CN218427828U - Clamping jig for push-pull force test - Google Patents
Clamping jig for push-pull force test Download PDFInfo
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- CN218427828U CN218427828U CN202222110977.1U CN202222110977U CN218427828U CN 218427828 U CN218427828 U CN 218427828U CN 202222110977 U CN202222110977 U CN 202222110977U CN 218427828 U CN218427828 U CN 218427828U
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Abstract
The utility model relates to a push-pull force test clamping jig, which comprises a base, a support plate, a base plate, a cover plate and a cover plate fixing mechanism for fixing the cover plate on the base; the support plate is arranged on the base, and the base plate is arranged on the support plate; the clamping jig also comprises a first positioning mechanism for limiting the relative displacement of the carrier plate and the base and a second positioning mechanism for limiting the relative displacement of the base plate and the carrier plate; the base plate is provided with a product placing area matched with a product to be tested, the product placing area is provided with a third positioning mechanism used for positioning the product to be tested, the cover plate covers the base plate through the third positioning mechanism, and the cover plate is provided with a test window corresponding to the product placing area. The utility model discloses a clamping tool can be used to use on the push-and-pull force tester, through reasonable location structural design between the clamping tool accessory, can effectively avoid the product that awaits measuring to take place the offset, can reduce the damage of test process to the product to show authenticity and the stability that promotes test data.
Description
Technical Field
The utility model relates to a test fixture specifically indicates a push-and-pull power test clamping tool.
Background
In a semiconductor packaging process, destructive tests such as tensile force and thrust force are carried out on products to confirm whether the quality of the produced products is qualified, a push-pull force tester is a common device in the field of semiconductors, the products to be tested are placed on a support plate, the support plate is placed on a machine table, a pressing plate is arranged above the support plate, matched test windows are arranged on the pressing plate according to the products to be tested, an automatic lifting mechanism for controlling the lifting of the pressing plate is arranged on the push-pull force tester, the products to be tested are fixed by controlling the pressing of the pressing plate and the support plate, and finally the push-pull force of the products to be tested is tested.
The clamping jig for fixing the product to be tested on the existing push-pull force tester still has certain defects in design, the product to be tested is placed on the carrier plate and is prone to position deviation, and once the position deviation occurs, a test window on the pressure plate cannot be aligned with a chip, so that the chip or a welding wire is damaged after pressing. In addition, after the pressing plate and the carrier plate are pressed, the product to be tested still slightly shakes, and the authenticity and the stability of push-pull force test data can be seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a push-and-pull force test clamping tool that can be used to on push-and-pull force tester through reasonable location structure design, can effectively avoid the product that awaits measuring to take place the offset, can reduce the damage of test procedure to the product to show authenticity and the stability that promotes the test data.
In order to realize the purpose, the utility model discloses the technical scheme who adopts does:
a push-pull force test clamping jig comprises a base, a carrier plate, a base plate, a cover plate and a cover plate fixing mechanism for fixing the cover plate on the base; the support plate is arranged on the base, and the base plate is arranged on the support plate;
the clamping jig further comprises a first positioning mechanism for limiting the relative displacement between the carrier plate and the base and a second positioning mechanism for limiting the relative displacement between the base plate and the carrier plate;
the test device comprises a base plate and is characterized in that a product placing area matched with a to-be-tested product is arranged on the base plate, a third positioning mechanism used for positioning the to-be-tested product is arranged in the product placing area, the cover plate covers the base plate through the third positioning mechanism, and a test window corresponding to the product placing area is arranged on the cover plate.
Further, the first positioning mechanism comprises a first positioning pin arranged on the base and a first positioning hole arranged on the carrier plate and matched with the first positioning pin; or, first positioning mechanism including set up in first pilot pin on the support plate and set up in on the base and with first pilot pin assorted first locating hole.
