CN111390617A - High-speed numerical control of thin wall spare frock for milling process - Google Patents
High-speed numerical control of thin wall spare frock for milling process Download PDFInfo
- Publication number
- CN111390617A CN111390617A CN202010486808.0A CN202010486808A CN111390617A CN 111390617 A CN111390617 A CN 111390617A CN 202010486808 A CN202010486808 A CN 202010486808A CN 111390617 A CN111390617 A CN 111390617A
- Authority
- CN
- China
- Prior art keywords
- cavity
- thin
- transmission sleeve
- partition plate
- linear driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
-
- 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
- B23Q3/086—Work-clamping means other than mechanically-actuated using a solidifying liquid, e.g. with freezing, setting or hardening means
Abstract
The invention discloses a tool for high-speed numerical control milling of a thin-walled part, which comprises a support and two shape following clamping devices oppositely arranged on the support, wherein each shape following clamping device comprises a first linear driving mechanism, a hollow shell, a heating mechanism, an air supply mechanism, a deformation mechanism and a floating clamp; the floating clamp comprises a cylinder body, a floating chuck, a piston, a second linear driving mechanism and a closed partition plate. The invention realizes flexible clamping of the thin-wall part, can effectively attach the thin-wall part, thereby effectively avoiding the thin-wall part from generating clamping deformation, improving the processing quality of the thin-wall part, realizing clamping of different thin-wall parts and having wide application range.
Description
Technical Field
The invention relates to the technical field of machining clamps, in particular to a tool for high-speed numerical control milling of a thin-wall part.
Background
The thin-wall part has the characteristics of light weight, material saving, compact structure and the like, but the thin-wall part is extremely easy to deform in the numerical control milling process due to poor rigidity and weak strength, so that the form and position error of the thin-wall part is increased, the processing quality of the thin-wall part is not easy to ensure, and the conventional tool for clamping the thin-wall part is easy to clamp and deform by adopting a rigid clamping mode, so that the size precision and the shape precision of the thin-wall part are influenced, the processing quality of the thin-wall part is influenced, and meanwhile, the conventional tool can only be used for clamping a single thin-wall part, has single functionality and is inconvenient to use.
Disclosure of Invention
The tool for high-speed numerical control milling of the thin-wall part is used for realizing flexible clamping of the thin-wall part and can be effectively attached to the thin-wall part, so that clamping deformation of the thin-wall part is effectively avoided, the processing quality of the thin-wall part is improved, clamping of different thin-wall parts can be realized, the application range is wide, and the use is convenient. In order to achieve the purpose, the invention provides a tool for high-speed numerical control milling of a thin-wall part, which comprises a support and two shape following clamping devices arranged on the support oppositely, wherein each shape following clamping device comprises a first linear driving mechanism, a hollow shell, a heating mechanism, an air supply mechanism, a deformation mechanism and a floating clamp;
one end of the hollow shell is open, and the other end of the hollow shell is of a closed structure; the closed end of the hollow shell is connected with the first linear driving mechanism, and the open end of the hollow shell is closed by the deformation mechanism; the deformation mechanism comprises a plane thermoplastic layer and an elastic outer layer wrapping the plane thermoplastic layer; the heating mechanism is connected with the plane thermoplastic layer; the inner cavity of the hollow shell is divided into a journey-going cavity, a return cavity and a deformation cavity from a closed end to an open end in sequence;
the floating clamp comprises a cylinder body, a floating chuck, a piston, a second linear driving mechanism and a closed partition plate; the cylinder body crosses the first partition plate, and two ends of the cylinder body are respectively positioned in the return stroke cavity and the forward stroke cavity; an inner baffle plate is arranged in the end, located in the stroke cavity, of the cylinder body; a rodless cavity is defined among the closed end of the hollow shell, the cylinder body and the inner partition plate, and a rod cavity is defined among the cylinder body, the inner partition plate and the second partition plate; the inner partition plate is provided with a through hole which is communicated with a rod cavity and a rodless cavity; one end of the piston is positioned in the rod cavity and movably matched with the inner wall of the cylinder body, the other end of the piston penetrates through the second partition plate and then extends into the deformation cavity, and the other end of the piston is hinged with the floating joint ball; a first air inlet hole is formed in the rodless cavity of the cylinder body; a second air inlet hole is arranged on the rod cavity of the cylinder body near the second clapboard;
the second linear driving mechanism is arranged outside the hollow shell; one end of the closed partition plate is positioned outside the hollow shell and is connected with the second linear driving mechanism, the other end of the closed partition plate sequentially penetrates through the hollow shell, enters the stroke cavity and penetrates through the cylinder body and the rodless cavity, and the closed partition plate is attached to the inner partition plate; the closed partition plate is provided with vent holes opposite to the inner partition plate, and the second linear driving mechanism drives the closed partition plate to move in the process chamber, so that the vent holes are opposite to or staggered with the through holes; the gas supply mechanism is arranged on the support; the gas supply mechanism is respectively communicated with the deformation cavity, the stroke-removing cavity and the return cavity.
