CN219694738U - Miniature mechanical properties test clamping device - Google Patents

Abstract

The utility model discloses a miniature mechanical property test clamping device, which comprises a base, a first linear motion mechanism, a first clamping mechanism, a first substrate clamp, a second substrate clamp and a second clamping mechanism, wherein: the first linear movement mechanism is used for driving the first clamping mechanism to move up and down; each clamping mechanism comprises a second linear motion mechanism, a fixed clamping part and an adjusting clamping part; the first linear motion mechanism and the second linear motion mechanism of the second clamping mechanism are connected with the base; during operation, the second substrate clamp is clamped by the fixed clamping part and the adjusting clamping part of the first clamping mechanism, the first substrate clamp is clamped by the fixed clamping part and the adjusting clamping part of the second clamping mechanism, the first clamping mechanism is driven to move by the first linear motion mechanism, and the sample bonding is completed by bonding the lower substrate platform and the upper substrate platform which are all coated with the adhesive. The device is favorable for improving the precision and efficiency of the mechanical property test of the sample.

Description

Miniature mechanical properties test clamping device

Technical Field

The utility model belongs to the technical field of mechanical property testing devices, and particularly relates to a miniature mechanical property test clamping device.

Background

Under the great trend of rapid development of microelectronic technology, the integration degree of chips is higher and higher, the connection between a semiconductor and a packaging body is more and more complex, and the damage of any component or micro interconnection welding spot can directly lead to the failure of the whole electronic product. Fatigue failure is one of the main failure modes of the interconnection welding spots, so that the fatigue failure analysis and research on the interconnection welding spots in the microelectronic packaging technology has important significance in engineering practice.

The fatigue failure test of the welding spot is carried out on a miniature mechanical property testing machine, and in the shearing test process of the welding spot, the test sample is required to be bonded with the upper substrate and the lower substrate on a clamp by using structural adhesive because of smaller size of the test sample. In the sample installation process, firstly, a sliding table is downwards moved to the lowest end, and the mixed structural adhesive is smeared on the inner sides of an upper clamp and a lower clamp; then the sample is placed on the lower clamp, then the sliding table is adjusted to move upwards in the Y direction, so that the upper substrate of the welding spot sample is slowly close to the lower surface of the upper clamp, the sliding table is stopped to move when the numerical value change of the mechanical sensor in the Y direction is about 0.2N, and finally the sample and the clamp are completely adhered after standing for 24 hours, so that an experiment can be performed.

However, in the prior art, the positioning and butt joint of the upper clamp and the lower clamp only need to ensure that the two clamps can lead the tensile force of the motor to act on one direction of the welding spot on the same straight line, and the other two directions are not stressed. Secondly, sample clamping is completed on a testing machine, the sample with welding spots is bonded with the two clamps through glue, and after the bonding is completed, the fatigue test can be performed after the glue is completely solidified, and the process at least needs more than 12 hours, so that the test efficiency is reduced.

Disclosure of Invention

Aiming at the problems, the utility model provides a clamping device for a miniature mechanical property test, which is beneficial to improving the precision and efficiency of the mechanical property test of a sample.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a miniature mechanical property test clamping device, which comprises a base, a first linear motion mechanism, a first clamping mechanism, a first substrate clamp, a second substrate clamp and a second clamping mechanism, wherein:

the first linear movement mechanism is used for driving the first clamping mechanism to move up and down;

the first clamping mechanism and the second clamping mechanism comprise a second linear motion mechanism, a fixed clamping part and an adjusting clamping part, the fixed clamping part is connected with the second linear motion mechanism, and the adjusting clamping part is driven by the second linear motion mechanism to move up and down;

the first linear motion mechanism and the second linear motion mechanism of the second clamping mechanism are connected with the base;

the first substrate clamp comprises a first connecting column and a first positioning column which are coaxially connected, and a lower substrate platform for placing a sample is horizontally arranged at one end of the first connecting column far away from the first positioning column;

