CN111843572A - Negative pressure suction tool for processing circular plane sheets - Google Patents
Negative pressure suction tool for processing circular plane sheets Download PDFInfo
- Publication number
- CN111843572A CN111843572A CN202010862612.7A CN202010862612A CN111843572A CN 111843572 A CN111843572 A CN 111843572A CN 202010862612 A CN202010862612 A CN 202010862612A CN 111843572 A CN111843572 A CN 111843572A
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- Prior art keywords
- circular
- processing
- sheet
- negative pressure
- clamp base
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- 210000004907 gland Anatomy 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000001179 sorption measurement Methods 0.000 claims description 47
- 229910052721 tungsten Inorganic materials 0.000 claims description 10
- 239000010937 tungsten Substances 0.000 claims description 10
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 2
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- 125000003003 spiro group Chemical group 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 235000013361 beverage Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/088—Work-clamping means other than mechanically-actuated using vacuum means
Abstract
The invention provides a negative pressure suction tool for processing a circular plane slice, which comprises a clamp base, a circular groove, a threaded gland and a sealing ring, wherein the circular groove is arranged on the clamp base; a circular groove is formed in the workbench of the clamp base, a circular sheet can be placed at the bottom of the circular groove, and the circular sheet is matched with the circular groove in size; the screw gland is matched with the outer side wall of the workbench of the clamp base, the screw gland is in threaded connection with the outer side wall of the workbench of the clamp base, and the bottom of the screw gland is provided with a through hole into which a machining tool electrode can conveniently extend; the sealing ring is used for sealing a gap between the bottom of the screw gland and the round sheet. By adopting the scheme, the circular thin slice is fixed, and the phenomena of deformation, warping, bulging and the like of the circular thin slice are avoided, so that the processing precision of the circular thin slice is ensured; the effects of preventing the edge of the circular slice from warping and preventing the circular slice from sliding can be achieved, and the processing reliability is ensured.
Description
Technical Field
The invention relates to the field of machining, in particular to a negative pressure suction tool for machining a circular plane sheet.
Background
The diameter-thickness ratio of the size of the circular slice reaches 20:1, and the circular slice is difficult to position the circle center, so that the workpiece is difficult to fix and position in the characteristic machining process of the slice, and the slice is very easy to deform, warp and the like, so that the machining quality is reduced. In the machining process, the flatness of two sides of a machined stainless steel sheet product is generally required to be within 2 microns, the requirement on the surface smoothness of the sheet is high, and the material cannot deform in the machining process. The conventional self-centering three-jaw numerical control lathe is easy to deform a sheet due to the fact that force is applied to the sheet when the sheet is clamped, and the flatness of a processed product is difficult to meet the requirement.
In addition, compress tightly fixedly through hydraulic means to processing thin slice lamellar body in addition, this method can avoid the thin slice because the atress is uneven produces the deformation, but this processing mode generally takes manual location to the processing work piece, and manual location efficiency is lower, can't satisfy automatic, batched numerical control production, influences the processing progress, and the leakage of hydraulic oil can produce the pollution to environment and work piece.
The fixture which only absorbs through negative pressure can not accurately position the workpiece in the same way as a hydraulic mode, and the machining precision can not be ensured.
Disclosure of Invention
The invention aims to solve the problems and provides a negative pressure suction tool for processing a circular plane sheet, which adopts the modes of negative pressure suction and mechanical structure positioning, ensures that the circular sheet is fixed and does not deform, warp, bulge and the like, and ensures the processing precision of the circular sheet; the effects of preventing the edge of the circular slice from warping and preventing the circular slice from sliding can be achieved, and the processing reliability is ensured. The fixture can realize the mass production of the circular thin slice, the repeated disassembly and the repeated repositioning are not needed, the smooth and easy processing process is ensured, only the circular thin slice needs to be replaced, and the installation and disassembly process of the circular thin slice is also convenient.
The technical scheme adopted by the invention is as follows: a negative pressure suction tool for processing a circular plane slice comprises a clamp base, a circular groove, a threaded gland and a sealing ring;
a circular groove is formed in the workbench of the clamp base, a circular sheet can be placed at the bottom of the circular groove, and the circular sheet is matched with the circular groove in size;
the screw gland is matched with the outer side wall of the workbench of the clamp base, the screw gland is in threaded connection with the outer side wall of the workbench of the clamp base, and the bottom of the screw gland is provided with a through hole into which a machining tool electrode can conveniently extend; the sealing ring is used for sealing a gap between the bottom of the screw gland and the round sheet.