The support is characterized by further comprising an inner supporting device, wherein the inner supporting device comprises an inner supporting body and a third linear driving mechanism, and the third linear driving mechanism is arranged on the support;
the inner support body comprises a bottom plate, an inner barrel and an elastic layer, the inner barrel is arranged on the bottom plate, the elastic layer wraps the inner barrel, the inner barrel is made of thermoplastic materials, the bottom plate is connected with the third linear driving mechanism, the inner barrel is connected with the heating mechanism, and the air supply mechanism is communicated with the inner barrel.
Further, the number of the floating clamps is multiple.
Further, the air supply mechanism is communicated with the deformation cavity through a first air charging and discharging valve, communicated with the trip cavity through a second air charging and discharging valve, and communicated with the return cavity through a third air charging and discharging valve.
Further, the air supply mechanism is communicated with the inner cylinder through a fourth air charging and discharging valve.
Further, the first linear driving mechanism is connected with the closed end of the hollow shell through a first guide mechanism.
Further, the third linear driving mechanism is connected with the bottom plate through a second guiding mechanism.
Furthermore, the heating mechanism comprises a first heating wire arranged in the plane thermoplastic layer, a second heating wire arranged in the inner barrel and a power supply connected with the first heating wire and the second heating wire.
Furthermore, the first linear driving mechanism comprises a first outer cover, a first driving motor, a first screw rod, a first driving gear and a first transmission sleeve, wherein a first internal thread through hole is formed in the center of the first transmission sleeve, and first outer gear teeth are formed in the outer surface of the first transmission sleeve; the first outer cover is arranged on the support; the first driving motor is connected with the first outer cover; the first driving gear is arranged on an output shaft of the first driving motor; the first transmission sleeve is sleeved on the first screw rod through a first internal thread through hole of the first transmission sleeve, and the first transmission sleeve and the first screw rod are in spiral transmission; the first driving gear is meshed with first outer gear teeth on the first transmission sleeve, and the first driving gear and the first transmission sleeve are covered by the first outer cover;
the first guide mechanism comprises a first guide column connected with the hollow shell, and a first guide hole penetrating through the first guide column is formed in the support.
Furthermore, the third linear driving mechanism comprises a second outer cover, a second driving motor, a second screw rod, a second driving gear and a second transmission sleeve, wherein a second internal thread through hole is formed in the center of the second transmission sleeve, and second external gear teeth are formed in the outer surface of the second transmission sleeve; the second housing is arranged on the support; the second driving motor is connected with the second housing; the second driving gear is arranged on an output shaft of the second driving motor; the second transmission sleeve is sleeved on the second screw rod through a second internal thread through hole of the second transmission sleeve, and the second transmission sleeve and the second screw rod are in spiral transmission; the second driving gear is meshed with second external gear teeth on the second transmission sleeve, and the second outer cover covers the second driving gear and the second transmission sleeve;
the second guide mechanism comprises a second guide column connected with the bottom plate, and a second guide hole penetrating through the second guide column is formed in the support.
