior detection device

Info

Publication number: CN114544490A
Application number: CN202210153612.9A
Authority: CN
Inventors: 吕自豪; 余立超; 邱义强
Original assignee: Fuyao Glass Industry Group Co Ltd
Current assignee: Fuyao Glass Industry Group Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-05-27
Anticipated expiration: 2042-02-18
Also published as: CN114544490B

Abstract

The invention relates to a stress simulation tool and an aging performance detection device, wherein a positive tension force application module, a shearing force application module and a moment force application module are arranged, so that the corresponding composite stress condition can be simulated according to the stress condition of a piece to be tested in actual use, for example, the stress condition of the piece to be tested under the positive tension and the shearing force simultaneously and the stress condition of the piece to be tested under the shearing force and the moment simultaneously can be simulated. And then the test result of the final experimental stage can be consistent with the result fed back in the actual use process, and the condition that the experimental stage is qualified in verification and the bonding performance is poor in actual use is avoided.

Description

Simulation atress frock and ageing behavior detection device

Technical Field

The invention relates to the technical field of performance detection, in particular to a stress simulation tool and an aging performance detection device.

Background

The adhesion is an important means for assembling and connecting parts such as an external decorative plate and the like in a vehicle, and the adhesion performance of the adhesive is generally tested in an experimental stage so as to judge whether the adhesion requirement can be met in a complicated and variable natural environment. Specifically, the accessory adhered with the adhesive is placed in an aging device simulating a natural environment to perform an aging test, and the state of the vehicle when used in the natural environment is simulated. And then taking out the accessory simulated for a period of time in the aging device, and carrying out adhesion performance tests such as creep property or fracture resistance.

And along with the continuous development in vehicle field, through gluing the stress condition complicacy of spare parts such as fixed exterior plate of mode in the vehicle, general ageing behavior test process can't really reflect the stress condition when assembling and using. Therefore, the adhesive has the problem of being qualified in the experimental stage, but poor in adhesive performance in actual use.

Disclosure of Invention

Aiming at the problems, the invention provides a stress simulation tool and an aging performance detection device, which can simulate various stress conditions, so that the experimental environment can be more suitable for the conditions in actual assembly and use, and the conditions that the experimental stage is qualified in verification and the bonding performance is poor in actual use are avoided.

A simulated force tool comprising:

a fixing assembly for mounting and fixing a to-be-measured object in a space defined by an X-axis, a Y-axis and a Z-axis perpendicular to each other;

the positive tension force application module is arranged on the fixing assembly and used for applying positive tension to the piece to be tested, and the direction of the positive tension is the Z direction;

the shearing force application module is arranged on the fixing component and used for applying shearing force to the piece to be tested, and the direction of the shearing force is X direction;

and the moment force application module is used for applying moment to the piece to be tested, and the moment is positioned in a plane defined by the Y axis and the Z axis.

In one embodiment, the fixing assembly includes a hollow housing, the housing includes a top plate and two side plates connected to the top plate, the two side plates are arranged at an interval, an interval direction of the two side plates is parallel to the X axis, the object to be detected is located between the two side plates, the shearing force application module is disposed on one of the side plates, and the positive tension force application module is disposed on the top plate.

In one embodiment, the moment force application module comprises a suspension rod and a weight, one end of the suspension rod can be installed on the surface, opposite to the top plate, of the piece to be tested, the other end of the suspension rod extends towards the direction close to the top plate, the weight can be hung on the suspension rod, and the axis of the suspension rod and the gravity center of the weight are located in the plane defined by the Y axis and the Z axis.

In one embodiment, a strip-shaped hole is formed in the top plate, the length direction of the strip-shaped hole is parallel to the Y axis, and one end, far away from the piece to be tested, of the suspension rod can penetrate through the strip-shaped hole;

and/or the suspension rod can be detachably arranged on the piece to be tested.

