CN107102178B

CN107102178B - Clamp

Info

Publication number: CN107102178B
Application number: CN201710375096.3A
Authority: CN
Inventors: 陈玉梁
Original assignee: Hisense Broadband Multimedia Technology Co Ltd
Current assignee: Hisense Broadband Multimedia Technology Co Ltd
Priority date: 2017-05-24
Filing date: 2017-05-24
Publication date: 2020-07-24
Anticipated expiration: 2037-05-24
Also published as: CN107102178A

Abstract

The invention discloses a clamp, relates to the technical field of clamping equipment, and can solve the problem of low testing efficiency caused by uncertain chip positions in the prior art. The clamp of the invention comprises: the carrier comprises a bearing area for bearing the workpiece; the clamping assembly comprises a first clamping unit and a second clamping unit, the first clamping unit is used for blocking the workpieces from moving towards a first direction and a second direction which are perpendicular to each other on the bearing area, the second clamping unit is provided with notches which correspond to the bearing area one by one, and each notch is internally provided with two clamping parts, one clamping part is used for blocking the workpieces on the corresponding bearing area from moving towards the first direction in the opposite direction, and the other clamping part is used for blocking the workpieces on the corresponding bearing area from moving towards the second direction in the opposite direction; and the driving assembly is connected with the second clamping unit and is used for driving the second clamping unit to move. The invention is used for clamping workpieces.

Description

Clamp

Technical Field

The invention relates to the technical field of clamping equipment, in particular to a clamp.

Background

A chip of about 0.5mm × 1.0.0 mm is used in a Transmitter Optical Subassembly (TOSA), and since dispersion cost loss of the TOSA is too large in long-distance transmission and some chips cannot meet requirements, the chips need to be tested in advance to screen out the chips capable of meeting the requirements.

During testing, in the prior art, a chip 01 needs to be placed in a groove 03 on a carrier 02 shown in fig. 1 and 2, in order to be placed in the groove, the size of the groove 03 is usually larger than that of the chip 01, that is, the position of the chip 01 after being placed in the groove 03 is uncertain, so that the carrier 02 needs to be moved to align the chip 01 to a probe (not shown in the figure) above, and then the probe can power on the chip 01 for testing, which results in low testing efficiency.

Disclosure of Invention

The embodiment of the invention provides a clamp, which can solve the problem of low test efficiency caused by uncertain chip positions in the prior art.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

a clamp, comprising: a carrier comprising a carrying area for carrying a workpiece; the clamping assembly comprises a first clamping unit and a second clamping unit, the first clamping unit is used for blocking the workpiece to move towards a first direction and a second direction which are perpendicular to each other on the bearing area, the second clamping unit is provided with notches which correspond to the bearing area one by one, two clamping parts are arranged in each notch, one clamping part is used for blocking the workpiece on the corresponding bearing area to move towards the first direction in the opposite direction, and the other clamping part is used for blocking the workpiece on the corresponding bearing area to move towards the second direction in the opposite direction; and the driving assembly is connected with the second clamping unit and is used for driving the second clamping unit to move.

According to the clamp provided by the embodiment of the invention, the carrier comprises a bearing area for bearing a workpiece; the clamping assembly comprises a first clamping unit and a second clamping unit, the first clamping unit is used for blocking the workpiece to move towards a first direction and a second direction which are perpendicular to each other on the bearing area, the second clamping unit is provided with notches which correspond to the bearing area one by one, two clamping parts are arranged in each notch, one clamping part is used for blocking the workpiece on the corresponding bearing area to move towards the reverse direction of the first direction, and the other clamping part is used for blocking the workpiece on the corresponding bearing area to move towards the reverse direction of the second direction; the driving assembly is connected with the second clamping unit and used for driving the second clamping unit to move, so when the clamp is applied to a chip testing process, the driving assembly can drive the second clamping unit to move towards a direction far away from the first clamping unit so that a chip can be placed between the first clamping unit and the second clamping unit, and then the driving assembly drives the second clamping unit to move towards a direction close to the first clamping unit until the first clamping unit can simultaneously block the chip from moving towards the first direction and the second direction on the bearing area, and the second clamping unit can simultaneously block the chip from moving towards the first direction and the second direction, namely the first clamping unit and the second clamping unit clamp the chip together, so that the position of the chip is determined and aligned with the probe above, and the position of the chip is prevented from being adjusted by moving the carrier, the testing efficiency is improved.

