Summary of the invention
Embodiment of the present utility model provides a kind of vacuum suction table top, and it can avoid the damage of surface of the work under the situation that guarantees supporting ﹠ stablizing.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of vacuum suction table top comprises:
Be used to be located at the gripper shoe on the vacuum source, have the gripper shoe adsorption hole on the described gripper shoe;
Be located at the loading plate on the described gripper shoe, have the loading plate adsorption hole with the corresponding position of described gripper shoe adsorption hole on the described loading plate, and in the described loading plate, the hardness that is used to carry the part of workpiece at least is lower than the hardness of described gripper shoe.
Because in the vacuum suction table top of embodiment of the present utility model, the loading plate that workpiece and hardness are lower contacts, and loading plate is supported by the higher gripper shoe of hardness, so it can avoid the damage of surface of the work under the situation of assurance supporting ﹠ stablizing.
As a kind of preferred version of embodiment of the present utility model, the cross sectional dimensions of described loading plate adsorption hole less than or greater than the cross sectional dimensions of its pairing described gripper shoe adsorption hole.
As a kind of preferred version of embodiment of the present utility model, described loading plate adsorption hole and gripper shoe adsorption hole are circular hole, and the diameter of described loading plate adsorption hole is littler more than 1 millimeter than the diameter of its pairing described gripper shoe adsorption hole.
A kind of preferred version as embodiment of the present utility model, described loading plate adsorption hole and gripper shoe adsorption hole are circular hole, and the diameter of described loading plate adsorption hole is between 0.5 millimeter to 1 millimeter, and the diameter of described gripper shoe adsorption hole is between 1.5 millimeters to 3 millimeters.
As a kind of preferred version of embodiment of the present utility model, described loading plate is used to carry on the face of described workpiece and has chamfering at the edge of described loading plate adsorption hole.
As a kind of preferred version of embodiment of the present utility model, described loading plate is made of plastics or rubber.
As a kind of preferred version of embodiment of the present utility model, described loading plate is made of in polyvinyl chloride, polypropylene, polyurethanes, the butadiene-styrene rubber any one.
As a kind of preferred version of embodiment of the present utility model, the thickness of described loading plate is between 0.1 millimeter to 0.5 millimeter.
As a kind of preferred version of embodiment of the present utility model, the thickness of described loading plate is 0.2 millimeter.
Embodiment of the present utility model also provides a kind of vacuum suction platform, and it can avoid the damage of surface of the work.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of vacuum suction platform comprises the vacuum source that is used to provide vacuum environment, and is located at the above-mentioned vacuum suction table top on the described vacuum source.
Because the vacuum suction platform of embodiment of the present utility model has above-mentioned vacuum suction table top, so it can avoid the damage of surface of the work under the situation that guarantees supporting ﹠ stablizing.
As a kind of preferred version of embodiment of the present utility model, the vacuum suction platform also comprises the location structure that is used for described gripper shoe and loading plate relative positioning.
The specific embodiment
The utility model provides a kind of vacuum suction table top, comprising:
Be used to be located at the gripper shoe on the vacuum source, have the gripper shoe adsorption hole on the described gripper shoe;
It is characterized in that described vacuum suction table top also comprises:
Be located at the loading plate on the described gripper shoe, have the loading plate adsorption hole with the corresponding position of described gripper shoe adsorption hole on the described loading plate, and in the described loading plate, the hardness that is used to carry the part of workpiece at least is lower than the hardness of described gripper shoe.
Preferably, in each embodiment of the present utility model, the cross sectional dimensions of described loading plate adsorption hole less than or greater than the cross sectional dimensions of its pairing described gripper shoe adsorption hole.
Preferably, in each embodiment of the present utility model, described loading plate adsorption hole and gripper shoe adsorption hole are circular hole, and the diameter of described loading plate adsorption hole is littler more than 1 millimeter than the diameter of its pairing described gripper shoe adsorption hole.
Preferably, in each embodiment of the present utility model, described loading plate adsorption hole and gripper shoe adsorption hole are circular hole, and the diameter of described loading plate adsorption hole is between 0.5 millimeter to 1 millimeter, and the diameter of described gripper shoe adsorption hole is between 1.5 millimeters to 3 millimeters.
Preferably, in each embodiment of the present utility model, described loading plate is used to carry on the face of described workpiece and has chamfering at the edge of described loading plate adsorption hole.
Preferably, in each embodiment of the present utility model, described loading plate is made of plastics or rubber.
Preferably, in each embodiment of the present utility model, described loading plate is made of in polyvinyl chloride, polypropylene, polyurethanes, the butadiene-styrene rubber any one.
Preferably, in each embodiment of the present utility model, the thickness of described loading plate is between 0.1 millimeter to 0.5 millimeter.
