CN219475182U - Auxiliary jig for shear force test - Google Patents
Auxiliary jig for shear force test Download PDFInfo
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- CN219475182U CN219475182U CN202320643715.3U CN202320643715U CN219475182U CN 219475182 U CN219475182 U CN 219475182U CN 202320643715 U CN202320643715 U CN 202320643715U CN 219475182 U CN219475182 U CN 219475182U
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Abstract
The application discloses auxiliary jig for shear force test relates to the technical field of shear force test, and the auxiliary jig for shear force test comprises a base, a moving plate and a pressing piece, wherein the base is used for placing and positioning a workpiece; the moving plate is provided with a reference surface and is used for moving relative to the base along a second direction so as to align the reference surface with a material combination line of the workpiece, and after the alignment, the moving plate is used for propping against the workpiece on the base; the abutting part is movably arranged on the moving plate and can synchronously move along the second direction along with the moving plate, a preset distance is reserved between the abutting part and the reference surface in the second direction, and during testing, the abutting part is used for moving along the first direction so as to abut against the position of the joint of different materials of the workpiece at a preset distance, so that the shearing force of the workpiece is tested. The auxiliary shear force test fixture can solve the problem that the position of the pressing part for applying pressure to the workpiece is inaccurate due to factors such as manufacturing tolerance, assembly error and the like, thereby ensuring that shear force test data are accurate and effective.
Description
Technical Field
The application relates to the technical field of shear force testing, in particular to an auxiliary shear force testing jig.
Background
It is known that performance-like testing, such as shear force testing, of the junction of two materials is involved in the manufacture of electronic products (cell phones, tablets, etc.).
In the prior art, in the process of testing the shearing force of the composite material of the electronic product, due to factors such as manufacturing tolerance, assembly error and the like, the detection difficulty is high, the situation of inaccurate position of the pressing material occurs, and finally, the test data is distorted.
Disclosure of Invention
The utility model aims at providing a shearing force test auxiliary jig can avoid appearing pressing the inaccurate condition in position to the material to guarantee that shearing force test data is accurate effective.
For realizing the above-mentioned purpose, this application provides a shear force test auxiliary jig for fixed work piece to carry out the shear force test to the different material junctions of work piece, the auxiliary jig of shear force test includes:
the base is used for placing and positioning the workpiece;
the moving plate is provided with a reference surface, the reference surface extends along a first direction, and is used for pressing a workpiece on the base and moving relative to the base along a second direction so as to align the joint of different materials of the reference surface and the workpiece;
the pressing piece is movably arranged on the moving plate, has a preset distance from the reference surface in the second direction and is used for moving along the first direction so as to press the position of the joint of different materials of the workpiece at a preset distance to perform a shear force test.
In some embodiments, the pressing member is provided with a visual structure, and the reference surface is provided on the visual structure.
In some embodiments, the visual structure includes a visual window positioned between two datum surfaces on the visual structure, the visual window being configured to view whether the corresponding datum surfaces are aligned with the workpiece at the different material junction.
In some embodiments, the visual structure includes a bevel, the distance of the bevel from the base tapering in a direction approaching the datum plane.
In some embodiments, the moving plate is provided with a mounting structure, the mounting structure is provided with a mounting hole, and the pressing piece is movably embedded in the mounting hole.
In some embodiments, the mounting hole has an inner wall proximate the datum surface and spaced from the datum surface in the second direction by a distance in the range of 0.05-0.1mm.
In some embodiments, the shear force test auxiliary fixture further comprises a motion module, wherein the motion module is connected with the motion plate to drive the motion plate to move along the second direction.
In some embodiments, the shear force test auxiliary fixture further comprises a first fixing module, wherein the first fixing module is arranged on the base and used for pressing the moving plate to fix the moving plate;
the first fixed module includes:
the cover plate is arranged on one side of the moving plate, which is away from the base, and is connected with the moving plate;
the first locking mechanism is connected with the cover plate and the base and used for adjusting the distance between the cover plate and the base so that the cover plate presses the moving plate.