the second substrate clamp comprises a second connecting column and a second positioning column which are coaxially connected, and an upper substrate platform is horizontally arranged at one end of the second connecting column far away from the second positioning column;

during operation, the second substrate clamp is clamped by the fixed clamping part and the adjusting clamping part of the first clamping mechanism and is rotated and limited by the second positioning column, the first substrate clamp is clamped by the fixed clamping part and the adjusting clamping part of the second clamping mechanism and is rotated and limited by the first positioning column, the first clamping mechanism is driven to move by the first linear motion mechanism, and the sample bonding is completed by bonding the lower substrate platform and the upper substrate platform which are all coated with the adhesive, so that the mechanical property test is performed.

Preferably, the fixed clamping part comprises a first connecting frame, two first adjusting screws, a first V-shaped block and a second V-shaped block, wherein the first V-shaped block and the second V-shaped block are arranged above the first connecting frame side by side, the first adjusting screws penetrate through the first connecting frame and are in one-to-one correspondence connection with the first V-shaped block and the second V-shaped block, and up-down movement of the corresponding V-shaped blocks is realized by adjusting the first adjusting screws; the adjusting clamping part comprises a second connecting frame, two springs, a third V-shaped block and a fourth clamping block, wherein the third V-shaped block and the fourth clamping block are arranged below the second connecting frame side by side and are connected with the second connecting frame through the springs, and the sections of the first positioning column and the second positioning column are polygonal.

Preferably, the first V-shaped block and the third V-shaped block form a first clamping jaw, the second V-shaped block and the fourth clamping block form a second clamping jaw, the first clamping jaw is used for clamping a corresponding connecting column, and the second clamping jaw is used for clamping a corresponding positioning column.

Preferably, the fourth clamping block is a U-shaped block, and two ends are arc-shaped surfaces.

Preferably, the miniature mechanical property test clamping device further comprises two first fixing seats, and the first linear motion mechanism and the second linear motion mechanism of the second clamping mechanism are respectively connected with the base through the first fixing seats.

Preferably, the miniature mechanical property test clamping device further comprises a holding clamp, the holding clamp comprises a second fixing seat, a third clamping mechanism used for clamping the first substrate clamp and a fourth clamping mechanism used for clamping the second substrate clamp, the third clamping mechanism and the fourth clamping mechanism are arranged on the second fixing seat side by side and respectively comprise a fifth V-shaped block, a first wedge block, a second wedge block, a plurality of first fixing screws and a plurality of second adjusting screws, the first wedge block and the second wedge block are oppositely arranged, the fifth V-shaped block is located above the first wedge block and the second wedge block, the fifth V-shaped block, the first wedge block and the second wedge block are respectively guided and in threaded connection through the first fixing screws penetrating the second fixing seat, the second adjusting screws are in threaded connection with the second fixing seat and are in one-to-one correspondence with the fifth V-shaped block, the first wedge block and the second wedge block, and clamping or loosening of the corresponding substrate clamp is achieved through adjusting the second adjusting screws.

Preferably, the first substrate clamp further comprises a first fixing block, the first fixing block is vertically connected with one end, far away from the first connecting column, of the first positioning column, the second substrate clamp further comprises a second fixing block, and the second fixing block is vertically connected with one end, far away from the second connecting column, of the second positioning column.

Preferably, the four corners of the first fixed block are also provided with chamfers.

Preferably, the miniature mechanical property test clamping device further comprises a fixing clamp, the fixing clamp comprises a third fixing seat, four third wedge blocks, a plurality of second fixing screws and a plurality of third adjusting screws, the third wedge blocks are attached to the chamfer of the first fixing block in one-to-one correspondence mode, the third wedge blocks are guided through the second fixing screws penetrating through the third fixing seats and are in threaded connection, the third adjusting screws are in threaded connection with the third fixing seats, the third wedge blocks are abutted to one-to-one correspondence mode, and clamping or loosening of the first fixing blocks is achieved through adjusting the third adjusting screws.

Preferably, each linear motion mechanism is a screw nut mechanism with a guiding function.

