CN218050857U

CN218050857U - Vacuum chuck clamp for laser cutting

Info

Publication number: CN218050857U
Application number: CN202222128851.7U
Authority: CN
Inventors: 陈卫民; 谢阳泉; 朱飞虎; 黄洁菲
Original assignee: Guangzhou Xianyi Electronic Technology Co ltd
Current assignee: Guangzhou Xianyi Electronic Technology Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-12-16
Anticipated expiration: 2032-08-11

Abstract

The utility model relates to a vacuum chuck anchor clamps for laser cutting, which comprises a base, the gasket, the suction nozzle, the striker plate, the chassis is hollow structure, the top on chassis is equipped with holds the chamber, it is equipped with a plurality of through-hole to hold the chamber bottom, the lateral wall on chassis is equipped with the inlet port that is used for the suction hole with vacuum pump connection and is used for being connected with the hair-dryer, the gasket with hold the chamber cooperation, be equipped with a plurality of jack on the gasket, the suction nozzle is inserted and is located in the jack, still be equipped with the striker plate that is used for preventing the work piece and drops on the chassis, be equipped with the telescopic link of being connected with the striker plate on the striker plate, the one end of keeping away from the striker plate on the telescopic link is equipped with the jack catch. The vacuum chuck is provided with the material baffle plate and the clamping jaws, the material baffle plate can prevent a workpiece from falling to damage the workpiece on the ground, and the clamping jaws can fix the workpiece on the vacuum chuck clamp better to prevent the workpiece from sliding on the clamp. The vacuum chuck is also connected with a blower, so that negative pressure in the chassis and the suction nozzle can be eliminated, and a machined workpiece can be conveniently taken down from the vacuum chuck.

Description

Vacuum chuck clamp for laser cutting

Technical Field

The utility model relates to a laser cutting technical field specifically relates to a vacuum chuck anchor clamps for laser cutting.

Background

Because laser cutting has fast, of high quality, the advantage that work efficiency is high, laser cutting's application in the metal cutting field is more and more extensive, and materials such as copper sheet, stainless steel piece, kovar alloy piece can often use the mode shaping of laser beam machining at present stage. Laser cutting machines are also being introduced by more and more factories, and the types of workpiece clamps suitable for laser cutting machines are also more and more. The positioning fixture for the precision laser cutting machine comprises an operating platform and a controller, wherein a positioning mechanism is arranged below the operating platform, a limiting fixture is arranged on the operating platform, and a dust removing mechanism is also arranged on the operating platform; a groove is formed in the center of the table top of the operating table, a movable plate is arranged at the bottom of the groove, the positioning mechanism comprises a lifting electric cylinder, a vacuum chuck is fixedly mounted on a piston rod of the lifting electric cylinder, and the vacuum chuck is located right below the center of the groove; the clamp comprises a plurality of clamp units, each clamp unit comprises a supporting rod, the lower end of each supporting rod is fixedly connected with a screw rod lifter, the other end of each supporting rod is provided with a screw rod motor, and a chuck is fixedly connected onto a rotating rod of each screw rod motor. The clamp is convenient to position, the position of the clamp can be freely adjusted as required, and the clamp can be suitable for processing plates of different specifications and sizes.

However, only one sucking disc adsorbs the workpiece in the clamp, and if the workpiece on the top of the sucking disc is not avoided during cutting, the closed structure of the sucking disc can be broken, the air tightness of the clamp is affected, and the sucking disc has no adsorption effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a break vacuum chuck's seal when cutting the work piece appears easily in the time of solving among the above-mentioned technical scheme, lead to the problem that the work piece dropped from vacuum chuck, provide a vacuum chuck anchor clamps for laser cutting.

The utility model adopts the technical proposal that: the utility model provides a vacuum chuck anchor clamps for laser cutting, which comprises a base, the gasket, the suction nozzle, the striker plate, the chassis is hollow structure, the top on chassis is equipped with holds the chamber, it is equipped with a plurality of through-hole to hold the chamber bottom, the lateral wall on chassis is equipped with the inlet port that is used for the suction hole with vacuum pump connection and is used for being connected with the hair-dryer, the gasket with hold the chamber cooperation, be equipped with a plurality of jack on the gasket, the suction nozzle is inserted and is located in the jack, still be equipped with the striker plate that is used for preventing the work piece from dropping on the chassis, be equipped with the telescopic link of being connected with the striker plate on the striker plate, the one end of keeping away from the striker plate on the telescopic link is equipped with the jack catch. Be equipped with the pole socket on the striker plate, still be equipped with the locking bolt that passes pole socket and telescopic link, the telescopic link can use the locking bolt to rotate as the rotation axis on the pole socket, and the locking bolt is equipped with lock nut, and after locking bolt and lock nut locking, telescopic link and pole socket fixed connection. The telescopic rod can not rotate on the rod seat. The clamping jaw is U-shaped, and the edge of the workpiece can be clamped into the inner cavity of the U-shaped clamping jaw to fix the workpiece.