In some embodiments, the base is provided with a pair of threaded holes, the cover plate is provided with a pair of through holes, and the first locking mechanism comprises a pair of locking screws, and any locking screw is in threaded connection with the corresponding threaded hole after passing through the corresponding through hole.
In some embodiments, the shear force test auxiliary fixture further comprises a second fixing module, wherein the second fixing module is arranged on the base and is used for abutting against the workpiece so as to fix the workpiece on the base;
the second fixing module includes:
the positioning pin is arranged on the base and is used for abutting against one side of the workpiece;
the second locking mechanism comprises a locking piece, and the locking piece is used for abutting against the other side of the workpiece.
Compared with the background art, the auxiliary fixture for shear force test is used for fixing a workpiece to perform shear force test on the joint of different materials of the workpiece, the workpiece can be made of a first material and a second material, and a material joint line is arranged on the joint of the first material and the second material, so that the shear force test is performed on the joint of different materials of the workpiece, namely, the position of the material joint line on the workpiece is subjected to the shear force test. Specifically, the auxiliary tool for shear force test comprises a base, a moving plate and a pressing piece. The base is used for placing and positioning the workpiece; the moving plate is provided with a datum plane extending along a first direction and is used for moving relative to the base along a second direction so as to align the datum plane with a material bonding line of the workpiece, and in addition, after the datum plane is aligned with the material bonding line of the workpiece, the moving plate is used for pressing the workpiece on the base; the abutting part is movably arranged on the moving plate, the abutting part can synchronously move along the second direction along with the moving plate, and the abutting part and the reference surface have a preset distance in the second direction. It can be appreciated that by adjusting the movement of the moving plate in the second direction, it is ensured that the reference surface of the moving plate is aligned with the bonding line of the material on the workpiece, and at the same time, since the pressing member is mounted on the moving plate and the pressing member and the reference surface have a predetermined distance in the second direction, the effective distance between the pressing member and the bonding line of the material on the workpiece can be ensured after the reference surface of the moving plate is aligned with the bonding line of the material on the workpiece, so that, during testing, the pressing member does not press against another material beyond the bonding line of the material, and the pressing member is not caused to press the material too far from the bonding line of the material. In conclusion, the problem that the position of the pressing piece applying pressure to the workpiece is inaccurate due to factors such as manufacturing tolerance, assembly error and the like can be solved by adopting the setting mode, so that accurate and effective shear force test data are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic structural diagram of an auxiliary tool for shear force test in an embodiment of the present application;
FIG. 2 is another schematic view of the auxiliary fixture for shear force test shown in FIG. 1;
FIG. 3 is an enlarged view of part of the portion A of FIG. 1;
FIG. 4 is a partial top view of the kinematic plate of FIG. 3;
fig. 5 is a schematic structural diagram of a workpiece in the embodiment of the application.
Wherein:
100-auxiliary jig for shear force test;
110-a base and 111-a threaded hole;
120-motion plate, 121-datum, 122-mounting structure, 1221-mounting hole, 123-visual structure, 1231-visual window, 1232-bevel;
130-pressing piece;
140-a motion module;
150-a first fixed module, 151-a cover plate, 1511-a through hole, 152-a first locking mechanism and 1521-a locking screw;
160-second fixing module, 161-locating pin, 162-second locking mechanism, 1621-locking member;
200-workpiece;
210-a first material;
220-a second material;
230-material bond line.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In order to better understand the aspects of the present application, a further detailed description of the present application will be provided below with reference to the accompanying drawings and detailed description.
The terms "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.
