Cylindrical vacuum chuck tool clamp

Abstract

The invention discloses a cylindrical vacuum suction cup tool clamp, and belongs to the technical field of tool clamps, the cylindrical vacuum suction cup tool clamp comprises a cylindrical suction cup and a sealing strip, a plurality of circular sealing grooves are concentrically formed in the cylindrical suction cup in the radial direction, the corresponding circular sealing grooves are selected according to the sizes of different parts, and sealing is conducted through the sealing strip; by means of the negative pressure adsorption device, the formed negative pressure adsorption space can be expanded to the maximum outline of a part, the adsorbability of the part is improved, the adsorption safety and reliability of part clamping are guaranteed, and the machining efficiency is improved. The cylindrical vacuum chuck tool clamp is simple in structure, high in universality, low in manufacturing cost and high in working efficiency, achieves a good using effect and has good application prospects and popularization value.

Description

Technical Field

[0001] The invention belongs to the technical field of tooling fixtures, and in particular relates to a cylindrical vacuum suction cup tooling fixture. Background Art

[0002] Plate parts are widely used in CNC machining. During machining, they need to be clamped and fixed on the workbench by corresponding fixtures for subsequent processing. At present, plate parts are generally clamped by vacuum suction cups to save the auxiliary time of parts clamping and reduce the deformation of plate parts, effectively ensuring the machining quality and improving production efficiency.

[0003] However, current vacuum suction cup clamps are generally hexahedral in shape, which presents the following problems when clamping circular parts: (1) The sealing strip cannot be installed according to the maximum outer contour of the part, resulting in decreased adsorption force and loose clamping of the part; (2) The installation position of the sealing strip is not easy to determine and the auxiliary time for installing the sealing strip is prolonged. Summary of the invention

[0004] In response to one or more of the above defects or improvement needs of the prior art, the present invention provides a cylindrical vacuum suction cup tooling fixture, which can solve the problem of clamping circular parts on the vacuum suction cup, ensure that the sealing strip can be installed to the maximum outer contour of the circular part, and ensure that the parts are firmly clamped.

[0005] To achieve the above object, the present invention provides a cylindrical vacuum suction cup fixture, which includes a cylindrical suction cup and a sealing strip;

[0006] The cylindrical suction cup is provided with a sealing groove, the sealing groove includes a circular sealing groove and a radial sealing groove, the circular sealing groove is spaced and concentrically arranged in a plurality along the radial direction of the cylindrical suction cup, and the plurality of circular sealing grooves are connected through the radial sealing groove;

[0007] A plurality of air suction holes are arranged in the sealing groove along the circumferential direction, and an air inlet hole is arranged on the side wall of the cylindrical suction cup corresponding to each of the air suction holes, and the air suction holes and the air inlet holes are connected through a vent hole arranged inside the cylindrical suction cup;

[0008] The sealing strip is arranged in the circular sealing groove of the maximum diameter corresponding to the part to seal the circular sealing groove.

[0009] As a further improvement of the present invention, the radial sealing grooves are provided in plurality and are distributed in a cross-shaped pattern on the cylindrical suction cup.

[0010] As a further improvement of the present invention, the air suction hole is arranged at a position where the circular sealing groove and the radial sealing groove intersect.

[0011] As a further improvement of the present invention, the suction hole is arranged at a position close to the center of the cylindrical suction cup.

[0012] As a further improvement of the present invention, it also includes a plurality of connecting holes, which are distributed on the outside of each circular sealing groove to cooperate with the connecting piece and the pressing plate to assist in pressing the parts.

[0013] As a further improvement of the present invention, it further comprises a plurality of positioning holes, wherein the plurality of positioning holes are distributed on the outside of each of the circular sealing grooves, and the connecting holes and the positioning holes are distributed in sequence and at intervals along the outside of the circular sealing grooves.

[0014] As a further improvement of the present invention, the air intake hole is a threaded hole, and a copper filter exhaust cap is installed in the threaded hole.

[0015] As a further improvement of the present invention, it also includes a base, which is rectangular, the cylindrical suction cup is arranged on the base, and a plurality of waist-shaped grooves that can be connected to the machine tool workbench are arranged on the base.

[0016] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0017] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

[0018] (1) The cylindrical vacuum suction cup fixture of the present invention is provided with a plurality of circular sealing grooves concentrically along the radial direction on the cylindrical suction cup, and the corresponding circular sealing grooves are selected according to the sizes of different parts and sealed by sealing strips, so that the negative pressure adsorption space formed can be expanded to the maximum outer contour of the part, thereby increasing the adsorption of the part, ensuring the adsorption safety and reliability of the part clamping, and improving the processing efficiency.