In one embodiment, the positive tension force application module comprises a first adjusting screw, a nut and a first extension spring, the first adjusting screw is inserted into the strip-shaped hole along the Z direction, the nut is sleeved outside the first adjusting screw and acts on the top plate to apply an acting force which is far away from the piece to be tested along the Z direction to the first adjusting screw, the first extension spring can act between the first adjusting screw and the piece to be tested, and the extension direction of the first extension spring is parallel to the Z axis.

In one embodiment, the top plate is further provided with a first graduated scale, and the graduation direction of the first graduated scale is parallel to the Z axis.

In one embodiment, the surface of one side plate facing the other side plate is an inner side surface, the inner side surfaces of the two side plates are both provided with a fixed block, the fixed block is provided with a slot into which a to-be-tested piece is inserted, the depth direction of the slot is parallel to the X axis, the slot wall of the slot is provided with a buffer layer, and when the to-be-tested piece is subjected to positive pulling force, the buffer layer can be abutted between the to-be-tested piece and the slot wall of the slot.

In one embodiment, the shear force application module comprises a second extension spring, a pushing piece, a second adjusting screw and a screwing piece in threaded fit on the second adjusting screw, the second adjusting screw is arranged on a side plate of the shell, and the axial direction of the second adjusting screw is parallel to the X axis;

the pushing piece is arranged on the side plate of the shell in a sliding mode, and the sliding direction of the pushing piece is parallel to the X axis;

the pushing piece and the screwing piece interact, and when the screwing piece rotates relative to the second adjusting screw rod, acting force approaching to the piece to be tested along the X direction can be applied to the pushing piece;

the second extension spring acts between the pushing piece and the piece to be tested, and the extension direction of the second extension spring is parallel to the X axis.

In one embodiment, a second graduated scale is further arranged on one of the two side plates of the shell, wherein the second adjusting screw is arranged on the other one of the two side plates of the shell, and the graduation direction of the second graduated scale is parallel to the X axis.

In one embodiment, the simulated stress tool further comprises a base, the shell is rotatably arranged on the base, and the axis of the shell rotating relative to the base is parallel to the X axis;

a locking assembly, the housing being rotatable relative to the base when the locking assembly is in an unlocked state, the locking assembly acting between the base and the housing to prevent rotation of the housing relative to the base when the locking assembly is in a locked state.

In one embodiment, the base comprises a bottom plate and a vertical plate, the vertical plate is arranged on the bottom plate, the shell is rotatably arranged on the vertical plate, an axis of rotation of the shell relative to the vertical plate is parallel to the X axis, and the shell is suspended above the bottom plate.

In one embodiment, the vertical plate is provided with an arc-shaped strip hole arranged along an arc-shaped path, the center of the arc-shaped path is positioned on an axis of the shell rotating relative to the vertical plate, a handle is arranged on the position, corresponding to the arc-shaped strip hole, of the shell, the handle part penetrates through the arc-shaped strip hole and is positioned on one side, away from the shell, of the vertical plate, and the handle can slide in the arc-shaped strip hole.

An aging performance detection device comprises the simulation stress tool.

The normal tension force application module, the shearing force application module and the moment force application module are arranged in the simulation stress tool and the aging performance detection device, so that the corresponding composite stress condition can be simulated according to the stress condition of the piece to be tested in actual use, for example, the stress condition of the piece to be tested in the process of simultaneously receiving the normal tension force and the shearing force and the stress condition of the piece to be tested in the process of simultaneously receiving the shearing force and the moment can be simulated. And then the test result of the final experimental stage can be consistent with the result fed back in the actual use process, and the condition that the experimental stage is qualified in verification and the bonding performance is poor in actual use is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 to 3 are schematic structural views of the simulated stress tool at different angles;

fig. 4 is a schematic structural view of the simulated stress tool when the housing rotates 90 degrees;

fig. 5 is a schematic structural diagram of the simulated stress tool when the housing rotates 135 °.