The invention has the beneficial effects that: when the clamp is used, the support is arranged on a processing machine tool, the flexible clamping of the thin-wall part is realized through the two conformal clamping devices, and the thin-wall part can be effectively attached, so that the thin-wall part is effectively prevented from generating clamping deformation, and the processing quality of the thin-wall part is improved. Meanwhile, the invention can match the external dimensions of different thin-wall parts, can realize the clamping of different thin-wall parts, and has wide application range and convenient use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a partial perspective view of the conformal clamping device of the present invention.
Fig. 3 is a sectional perspective view of the floating clamp of the present invention.
Fig. 4 is a perspective view of the assembly of the floating jig, the first partition plate and the second partition plate according to the present invention.
Fig. 5 is a perspective view of the hollow shell, the first partition, the second partition and the airtight partition assembled according to the present invention.
FIG. 6 is a perspective view of the internal bracing apparatus of the present invention.
Fig. 7 is a schematic cross-sectional view of a deformation mechanism of the present invention.
The above reference numerals:
1 support, 20 first linear driving mechanism, 21 hollow shell, 22 deformation mechanism, 23 air supply mechanism, 24 first guide column, 25 floating clamp, 26 first partition plate, 27 second partition plate, 30 internal bracing device, 230 inflator pump, 231 air storage tank, 201 first driving motor, 202 first housing, 203 first driving gear, 204 first driving sleeve, 205 first screw rod, 250 cylinder body, 251 piston, 251 floating joint, 253 sealed partition plate, 254 second linear driving mechanism, 255 internal partition plate, 2501 rodless cavity, 2502 rod cavity, 2503 first air inlet hole, 2504 second air inlet hole, 2550 through hole, 2530 vent hole, 210 stroke cavity, 211 return stroke cavity, 212 deformation cavity, 301 elastic layer, 302 inner cylinder, 303 third linear driving mechanism, 304 second guide column, 305 bottom plate, 220 plane thermoplastic layer, 221 elastic outer layer.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It is to be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the generic and descriptive sense only and not for purposes of limitation, as the term is used in the generic and descriptive sense, and not for purposes of limitation, unless otherwise specified or implied, and the specific reference to a device or element is intended to be a reference to a particular element, structure, or component. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 7, the tool for high-speed numerical control milling of a thin-walled workpiece provided in this embodiment includes a support 1, and two conformal clamping devices oppositely disposed on the support 1, where the conformal clamping devices include a first linear driving mechanism 20, a hollow housing 21, a heating mechanism (not shown), an air supply mechanism 23, a deformation mechanism 22, and a floating clamp 25, and the first linear driving mechanism 20 is mounted on the support 1.
One end of the hollow shell 21 is open, and the other end of the hollow shell is of a closed structure; the closed end of the hollow shell 21 is connected with the first linear driving mechanism 20, and the open end is closed by the deformation mechanism 22; the deformation mechanism 22 comprises a planar thermoplastic layer 220 and an elastic outer layer 221 wrapping the planar thermoplastic layer 220; the heating mechanism is connected with the planar thermoplastic layer 220; the first partition plates 26 and the second partition plates 27 are alternately arranged in the inner cavity of the hollow shell 21, and the inner cavity of the hollow shell 21 is sequentially divided into a forward stroke cavity 210, a backward stroke cavity 211 and a deformation cavity 212 from a closed end to an open end.
