CN219212397U

CN219212397U - Vacuum clamp

Info

Publication number: CN219212397U
Application number: CN202223558241.7U
Authority: CN
Inventors: 刘亚邦; 钱叙本; 莫志伟
Original assignee: Foshan Libang Communication Equipment Technology Co ltd
Current assignee: Foshan Libang Communication Equipment Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-20
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a vacuum clamp which comprises a fixed seat and a plurality of swinging blocks, wherein the top surface of the fixed seat is provided with a mounting groove for placing a workpiece, the mounting groove is internally provided with a plurality of vacuum adsorption holes, and the vacuum adsorption holes are used for fixing the workpiece in the mounting groove; this vacuum clamp is through setting up the mounting groove in order to install the work piece, then through opening a plurality of vacuum absorption holes in the mounting groove to set up a plurality of swing pieces, can realize adsorbing the work piece through evacuating device, cooperate a plurality of swing pieces to realize installing the work piece fast, whole installation easy and simple to handle swiftly, overall structure is simple and practical reliable.

Description

Vacuum clamp

Technical Field

The utility model relates to the technical field of machinery, in particular to a vacuum clamp.

Background

In the processing and production of some metal parts, specific processing needs to be performed on a workpiece, such as punching, stamping, polishing, and the like, and because part of the metal part has a special structure, a specific fixture is needed to mount the metal part for further processing; however, the structure of the metal parts is complex, and most of the existing clamps need to consume a lot of time when the metal parts are installed, so that the whole efficiency is low, and the production is not facilitated. The publication number is CN104858806B, a vacuum clamp is disclosed, including a clamp body, a plurality of sections of recesses have been seted up on the clamp body, every section recess is independent recess district, set up the first vacuum hole that runs through the clamp body in every section recess, be provided with the sealing member in each section recess respectively, the second vacuum hole has been seted up to every sealing member, the second vacuum hole is linked together with the first vacuum hole in this section recess, each first vacuum hole is connected with a set of pipeline structure respectively, every group pipeline structure includes exhaust pipeline and air inlet pipeline. According to the utility model, the grooves with the independent sections are arranged, so that even if vacuum leakage occurs in one section of groove, the vacuum clamp is not influenced to clamp the silicon wafer, and in addition, the adjustable gas pressure difference between the upper plane and the lower plane of the silicon wafer is realized through the arrangement of the air inlet pipeline, so that the vacuum clamp can firmly and safely clamp the ultrathin silicon wafer. Although the functions are various, the whole structure is relatively complex, the operation is troublesome, and the production cost is high.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a simple, practical and reliable vacuum clamp.

In order to achieve the above purpose, the present utility model provides the following solutions: the vacuum clamp comprises a fixed seat and a plurality of swinging blocks, wherein the top surface of the fixed seat is provided with a mounting groove, the mounting groove is used for placing a workpiece, a plurality of vacuum adsorption holes are formed in the mounting groove and used for fixing the workpiece in the mounting groove, a suction channel is formed in the fixed seat, the side wall of the fixed seat is respectively provided with a suction hole and a plurality of pressure relief holes, and the suction channel is respectively connected with the vacuum adsorption holes, the suction holes and the pressure relief holes; the top surface of the fixed seat is rotationally connected with a plurality of swinging blocks, and the swinging blocks are swung to enable the swinging blocks to move to the position right above the mounting groove so as to limit the workpiece to exit the mounting groove;

the pressure relief hole is provided with an opening and closing device, and the opening and closing device is driven to open or close the pressure relief hole by swinging the swinging block.

The beneficial effects of the utility model are as follows: realizing quick installation of the workpiece, arranging a mounting groove in the vacuum clamp for mounting the workpiece, arranging a plurality of vacuum adsorption holes in the mounting groove, arranging a plurality of swinging blocks, and realizing the adsorption of the workpiece by the vacuumizing device and the quick installation of the workpiece by matching with the swinging blocks, wherein the whole installation process is simple, convenient and quick to operate, and the whole structure is simple, practical and reliable; meanwhile, when the workpiece is disassembled, the swinging block is only required to swing to enable the swinging block to withdraw from the mounting groove so as to open the pressure relief hole, so that the quick pressure relief can be realized, the vacuum adsorption hole is enabled to loosen the workpiece, and the workpiece can be quickly taken out.

