CN218003509U - Clamping device and flying probe test equipment - Google Patents

Abstract

The utility model discloses a clamping device and flying probe test equipment, clamping device includes: a fixing clamp extending in a first direction; the movable clamping piece comprises a base and a plurality of clamping parts, the base and the clamping parts extend along a first direction, and the plurality of clamping parts are sequentially arranged on the base along the first direction; and the driving part moves to link the base so as to drive the base to be close to or far away from the fixed clamping piece. The utility model discloses can promote the holistic rigidity of clamping device, reduce clamping device's deflection, guarantee that the clamp force is even.

Description

Clamping device and flying probe test equipment

Technical Field

The utility model belongs to the technical field of flying probe test machine technique and specifically relates to a clamping device and flying probe test equipment are related to.

Background

In the related art, a flying probe testing machine is provided with a clamp, the clamp is used for clamping and fixing a PCB (printed circuit board) in the flying probe testing machine for electrical testing, the clamp is divided into a fixed end and a movable end, the fixed end is used as a reference for positioning the PCB, the movable end is used for opening or clamping the PCB, and when the PCB with a large clamping area needs to be clamped, the clamp is correspondingly lengthened. However, when the clamp is lengthened to a certain length to clamp the PCB, the clamp will deform over time, resulting in uneven clamping force and unstable PCB fixation, thereby causing inaccurate test results.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a clamping device, clamping device can reduce the deflection of clamping piece, makes the clamp force of device even, and clamping stability is better.

The utility model discloses still aim at providing a flying probe test equipment to use foretell clamping device.

According to the utility model discloses clamping device, include: a fixed clamp extending in a first direction; the movable clamping piece comprises a base and a plurality of clamping parts, the base and the clamping parts extend along the first direction, and the plurality of clamping parts are sequentially arranged on the base along the first direction; the driving part is movably linked with the base to drive the base to be close to or far away from the fixed clamping piece.

According to the utility model discloses clamping device through including base and a plurality of clamping part with movable clamping piece setting, base and clamping part extend along the first direction, and a plurality of clamping parts are established on the base along the first direction in proper order, can promote the holistic rigidity of clamping device, reduce clamping device's deflection, guarantee that the clamp force is even.

In some embodiments, the clamping portion comprises: the bottom plate is stopped against the base; the top plate and the bottom plate are arranged at intervals along a second direction, and one end of the top plate, close to the fixed clamping piece, is bent to form a clamping end; and one end of the connecting plate is connected with the bottom plate, and the other end of the connecting plate is connected with the top plate.

In some embodiments, the bottom plate is provided with at least two first mounting holes arranged at intervals along the first direction, the base is provided with second mounting holes, the number of the second mounting holes is equal to that of the first mounting holes, the second mounting holes correspond to the first mounting holes one by one, and the clamping device further comprises fasteners arranged on the first mounting holes and the second mounting holes.

In some embodiments, at least two first positioning holes are formed in the bottom plate at intervals along the first direction, second positioning holes are formed in the base, the number of the second positioning holes is equal to that of the first positioning holes, the second positioning holes correspond to that of the first positioning holes one to one, the clamping device further comprises a positioning piece, one end of the positioning piece is arranged in the first positioning holes, and the other end of the positioning piece is arranged in the second positioning holes.

In some embodiments, the first positioning hole is disposed close to the first mounting hole, and a line connecting centers of the first positioning hole and the adjacent first mounting hole intersects with a side edge of the bottom plate disposed along the first direction.

In some embodiments, the connecting plate is provided with a guide hole, an axial direction of the guide hole is the same as a moving direction of the base, and the clamping device further comprises a guide member, which is arranged on the fixed clamping member and is slidably arranged on the guide hole.

In some embodiments, the connection plate comprises: the connecting plate comprises a connecting plate main body, wherein a through hole is formed in the connecting plate main body; the guide sleeve is sleeved in the through hole, and the guide hole is formed in the guide sleeve.

In some embodiments, the number of the guide holes is at least two, and the guide holes are spaced apart along the first direction, and the number of the guide pieces and the number of the guide holes are equal and correspond to one another.

In some embodiments, the clamping device further comprises an adapter, the adapter comprises a first part and a second part, the first part is connected to the base and extends along the direction close to the fixed clamping piece, the second part is connected to one end of the first part far away from the base, the second part extends along the first direction, and one end of the second part far away from the first part is connected to the driving part.

According to the utility model discloses flying probe test equipment, including the aforesaid clamping device.

