CN219915188U

CN219915188U - Multi-line chip tensile testing machine

Info

Publication number: CN219915188U
Application number: CN202321275724.8U
Authority: CN
Inventors: 戴小兵
Original assignee: Shenzhen Hengwei Weiye Electronic Materials Co ltd
Current assignee: Shenzhen Hengwei Weiye Electronic Materials Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-10-27
Anticipated expiration: 2033-05-24

Abstract

The utility model provides a multi-line chip tensile testing machine. The multi-line chip tensile force testing machine comprises a testing table and a bracket fixed on the top of the testing table; the lifting assembly is arranged on the bracket and comprises a movable seat and a first locking bolt, the movable seat is slidably arranged on the bracket, and the first locking bolt is rotatably arranged on the movable seat; the tension meter is movably arranged on one side of the movable seat; the tension meter crochet is arranged on the tension meter; the first sliding rail is fixedly arranged at the top of the test bench; the second sliding rail is slidably mounted on the first sliding rail. The multi-line chip tensile force testing machine provided by the utility model has the advantages of no need of holding a tensile force meter by a technician for testing, convenience in testing, high accuracy and convenience in quick replacement of products to be tested.

Description

Multi-line chip tensile testing machine

Technical Field

The utility model relates to the technical field of chip tensile testing, in particular to a multi-line chip tensile testing machine.

Background

The tensile force tester is a special dynamic testing instrument used in the fields of microelectronic packaging, PCBA electronic assembly manufacturing and failure analysis thereof, and is an important instrument and equipment for filling the domestic blank in the fields of microelectronic and electronic manufacturing. The device has the advantages of quick and accurate test, wide application range and high test precision, and is suitable for semiconductor IC packaging test, LED packaging test, photoelectronic device packaging test, PCBA electronic assembly test, automobile electronic, aerospace, military and the like. The method can also be used in the failure analysis field of various electronic analysis and research units and the teaching and research of various institutions. The device is no matter how accurate, repeatable and reliable, controllable and designed.

The utility model provides a 202121890249.6 a bonding wire tensile testing device among the prior art discloses a bonding wire tensile testing device, adsorbs the circuit board in the clamping structure through clamping mechanism's negative pressure adsorption structure, and then fully fixes the circuit board through adjusting clamping area of clamping structure, and whole clamping mechanism of rethread lift adjustment and rotation regulation clamping structure to obtain the operating angle that fully be convenient for the technician utilized drag hook mechanism to draw the bonding wire and the observation angle that the technician utilized the sight glass to observe, can fully improve the accuracy of test result when fully reducing technician's working strength and test degree of difficulty like this.

However, in the above-mentioned technique, a technician is required to hold the tension meter for manual measurement, so that the test accuracy is low and the referenceability is not high.

Therefore, it is necessary to provide a new multi-line chip tensile tester to solve the above technical problems.

Disclosure of Invention

The technical problem solved by the utility model is to provide the multi-line chip tensile testing machine which is convenient to use, high in space utilization efficiency and convenient to clean dust.

In order to solve the above technical problems, the multi-line chip tensile tester provided by the utility model comprises: a test bench and a bracket fixed on the top of the test bench; the lifting assembly is arranged on the bracket and comprises a movable seat and a first locking bolt, the movable seat is slidably arranged on the bracket, and the first locking bolt is rotatably arranged on the movable seat; the tension meter is movably arranged on one side of the movable seat; the tension meter crochet is arranged on the tension meter; the first sliding rail is fixedly arranged at the top of the test bench; the second sliding rail is slidably arranged on the first sliding rail; the clamping platform is slidably mounted on the second sliding rail; the two pressing spring pieces are fixedly arranged on the clamping platform.

Preferably, the lifting assembly further comprises a first fine tuning knob, the first fine tuning knob is rotatably installed on the movable seat, and the first sliding rail and the second sliding rail are both provided with a first adjusting knob.

Preferably, a pressing reed locking screw is arranged on the pressing reed, and the pressing reed locking screw is arranged on the clamping platform in a threaded manner.

Preferably, the sliding seat is slidably arranged on the support, the microscope is fixedly arranged on the sliding seat, the camera is arranged on the microscope, and the annular illuminating lamp is arranged at the bottom of the microscope.