The floating clamp 25 comprises a cylinder 250, a floating chuck 252, a piston 251, a second linear driving mechanism 254 and a sealing partition 253; the cylinder 250 crosses the first partition 26, and both ends of the cylinder 250 are respectively positioned in the return stroke cavity 211 and the forward stroke cavity 210; an inner partition plate 255 is arranged in the end, located in the forward stroke cavity 210, of the cylinder body 250; a rodless cavity 2501 is defined among the closed end of the hollow shell 21, the cylinder body 250 and the inner partition plate 255, and a rod cavity 2502 is defined among the cylinder body 250, the inner partition plate 255 and the second partition plate 27; a through hole 2550 is formed in the inner partition 255, and the through hole 2550 is communicated with a rod cavity 2502 and a rodless cavity 2501; one end of the piston 251 is positioned in the rod cavity 2502 and is movably matched with the inner wall of the cylinder 250, the other end of the piston 251 penetrates through the second partition plate 27 and then extends into the deformation cavity 212, and the other end of the piston 251 is in ball hinge joint with the floating joint 252; specifically, a ball head is arranged at the other end of the piston 251, and a spherical groove matched with the ball head is arranged on the floating joint 252; a first air inlet hole 2503 is formed in the rodless cavity 2501 of the cylinder body 250; a second air intake hole 2504 is provided on the rod chamber 2502 of the cylinder block 250 near the second partition 27.
The second linear driving mechanism 254 is installed outside the hollow housing 21; one end of the sealed partition 253 is located outside the hollow shell 21 and is connected with the second linear driving mechanism 254, the other end of the sealed partition 253 sequentially penetrates through the hollow shell 21, enters the stroke cavity 210, penetrates through the cylinder 250 and the rodless cavity 2501, and the sealed partition 253 is attached to the inner partition 255; a vent hole 2530 opposite to the inner partition 255 is arranged on the closed partition 253, and the second linear driving mechanism 254 drives the closed partition 253 to move in the process chamber 210, so that the vent hole 2530 is opposite to or staggered with the through hole 2550; the gas supply mechanism 23 is arranged on the support 1; the gas supply mechanism 23 is respectively communicated with the deformation cavity 212, the going cavity 210 and the returning cavity 211.
In this embodiment, the planar thermoplastic layer 220 is formed of a conventional thermoplastic. Thermoplastic refers to a plastic having heat softening and cold hardening properties. The process is reversible and can be repeated.
The working principle of the embodiment is as follows:
when in use, the support 1 is arranged on the existing processing machine tool, and the thin-wall part is positioned between the two conformal clamping devices; the first linear driving mechanism 20 drives the conformal clamping devices to move on the support 1, so that the distance between the two conformal clamping devices is adjusted according to the sizes of different thin-wall parts, the two conformal clamping devices are in contact with the outer surfaces of the thin-wall parts, and then the first linear driving mechanism 20 stops moving. At this point, the heating mechanism is activated to heat the planar thermoplastic layer 220, while the gas supply mechanism 23 inflates the deformable cavity 212 within the hollow housing 21; after the planar thermoplastic layer 220 is heated, the planar thermoplastic layer 220 becomes soft and flows, the gas in the deformation cavity 212 expands the deformation cavity 212, the deformation mechanism 22 can conform to the shape of the thin-wall part and deform, so that the deformation mechanism 22 is attached to the shape of the thin-wall part, the post-heating mechanism stops heating the planar thermoplastic layer 220, the planar thermoplastic layer 220 cools and hardens, and the gas supply mechanism 23 stops inflating the deformation cavity 212. At this time, the floating clamp 25 includes a vent 2530 on the closed partition 253 opposite to a through hole 2550 on the inner partition 255, the going chamber 210 is inflated by the air supply mechanism 23, high-pressure air enters the rodless chamber 2501 through the first air inlet hole 2503 and enters the rod chamber 2502 through the vent 2530 and the through hole 2550, thereby pushing the piston 251 to move towards the deformation mechanism 22, i.e. the floating joint 252 moves towards the deformation mechanism 22, so that the floating joint 252 tightly pushes against the deformation mechanism 22, and the two conformal clamping devices complete the clamping of the thin-walled part. After the thin-wall part is flexibly clamped, the second linear driving mechanism 254 drives the closed partition 253 to move, so that the vent hole 2530 and the through hole 2550 are staggered, the rod cavity 2502 and the rodless cavity 2501 are not communicated at the moment, the pressure in the cylinder body 250 is maintained, the position of the floating joint 252 is maintained, the floating clamp 25 is locked, and the clamping reliability of the thin-wall part is ensured. Meanwhile, the deformation mechanism 22 of the embodiment can be matched with the external dimensions of different thin-wall parts, can clamp different thin-wall parts, and is wide in application range and convenient to use.