According to the utility model discloses flying probe test equipment, the whole rigidity of this clamping device is stronger, can reduce clamping device's deflection, guarantees that PCB circuit board atress is even to make PCB circuit board more stable when the test.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a clamping device according to an embodiment of the present invention;

fig. 2 is an exploded view of a clamping device in an embodiment of the invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at III;

FIG. 4 is an enlarged partial schematic view at IV of FIG. 2;

fig. 5 is a bottom view of the clamping portion in the embodiment of the present invention.

Reference numerals are as follows:

100. a clamping device;

10. fixing the clamping member;

20. a movable clamp; 210. a base; 210a, a second mounting hole; 210b, a second positioning hole; 220. a clamping portion; 2201. a base plate; 2201a, a first mounting hole; 2201b, a first positioning hole; 2202. a top plate; 2202a, a clamping end; 2203. a connecting plate; 2203a, a guide hole; 22031. a connection plate main body; 22032. a guide sleeve;

30. a drive member;

40. a fastener; 50. a positioning member; 60. a guide member;

70. a transfer seat; 710. a first portion; 720. a second portion.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring now to fig. 1-5, a clamping device 100 according to an embodiment of the present invention is described.

As shown in fig. 1 and 2, a clamping device 100 according to an embodiment of the present invention includes: a fixed clamp 10, a movable clamp 20, a driving part 30.

The fixed clamp 10 extends in a first direction. The movable clamp 20 includes a base 210 and a plurality of clamping portions 220, the base 210 and the clamping portions 220 extend in a first direction, and the plurality of clamping portions 220 are sequentially disposed on the base 210 in the first direction. The driving part 30 moves the linkage base 210 to drive the base 210 to approach or separate from the fixed clamp 10.

The "first direction" may be specifically set according to circumstances, and for example, the "first direction" may refer to a left-right direction (see fig. 1). The fixing clamp 10 and the clamping portion 220 are used to clamp the side edge of a target object, "which may refer to an object that needs to be clamped, for example, the target object may be a PCB circuit board.

The clamping devices 100 may be used in pairs, for example, by clamping a target item with two clamping devices 100, one of the two clamping devices 100 clamping a lower edge of the target item and the other clamping a lower edge of the target item. When clamping the target object, the driving part 30 drives the base 210 to approach the fixed clamping member 10, and the fixed clamping member 10 and the plurality of clamping parts 220 together clamp the target object; when it is desired to release the target, the base 210 is driven away from the stationary clamp 10 by the drive member 30 and the target can be removed.

When the length of the target member is relatively long (the length of the target member may refer to a dimension in the first direction), since the movable clamping member 20 needs to be moved, higher rigidity is required, and by arranging the movable clamping member 20 to include the base 210 and the plurality of clamping portions 220, the length of each clamping portion 220 is relatively small, and rigidity is relatively strong, and at the same time, the clamping portions 220 are connected to the base 210, so that rigidity of the movable clamping member 20 as a whole is improved. When the length ratio of movable clamping piece 20 is longer, adopt the utility model discloses a movable clamping piece 20 can reduce movable clamping piece 20's deflection, and the target member ability atress is even when guaranteeing the clamping. For example, if the target component is a PCB, the movable clamping member 20 and the fixed clamping member 10 can ensure uniform clamping force and more stable PCB during electrical testing.

According to the utility model discloses clamping device 100 through setting up movable clamp 20 including base 210 and a plurality of clamping part 220, base 210 and clamping part 220 extend along the first direction, and a plurality of clamping parts 220 are established on base 210 along the first direction in proper order, can promote the holistic rigidity of clamping device 100, reduce clamping device 100's deflection, guarantee that the clamp force is even.

In some embodiments, as shown in fig. 3, the clamping portion 220 includes: bottom plate 2201, top plate 2202, connecting plate 2203. The bottom plate 2201 is stopped against the base 210. The top plate 2202 and the bottom plate 2201 are arranged at intervals along the second direction, and one end of the top plate 2202 close to the fixed clamping piece 10 is bent to form a clamping end 2202a. One end of the connecting plate 2203 is connected with the bottom plate 2201, and the other end is connected with the top plate 2202. That is, the bottom plate 2201, the top plate 2202, and the connecting plate 2203 make the entire clamp part 220U-shaped, and the rigidity of the clamp part 220 can be further improved.

For example, the bottom plate 2201 and the top plate 2202 are arranged horizontally, the connecting plate 2203 is arranged vertically, and the fixed clamp 10 may be a clamping plate, and the clamping end 2202a and the fixed clamp 10 cooperate to clamp the object when clamping the object.

In some embodiments, at least two first mounting holes 2201a are formed in the bottom plate 2201 at intervals along the first direction, second mounting holes 210a are formed in the base 210, the number of the second mounting holes 210a is equal to and corresponds to the number of the first mounting holes 2201a, the clamping device 100 further includes fasteners 40, and the fasteners 40 are formed in the first mounting holes 2201a and the second mounting holes 210 a. The base plate 2201 can be fixed on the base 210 by the mutual matching of the fastener 40 and the first mounting hole 2201a and the second mounting hole 210a, and the operation is simple by adopting the assembly mode.