Description of reference numerals:

10. simulating a stress tool; 11. a fixing assembly; 111. a top plate; 1111. a strip-shaped hole; 112. a side plate; 113. a back plate; 1131. adding a shearing force application module; 114. a fixed block; 1141. a slot; 1142. a buffer layer; 12. a positive tension force application module; 121. a first adjusting screw; 122. a nut; 123. a first extension spring; 124. a first scale; 13. a shear force application module; 131. a second extension spring; 132. pushing the workpiece; 133. a second adjusting screw; 134. a screwing member; 135. a second scale; 14. a moment force application module; 141. a suspension rod; 142. a weight; 143. a handle; 144. a locking assembly; 15. a base; 151. a base plate; 152. a vertical plate; 1521. arc-shaped strip holes; 20. a piece to be tested; 21. a substrate; 22. a sample piece; 23. and (3) an adhesive.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1-3, in one embodiment, a simulated force tool 10 is provided, comprising:

a fixing assembly 11, wherein the fixing assembly 11 is used for installing and fixing a piece to be tested 20, and the piece to be tested 20 is positioned in a space defined by an X axis, a Y axis and a Z axis which are perpendicular to each other;

the positive tension force application module 12 is arranged on the fixing component 11 and used for applying positive tension to the to-be-tested piece 20, and the direction of the positive tension is the Z direction;

the shearing force application module 13 is arranged on the fixing component 11 and used for applying a shearing force to the piece to be tested 20, and the direction of the shearing force is X direction;

and the moment force application module 14 is used for applying moment to the piece to be tested 20, and the moment is positioned in a plane defined by the Y axis and the Z axis.

The piece 20 to be measured is an integral body formed by two elements adhered by the adhesive 23, and the surfaces of the two elements coated with the adhesive are defined as bonding surfaces. The direction of the positive pulling force is perpendicular to this bonding surface, so that one of the elements has a tendency to move away from the other element. The direction of the shear force is parallel to the bonding surface such that one of the elements has a tendency to be translationally misaligned relative to the other element. The moment causes one of the elements to have a tendency to rotationally peel relative to the other element.

Specifically, as shown in fig. 1 and 2, the device under test 20 includes a base material 21, a sample 22, and an adhesive 23 adhered between the base material 21 and the sample 22. The bonding surface of the base material 21 and the bonding surface of the sample 22 are both flat surfaces. Preferably, the bonding surface of the base material 21 and the bonding surface of the sample 22 are parallel to each other.

During the use, the substrate 21 is fixed on the fixed subassembly 11, and positive tension force application module 12, shearing force application module 13 and moment force application module 14 all can be used on sample 22. Thereby detecting whether the sample 22 is adhered to the base material 21 by the adhesive 23.

During the detection of the tool, the positive tension force application module 12, the shearing force application module 13 and the moment force application module 14 can be used independently. The positive tension force application module 12 and the shearing force application module 13 can be used simultaneously to simulate the actual working condition that the piece to be tested 20 is subjected to the positive tension and the shearing force simultaneously. Similarly, the shearing force application module 13 and the moment application module 14 can also be used simultaneously to simulate the actual working condition that the to-be-tested piece 20 is subjected to shearing force and moment simultaneously. The combined stress condition is more consistent with the stress condition of the to-be-detected piece 20 in actual use, and the test result detected on the basis is more consistent with the actual condition, so that the condition that the experimental stage is qualified in verification and the bonding performance is poor in actual use is avoided.

The moment is located in a plane defined by the Y axis and the Z axis and is perpendicular to the direction of the shearing force, so that the shearing force applied to the device to be tested 20 only comes from the shearing force application module 13, and the force applied by the moment application module 14 does not affect the shearing force applied to the device to be tested 20.

As shown in fig. 1 to 3, in particular, in some embodiments, the fixing assembly 11 includes a hollow housing, the housing includes a top plate 111 and two side plates 112 connected to the top plate 111, the two side plates 112 are oppositely spaced, and the spacing direction of the two side plates 112 is parallel to the X axis. The to-be-tested piece 20 is located between the two side plates 112, the shearing force application module 13 is disposed on one of the side plates 112, and the positive tension force application module 12 is disposed on the top plate 111.