After the thin-wall part is clamped, the machining machine tool can perform machining such as high-speed numerical control milling on the thin-wall part. After the thin-wall part is machined, the second linear driving mechanism 254 drives the sealing partition 253 to move, so that the vent hole 2530 is opposite to the through hole 2550, the rod cavity 2502 is communicated with the rodless cavity 2501, the air supply mechanism 23 charges the return cavity 211, high-pressure air enters the rod cavity 2502 through the second air inlet hole 2504, the piston 251 is pushed to move towards the inner partition 255, namely the floating joint 252 moves towards the inner partition 255, and the deformation mechanism 22 is loosened relative to the thin-wall part, so that the machined thin-wall part can be taken down.
Further preferably, in the embodiment, the tool for high-speed numerical control milling of the thin-walled workpiece further comprises an inner tightening device 30, the inner tightening device 30 comprises an inner support and a third linear driving mechanism 303, and the third linear driving mechanism 303 is mounted on the support 1; the inner support body comprises a bottom plate 305, an inner cylinder 302 arranged on the bottom plate 305 and an elastic layer 301 wrapping the inner cylinder 302, the inner cylinder 302 is made of thermoplastic materials, the bottom plate 305 is connected with a third linear driving mechanism 303, the inner cylinder 302 is connected with a heating mechanism, and the air supply mechanism 23 is communicated with the inner cylinder 302. In this embodiment, the inner cylinder 302 is made of a conventional thermoplastic.
In this embodiment, after the flexible clamping of the outer surface of the thin-wall part is completed by the two conformal clamping devices, when the flexible clamping of the inner hole of the thin-wall part is to be realized, the third linear driving mechanism 303 drives the inner support to move upwards to make the inner support contact with the inner hole of the thin-wall part, and then the third linear driving mechanism 303 stops moving. At the moment, the heating mechanism is started to heat the inner barrel 302, and meanwhile, the air supply mechanism 23 charges air into the inner barrel 302; after the inner cylinder 302 is heated, the inner cylinder 302 becomes soft and flows, high-pressure gas in the inner cylinder 302 expands the inner cavity 302, the elastic layer 301 can conform to the surface of the inner hole of the thin-wall part and deform and is attached to the inner hole of the thin-wall part, the rear heating mechanism stops heating the inner cylinder 302, the inner cylinder 302 cools and hardens, and the gas supply mechanism 23 stops inflating the inner cylinder, so that flexible clamping of the inner hole of the thin-wall part is completed.
In the embodiment, the adjustment of the force for clamping the thin-wall part by the conformal clamping device is realized by adjusting the inflation amount of the air supply mechanism 23 to the deformation cavity 212 and the inflation amount of the air supply mechanism 23 to the go-to cavity 210, so that the corresponding clamping force can be conveniently adjusted according to different thin-wall parts, and the clamping deformation can be effectively avoided.
In the embodiment, the inflation quantity of the air supply mechanism 23 to the inner barrel 302 is adjusted to realize the adjustment of the inner hole force of the thin-wall part supported and clamped by the inner support body, so that the corresponding tightening force can be conveniently adjusted according to different thin-wall parts, and the tightening deformation is effectively avoided.
In the present embodiment, the floating clamp 25 is preferably provided in a plurality, that is, a plurality of parallel cylinders 250 are provided in the hollow housing 21, so as to achieve effective flexible clamping of the thin-walled parts.
In this embodiment, the air supply mechanism 23 is preferably communicated with the deformation cavity 212 through a first air charge and discharge valve, communicated with the going cavity 210 through a second air charge and discharge valve, and communicated with the returning cavity 211 through a third air charge and discharge valve. In this embodiment, the air supply mechanism 23 is preferably connected to the inner cylinder 302 through a fourth air charge/discharge valve. So that the air supply mechanism 23 can realize inflation and deflation of the corresponding parts through the air inflation and deflation valves. When the inner tightening device 30 needs to be loosened relative to the thin-wall part, the fourth air inflation and deflation valve realizes the air deflation of the inner cylinder 302, so that the inner support body is loosened relative to the inner hole of the thin-wall part.
