CN221056521U - Clamp for wafer test - Google Patents
Clamp for wafer test Download PDFInfo
- Publication number
- CN221056521U CN221056521U CN202322921525.6U CN202322921525U CN221056521U CN 221056521 U CN221056521 U CN 221056521U CN 202322921525 U CN202322921525 U CN 202322921525U CN 221056521 U CN221056521 U CN 221056521U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- clamping
- heat sink
- assembly
- assembly part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- IYZWUWBAFUBNCH-UHFFFAOYSA-N 2,6-dichlorobiphenyl Chemical compound ClC1=CC=CC(Cl)=C1C1=CC=CC=C1 IYZWUWBAFUBNCH-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model provides a clamp for wafer testing, and relates to the technical field of wafer testing. According to the utility model, the plurality of connecting rods are arranged at intervals along the circumferential direction of the cover plate and penetrate through the heat sink and the PCB, the top of each connecting rod is connected with the cover plate, and the bottom of each connecting rod is provided with an assembly part positioned in the through hole. The clamping components are connected with the heat sink and are provided with at least one clamping hook positioned in the through hole of the heat sink. The connecting rod is arranged to rotate under the stress to the assembly part and the clamping hook to be connected with the clamping assembly, so that the heat sink, the PCB board and the cover plate are connected, and the connecting rod is separated from the clamping assembly when rotating to the assembly part and the clamping hook to be separated, so that the heat sink and the PCB board are allowed to be separated. Above-mentioned technical scheme passes through the cooperation of joint subassembly with the connecting rod, not only can realize the connection of heat sink, PCB board and apron to the tie point of both is located the through-hole of heat sink, can not expose in the outside, so can not influence the aesthetic property of anchor clamps, and can make anchor clamps steadily place.
Description
Technical Field
The utility model relates to the technical field of wafer testing, in particular to a clamp for wafer testing.
Background
In the prior art, the heat sink, the PCB and the clamp are required to be connected through the connecting component in the wafer testing device, and under the general condition, the connecting component can be exposed outside after the heat sink, the PCB and the clamp are connected, so that the attractiveness of the wafer testing device can be affected, the clamp can not be stably placed, and the placement stability of the clamp is affected.
Disclosure of utility model
The utility model aims to provide a clamp for wafer testing, which solves the technical problem of unstable clamp placement in the prior art.
According to an object of the present utility model, there is provided a jig for wafer testing, comprising:
The heat sink, the PCB and the cover plate are sequentially arranged from bottom to top, a sealing cavity for placing a wafer is defined between the heat sink and the PCB, and the heat sink is provided with a through hole;
The connecting rods are arranged at intervals along the circumferential direction of the cover plate and penetrate through the heat sink and the PCB, the top of each connecting rod is connected with the cover plate, and the bottom of each connecting rod is provided with a fitting part positioned in the through hole;
the clamping assemblies are connected with the heat sink, each clamping assembly is arranged corresponding to one connecting rod, and each clamping assembly is provided with at least one clamping hook positioned in the through hole;
The connecting rod is arranged to be connected with the clamping assembly when the assembly is clamped with the clamping hook under the action of force, so that the heat sink, the PCB board and the cover plate are connected, and is separated from the clamping assembly when the assembly is separated from the clamping hook under the action of force, so that the heat sink is allowed to be separated from the PCB board.
Optionally, at least one boss is arranged on the top of the assembly, each boss is arranged corresponding to one of the hooks, and the assembly is arranged to be connected with the hooks when the connecting rod rotates to the upper surface of the boss to be abutted with the hooks.
Optionally, the upper surface of the boss is an inclined plane.
Optionally, the clamping assembly has two hooks oppositely arranged along a first direction, the assembly is located between the two hooks, the assembly has two oppositely arranged bosses, the connecting rod is configured to rotate to the two bosses of the assembly to be clamped with the corresponding hooks when the two bosses of the assembly are arranged along the first direction, and the two bosses of the assembly are separated from the corresponding hooks when the two bosses of the assembly are arranged along a direction perpendicular to the first direction.
Optionally, the two bosses are respectively arranged at two opposite sides of the connecting rod, and the inclined planes of the two bosses are opposite in inclination direction.
Optionally, a bolt hole is provided at the top of the connecting rod to rotate the connecting rod by inserting a wrench into the bolt hole.