The piece to be tested 20 is installed and fixed in the hollow cavity formed by the shell, and the shearing force application module 13 and the positive tension force application module 12 can respectively apply acting force to the piece to be tested 20 from two mutually perpendicular directions.

Alternatively, the fixing component 11 may also be in other shapes or other structural forms, as long as it can provide support for the positive tension force application module 12 and the shearing force application module 13, so that the device under test 20 fixed on the fixing component 11 can be subjected to positive tension and shearing force.

Further specifically, in one embodiment, as shown in fig. 1 and 2, the positive tension force application module 12 includes a first adjusting screw 121, a nut 122, and a first extension spring 123. The first adjusting screw 121 is slidably disposed on the fixing component 11, and a sliding direction of the first adjusting screw 121 relative to the fixing component 11 is parallel to the Z axis. The nut 122 is sleeved outside the first adjusting screw 121 and acts on the fixing component 11 to apply an acting force to the first adjusting screw 121, which is far away from the to-be-measured part 20 along the Z direction. The first extension spring 123 acts between the first adjusting screw 121 and the device under test 20, and the extension direction of the first extension spring 123 is parallel to the Z axis.

In actual use, the nut 122 is screwed relative to the first adjusting screw 121, and the distance between the first adjusting screw 121 and the object 20 to be tested is adjusted, so as to adjust the length of the first extension spring 123, and thus apply a positive pulling force of a required magnitude to the object 20 to be tested.

Specifically, the fixing assembly 11 includes the top plate 111, and a through hole for the first adjusting screw 121 to pass through is formed in the top plate 111, and an axial direction of the through hole is parallel to the Z axis, so that the first adjusting screw 121 can slide relative to the top plate 111.

Further, the nut 122 may be located on a side of the top plate 111 facing away from the object 20, and the nut 122 abuts against the top plate 111. The nut 122 is in threaded fit with the first adjusting screw 121, and the nut 122 is limited at one side of the top plate 111 facing away from the piece to be measured 20, so that the first adjusting screw 121 can bear the pulling force from the first extension spring 123.

Alternatively, the nut 122 may be located on a side of the top plate 111 facing the object 20, but in this case, the nut 122 cannot move in the Z direction with respect to the top plate 111, and the nut 122 can only rotate with respect to the top plate 111 around the axis of the first adjusting screw 121. In this way, the nut 122 can provide a limit for the first adjusting screw 121, so that the first adjusting screw 121 can bear the pulling force from the first extension spring 123.

Further, in some embodiments, as shown in fig. 1 to 3, a first scale 124 is further disposed on the top plate 111, and a scale direction of the first scale 124 is parallel to the Z axis.

The distance of movement of the first adjustment screw 121 relative to the top plate 111 in a direction parallel to the Z-axis can be recorded by the first scale 124. After the positive pulling force F1 required to be exerted on the device under test 20 is known according to the detection standard, the value x is obtained according to F1 ═ k1 × x (where k1 is the elastic coefficient of the first extension spring 123, and x is the deformation amount of the first extension spring 123). The nut 122 is then adjusted according to the value x, so that the deformation of the first extension spring 123 for applying a positive pulling force to the device under test 20 is x length.

In actual operation, there may be a situation that the positive tension force application module 12 needs to be calibrated to zero first. For example, the object 20 to be tested has a certain moving space in the fixing assembly 11, and the first extension spring 123 needs to generate a certain deformation x1 to provide a pulling force for the sample 22, so that the substrate 21 moves to a fixed position, and then the substrate 21 cannot move until the pulling force in the Z direction is continuously applied. When the deformation x1 of the first extension spring 123 is recorded, the scale corresponding to the first adjustment screw 121 is the "zero point" position. On the basis, the nut 122 is adjusted according to the magnitude of the positive pulling force F1 required to be applied, so that the first adjusting screw 121 is further displaced by x length on the basis of the 'zero point' position, and the first extension spring 123 is deformed by x length.