Preferably, the sliding seat is rotatably provided with a second fine tuning knob and a second locking bolt, and the microscope is provided with a second adjusting knob.

Preferably, a plurality of expansion screw holes are formed in the top of the clamping platform.

Compared with the related art, the multi-line chip tensile testing machine provided by the utility model has the following beneficial effects:

1. through the tension meter and the lifting assembly which can be fixed on the microscope support, the welding line tension can be tested, the clamping PCBA at the position of the pressing reed and the X-axis Y-axis rotating shaft combined platform matched with the clamping PCBA at the position of the pressing reed and capable of being finely adjusted can be quickly replaced, and if a customer who can use the microscope does not need to purchase the microscope, the expense is saved for the customer.

2. Similar to a microscope lift knob assembly, the microscope lift knob assembly allows an operator to more quickly adapt and operate with the hands.

3. Clamping mechanisms designed for factory-used tension meters specifically for consumer electronics COB (Chip on Board) processes.

4. The quick-detachable pressure spring type PCBA clamping platform is adopted, so that the testing speed is greatly increased, and the reserved expansion screw holes of the quick-detachable pressure spring type PCBA clamping platform reserve an installation space for PCBA with components on the back side.

5. According to the characteristics of multiple lines and high-density bonding wires of a chip of the process of the consumer electronic product COB (Chip on Board), an X-axis Y-axis theta rotation axis combination platform capable of fine-adjusting positions is designed. The operator can finely operate the fine adjustment test position conveniently, the precision of the operator when the PCBA is manually moved is greatly improved, the probability of false touching of a pull crochet hook and false touching of a welding wire possibly occurring when the PCBA is manually moved is reduced, and the precision and reliability of the test requirement are greatly improved.

6. The device has wide application range, can be used for multi-line COB technology, LED technology and the like, and can be used for tensile test on various wires (gold wires, copper wires, silver wires and the like) welded on a chip.

Drawings

FIG. 1 is a schematic diagram of a multi-chip tensile tester according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of a part of the structure shown in FIG. 1;

FIG. 3 is a schematic rear view of the structure shown in FIG. 1;

fig. 4 is a schematic side view of the structure shown in fig. 1.

Reference numerals in the drawings: 1. a test bench; 2. a bracket; 3. a lifting assembly; 301. a movable seat; 302. a first locking bolt; 303. fine tuning the first knob; 4. a tension meter; 5. a hook needle of a tension meter; 6. a first slide rail; 7. a second slide rail; 8. a clamping platform; 9. a pressing reed; 10. the pressing reed locks the screw; 11. an adjusting knob I; 12. a sliding seat; 13. a microscope; 14. a camera; 15. an annular lighting lamp; 16. fine tuning knob II; 17. a second locking bolt; 18. an adjusting knob II; 19. and expanding the screw holes.

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.

Referring to fig. 1, 2, 3 and 4, the multi-line chip tensile tester includes: a test bench 1 and a bracket 2 fixed on top of the test bench 1; the lifting assembly 3 is arranged on the bracket 2, the lifting assembly 3 comprises a movable seat 301 and a first locking bolt 302, the movable seat 301 is slidably arranged on the bracket 2, and the first locking bolt 302 is rotatably arranged on the movable seat 301; the tension meter 4 is movably arranged on one side of the movable seat 301; the tension meter crochet 5 is arranged on the tension meter 4; the first slide rail 6 is fixedly arranged at the top of the test bench 1, and the direction of the first slide rail 6 is the X direction; the second sliding rail 7 is slidably mounted on the first sliding rail 6, and the direction of the second sliding rail 7 is the Y direction; the clamping platform 8 is slidably arranged on the second sliding rail 7; the two pressing spring pieces 9 are fixedly arranged on the clamping platform 8.

The lifting assembly 3 further comprises a first fine tuning knob 303, the first fine tuning knob 303 is rotatably mounted on the movable seat 301, and the first sliding rail 6 and the second sliding rail 7 are respectively provided with a first adjusting knob, and the first adjusting knob is used for adjusting the position of the clamping platform 8.

The pressing reed 9 is provided with a pressing reed locking screw 10, the pressing reed locking screw 10 is used for fixing the position of the pressing reed 9, the pressing reed locking screw 10 is arranged on the clamping platform 8 in a threaded mode, and the pressing reed 9 is convenient for fixing the PCBA.