Drawings

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

FIG. 1 is a schematic diagram of a carrier for carrying a chip in the prior art;

FIG. 2 is an enlarged view of the portion M of FIG. 1;

FIG. 3 is a schematic view of a fixture according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the portion N of FIG. 3;

FIG. 5 is another angle schematic of FIG. 3 with the baffle removed;

FIG. 6 is an exploded view of a clamp according to an embodiment of the present invention;

FIG. 7 is another angle schematic of FIG. 6;

FIG. 8 is another angle schematic of FIG. 5;

FIG. 9 is a cross-sectional view of FIG. 3;

fig. 10 is an enlarged view of the X portion of fig. 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of the present invention, and not full 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 invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "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 only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. 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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 3 to 10 show a specific embodiment of a clamp according to an embodiment of the present invention, where the clamp includes: the carrier comprises a carrier 1, wherein the carrier 1 comprises a bearing area A for bearing a workpiece; the clamping assembly 2 comprises a first clamping unit 21 and a second clamping unit 22, the first clamping unit 21 is used for blocking the workpieces to move towards a first direction a and a second direction B which are perpendicular to each other on the bearing area A, the second clamping unit 22 is provided with notches B which correspond to the bearing area A one by one, two clamping parts C are arranged in each notch B, one of the clamping parts C is used for blocking the workpieces on the corresponding bearing area A to move towards the first direction a in the reverse direction, and the other clamping part C is used for blocking the workpieces on the corresponding bearing area A to move towards the second direction B in the reverse direction; and the driving assembly 3 is connected with the second clamping unit 22 and used for driving the second clamping unit 22 to move towards or away from the first clamping unit 21.

According to the clamp provided by the embodiment of the invention, the carrier 1 comprises a bearing area A for bearing a workpiece; the clamping assembly 2 comprises a first clamping unit 21 and a second clamping unit 22, the first clamping unit 21 is used for blocking the workpieces to move towards a first direction a and a second direction B which are perpendicular to each other on the bearing area A, the second clamping unit 22 is provided with notches B which correspond to the bearing area A one by one, two clamping parts C are arranged in each notch B, one of the clamping parts C is used for blocking the workpieces on the corresponding bearing area A to move towards the first direction a in the reverse direction, and the other clamping part C is used for blocking the workpieces on the corresponding bearing area A to move towards the second direction B in the reverse direction; the driving assembly 3 is connected to the second clamping unit 22, and is configured to drive the second clamping unit 22 to move towards or away from the first clamping unit 21, so that when the fixture is applied to a chip testing process, the driving assembly 3 can drive the second clamping unit 22 to move towards a direction away from the first clamping unit 21, so that the chip 4 can be placed between the first clamping unit 21 and the second clamping unit 22, and then the driving assembly 3 can drive the second clamping unit 22 to move towards a direction close to the first clamping unit 21, until the first clamping unit 21 can simultaneously block the chip 4 from moving towards the first direction a and the second direction b on the carrying area a, and the second clamping unit 22 can simultaneously block the chip 4 from moving towards the first direction a and the second direction b, that is, the first clamping unit 21 and the second clamping unit 22 can jointly clamp the chip 4, so that the position of the chip 4 is determined and aligned with the probe (not shown in the figure) above, and further, the position of the chip 4 is prevented from being adjusted by moving the carrier 1, and the testing efficiency is improved.

It should be noted that the clamp can also be used for clamping other workpieces, and is not limited to the chip 4. F in fig. 4 is light emitted from the chip 4.

The carrier areas a are preferably multiple, ten are illustrated in fig. 3, so that multiple chips 4 can be clamped simultaneously, and the multiple chips 4 can be loaded and unloaded simultaneously, which further improves the testing efficiency compared with one loading and unloading of the multiple chips 4.

