CN113933548A

CN113933548A - Chip test fixture

Info

Publication number: CN113933548A
Application number: CN202111204110.6A
Authority: CN
Inventors: 崔超; 肖勇; 赵云; 林伟斌; 王浩林
Original assignee: CSG Electric Power Research Institute
Current assignee: CSG Electric Power Research Institute
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-01-14

Abstract

The application relates to the technical field of chip testing, in particular to a chip testing clamp which comprises a fixed table, a placing table and a pressing mechanism, wherein the fixed table is arranged on the placing table; the placing table is arranged on the fixed table; the pressing mechanism comprises a connecting column, a supporting column, a fixing plate, a clamping block, a first sliding block, a limiting rod, a first spring and a clamping plate; the connecting column and the supporting column are fixed on the fixed table; the fixing plate is sleeved on the connecting column, the first end of the fixing plate is rotatably connected with the supporting column, and the second end of the fixing plate is connected with the clamping plate through a first spring; a pressing space for pressing the chip is formed between the clamping plate and the placing table; the first end of the limiting rod is connected with the clamping plate, and the second end of the limiting rod penetrates through the fixing plate in a sliding mode; the fixed plate is provided with a first sliding chute, the first sliding block is connected with the clamping block, and the connecting column is provided with a clamping groove; the first sliding block moves in the first sliding groove, so that the clamping block is clamped and matched with the clamping groove. The technical problem that the chip is prone to shifting due to the fact that clamping effect of the chip is poor in the prior art is effectively solved.

Description

Chip test fixture

Technical Field

The application relates to the technical field of chip testing, in particular to a chip testing clamp.

Background

A chip is an integrated circuit in which a circuit is fabricated on a surface of a semiconductor chip, and in order to check whether the chip can be normally used, a reliability test of the chip is required. Reliability testing is the activity performed to evaluate the reliability of a product's functionality in all circumstances, such as expected use, transportation or storage, over a specified lifetime. The product is exposed to natural or artificial environmental conditions to be subjected to the action of the product, so as to evaluate the performance of the product under the environmental conditions of actual use, transportation and storage, and analyze and research the influence degree of environmental factors and the action mechanism thereof. The conditions of the reaction product in the use environment are accelerated by simulating the conditions of high temperature, low temperature, high temperature and high humidity, temperature change and the like in the climate environment by using various environment test equipment, so as to verify whether the reaction product reaches the quality target expected in research and development, design and manufacture, and evaluate the whole product to determine the reliability and the service life of the product.

Existing test fixtures utilize a receiving structure to place the alignment member and the chip carrier plate, enabling the alignment member to contact the chip carrier plate. Meanwhile, the fine adjustment structure is arranged on the base and used for adjusting and fixing the positions of the calibration piece and the chip supporting plate, so that the effect of improving the test accuracy is achieved; however, the existing test fixture has a single structural design, so that the clamping of the chip is not firm enough, and the chip is easy to shift.

Disclosure of Invention

In view of this, an object of the present application is to provide a chip testing fixture, which effectively solves the technical problem in the prior art that a chip is easy to shift due to poor clamping effect on the chip.

In order to achieve the purpose, the application provides the following technical scheme:

a chip test fixture comprises a fixed table, a placing table and a pressing mechanism;

the placing table is arranged on the fixed table;

the pressing mechanism comprises a connecting column, a supporting column, a fixing plate, a clamping block, a first sliding block, a limiting rod, a first spring and a clamping plate;

the connecting column and the supporting column are fixed on the fixed table;

the fixing plate is sleeved on the connecting column, a first end of the fixing plate is rotatably connected with the supporting column, and a second end of the fixing plate is connected with the clamping plate through the first spring;

the clamping plate is positioned right above the placing table, and a pressing space for pressing the chip is formed between the clamping plate and the placing table;

the first end of the limiting rod is connected with the clamping plate, and the second end of the limiting rod penetrates through the fixing plate in a sliding mode;

a first sliding groove corresponding to the first sliding block is formed in the fixing plate, the first sliding block is connected with the clamping block, and a clamping groove corresponding to the clamping block is formed in the connecting column;

the first sliding block moves in the first sliding groove, so that the clamping block is in clamping fit with the clamping groove.