Referring to fig. 1 to 5, the auxiliary fixture 100 for testing shear force provided in the embodiments of the present application is used for fixing a workpiece 200 to test the shear force at the junction of different materials of the workpiece 200. Specifically, the auxiliary shear force test fixture 100 includes a base 110, a moving plate 120 and a pressing member 130, wherein the base 110 is used for placing and positioning a workpiece 200; the moving plate 120 has a reference surface 121 extending along a first direction, the moving plate 120 is configured to move relative to the base 110 along a second direction so as to align the reference surface 121 with a material bonding line 230 of the workpiece 200, and further, after the reference surface 121 is aligned with the material bonding line 230 of the workpiece 200, the moving plate 120 is configured to press against the workpiece 200 on the base 110; the pressing member 130 is movably disposed on the moving plate 120, the pressing member 130 can move synchronously along the second direction along with the moving plate 120, and the pressing member 130 and the reference surface 121 have a predetermined distance therebetween, and during testing, the pressing member 130 is configured to move along the first direction to press against a position of the workpiece 200 where the bonding positions of different materials are spaced apart from each other by the predetermined distance, so as to perform a shear force test on the workpiece 200.
It will be appreciated that by adjusting the movement of the moving plate 120 in the second direction to ensure that the reference surface 121 of the moving plate 120 is aligned with the line of material bonding 230 on the workpiece 200, at the same time, since the pressing member 130 is mounted on the moving plate 120 and the pressing member 130 and the reference surface 121 have a predetermined distance in the second direction, after the reference surface 121 of the moving plate 120 is aligned with the line of material bonding 230 on the workpiece 200, the effective distance between the pressing member 130 and the line of material bonding 230 on the workpiece 200 can be ensured, so that, during testing, the pressing member 130 does not press against another material beyond the line of material bonding 230, nor does it cause the pressing member 130 to press against the line of material too far from the line of material bonding 230.
By adopting the arrangement mode, the problem of inaccurate position of the pressing piece 130 applying pressure to the workpiece 200 due to factors such as manufacturing tolerance, assembly error and the like can be solved, so that accurate and effective shear force test data are ensured.
Referring to fig. 5, it should be noted that the workpiece 200 in the present embodiment includes, but is not limited to, a workpiece applied to an electronic device such as a mobile phone, a tablet, and the like. The workpiece 200 may be made of a first material 210 and a second material 220, where a material bond line 230 is formed at the junction of the first material 210 and the second material 220, so that the shear force test is performed on the junction of different materials of the workpiece 200, that is, the location of the material bond line 230 on the workpiece 200.
Preferably, the first direction is the Z-axis direction shown in fig. 1, the second direction is the X-axis direction shown in fig. 1, and the third direction is the Y-axis direction shown in fig. 1.
Referring to fig. 3, in order to facilitate visual observation of whether the reference surface 121 is aligned with the material bonding point (or the material bonding line 230), the pressing member 130 is provided with a visual structure 123, wherein the reference surface 121 is disposed on the visual structure 123.
That is, by providing the visual structure 123 on the pressing member 130, it is observed whether the reference surface 121 is aligned with the material bonding line 230. The visual structure 123 may facilitate visual observation of the reference surface 121 by naked eyes, and the visual structure 123 may be structurally designed, such as the visual window 1231, or may be structurally designed from a material or materials, such as a structure made of a transparent material, according to needs.
Preferably, the present embodiment preferably employs a visualization structure 123 that includes a visualization window 1231.
Specifically, the visual structure 123 includes a visual window 1231, where the visual window 1231 is located between two reference surfaces 121 on the visual structure 123, and the visual window 1231 is used to observe whether the corresponding reference surfaces 121 are aligned with the bonding lines 230 of different materials of the workpiece 200.
It can be appreciated that, the visual window 1231 is disposed between the two reference surfaces 121 on the visual structure 123, and it is only necessary to observe that the reference surfaces 121 on both sides of the visual window 1231 are aligned with the material bonding line 230 from the visual window 1231, so as to determine that all the reference surfaces 121 on the entire pressing member 130 are aligned with the material bonding line 230.