Optionally, the assembly part is sleeved on the connecting rod, at least one first mounting hole is formed in the bottom of the connecting rod, and at least one second mounting hole matched with the first mounting hole is formed in the assembly part, so that the connecting rod and the assembly part can be connected through bolts penetrating through the first mounting hole and the second mounting hole.
Optionally, the number of the first mounting holes and the second mounting holes is two, and the two first mounting holes are arranged at intervals along the extending direction of the connecting rod.
Optionally, the clamping assembly further includes:
the clamping hook is formed by extending the mounting plate upwards.
Optionally, the mounting plate is provided with at least one third mounting hole, and the heat sink is provided with at least one fourth mounting hole matched with the third mounting hole, so that the clamping assembly is connected with the heat sink through bolts passing through the third mounting hole and the fourth mounting hole.
According to the utility model, the plurality of connecting rods are arranged at intervals along the circumferential direction of the cover plate and penetrate through the heat sink and the PCB, the top of each connecting rod is connected with the cover plate, and the bottom of each connecting rod is provided with an assembly part positioned in the through hole. The plurality of clamping components are connected with the heat sink, each clamping component is correspondingly arranged with one connecting rod, and each clamping component is provided with at least one clamping hook positioned in the through hole of the heat sink. The connecting rod is arranged to rotate under the stress to the assembly part and the clamping hook to be connected with the clamping assembly, so that the heat sink, the PCB board and the cover plate are connected, and the connecting rod is separated from the clamping assembly when rotating to the assembly part and the clamping hook to be separated, so that the heat sink and the PCB board are allowed to be separated. Above-mentioned technical scheme passes through the cooperation of joint subassembly with the connecting rod, not only can realize the connection of heat sink, PCB board and apron to the tie point of both is located the through-hole of heat sink, can not expose in the outside, so can not influence the aesthetic property of anchor clamps, and can make anchor clamps steadily place.
Further, at least one boss is arranged at the top of the assembly part, each boss is correspondingly arranged with one clamping hook, and the assembly part is connected with the clamping hook when the connecting rod rotates to the upper surface of the boss to be abutted with the clamping hook. The upper surface of boss is an inclined plane to can rotate gradually along the inclined plane to the position department with the trip joint of joint subassembly at the rotation in-process of connecting rod, there is a buffering process, be convenient for operate.
The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic block diagram of a fixture for wafer testing according to one embodiment of the utility model;
FIG. 2 is a schematic cross-sectional view of the clamp shown in FIG. 1;
FIG. 3 is a schematic enlarged view at A in FIG. 2;
FIG. 4 is a schematic connection diagram of the connecting rod and the clamping assembly of the clamp of FIG. 1;
FIG. 5 is a schematic block diagram of the fixture assembly of FIG. 1;
fig. 6 is a schematic block diagram of the clamping assembly of the clamp of fig. 1.
Reference numerals:
100-a clamp for wafer test, 10-a PCB board, 20-a cover plate, 40-a heat sink, 31-a connecting rod, 32-an assembly part, 33-a clamping component, 311-a bolt hole, 331-a clamping hook, 332-a mounting plate, 333-a third mounting hole, 321-a second mounting hole, 322-a boss, 323-an inclined plane,
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.
Unless specifically stated and limited otherwise, the term "coupled" and the like are to be construed broadly and may be, for example, fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.
Unless otherwise defined, all terms (including technical and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Fig. 1 is a schematic structural view of a jig 100 for wafer testing according to an embodiment of the present utility model, fig. 2 is a schematic sectional view of the jig 100 shown in fig. 1, fig. 3 is a schematic enlarged view at a in fig. 2, fig. 4 is a schematic connection view of a connection rod 31 and a clamping assembly 33 in the jig 100 shown in fig. 1, fig. 5 is a schematic structural view of an assembly 32 in the jig 100 shown in fig. 1, and fig. 6 is a schematic structural view of the clamping assembly 33 in the jig 100 shown in fig. 1. As shown in fig. 1 to 6, in this embodiment, a jig 100 for wafer testing includes a heat sink 40, a PCB board 10 and a cover plate 20 sequentially arranged from bottom to top, a sealing cavity for placing a wafer is defined between the heat sink 40 and the PCB board 10, and the heat sink 40 has a through hole. The fixture 100 further includes a plurality of connecting rods 31 and a plurality of clamping assemblies 33, the plurality of connecting rods 31 are arranged at intervals along the circumference of the cover plate 20 and penetrate through the heat sink 40 and the PCB board 10, the top of the connecting rods 31 is connected with the cover plate 20, and the bottom of the connecting rods 31 is provided with fittings 32 located in the penetrating holes. The plurality of clamping assemblies 33 are connected with the heat sink 40, each clamping assembly 33 is arranged corresponding to one connecting rod 31, and each clamping assembly 33 is provided with at least one clamping hook 331 positioned in the through hole. The connecting rod 31 is configured to be connected with the clamping assembly 33 when the assembly 32 is clamped with the clamping hook 331 under the stress, so as to connect the heat sink 40, the PCB 10 and the cover plate 20, and to be separated from the clamping assembly 33 when the assembly 32 is separated from the clamping hook 331, so as to allow the heat sink 40 to be separated from the PCB 10. Here, the connecting rod 31 may be turned by a wrench, and the hook 331 of the clamping assembly 33 penetrates into the through hole of the heat sink 40 from bottom to top.
