CN210878733U

CN210878733U - Vacuum chuck clamp

Info

Publication number: CN210878733U
Application number: CN201921634751.3U
Authority: CN
Inventors: 薛慧斌
Original assignee: Kunshan Ketian Precision Machinery Co ltd
Current assignee: Kunshan Ketian Precision Machinery Co ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-06-30
Anticipated expiration: 2029-09-28

Abstract

The utility model discloses a vacuum chuck clamp, use in the auxiliary fixtures field of the lathe, the technical problem that the chuck clamp can not hold the work piece to be processed that the shape is different is solved, its technical scheme main points are including the sucking disc base, sucking disc base upper surface is equipped with the support lug, form the profile groove between the support lug, be equipped with the air channel on some support lugs, sucking disc base side is equipped with the first gas outlet that communicates with the air channel, still include the sealing member, imbed the sealing member in the profile groove, form the bottom surface profile of the work piece to be processed, and the height of the closed loop profile that the sealing member formed is greater than the height of support lug, the work piece to be processed is placed on the closed loop profile that the sealing member formed, form a cavity, be connected first gas outlet and air exhaust device, take out the air in the cavity, make the work piece to be processed; the technical effect is that the closed loop profile formed by the sealing element can be changed at any time, so that the clamp can clamp workpieces to be processed in different shapes.

Description

Vacuum chuck clamp

Technical Field

The utility model belongs to the technical field of the technique of lathe auxiliary fixtures and specifically relates to a vacuum chuck anchor clamps are related to.

Background

In the current science and technology, numerical control machine tools are widely applied, processed devices are various, and in the processing process of a machine tool, the processed devices are required to be fixed in the machine tool, so that the smoothness of the processing process can be ensured, and the success rate of the processed devices is improved, so that a clamp on the machine tool is particularly important. The existing clamps are of various types and are mainly characteristic clamps designed aiming at different processing conditions.

The utility model discloses a chinese utility model patent that has a notice number CN206351377U now, a sucking disc anchor clamps and mould processing equipment is published, this equipment includes the sucking disc main part, be equipped with first sealing washer in the sucking disc main part, treat to process the work piece and closely combine with first sealing washer, constitute the cavity, the cavity bottom surface is equipped with the gas pocket, gas pocket and evacuation mechanism intercommunication, after evacuation mechanism begins to work, treat the cavity formation vacuum cavity that processing work piece and first sealing washer constitute, and then atmospheric pressure will treat that processing work piece presses in the sucking disc main part, except first sealing washer, still set up the sublayer sealing washer that is less than first sealing washer, a work piece for placing and be less than first sealing washer, all there is the gas pocket in every sealing washer.

The above prior art solutions have the following drawbacks: the first sealing ring and the secondary sealing ring on the sucker main body are fixed and cannot be changed according to the shape of a workpiece to be processed, so that the shape of the bottom of the workpiece to be processed is high in requirement and cannot adapt to workpieces in various shapes.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vacuum chuck anchor clamps, its advantage can the different work piece of treating of centre gripping shape.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a vacuum chuck anchor clamps, includes the sucking disc base, sucking disc base upper surface is equipped with the support convex block, forms the profile groove between the support convex block, is equipped with the air channel on some support convex blocks, sucking disc base side be equipped with the communicating first gas outlet of air channel, air exhaust device is connected to first gas outlet, inside establishing to the cavity of sucking disc base is equipped with the support column of connecting the inside upper and lower wall of sucking disc base in the cavity, still includes a plurality of length inequality and is used for imbedding the sealing member in profile groove, and is a plurality of the head and the tail concatenation of sealing member forms closed loop profile, the height that highly is higher than the support convex block of sealing member, sucking disc base upper surface center department is equipped with the communicating row of material opening with the cavity.

Through the technical scheme, the upper surface of the sucker clamp is provided with the supporting convex blocks which are regularly arranged, the supporting convex blocks form contour grooves all around, a part of the supporting convex blocks are provided with the vent grooves, the side surface of the sucker base is provided with the first air outlet communicated with the vent grooves, the first air outlet is connected with the air pumping device, the sucker clamp is internally provided with the cavity, the first air outlet is communicated with all the vent grooves, the air in the cavity inside the sucker clamp can be pumped out after the air pumping device is started, and the air above the vent grooves can be discharged to the outside through the first air outlet.

A plurality of support columns are welded in the cavity inside the sucker base, the support columns are not arranged below the support lug with the vent grooves, the ventilation function of the vent grooves cannot be influenced, the support columns enable the sucker base not to be deformed easily, the sucker base is not prone to cracking, and the sucker base can bear heavy workpieces to be processed.