In some embodiments, the reference surface 121 extends along the first direction, in other words, on the basis that the pressing member 130 has a preset thickness along the first direction, the reference surface 121 has a preset size along the first direction, and since the smaller the preset size of the reference surface 121 is, the more advantageous to observe whether the reference surface 121 is aligned with the material bonding line 230 (in a limit state, whether the reference surface 121 is aligned with the material bonding line 230 may be whether the reference line is aligned with the material bonding line 230), the visual structure 123 is configured as a structure including the inclined surface 1232, and the distance between the inclined surface 1232 and the base 110 is tapered in a direction approaching the reference surface 121. This minimizes the size of the position of the visual structure 123 adjacent to the reference surface 121 in the first direction, which is advantageous for observing whether the reference surface 121 is aligned with the material bond line 230.
Referring to fig. 4, in order to facilitate assembling the pressing member 130 and the moving plate 120, the moving plate 120 is provided with a mounting structure 122, the mounting structure 122 is provided with a mounting hole 1221, and the pressing member 130 is movably embedded in the mounting hole 1221.
In the test operation, after the reference surface 121 on the moving plate 120 is aligned with the material bonding line 230, the pressing member 130 is pressed against the first material 210 or the second material 220 of the workpiece 200 along the first direction, so as to perform the shear force test of the workpiece 200. Accordingly, the pressing member 130 is movably fitted into the mounting hole 1221 so that the pressing member 130 applies pressure to the first material 210 or the second material 220 of the work 200.
In some embodiments, the mounting hole 1221 has an inner wall proximate the datum surface 121 and spaced from the datum surface 121 in the second direction in the range of 0.05-0.1mm.
It is understood that the distance between the inner wall of the mounting hole 1221 near the reference surface 121 and the reference surface 121 in the second direction may be designed to be any value between 0.05mm and 0.1mm as needed. Since the distance between the inner wall of the mounting hole 1221 on the moving plate 120, which is close to the reference surface 121, and the reference surface 121 in the second direction is a fixed value, and the pressing member 130 and the reference surface 121 are both disposed on the moving plate 120, when the reference surface 121 aligns with the material bonding line 230, the effective distance between the position of the pressing member 130 and the material bonding line 230 can be ensured, thereby ensuring that the pressing member 130 does not press against another material of the workpiece 200, and ensuring that the test data is accurate and effective.
In some embodiments, to facilitate adjusting the movement of the moving plate 120, so as to precisely control the distance of the moving plate 120 moving along the second direction, the auxiliary shear force testing fixture 100 further includes a moving module 140, where the moving module 140 is connected to the moving plate 120, and the moving module 140 is configured to provide a driving force to the moving plate 120 to drive the moving plate 120 to move along the second direction.
Specifically, the motion module 140 may be a motor+a screw assembly, where the motor is connected to a screw of the screw assembly, and the motion plate 120 is connected to a screw nut of the screw assembly. Therefore, the screw rod assembly can convert the rotary motion of the motor into the movement of the moving plate 120 along the second direction, and the moving plate is controlled by the screw rod to move to determine the detection position, so that the detection difficulty and the uncertainty of the detection point position are improved, the detection accuracy can be improved, the rejection rate of products is reduced, the cost is saved, the device can be suitable for all subsequent devices of the same type, and the universality is greatly improved.
Of course, according to practical needs, the motion module 140 may be configured as any module that facilitates accurate adjustment of the moving distance of the motion plate 120 along the second direction, such as an electric push rod, a linear motor, etc., which is not limited in this embodiment.
To further improve accuracy of the shear force test of the workpiece 200, the shear force test auxiliary fixture 100 further includes a first fixing module 150 and a second fixing module 160. The first fixing module 150 is disposed on the base 110, and the first fixing module 150 is used for pressing the moving plate 120 to fix the moving plate 120; the second fixing module 160 is disposed on the base 110, and the second fixing module 160 is used for abutting against the workpiece 200, so that the workpiece 200 is fixed on the base 110.