This embodiment not only can realize the connection of heat sink 40, PCB board 10 and cover plate 20 through the cooperation of joint subassembly 33 and connecting rod 31 to the tie point of both is located the through-hole of heat sink 40, can not expose in the outside, so can not influence the aesthetic property of anchor clamps 100, and can make anchor clamps 100 steadily place.
In this embodiment, the cover plate 20 and the heat sink 40 are both disc-shaped, the plurality of connection rods 31 are arranged at intervals along the circumferential direction of the cover plate 20, and the plurality of clip assemblies 33 are arranged at intervals along the circumferential direction of the heat sink 40, so that the stability of the connection of the cover plate 20 with the PCB board 10 and the heat sink 40 can be ensured. In a preferred embodiment, the plurality of connection rods 31 are equally spaced along the circumferential direction of the cover plate 20.
In this embodiment, at least one boss 322 is disposed on top of the assembly 32, each boss 322 is disposed corresponding to one hook 331, and the assembly 32 is configured to connect with the hook 331 when the connecting rod 31 rotates to the upper surface of the boss 322 to abut against the hook 331. That is, the fitting 32 is rotated following the connecting rod 31. In a preferred embodiment, referring to fig. 5, the upper surface of the boss 322 has an inclined plane 323, so that the boss can gradually rotate along the inclined plane 323 to a position where the boss is clamped with the hook 331 of the clamping assembly 33 during the rotation of the connecting rod 31, so as to facilitate the operation. If the inclined plane 323 is not provided, the alignment between the fitting 32 and the hook 331 may occur, and the fitting 32 may not enter the hook 331 and may not be engaged with the hook 331, so that the relative arrangement of the connecting rod 31 and the engaging component 33 may need to be adjusted multiple times. In the process of rotating the assembly 32, the lower part of the inclined plane 323 firstly enters the hook part of the clamping hook 331, and the higher the inclined plane 323 is, the higher the inclined plane 323 is along with the continuous rotation until the inclined plane 323 is abutted with the clamping hook 331, the rotation is stopped, the connection between the connecting piece and the clamping assembly 33 is realized, and the connection between the heat sink 40 and the PCB 10 and the cover plate 20 is realized.
In this embodiment, the clamping assembly 33 has two hooks 331 oppositely arranged along the first direction, the fitting 32 is located between the two hooks 331, and has two oppositely arranged bosses 322, the connecting rod 31 is configured to rotate to the two bosses 322 of the fitting 32 to be clamped with the corresponding hooks 331 when arranged along the first direction, and the two bosses 322 of the fitting 32 are separated from the corresponding hooks 331 when arranged along the direction perpendicular to the first direction. Here, the first direction is the left-right direction in fig. 3. That is, when the fitting 32 is rotated to the arrangement direction of the two bosses 322 to coincide with the arrangement direction of the two hooks 331 of the clip assembly 33, the fitting 32 and the clip assembly 33 are in the clip state, and when the fitting 32 is rotated to the arrangement direction of the two bosses 322 to be perpendicular to the arrangement direction of the two hooks 331 of the clip assembly 33, the fitting 32 and the clip assembly 33 are in the unlock state, and the heat sink 40 and the clip assembly 33 can be taken out together from below. Here, the connection rod 31 is not protruded from the surface of the cover plate 20 at the top thereof after the installation is completed, and the aesthetic appearance can be further improved.