In the present embodiment, the number of the gas supply means 23 may be one or two, depending on the actual needs. And the air supply mechanism 23 includes an inflator 230 and an air tank 231 connected to the inflator 230, although other existing air supply mechanisms may be used.
In this embodiment, it is further preferable that the first linear driving mechanism 20 is connected to the closed end of the hollow casing 21 through a first guide mechanism. When the first linear driving mechanism 20 of the embodiment drives the shape following clamping device to move horizontally relative to the support 1, the first guiding mechanism realizes movement guiding, and the movement precision of the shape following clamping device is ensured.
As shown in fig. 2, the first linear driving mechanism 20 in this embodiment includes a first housing 202, a first driving motor 201, a first lead screw 205, a first driving gear 203, and a first transmission sleeve 204, wherein a first internal thread through hole is formed in the center of the first transmission sleeve 204, and a first external gear is formed on the outer surface of the first transmission sleeve 204; the first outer cover 202 is mounted on the support 1; the first driving motor 201 is connected with the first housing 202; the first driving gear 203 is mounted on an output shaft of the first driving motor 201; the first transmission sleeve 204 is sleeved on the first screw rod 205 through a first internal thread through hole of the first transmission sleeve, and the first transmission sleeve 204 and the first screw rod 205 are in screw transmission; the first driving gear 203 is engaged with the first external gear on the first transmission sleeve 204, and the first housing 202 covers the first driving gear 203 and the first transmission sleeve 204. Of course, the first linear driving mechanism 20 may also be an existing oil cylinder, air cylinder, electric push rod, etc.
In this embodiment, the first guide mechanism includes a first guide post 24 connected to the hollow housing 21, and the support 1 is provided with a first guide hole through which the first guide post 24 passes.
In this embodiment, it is further preferable that the third linear driving mechanism 303 is connected to the bottom plate 305 through a second guide mechanism. In this embodiment, when the third linear driving mechanism 303 drives the inner supporter to move up and down relative to the support 1, the second guiding mechanism is used to realize the movement guidance, so as to ensure the movement precision of the inner supporter.
In this embodiment, the third linear driving mechanism 303 includes a second housing, a second driving motor, a second lead screw, a second driving gear, and a second transmission sleeve, wherein a second internal thread through hole is formed in the center of the second transmission sleeve, and a second external gear is formed on the outer surface of the second transmission sleeve; the second housing is arranged on the support 1; the second driving motor is connected with the second housing; the second driving gear is arranged on an output shaft of the second driving motor; the second transmission sleeve is sleeved on the second screw rod through a second internal thread through hole of the second transmission sleeve, and the second transmission sleeve and the second screw rod are in spiral transmission; the second driving gear is engaged with the second external gear on the second transmission sleeve, the second driving gear and the second transmission sleeve are covered by the second housing, and the third linear driving mechanism 303 is identical to the first linear driving mechanism 20, as shown in fig. 2. Of course, the third linear driving mechanism 303 may also be an existing oil cylinder, air cylinder, electric push rod, etc.
In this embodiment, the second guide mechanism includes a second guide post 304 connected to the bottom plate 305, and the support 1 is provided with a second guide hole through which the second guide post 304 passes.
In the present embodiment, the second linear driving mechanism 254 is a conventional oil cylinder, air cylinder, electric push rod, or the like.