Preferably, in each embodiment of the present utility model, the thickness of described loading plate is 0.2 millimeter.
The utility model provides a kind of vacuum suction platform, comprises the vacuum source that is used to provide vacuum environment, it is characterized in that, described vacuum suction platform also comprises:
Be located on the described vacuum source, vacuum suction table top as the aforementioned.
Preferably, in each embodiment of the present utility model, also comprise: be used for location structure described gripper shoe and loading plate relative positioning.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme of the utility model embodiment is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, all other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belong to the scope that the utility model is protected.
The utility model embodiment provides a kind of vacuum suction table top, comprising:
Be used to be located at the gripper shoe on the vacuum source, have the gripper shoe adsorption hole on the described gripper shoe;
Be located at the loading plate on the described gripper shoe, have the loading plate adsorption hole with the corresponding position of described gripper shoe adsorption hole on the described loading plate, and in the described loading plate, the hardness that is used to carry the part of workpiece at least is lower than the hardness of described gripper shoe.
Because in the vacuum suction table top of embodiment of the present utility model, the loading plate that workpiece and hardness are lower contacts, and loading plate is supported by the higher gripper shoe of hardness, so it can avoid the damage of surface of the work under the situation of assurance supporting ﹠ stablizing; And it also can improve the workpiece yield rate thus, reduces steps such as the detection of follow-up required surface, skin patching, and makes the vacuum suction table top can be used to support some to cross soft original and inapplicable workpiece because of the surface, thereby has enlarged its range of application.
Embodiment one
The utility model embodiment provides a kind of vacuum suction table top, and to shown in Figure 4, it comprises gripper shoe 1 and loading plate 2 as Fig. 2.
Gripper shoe 1 is used to be located at vacuum source (this vacuum source can be the forms such as vacuum chamber that the top is provided with supporting network), has a plurality of gripper shoe adsorption holes 11 on the gripper shoe 1.This gripper shoe 1 can have and existing conventional gripper shoe 1 similar structure.From material, gripper shoe 1 preferably is made of the material that alloy, engineering plastics etc. has higher hardness and intensity, for example by stainless steel, aluminium alloy, Teflon formations such as (polytetrafluoroethylene (PTFE)).When being made of alloy material, gripper shoe 1 thickness is preferably at 0.5~1mm, and when being made of engineering plastics, gripper shoe 1 thickness is preferably at 1~2mm.Gripper shoe adsorption hole 11 is preferably the circular hole of aperture at 1.5~3mm.The distribution of gripper shoe adsorption hole 11 on gripper shoe 1 also can be taked different existing modes, for example, can evenly distribute as shown in Figure 2; Or also can be big in the position distribution density at corresponding workpiece (for example wiring board in exposure technology) 8 edges (as hole centre-to-centre spacing 4~8mm), and it is less (as hole centre-to-centre spacing 10~15mm), to reach better adsorption effect in the position distribution density at corresponding workpiece 8 middle parts.
2 of loading plates are positioned on the gripper shoe 1, thereby it can directly contact with workpiece 8 when absorption.Has loading plate adsorption hole 21 with gripper shoe adsorption hole 11 corresponding positions on the loading plate 2, that is to say when loading plate 2 correctly is positioned on the gripper shoe 1, there is loading plate adsorption hole 21 gripper shoe adsorption hole 11 tops, loading plate adsorption hole 21 belows also have 11, two kinds of holes of gripper shoe adsorption hole 11,21 to form the structure that connects.This loading plate 2 is used for the hardness of the part of supporting workpiece 8 should be less than the hardness of gripper shoe 1 (certainly, also but the hardness of loading plate 2 integral body all is lower than the hardness of gripper shoe 1), inhale the trace equivalent damage to guarantee that loading plate 2 (especially the loading plate adsorption hole 21) can not cause workpiece 8 surfaces that are in contact with it.Preferably, this loading plate 2 can be made of plastics or elastomeric material, for example by any one formation in polyvinyl chloride (PVC), polyurethanes (PU), polypropylene, the butadiene-styrene rubber; The material that certain loading plate 2 also can be lower than gripper shoe 1 hardness by other hardness constitutes.
When adsorbing, the higher gripper shoe 1 of hardness can be resisted the pressure reduction of its both sides and not flexural deformation substantially, thereby guarantees that supporting surface is smooth, for workpiece 8 provides stable and supports uniformly; And the lower loading plate 2 of hardness can closely contact with gripper shoe 1, thereby assurance is softer with workpiece 8 contacted surfaces, inhales traces etc. to prevent that workpiece 8 surfaces from producing.
Preferably, the cross sectional dimensions of loading plate adsorption hole 21 is less than the cross sectional dimensions of its pairing gripper shoe adsorption hole 11; That is to say that loading plate adsorption hole 21 is preferably littler than gripper shoe adsorption hole 11, and look up that loading plate adsorption hole 21 is preferably placed in the gripper shoe adsorption hole 11 from side perpendicular to loading plate 2 and gripper shoe 1.Like this, as shown in Figure 3, when adsorbing, because the effect of suction, loading plate 2 can produce slight depression at the periphery of loading plate adsorption hole 21, thereby make loading plate adsorption hole 21 peripheries form contacting of seamlessly transitting, producing damage with loading plate adsorption hole 21 corresponding positions to avoid workpiece 8 better with workpiece 8.More preferably, when loading plate adsorption hole 21 and gripper shoe adsorption hole 11 were circular hole, the diameter of loading plate adsorption hole 21 should be than the diameter of gripper shoe adsorption hole 11 more than the little 1mm (just more than the little 0.5mm of each side in hole); Again preferably, when the diameter of gripper shoe adsorption hole 11 was between 1.5~3mm, the diameter of loading plate adsorption hole 21 can be between 0.5~1mm.
Preferably, as shown in Figure 4, loading plate 2 is used to carry that the edge at loading plate adsorption hole 21 has chamfering 211 on the face of workpiece 8, and this chamfering 211 can play the effect that prevents loading plate adsorption hole 21 damage workpiece 8 equally.
Preferably, the thickness of loading plate 2 between 0.1~0.5mm, 0.2mm more preferably.The thickness of this scope can guarantee that loading plate 2 itself has enough intensity, can provide enough protections for workpiece 8, and loading plate adsorption hole 21 peripheries can produce the depression of enough degree in the time of also can guaranteeing to adsorb simultaneously.
Preferably, on gripper shoe 1 and loading plate 2, all can have shop bolt hole 12,22 etc. and be used for location structure gripper shoe 1 and loading plate 2 relative positionings.
Embodiment two
The utility model embodiment provides a kind of vacuum suction platform, and as shown in Figure 5, it comprises the vacuum source that is used to provide vacuum environment, and is located at the above-mentioned vacuum suction table top on the described vacuum source.
Wherein, vacuum source can comprise vacuum chamber 9, and vacuum chamber 9 has the vavuum pump interface 93 that links to each other with vavuum pump, and vacuum chamber 9 top openings and be provided with supporting network 91, the gripper shoe 1 of vacuum suction table top can be arranged on this supporting network 91.Certainly, this vacuum source also can be the known vacuum source of other form, and for example, supporting network 91 can supported waits replacement; Or vacuum source can be directly link to each other with vavuum pump, have a vacuum cups of big opening etc.
Preferably, the vacuum suction platform also can comprise the location structure that is used for gripper shoe 1 and loading plate 2 relative positionings.Location structure is used for gripper shoe 1 and loading plate 2 relative positionings, thereby gripper shoe adsorption hole 11 and loading plate adsorption hole 21 can be in correspondence position accurately when guaranteeing absorption.This location structure can comprise at least two shop bolts 92 that are located on the vacuum chamber 9, shop bolt 92 can pass the pin locating hole 12,22 on gripper shoe 1 and the loading plate 2, thereby with gripper shoe 1 and loading plate 2 relative positionings (this moment reality be with vacuum chamber 9, gripper shoe 1, loading plate 2 relative positionings).Certainly, location structure also can be other many known forms, and for example, location structure also can comprise a circle chimb that is located at the vacuum chamber periphery, thereby gripper shoe 1 and loading plate 2 are limited in this chimb together; For another example, location structure also can comprise projection that is positioned at gripper shoe 1 edge and the recess that is positioned at loading plate 2 edges, can be with gripper shoe 1 and loading plate 2 relative positionings when projection snaps in recess.
Because the vacuum suction platform of embodiment of the present utility model has above-mentioned vacuum suction table top, therefore it can avoid the damage of surface of the work under the situation that guarantees supporting ﹠ stablizing, and raising workpiece yield rate, reduce steps such as the detection of follow-up required surface, skin patching, have bigger range of application.
Obviously, the vacuum suction table top of the utility model embodiment and vacuum suction platform also can carry out many variations.For example, the concrete shape of loading plate, gripper shoe, size, material etc. can be different; The concrete shape of loading plate adsorption hole, gripper shoe adsorption hole, size, distributing position can be different; The concrete form of location structure can be different; The concrete form of vacuum source can be not equal.
Obviously, the vacuum suction table top of the utility model embodiment and vacuum suction platform are not limited to be used in the solder mask exposure-processed of wiring board; They also can be used in many other fields, for example support many other workpiece such as liquid crystal display substrate, semiconductor substrate, silicon chip, optical element in technologies such as thin film deposition, etching, development, friction.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.