Further, a plurality of limiting bosses are formed in the mounting groove, and the limiting bosses are used for limiting the movement of the workpiece in the mounting groove. After the structure is adopted, the movement of the workpiece in the mounting groove is further limited.

Further, a plurality of rotating shafts are rotatably connected to the top surface of the fixing base, the rotating shafts are located at the periphery of the mounting groove respectively, and each rotating shaft is sleeved with the swinging block.

Further, headstock gear includes sealing head, two reset springs, two connecting rods, sealing head is used for shutoff pressure release hole, sliding connection many connecting rods on the fixing base lateral wall, sealing head is connected jointly to every two connecting rod tip, the cover is reset spring on the connecting rod, reset spring is used for promoting sealing head and closes the pressure release hole. After the structure is adopted, the pressure relief hole is closed in a conventional state.

Further, a plurality of fixed slots are formed in the outer side wall of the fixing seat, a connecting rod is arranged in each fixed slot, a first limit flange is formed in each fixed slot, a second limit flange is arranged on the outer side wall of each connecting rod, a reset spring is arranged between each first limit flange and each second limit flange, and the reset spring is used for pushing the connecting rod to retract into the fixed slot.

Further, the bottom end of the rotating shaft is provided with a cam, the end part of the connecting rod is propped against the cam, and the connecting rod is driven to extend out of the fixing groove by rotating the rotating shaft. After the structure is adopted, the pressure relief hole is opened or closed by driving the sealing head through swinging the swinging block.

Further, the air duct comprises an air duct and a vacuum suction pump, one end of the air duct is connected with the vacuum suction pump, the other end of the air duct is connected with the suction hole, and an electromagnetic valve is arranged on the air duct and used for controlling ventilation of the air duct.

Drawings

Fig. 1 is a perspective view of the overall structure of the present utility model (vacuum suction pump is not connected).

Fig. 2 is a top view of the present utility model.

Fig. 3 is a diagram showing the internal structure of the fixing base of the present utility model.

Fig. 4 is a partial enlarged view of fig. 3 at a.

Wherein 1 is the fixing base, 11 is the mounting groove, 111 is the vacuum adsorption hole, 112 is the limit boss, 12 is the suction hole, 13 is the pressure release hole, 14 is the suction channel, 15 is the fixed slot, 151 is first limit flange, 2 is the swinging block, 21 is the axis of rotation, 22 is the cam, 31 is the seal head, 32 is reset spring, 33 is the connecting rod, 331 is the second limit flange, 41 is the air duct, 42 is the vacuum suction pump, 43 is the solenoid valve.

Detailed Description

The following description of the embodiments of the present utility model will be made more complete and less obvious to those skilled in the art, based on the embodiments of the present utility model, for a part, but not all of the embodiments of the present utility model, without making any inventive effort.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 4, a vacuum clamp comprises a fixing seat 1 and a plurality of swinging blocks 2, wherein a mounting groove 11 is formed in the top surface of the fixing seat 1, the mounting groove 11 is used for placing a workpiece, a plurality of vacuum adsorption holes 111 are formed in the mounting groove 11, the vacuum adsorption holes 111 are used for fixing the workpiece in the mounting groove 11, a suction channel 14 is formed in the fixing seat 1, a suction hole 12 and a plurality of pressure relief holes 13 are respectively formed in the side wall of the fixing seat 1, and the suction channel 14 is respectively connected with the plurality of vacuum adsorption holes 111, the suction hole 12 and the plurality of pressure relief holes 13; the top surface of the fixed seat 1 is rotationally connected with a plurality of swinging blocks 2, and the swinging blocks 2 are moved to the position right above the mounting groove 11 by the swinging of the swinging blocks 2 so as to limit the workpiece to exit from the mounting groove 11; wherein, a plurality of limiting bosses 112 are formed in the mounting groove 11, and the limiting bosses 112 are used for limiting the movement of the workpiece in the mounting groove 11.