In this embodiment, the heating mechanism preferably includes a first heating wire disposed in the planar thermoplastic layer 220, a second heating wire disposed in the inner cylinder 302, and a power supply connected to the first heating wire and the second heating wire. The number of the first heating wires in the planar thermoplastic layer 220 is at least two, and the number of the second heating wires in the inner cylinder 302 is at least two, so that the heating speed of the planar thermoplastic layer 220 and the heating speed of the inner cylinder 302 are effectively increased, and the clamping efficiency is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The tool for high-speed numerical control milling of the thin-walled workpiece is characterized by comprising a support and two conformal clamping devices arranged on the support oppositely, wherein each conformal clamping device comprises a first linear driving mechanism, a hollow shell, a heating mechanism, an air supply mechanism, a deformation mechanism and a floating clamp;
one end of the hollow shell is open, and the other end of the hollow shell is of a closed structure; the closed end of the hollow shell is connected with the first linear driving mechanism, and the open end of the hollow shell is closed by the deformation mechanism; the deformation mechanism comprises a plane thermoplastic layer and an elastic outer layer wrapping the plane thermoplastic layer; the heating mechanism is connected with the plane thermoplastic layer; the inner cavity of the hollow shell is divided into a journey-going cavity, a return cavity and a deformation cavity from a closed end to an open end in sequence;
the floating clamp comprises a cylinder body, a floating chuck, a piston, a second linear driving mechanism and a closed partition plate; the cylinder body crosses the first partition plate, and two ends of the cylinder body are respectively positioned in the return stroke cavity and the forward stroke cavity; an inner baffle plate is arranged in the end, located in the stroke cavity, of the cylinder body; a rodless cavity is defined among the closed end of the hollow shell, the cylinder body and the inner partition plate, and a rod cavity is defined among the cylinder body, the inner partition plate and the second partition plate; the inner partition plate is provided with a through hole which is communicated with a rod cavity and a rodless cavity; one end of the piston is positioned in the rod cavity and movably matched with the inner wall of the cylinder body, the other end of the piston penetrates through the second partition plate and then extends into the deformation cavity, and the other end of the piston is hinged with the floating joint ball; a first air inlet hole is formed in the rodless cavity of the cylinder body; a second air inlet hole is arranged on the rod cavity of the cylinder body near the second clapboard;
the second linear driving mechanism is arranged outside the hollow shell; one end of the closed partition plate is positioned outside the hollow shell and is connected with the second linear driving mechanism, the other end of the closed partition plate sequentially penetrates through the hollow shell, enters the stroke cavity and penetrates through the cylinder body and the rodless cavity, and the closed partition plate is attached to the inner partition plate; the closed partition plate is provided with vent holes opposite to the inner partition plate, and the second linear driving mechanism drives the closed partition plate to move in the process chamber, so that the vent holes are opposite to or staggered with the through holes; the gas supply mechanism is arranged on the support; the gas supply mechanism is respectively communicated with the deformation cavity, the stroke-removing cavity and the return cavity.
2. The tool for high-speed numerical control milling of the thin-walled workpiece according to claim 1, further comprising an inner tightening device, wherein the inner tightening device comprises an inner support and a third linear driving mechanism, and the third linear driving mechanism is mounted on the support;
the inner support body comprises a bottom plate, an inner barrel and an elastic layer, the inner barrel is arranged on the bottom plate, the elastic layer wraps the inner barrel, the inner barrel is made of thermoplastic materials, the bottom plate is connected with the third linear driving mechanism, the inner barrel is connected with the heating mechanism, and the air supply mechanism is communicated with the inner barrel.
3. The tool for high-speed numerical control milling of the thin-walled workpiece according to claim 1, wherein the number of the floating clamps is multiple.
4. The tool for high-speed numerical control milling of the thin-walled workpiece according to claim 1, wherein the air supply mechanism is communicated with the deformation cavity through a first air charge and discharge valve, communicated with the trip cavity through a second air charge and discharge valve, and communicated with the return cavity through a third air charge and discharge valve.
5. The tool for high-speed numerical control milling of the thin-walled workpiece according to claim 1, wherein the air supply mechanism is communicated with the inner cylinder through a fourth air charge and discharge valve.
6. The tool for high-speed numerical control milling of the thin-walled workpiece according to claim 1, wherein the first linear driving mechanism is connected with the closed end of the hollow shell through a first guide mechanism.