Further, in some embodiments, as shown in fig. 4 and 5, the moment force application module 14 includes a suspension rod 141 and a weight 142, one end of the suspension rod 141 can be mounted on a surface of the device under test 20 opposite to the top plate 111, the other end of the suspension rod 141 extends in a direction close to the top plate 111, the weight 142 can be suspended on the suspension rod 141, and an axis of the suspension rod 141 and a center of gravity of the weight 142 are located in a plane defined by the Y axis and the Z axis.

The moment can be adjusted to a certain extent by adjusting the weight of the weight 142 and the distance between the position where the weight 142 is hung and the piece 20 to be measured. Note that, when a moment is applied, the direction of gravity of the weight 142 is not parallel to the axial direction of the suspension rod 141. Specifically, how to make the gravity direction of the weight 142 not parallel to the axial direction of the suspension rod 141 can be achieved by an experimenter actively adjusting the angle of the fixing component 11.

When different working conditions are simulated, the torque magnitude may be different, and based on this, the suspension rod 141 with multiple lengths can be designed, so that the suspension rod 141 with a proper length can be selected for use according to actual measurement requirements. Similarly, the weight 142 can be designed into various specifications, and the weights 142 with different specifications have different weights.

The suspension rod 141 is detachably mounted on the device under test 20. When the moment is required to be applied, the suspension rod 141 of the required length is then fitted on the member to be measured 20. The length of the hanger bar 141 is greater as shown in fig. 4 than the length of the hanger bar 141 as shown in fig. 5.

The selected suspension rod 141 is prevented from interfering with the top plate 111 due to its too long length. A strip-shaped hole 1111 may be further disposed on the top plate 111, and one end of the suspension rod 141 far away from the dut 20 can pass through the strip-shaped hole 1111. The length direction of the strip-shaped hole 1111 is parallel to the Y axis.

When moment is applied, the axis of the suspension rod 141 and the gravity direction of the weight 142 are not parallel, so that the suspension rod 141 slightly shakes or deforms under the action of gravity, and the arrangement of the strip-shaped holes 1111 can break through the limitation of the top plate 111 on the length of the suspension rod 141, avoid the limitation of the top plate 111 on the shaking or deformation of the suspension rod 141, and improve the detection accuracy.

The through hole for the first adjusting screw 121 to pass through provided on the top plate 111 may be the strip-shaped hole 1111. Therefore, there is an embodiment, as shown in fig. 1 to 3, the positive tension force application module 12 includes a first adjusting screw 121, a nut 122 and a first extension spring 123, the first adjusting screw 121 is inserted into the strip-shaped hole 1111 along the Z direction, the nut 122 is sleeved outside the first adjusting screw 121 and acts on the top plate 111 to apply a force away from the dut 20 along the Z direction to the first adjusting screw 121, the first extension spring 123 can act between the first adjusting screw 121 and the dut 20, and the extension direction of the first extension spring 123 is parallel to the Z axis.

Specifically, in some embodiments, as shown in fig. 1 and fig. 2, a surface of one side plate 112 facing the other side plate 112 is an inner side surface, the inner side surfaces of the two side plates 112 are both provided with a fixing block 114, the fixing block 114 is provided with a slot 1141 for inserting the to-be-tested piece 20, and a depth direction of the slot 1141 is parallel to the X axis. Two ends of the to-be-tested member 20 are respectively inserted into the two slots 1141, specifically, two ends of the substrate 21 of the to-be-tested member 20 are respectively inserted into the two slots 1141. The sample 22 is located on one side of the substrate 21 close to the top plate 111.

In some cases, for installation convenience, the height of the slot 1141 in the Z direction is generally greater than the thickness of the substrate 21, so that the substrate 21 has a certain moving space in the slot 1141. The zero calibration step of the positive tension forcing module 12 is to ensure that the base material 21 cannot move in the direction approaching the first tension spring 123 in the Z direction by abutting the base material 21 against the side wall of the slot 1141 before the positive tension is actually calculated.