Compared with the prior art, the utility model has the beneficial effects that:

the device guarantees the butt joint precision of first base plate anchor clamps and second base plate anchor clamps through the special fixture that first linear motion mechanism, first fixture and second fixture are constituteed, make location and bonding precision higher, the precision of experimental data has been improved, and help realizing that the whole of first base plate anchor clamps and second base plate anchor clamps can be dismantled, the glue solidification waiting problem in the sample bonding process has been solved, can shift the glue solidification process, after last test, with new cured sample and two base plate anchor clamps direct replacement sample and two base plate anchor clamps whole the trade down that have done the test, and accessible mounting fixture realizes carrying out shearing experiment etc. with the quick clamping of testing machine body, test efficiency has been improved greatly, the clamping process has been simplified in integral clamping simultaneously, and convenient operation is also convenient.

Drawings

FIG. 1 is a schematic structural view of a clamping device for testing micro mechanical properties;

FIG. 2 is a schematic view of the structure of a first substrate holder and a second substrate holder according to the present utility model;

FIG. 3 is a schematic view of a first linear motion mechanism and a first clamping mechanism according to the present utility model;

FIG. 4 is a schematic view of the assembly of the holding fixture with a first substrate fixture and a second substrate fixture according to the present utility model;

FIG. 5 is a schematic view of the structure of the holding jig of the present utility model;

FIG. 6 is a side view of a holding fixture of the present utility model;

fig. 7 is an assembly schematic diagram of the fixing clamp and the first substrate clamp of the present utility model.

Reference numerals illustrate: 1. a base; 2. a first linear motion mechanism; 3. a first clamping mechanism; 4. a first substrate holder; 5. a second substrate holder; 6. a second clamping mechanism; 7. a first fixing seat; 8. a holding jig; 9. a fixing clamp; 31. a second linear motion mechanism; 32. a fixed clamping part; 33. adjusting the clamping part; 321. a first connection frame; 322. a first adjusting screw; 323. a first V-block; 324. a second V-block; 331. a second connecting frame; 332. a spring; 333. a third V-block; 334. a fourth clamping block; 41. a first connection post; 42. a first positioning column; 43. a first fixed block; 411. a lower substrate stage; 431. chamfering; 51. a second connection post; 52. a second positioning column; 53. a second fixed block; 511. an upper substrate stage; 81. the second fixing seat; 82. a fifth V-block; 83. a first wedge block; 84. a second wedge block; 85. a first set screw; 86. a second adjusting screw; 91. a third fixing seat; 92. a third wedge; 93. a second set screw; 94. and a third adjusting screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that 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. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Because the glue curing time is more than 24 hours, the process can not be used for experiments, so that each experiment period is prolonged, and the problems of poor positioning precision and inconvenient operation caused by the fact that the bonding process of the substrate clamp in the prior art is carried out on a testing machine are solved.

As shown in fig. 1-7, a clamping device for micro mechanical property test comprises a base 1, a first linear motion mechanism 2, a first clamping mechanism 3, a first substrate clamp 4, a second substrate clamp 5 and a second clamping mechanism 6, wherein:

the first linear motion mechanism 2 is used for driving the first clamping mechanism 3 to move up and down;

the first clamping mechanism 3 and the second clamping mechanism 6 respectively comprise a second linear motion mechanism 31, a fixed clamping part 32 and an adjusting clamping part 33, wherein the fixed clamping part 32 is connected with the second linear motion mechanism 31, and the adjusting clamping part 33 is driven to move up and down by the second linear motion mechanism 31;

the first linear motion mechanism 2 and the second linear motion mechanism 31 of the second clamping mechanism 6 are connected with the base 1;

the first substrate clamp 4 comprises a first connecting column 41 and a first positioning column 42 which are coaxially connected, and a lower substrate platform 411 for placing a sample is horizontally arranged at one end of the first connecting column 41 away from the first positioning column 42;