The driving assembly 3 may be a rotating motor (not shown), for example, the rotating motor is connected to the second clamping unit and is used for driving the second clamping unit to rotate in forward and reverse directions so as to drive the two clamping portions C to rotate in a direction close to or away from the first clamping unit 21; however, in the present embodiment, the driving assembly 3 includes a first driving unit 31 and a second driving unit 32, as shown in fig. 3, the first driving unit 31 and the second driving unit 32 are both connected to the second clamping unit, the first driving unit 31 is used for driving the second clamping unit to move in the first direction a or the reverse direction of the first direction a, and the second driving unit 32 is used for driving the second clamping unit to move in the second direction b or the reverse direction of the second direction b, compared with the case that the second clamping unit is driven to rotate by a rotating motor, in the present embodiment, the first driving unit 31 and the second driving unit 32 drive the second clamping unit to move in two directions in a one-to-one correspondence, so that the position accuracy of the second clamping unit can be higher, and the clamping effect can be improved.

Specifically, referring to fig. 5 to 9, the first driving unit 31 includes a first slider 311 and a first knob 312, one end of the first knob 312 is connected to the first slider 311 through a thread, an axis of the first knob 312 is parallel to the first direction a, the carrier 1 is provided with a first sliding slot 11, the first slider 311 is in sliding fit in the first sliding slot 11, the first knob 312 is rotatably connected to the carrier 1, and when the first knob 312 rotates relative to the carrier 1, the first knob 312 can drive the first slider 311 to slide in the first sliding slot 11; the second driving unit 32 includes a second slider 321 and a second knob 322, one end of the second knob 322 is connected to the second slider 321 through a thread, an axial line of the second knob 322 is parallel to the second direction b, the first slider 311 is provided with a second sliding slot D, the second slider 321 is in sliding fit with the second sliding slot D, the second knob 322 is rotatably connected to the first slider 311, the second clamping unit is fixed to the second slider 321, and when the second knob 322 rotates relative to the first slider 311, the second knob 322 can drive the second slider 321 to slide in the second sliding slot D; therefore, the second knob 322 is rotated to drive the second slider 321 to move in the second direction b or in the opposite direction of the second direction b, so as to drive the second clamping unit to move in the second direction b or in the opposite direction of the second direction b; the first knob 312 is rotated to drive the first slider 311 to move in the first direction a or the reverse direction of the first direction a, so as to drive the second slider 321 and the second clamping unit to move in the first direction a or the reverse direction of the first direction a, thereby realizing the tight pushing and positioning of the chip 4 in two directions, and the structure is compact and the volume is small.

In order to make the chip 4 better flatly stick to the carrying area a, in this embodiment, an absorption hole 12 is disposed in the carrier 1, one end of the absorption hole 12 penetrates through the carrying area a, and the other end is used for being connected with a vacuum generator (not shown in the figure), so that when the vacuum generator is turned on, vacuum is formed in the absorption hole 12, and the chip 4 is absorbed, and then the chip 4 can be better flatly stick to the carrying area a.

When bearing the weight of district A when a plurality of, adsorption hole 12 also is a plurality of, is equipped with the convergent hole 13 in the carrier 1, and a plurality of bearing the weight of district A are link up to a plurality of top one-to-one in a plurality of adsorption holes 12, and the bottom all is connected with vacuum generator through convergent hole 13, and the length of a plurality of adsorption holes 12 can be shortened in the setting of convergent hole 13 to processing technology has been simplified.

Further, referring to fig. 6, the plurality of adsorption holes 12 all penetrate through the same side face E of the carrier 1, the first clamping unit 21 includes a baffle 211 and a plurality of baffles 212, the plurality of baffles 212 are all disposed above the carrier 1 and are used for blocking the workpieces on the plurality of carrying areas a from moving towards the second direction b in a one-to-one correspondence manner, the baffle 211 is fixed on the side face E and covers the plurality of adsorption holes 12, the baffle 211 is used for blocking the workpieces on the plurality of carrying areas a from moving towards the first direction a, that is, the adsorption holes 12 are surrounded by the baffle 211 and the carrier 1, compared with the case that the adsorption holes 12 are directly formed in the carrier 1, the processing difficulty of the adsorption holes 12 is reduced in this embodiment.