Further, the second positioning mechanism comprises a second positioning pin arranged on the carrier plate and a second positioning hole arranged on the base plate and matched with the second positioning pin; or the second positioning mechanism comprises a second positioning pin arranged on the backing plate and a second positioning hole arranged on the carrier plate and matched with the second positioning pin.
Furthermore, the third positioning mechanism comprises a third positioning pin arranged in the product placing area, and a third positioning hole matched with the third positioning pin is formed in the cover plate.
Furthermore, the base is provided with a lifting mechanism and a regulating valve for controlling the lifting mechanism to lift, and the lifting mechanism is connected with the cover plate fixing mechanism.
Furthermore, the cover plate fixing mechanisms are respectively arranged at two opposite ends of the base, cover plate insertion grooves are formed in the cover plate fixing mechanisms, first installation holes are formed in the cover plates, second installation holes corresponding to the first installation holes are formed in the cover plate fixing mechanisms, the cover plates are inserted into the cover plate insertion grooves, and the cover plates are inserted into the first installation holes and the second installation holes through fasteners and fixed to the cover plate fixing mechanisms.
Furthermore, the cover plate is provided with a limiting sliding groove, one end of the limiting sliding groove is an open end, the other end of the limiting sliding groove forms a limiting part, the cover plate fixing mechanism is provided with a limiting rod, and when the cover plate is inserted into the preset position in the cover plate insertion groove, the limiting rod is in contact with the limiting part to limit the cover plate.
Furthermore, a first vacuum adsorption hole is formed in the base, an air channel is arranged in the base, one end of the air channel is correspondingly communicated with the first vacuum adsorption hole, and the other end of the air channel is connected with a vacuumizing connector; the carrier plate is provided with a second vacuum adsorption hole, the second vacuum adsorption hole is communicated with the first vacuum adsorption hole, the product placing area of the base plate is provided with a plurality of third vacuum adsorption holes, the third vacuum adsorption holes are used for adsorbing a plurality of product units on a product to be tested in a one-to-one correspondence mode, and the third vacuum adsorption holes are communicated with the second vacuum adsorption hole correspondingly.
Furthermore, a supporting boss higher than the surface of the base plate is arranged on the base plate and positioned beside the third vacuum adsorption hole.
Further, the third vacuum adsorption hole includes a groove lower than the surface of the pad plate and a vent hole communicating with the groove.
The utility model discloses a clamping tool can be used to use on the push-pull force tester, a product that awaits measuring after being used for the semiconductor plastic package carries out the pressfitting fixed, this tool is in order to avoid awaiting measuring the product emergence offset of awaiting measuring, positioning mechanism through the multicomponent mutually supporting reaches each parts rigidity after the assembly and installs the product rigidity of awaiting measuring on the backing plate, the product that awaits measuring promptly is placed the district on the backing plate and is placed, the frame of the product that awaits measuring is by the spacing product of avoiding awaiting measuring to move for the backing plate of third positioning mechanism on the backing plate, the backing plate is installed on the support plate, realize spacing of position through second positioning mechanism between backing plate and the support plate, the support plate is installed on the base, realize spacing of position through first positioning mechanism between support plate and the base, the apron covers on the backing plate, the apron carries out spacing of position through third positioning mechanism with the backing plate, the apron still carries out the rigidity through apron fixed establishment with the base, assemble according to the mode, can effectively avoid the product that awaits measuring to take place the offset, compare in current clamping tool, the damage of the pressfitting product that awaits measuring when not only having avoided, also can improve the authenticity and the stability of test data.
Drawings
FIG. 1 is an assembly structure diagram of a clamping fixture in an embodiment;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view of a base of the clamping fixture;
FIG. 4 is a side view of FIG. 3;
fig. 5 is a schematic structural diagram of a carrier plate in the clamping fixture;
FIG. 6 is a schematic structural view of a backing plate in the clamping fixture;
FIG. 7 is an enlarged view of a portion of the vacuum chucking hole of FIG. 6;
fig. 8 is a schematic structural view of a cover plate in the clamping fixture.
Reference numerals:
100-a base;
101-a first concave part, 102-a first vacuum adsorption hole, 103-a first positioning pin, 104-an adjusting valve, 105-a positioning screw, 106-a vacuum-pumping joint, 107-a cover plate fixing mechanism, 108-a cover plate insertion groove and 109-an installation base;
200-a carrier plate;
201-a second recess, 202-a second vacuum adsorption hole, 203-a first through hole, 204-a second positioning pin, 205-a first positioning hole;
300-a backing plate;
301-a product placement area, 302-a second through hole, 303-a second positioning hole, 304-a third positioning pin, 305-a third vacuum adsorption hole, 306-a support boss;
400-a cover plate;
401-third recess, 402-test window, 403-third positioning hole, 404-first mounting hole, 405-limit runner.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment discloses a push-pull force test clamping jig, which is used for fixing a product to be tested in push force and pull force and then loading the product and the jig on a machine table of a push-pull force tester. The product to be tested referred to in this embodiment is exemplified by a semiconductor plastic package product (generally, a product with a frame that has completed plastic packaging of each chip unit). The clamping fixture in this embodiment is configured to fix a product to be tested after assembling a plurality of accessories, as shown in fig. 1 to 8, the accessories include a base 100, a carrier 200, a pad 300, a cover 400, and a cover fixing mechanism 107. Referring to fig. 1 and 2, during assembly, the base 100 is located at the lowest part, the carrier plate 200 is installed at the top of the base 100, the carrier plate 200 and the base 100 are limited by the first positioning mechanism to avoid relative displacement of the two along the horizontal direction, the padding plate 300 is installed at the top of the carrier plate 200, the padding plate 300 and the carrier plate 200 are limited by the second positioning mechanism to avoid relative displacement of the two along the horizontal direction, the padding plate 300 is provided with a product placing area 301 matched with a product to be tested, the product placing area 301 is provided with a third positioning mechanism for positioning the product to be tested, the product to be tested is placed on the product placing area 301, a frame of the product to be tested is limited by the third positioning mechanism, and then the cover plate 400 presses the product to be tested. The cover plate 400 is limited by the third positioning mechanism and the base plate 300 to prevent the third positioning mechanism and the base plate 300 from relative displacement along the horizontal direction, the test window 402 corresponding to the product placement area 301 is arranged on the cover plate 400, and the cover plate 400 is fixed on the base 100 through the cover plate fixing mechanism 107.
As a further explanation of the above-described embodiments, specific structures of the respective components will be described below.
The base 100 is structured as shown in fig. 3 and fig. 4, two sides of the top of the base 100 are high and low, the middle low region forms a set of first recesses 101 with opposite sides open, the region of the first recess 101 is used for mounting the carrier 200, two sides of the top are high and are respectively provided with a cover fixing mechanism 107, and the cover fixing mechanisms 107 are used for fixing the edge sides of the cover 400. A first positioning mechanism for support plate 200 and base 100 are spacing includes: the first positioning pin 103 is arranged on the first concave part 101, and the first positioning hole 205 is arranged on the carrier plate 200 and matched with the first positioning pin 103; or, the first positioning mechanism includes a first positioning pin disposed on the carrier plate 200 and a first positioning hole disposed on the base 100 and matched with the first positioning pin. The carrier 200 is embedded in the first recess 101, the carrier 200 is limited by the cooperation of the first positioning pin 103 and the first positioning hole 205, and the two sidewalls of the first recess 101 also limit the carrier 200, thereby effectively preventing the carrier 200 from moving horizontally relative to the base 100. The bottom of the base 100 is provided with a mounting base 109, and the mounting base 109 is used for connecting and matching with a push-pull force tester.
As shown in fig. 5, the carrier 200 has a structure, a second recess 201 is formed in a middle area of a top of the carrier 200, and a first positioning hole 205 is formed beside the second recess 201, in this embodiment, the second recess 201 is rectangular. The second positioning mechanism for limiting the carrier plate 200 and the backing plate 300 comprises: second positioning pins 204 disposed at four corners of the second recess 201 on the carrier 200, and second positioning holes 303 disposed at four corners of the rectangular pad 300 and matched with the second positioning pins 204; or, the second positioning mechanism includes a second positioning pin disposed on the 300 backing plate and a second positioning hole disposed on the carrier 200 and matched with the second positioning pin.
Further, in order to increase the relative position fixing stability of the carrier plate 200 and the cushion plate 300, a first through hole 203 may be further formed in the second recessed portion 201, and a second through hole 302 may be formed in a corresponding position on the cushion plate 300, and the carrier plate 200 and the cushion plate 300 are locked by a fastener passing through the first through hole 203 and the second through hole 302, for example: the first through hole 203 and the second through hole 302 are both threaded holes, and the fasteners are screws or bolts.
The structure of the pad 300 is as shown in fig. 6 and 7, the middle area of the pad 300 is a product placement area 301, the product placement area 301 on each pad 300 is designed according to the shape of the to-be-tested product to be placed, when the push-pull force test needs to be performed on the to-be-tested products of different models, only the pad 300 matched with the to-be-tested products needs to be replaced, and the base 100, the carrier 200 and the cover plate 400 in the embodiment are of a general structure, so that the high cost of the product configuration of the clamping fixture in the prior art is reduced. The product placement area 301 is provided with a third positioning mechanism for positioning the frame of the product to be tested and the cover plate 400, the third positioning mechanism includes a third positioning pin 304 arranged in the product placement area 301, and the cover plate 400 is provided with a third positioning hole 403 matched with the third positioning pin 304. The backing plate 300 is embedded in the second recessed portion 201 of the carrier plate 200, the top surface of the backing plate 300 is flush with the top surface of the carrier plate 200, a product to be tested is flatly laid on the top surface of the backing plate 300, a product unit to be tested for push-pull force needs to correspond to the position of the product placement area 301, and a frame of the product to be tested is limited by the third positioning pin 304 to prevent the frame from moving.
The cover plate 400 is constructed as shown in fig. 8, a third recess 401 recessed downward is formed in a middle region of the cover plate 400, the third recess 401 is located to correspond to the product placement region 301 on the pad plate 300, a test window 402 is formed in a bottom surface of the third recess 401, and third positioning holes 403 may be opened at opposite ends of the bottom surface of the third recess 401. The cover plate 400 is provided with a first mounting hole 404 at a position outside the third recess 401 for mating with the base 100.
After the structures of the accessories are assembled as required, the position of the product to be tested can be fixed, but in order to further increase the accuracy and stability of the position fixing and avoid the occurrence of tiny movement, the structure of each accessory is further optimally designed as follows in the embodiment.
First vacuum adsorption hole 102 is seted up at the bottom surface center of the first depressed part 101 of base 100, and the inside of base 100 sets up the gas circuit passageway, and the one end and the first vacuum adsorption hole 102 of gas circuit passageway correspond the intercommunication, and evacuation joint 106 is connected to the other end of gas circuit passageway, and evacuation joint 106 is used for connecting the trachea of evacuation equipment. A second vacuum suction hole 202 is formed in the center of the second recess 201 of the carrier 200, and the second vacuum suction hole 202 and the first vacuum suction hole 102 are correspondingly connected. A plurality of third vacuum adsorption holes 305 are formed in the product placement area 301 of the base plate 300, the positions of the third vacuum adsorption holes 305 correspond to a plurality of product units on a product to be tested one by one, namely, the third vacuum adsorption holes 305 are used for adsorbing the product units on the product to be tested one by one, and the third vacuum adsorption holes 305 and the second vacuum adsorption holes 202 are communicated in a mutually corresponding manner. After the evacuation joint 106 of base 100 is connected outside evacuation equipment and is carried out the evacuation, the product of awaiting measuring of placing on product placement area 301 firmly adsorbs on backing plate 300 under third vacuum adsorption hole 305 negative pressure, can make backing plate 300 firmly adsorb on support plate 200 and make support plate 200 firmly adsorb on base 100 simultaneously, fix a position and utilize the evacuation to adsorb the fixing to the product of awaiting measuring of trial product frame through third pilot pin 304, the small removal that the product of awaiting measuring probably exists has further been avoided.
Further, considering that the product to be tested is a semiconductor plastic package product with a frame, the frame is in a metal sheet shape, the position of the third vacuum adsorption hole 305 exactly corresponds to each plastic package product unit, in order to form a better adsorption positioning effect, a support boss 306 higher than the top surface of the backing plate 300 is arranged on the top surface of the product placement area 301 of the backing plate 300, a support boss 306 is arranged beside each third vacuum adsorption hole 305, the support boss 306 exactly supports the frame of the product to be tested, and the third vacuum adsorption hole 305 is designed into a structure as shown in fig. 7, that is, the third vacuum adsorption hole 305 includes a groove 3052 lower than the surface of the backing plate 300 and a vent 3051 communicated with the groove 3052, the vent 3051 is arranged on the bottom surface of the groove 3052, the groove 3052 in this embodiment is cross-shaped, and the adsorption area can be effectively increased.
As a further optimization of the above-mentioned scheme, for facilitating the assembly of the cover plate 400 and the base 100, and simultaneously for solving the problem that the pressing plate is pressed down by automatic control of the machine table in the prior art, once the position deviation occurs, the press-fit mechanism of the cover plate 400 is easily damaged by pressure, which is additionally arranged on the base 100 in the embodiment, and the specific description is as follows:
the lifting mechanism and the regulating valve 104 for controlling the lifting mechanism to lift are arranged on the base 100, the lifting mechanism is connected with the bottom of the cover plate fixing mechanism 107, the lifting of the cover plate fixing mechanism 107 can be controlled by manually rotating the regulating valve 104, the manual control mode can be adjusted in time according to the position condition observed at any time in use, and the cover plate 400 can be prevented from accidentally crushing a to-be-tested product in the pressing process. In order to facilitate the installation of the cover plate 400 on the base 100, cover plate insertion slots 108 are respectively formed on the oppositely arranged cover plate fixing mechanisms 107, the edge of the cover plate 400 is inserted into the cover plate insertion slot 108 along the horizontal direction, second mounting holes (not shown in the drawings) are formed on the cover plate fixing mechanisms 107 corresponding to the first mounting holes 404, and the cover plate 400 is inserted into the first mounting holes 404 and the second mounting holes through fasteners (such as positioning screws 105) and fixed on the cover plate fixing mechanisms 107.
Further, for can fix a position to accurate position fast when apron 400 inserts, spacing spout 405 is seted up separately at the both ends at apron 400 top, the one end of spacing spout 405 is the opening end, the other end forms spacing portion, be equipped with the gag lever post (not marking in the figure) of perpendicular to base 100 top surface on apron fixed establishment 107, this gag lever post is at apron 400 along the insertion of apron insertion slot 108 in-process, apron 400 can not play the effect of blockking when not reaching preset position yet, when apron 400 inserts preset position in the apron insertion slot 108, the contact of gag lever post and the spacing portion of spacing spout 405 just carries on spacingly to the inserted position of apron 400.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a push-pull power test clamping tool which characterized in that: the device comprises a base, a carrier plate, a base plate, a cover plate and a cover plate fixing mechanism for fixing the cover plate on the base; the carrier plate is arranged on the base, and the base plate is arranged on the carrier plate;
the clamping jig further comprises a first positioning mechanism for limiting the relative displacement between the carrier plate and the base and a second positioning mechanism for limiting the relative displacement between the base plate and the carrier plate;
the test device comprises a base plate and is characterized in that a product placing area matched with a to-be-tested product is arranged on the base plate, a third positioning mechanism used for positioning the to-be-tested product is arranged in the product placing area, the cover plate covers the base plate through the third positioning mechanism, and a test window corresponding to the product placing area is arranged on the cover plate.
2. The clamping jig for testing push-pull force according to claim 1, wherein: the first positioning mechanism comprises a first positioning pin arranged on the base and a first positioning hole which is arranged on the carrier plate and matched with the first positioning pin; or, first positioning mechanism including set up in first pilot pin on the support plate and set up in on the base and with first pilot pin assorted first locating hole.
3. The clamping jig for testing push-pull force as claimed in claim 1, wherein: the second positioning mechanism comprises a second positioning pin arranged on the carrier plate and a second positioning hole which is arranged on the backing plate and matched with the second positioning pin; or the second positioning mechanism comprises a second positioning pin arranged on the backing plate and a second positioning hole arranged on the carrier plate and matched with the second positioning pin.
4. The clamping jig for testing push-pull force according to claim 1, wherein: the third positioning mechanism comprises a third positioning pin arranged in the product placing area, and a third positioning hole matched with the third positioning pin is formed in the cover plate.
5. The clamping jig for testing push-pull force as claimed in claim 1, wherein: the base is provided with a lifting mechanism and a regulating valve for controlling the lifting mechanism to lift, and the lifting mechanism is connected with the cover plate fixing mechanism.
6. The clamping jig for testing push-pull force according to claim 1, wherein: the cover plate fixing mechanism is respectively arranged at two opposite ends of the base, a cover plate insertion groove is formed in the cover plate fixing mechanism, a first installation hole is formed in the cover plate, a second installation hole corresponding to the first installation hole is formed in the cover plate fixing mechanism, the cover plate is inserted along the cover plate insertion groove, and the cover plate is inserted into the first installation hole and the second installation hole through fasteners and fixed on the cover plate fixing mechanism.
7. The clamping jig for testing push-pull force of claim 6, wherein: offer spacing spout on the apron, the one end of spacing spout is the opening end, and the other end forms spacing portion, be equipped with the gag lever post on the apron fixed establishment, the apron inserts when predetermineeing the position in the apron insertion groove, the gag lever post with spacing portion contact is right the apron carries on spacingly.
8. The clamping jig for testing push-pull force according to claim 1, wherein: the base is provided with a first vacuum adsorption hole, an air channel is arranged in the base, one end of the air channel is correspondingly communicated with the first vacuum adsorption hole, and the other end of the air channel is connected with a vacuumizing connector; the carrier plate is provided with a second vacuum adsorption hole, the second vacuum adsorption hole is communicated with the first vacuum adsorption hole, the product placing area of the base plate is provided with a plurality of third vacuum adsorption holes, the third vacuum adsorption holes are used for adsorbing a plurality of product units on a product to be tested in a one-to-one correspondence mode, and the third vacuum adsorption holes are communicated with the second vacuum adsorption hole correspondingly.
9. The clamping jig for testing push-pull force of claim 8, wherein: and the backing plate is provided with a supporting boss higher than the surface of the backing plate, and the supporting boss is positioned beside the third vacuum adsorption hole.
10. The clamping jig for testing push-pull force of claim 8, wherein: the third vacuum adsorption hole includes a groove lower than the surface of the pad plate and a vent hole communicated with the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222110977.1U CN218427828U (en) | 2022-08-11 | 2022-08-11 | Clamping jig for push-pull force test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222110977.1U CN218427828U (en) | 2022-08-11 | 2022-08-11 | Clamping jig for push-pull force test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218427828U true CN218427828U (en) | 2023-02-03 |
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ID=85093959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222110977.1U Active CN218427828U (en) | 2022-08-11 | 2022-08-11 | Clamping jig for push-pull force test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218427828U (en) |
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2022
- 2022-08-11 CN CN202222110977.1U patent/CN218427828U/en active Active
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