[0019] (2) The cylindrical vacuum suction cup fixture of the present invention arranges a plurality of radial sealing grooves in a cross shape, and arranges the suction holes at the intersection of the circular sealing grooves and the radial sealing grooves, so as to improve the air permeability between each sealing groove and the suction holes, improve the suction efficiency of the suction holes, and shorten the negative pressure adsorption clamping time of the parts.

[0020] (3) The cylindrical vacuum suction cup fixture of the present invention has a simple structure, strong versatility, low manufacturing cost, high working efficiency, achieves good use effect, and has good application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 1 is a schematic diagram of a top view of a cylindrical vacuum suction cup fixture in an embodiment of the present invention;

[0023] Figure 2 1 is a schematic side view of the structure of a cylindrical vacuum chuck fixture in an embodiment of the present invention;

[0024] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0025] 1. Cylindrical suction cup; 11. Sealing groove; 111. Circular sealing groove; 112. Radial sealing groove; 12. Positioning hole; 13. Connecting hole; 14. Air suction hole; 15. Air inlet hole; 2. Base; 21. Waist-round groove. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] Example:

[0032] See also Figure 1-2 The cylindrical vacuum suction cup fixture in the preferred embodiment of the present invention includes a base 2 and a cylindrical suction cup 1 arranged on the base 2. A sealing groove 11 is arranged on the cylindrical suction cup 1, and a sealing strip is arranged corresponding to the sealing groove 11 to form a sealed vacuum adsorption area on the cylindrical suction cup 1 to adsorb and fix the parts.

[0033] Specifically, Figure 1 As shown in the figure, the sealing groove 11 in the preferred embodiment includes a circular sealing groove 111 and a radial sealing groove 112, wherein the circular sealing groove 111 is provided in plurality and is spaced and concentrically arranged along the radial direction of the cylindrical suction cup 1; correspondingly, the radial sealing groove 112 extends continuously along the radial direction of the cylindrical suction cup 1 and is cross-arranged with the plurality of circular sealing grooves 111 so as to connect the plurality of circular sealing grooves 111 through the radial sealing groove 112.

[0034] Preferably, a plurality of radial sealing grooves 112 are provided and distributed in a cross-shaped pattern on the cylindrical suction cup 1 .

[0035] Furthermore, a plurality of air intake holes 14 are annularly arranged in the sealing groove 11. The plurality of air intake holes 14 may be arranged in the circular sealing groove 111, in the radial sealing groove 112, or at the intersection of the circular sealing groove 111 and the radial sealing groove 112 to improve the air intake efficiency.

[0036] At the same time, an air inlet hole 15 is also provided on the side wall of the cylindrical suction cup 1 corresponding to each air suction hole 14. Figure 2 As shown in the figure, an air vent is arranged inside the cylindrical suction cup 1 to connect the air suction hole 14 and the air inlet hole 15 through the air vent, and a valve core is connected in the air inlet hole 15 to connect with the vacuum generating device through the valve core, and the air in the sealing groove 11 is extracted through the air suction hole 14 to achieve a vacuum negative pressure state, thereby forming a vacuum adsorption area in the sealing groove 11, and the parts are adsorbed by vacuum suction for cutting processing to meet work needs.

[0037] Correspondingly, in order to form a sealing area on the cylindrical suction cup 1, the present invention further provides a sealing strip, and sets the sealing strip in a circular sealing groove 111 of the maximum diameter corresponding to the part, and seals the circular sealing groove 111, thereby forming vacuum adsorption areas of different sizes on the cylindrical suction cup 1 according to the size of the part, thereby improving the applicability of the tooling fixture.

[0038] During actual setting, the sealing strip is selected and installed according to the maximum outer circle contour of the part, the installation position is easy to determine, and the auxiliary time for installing the sealing strip is significantly shortened.

[0039] It is understandable that the larger the size of the part, the larger the diameter of the circular sealing groove 111 corresponding to the sealing strip, the larger the sealing area, the larger the vacuum adsorption area, and the greater the adsorption force.

[0040] It is understandable that if a vacuum adsorption zone can be formed in the sealing area, the suction hole 14 must be in the sealing area. Therefore, the suction hole 14 is preferably set as close to the center of the cylindrical suction cup 1 as possible to increase the size range of the vacuum adsorption zone that can be formed, so that smaller parts can also be adsorbed and clamped, thereby improving the applicability of the tooling fixture.

[0041] In actual production, the width and depth of the circular sealing groove 111 should be slightly smaller than the size of the sealing strip to ensure the sealing effect of the sealing strip.

[0042] like Figure 1 In the preferred embodiment shown, two air suction holes 14 are provided and are arranged at the intersection of the third circular sealing groove 111 and the radial sealing groove 112 from the inside to the outside.

[0043] Preferably, the air intake hole 14 is set as a threaded hole, and a copper filter exhaust cap is installed in the threaded hole to prevent the air hole from being blocked by chips during the processing.