Because there is a gap between the thread on the first knob 312 and the thread on the first slider 311, and there is a gap between the thread on the second knob 322 and the thread on the second slider 321, the position of the second clamping unit is not accurate, so that the stability of clamping the chip 4 by the second clamping unit is not sufficient, and in order to improve the stability of clamping the chip 4 by the second clamping unit, referring to fig. 6 to 9, in this embodiment, a first spring 5 is disposed between the first slider 311 and the carrier 1, the first spring 5 is disposed along the first direction a, and one end of the first spring abuts against the first slider 311, the other end abuts against the carrier 1, and the first spring 5 is in a compressed state; a second spring 6 is arranged between the second slider 321 and the first slider 311, the second spring 6 is arranged along the second direction b, one end of the second spring is abutted to the first slider 311, the other end of the second spring is abutted to the second slider 321, and the second spring 6 is in a compression state, so that under the elastic action of the first spring 5, a gap between a thread on the first knob 312 and a thread on the first slider 311 can be eliminated, and under the elastic action of the second spring 6, a gap between a thread on the second knob 322 and a thread on the second slider 321 can also be eliminated, so that the position of the second clamping unit is more accurate, and the stability of the second clamping unit for clamping the chip 4 is improved.

Further, the first slider 311 and the carrier 1 are both provided with a first groove 7 at a position corresponding to the first spring 5, one end of the first spring 5 abuts against the bottom surface of the first groove 7 on the first slider 311, and the other end abuts against the bottom surface of the first groove 7 on the carrier 1; the second slider 321 has a second groove (not shown in the figure) corresponding to the second spring 6, one end of the second spring 6 abuts against the bottom surface of the second groove, the other end abuts against the first slider 311, namely, the two ends of the first spring 5 are respectively located in the first groove 7, and one end of the second spring 6 is located in the second groove, so that the positions of the first spring 5 and the second spring 6 are more stable, and the structure of the clamp is more stable. It should be noted that the bottom surface of the groove refers to a surface opposite to the opening of the groove.

The two clamping portions C may be two adjacent inner walls in the notch B, or may be two elastic members disposed in the notch B. When the clamping parts C are the inner walls of the notches B, the clamping parts C in each notch B cannot be ensured to contact corresponding workpieces due to the limitation of process precision, and all the workpieces cannot be clamped; when the clamping portions C are elastic, if the clamping portions C in some of the notches B do not contact the corresponding workpiece, the clamping portions C contacting the workpiece are elastically deformed to adjust the position of the second clamping unit, so that each clamping portion C can contact the corresponding workpiece, and further all the workpieces can be clamped, and therefore the clamping portions C are preferably elastic.

Referring to fig. 4, preferably, the second clamping unit 22 is plate-shaped, the clamping portion C is a spring plate, and the spring plate and the plate-shaped second clamping unit are integrally formed, and in actual production, the whole of the spring plate and the plate-shaped second clamping unit is made of a high-elasticity material after being subjected to warp cutting and quenching, so that the processing is more convenient.

The cover plate 8 is arranged above the carrier 1, and the lower surface of the cover plate 8 is in contact with the second clamping unit, so that the second clamping unit, the first sliding block 311, the second sliding block 321 and other components can be prevented from falling out of the opening of the first sliding groove 11, and the structure of the clamp is more stable.

Because chip 4 need guarantee certain temperature when testing, consequently make carrier 1 and temperature control device contact usually, carrier 1 can transmit temperature control device's heat or cold volume to chip 4 like this to control chip 4's temperature, carrier 1 is preferred to be made by the beryllium copper material that conducts heat soon in this embodiment, can promote the control effect to chip 4 temperature like this.