Therefore, as shown in fig. 1, after the end of the base material 21 is inserted into the slot 1141, the nut 122 is adjusted first, the first extension spring 123 deforms x1 to a certain extent, the device under test 20 moves to a position where the base material 21 abuts against the side wall of the slot 1141 under the tensile force of the first extension spring 123, and at this time, the position on the first scale 124 corresponding to the first adjusting screw 121 is a "zero point" position.

Further, as shown in fig. 1 and fig. 2, a buffer layer 1142 is disposed on a groove wall of the slot 1141, and when the to-be-tested member 20 is under positive tension, the buffer layer 1142 can be pressed between the to-be-tested member 20 and the groove wall of the slot 1141.

Specifically, the buffer layer 1142 may be foam.

Further, similar to the structure of the positive tension force application module 12, in some embodiments, as shown in fig. 1 to 3, the shear force application module 13 includes a second extension spring 131, a pushing member 132, a second adjusting screw 133, and a screw 134 screwed on the second adjusting screw 133, the second adjusting screw 133 is disposed on the side plate 112 of the housing, and the axial direction of the second adjusting screw 133 is parallel to the X axis;

the pushing piece 132 is slidably arranged on the side plate 112 of the shell, and the sliding direction is parallel to the X axis;

the pushing piece 132 interacts with the screwing piece 134, and when the screwing piece 134 rotates relative to the second adjusting screw 133, a force which is close to the piece to be tested 20 along the direction X can be applied to the pushing piece 132;

the second extension spring 131 acts between the pushing member 132 and the member to be tested 20, and the extension direction of the second extension spring 131 is parallel to the X axis.

The screw 134 functions similarly to the nut 122, and when the screw 134 is rotated relative to the second adjusting screw 133, the position where the screw 134 engages with the second adjusting screw 133 changes, and this change is transmitted to the pushing member 132, so that the pushing member 132 moves relative to the side plate 112 in a direction parallel to the X axis, thereby adjusting the amount of expansion and contraction of the second tension spring 131.

Similarly, after learning the magnitude F2 of the required applied shearing force, a y value is obtained according to the formula F2 — k2 × y (where k2 is the elastic coefficient of the second tension spring 131, and y is the deformation amount of the second tension spring 131). The screw 134 is then adjusted according to the value of y.

Similarly, if the device under test 20 is installed in the fixing assembly 11 and has a certain moving space in the direction parallel to the X axis, the shearing force application module 13 may also have a zero calibration process. The specific zero calibration process is similar to the zero calibration process of the positive tension force application module 12, and is not described herein again.

As shown in fig. 1 and 3, in one embodiment, a second scale 135 is further disposed on one of the two side plates 112 of the housing, on which the second adjusting screw 133 is disposed, and a scale direction of the second scale 135 is parallel to the X axis. The amount y of deformation of the second extension spring can be precisely checked through the second scale 135.

Further, as shown in fig. 3, the housing may further include a back plate 113, and an additional shear force application module 1131 is disposed on the back plate 113. When the simulation of the shearing force and the positive pulling force is required, the additional shearing force application module 1131 on the back plate 113 may be used to apply the shearing force to the device under test 20. The additional shear force application module 1131 has a structure similar to that of the shear force application module 13 disposed on the side plate 112.

Further, it is mentioned that the magnitude of the moment is related to the weight of the weight 142 and the distance between the position where the weight 142 is hung and the object 20 to be measured. According to the moment as the vector product of the force and the moment arm, the magnitude of the moment is related to the angle formed by the gravity direction of the weight 142 and the axial direction of the suspension rod 141.