Preferably, in the above chip testing jig, a push-pull rod is further included;

a first through hole is formed in the fixing plate, and a gear is rotatably arranged on the inner wall of the first through hole;

a second through hole corresponding to the first through hole is formed in the fixture block, and a first rotating rod is arranged on the inner wall of the second through hole;

a tooth surface in meshing transmission connection with the gear is arranged at the first end of the push-pull rod, and the second end of the push-pull rod penetrates through the first through hole and the second through hole and extends to the outside;

the push-pull rod is provided with a long round hole, and the first rotating rod is movably arranged in the long round hole.

Preferably, in the above chip testing jig, a positioning mechanism is further included;

the positioning mechanism comprises a driving assembly, a disc, a sliding rod, a sliding rail, a second sliding block and a positioning block;

the slide rail is arranged on the fixed table;

the sliding rails are multiple, and the second sliding block is arranged in each sliding rail in a sliding manner;

the number of the positioning blocks is multiple, and the positioning blocks are connected with the second sliding blocks in a one-to-one correspondence manner;

the positioning blocks are arranged around the placing table, and each positioning block is higher than the placing table;

the disc is rotatably arranged in the fixed table, and the driving assembly is connected with the disc;

the disc is provided with a plurality of arc-shaped grooves, and the sliding rod is arranged in each arc-shaped groove in a sliding manner;

the sliding rods are connected with the second sliding blocks in a one-to-one corresponding mode.

Preferably, in the above chip testing jig, the driving assembly includes a first rotating shaft and a second rotating shaft;

a cavity is formed in the fixed table, and the first rotating shaft and the second rotating shaft are rotatably arranged in the cavity;

a driving wheel is arranged at the first end of the first rotating shaft, and the second end of the first rotating shaft extends to the outside of the fixed table;

and a driven wheel in meshed transmission connection with the driving wheel is arranged at the first end of the second rotating shaft, and the second end of the second rotating shaft is connected with the disc.

Preferably, in the above chip testing jig, a second end of the first rotating shaft is provided with a turntable.

Preferably, in the chip testing jig, one surface of each positioning block, which faces each other, is provided with a first cushion block;

and a second cushion block is arranged at the bottom of the clamping plate.

Preferably, in the above chip test fixture, a mounting seat is further included;

the fixed station is arranged on the mounting seat.

Preferably, in the above chip testing jig, the mounting seat and the fixing table are connected by a connecting mechanism;

the connecting mechanism comprises a second spring, a movable rod, a first movable plate, a second movable plate, a fixed clamp and a driving rod;

a groove is formed in the mounting seat, and a T-shaped groove is formed in the bottom of the fixed table;

the first end of the second spring is connected with the bottom wall of the groove, and the second end of the second spring is connected with the movable rod;

the groove is provided with a movable hole communicated with the outside, and the driving rod is arranged in the movable hole;

the bottom end of the movable rod is provided with a trapezoidal groove matched with the driving rod, and the top end of the movable rod extends into the T-shaped groove;

the first movable plate is arranged at the top of the movable rod, and the second movable plate is arranged on the side wall of the movable rod;

the two fixing clamps are symmetrically hinged to two sides of the T-shaped groove;

each of the fixing clips is located between the first movable plate and the second movable plate.

Preferably, in the above chip test jig, the groove is shaped in a cross shape.

Preferably, in the above chip test fixture, the fixing clip is T-shaped;

the hinge point of the fixing clamp is positioned at the middle position;

and one opposite ends of the two fixing clamps are positioned between the first movable plate and the second movable plate.