In this embodiment, the extension length of the fitting 32 is greater than the distance between the two hooks 331, and the width of the fitting 32 is smaller than the distance between the two hooks 331, so that the connection rod 31 is connected to or disconnected from the clamping assembly 33 by the rotation of the fitting 32.
In this embodiment, two bosses 322 are respectively disposed on two opposite sides of the connecting rod 31, and inclined surfaces 323 of the two bosses 322 have opposite inclination directions, so that the two bosses 322 can be respectively clamped with the hooks 331 when the assembly 32 rotates along one direction.
In this embodiment, the top of the connecting rod 31 is provided with a bolt hole 311 to rotate the connecting rod 31 by inserting a wrench into the bolt hole 311. Here, in order to ensure whether the connecting rod 31 is engaged with or separated from the hook 331 of the engaging assembly 33 during rotation, the torque value of the connecting rod 31 can be confirmed by rotating the connecting rod 31, and the rotation angle of the connecting rod 31 can be controlled by setting the torque value by using a torque wrench or an automatic screw driving machine.
In this embodiment, the fitting 32 is sleeved on the connecting rod 31, at least one first mounting hole is formed in the bottom of the connecting rod 31, and at least one second mounting hole 321 matched with the first mounting hole is formed in the fitting 32, so that the connecting rod 31 and the fitting 32 can be connected through the first mounting hole and the second mounting hole 321 by bolts.
In this embodiment, the number of the first and second mounting holes 321 is two, and the two first mounting holes are arranged at intervals along the extending direction of the connecting rod 31. Here, the number of the first and second mounting holes 321 may be specifically set according to the height of the fitting 32. In other embodiments, the number of the second mounting holes 321 of the first mounting holes may be set to 1 or 3, or the like.
In this embodiment, the fastening assembly 33 further includes a mounting plate 332, and the fastening hook 331 is formed by extending the mounting plate 332 upward.
In this embodiment, the mounting plate 332 is provided with at least one third mounting hole 333, and the heat sink 40 is provided with at least one fourth mounting hole that mates with the third mounting hole 333 to connect the clip assembly 33 with the heat sink 40 by bolts passing through the third mounting hole 333 and the fourth mounting hole. Here, when the connection rod 31 is separated from the clip assembly 33, the heat sink 40 may be directly detached from the bottom, and the clip assembly 33 is not required to be separated from the heat sink 40.
In this embodiment, the number of the third mounting holes 333 and the fourth mounting holes is two, and the two third mounting holes 333 are respectively arranged on the left and right sides of the two hooks 331.
This embodiment is through the rotation of connecting rod 31 self to realize with the unblock and the locking of joint subassembly 33, thereby realize the unblock and the locking of heat sink 40, PCB board 10 and apron 20, the operation is more convenient, and easy realization, and life is longer, if one of them connecting rod 31 or joint subassembly 33 damage, can directly replace the damaged one, need not whole change, can save the cost.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.
Claims (10)
1. A fixture for wafer testing, comprising:
The heat sink, the PCB and the cover plate are sequentially arranged from bottom to top, a sealing cavity for placing a wafer is defined between the heat sink and the PCB, and the heat sink is provided with a through hole;
The connecting rods are arranged at intervals along the circumferential direction of the cover plate and penetrate through the heat sink and the PCB, the top of each connecting rod is connected with the cover plate, and the bottom of each connecting rod is provided with a fitting part positioned in the through hole;
the clamping assemblies are connected with the heat sink, each clamping assembly is arranged corresponding to one connecting rod, and each clamping assembly is provided with at least one clamping hook positioned in the through hole;
The connecting rod is arranged to rotate under the stress to connect the assembly part with the clamping component when the clamping hook is clamped, so that the heat sink, the PCB board and the cover plate are connected, and to disconnect the assembly part from the clamping component when the assembly part is rotated to disconnect the clamping hook, so that the heat sink and the PCB board are allowed to be separated.
2. The fixture of claim 1, wherein the fixture comprises a plurality of clamping plates,
The top of assembly part is equipped with at least one boss, every the boss with one trip is arranged correspondingly, the assembly part sets up to when the connecting rod rotates to the upper surface of boss with the trip butt time with the trip is connected.
3. A jig according to claim 2, wherein,
The upper surface of the boss is an inclined plane.