The workpiece is placed on a suction nozzle of the vacuum chuck, then the vacuum pump starts to pump air, and air in the inner cavity of the chassis is pumped away, so that negative pressure is generated in the inner cavity of the chassis, the air pressure of the inner cavity of the suction nozzle is far less than the atmospheric pressure, the air pressure of the inner cavity of the suction nozzle communicated with the chassis is far less than the atmospheric pressure, and the workpiece on the suction nozzle is tightly pressed on the suction nozzle by the atmospheric pressure. Then the telescopic rod on the material baffle plate is rotated and stretched, so that the clamping jaw on the telescopic rod is clamped on the workpiece to fix the workpiece and prevent the workpiece from sliding on the vacuum chuck. The vacuum chuck is provided with the plurality of suction nozzles for carrying out multi-point adsorption on the workpiece, so that even if the laser cutting machine cuts the workpiece right above a certain suction nozzle, the suction nozzle leaks air, other suction nozzles can adsorb the workpiece, and the workpiece can not fall. The gasket with hold the chamber cooperation, hold the chamber bottom and be network structure, be equipped with a plurality of through-hole, can prevent that the gasket from being inhaled the inner chamber on chassis. The suction nozzle on the vacuum chuck is provided with a plurality of contact points, so that the vacuum chuck and the workpiece are provided with a plurality of contact points, when the workpiece is subjected to laser cutting, the vacuum chuck cannot leak air due to the fact that the workpiece is cut by the laser cutting machine, and the workpiece cannot be fixed on the chuck. The workpiece is not cut into several parts to cause the workpiece to fall off the vacuum chuck. After the workpiece is cut, the vacuum pump stops pumping air, the blower blows air to the inner cavity of the chassis from the air inlet hole, so that negative pressure of the chassis and the suction nozzle is eliminated, the workpiece is not adsorbed by the suction nozzle any more and falls onto a material baffle plate of the vacuum suction disc, and the cutting of the workpiece is finished.

Preferably, the vacuum chuck clamp is further provided with a support, the chassis is provided with a support fixedly connected with the chassis, the support is connected with the support in a sliding manner, and the support is provided with a limiting part for fixedly connecting the support with the support. The bracket is provided with scales. The laser cutting machine is divided into a manual focusing laser cutting machine and an automatic focusing laser cutting machine, and the cost of the automatic focusing laser cutting machine is higher than that of the manual focusing laser cutting machine, so that a factory is more inclined to quote the manual focusing laser cutting machine when the laser cutting machine is introduced. When the manual focusing laser cutting machine is used for focusing, a workpiece is required to move up and down to enable the focusing effect to be better. Therefore, the support is arranged on the clamp, the clamp is connected with the support in a sliding mode through the support, the vacuum chuck clamp can slide up and down on the support to adjust the focal length, and the scale is arranged on the support, so that the vacuum chuck can be conveniently focused.

Preferably, the gasket is the silica gel material, suction nozzle and jack interference fit. The heat resistance of silica gel material is better than rubber material and plastic material, and the hardness of silica gel is less than the metal material again simultaneously, and deformation can take place for the atress of silica gel material, and consequently the gasket is more suitable for the silica gel material. The suction nozzle is in interference fit with the jack, and the gasket in interference fit can be tightly attached to the suction nozzle, so that a gap is prevented from being generated between the suction nozzle and the gasket, and the vacuum sucker leaks air.

Preferably, be equipped with the arch on the periphery of gasket, the gasket with hold the chamber cooperation time, bellied bottom surface with hold the top surface laminating on chamber border. The protrusion is provided with a through hole, the chassis is provided with a threaded hole, when the gasket is matched with the containing cavity, the through hole and the threaded hole are coaxial, the chassis is also provided with a bolt matched with the threaded hole, and the bolt penetrates through the gasket. Be provided with the arch on the gasket, can increase the gas tightness between gasket and the chassis, be connected through the bolt between gasket and the chassis, can increase the joint strength between gasket and the chassis.

Preferably, the base plate and the suction nozzle are both made of stainless steel. One end of the suction nozzle, which is far away from the chassis, is in a horn shape, and a sealing washer is arranged on the outer edge of the horn-shaped end of the suction nozzle. The chassis and the suction nozzle need to be made of rigid materials to prevent the interior of the chassis and the suction nozzle from being pressed and deformed by atmospheric pressure after the interior of the chassis and the suction nozzle is vacuumized. The stainless steel material has rigidity, and its cost is lower, therefore chassis and suction nozzle all adopt stainless steel material. The end of the suction nozzle, which is far away from the chassis, is in a horn shape, so that the contact area of the suction nozzle and a workpiece can be increased, and the adsorption strength of the suction nozzle to the workpiece is increased. The outer edge of the horn-shaped end of the suction nozzle is provided with a sealing gasket, so that the sealing performance between the suction nozzle and a workpiece can be improved.

Preferably, the vacuum pump is connected with the air suction hole through a first air duct, the blower is connected with the air inlet hole through a second air duct, the first air duct is provided with a first valve, and the second air duct is provided with a second valve. When the vacuum pump sucks air, the second valve is closed, the first valve is opened, and after the suction of the vacuum pump is finished, the first valve is closed, so that the inner cavity of the vacuum sucker is a closed space. When the workpiece needs to be blown off, the second valve is opened, and the blower blows air to the inner cavity of the vacuum chuck, so that the workpiece is blown off from the vacuum chuck. The arrangement of the first valve and the second valve can enable the inner cavity of the vacuum sucker to form a closed space, the vacuum pump and the blower do not need to work all the time, and energy consumption is reduced.

Compared with the prior art, the beneficial effects of the utility model reside in that: the vacuum chuck is provided with the plurality of suction nozzles for carrying out multi-point adsorption on the workpiece, and even if the laser cutting machine cuts the workpiece right above a certain suction cup, the suction cup leaks air, and the workpiece can not fall off. The vacuum chuck is provided with the material baffle plate and the clamping jaws, the material baffle plate can prevent the workpiece from falling to damage the workpiece on the ground, and the clamping jaws can fix the workpiece on the vacuum chuck clamp better to prevent the workpiece from sliding on the clamp. The vacuum chuck is also connected with a blower, so that the negative pressure in the chassis and the suction nozzle is eliminated, and the processed workpiece falls off from the vacuum chuck without being adsorbed by the suction nozzle. The laser cutting machine is further provided with a support, and the vacuum chuck can slide up and down on the support, so that the laser cutting machine can be conveniently focused.

Drawings

Fig. 1 is a schematic structural view of a vacuum chuck clamp for laser cutting according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 of the present invention;

fig. 3 is a schematic structural view of the chassis of the present invention;

fig. 4 is a cross-sectional view of a gasket of the present invention;

fig. 5 is a schematic structural view of the suction nozzle of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for better illustration of the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1-4, an embodiment 1 of a vacuum chuck clamp for laser cutting includes a chassis 1, a gasket 2, a suction nozzle 3, and a striker plate 4, where the chassis 1 is a hollow structure, the top of the chassis 1 is provided with an accommodating cavity 101, and the bottom of the accommodating cavity 101 is provided with a plurality of through holes 102. The lateral wall of chassis 1 is equipped with suction hole 104 with vacuum pump connection and the inlet port 105 of being connected with the hair-dryer, and gasket 2 with hold chamber 101 cooperation, is equipped with a plurality of jack 201 on gasket 2, and suction nozzle 3 cooperatees with jack 201, still is equipped with striker plate 4 that is used for preventing the work piece from dropping on the chassis 1, is equipped with on striker plate 4 to rotate the telescopic link 5 of being connected with striker plate 4, and the one end of keeping away from striker plate 4 on telescopic link 5 is equipped with jack catch 501. The striker plate 4 is provided with a rod seat 401 and a locking bolt 402 penetrating through the rod seat 401 and the telescopic rod 5, the telescopic rod 5 can rotate on the rod seat 401 by taking the locking bolt 402 as a rotating shaft, the locking bolt 402 is matched with a locking nut 403, and after the locking bolt 402 is locked with the locking nut 403, the telescopic rod 5 is fixedly connected with the rod seat 401. The telescopic rod 5 cannot rotate on the rod seat 401. The clamping jaw 501 is U-shaped, and the edge of the workpiece can be clamped into the inner cavity of the U-shaped clamping jaw 501 to fix the workpiece.

The working principle or working process of the embodiment is as follows: the workpiece is placed on a suction nozzle 3 of the vacuum chuck, then the vacuum pump starts to pump air, and air in the inner cavity of the chassis 1 is pumped away, so that the inner cavity of the chassis 1 generates negative pressure, the air pressure of the inner cavity of the suction nozzle 3 communicated with the chassis 1 is far less than the atmospheric pressure, and the workpiece on the suction nozzle 3 is tightly pressed on the suction nozzle 3 by the atmospheric pressure. Then the telescopic rod 5 on the material baffle plate 4 is rotated and stretched, so that the workpiece is fixedly connected with the vacuum chuck. After the workpiece is cut, the vacuum pump stops pumping air, the blower blows air into the inner cavity of the chassis 1 from the air inlet 105, the negative pressure of the inner cavity of the chassis 1 and the suction nozzle 13 communicated with the chassis 1 disappears, and the workpiece is blown down onto the material baffle plate 4 of the vacuum chuck to finish cutting and collecting of the workpiece.

The beneficial effects of this embodiment: have a plurality of suction nozzle 3 on the vacuum chuck to carry out the multiple spot position to the work piece and adsorb, even laser cutting machine cuts the work piece directly over certain suction nozzle 3, leads to this suction nozzle 3 gas leakage, still can have other suction nozzles 3 to adsorb the work piece, the condition that the work piece dropped can not appear. The gasket 2 is matched with the accommodating cavity 101, the bottom of the accommodating cavity 101 is of a net structure, and a plurality of through holes 102 are formed in the bottom of the accommodating cavity, so that the gasket 2 can be prevented from being sucked into an inner cavity of the chassis 1. Be equipped with striker plate 4 and jack catch 501 on the vacuum chuck, striker plate 4 can prevent that the work piece from dropping and damaging the work piece subaerial, and jack catch 501 can be better with the fixing on the vacuum chuck anchor clamps of work piece, prevents that the work piece from sliding on anchor clamps. The vacuum chuck is also connected with a blower which can blow the processed workpiece down from the vacuum chuck. The suction nozzle 3 on the vacuum chuck is provided with a plurality of contact points, so that the vacuum chuck and the workpiece are provided with a plurality of contact points, when the workpiece is subjected to laser cutting, the vacuum chuck cannot leak air due to the fact that the workpiece is cut by the laser cutting machine, and the workpiece cannot be fixed on the chuck. The workpiece is not cut into several parts to cause the workpiece to fall off the vacuum chuck.

Example 2

An embodiment 2 of a vacuum chuck clamp for laser cutting is based on the embodiment 1, and as shown in fig. 1-4, the vacuum chuck further comprises a support 6.

Specifically, still be equipped with support 6 on the vacuum chuck anchor clamps, chassis 1 bottom is equipped with the support 7 with chassis 1 fixed connection, support 7 and support 6 sliding connection, are equipped with spacing portion 701 on the support 7 and are used for with support 7 and support 6 fixed connection. The bracket 6 is provided with scales.

The beneficial effects of this embodiment: be equipped with support 6 on anchor clamps, anchor clamps pass through support 7 and support 6 sliding connection, and the focus can be adjusted to the vacuum chuck anchor clamps slip from top to bottom on support 6, is equipped with the scale on support 6, the vacuum chuck focusing of being more convenient for.

Example 3

An embodiment 3 of a vacuum chuck jig for laser cutting is further defined in the structure of the vacuum chuck on the basis of the

embodiments

1 and 2, as shown in fig. 1 to 5.

Specifically, the gasket 2 is made of silica gel, and the suction nozzle 3 is inserted into the insertion hole 201 through interference fit. The chassis 1 and the suction nozzle 3 are both made of stainless steel. The end of the suction nozzle 3 far away from the chassis 1 is horn-shaped, and the outer edge of the horn-shaped end of the suction nozzle 3 is provided with a sealing gasket 301. Be equipped with arch 8 on the periphery of gasket 2, when gasket 2 and holding tank 101 cooperate, the bottom surface of arch 8 and the top surface laminating at holding tank 101 border. The protrusion 8 is provided with a through hole 801, the chassis 1 is provided with a threaded hole 103, when the gasket 2 is matched with the accommodating groove 101, the through hole 801 and the threaded hole 103 are coaxial, the chassis 1 is further provided with a bolt 9 matched with the threaded hole 103, and the bolt 9 penetrates through the gasket 2.

Specifically, the vacuum pump is connected with the air suction hole 104 through a first air duct, the blower is connected with the air inlet hole 105 through a second air duct, the first air duct is provided with a first valve 10, and the second air duct is provided with a second valve 11.

The working principle or working process of the embodiment is as follows: when the vacuum pump sucks air, the second valve 11 is closed, the first valve 10 is opened, and after the suction of the vacuum pump is finished, the first valve 10 is closed, so that the inner cavity of the vacuum sucker is a closed space. When the workpiece needs to be blown off, the second valve 11 is opened, and the blower blows air to the inner cavity of the vacuum chuck, so that the workpiece is blown off from the vacuum chuck.

The beneficial effects of this embodiment: the silica gel material still can receive the force deformation when having good heat resistance, therefore gasket 2 is more suitable for the silica gel material. Suction nozzle 3 and jack 201 interference fit, interference fit's gasket 2 can closely laminate with suction nozzle 3, prevents to produce the gap between suction nozzle 3 and the gasket 2 for vacuum chuck gas leakage. The stainless steel material has rigidity, and its cost is lower, therefore chassis 1 and suction nozzle 3 all adopt stainless steel material. The end of the suction nozzle 3, which is far away from the chassis 1, is in a horn shape, so that the contact area of the suction nozzle 3 and a workpiece can be increased, and the adsorption strength of the suction nozzle 3 to the workpiece is increased. The outer edge of one end of the horn-shaped suction nozzle 3 is provided with a sealing gasket 301, so that the sealing performance between the suction nozzle 3 and a workpiece can be improved. The periphery of the gasket 2 is provided with the bulge 8, so that the air tightness between the gasket 2 and the chassis 1 can be improved, the gasket 2 and the chassis 1 are connected through the bolts 9, and the connection strength between the gasket 2 and the chassis 1 can be improved. The arrangement of the first valve 10 and the second valve 11 can form a closed space in the inner cavity of the vacuum chuck, and the vacuum pump and the blower do not need to work all the time, thereby reducing the energy consumption.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a vacuum chuck anchor clamps for laser cutting, its characterized in that, includes chassis (1), gasket (2), suction nozzle (3), striker plate (4), chassis (1) is hollow structure, the top of chassis (1) is equipped with holds chamber (101), the bottom that holds chamber (101) is equipped with a plurality of through-hole (102), the lateral wall of chassis (1) is equipped with inlet port (105) that are used for with vacuum pump connection's suction hole (104) and are used for being connected with the hair-dryer, gasket (2) with hold chamber (101) cooperation, be equipped with a plurality of jack (201) on gasket (2), suction nozzle (3) are inserted and are located in jack (201), still be equipped with striker plate (4) that are used for preventing the work piece and drop on chassis (1), be equipped with on striker plate (4) with telescopic link (5) that striker plate (4) are connected, keep away from on telescopic link (5) the one end of striker plate (4) is equipped with jack catch (501).

2. The vacuum chuck clamp for laser cutting according to claim 1, further comprising a support (6), wherein a support (7) fixedly connected with the base plate (1) is arranged on the base plate (1), the support (7) is slidably connected with the support (6), and a limiting portion (701) is arranged on the support (7) and used for fixedly connecting the support (7) with the support (6).

3. Vacuum chuck clamp for laser cutting, according to claim 2, characterized in that the support (6) is provided with graduations.

4. Vacuum chuck clamp for laser cutting, according to claim 1, characterized in that the said spacer (2) is of silicone.

5. Vacuum chuck clamp for laser cutting according to claim 4, characterized in that the suction nozzle (3) is interference fit with the socket (201).

6. Vacuum chuck clamp for laser cutting according to claim 4, characterized in that the gasket (2) is provided with protrusions (8) on its periphery, and when the gasket (2) is fitted to the base plate (1), the bottom surface of the protrusions (8) is in contact with the top surface of the edge of the receiving cavity (101).

7. The vacuum chuck clamp for laser cutting as claimed in claim 6, wherein a through hole (801) is formed in the protrusion, a threaded hole (103) is formed in the base plate (1), when the gasket (2) is matched with the accommodating cavity (101), the through hole (801) and the threaded hole (103) are coaxial, a bolt (9) matched with the threaded hole (103) is further arranged on the base plate (1), and the bolt (9) penetrates through the gasket (2).

8. The vacuum chuck clamp for laser cutting as claimed in claim 1, characterized in that the base plate (1) and the suction nozzle (3) are made of stainless steel.

9. The vacuum chuck clamp for laser cutting according to claim 8, characterized in that the end of the suction nozzle (3) far away from the chassis (1) is flared and the outer edge of the flared end of the suction nozzle (3) is provided with a sealing gasket (301).

10. The vacuum chuck clamp for laser cutting according to claim 1, wherein the vacuum pump is connected with the air suction hole (104) through a first air duct, the blower is connected with the air inlet hole (105) through a second air duct, the first air duct is provided with a first valve (10), and the second air duct is provided with a second valve (11).