Compared with the prior art, the beneficial effects of this application are:

the application provides a chip test fixture, when needs are fixed the chip, rotate the fixed plate, let the bottom of splint and the surface laminating of chip, then promote fixture block and first slider along first spout motion for the fixture block card advances the inner wall of draw-in groove, thereby play the effect of the position of fixed plate, in order to guarantee the tight effect of clamp to the chip. The first sliding groove and the first sliding block are matched for use, so that the clamping block can be prevented from being separated from the fixing plate; the clamping plate is matched with the second spring for use, so that chips with different thicknesses can be clamped and fixed; through the design of gag lever post, the condition that splint take place the skew takes place when can preventing the spring from reciprocating, is favorable to guaranteeing the splint to the tight effect of clamp of chip, has solved the technical problem that the poor chip skew easily that leads to of the tight effect of clamp to the chip that exists among the prior art effectively.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a chip testing fixture according to an embodiment of the present disclosure;

fig. 2 is a top view of a chip testing fixture according to an embodiment of the present disclosure;

fig. 3 is a cross-sectional view of a chip testing fixture according to an embodiment of the present disclosure;

fig. 4 is a cross-sectional view of a pressing mechanism of a chip testing fixture according to an embodiment of the present disclosure;

fig. 5 is a perspective view of a pressing mechanism of a chip testing fixture according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a positioning mechanism of a chip test fixture according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a connection mechanism of a chip test fixture according to an embodiment of the present application.

In the figure:

1. a fixed table; 2. a slide rail; 3. connecting columns; 4. a support pillar; 5. a turntable; 6. a mounting seat; 7. a disc; 8. a fixing plate; 9. a second slider; 10. positioning blocks; 11. a limiting wheel; 12. a placing table; 13. a second chute; 14. a support plate; 15. a first movable plate; 16. a movable rod; 17. a second movable plate; 18. a movable hole; 19. a drive rod; 20. a trapezoidal groove; 21. a second spring; 22. a groove; 23. a T-shaped groove; 24. a cavity; 25. a fixing clip; 26. a first cushion block; 27. a limiting rod; 28. a first spring; 29. a splint; 30. a second cushion block; 31. a first through hole; 32. a slide bar; 33. an arc-shaped slot; 34. a clamping block; 35. a second through hole; 36. a third through hole; 37. a card slot; 38. a push-pull rod; 39. a long round hole; 40. a gear; 41. a first chute; 42. a first slider; 43. a first rotating shaft; 44. a driving wheel; 45. a second rotating shaft; 46. a driven wheel.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

A chip is an integrated circuit in which a circuit is fabricated on a surface of a semiconductor chip, and in order to check whether the chip can be normally used, a reliability test of the chip is required. Reliability testing is the activity performed to evaluate the reliability of a product's functionality in all circumstances, such as expected use, transportation or storage, over a specified lifetime. The product is exposed to natural or artificial environmental conditions to be subjected to the action of the product, so as to evaluate the performance of the product under the environmental conditions of actual use, transportation and storage, and analyze and research the influence degree of environmental factors and the action mechanism thereof. The conditions of the reaction product in the use environment are accelerated by simulating the conditions of high temperature, low temperature, high temperature and high humidity, temperature change and the like in the climate environment by using various environment test equipment, so as to verify whether the reaction product reaches the quality target expected in research and development, design and manufacture, and evaluate the whole product to determine the reliability and the service life of the product. Existing test fixtures utilize a receiving structure to place the alignment member and the chip carrier plate, enabling the alignment member to contact the chip carrier plate. Meanwhile, the fine adjustment structure is arranged on the base and used for adjusting and fixing the positions of the calibration piece and the chip supporting plate, so that the effect of improving the test accuracy is achieved; however, the existing test fixture has a single structural design, so that the clamping of the chip is not firm enough, and the chip is easy to shift. In addition, the existing test fixture is found to be inconvenient to operate and time-consuming and labor-consuming due to the fact that the device is used for rotating two bolts to complete accurate positioning of a placed chip, and therefore the problem of time waste is caused. And because the device can not be installed and dismantled conveniently, still have the inconvenient problem of use. The embodiment provides a chip test fixture, which effectively solves the technical problems that in the prior art, the clamping effect of the chip is poor, so that the chip is easy to deviate, the positioning and debugging of the chip are inconvenient, and the mounting and dismounting are inconvenient.