The specific use process of the clamp is as follows:

1. starting a vacuum generator, and dispersing vacuum into each adsorption hole 12 through the confluence hole 13;

2. clamping the chip 4 onto the bearing area A through a pair of artificial tweezers, and adsorbing and flatly pasting the chip 4 on the carrier 1 made of beryllium copper material;

3. by adjusting the first knob 312 and the second knob 322, the first slider 311 and the second slider 321 drive the second clamping unit to simultaneously clamp and position each chip 4.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A clamp, comprising:

a carrier comprising a carrying area for carrying a workpiece;

the clamping assembly comprises a first clamping unit and a second clamping unit, the first clamping unit is used for blocking the workpiece to move towards a first direction and a second direction which are perpendicular to each other on the bearing area, the second clamping unit is provided with notches which correspond to the bearing area one by one, two clamping parts are arranged in each notch, one clamping part is used for blocking the workpiece on the corresponding bearing area to move towards the first direction in the opposite direction, and the other clamping part is used for blocking the workpiece on the corresponding bearing area to move towards the second direction in the opposite direction;

the driving assembly is connected with the second clamping unit and used for driving the second clamping unit to move;

the driving assembly comprises a first driving unit and a second driving unit, the first driving unit and the second driving unit are both connected with the second clamping unit, the first driving unit is used for driving the second clamping unit to move towards the first direction or the reverse direction of the first direction, and the second driving unit is used for driving the second clamping unit to move towards the second direction or the reverse direction of the second direction;

the first driving unit comprises a first sliding block and a first knob, one end of the first knob is connected with the first sliding block through threads, the axis of the first knob is parallel to the first direction, a first sliding groove is formed in the carrier, the first sliding block is in sliding fit in the first sliding groove, the first knob is rotatably connected with the carrier, and when the first knob rotates, the first knob can drive the first sliding block to slide in the first sliding groove;

the second driving unit comprises a second sliding block and a second knob, one end of the second knob is connected with the second sliding block through threads, the axis of the second knob is parallel to the second direction, a second sliding groove is formed in the first sliding block, the second sliding block is in sliding fit in the second sliding groove, the second knob is rotatably connected with the first sliding block, the second clamping unit is fixed on the second sliding block, and when the second knob rotates, the second knob can drive the second sliding block to slide in the second sliding groove.

2. The clamp of claim 1, wherein the load-bearing area is plural.

3. The clamp according to claim 1 or 2, wherein the carrier is provided with a suction hole, one end of the suction hole penetrates through the bearing area, and the other end of the suction hole is used for being connected with a vacuum generator.

4. The clamp according to claim 3, wherein when the plurality of bearing areas are provided, the plurality of adsorption holes are provided, a plurality of converging holes are provided in the carrier, the top ends of the plurality of adsorption holes correspondingly penetrate through the plurality of bearing areas, and the bottom ends of the plurality of adsorption holes are connected with the vacuum generator through the converging holes.

5. The clamping apparatus of claim 4, wherein the plurality of suction holes all penetrate through the same side surface of the carrier, the first clamping unit comprises a blocking plate and a plurality of blocking blocks, the plurality of blocking blocks are disposed above the carrier for blocking the workpieces on the plurality of carrying areas from moving in the second direction in a one-to-one correspondence, the blocking plate is fixed on the side surface and covers the plurality of suction holes, and the blocking plate is used for blocking the workpieces on the plurality of carrying areas from moving in the first direction.

6. The clamp of claim 1, wherein a first spring is disposed between the first slider and the carrier, the first spring being disposed along a first direction, and having one end abutting against the first slider and the other end abutting against the carrier, the first spring being in a compressed state;

the second slider with be equipped with the second spring between the first slider, the second spring sets up along the second direction, and one end with first slider butt, the other end with the second slider butt, the second spring is compression state.

7. The clamp of claim 6, wherein the first slider and the carrier are provided with first grooves at positions corresponding to the first springs, one end of each first spring abuts against the bottom surface of the corresponding first groove on the first slider, and the other end of each first spring abuts against the bottom surface of the corresponding first groove on the carrier;

and a second groove is formed in the position, corresponding to the second spring, of the second sliding block, one end of the second spring is abutted to the bottom surface of the second groove, and the other end of the second spring is abutted to the first sliding block.

8. The clamp of claim 1, wherein the second clamping unit is plate-shaped, the clamping portion is a spring plate, and the spring plate and the plate-shaped second clamping unit are integrally formed.