In some embodiments, the first fixing module 150 includes a cover plate 151 and a first locking mechanism 152, wherein the cover plate 151 is disposed on a side of the moving plate 120 facing away from the base 110, the cover plate 151 is connected to the moving plate 120, the first locking mechanism 152 is connected to the cover plate 151 and the base 110, and the first locking mechanism 152 is used for adjusting a distance between the cover plate 151 and the base 110 so that the cover plate 151 presses against the moving plate 120.
Of course, depending on the structural features of the cover plate 151 and the base 110, the first locking mechanism 152 may preferably implement the fixation of the moving plate 120 by using a screw locking manner. Specifically, the base 110 is provided with a pair of screw holes 111, the cover plate 151 is provided with a pair of through holes 1511, and the first locking mechanism 152 includes a pair of locking screws 1521, and any one of the locking screws 1521 is screwed into the corresponding screw hole 111 after passing through the corresponding through hole 1511.
In the present embodiment, a pair of locking screws 1521 are symmetrically distributed at both ends of the cover plate 151 and the base 110, thereby facilitating the locking stability of the first locking mechanism 152.
In some embodiments, the first locking mechanism 152 also includes a structure for locking the cover plate 151 in a manner of rotating the rotating locking lever. It should be noted that, unlike the locking screw 1521, the rotary locking lever in this embodiment is rotatably connected to the base 110, after the moving plate 120 and the cover plate 151 move in place, the rotary locking lever rotates relative to the base 110, so that the pressing portion on the rotary locking lever presses against the cover plate 151, and the cover plate 151 is provided with a fixing portion that is matched with the connecting portion on the rotary locking lever, so as to achieve the fixing effect of the first locking mechanism 152 on the moving plate 120. Of course, the connection between the fixing portion and the connecting portion includes, but is not limited to, a snap fit of the snap protrusion and the snap groove, a screw fit of the detachable connecting member (such as a bolt) and the detachable connecting hole (such as a screw hole), and the like, which is not particularly limited in this embodiment.
In some embodiments, the second fixing module 160 includes a positioning pin 161 and a second locking mechanism 162, wherein the positioning pin 161 is disposed on the base 110, the positioning pin 161 is used to abut against one side of the workpiece 200, and the second locking mechanism 162 includes a locking member 1621, and the locking member 1621 is used to abut against the other side of the workpiece 200. The locking member 1621 may be adjustable in position by a linkage mechanism.
In this way, the workpiece 200 is placed against the positioning pin 161 on the base 110, and then the position of the locking member 1621 is adjusted, so that the locking member 1621 abuts against the workpiece 200 from the other side, thereby positioning the workpiece 200 on the XY plane; after that, the cover plate 151 is covered, the motion module 140 drives the motion plate 120 and the cover plate 151 to move, so that the reference surface 121 on the motion plate 120 is aligned with the material bonding line 230, and finally, the cover plate 151 is locked by the first locking mechanism 152, so that the workpiece 200 can be positioned in the Z-axis direction. After positioning is complete, a shear force test of the workpiece 200 may be performed.
In summary, when the auxiliary tool 100 for shear force test is used to perform the shear force test on the workpiece 200, the pressing member 130 does not cross the material bonding line 230 to press against another material of the workpiece 200, and the pressing member 130 is not caused to press against the material far from the material bonding line 230, so that the problem of inaccurate position of the pressing member 130 for applying pressure to the workpiece 200 due to factors such as manufacturing tolerance and assembly error in the prior art is solved, and accurate and effective shear force test data is ensured.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The shear force test auxiliary fixture provided by the application is described in detail above. Specific examples are employed herein to illustrate the principles and embodiments of the present application, and the above examples are provided only to assist in understanding the aspects of the present application and their core ideas. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.