Referring to fig. 1 to 7, an embodiment of the present application provides a chip testing fixture, which includes a fixing table 1, a placing table 12, and a pressing mechanism; the placing table 12 is arranged on the fixed table 1; the pressing mechanism comprises a connecting column 3, a supporting column 4, a fixing plate 8, a clamping block 34, a first sliding block 42, a limiting rod 27, a first spring 28 and a clamping plate 29; the connecting column 3 and the supporting column 4 are both fixed on the fixed table 1; the fixed plate 8 is sleeved on the connecting column 3, the first end of the fixed plate 8 is rotatably connected with the supporting column 4, and the second end of the fixed plate 8 is connected with the clamping plate 29 through the first spring 28; the clamping plate 29 is positioned right above the placing table 12, and a pressing space for pressing the chip is formed between the clamping plate and the placing table 12; the first end of the limiting rod 27 is connected with the clamping plate 29, and the second end of the limiting rod 27 penetrates through the fixing plate 8 in a sliding mode; a first sliding groove 41 corresponding to the first sliding block 42 is arranged on the fixed plate 8, the first sliding block 42 is connected with the clamping block 34, and a clamping groove 37 corresponding to the clamping block 34 is arranged on the connecting column 3; the first slider 42 moves in the first slide groove 41, so that the latch 34 is snap-fitted into the latch groove 37.

More specifically, the middle position of the fixing plate 8 is provided with a third through hole 36, the fixing plate 8 is sleeved on the connecting column 3 through the third through hole 36, and the outer diameter of the connecting column 3 is smaller than the inner diameter of the third through hole 36, so that the fixing plate 8 can have a certain space to adjust the position up and down along the connecting column 3; the limit rod 27 is positioned inside the first spring 28, and a first end of the limit rod 27 is preferably connected with the center of the clamping plate 29; the first sliding block 42 and the first sliding groove 41 are both in a T shape, which is beneficial to guiding the first sliding block 42 to move along the first sliding groove 41, and meanwhile, the first sliding block 42 can be prevented from falling off from the first sliding groove 41; the latch 34 is located above the fixed plate 8.

This embodiment is when needs fix the chip, rotates fixed plate 8, lets the bottom of splint 29 and the surface laminating of chip, then promotes fixture block 34 and first slider 42 and moves along first spout 41 for fixture block 34 card advances the inner wall of draw-in groove 37, thereby plays the effect of the position of fixed plate 8, in order to guarantee the tight effect of clamp to the chip. The first sliding groove 41 and the first sliding block 42 are used in cooperation, so that the fixture block 34 can be prevented from being separated from the fixing plate 8; the clamping plate 29 is matched with the second spring 21 for use, so that chips with different thicknesses can be clamped and fixed; through the design of gag lever post 27, splint 29 takes place the condition emergence of skew when can preventing that the spring from reciprocating, is favorable to guaranteeing the splint 29 to the tight effect of clamp of chip, has solved effectively among the prior art and has led to the technical problem of the easy skew of chip to the tight effect of clamp of chip is poor.

Further, in the present embodiment, a push-pull rod 38 is further included; a first through hole 31 is formed in the fixing plate 8, and a gear 40 is rotatably arranged on the inner wall of the first through hole 31; the fixture block 34 is provided with a second through hole 35 corresponding to the first through hole 31, and the inner wall of the second through hole 35 is provided with a first rotating rod; a first end of the push-pull rod 38 is provided with a tooth surface in meshing transmission connection with the gear 40, and a second end of the push-pull rod 38 extends to the outside through the first through hole 31 and the second through hole 35; the push-pull rod 38 is provided with a long round hole 39, and the first rotating rod is movably arranged in the long round hole 39. When the chip needs to be fixed, the fixing plate 8 is rotated to enable the bottom of the clamping plate 29 to be attached to the surface of the chip, then the push-pull rod 38 is pulled to enable the push-pull rod to move from one end of the oblong hole 39 to the other end under the cooperation of the gear 40, and further the first sliding block 42 and the clamping block 34 are driven to move, so that the clamping block 34 is clamped into the inner wall of the clamping groove 37, and the purpose of fixing is achieved.