For example, the fastener 40 may refer to a bolt, and the first and second mounting holes 2201a and 210a may refer to a screw hole. Alternatively, the fastening member 40 is a bolt, the first mounting hole 2201a and the second mounting hole 210a are light holes, the bolt is inserted into the two light holes, and one end of the bolt is connected with a nut. Further, the fastener 40 may also be referred to as a rivet or the like.

The number of the first mounting holes 2201a and the second mounting holes 210a may be two, three, four, etc., and correspondingly, the number of the fasteners 40 is equal to the number of the first mounting holes 2201a, and the connection between the base plate 2201 and the base 210 may be more reliable by increasing the number of the first mounting holes 2201a, the second mounting holes 210a and the fasteners 40.

In some embodiments, as shown in fig. 5, at least two first positioning holes 2201b are disposed on the bottom plate 2201 at intervals along the first direction, the base 210 is disposed with second positioning holes 210b, the number of the second positioning holes 210b is equal to and corresponding to the number of the first positioning holes 2201b, the clamping device 100 further includes a positioning element 50, one end of the positioning element 50 is disposed in the first positioning hole 2201b, and the other end of the positioning element 50 is disposed in the second positioning hole 210 b. The positioning member 50 can be positioned before the fastener 40 is installed by cooperating with the first positioning hole 2201b and the second positioning hole 210b, so that the installation of the fastener 40 is easier.

For example, the positioning element 50 may be a positioning pin, which is inserted through the first positioning hole 2201b and the second positioning hole 210 b. The number of the first positioning holes 2201b and the second positioning holes 210b may be two, three, four, etc., and correspondingly, the number of the positioning members 50 is equal to the number of the first positioning holes 2201b, and the positioning accuracy can be improved by increasing the number of the first positioning holes 2201b, the second positioning holes 210b, and the positioning members 50.

In some embodiments, the locating pins may be cylindrical pins, stud pins. The positioning member 50 may be a positioning block or the like.

In some embodiments, as shown in fig. 4, the first positioning hole 2201b is disposed near the first mounting hole 2201a, and a line connecting centers of the first positioning hole 2201b and the adjacent first mounting hole 2201a intersects with a side edge of the bottom plate 2201 disposed along the first direction. The "side of the bottom plate 2201 disposed along the first direction" may refer to the front side or the rear side of the bottom plate 2201, and in this way, when the fastener 40 is mounted on the first mounting hole 2201a and the positioning element 50 is mounted on the first positioning hole 2201b, the position can be limited in the left-right direction and the front-rear direction, which provides a better limiting effect.

In some embodiments, as shown in fig. 2 and 3, the connecting plate 2203 is provided with a guide hole 2203a, an axial direction of the guide hole 2203a is the same as the moving direction of the base 210, and the clamping device 100 further includes a guide 60, wherein the guide 60 is provided on the fixed clamping member 10 and slidably provided on the guide hole 2203a. The "moving direction of the base 210" may refer to a front-back direction, that is, the fixed clamping member 10 and the movable clamping member 20 clamp the target object in the front-back direction, and the guide member 60 and the guide hole 2203a are slidably engaged to provide guidance for the clamping portion 220, thereby improving clamping reliability.

In some embodiments, the guide 60 may be a circular guide post, a square guide post, or the like.

In some embodiments, as shown in fig. 3, the connection plate 2203 comprises a connection plate body 22031 and a guide sleeve 22032. The connecting plate main body 22031 is provided with a through hole 22031a. The guide sleeve 22032 is disposed in the through hole 22031a, and a guide hole 2203a is formed in the guide sleeve 22032. It can be understood that the connection plate 2203 is two separate components (i.e., the connection plate main body 22031 and the guide sleeve 22032), the guide hole 2203a is arranged on a separate component, and when the guide hole 2203a is damaged due to long-term use, only the guide sleeve 22032 needs to be replaced, so that the maintenance cost can be reduced.

In some embodiments, the number of the guide holes 2203a is at least two, and the guide members 60 and the guide holes 2203a are equal and corresponding to each other. The guide effect can be further improved by increasing the number of the guide holes 2203a and the guide members 60, making the movement of the clamping part 220 more stable.

For example, the guide hole 2203a and the guide member 60 may be provided at both ends of the clamping portion 220, so that the guide can be performed at both ends of the clamping portion 220, and the movement of the clamping portion 220 is more stable and reliable.