4. A clamp according to claim 3, characterized in that,
The clamping assembly is provided with two clamping hooks which are oppositely arranged along a first direction, the assembly part is positioned between the two clamping hooks and is provided with two bosses which are oppositely arranged, the connecting rod is arranged to rotate to the assembly part, when the two bosses of the assembly part are arranged along the first direction, the connecting rod is clamped with the corresponding clamping hooks, and when the two bosses of the assembly part are arranged along a direction perpendicular to the first direction, the two bosses of the assembly part are separated from the corresponding clamping hooks.
5. The fixture of claim 4, wherein the fixture comprises a plurality of clamping plates,
The two bosses are respectively arranged on two opposite sides of the connecting rod, and the inclined planes of the two bosses are opposite in inclination direction.
6. The jig according to any one of claims 1-4, wherein,
The top of connecting rod is equipped with the bolt hole to insert through the spanner in the bolt hole rotates the connecting rod.
7. The jig according to any one of claims 1-4, wherein,
The assembly part is sleeved on the connecting rod, at least one first mounting hole is formed in the bottom of the connecting rod, and at least one second mounting hole matched with the first mounting hole is formed in the assembly part, so that the connecting rod is connected with the assembly part through bolts penetrating through the first mounting hole and the second mounting hole.
8. The fixture of claim 7, wherein the fixture comprises a plurality of clamping plates,
The number of the first mounting holes and the second mounting holes is two, and the two first mounting holes are arranged at intervals along the extending direction of the connecting rod.
9. The clamp of any one of claims 1-4, wherein the clamping assembly further comprises:
the clamping hook is formed by extending the mounting plate upwards.
10. The fixture of claim 9, wherein the fixture comprises a plurality of clamping elements,
The mounting plate is provided with at least one third mounting hole, the heat sink is provided with at least one fourth mounting hole matched with the third mounting hole, and the clamping assembly is connected with the heat sink through bolts penetrating through the third mounting hole and the fourth mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322921525.6U CN221056521U (en) | 2023-10-30 | 2023-10-30 | Clamp for wafer test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322921525.6U CN221056521U (en) | 2023-10-30 | 2023-10-30 | Clamp for wafer test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221056521U true CN221056521U (en) | 2024-05-31 |
Family
ID=91203007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322921525.6U Active CN221056521U (en) | 2023-10-30 | 2023-10-30 | Clamp for wafer test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221056521U (en) |
-
2023
- 2023-10-30 CN CN202322921525.6U patent/CN221056521U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6213819B1 (en) | Detachable fan rack for computer | |
| CN112019135B (en) | Solar energy system anchor clamps | |
| CN221056521U (en) | Clamp for wafer test | |
| CN218434645U (en) | Cantilever crane sliding block assembly, cantilever crane assembly and operation machinery | |
| CN211916583U (en) | Workpiece clamping device capable of freely adjusting clamping height | |
| CN105863132A (en) | Board dry-hanging system and construction method thereof | |
| CN221446141U (en) | Wafer testing device | |
| CN220260267U (en) | Clamping tool for processing flat ejector rod head | |
| CN216264772U (en) | Machining center clamp and clamp machining center | |
| CN220356393U (en) | General buckling energy dissipation support connection tool | |
| CN211816988U (en) | Connecting component for earthquake resistance | |
| CN220625684U (en) | Battery cell vibration test tool | |
| CN213302267U (en) | Camera positioning jig | |
| CN221650063U (en) | Positioning clamp for high-strength bolt axial force and torque composite detection device | |
| CN219818664U (en) | Pipe support processing positioning jig | |
| CN214641349U (en) | Hopper welding tool | |
| CN108608607A (en) | A kind of grid mold fixing device for installing when the processing for automobile decoration grid | |
| CN218813667U (en) | End plate structure | |
| CN219532439U (en) | Detection jig and test platform with same | |
| CN220910201U (en) | Connecting loop for positioning hexagonal flange nut, hexagonal flange nut connecting assembly and workpiece connecting structure based on connecting assembly | |
| CN221039167U (en) | Connecting structure of wafer testing device and wafer testing device | |
| CN221639971U (en) | Box support clamp and anti-toppling device | |
| CN218990944U (en) | Vibrating rod quick assembly disassembly coupling mechanism and tamping device | |
| CN213574983U (en) | Basic connecting plate for mechanical parts | |
| CN221427078U (en) | Combined limiting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |