CN212683256U

CN212683256U - Vacuum clamp

Info

Publication number: CN212683256U
Application number: CN202021498120.6U
Authority: CN
Inventors: 曾伟强; 赵挺; 彭嘉伟; 王正宁
Original assignee: Guangdong Kejie Machinery Automation Co ltd
Current assignee: Guangdong Kejie Technology Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-12
Anticipated expiration: 2030-07-24

Abstract

The utility model provides a vacuum clamp, include: base, fixed station, a plurality of elevating platform and cylinder. The fixed table is arranged on the base and fixedly connected with the base, and the fixed table comprises a first sucker communicated with the vacuum generator; the lifting table is arranged around the fixed table, and a second sucking disc communicated with the vacuum generator is arranged on the upper surface of the lifting table; the cylinder sets up on the base, the cylinder drive elevating platform reciprocates. Compared with the prior art, the utility model discloses a vacuum clamp is after accomplishing rough machining process under the appeal effect of second sucking disc, the frame material that cuts out follows the elevating platform removes downwards, has realized the separation of frame material and panel. The time of manually taking away the frame material during processing is saved, and the position of the plate is not changed after the frame material is separated from the plate.

Description

Vacuum clamp

Technical Field

The utility model relates to an industrial fixture equipment technical field, concretely relates to vacuum clamp.

Background

According to the technological requirements of the precision machining of the composite board, the rough machining and the finish machining of the workpiece are completed on the same fixture, and the process comprises the steps of firstly performing rough machining and then performing finish machining. The prior clamp is required to stop the procedure after the rough machining process, manually remove the frame material and then finish the plate, so that the auxiliary time is greatly increased and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the shortcoming among the prior art and not enough, provide a vacuum clamp.

An embodiment of the utility model provides a vacuum clamp, include:

a base;

the fixed table is arranged on the base and fixedly connected with the base, and the fixed table comprises a first sucker communicated with the vacuum generator;

the lifting tables are distributed around the fixed table, and the upper surfaces of the lifting tables are provided with second suckers communicated with the vacuum generator;

the cylinder sets up on the base, the cylinder drive elevating platform reciprocates.

Compared with the prior art, the utility model discloses a vacuum clamp is after accomplishing rough machining process under the appeal effect of second sucking disc, the frame material that cuts out is followed the elevating platform moves downwards, and needs the finish machining panel then to be fixed under the appeal effect of first sucking disc on the fixed station to realize the separation of frame material and panel. The time of manually taking away the frame material during processing is saved, and the position of the plate is not changed after the frame material is separated from the plate.

The lifting platform is arranged on the base plate, and a plurality of first openings are formed in the base plate; the base comprises a bottom plate and a plurality of supporting blocks arranged on the bottom plate, the air cylinder is arranged on the bottom plate, and the supporting blocks penetrate through the first opening and are connected with the fixed table. The lifting platforms are simultaneously lifted or lowered and are kept on the same relative horizontal plane in the lifting or lowering process.

The positioning device further comprises a first positioning pin and a positioning block, wherein the first positioning pin is fixedly connected with the substrate; the positioning block is arranged on the fixing table, a pin hole is formed in the center of the positioning block, and the first positioning pin corresponds to the pin hole. And the space position of the lifting of the base plate is limited by the matching of the positioning pin and the pin hole.

Further, the fixed platform comprises a positioning part and a first sucker from bottom to top; the positioning part is provided with a first vacuum connecting port communicated with a vacuum generator, a first vacuum suction port and 2 depressed parts, the first vacuum connecting port is arranged on the side surface of the positioning part, the first vacuum suction port and the 2 depressed parts are arranged on the upper surface of the positioning part, the first vacuum suction port is communicated with the first vacuum connecting port, the 2 depressed parts are respectively arranged on two sides of the first vacuum suction port, a positioning channel is arranged inside the depressed parts, the positioning block is detachably arranged in the depressed parts, the positioning channel is positioned below the pin holes, and the positioning pins penetrate through the positioning channels and are inserted into the pin holes; the first sucker is detachably connected with the positioning portion, a vacuum channel and a first vacuum groove are arranged on the first sucker, the vacuum channel is a cylindrical hollow channel, one end of the vacuum channel is arranged on the lower surface of the first sucker and communicated with the first vacuum suction port, the first vacuum groove is a groove communicated with the other end of the vacuum channel, and the first vacuum groove is formed in the upper surface of the first sucker. Through setting up location portion and first suction disc, reduce the degree of difficulty when the accessory is processed and is installed to reduce the cost of maintenance or replacement accessory.

Furthermore, a throttling small hole is formed above the pin hole, the pin hole is communicated with the upper surface of the positioning block through the throttling small hole, a first groove and a second groove are respectively formed in the side surface and the bottom surface of the positioning block, the first groove is communicated with the upper surface of the positioning block, and the second groove is communicated with the first groove. The locating pin is getting into the in-process of pinhole can be with the air push inside the pinhole, the effect of gas buffering is played in the throttle aperture when the air passes through, first recess and second recess have increased the space of storage air, avoid the space too little and cause atmospheric pressure too high, ensure the tip of locating pin with the smooth butt in inside of pinhole.

Further, still include a plurality of second locating pin, the second locating pin centers on the fixed station sets up, the second locating pin with the upper surface fixed connection of base plate. And the frame material is positioned, so that the positioning accuracy is improved.

Further, the second suction cup includes a second vacuum groove and a second vacuum suction port provided in the second vacuum groove. And sucking air between the second vacuum groove and the frame material by using a vacuum generator through the second sucking disc, so that the frame material is tightly attached to the lifting table under the action of air pressure.

Furthermore, a second vacuum connecting port communicated with the vacuum generator is further arranged on the outer side of the lifting platform, and the second sucker is communicated with the second vacuum connecting port and is communicated with the vacuum generator through the second vacuum connecting port. Ensuring that the second suction cup is in communication with a vacuum generator.

Further, still include the governing valve, the governing valve with the air current passageway of cylinder is connected, the governing valve exposes in the outside of bottom plate. The air flow inlet and outlet speed of the air cylinder can be adjusted conveniently by a user, so that the lifting speed of the substrate can be controlled.

Further, still include the guard plate, the guard plate sets up on the bottom plate, the guard plate surrounds supporting shoe and cylinder setting. Preventing dust or water vapor in the processing process from entering the interior of the processing device.

In order that the invention may be more clearly understood, particular embodiments of the invention will now be described with reference to the accompanying drawings.

Drawings

Fig. 1 is a cross-sectional view of a vacuum chuck according to an embodiment of the present invention.

Fig. 2 is a front view of a vacuum chuck according to an embodiment of the present invention.

Fig. 3 is a schematic view of a vacuum chuck according to an embodiment of the present invention.

Fig. 4 is a schematic view illustrating the connection between the first positioning pin and the positioning block of the vacuum chuck according to an embodiment of the present invention.

Fig. 5 is a plan view of a fixing portion of a fixing table of a vacuum chuck according to an embodiment of the present invention.

Fig. 6 is a structural view of a positioning block of a vacuum chuck according to an embodiment of the present invention.

Fig. 7 is a side view of a vacuum chuck in accordance with an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-7, wherein, fig. 1 is a cross-sectional view of a vacuum clamp according to an embodiment of the present invention, fig. 2 is a front view of a vacuum clamp according to an embodiment of the present invention, fig. 3 is a schematic view of a vacuum clamp according to an embodiment of the present invention, fig. 4 is a schematic view of a first positioning pin and a positioning block of a vacuum clamp according to an embodiment of the present invention, fig. 5 is a top view of a fixing portion of a fixing table of a vacuum clamp according to an embodiment of the present invention, fig. 6 is a structural view of a positioning block of a vacuum clamp according to an embodiment of the present invention, and fig. 7 is a side view of a vacuum clamp according to an embodiment of the present invention.

Referring to fig. 1, a vacuum chuck according to an embodiment of the present invention includes:

a base 1;

the fixed table 2 is arranged on the base 1, the fixed table 2 is fixedly connected with the base 1, and the fixed table 2 comprises a first suction disc 22 communicated with a vacuum generator; preferably, the fixed table 2 is a rectangular fixed table 2, and the fixed table 2 is connected with the base 1 through bolts; preferably, the corners of the fixed table 2 are even and even round corners; preferably, a sealing ring is arranged on the first suction disc 22.

The lifting platforms 3 are distributed around the fixed platform 2, and the upper surfaces of the lifting platforms 3 are provided with second suction cups 32 communicated with a vacuum generator; preferably, at least one side of the fixed table 2 is provided with 2 or more than 2 lifting tables 3; preferably, a sealing ring is arranged on the second suction cup 32.

And the cylinder 4 is arranged on the base 1, and the cylinder 4 drives the lifting platform 3 to move up and down. Preferably, the air cylinder 4 drives all the lifting platforms 3 to move up and down simultaneously, and the lifting platforms 3 are always relatively located at the same horizontal height in the process of moving up and down. Preferably, the push rod of cylinder 4 includes central branch, 2 auxiliary strut and plane push pedal on the equidirectional, central branch sets up on the central point of cylinder 4 puts, 2 auxiliary strut with central branch is central symmetry each other, central branch and 2 auxiliary strut set up on the equidirectional, the plane push pedal respectively with central branch and 2 auxiliary strut fixed connection.

The first suction cup 22 and the second suction cup 32 may be connected to the same vacuum generator, or may be connected to two different vacuum generators. Preferably, the first suction cup 22 and the second suction cup 32 are respectively communicated with two different vacuum generators.

In other embodiments, the skilled person can also connect the first suction cup 22 and the second suction cup 32 to 2 sets of interfaces of the same vacuum generator controlled by different control switches according to the control requirement.

Referring to fig. 2-3, in the present embodiment, preferably, the number of the lifting platforms 3 is 6, and 2 and 1 lifting platforms 3 are respectively disposed on any two adjacent sides of the fixing platform 2. The upper surface of the lifting table 3 and the upper surface of the fixed table 2 are located on the same horizontal plane, raw plate materials are placed on the fixed table 2 and the lifting table 3, the plate materials and air between the upper surface of the lifting table 3 and the upper surface of the fixed table 2 are sucked away by a vacuum generator through the first suction cup 22 and the second suction cup 32, external air cannot enter due to sealing rings, a vacuum state is formed, and the plate materials are clamped on the lifting table 3 and the fixed table 2 respectively under the action of air pressure. After rough machining is completed, the air cylinder 4 drives all the lifting tables 3 to descend simultaneously. Under the action of air pressure, the lifting platform 3 clamps the plate raw material and descends to a certain height. The plate material to be finished is clamped on the fixed table 2. Compared with the prior art, the utility model discloses a vacuum clamp can be directly with frame material and panel separation, has saved the artifical time of getting away the frame material of man-hour to guaranteed that frame material and panel separate the back, the panel position can not change.

In one embodiment, the vacuum chuck of the present invention further includes a base plate 5, the base plate 5 is disposed above the cylinder 4, the base plate 5 is in contact with or detachably connected to the push rod of the cylinder 4, the plurality of lifting platforms 3 are disposed on the base plate 5, and the base plate 5 is provided with a plurality of first openings; the base 1 comprises a bottom plate 11 and a plurality of supporting blocks 12 arranged on the bottom plate 11, the air cylinder 4 is arranged on the bottom plate 11, and the supporting blocks 12 penetrate through the first opening to be connected with the fixed table 2.

Preferably, the base plate 5 is bolted to a push rod of the cylinder 4. The stability of the push rod of the air cylinder 4 when pushing the base plate 5 to move up and down is improved.

Preferably, the support block 12 is bolted to the fixed table 2. It is ensured that the stationary table 2 is not displaced by interference.

In the present embodiment, the base plate 5 ensures that all the lifting tables 3 are lifted or lowered at the same time and are kept on the same relative horizontal plane during the lifting or lowering process.

Referring to fig. 1 and 4, in one embodiment, the positioning device further includes a first positioning pin 60 and a positioning block 62, wherein the first positioning pin 60 is fixedly connected to the substrate 5; the positioning block 62 is disposed on the fixing table 2, a pin hole 622 is disposed in the center of the positioning block 62, and the first positioning pin 60 corresponds to the pin hole 622. Preferably, at least 2 first alignment pins 60 and alignment blocks 62 are provided. Preferably, the positioning block 62 is detachably disposed on the fixed table 2; preferably, the positioning block 62 is bolted to the fixed table 2.

In this embodiment, when the base plate 5 is raised, the first positioning pin 60 is inserted into the pin hole 622 of the positioning block by the engagement of the positioning pin and the pin hole 622, and the spatial position of the first positioning pin 60 is defined by the pin hole 622, and since the first positioning pin 60 is fixedly connected to the base plate 5, the spatial position where the base plate 5 is raised is also defined, thereby ensuring that the upper surface of the lifting table 3 and the upper surface of the fixed table 2 are located on the same horizontal plane after the base plate is raised.

Referring to fig. 1 and 5, in one embodiment, the fixing table 2 includes a positioning portion 24 and a first suction cup 22 from bottom to top; the positioning part 24 is provided with a first vacuum connection port 241 communicating with a vacuum generator, a first

vacuum suction port

242, and 2 depressions 244, the first vacuum connection port 241 being provided at a side of the positioning part 24, preferably, the first vacuum connection port 241 being located at a side of 2 elevating stages 3, preferably, the first vacuum connection port 241 being provided between the 2 elevating stages 3. The first

vacuum suction port

242 and 2 concave portions 244 are provided on the upper surface of the positioning portion 24, the first vacuum suction port 242 is communicated with the first

vacuum connection port

241, 2 concave portions 244 are respectively provided on both sides of the first vacuum suction port 242, a positioning passage is provided inside the concave portion 244, the positioning block 62 is detachably provided in the concave portion 244, the positioning passage is located below the pin hole 622, and the positioning pin is inserted into the pin hole 622 through the positioning passage; the first suction cup 22 is detachably connected to the positioning portion 24, the first suction cup 22 is provided with a vacuum passage 222 and a first vacuum groove 224, the vacuum passage 222 is a cylindrical hollow passage, one end of the vacuum passage 222 is disposed on the lower surface of the first suction cup 22 and is communicated with the first vacuum suction port 242, the first vacuum groove 224 is a groove communicated with the other end of the vacuum passage 222, and the first vacuum groove 224 is disposed on the upper surface of the first suction cup 22.

Preferably, the positioning block 62 is disposed in the recess 244 by a bolt connection.

Preferably, a sealing ring is arranged at the joint of the positioning pin and the base plate 5.

Preferably, the first vacuum connection port 241 is provided at an inner side thereof with a first screw thread, and the first vacuum connection port 241 is connected with a pipe port of a vacuum generator through the first screw thread.

In the present embodiment, by providing the positioning portion 24 and the first suction cup 22, the difficulty of processing and mounting of the component is reduced, and the cost of repairing or replacing the component is reduced. When the positioning pin is not inserted into the pin hole 622, the positioning channel limits the vertical movement path of the positioning pin, and the positioning pin can be accurately inserted into the pin hole 622 when moving upwards.

Referring to fig. 4 and 6, in one embodiment, a throttle aperture 624 is disposed above the pin hole 622, the pin hole 622 communicates with the upper surface of the positioning block 62 through the throttle aperture 624, the side surface and the bottom surface of the positioning block 62 are respectively provided with a first groove 624 and a second groove 626, the first groove 624 communicates with the upper surface of the positioning block 62, and the second groove 626 communicates with the first groove 624.

In this embodiment, the locating pin pushes air into the pin hole 622 during the process of entering the pin hole 622, and the small throttling hole 624 plays a role of air buffer when the air passes through. Since the air pressed during the rising process of the positioning pin flows to the upper surface of the positioning block 62 through the throttle pin hole 622, the first groove 624 and the second groove 626 increase the space for storing air, thereby avoiding the problem that the air pressure is too high due to too small space, and ensuring the smooth abutting of the end of the positioning pin and the inside of the pin hole 622.

Referring to fig. 3, in an embodiment, the vacuum chuck of the present invention further includes a plurality of second positioning pins 7, the second positioning pins 7 are disposed around the fixing table 2, and the second positioning pins 7 are fixedly connected to the upper surface of the substrate 5. Preferably, the second positioning pins 7 are distributed at the corners of the substrate 5, and the second positioning pins 7 are used for positioning the frame material, so that the positioning accuracy is improved.

In one embodiment, the second suction cup 32 includes a second vacuum groove and a second vacuum suction port disposed within the second vacuum groove. Preferably, the second vacuum groove is disposed on a convex portion on the upper surface of the lifting platform 3, and a vacuum generator is used to suck air between the second vacuum groove and the frame material through the second suction cup 32, so that the frame material is tightly attached to the lifting platform 3 under the action of air pressure.

Preferably, a second vacuum connection port 322 communicating with the vacuum generator is further provided at an outer side of the lifting table 3, and the second suction cup 32 communicates with the second vacuum connection port 322 and communicates with the vacuum generator through the second vacuum connection port 322. Ensuring that the second suction cup 32 is in communication with the vacuum generator.

Preferably, the second vacuum connection port 322 is provided at an inner side thereof with a second screw thread, and the second vacuum connection port 322 is connected with a pipe port of a vacuum generator through the second screw thread.

Referring to fig. 2, 3 and 7, in one embodiment, the vacuum chuck of the present invention further includes a regulating valve 8, the regulating valve 8 is connected to the air flow channel of the air cylinder 4, and the regulating valve 8 is exposed outside the bottom plate 11. The user can adjust the adjusting valve 8 exposed outside the bottom plate 11 according to the use requirement, so as to control the air flow in and out speed of the air cylinder 4, thereby achieving the effect of controlling the lifting speed of the substrate 5.

Preferably, the regulating valve 8 comprises an inlet regulating valve 8 and an outlet regulating valve, the inlet regulating valve is connected with the inlet channel of the cylinder 4, and the outlet regulating valve is connected with the outlet channel of the cylinder 4. The ascending speed and the descending speed of the substrate 5 can be separately adjusted.

In one embodiment, the vacuum clamp of the present invention further comprises a protection plate 9, wherein the protection plate 9 is disposed on the bottom plate 11, and the protection plate 9 is disposed around the supporting block 12 and the cylinder 4. Preventing dust or water vapor in the processing process from entering the interior of the processing device.

Preferably, the protection plate 9 is bolted to the fixing block. If the protection plate 9 is damaged, the user can detach the damaged protection plate 9 and replace the protection plate 9 with a proper protection plate 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A vacuum chuck, comprising:

a base;

2. A vacuum chuck according to claim 1, wherein: the lifting platform comprises a cylinder, a plurality of lifting platforms and a plurality of first openings, wherein the cylinder is arranged on the base plate; the base comprises a bottom plate and a plurality of supporting blocks arranged on the bottom plate, the air cylinder is arranged on the bottom plate, and the supporting blocks penetrate through the first opening and are connected with the fixed table.

3. The vacuum chuck as claimed in claim 2, further comprising a first positioning pin and a positioning block, wherein the first positioning pin is fixedly connected to the base plate; the positioning block is arranged on the fixing table, a pin hole is formed in the center of the positioning block, and the first positioning pin corresponds to the pin hole.

4. A vacuum chuck according to claim 3, wherein: the fixed platform comprises a positioning part and a first sucker from bottom to top; the positioning part is provided with a first vacuum connecting port communicated with a vacuum generator, a first vacuum suction port and 2 depressed parts, the first vacuum connecting port is arranged on the side surface of the positioning part, the first vacuum suction port and the 2 depressed parts are arranged on the upper surface of the positioning part, the first vacuum suction port is communicated with the first vacuum connecting port, the 2 depressed parts are respectively arranged on two sides of the first vacuum suction port, a positioning channel is arranged inside the depressed parts, the positioning block is detachably arranged in the depressed parts, the positioning channel is positioned below the pin holes, and the positioning pins penetrate through the positioning channels and are inserted into the pin holes; the first sucker is detachably connected with the positioning portion, a vacuum channel and a first vacuum groove are arranged on the first sucker, the vacuum channel is a cylindrical hollow channel, one end of the vacuum channel is arranged on the lower surface of the first sucker and communicated with the first vacuum suction port, the first vacuum groove is a groove communicated with the other end of the vacuum channel, and the first vacuum groove is formed in the upper surface of the first sucker.

5. A vacuum chuck according to claim 4, wherein: the upper portion of pinhole is equipped with a throttle aperture, the pinhole passes through the throttle aperture intercommunication the upper surface of locating piece, the side and the bottom surface of locating piece are equipped with first recess and second recess respectively, first recess with the upper surface intercommunication of locating piece, the second recess with first recess intercommunication.

6. The vacuum chuck as claimed in claim 2, further comprising a plurality of second alignment pins disposed around the fixing table, the second alignment pins being fixedly connected to the upper surface of the substrate.

7. A vacuum chuck according to claim 1, wherein: the second suction cup comprises a second vacuum groove and a second vacuum suction port arranged in the second vacuum groove.

8. A vacuum chuck according to claim 1, wherein: and a second vacuum connector communicated with the vacuum generator is further arranged on the outer side of the lifting platform, and the second sucker is communicated with the second vacuum connector and is communicated with the vacuum generator through the second vacuum connector.

9. A vacuum chuck according to claim 2, wherein: the air cylinder is characterized by further comprising a regulating valve, the regulating valve is connected with the air flow channel of the air cylinder, and the regulating valve is exposed out of the bottom plate.

10. A vacuum chuck according to claim 2, wherein: the protection plate is arranged on the bottom plate and surrounds the supporting block and the air cylinder.