More specifically, the arrangement of the push-pull rod 38 not only facilitates the worker to push the fixture block 34 to be clamped in the clamping groove 37, but also facilitates the worker to pull the fixture block 34 out of the clamping groove 37, and meanwhile, the moving range of the fixture block 34 can be effectively limited; the first through hole 31, the second through hole 35 and the third through hole 36 are formed to prevent the fixed plate 8 and the latch 34 from being interfered when moving or fixing.

Further, in the present embodiment, a positioning mechanism is further included; the positioning mechanism comprises a driving assembly, a disc 7, a sliding rod 32, a sliding rail 2, a second sliding block 9 and a positioning block 10; the slide rail 2 is arranged on the fixed table 1; the number of the slide rails 2 is multiple, and a second slide block 9 is arranged in each slide rail 2 in a sliding manner; a plurality of positioning blocks 10 are provided, and the positioning blocks 10 are correspondingly connected with the second sliding blocks 9 one by one; a plurality of positioning blocks 10 are arranged around the placing table 12, and each positioning block 10 is higher than the placing table 12; the disc 7 is rotatably arranged in the fixed table 1, and the driving assembly is connected with the disc 7; a plurality of arc-shaped grooves 33 are arranged on the disc 7, and a sliding rod 32 is arranged in each arc-shaped groove 33 in a sliding manner; the sliding rods 32 are connected with the second sliders 9 in a one-to-one correspondence. Through the rotation of drive assembly control disc 7, because the design of arc wall 33, when disc 7 rotates, because arc wall 33 and slide rail 2's spacing, can drive slide bar 32 along sharp activity, thereby realize slide bar 32, along rectilinear movement when second slider 9 and locating piece 10 three, and the power size that each locating piece 10 of all directions received is impartial moreover, when making locating piece 10 carry out positioning adjustment to the chip position, can the atress fix a position the chip centre gripping uniformly, be favorable to guaranteeing the locate effect to the chip.

More specifically, the number of the sliding rods 32, the number of the second sliders 9, the number of the positioning blocks 10, the number of the sliding rails 2 and the number of the arc-shaped grooves 33 are all the same, and the corresponding sliding rods 32, the corresponding second sliders 9 and the corresponding positioning blocks 10 are fixedly connected in sequence from bottom to top; the top of the positioning block 10 is higher than the top surface of the placing table 12, so that the positioning block 10 is in contact with and abutted against the chip, and a positioning clamping space is formed on one opposite side of each positioning block 10; each slide rail 2 comprises two guide pieces which are symmetrically arranged; two ends of the second sliding block 9 are respectively connected with the two guide pieces in a sliding manner. Each guide all is the U type, all forms second spout 13 in each guide, and setting up through two guides both can restrict the moving direction of second slider 9, has good direction effect, can make things convenient for second slider 9 to be connected fixedly with the slide bar 32 of below again, satisfies second slider 9's installation demand. The supporting plate 14 is fixedly arranged in the cavity 24; the disc 7 is positioned above the supporting plate 14, and the top of the supporting plate 14 is fixedly provided with a limiting wheel 11; the bottom of the disc 7 is provided with a limit groove matched with the limit wheel 11; the outer wall of the limiting wheel 11 is in meshing transmission connection with the inner wall of the limiting groove through a tooth surface. Can be on not influencing disc 7 pivoted basis through setting up of spacing wheel 11 and spacing groove, can produce ascending holding power to disc 7 to effectively share the bearing of second pivot 45, spacing wheel 11 and spacing groove through the meshing transmission connection can utilize the accurate butt joint of latch and tooth's socket to realize disc 7 can steadily rotate simultaneously.