Based on this, in some embodiments, as shown in fig. 1 to 5, the simulated stress tool 10 further includes a base 15, the housing is rotatably disposed on the base 15, and an axis of rotation of the housing relative to the base 15 is parallel to the X-axis;

a locking assembly 144, said housing being rotatable relative to said base 15 when said locking assembly 144 is in an unlocked condition, said locking assembly 144 acting between said base 15 and said housing to prevent rotation of said housing relative to said base 15 when said locking assembly 144 is in a locked condition.

As shown in fig. 1, in the initial state, the bonding surface of the device under test 20 is parallel to the horizontal plane. When it is desired to simulate an applied torque situation, the housing is rotated relative to the base 15, as shown in fig. 4 and 5, and locked by the locking assembly 144 after the housing has been rotated to the target position. Fig. 4 is a schematic structural diagram of the simulated stress tool 10 when the housing rotates until the gravity direction of the weight 142 is parallel to the bonding surface, and at this time, the gravity direction of the weight 142 is perpendicular to the axial direction of the suspension rod 141. Fig. 5 is a schematic structural view of the simulated stress tool 10 when the housing rotates to an angle of 45 ° between the gravity direction of the weight 142 and the adhesion surface, and at this time, an included angle between the gravity direction of the weight 142 and the axial direction of the suspension rod 141 is 135 °.

Specifically, in some embodiments, as shown in fig. 2, the locking assembly 144 includes a locking bolt disposed on the base 15, and when the base 15 needs to be fixed, the locking bolt is screwed so that the locking bolt abuts against the housing, and the housing is prevented from rotating relative to the base 15 by friction.

Of course, the locking assembly 144 may have other configurations. For example, the locking assembly 144 may be a suction cup to secure the housing in a locked state.

Further, in some embodiments, as shown in fig. 1 to 5, the base 15 includes a bottom plate 151 and a vertical plate 152, the vertical plate 152 is disposed on the bottom plate 151, the housing is rotatably disposed on the vertical plate 152, and an axis of rotation of the housing relative to the vertical plate 152 is parallel to the X-axis, and the housing is suspended above the bottom plate 151. When only positive pulling and shearing forces need to be applied, the top plate 111 of the housing is parallel to the bottom plate 151 of the base 15, as shown in fig. 1-3. When the housing is suspended above the bottom plate 151, the bottom plate 151 does not interfere with the housing when the housing rotates relative to the vertical plate 152.

Specifically, as shown in fig. 1-5, the risers 152 can be parallel to and conform to the side plates 112. When the shell rotates relative to the vertical plate 152, the side plate 112 is parallel to the vertical plate 152.

In some embodiments, one side plate 112 of the housing is directly rotatably connected to the vertical plate 152, and the other side plate 112 of the housing is provided with the shear force application module 13.

Further, as shown in fig. 2, in an embodiment, an arc-shaped hole 1521 is formed in the vertical plate 152, the center of the arc-shaped path is located on an axis of the casing rotating relative to the vertical plate 152, a handle 143 is disposed on the casing at a position corresponding to the arc-shaped hole 1521, the handle 143 partially passes through the arc-shaped hole 1521 and is located on a side of the vertical plate 152 facing away from the casing, and the handle 143 can slide in the arc-shaped hole 1521.

When the shell needs to be rotated, the handle 143 is held, and the handle 143 is rotated along the arc-shaped path.

As shown in fig. 4 and 5, the riser 152 may also be provided with an arc scale, and the arc scale is disposed along the edge of the arc bar hole 1521.

Further, in another embodiment, a device for detecting aging performance is provided, which includes the above simulated stress tool 10.