In this embodiment, a plurality of rotation shafts 21 are rotatably connected to the top surface of the fixing base 1, the plurality of rotation shafts 21 are respectively located at the periphery of the mounting groove 11, and each rotation shaft 21 is sleeved with a swinging block 2.

The pressure relief hole 13 is provided with an opening and closing device, and the opening and closing device is driven to open or close the pressure relief hole 13 by swinging the swinging block 2.

In this embodiment, the opening and closing device includes a sealing head 31, two return springs 32, two connecting rods 33, the sealing head 31 is used for plugging the pressure relief hole 13, a plurality of connecting rods 33 are slidably connected on the outer side wall of the fixing seat 1, the end parts of every two connecting rods 33 are jointly connected with the sealing head 31, the return springs 32 are sleeved on the connecting rods 33, and the return springs 32 are used for pushing the sealing head 31 to close the pressure relief hole 13.

In this embodiment, the outer side wall of the fixing base 1 is provided with a plurality of fixing slots 15, each fixing slot 15 is provided with a connecting rod 33, a first limiting flange 151 is formed in each fixing slot 15, a second limiting flange 331 is disposed on the outer side wall of each connecting rod 33, a return spring 32 is disposed between the first limiting flange 151 and the second limiting flange 331, and the return spring 32 is used for pushing the connecting rod 33 to retract into the fixing slot 15.

In the embodiment, the bottom end of the rotating shaft 21 is provided with a cam 22, the end part of the connecting rod 33 presses against the cam 22, and the connecting rod 33 is driven to extend out of the fixed groove 15 by rotating the rotating shaft 21; wherein a part of the rotation shaft 21 is provided at the bottom end with a cam 22.

The embodiment further comprises an air duct 41 and a vacuum suction pump 42, one end of the air duct 41 is connected with the vacuum suction pump 42, and the other end is connected with the suction hole 12, wherein an electromagnetic valve 43 is arranged on the air duct 41 and used for controlling ventilation of the air duct 41.

In this embodiment, the specific process of fixing the workpiece is: firstly swinging a plurality of swinging blocks 2 to enable the swinging blocks 2 to leave the mounting groove 11, then placing a workpiece in the mounting groove 11, aligning the workpiece with gaps among a plurality of limiting bosses 112, swinging a plurality of swinging blocks 2 to enable the swinging blocks 2 to move to the position right above the mounting groove 11 so as to limit the workpiece to exit the mounting groove 11 upwards, and after the swinging blocks 2 swing to the position right above the mounting groove 11, rebounding a return spring 32 so as to push a connecting rod 33 and a sealing head 31 to move, so that the connecting rod 33 is retracted into a fixed groove 15, and the sealing head 31 seals a pressure relief hole 13;

at this time, the vacuum suction pump 42 is started and the electromagnetic valve 43 is opened to suck the air in the suction passage 14 to form a vacuum state so that the vacuum suction hole 111 sucks the workpiece; after the suction is completed, the vacuum suction pump 42 is turned off and the electromagnetic valve 43 is turned on.

After the workpiece is machined, part of the swinging block 2 is firstly swung, so that the swinging block 2 drives the cam 22 to rotate, and the cam 22 pushes the connecting rod 33 to move outwards, and the reset spring 32 is compressed, so that the sealing head 31 is pushed to open the pressure relief hole 13; at this time, the vacuum suction pump 42 is controlled and the electromagnetic valve 43 is slowly opened, so that the air in the vacuum suction pump 42 is slowly discharged back into the suction channel 14, and most of the air in the suction channel 14 is discharged through the pressure relief hole 13 until the air pressure in the suction channel 14 is balanced with the atmosphere, so that the vacuum adsorption hole 111 loosens the workpiece; finally, all the swinging blocks 2 can be swung to open the mounting groove 11 and take out the workpiece.