[0044] Furthermore, the present invention also provides a plurality of connection holes 13 on the cylindrical suction cup 1, which are distributed on the outside of each circular sealing groove 111, so as to cooperate with the connecting parts to supplement the clamping of the adsorbed parts when the surface of the parts is uneven, resulting in insufficient adsorption force or unable to meet the normal operation of the suction cup.

[0045] like Figure 1 As shown in , 8 groups of connection holes 13 are evenly spaced outside each circular sealing groove 111, and the number of connection holes 13 in each group is set according to the corresponding annular size. The connection holes 13 in the preferred embodiment are threaded holes with a size of M5 and a threaded hole depth of 15 mm, and can be processed by M5 hexagon socket bolts and a pressure plate to assist in clamping parts.

[0046] Preferably, a plurality of positioning holes 12 are further provided for supplementary clamping of corresponding parts, and the plurality of positioning holes 12 are also distributed on the outside of each circular sealing groove 111, and are spaced apart in sequence with the connecting holes 13 along the outside of the circular sealing groove 111, so that when the parts are connected and clamped, the position of the parts on the cylindrical suction cup 1 can be limited by the positioning holes 12 in cooperation with the positioning pins, which is convenient for mass production.

[0047] like Figure 1 As shown in , 8 groups of positioning holes 12 are evenly spaced outside each circular sealing groove 111 , and the number of positioning holes 12 in each group is set according to the corresponding annular size, and the size of each positioning hole 12 is φ4 mm.

[0048] Preferably, the material of the fixture in the present invention is aluminum alloy, which has a low cost, and the outer dimensions of the cylindrical suction cup 1 can be selected according to the size range of the products processed by the processing plant.

[0049] Furthermore, the base 2 in the present invention is a rectangular parallelepiped, which is combined with the upper cylindrical suction cup 1 to form a round top and square bottom structure, so that the entire fixture can be better installed with the machine tool workbench. At the same time, a plurality of waist-shaped grooves 21 are set on the base 2, which cooperate with the T-shaped grooves on the machine tool workbench, and the fixture is fixed on the machine tool workbench by bolts. Figure 1 As shown in FIG. 1 , a waisted groove 21 is respectively provided at the four corners of the rectangular parallelepiped base 2 .

[0050] Preferably, the cylindrical suction cup 1 and the base 2 are integrally provided and are processed as a whole.

[0051] The cylindrical vacuum suction cup fixture of the present invention has a simple structure, strong versatility, low manufacturing cost, high working efficiency, achieves good use effect, and has good application prospects and promotion value.

[0052] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylindrical vacuum chuck fixture, characterized in that: Includes cylindrical suction cup and sealing strip; The cylindrical suction cup is provided with a sealing groove, the sealing groove includes a circular sealing groove and a radial sealing groove, the circular sealing groove is spaced and concentrically arranged in a plurality along the radial direction of the cylindrical suction cup, and the plurality of circular sealing grooves are connected through the radial sealing groove; A plurality of air suction holes are arranged in the sealing groove along the circumferential direction, and an air inlet hole is arranged on the side wall of the cylindrical suction cup corresponding to each of the air suction holes, and the air suction holes and the air inlet holes are connected through a vent hole arranged inside the cylindrical suction cup; The sealing strip is arranged in the circular sealing groove of the maximum diameter corresponding to the part to seal the circular sealing groove.

2. The cylindrical vacuum chuck fixture according to claim 1, characterized in that: The radial sealing grooves are arranged in a plurality and are distributed in a cross-shaped pattern on the cylindrical suction cup.

3. The cylindrical vacuum chuck fixture according to claim 2, characterized in that: The air suction hole is arranged at a position where the circular sealing groove intersects the radial sealing groove.

4. The cylindrical vacuum chuck fixture according to claim 3, characterized in that: The air suction hole is arranged at a position close to the center of the cylindrical suction cup.

5. The cylindrical vacuum chuck fixture according to claim 1, characterized in that: It also includes a plurality of connection holes, which are distributed on the outside of each circular sealing groove to cooperate with the connection piece and the pressing plate to assist in pressing the parts.

6. The cylindrical vacuum chuck fixture according to claim 5, characterized in that: It also includes a plurality of positioning holes, which are distributed on the outside of each circular sealing groove, and the connecting holes and the positioning holes are distributed in sequence and at intervals along the outside of the circular sealing groove.

7. The cylindrical vacuum chuck fixture according to claim 1, characterized in that: The air intake hole is a threaded hole, and a copper filter exhaust cap is installed in the threaded hole.

8. The cylindrical vacuum chuck fixture according to any one of claims 1 to 6, characterized in that: The utility model also comprises a base, which is rectangular in shape, on which the cylindrical suction cup is arranged, and on which a plurality of waist-shaped grooves which can be connected to a machine tool workbench are arranged.

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