Claims (10)
1. A shear force test auxiliary jig (100) for fixing a workpiece (200) for shear force testing of a junction of different materials of the workpiece (200), the shear force test auxiliary jig (100) comprising:
a base (110) for placing and positioning the workpiece (200);
-a motion plate (120) having a reference surface (121), the reference surface (121) extending in a first direction, the motion plate (120) being adapted to bear against the workpiece (200) on the base (110) and to move in a second direction relative to the base (110) to align the reference surface (121) with a junction of dissimilar materials of the workpiece (200);
the pressing piece (130) is movably arranged on the moving plate (120) and has a preset distance from the reference surface (121) in the second direction, and the pressing piece (130) is used for moving along the first direction so as to press on the position, away from the preset distance, of the joint of different materials of the workpiece (200) so as to perform a shearing force test.
2. The shear force test auxiliary jig (100) according to claim 1, wherein the pressing member (130) is provided with a visual structure (123), and the reference surface (121) is provided on the visual structure (123).
3. The shear force test aid jig (100) of claim 2, wherein the visual structure (123) comprises a visual window (1231), the visual window (1231) being located between two of the datum surfaces (121) on the visual structure (123), the visual window (1231) being configured to observe whether the respective datum surface (121) and workpiece (200) are aligned at different material joints.
4. The shear force test auxiliary jig (100) of claim 2, wherein the visual structure (123) comprises a bevel (1232), the distance of the bevel (1232) from the base (110) tapering in a direction approaching the datum plane (121).
5. The auxiliary shear force test fixture (100) according to claim 1, wherein the motion plate (120) is provided with a mounting structure (122), the mounting structure (122) is provided with a mounting hole (1221), and the pressing member (130) is movably embedded in the mounting hole (1221).
6. The shear force test auxiliary jig (100) of claim 5, wherein a distance between an inner wall of the mounting hole (1221) adjacent to the reference surface (121) and the reference surface (121) in the second direction is in a range of 0.05-0.1mm.
7. The shear force test auxiliary jig (100) of claim 1, wherein the shear force test auxiliary jig (100) further comprises a motion module (140), the motion module (140) being connected to the motion plate (120) to drive the motion plate (120) to move along the second direction.
8. The shear force test auxiliary jig (100) according to any one of claims 1-7, wherein the shear force test auxiliary jig (100) further comprises a first fixing module (150), the first fixing module (150) is disposed on the base (110), and the first fixing module (150) is configured to press against the motion plate (120) to fix the motion plate (120);
the first stationary module (150) comprises:
the cover plate (151) is arranged on one side of the moving plate (120) away from the base (110) and is connected with the moving plate (120);
and the first locking mechanism (152) is connected with the cover plate (151) and the base (110) and is used for adjusting the interval between the cover plate (151) and the base (110) so that the cover plate (151) abuts against the moving plate (120).
9. The shear force test auxiliary jig (100) according to claim 8, wherein the base (110) is provided with a pair of screw holes (111), the cover plate (151) is provided with a pair of through holes (1511), the first locking mechanism (152) comprises a pair of locking screws (1521), and any one of the locking screws (1521) is screwed into the corresponding screw hole (111) after passing through the corresponding through hole (1511).
10. The shear force test auxiliary jig (100) according to any one of claims 1-7, wherein the shear force test auxiliary jig (100) further comprises a second fixing module (160), the second fixing module (160) being disposed on the base (110), the second fixing module (160) being configured to abut against the workpiece (200) to fix the workpiece (200) to the base (110);
the second fixing module (160) includes:
a positioning pin (161) arranged on the base (110) and used for abutting against one side of the workpiece (200);
and a second locking mechanism (162), wherein the second locking mechanism (162) comprises a locking piece (1621), and the locking piece (1621) is used for abutting against the other side of the workpiece (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320643715.3U CN219475182U (en) | 2023-03-28 | 2023-03-28 | Auxiliary jig for shear force test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320643715.3U CN219475182U (en) | 2023-03-28 | 2023-03-28 | Auxiliary jig for shear force test |
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| Publication Number | Publication Date |
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| CN219475182U true CN219475182U (en) | 2023-08-04 |
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| CN202320643715.3U Active CN219475182U (en) | 2023-03-28 | 2023-03-28 | Auxiliary jig for shear force test |
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| Country | Link |
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| CN (1) | CN219475182U (en) |
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