The support 2 is provided with a sliding seat 12 in a sliding manner, the sliding seat 12 is fixedly provided with a microscope 13, the microscope 13 is provided with a camera 14, the bottom of the microscope 13 is provided with an annular illuminating lamp 15, and the annular illuminating lamp 15 is positioned above a clamping platform 18 and used for providing illumination.

The sliding seat 12 is rotatably provided with a second fine tuning knob 16 and a second locking bolt 17, the second fine tuning knob 16 is used for fine tuning the microscope 13, the second locking bolt 17 is used for adjusting the height of the microscope, the microscope 13 is provided with a second adjusting knob 18, and the second adjusting knob 18 is used for adjusting the magnification of the microscope 13.

A plurality of expansion screw holes 19 are formed in the top of the clamping platform 8, components are arranged on the back surface of a PCBA product to be tested, corresponding clamping jigs can be correspondingly manufactured, and then the clamping jigs which clamp the PCBA well are mounted on the expansion screw holes 19 on the clamping platform 8.

The working principle of the multi-line chip tensile testing machine provided by the utility model is as follows:

the tension meter crochet 5 is hooked to pull the welding wire, the tension meter 4 can adjust the position of the movable seat 301 through the first locking bolt 302 on the lifting assembly 3, so that the position of the tension meter 4 is changed, when the tension meter 4 rises to the tension limit of the welding wire, the welding wire can be broken, the test needle of the tension meter 4 can stop on the scale of the limit value of the breaking of the welding wire, the breaking value of the welding wire is obtained by visual inspection, the PCBA can be fixed by quickly pulling and inserting the position of the pressure reed 9, the product to be tested of the PCBA can be quickly replaced,

the fine operation fine adjustment test position of an operator can be conveniently achieved through the first sliding rail 6 and the second sliding rail 7 on the X axis and the Y axis, so that the precision of the operator during manual PCBA is greatly improved, the probability of false touching of a pull crochet hook and a false touching of a welding wire possibly occurring during manual PCBA is reduced, and the precision and reliability of the test requirement are greatly improved.

1. the tension meter 4 and the lifting assembly 3 which can be fixed on the microscope support 2 can test the tension of welding lines, so that the clamping PCBA at the position of the pressing reed 9 and the X-axis Y-axis rotating shaft combined platform matched with the clamping PCBA at the position of the pressing reed can be quickly replaced, and if a customer who can use a microscope can not purchase the microscope, the expense is saved for the customer.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A multi-wire chip tensile tester, comprising:

a test bench and a bracket fixed on the top of the test bench;

the lifting assembly is arranged on the bracket and comprises a movable seat and a first locking bolt, the movable seat is slidably arranged on the bracket, and the first locking bolt is rotatably arranged on the movable seat;

the tension meter is movably arranged on one side of the movable seat;

the tension meter crochet is arranged on the tension meter;

the first sliding rail is fixedly arranged at the top of the test bench;

the second sliding rail is slidably arranged on the first sliding rail;

the clamping platform is slidably mounted on the second sliding rail;

the two pressing spring pieces are fixedly arranged on the clamping platform.

2. The multi-wire chip tensile tester according to claim 1, wherein the lifting assembly further comprises a first fine tuning knob rotatably mounted on the movable seat, and the first sliding rail and the second sliding rail are both provided with a first adjusting knob.

3. The multi-wire chip tensile tester according to claim 2, wherein a pressing spring locking screw is arranged on the pressing spring, and the pressing spring locking screw is installed on the clamping platform in a threaded manner.

4. The multi-line chip tensile tester according to claim 3, wherein a sliding seat is slidably mounted on the support, a microscope is fixedly mounted on the sliding seat, a camera is arranged on the microscope, and an annular illuminating lamp is arranged at the bottom of the microscope.

5. The multi-wire chip tensile tester according to claim 4, wherein the second fine tuning knob and the second locking bolt are rotatably installed on the sliding seat, and the second adjusting knob is arranged on the microscope.

6. The multi-wire chip tensile tester according to claim 5, wherein a plurality of expansion screw holes are formed in the top of the clamping platform.