The sealing element can form a closed loop contour of any shape in a contour groove formed by the supporting lug, the height of the closed loop contour is larger than that of the supporting lug, when a workpiece to be machined is placed on the closed loop contour, the workpiece to be machined, the closed loop contour and the sucker base form a closed cavity, the air extractor is started, air in the cavity can flow into the cavity of the sucker base through the air channel and then is exhausted to the outside through the first air outlet through the cavity, the cavity is changed into a vacuum cavity, and the workpiece to be machined is fixed on the clamp by utilizing the air pressure principle.

The center department of sucking disc base upper surface is equipped with row material opening, and sucking disc base side is equipped with the discharge gate, and the area of arranging the material opening is greater than the area of air channel, can with add the sweeps that produces man-hour by arrange the material opening clearance to sucking disc base cavity in, discharge by the discharge gate again, when arranging the material through-hole and being in inclosed cavity, still can play the same effect with the air channel.

The utility model discloses further set up to: the sucking disc base upper surface is equipped with the supplementary lug about sucking disc base central line symmetric distribution, and the cross-sectional area of supplementary lug is greater than the cross-sectional area of supporting the lug, and supplementary lug and supporting the lug height and equals, be equipped with the communicating supplementary groove with the cavity on the supplementary lug.

Through the technical scheme, the auxiliary lug is as high as the supporting lug, but the cross-sectional area of the auxiliary lug is larger than that of the supporting lug, the auxiliary lug is provided with the auxiliary groove communicated with the cavity, when the auxiliary lug is positioned in a closed loop profile formed by the sealing piece, the auxiliary groove and the vent groove play the same role, the auxiliary groove is not easy to block, and the speed of clamping a workpiece to be processed is accelerated.

The utility model discloses further set up to: and a second air outlet communicated with the cavity is arranged on the side surface of the sucker base, and the second air outlet and the first air outlet are positioned on the same side surface of the sucker base.

Through the technical scheme, the side face of the sucker clamp is provided with the second air outlet communicated with the cavity, the second air outlet can be connected with the air pumping device to replace the first air outlet to work or work simultaneously with the first air outlet, and the second air outlet and the first air outlet are arranged on the same side face of the sucker base, so that the air pumping device is convenient to connect.

The utility model discloses further set up to: the first air outlet is provided with a first valve, and the second air outlet is provided with a second valve.

Through the technical scheme, the first valve can block the communication between the first air outlet and the cavity in the sucker base, the second valve can block the communication between the second air outlet and the cavity in the sucker base, and when the discharge port is required to be used for cleaning and processing scraps, the first air outlet and the second air outlet can be closed by using the first valve and the second valve, only the discharge port is opened, so that the scraps are discharged from the discharge port; when only one air extractor is connected, the unused air outlet can be closed by using a valve, so that the forming speed of the vacuum cavity is increased; when the workpiece is released, the valve not connected with the air extractor can be opened to make the air entering the cavity and the closed cavity restore to normal air pressure.

The utility model discloses further set up to: the sucking disc base is equipped with the shutoff piece that can shutoff air channel, auxiliary tank, row's material opening and discharge gate.

Through the technical scheme, the air channel can be plugged up to the shutoff piece, the auxiliary tank, arrange material opening and discharge gate, the air channel that does not use, the auxiliary tank, arrange material opening and discharge gate and plug up the unable circulation of back gas with the shutoff piece, when air exhaust device connects first gas outlet and bleeds, close the second valve, the air channel that does not use is plugged up to the shutoff piece, the auxiliary tank, arrange material opening and discharge gate, make anchor clamps form vacuum state fast, the work piece is treated to the centre gripping, close first valve afterwards, keep the vacuum state of anchor clamps, avoid air exhaust device to work always. The blocking piece also makes the sweeps that the processing work piece produced can't fall into air channel, auxiliary tank, row's material opening and discharge gate in, prevents to block up.

The utility model discloses further set up to: the plugging piece is an iron sheet with magnetism.

Through above-mentioned technical scheme, the hardness of iron sheet is bigger, and is not fragile when the pressure that receives the atmosphere to give, and the magnetism iron sheet is adsorbable on the sucking disc base, facilitates the use and accomodates.

The utility model discloses further set up to: and pressing plates for fixing the sucker base are arranged on two sides of the sucker base.

Through above-mentioned technical scheme, the sucking disc base need be fixed in the digit control machine tool, just workable work piece, has mounting of mounting fixture in the lathe, and the clamp plate that sets up is blocked on the lathe by the mounting on the lathe, makes the sucking disc base can not slide when processing work piece man-hour.

The utility model discloses further set up to: the side that the sucking disc base was equipped with first gas outlet and the side that corresponds are equipped with supplementary recess.

Through the technical scheme, the two side faces of the sucker base are respectively provided with the auxiliary groove, the auxiliary grooves can be used for fixing parts in a machine tool to clamp the sucker base, and a user can also stretch fingers into the grooves through the auxiliary grooves to move the sucker base.

To sum up, the utility model discloses a beneficial technological effect does:

1. the clamp can clamp workpieces to be processed with different shapes and is convenient for cleaning scraps;

2. the speed of forming the vacuum cavity by the clamp is higher, and the processed workpiece is clamped more firmly;

3. the clamp does not need an air exhaust device to work all the time, thereby saving energy.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of the internal structure of the present embodiment;

fig. 3 is a partially enlarged view of fig. 1 of the present embodiment.

Description of the drawings, 1, a suction cup base; 110. a cavity; 120. a support pillar; 2. supporting the projection; 210. a contour groove; 3. a vent channel; 4. a first air outlet; 410. a first valve; 5. a second air outlet; 510. a second valve; 6. a seal member; 7. a discharge port; 710. a discharge port; 8. an auxiliary bump; 810. an auxiliary groove; 9. a blocking member; 10. pressing a plate; 11. an auxiliary groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a vacuum chuck clamp, including being the box body form and being the sucking disc base 1 of cavity 110, and the support lug 2 that is located sucking disc base 1 upper surface, the regular distribution of support lug 2 is at the upper surface of sucking disc base 1. A vent groove 3 is arranged on a part of the supporting convex block 2, and the vent groove 3 is communicated with the cavity 110 of the sucker base 1.

Referring to fig. 1 and 2, the upper surface of the suction cup base 1 is further provided with an auxiliary protrusion 8 having a cross-sectional area larger than that of the support protrusion 2, the auxiliary protrusion 8 and the support protrusion 2 have the same height, the auxiliary protrusion 8 is provided with an auxiliary groove 810 having a diameter larger than that of the vent groove 3, and the auxiliary groove 810 is communicated with the cavity 110 of the suction cup base 1.

Referring to fig. 1 and 2, a discharge port 7 is disposed at the center of the upper surface of the suction cup base 1, and the discharge port 7 is communicated with the cavity 110 of the suction cup base 1, so that the scraps of the processing workpiece on the upper surface of the suction cup base 1 can fall into the cavity 110 through the discharge port 7.

Referring to fig. 1 and 2, a plurality of support pillars 120 are further disposed in the cavity 110, two ends of each support pillar 120 are respectively and fixedly connected to the upper and lower walls inside the suction cup base 1, and the support pillars 120 do not affect the ventilation function of the ventilation grooves 3 and the auxiliary grooves 810, nor affect the discharge function of the discharge port 7.

Referring to fig. 1, the upper surface of the suction cup base 1 forms a contour groove 210 due to the arrangement of the supporting protrusions 2 and the auxiliary protrusions 8, the sealing member 6 can form a closed-loop contour of any shape in the contour groove 210, the height of the closed-loop contour is greater than that of the supporting protrusions 2, the sealing member 6 forms a closed-loop contour in the contour groove 210 according to the shape of the bottom surface of the workpiece to be machined, and a cavity is formed by placing the workpiece to be machined on the closed-loop contour.

Referring to fig. 1, a first air outlet 4, a discharge outlet 710 and a second air outlet 5 are arranged on the side surface of the suction cup base 1, a first valve 410 is arranged on the first air outlet 4, a second valve 510 is arranged on the second air outlet 5, a blocking piece 9 is arranged on the discharge outlet 710, blocking pieces 9 are arranged on the ventilation groove 3, the auxiliary groove 810 and the discharge port 7, and the blocking pieces 9 are magnetic iron sheets and can be adsorbed on any position of the suction cup base 1. The first air outlet 4 is communicated with an air suction pump to suck air, the second valve 510 is closed to enable the second air outlet 5 to be in a closed state, the ventilation groove 3, the auxiliary groove 810 and the discharge port 7 which are positioned outside the outline formed by the sealing element 6 are all blocked by the blocking element 9, the discharge port 710 is also blocked by the blocking element 9, so that a cavity formed by the sealing element 6 and a workpiece to be processed is vacuumized, then the first valve 410 is closed to enable the first air outlet 4 to be in a closed state, and the cavity is always in a vacuum state.

Referring to fig. 1, pressing plates 10 fixedly connected with the bottom surface are arranged on two sides of a sucker base 1, and the pressing plates 10 can be used for fixing fixtures on a numerical control machine; the other two sides of the sucker base 1 are provided with auxiliary grooves 11, and the auxiliary grooves 11 can be used for fixing fixtures on a numerical control machine tool and can also be used for transporting fixtures by a user.

The implementation principle of the embodiment is as follows: when the clamp is not used, the plugging piece 9 attached to the suction cup base 1 through magnetic force is placed on the supporting convex block 2 with the vent groove, the discharging through hole 7, the discharging hole 710 and the auxiliary convex block 8 to be plugged, so that the vent groove 3, the discharging through hole 7, the discharging hole 710 and the auxiliary groove 810 are prevented from being plugged due to scraps or sundries, and the use of the clamp is prevented from being influenced.

When the clamp is used, a roughly closed-loop contour is constructed in the contour groove 210 by the sealing element 6 according to the shape of the bottom surface of the workpiece to be processed, then the plugging piece 9 on the supporting lug 2 with the vent groove, the discharge through opening 7 and the auxiliary lug 8 in the closed-loop contour is removed, and the removed plugging piece 9 can be adsorbed on the side surface of the sucker base 1. The workpiece to be machined is placed on the closed loop contour, the workpiece to be machined and the sucker base 1 form a cavity, the first valve 410 is opened, the air suction pump is communicated with the first air outlet 4, the air suction pump is started, air in the cavity and air in the cavity 110 are both discharged to the outside of the clamp through the first air outlet 4, the cavity is in a vacuum state, the workpiece to be machined is clamped on the clamp under the action of air pressure, then the first valve 410 is closed, the first air outlet 4 is closed, the air suction pump is stopped, the clamp is carried to a machine tool, and the clamp is fixed on the machine tool through the pressure plate 10. In the carrying process, a carrier can carry the clamp by using the concave part of the auxiliary groove 11, so that the labor is saved; the fixture can be fixed by limiting or pressing the lower surface of the auxiliary groove 11 when the fixture is fixed.

The sealing member 6 is detachably inserted into the contour groove 210, and a closed-loop contour with a new shape can be formed at any time. Therefore, the clamp can clamp workpieces to be processed with different shapes.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A vacuum chuck clamp comprises a chuck base (1), wherein supporting convex blocks (2) are arranged on the upper surface of the chuck base (1), contour grooves (210) are formed among the supporting convex blocks (2), vent grooves (3) are formed in part of the supporting convex blocks (2), first air outlets (4) communicated with the vent grooves (3) are formed in the side surface of the chuck base (1), the first air outlets (4) are connected with an air extractor, the vacuum chuck clamp is characterized in that a cavity (110) is arranged inside the chuck base (1), supporting columns (120) connected with the upper wall and the lower wall inside the chuck base (1) are arranged in the cavity (110), the vacuum chuck clamp also comprises a plurality of sealing elements (6) which are different in length and are used for being embedded into the contour grooves (210), the head and the tail of the plurality of sealing elements (6) are spliced to form a closed-loop contour, and the height of the sealing elements (, the sucking disc base (1) upper surface center department is equipped with and arranges material through-hole (7) with cavity (110) communicating, and sucking disc base (1) side is equipped with and communicates with each other with cavity (110) discharge gate (710).

2. The vacuum chuck holder as claimed in claim 1, wherein the chuck base (1) is provided on the upper surface thereof with auxiliary protrusions (8) symmetrically distributed about the center line of the chuck base (1), the cross-sectional area of the auxiliary protrusions (8) is larger than that of the supporting protrusions (2), the auxiliary protrusions (8) and the supporting protrusions (2) have the same height, and the auxiliary protrusions (8) are provided with auxiliary grooves (810) communicating with the cavity (110).

3. Vacuum chuck clamp according to claim 1, characterized in that the chuck base (1) is provided with a second air outlet (5) on the side communicating with the cavity (110), the second air outlet (5) and the first air outlet (4) being located on the same side of the chuck base (1).

4. Vacuum chuck clamp according to claim 3, wherein the first air outlet (4) is provided with a first valve (410) and the second air outlet (5) is provided with a second valve (510).

5. Vacuum chuck clamp according to claim 2, characterized in that the chuck base (1) is provided with a blocking piece (9) which can block the venting groove (3), the auxiliary groove (810), the discharge through opening (7) and the discharge opening (710).

6. Vacuum chuck clamp according to claim 5, characterized in that the blocking piece (9) is a magnetically loaded iron sheet.

7. Vacuum chuck clamp according to claim 1, characterized in that the chuck base (1) is provided with pressure plates (10) on both sides for fixing the chuck base (1).

8. Vacuum chuck clamp according to claim 1, characterized in that the side of the chuck base (1) provided with the first air outlet (4) and the corresponding side are provided with an auxiliary groove (11).