The above-described embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the present utility model in any way. Any person skilled in the art can make many more possible variations and modifications of the technical solution of the present utility model or modify equivalent embodiments without departing from the scope of the technical solution of the present utility model by using the technical content disclosed above. Therefore, all equivalent changes according to the inventive concept are covered by the protection scope of the utility model without departing from the technical scheme of the utility model.

Claims

1. The utility model provides a vacuum clamp, includes fixing base (1), a plurality of swing piece (2), its characterized in that: the device comprises a fixing seat (1), wherein the top surface of the fixing seat (1) is provided with a mounting groove (11), the mounting groove (11) is used for placing a workpiece, a plurality of vacuum adsorption holes (111) are formed in the mounting groove (11), the vacuum adsorption holes (111) are used for fixing the workpiece in the mounting groove (11), a suction channel (14) is formed in the fixing seat (1), the side wall of the fixing seat (1) is respectively provided with a suction hole (12) and a plurality of pressure relief holes (13), and the suction channel (14) is respectively connected with the plurality of vacuum adsorption holes (111), the suction holes (12) and the plurality of pressure relief holes (13); the top surface of the fixed seat (1) is rotationally connected with a plurality of swinging blocks (2), and the swinging blocks (2) are swung to enable the swinging blocks (2) to move to the position right above the mounting groove (11) so as to limit the workpiece to exit from the mounting groove (11);

the pressure relief hole (13) is provided with an opening and closing device, and the opening and closing device is driven to open or close the pressure relief hole (13) by swinging the swinging block (2).

2. A vacuum chuck as in claim 1, wherein: a plurality of limiting bosses (112) are formed in the mounting groove (11), and the limiting bosses (112) are used for limiting the movement of the workpiece in the mounting groove (11).

3. A vacuum chuck as in claim 2, wherein: the top surface of the fixing seat (1) is rotationally connected with a plurality of rotating shafts (21), the rotating shafts (21) are respectively positioned at the periphery of the mounting groove (11), and each rotating shaft (21) is sleeved with the swinging block (2).

4. A vacuum chuck according to claim 3, wherein: the opening and closing device comprises a sealing head (31), two return springs (32) and two connecting rods (33), wherein the sealing head (31) is used for sealing the pressure relief hole (13), the outer side wall of the fixing seat (1) is connected with a plurality of connecting rods (33) in a sliding mode, the end parts of every two connecting rods (33) are connected with the sealing head (31) jointly, the return springs (32) are sleeved on the connecting rods (33), and the return springs (32) are used for pushing the sealing head (31) to close the pressure relief hole (13).

5. A vacuum chuck as in claim 4, wherein: the fixing base is characterized in that a plurality of fixing grooves (15) are formed in the outer side wall of the fixing base (1), one connecting rod (33) is arranged in each fixing groove (15), a first limiting flange (151) is formed in each fixing groove (15), a second limiting flange (331) is arranged on the outer side wall of each connecting rod (33), a reset spring (32) is arranged between each first limiting flange (151) and each second limiting flange (331), and the reset spring (32) is used for pushing the connecting rod (33) to retract into the corresponding fixing groove (15).

6. A vacuum chuck as in claim 5, wherein: the bottom end of the rotating shaft (21) is provided with a cam (22), the end part of the connecting rod (33) is propped against the cam (22), and the connecting rod (33) is driven to extend out of the fixing groove (15) by rotating the rotating shaft (21).

7. A vacuum chuck as in claim 6, wherein: still include air duct (41), vacuum pump (42) are connected to air duct (41) one end, and suction hole (12) are connected to the other end, wherein, be provided with solenoid valve (43) on air duct (41) and be used for controlling the ventilation of air duct (41).