The corresponding composite stress condition can be simulated according to the actual use condition of the to-be-measured piece 20, for example, the stress condition of the to-be-measured piece 20 under the conditions of normal tension and shearing force and the stress condition of the to-be-measured piece 20 under the conditions of shearing force and moment can be simulated. After the piece to be tested 20 is installed in the simulated stress tool 10, a required acting force is applied to the piece to be tested 20. And then placing the simulated stress tool 10 provided with the piece to be tested 20 into an environment experiment box, carrying out different aging experiments, taking out the piece to be tested 20 from the simulated stress tool 10 after the experiment is finished, and carrying out mechanical property test to finally obtain the bonding property of the bonding machine under the aging load condition.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a simulation atress frock which characterized in that includes:

2. The simulated stress tool according to claim 1, wherein the fixing assembly comprises a hollow shell, the shell comprises a top plate and two side plates which are connected with the top plate, the two side plates are arranged at intervals, the interval direction of the two side plates is parallel to the X axis, the to-be-measured piece is positioned between the two side plates, the shearing force application module is arranged on one of the side plates, and the positive tension force application module is arranged on the top plate.

3. The simulated stress tool according to claim 2, wherein the moment force application module comprises a suspension rod and a weight, one end of the suspension rod can be mounted on a surface, opposite to the top plate, of the piece to be tested, the other end of the suspension rod extends towards a direction close to the top plate, the weight can be suspended on the suspension rod, and the axis of the suspension rod and the gravity center of the weight are located in a plane defined by the Y axis and the Z axis.

4. The simulated stress tool according to claim 3, wherein a strip-shaped hole is formed in the top plate, the length direction of the strip-shaped hole is parallel to the Y axis, and one end, far away from the piece to be tested, of the suspension rod can penetrate through the strip-shaped hole;

and/or the suspension rod can be detachably arranged on the piece to be tested.

5. The simulated stress tool according to claim 4, wherein the positive tension force application module comprises a first adjusting screw, a nut and a first extension spring, the first adjusting screw is inserted into the strip-shaped hole along the Z direction, the nut is sleeved outside the first adjusting screw and acts on the top plate to apply an acting force which is far away from the piece to be tested along the Z direction to the first adjusting screw, the first extension spring can act between the first adjusting screw and the piece to be tested, and the extension direction of the first extension spring is parallel to the Z axis.

6. The simulated stress tool of claim 5, wherein the top plate is further provided with a first graduated scale, and the graduated direction of the first graduated scale is parallel to the Z axis.

7. The tool for simulating stress according to claim 2, wherein the surface of one side plate facing the other side plate is an inner side surface, a fixed block is arranged on each of the inner side surfaces of the two side plates, a slot into which a to-be-tested member is inserted is formed in each fixed block, the depth direction of each slot is parallel to the X axis, a buffer layer is arranged on the slot wall of each slot, and the buffer layer can be pressed between the to-be-tested member and the slot wall when the to-be-tested member is subjected to positive tensile force.

8. The simulated stress tool according to claim 2, wherein the shear force application module comprises a second extension spring, a pushing piece, a second adjusting screw and a screwing piece in threaded fit with the second adjusting screw, the second adjusting screw is arranged on a side plate of the shell, and the axial direction of the second adjusting screw is parallel to the X axis;

9. A tool for simulating stress according to claim 8, wherein a second graduated scale is further provided on one of the two side plates of the housing on which the second adjusting screw is provided, and the graduation direction of the second graduated scale is parallel to the X-axis.

10. The simulated force tool of claim 2 further comprising a base, wherein the housing is rotatably disposed on the base, and an axis of rotation of the housing relative to the base is parallel to the X-axis;

11. The simulated stress tool of claim 10 wherein the base comprises a bottom plate and a riser, the riser is disposed on the bottom plate, the housing is rotatably disposed on the riser, an axis of rotation of the housing relative to the riser is parallel to the X-axis, and the housing is suspended above the bottom plate.

12. The simulated stress tool of claim 11, wherein the riser is provided with an arc-shaped hole along an arc-shaped path, the center of the arc-shaped path is located on an axis of the shell rotating relative to the riser, the shell is provided with a handle at a position corresponding to the arc-shaped hole, the handle partially penetrates through the arc-shaped hole and is located on a side of the riser departing from the shell, and the handle can slide in the arc-shaped hole.

13. An aging performance detection device, characterized by comprising the simulated stress tool of any one of claims 1 to 12.