When this scheme specifically functions, set up circular recess on the anchor clamps base, make the circular thin slice of processing just put into circular recess, place in circular recess bottom in, wherein circular recess's size should be according to circular thin slice size design, to the circular thin slice of not equidimension size, adopt the anchor clamps base that is provided with not equidimension recess, make circular thin size just match circular recess, make circular thin slice can't remove, the centre of a circle of circular recess is just the centre of a circle of circular thin slice this moment, the location to the circular thin slice centre of a circle has been realized, can also realize the volume production to circular thin slice. Furthermore, a screw gland is arranged above the circular sheet, the screw gland is similar to a beverage bottle cap and is provided with an inner side wall, the inner side wall is provided with threads, when the circular sheet is placed in the circular groove, the inner side wall of the screw gland is screwed with the outer side wall of the clamp base to provide fastening force, a sealing ring is placed on the circular sheet, the height of the sealing ring exceeds the circular groove, in the process that the screw gland rotates downwards, the bottom of the screw gland gradually presses the sealing ring and presses the circular sheet through the sealing ring, the circular sheet is finally pressed, the edge of the circular sheet is prevented from warping while the circular sheet is fixed, the edge of the circular sheet cannot deform under stress, and the sealing ring is used for preventing the circular sheet from being damaged when the screw gland presses the circular sheet and has a certain sealing effect; the bottom of the screw gland is provided with a through hole, so that a machining tool can enter from the through hole and machine the round slice.
Further, the fixture comprises a pressure equalizing cavity, wherein the pressure equalizing cavity is located inside the fixture base, an adsorption hole is formed in the center of the bottom of the circular groove, and the pressure equalizing cavity adsorbs the circular sheet through the adsorption hole in a negative pressure mode.
When the scheme is operated specifically, a pressure equalizing cavity is arranged in a clamp base, a vacuum principle is adopted in the pressure equalizing cavity to generate vacuum negative pressure, air pressure adsorbs a circular sheet through an adsorption hole, so that the circular sheet can be fastened at the bottom of a circular groove when a screw gland is not compressed, the edge of the circular sheet is compressed through a sealing ring by the screw gland, the middle part of the circular sheet is easy to be stressed and protruded during the processing process of the circular sheet, and the circular sheet is adsorbed through the adsorption hole at the center of the bottom of the circular groove, so that the middle part of the circular sheet is not easy to protrude; after the round sheet is processed, when the screw gland is taken out, the pressure equalizing cavity can be reversely pressurized, so that the round sheet can be taken out more conveniently and quickly, and the round sheet is not easily damaged.
Furthermore, the adsorption holes are multiple, and a plurality of circles of adsorption holes are arranged outside the adsorption holes in the center of the bottom of the circular groove.
When this scheme specifically operated, set up a plurality of absorption holes bottom circular recess, the equal pressure chamber can adsorb circular thin slice through a plurality of absorption holes, and the equal pressure chamber can produce even and the same pressure to a plurality of absorption holes this moment, makes circular thin slice atress even, further prevents that circular thin slice is protruding.
Furthermore, the aperture of the adsorption holes is smaller than that of the adsorption hole in the center of the bottom of the circular groove.
When the scheme is operated specifically, the central part of the circular sheet is stressed maximally and most easily generates bulges in the processing process, so that the adsorption force of the adsorption hole at the central position is maximized, and the adsorption forces of the multiple circles of adsorption holes at the periphery are smaller than that of the adsorption hole at the center, so that the phenomenon that the circular sheet cannot be taken out after the processing is finished due to overlarge adsorption force of the whole body or the circular sheet is blown away due to overlarge reverse force of the whole body during reverse pressurization to cause damage is avoided; and the adsorption hole is bigger, and the adsorption force is bigger, consequently sets up the adsorption hole radius of circular recess bottom central point department as the biggest, and many circles the aperture of adsorption hole all is less than the adsorption hole at circular recess bottom center.
Furthermore, the side surface of the clamp base is provided with an air suction hole which is communicated with the pressure equalizing cavity.
When this scheme specifically operated, set up the suction opening and communicate external equipment and provide vacuum environment for the voltage-sharing chamber, circular thin slice processing accomplishes the back, releases the pressure in the voltage-sharing chamber, or through the reverse pressurization of suction opening, promotes circular thin slice and is taken out the anchor clamps base.
Further, for guaranteeing the stability of vacuum degree and pressure in the pressure equalizing cavity and realizing the sealing effect, the sealing device is set as follows: still include the silica gel stopper, the silica gel stopper is used for sealed uniform pressure chamber bottom.
Further, for conveniently taking out circular thin slice, set up the rectangle recess, circular thin slice processing is accomplished the back, can follow rectangle recess department clamp and get circular thin slice to take out from the top, set up to: rectangular grooves are formed in two ends of a workbench of the clamp base, and the rectangular grooves are used for taking out circular thin slices in the grooves.
Further, in the electric spark machining process, for ensuring that the tool electrode can position the clamp base, the setting is as follows: the fixture comprises a fixture base and is characterized by further comprising a tungsten thin sheet, wherein the tungsten thin sheet is in threaded connection with the fixture base, and the tungsten thin sheet is used for positioning the tool electrode.
The invention has the following beneficial effects:
the scheme provides a negative pressure suction tool for processing a circular plane sheet, adopts the modes of negative pressure adsorption and mechanical structure positioning, ensures that the circular sheet is fixed and does not deform, warp, bulge and the like, and ensures the processing precision of the circular sheet; the effects of preventing the edge of the circular slice from warping and preventing the circular slice from sliding can be achieved, and the processing reliability is ensured. The fixture can realize the mass production of the circular thin slice, the repeated disassembly and the repeated repositioning are not needed, the smooth and easy processing process is ensured, only the circular thin slice needs to be replaced, and the installation and disassembly process of the circular thin slice is also convenient.
Drawings
FIG. 1 is a schematic structural view of a negative pressure suction tool for processing a circular planar sheet according to the present invention;
FIG. 2 is a schematic diagram of the negative pressure suction tool for processing a circular plane sheet according to the present invention after the thread is compressed;
FIG. 3 is a cross-sectional view of a negative pressure suction tool for processing circular planar sheets according to the present invention;
fig. 4 is a schematic structural diagram of a screw gland for processing a circular plane sheet according to the present invention.
The reference numbers in the figures are: 1-pressure equalizing cavity, 2-adsorption hole, 3-round groove, 4-rectangular groove, 5-tungsten sheet, 6-silica gel plug, 7-screw gland, 8-sealing ring, 9-clamp base, 10-air suction hole, 701-inner side wall and 702-through hole.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example (b): as shown in fig. 1 to 4, a negative pressure suction tool for processing a circular plane sheet comprises a clamp base 9, a circular groove 3, a screw gland 7 and a sealing ring 8;
a circular groove 3 is formed in the workbench of the clamp base 9, a circular sheet can be placed at the bottom of the circular groove 3, and the circular sheet is matched with the circular groove 3 in size;
the screw gland 7 is matched with the outer side wall of the workbench of the clamp base 9, the screw gland 7 is in threaded connection with the outer side wall of the workbench of the clamp base 9, and the bottom of the screw gland 7 is provided with a through hole 702 into which a machining tool electrode can conveniently extend; the sealing ring 8 is used for sealing the gap between the bottom of the screw gland 7 and the circular sheet.
In this embodiment, set up circular recess 3 on anchor clamps base 9, make the circular thin slice of processing just put into circular recess 3 in, and place in circular recess 3 bottom, wherein circular recess 3's size should be according to circular thin slice size design, to the circular thin slice of equidimension not, adopt the anchor clamps base 9 that is provided with the not recess of equidimension, make circular thin size just match circular recess 3, make circular thin slice can't remove, the centre of a circle of circular recess 3 is just the centre of a circle of circular thin slice this moment, the location to the circular thin slice centre of a circle has been realized, can also realize the volume production to circular thin slice. Furthermore, a screw gland 7 is arranged above the circular thin sheet, the screw gland 7 is similar to a beverage bottle cap and is provided with an inner side wall, the inner side wall is provided with screw threads, when the circular thin sheet is placed in the circular groove 3, the inner side wall of the screw gland 7 and the outer side wall of the clamp base 9 are screwed to provide a fastening force, and a sealing ring 8 is arranged on the circular slice, at the moment, the height of the sealing ring 8 exceeds the circular groove 3, in the process that the screw gland 7 rotates downwards, the bottom of the screw gland 7 is gradually pressed to the sealing ring 8 and pressed to the round thin sheet through the sealing ring 8, and finally the round thin sheet is pressed tightly, the sealing ring 8 is used for preventing the round sheet from being damaged when the screw gland 7 is pressed tightly, and has a certain sealing effect; the bottom of the screw gland 7 is provided with a through hole 702, so that a machining tool can enter from the through hole 702 to machine the round slice, and after machining is completed, the screw gland 7 is rotated reversely, so that the round slice can be taken out conveniently and quickly.
Further, still include pressure equalizing chamber 1, pressure equalizing chamber 1 is located inside the anchor clamps base 9, the center of 3 bottoms of circular recess is provided with adsorbs hole 2, pressure equalizing chamber 1 adsorbs circular thin slice through adsorbing hole 2 negative pressure.
In the embodiment, a pressure equalizing cavity 1 is arranged in a clamp base 9, a vacuum principle is adopted in the pressure equalizing cavity 1 to generate vacuum negative pressure, air pressure adsorbs a circular sheet through an adsorption hole 2, so that the circular sheet can be fastened at the bottom of a circular groove 3 when a screw gland 7 is not compressed, the edge of the circular sheet is compressed through a sealing ring 8 by the screw gland 7, the middle part of the circular sheet is easy to be stressed and protruded in the processing process, and the circular sheet is adsorbed through the adsorption hole 2 in the center of the bottom of the circular groove 3 at the moment, so that the middle part of the circular sheet is not easy to protrude; after the round thin sheet is processed, when the screw gland 7 is taken out, the uniform pressure cavity 1 can adopt reverse pressurization, so that the round thin sheet can be taken out more conveniently and quickly, and the round thin sheet is not easy to be damaged.
Further, the adsorption holes 2 are multiple, and a plurality of circles of adsorption holes 2 are arranged outside the adsorption holes 2 in the center of the bottom of the circular groove 3.
In this embodiment, set up a plurality of adsorption holes 2 in 3 bottoms of circular recess, pressure-equalizing chamber 1 can adsorb circular thin slice through a plurality of adsorption holes 2, and pressure-equalizing chamber 1 can produce even and the same pressure to a plurality of adsorption holes 2 this moment, makes circular thin slice atress even, further prevents that circular thin slice is protruding.
Further, the aperture of the adsorption holes 2 is smaller than that of the adsorption holes 2 in the center of the bottom of the circular groove 3.
In the embodiment, because the central part of the circular sheet is stressed maximally and most easily generates bulges in the processing process, the adsorption force of the adsorption hole 2 at the central position is required to be maximized, and the adsorption forces of the multiple circles of adsorption holes 2 at the periphery are all smaller than that of the adsorption hole 2 at the center, so that the phenomenon that the circular sheet cannot be taken out after the processing is finished due to overlarge adsorption force of the whole body or the circular sheet is blown away due to overlarge reverse force of the whole body during reverse pressurization to cause damage is avoided; and adsorption hole 2 is bigger, and adsorption affinity just is big more, consequently sets up 2 radiuses in the adsorption hole of 3 bottom central points of circular recess into the biggest, many circles the aperture of adsorption hole 2 all is less than the adsorption hole 2 at 3 bottom centers of circular recess.
Further, the side surface of the clamp base 9 is provided with an air suction hole 10, and the air suction hole 10 is communicated with the pressure equalizing cavity 1.
In this embodiment, the suction holes 10 are arranged to communicate with an external device to provide a vacuum environment for the pressure equalizing chamber 1, and after the circular sheet is processed, the pressure in the pressure equalizing chamber 1 is released, or the circular sheet is pushed to be taken out of the clamp base 9 by reversely pressurizing through the suction holes 10.