the second substrate fixture 5 comprises a second connecting column 51 and a second positioning column 52 which are coaxially connected, and an upper substrate platform 511 is horizontally arranged at one end of the second connecting column 51 away from the second positioning column 52;

during operation, the second substrate clamp 5 is clamped by the fixed clamping part 32 and the adjusting clamping part 33 of the first clamping mechanism 3 and is limited by the second positioning column 52 in a rotating manner, the first substrate clamp 4 is clamped by the fixed clamping part 32 and the adjusting clamping part 33 of the second clamping mechanism 6 and is limited by the first positioning column 42 in a rotating manner, the first clamping mechanism 3 is driven to move by the first linear motion mechanism 2, and the lower substrate platform 411 and the upper substrate platform 511 which are all coated with adhesive are bonded to finish sample bonding for mechanical property test.

The device guarantees the butt joint precision of first base plate anchor clamps and second base plate anchor clamps through the special fixture that first linear motion mechanism, first fixture and second fixture are constituteed, makes location and bonding precision higher, has improved experimental data's precision, and helps realizing that the whole of first base plate anchor clamps and second base plate anchor clamps can be dismantled, has solved the glue solidification in the sample bonding process and has waited for the problem.

In an embodiment, the fixing and clamping part 32 includes a first connecting frame 321, two first adjusting screws 322, a first V-shaped block 323 and a second V-shaped block 324, the first V-shaped block 323 and the second V-shaped block 324 are arranged above the first connecting frame 321 side by side, the first adjusting screws 322 penetrate through the first connecting frame 321 and are connected with the first V-shaped block 323 and the second V-shaped block 324 in a one-to-one correspondence manner, and up-and-down movement of the corresponding V-shaped blocks is achieved by adjusting the first adjusting screws 322; the adjusting clamping part 33 comprises a second connecting frame 331, two springs 332, a third V-shaped block 333 and a fourth clamping block 334, wherein the third V-shaped block 333 and the fourth clamping block 334 are arranged below the second connecting frame 331 side by side and are connected with the second connecting frame 331 through the springs 332, and the cross sections of the first positioning column 42 and the second positioning column 52 are polygonal.

In one embodiment, the first V-block 323 and the third V-block 333 form a first jaw, the second V-block 324 and the fourth clamp block 334 form a second jaw, the first jaw is configured to clamp a corresponding connection post, and the second jaw is configured to clamp a corresponding positioning post.

As shown in fig. 1, the first clamping mechanism 3 and the second clamping mechanism 6 are arranged side by side left and right, the second clamping mechanism 6 (on the left) is used for realizing positioning and clamping of the first substrate clamp 4, the first clamping mechanism 3 (on the right) is used for realizing positioning and clamping of the second substrate clamp 5, and the second substrate clamp 5 is driven by the first linear motion mechanism 2 to move downwards to be close to the first substrate clamp 4 so as to finish sample bonding. The first clamping mechanism 3 and the second clamping mechanism 6 have substantially the same structure, except that the positioning of the corresponding substrate clamp is realized by abutting and clamping the positioning posts of the corresponding substrate clamp through the second V-shaped block 324 and the fourth clamping block 334 of the clamping mechanism, so that the second V-shaped block 324 and the fourth clamping block 334 of the two clamping mechanisms are all located on the outer side, and the first V-shaped block 323 and the third V-shaped block 333 are all located on the inner side, that is, the first V-shaped blocks 323 of the two clamping mechanisms are adjacent.

Specifically, as shown in fig. 3, the second substrate clamp 5 is clamped or unclamped by approaching or separating the fixed clamping part 32 and the adjusting clamping part 33 of the first clamping mechanism 3, the section of the second positioning column 52 is in an equilateral rectangle (or can also be in an equilateral hexagon, a diamond shape or the like), the second positioning column 52 is clamped by the cooperation of the second V-shaped block 324 and the fourth clamping block 334 in the clamping state to realize rotation limit, the lower plane of the upper substrate platform 511 is kept in a horizontal position, the second connecting column 51 is clamped by the cooperation of the first V-shaped block 323 and the third V-shaped block 333 to further realize stable clamping, the notch of the first V-shaped block 323 and the second V-shaped block 324 faces upwards, the notch of the third V-shaped block 333 and the notch of the fourth clamping block 334 face downwards, the first substrate clamp 4 is clamped or loosened by approaching or separating the fixed clamping part 32 and the adjusting clamping part 33 of the second clamping mechanism 6, the section of the first positioning column 42 is of an equilateral rectangle, the first positioning column 42 is clamped by the cooperation of the second V-shaped block 324 and the fourth clamping block 334 in a clamping state to realize rotation limit, the upper plane of the lower substrate platform 411 is kept at a horizontal position, the first connecting column 41 is clamped by the cooperation of the first V-shaped block 323 and the third V-shaped block 333 to further realize stable clamping, the first adjusting screw 322 can be adjusted to realize the up-and-down movement fine adjustment of the first V-shaped block 323 and the second V-shaped block 324, the first linear movement mechanism 2 drives the first clamping mechanism 3 to move, and the sample bonding is completed by bonding the lower substrate platform 411 and the upper substrate platform 511 which are all smeared with adhesive. Each linear motion mechanism is a screw nut mechanism and guides through a guide rail sliding block mechanism, a handle can be arranged at the upper end of the screw rod, and the corresponding mechanism is driven to move up and down through rotating the handle. It should be noted that the rotation may also be driven by a motor.

Since the middle welding spot of the sample is soft and cannot bear a large pressing force, the spring 332 is added on the clamping mechanism, so that the sample is prevented from being damaged by a large force generated when the second substrate clamp 5 moves downwards to be adhered with the first substrate clamp 4.

In one embodiment, the fourth clamping block 334 is a U-shaped block with arcuate surfaces at both ends. And accurate positioning is facilitated.

In an embodiment, the clamping device for testing the micro mechanical property further comprises two first fixing seats 7, and the first linear motion mechanism 2 and the second linear motion mechanism 31 of the second clamping mechanism 6 are respectively connected with the base 1 through the first fixing seats 7.

In an embodiment, the micro mechanical property test clamping device further comprises a holding fixture 8, the holding fixture 8 comprises a second fixing seat 81, a third clamping mechanism for clamping the first substrate clamp 4 and a fourth clamping mechanism for clamping the second substrate clamp 5, the third clamping mechanism and the fourth clamping mechanism are arranged on the second fixing seat 81 side by side and respectively comprise a fifth V-shaped block 82, a first wedge block 83, a second wedge block 84, a plurality of first fixing screws 85 and a plurality of second adjusting screws 86, the first wedge block 83 and the second wedge block 84 are oppositely arranged, the fifth V-shaped block 82 is located above the first wedge block 83 and the second wedge block 84, the fifth V-shaped block 82, the first wedge block 83 and the second wedge block 84 are respectively in guiding and threaded connection through the first fixing screws 85 penetrating through the second fixing seat 81, the second adjusting screws 86 are in threaded connection with the second fixing seat 81, and are abutted against the fifth V-shaped block 82, the first wedge block 83 and the second wedge block 84 in a one-to-one correspondence, and clamping or loosening of the corresponding substrate clamp is achieved through the second adjusting screws 86.

Specifically, after the second substrate holder 5 and the first substrate holder 4 are bonded, the bonded second substrate holder 5 and first substrate holder 4 are removed as a whole. As shown in fig. 4, 5 and 6, the second substrate holder 5 and the first substrate holder 4 are respectively fixed in the third clamping mechanism and the fourth clamping mechanism at two ends of the holding fixture 8, and the third clamping mechanism and the fourth clamping mechanism are composed of a fifth V-shaped block 82, a first wedge-shaped block 83, a second wedge-shaped block 84, a plurality of first fixing screws 85 and a plurality of second adjusting screws 86, and since the fifth V-shaped block 82 can move up and down, even if the distance between the second substrate holder 5 and the first substrate holder 4 is different due to slight difference in thickness of the sample, the stable fixation of the second substrate holder 5 and the first substrate holder 4 can be ensured, thereby achieving the purpose of protecting the sample. Specifically, each of the fifth V-shaped block 82, the first wedge-shaped block 83 and the second wedge-shaped block 84 in the third clamping mechanism and the fourth clamping mechanism corresponds to two first fixing screws 85 and one second adjusting screw 86 respectively, the first fixing screws 85 and the second adjusting screws 86 are arranged in parallel, the two first fixing screws 85 penetrate through the second fixing seat 81 (i.e. are in sliding connection and guiding with the second fixing seat 81) to be in threaded connection with the corresponding fifth V-shaped block 82 or the corresponding first wedge-shaped block 83 or the corresponding second wedge-shaped block 84, the second adjusting screws 86 are in threaded connection with the second fixing seat 81 to be correspondingly abutted against the fifth V-shaped block 82 or the first wedge-shaped block 83 or the second wedge-shaped block 84, and the corresponding V-shaped block or the wedge-shaped block can be pushed to move by screwing the second adjusting screws 86, so that the corresponding substrate clamp can be clamped or released by the third clamping mechanism or the fourth clamping mechanism.

In an embodiment, the first substrate holder 4 further includes a first fixing block 43, the first fixing block 43 is vertically connected to an end of the first positioning column 42 away from the first connection column 41, and the second substrate holder 5 further includes a second fixing block 53, and the second fixing block 53 is vertically connected to an end of the second positioning column 52 away from the second connection column 51.

In an embodiment, the corners of the first fixing block 43 are further provided with chamfers 431.

In an embodiment, the micro mechanical property test clamping device further comprises a fixing clamp 9, the fixing clamp 9 comprises a third fixing seat 91, four third wedge blocks 92, a plurality of second fixing screws 93 and a plurality of third adjusting screws 94, the third wedge blocks 92 are attached to the chamfer 431 of the first fixing block 43 in a one-to-one correspondence manner, the second fixing screws 93 penetrating through the third fixing seat 91 are used for guiding and in threaded connection, the third adjusting screws 94 are in threaded connection with the third fixing seat 91, the third wedge blocks 92 are abutted against in a one-to-one correspondence manner, and the clamping or loosening of the first fixing block 43 is achieved by adjusting the third adjusting screws 94.

The second substrate holder 5 and the first substrate holder 4 fixed by the holding jig 8 are integrally removed and clamped to the testing machine. The second fixing block 53 of the second substrate fixture 5 may be provided with a plurality of threaded holes, and is directly fixed to the testing machine by screws, four corners of the first fixing block 43 of the first substrate fixture 4 are provided with 20-degree chamfer angles (chamfer angles) perpendicular to the axial direction of the first connecting column 41, as shown in fig. 7, the third fixing seat 91 provided with four third wedge blocks 92 is fixed on the testing machine, and each chamfer angle of the first fixing block 43 is matched and clamped with the four third wedge blocks 92 to fix the first substrate fixture 4 on the testing machine. Since the axial distance of the two substrate clamps is pulled apart or pressed closer after each experiment is completed, the clamping distance is different each time, and each distance change can be compensated by adjusting the four movable third wedge blocks 92. After the first fixing block 43 is placed in the third fixing seat 91, the upper two third wedge blocks 92 are matched with corresponding chamfers of the first fixing block 43 under the dead weight, and due to the self-locking effect of the wedge blocks, clamping can be realized only by locking the second fixing screws 93 and the third adjusting screws 94 of the lower two wedge blocks. Specifically, each third wedge 92 corresponds to two second fixing screws 93 and one third adjusting screw 94, and the working principle thereof is the same as that of the first fixing screw 85 and the second adjusting screw 86, and will not be described herein.

In one embodiment, each linear motion mechanism is a lead screw nut mechanism with a guiding function. The linear motion mechanism can also adopt other mechanisms in the prior art, such as a gear rack mechanism, a synchronous belt transmission mechanism and the like.

The working principle is as follows:

when preparing a sample, the first substrate clamp 4 and the second substrate clamp 5 are respectively placed on the corresponding fixed clamping parts 32, then the corresponding adjusting clamping parts 33 are driven to move downwards through the second linear motion mechanisms 31 of the first clamping mechanism 3 and the second clamping mechanism 6 to clamp the substrate clamps, then the adjacent surfaces of the lower substrate platform 411 and the upper substrate platform 511 are coated with adhesive, the sample is placed on the lower substrate platform 411 (namely, the surface coated with adhesive), and then the first clamping mechanism 3 is driven to move downwards through the first linear motion mechanism 2 to drive the upper substrate platform 511 to move downwards and the lower substrate platform 411 to approach to finish the sample adhesion. Before the first substrate clamp 4 and the second substrate clamp 5 after the sample is bonded are removed, the second substrate clamp 5 and the first substrate clamp 4 are fixed by the holding clamp 8, and the whole is removed, and the sample is clamped on the testing machine by the fixing clamp 9.

The substrate clamp in the prior art is connected with the tester body by adopting two long plates, the positioning and the mounting of the substrate clamp are facilitated by improving the clamping mechanism of the substrate clamp again, the clamping precision is improved, the glue curing process is transferred from the tester, the glue curing can be directly waited for or completed through the holding clamp during bonding, the continuous work of the tester is avoided, and the integral clamping of the substrate clamp onto the tester is further designed on the premise of ensuring that a sample is not damaged, so that the integral clamping is realized, and the experimental efficiency is greatly improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above-described embodiments represent only the more specific and detailed embodiments of the present utility model, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A miniature mechanical properties test clamping device, its characterized in that: the miniature mechanical property test clamping device comprises a base (1), a first linear motion mechanism (2), a first clamping mechanism (3), a first substrate clamp (4), a second substrate clamp (5) and a second clamping mechanism (6), wherein:

the first linear movement mechanism (2) is used for driving the first clamping mechanism (3) to move up and down;

the first clamping mechanism (3) and the second clamping mechanism (6) comprise a second linear motion mechanism (31), a fixed clamping part (32) and an adjusting clamping part (33), wherein the fixed clamping part (32) is connected with the second linear motion mechanism (31), and the adjusting clamping part (33) is driven to move up and down through the second linear motion mechanism (31);

the first linear motion mechanism (2) and the second linear motion mechanism (31) of the second clamping mechanism (6) are connected with the base (1);

the first substrate clamp (4) comprises a first connecting column (41) and a first positioning column (42) which are coaxially connected, and a lower substrate platform (411) for placing a sample is horizontally arranged at one end of the first connecting column (41) away from the first positioning column (42);

the second substrate clamp (5) comprises a second connecting column (51) and a second positioning column (52) which are coaxially connected, and an upper substrate platform (511) is horizontally arranged at one end, far away from the second positioning column (52), of the second connecting column (51);

during operation, the second substrate clamp (5) is clamped by the fixed clamping part (32) and the adjusting clamping part (33) of the first clamping mechanism (3) and is rotated and limited by the second positioning column (52), the first substrate clamp (4) is clamped by the fixed clamping part (32) and the adjusting clamping part (33) of the second clamping mechanism (6) and is rotated and limited by the first positioning column (42), the first clamping mechanism (3) is driven to move by the first linear motion mechanism (2), and the sample bonding is completed by bonding the lower substrate platform (411) and the upper substrate platform (511) which are all coated with adhesive, so that the mechanical property test is performed.

2. The miniature mechanical property test clamping device of claim 1, wherein: the fixing clamping part (32) comprises a first connecting frame (321), two first adjusting screws (322), a first V-shaped block (323) and a second V-shaped block (324), wherein the first V-shaped block (323) and the second V-shaped block (324) are arranged above the first connecting frame (321) side by side, and the first adjusting screws (322) penetrate through the first connecting frame (321) and are connected with the first V-shaped block (323) and the second V-shaped block (324) in a one-to-one correspondence manner, and the up-down movement of the corresponding V-shaped blocks is realized by adjusting the first adjusting screws (322); the adjusting clamping part (33) comprises a second connecting frame (331), two springs (332), a third V-shaped block (333) and a fourth clamping block (334), the third V-shaped block (333) and the fourth clamping block (334) are arranged below the second connecting frame (331) side by side and connected with the second connecting frame (331) through the springs (332), and the sections of the first positioning column (42) and the second positioning column (52) are polygonal.

3. The miniature mechanical property test clamping device of claim 2, wherein: the first V-shaped block (323) and the third V-shaped block (333) form a first clamping jaw, the second V-shaped block (324) and the fourth clamping block (334) form a second clamping jaw, the first clamping jaw is used for clamping a corresponding connecting column, and the second clamping jaw is used for clamping a corresponding positioning column.

4. The miniature mechanical property test clamping device of claim 2, wherein: the fourth clamping block (334) is a U-shaped block, and two ends of the fourth clamping block are arc-shaped surfaces.

5. The miniature mechanical property test clamping device of claim 1, wherein: the miniature mechanical property test clamping device further comprises two first fixing seats (7), and the first linear motion mechanism (2) and the second linear motion mechanism (31) of the second clamping mechanism (6) are connected with the base (1) through the first fixing seats (7) respectively.

6. The miniature mechanical property test clamping device of claim 2, wherein: the miniature mechanical property test clamping device further comprises a holding clamp (8), the holding clamp (8) comprises a second fixing seat (81), a third clamping mechanism used for clamping the first substrate clamp (4) and a fourth clamping mechanism used for clamping the second substrate clamp (5), the third clamping mechanism and the fourth clamping mechanism are arranged on the second fixing seat (81) side by side and respectively comprise a fifth V-shaped block (82), a first wedge block (83), a second wedge block (84), a plurality of first fixing screws (85) and a plurality of second adjusting screws (86), the first wedge block (83) and the second wedge block (84) are oppositely arranged, the fifth V-shaped block (82) is located above the first wedge block (83) and the second wedge block (84), the fifth V-shaped block (82), the first wedge block (83) and the second wedge block (84) are respectively connected with the first fixing screws (85) of the second fixing seat (81) in a penetrating mode, the first wedge block (83) is connected with the second wedge block (84) in a guiding mode, and the second wedge block (84) is in a threaded mode, and the second wedge block (84) is in threaded mode is in corresponding to the threaded connection with the second fixing seat (81).

7. The miniature mechanical property test clamping device of claim 6, wherein: the first substrate clamp (4) further comprises a first fixing block (43), the first fixing block (43) is vertically connected with one end, far away from the first connecting column (41), of the first positioning column (42), the second substrate clamp (5) further comprises a second fixing block (53), and the second fixing block (53) is vertically connected with one end, far away from the second connecting column (51), of the second positioning column (52).

8. The miniature mechanical property test clamping device of claim 7, wherein: the four corners of the first fixed block (43) are also provided with chamfers (431).

9. The miniature mechanical property test clamping device of claim 8, wherein: the miniature mechanical property test clamping device further comprises a fixing clamp (9), the fixing clamp (9) comprises a third fixing seat (91), four third wedge blocks (92), a plurality of second fixing screws (93) and a plurality of third adjusting screws (94), the third wedge blocks (92) are attached in one-to-one correspondence to chamfer angles (431) of the first fixing blocks (43), the second fixing screws (93) of the third fixing seat (91) are penetrated to conduct guiding and threaded connection, the third adjusting screws (94) are in threaded connection with the third fixing seat (91), and the third wedge blocks (92) are abutted to one another in one-to-one correspondence, and clamping or loosening of the first fixing blocks (43) is achieved through adjustment of the third adjusting screws (94).

10. The miniature mechanical property test clamping device of claim 1, wherein: each linear motion mechanism is a screw nut mechanism with a guiding function.