In some embodiments, as shown in fig. 2 and 4, the clamping device 100 further includes an adapter 70, where the adapter 70 includes a first portion 710 and a second portion 720, the first portion 710 is connected to the base 210 and extends in a direction close to the fixed clamp 10, the second portion 720 is connected to an end of the first portion 710 far from the base 210, the second portion 720 extends in a first direction, and an end of the second portion 720 far from the first portion 710 is connected to the driving member 30. By providing the adapter 70 to include the first portion 710 and the second portion 720, the clamping device 100 may be more compact.

For example, the driving member 30 may be a telescopic driving member, a telescopic end of the telescopic driving member is disposed toward the rear side, the first portion 710 extends in the front-rear direction, the second portion 720 is connected to the rear end of the first portion 710, the second portion 720 extends in the left-right direction, and the left end of the second portion 720 is connected to the telescopic end, so that the overall structure of the driving member 30, the first portion 710 and the second portion 720 is more compact. Further, when the projection of the driving member 30, the first portion 710 and the second portion 720 on the horizontal plane is referred to as a first projection, the projection of the fixed clamp 10 on the horizontal plane is referred to as a second projection, and the projection of the movable clamp 20 on the horizontal plane is referred to as a third projection, the first projection can overlap with the second projection and the third projection, and therefore the entire clamp device 100 can be made more compact.

In some embodiments, the driving member 30 may be any one of an electric push rod, an air cylinder, and a hydraulic cylinder.

According to the utility model discloses flying probe test equipment, including clamping device 100 in the preceding.

The clamping devices 100 may be used to clamp a PCB, for example, the clamping devices 100 are two, and the two clamping devices 100 are arranged at an interval along the vertical direction, so that the upper and lower edges of the PCB can be clamped, and the stability and reliability of the PCB during electrical testing can be ensured.

According to the utility model discloses flying probe test equipment, this clamping device 100 whole rigidity is stronger, can reduce the deflection, guarantees that PCB circuit board atress is even to make PCB circuit board more stable when the test.

Other configurations and operations of flying probe test devices according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. A clamping device, comprising:

a fixed clamp extending in a first direction;

the movable clamping piece comprises a base and a plurality of clamping portions, the base and the clamping portions extend along the first direction, the clamping portions are sequentially arranged on the base along the first direction, and the clamping portions comprise: the clamping device comprises a base plate, a top plate and a connecting plate, wherein the base plate is abutted against the base, the top plate and the base plate are arranged at intervals along a second direction, one end of the top plate, close to the fixed clamping piece, is bent to form a clamping end, one end of the connecting plate is connected with the base plate, the other end of the connecting plate is connected with the top plate, a guide hole is formed in the connecting plate, the axis direction of the guide hole is in the same direction as the moving direction of the base, and the guide piece is arranged on the fixed clamping piece and is arranged on the guide hole in a sliding mode;

the driving part is movably linked with the base to drive the base to be close to or far away from the fixed clamping piece.

2. The clamping device as claimed in claim 1, wherein the bottom plate is provided with at least two first mounting holes spaced along the first direction, the base is provided with second mounting holes, the number of the second mounting holes is equal to the number of the first mounting holes and corresponds to the number of the first mounting holes, and the clamping device further comprises fasteners, and the fasteners are arranged on the first mounting holes and the second mounting holes.

3. The clamping device as claimed in claim 2, wherein the bottom plate is provided with at least two first positioning holes spaced along the first direction, the base is provided with second positioning holes, the number of the second positioning holes is equal to that of the first positioning holes, and the second positioning holes correspond to the first positioning holes one to one, the clamping device further comprises a positioning member, one end of the positioning member is arranged in the first positioning holes, and the other end of the positioning member is arranged in the second positioning holes.

4. The clamping device as claimed in claim 3, wherein the first positioning hole is disposed adjacent to the first mounting hole, and a line connecting centers of the first positioning hole and the adjacent first mounting hole intersects with a side edge of the bottom plate disposed along the first direction.

5. The clamping device as claimed in claim 1, wherein the connecting plate comprises:

the connecting plate main body is provided with a through hole;

the guide sleeve is sleeved in the through hole, and the guide hole is formed in the guide sleeve.

6. The clamping device as claimed in claim 1, wherein the number of the guide holes is at least two and is spaced apart along the first direction, and the number of the guide members and the number of the guide holes are equal and correspond one to one.

7. The clamping device as claimed in claim 1 further comprising an adapter, said adapter comprising a first portion and a second portion, said first portion being attached to said base and extending in a direction towards said stationary clamp member, said second portion being attached to an end of said first portion remote from said base, said second portion extending in said first direction, an end of said second portion remote from said first portion being attached to said drive member.

8. Flying probe test device, characterized in that it comprises a gripping device according to any one of claims 1 to 7.

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