In this embodiment, for guaranteeing the stability of vacuum degree and pressure in the pressure equalizing chamber 1 to realize sealed effect, set up to: still include silica gel stopper 6, silica gel stopper 6 is used for sealed pressure-equalizing chamber 1 bottom.
In this embodiment, for conveniently taking out circular thin slice, set up rectangle recess 4, circular thin slice processing accomplishes the back, can follow rectangle recess 4 clamps and get circular thin slice to take out from the top, set up to: rectangular grooves 4 are formed in two ends of a workbench of the clamp base 9, and the rectangular grooves 4 are used for taking out circular sheets in the grooves.
In this embodiment, in the electric discharge machining process, in order to ensure that the tool electrode can position the fixture base 9, the setting is: the fixture is characterized by further comprising a tungsten thin sheet 5, wherein the tungsten thin sheet 5 is in threaded connection with a fixture base 9, and the tungsten thin sheet 5 is used for positioning a tool electrode.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A negative pressure suction tool for processing a circular plane slice comprises a clamp base (9), and is characterized by also comprising a circular groove (3), a threaded gland (7) and a sealing ring (8);
a circular groove (3) is formed in the workbench of the clamp base (9), a circular sheet can be placed at the bottom of the circular groove (3), and the circular sheet is matched with the circular groove (3) in size;
the workstation lateral wall of screw gland (7) and anchor clamps base (9) is mutually adapted, the workstation lateral wall spiro union of screw gland (7) and anchor clamps base (9), screw gland (7) bottom has through-hole (702) that the processing instrument electrode of being convenient for stretched into, sealing washer (8) are used for sealing the clearance between screw gland (7) bottom and the circular thin slice.
2. The negative pressure suction tool for processing the circular plane thin sheet is characterized by further comprising a pressure equalizing cavity (1), wherein the pressure equalizing cavity (1) is located inside a clamp base (9), an adsorption hole (2) is formed in the center of the bottom of the circular groove (3), and the pressure equalizing cavity (1) is used for adsorbing the circular thin sheet in a negative pressure mode through the adsorption hole (2).
3. The negative pressure suction tool for processing the circular plane thin sheet as claimed in claim 2, wherein the suction holes (2) are multiple, and a plurality of circles of suction holes (2) are arranged outside the suction holes (2) positioned at the center of the bottom of the circular groove (3).
4. The negative pressure suction tool for processing the circular plane thin sheet as claimed in claim 3, wherein the diameter of the adsorption holes (2) is smaller than that of the adsorption holes (2) at the bottom center of the circular groove (3).
5. The negative pressure suction tool for processing the circular plane sheets is characterized in that the side surface of the clamp base (9) is provided with a suction hole (10), and the suction hole (10) is communicated with the pressure equalizing cavity (1).
6. The negative pressure suction tool for processing the circular plane sheets is characterized by further comprising a silicon plug (6), wherein the silicon plug (6) is used for sealing the bottom of the uniform pressure cavity (1).
7. The negative pressure suction tool for processing the circular plane thin sheet is characterized in that rectangular grooves (4) are formed in two ends of a workbench of the clamp base (9), and the two rectangular grooves (4) are used for taking out the circular thin sheet in the grooves (3).
8. The negative pressure suction tool for processing the circular plane thin sheet is characterized by further comprising a tungsten thin sheet (5), wherein the tungsten thin sheet (5) is in threaded connection with a clamp base (9), and the tungsten thin sheet (5) is used for positioning a tool electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862612.7A CN111843572A (en) | 2020-08-25 | 2020-08-25 | Negative pressure suction tool for processing circular plane sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862612.7A CN111843572A (en) | 2020-08-25 | 2020-08-25 | Negative pressure suction tool for processing circular plane sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111843572A true CN111843572A (en) | 2020-10-30 |
Family
ID=72968132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010862612.7A Pending CN111843572A (en) | 2020-08-25 | 2020-08-25 | Negative pressure suction tool for processing circular plane sheets |
Country Status (1)
| Country | Link |
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| CN (1) | CN111843572A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571312A (en) * | 2020-11-23 | 2021-03-30 | 无锡市夸克微智造科技有限责任公司 | Facing sucking disc tool |
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