Further, in the present embodiment, the driving assembly includes a first rotating shaft 43 and a second rotating shaft 45; a cavity 24 is arranged in the fixed table 1, and the first rotating shaft 43 and the second rotating shaft 45 are rotatably arranged in the cavity 24; a driving wheel 44 is arranged at a first end of the first rotating shaft 43, and a second end of the first rotating shaft 43 extends to the outside of the fixed table 1; a driven wheel 46 in meshed transmission connection with the driving wheel 44 is arranged at a first end of the second rotating shaft 45, and a second end of the second rotating shaft 45 is connected with the disc 7. Through rotatory first pivot 43, then action wheel 44 is under the drive of first pivot 43, it rotates from driving wheel 46 to drive, from driving wheel 46 rethread second pivot 45 drive disc 7 and rotate, realize slide bar 32 equally, along rectilinear movement when second slider 9 and locating piece 10 three, so that each locating piece 10 can atress fix a position the chip centre gripping uniformly, not only replaced the mode that adopts the rotation bolt to fix a position the chip, and the advantages of convenient operation have been had, the inconvenient technical problem of location debugging has been solved effectively among the prior art, and can also guarantee the locate effect to the chip effectively, be favorable to guaranteeing the accuracy of the data result that the chip carries out reliability testing.

More specifically, the first rotating shaft 43 and the second rotating shaft 45 are vertically connected through a driving wheel 44 and a driven wheel 46 in a transmission way; the number of the positioning blocks 10 is four; the four positioning blocks 10 are arranged in a central symmetry with respect to the center of the placement table 12. That is, the number of the sliding rods 32, the number of the second sliding blocks 9, the number of the sliding rails 2 and the number of the arc-shaped grooves 33 are four, wherein the four sliding rails 2 are distributed in a cross shape, and the chips can be positioned and clamped from four different directions through the four positioning blocks 10, so that the chips are effectively prevented from being loosened, and a good positioning and clamping effect is achieved.

Further, in the present embodiment, the second end of the first rotating shaft 43 is provided with the rotating disc 5. The contact area between the working personnel and the first rotating shaft 43 can be effectively increased through the arrangement of the rotary disc 5, the working personnel can control the first rotating shaft 43 to rotate more easily, and the convenience is increased.

More specifically, first pivot 43 horizontal setting, the vertical setting of second pivot 45, the setting has both satisfied second pivot 45 and has extended along vertical direction and the disc 7 fixed connection of top like this, can make the second end of first pivot 43 wear out from the lateral wall of fixed station 1 again to the staff can be followed the rotatory first pivot 43 of lateral wall of fixed station 1 on one side, the location condition of observing the chip from placing platform 12 at the top of fixed station 1 on one side, has easy operation, adjusts saving time and the effectual advantage of location.

Further, in this embodiment, the facing surfaces of the positioning blocks 10 are respectively provided with a first cushion block 26; the bottom of the clamping plate 29 is provided with a second pad 30. The first cushion block 26 and the second cushion block 30 are both made of rubber materials, the rubber has the characteristics of skid resistance and friction resistance, and the design of the first cushion block 26 can effectively protect the chip when the positioning block 10 accurately positions and adjusts the chip, so that the chip cannot be damaged; the design of the second cushion block 30 can protect the chip when the chip is fixed by the clamping plate 29, and the chip is prevented from being crushed.

Further, in the present embodiment, the present invention further includes a mounting seat 6; the fixed table 1 is mounted on the mount 6. Be equipped with a plurality of installation ears on mount pad 6, the installation ear is equipped with the mounting hole, passes the mounting hole through the fastener and can realize mount pad 6 and external connection, can conveniently be fixed in operation platform with fixed station 1 through setting up of mount pad 6 on, is favorable to guaranteeing that fixed station 1 is in stable environment and carries out the operation.

Further, in the present embodiment, the mounting seat 6 and the fixed table 1 are connected by a connection mechanism; the connecting mechanism comprises a second spring 21, a movable rod 16, a first movable plate 15, a second movable plate 17, a fixed clamp 25 and a driving rod 19; a groove 22 is formed in the mounting seat 6, and a T-shaped groove 23 is formed in the bottom of the fixed table 1; a first end of the second spring 21 is connected with the bottom wall of the groove 22, and a second end of the second spring 21 is connected with the movable rod 16; the groove 22 is provided with a movable hole 18 communicated with the outside, and a driving rod 19 is arranged in the movable hole 18; the bottom end of the movable rod 16 is provided with a trapezoidal groove 20 matched with the driving rod 19, and the top end of the movable rod 16 extends into a T-shaped groove 23; the first flap 15 is mounted on the top of the movable bar 16, and the second flap 17 is mounted on the sidewall of the movable bar 16; the number of the fixing clamps 25 is two, and the two fixing clamps 25 are symmetrically hinged to two sides of the T-shaped groove 23; each of the fixing clips 25 is located between the first movable plate 15 and the second movable plate 17. When the fixed platform 1 and the mounting seat 6 need to be fixedly connected, an upward supporting force is provided for the movable rod 16 through the arranged second spring 21, and then the second movable plate 17 provides a supporting force for one end of the fixed clamp 25, so that two ends of the fixed clamp 25 are positioned at a horizontal position or the other end of the fixed clamp 25 is contacted and abutted against the inner wall of the T-shaped groove 23, and the inner wall of the T-shaped groove 23 is clamped; when needs are dismantled fixed station 1, with actuating lever 19 inside promotion, let actuating lever 19 drive movable rod 16 move down to let first fly leaf 15 move down, thereby give the decurrent pressure of one end of fixation clamp 25, so that the other end perk of fixation clamp 25, thereby make fixed station 1 break away from mount pad 6, realize the purpose of dismantling, in order to reach convenient to use's effect.

More specifically, the inclined direction of the trapezoidal groove 20 is gradually inclined downwards in a direction away from the movable hole 18, so that when the driving rod 19 is pushed inwards, the driving rod 16 is driven to move downwards, thereby controlling the first movable plate 15 to move downwards to be contacted and pressed against the fixed clamp 25; when the driving rod 19 is pulled out, the movable rod 16 moves up under the elastic action of the spring.

Further, in the present embodiment, the shape of the groove 22 is in particular cross-shaped. The cross-shaped groove 22 can provide a position for installing the second spring 21 so that the second spring 21 can extend and contract in the vertical direction, and can provide a space for the driving rod 19 to move in the horizontal direction, so as to satisfy the requirement that the driving rod 19 pushes the control movable rod 16 inwards to move, and also satisfy the requirement that the movable rod 16 moves in the vertical direction.

More specifically, the cross-shaped groove 22 can meet the respective activity requirements of the second spring 21, the driving rod 19 and the movable rod 16, and the respective activity requirements do not interfere with each other, so that the structure is compact, and the occupied space is small.

Further, in the present embodiment, the fixing clip 25 is T-shaped; the hinge point of the fixing clip 25 is located at an intermediate position; the opposite ends of the two fixing clips 25 are located between the first movable plate 15 and the second movable plate 17. Through the fixation clamp 25 of T type both can provide corresponding position and the fixed station 1 is articulated, can satisfy again and promote the opposite one end of fixation clamp 25 and realize the demand that the other end perk or the decline of fixation clamp 25 to two symmetries set up the fixation clamp 25 and can increase the connection area of contact between fixed station 1 and the mount pad 6 effectively, are favorable to guaranteeing the connection stability between fixed station 1 and the mount pad 6.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chip test fixture is characterized by comprising a fixed table, a placing table and a pressing mechanism;

the placing table is arranged on the fixed table;

the connecting column and the supporting column are fixed on the fixed table;

2. The chip test fixture of claim 1, further comprising a push-pull rod;

3. The chip testing fixture of claim 1, further comprising a positioning mechanism;

the slide rail is arranged on the fixed table;

4. The chip test fixture of claim 3, wherein the drive assembly includes a first spindle and a second spindle;

5. The chip testing jig of claim 4, wherein the second end of the first shaft is provided with a turntable.

6. The chip testing jig of claim 5, wherein a first cushion block is disposed on a surface of each positioning block facing each other;

and a second cushion block is arranged at the bottom of the clamping plate.

7. The chip test fixture of any one of claims 1-6, further comprising a mount;

the fixed station is arranged on the mounting seat.

8. The chip test fixture of claim 7, wherein the mounting base and the fixed platen are connected by a connection mechanism;

9. The chip testing jig of claim 8, wherein the recess is shaped in particular as a cross.

10. The chip testing jig of claim 9, wherein the retaining clip is T-shaped;

the hinge point of the fixing clamp is positioned at the middle position;