7. The tool for high-speed numerical control milling of the thin-walled workpiece according to claim 2, wherein the third linear driving mechanism is connected with the bottom plate through a second guide mechanism.
8. The tool for high-speed numerical control milling of a thin-walled workpiece according to claim 2, wherein the heating mechanism comprises a first heating wire arranged in the plane thermoplastic layer, a second heating wire arranged in the inner cylinder, and a power supply connected with the first heating wire and the second heating wire.
9. The tool for high-speed numerical control milling of the thin-walled workpiece according to claim 6, wherein the first linear driving mechanism comprises a first outer cover, a first driving motor, a first lead screw, a first driving gear and a first transmission sleeve, a first internal thread through hole is formed in the center of the first transmission sleeve, and first external gear teeth are formed in the outer surface of the first transmission sleeve; the first outer cover is arranged on the support; the first driving motor is connected with the first outer cover; the first driving gear is arranged on an output shaft of the first driving motor; the first transmission sleeve is sleeved on the first screw rod through a first internal thread through hole of the first transmission sleeve, and the first transmission sleeve and the first screw rod are in spiral transmission; the first driving gear is meshed with first outer gear teeth on the first transmission sleeve, and the first driving gear and the first transmission sleeve are covered by the first outer cover;
the first guide mechanism comprises a first guide column connected with the hollow shell, and a first guide hole penetrating through the first guide column is formed in the support.
10. The tool for high-speed numerical control milling of the thin-walled workpiece according to claim 7, wherein the third linear driving mechanism comprises a second outer cover, a second driving motor, a second lead screw, a second driving gear and a second transmission sleeve, a second internal thread through hole is formed in the center of the second transmission sleeve, and second external gear teeth are formed in the outer surface of the second transmission sleeve; the second housing is arranged on the support; the second driving motor is connected with the second housing; the second driving gear is arranged on an output shaft of the second driving motor; the second transmission sleeve is sleeved on the second screw rod through a second internal thread through hole of the second transmission sleeve, and the second transmission sleeve and the second screw rod are in spiral transmission; the second driving gear is meshed with second external gear teeth on the second transmission sleeve, and the second outer cover covers the second driving gear and the second transmission sleeve;
the second guide mechanism comprises a second guide column connected with the bottom plate, and a second guide hole penetrating through the second guide column is formed in the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010486808.0A CN111390617B (en) | 2020-06-02 | 2020-06-02 | High-speed numerical control of thin wall spare frock for milling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010486808.0A CN111390617B (en) | 2020-06-02 | 2020-06-02 | High-speed numerical control of thin wall spare frock for milling process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111390617A true CN111390617A (en) | 2020-07-10 |
| CN111390617B CN111390617B (en) | 2020-09-01 |
Family
ID=71425672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010486808.0A Expired - Fee Related CN111390617B (en) | 2020-06-02 | 2020-06-02 | High-speed numerical control of thin wall spare frock for milling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111390617B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518389A (en) * | 2020-11-24 | 2021-03-19 | 广元博锐精工科技有限公司 | Conveniently-adjusted positioning device and method for machine tool accessory die |
| CN113385964A (en) * | 2021-08-18 | 2021-09-14 | 徐州中顺尚奕机械制造有限公司 | All-round dust suppression inflation formula tubular product of three-phase revolution mechanic presss from both sides tight processing all-in-one |
| CN113579780A (en) * | 2021-09-14 | 2021-11-02 | 安徽信息工程学院 | Mechanical adjustable clamp for drilling flexible part |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11198014A (en) * | 1998-01-09 | 1999-07-27 | Seiko Epson Corp | Manufacture of plastic lens |
| WO2006074650A1 (en) * | 2005-01-13 | 2006-07-20 | Mtu Aero Engines Gmbh | Gripping device |
| CN102825484A (en) * | 2011-06-13 | 2012-12-19 | 江南大学 | Flexible clamp based on phase-change material |
| CN102873513A (en) * | 2012-09-29 | 2013-01-16 | 北京航星机器制造公司 | Gas bulging forming method of large-sized thin-walled aluminum alloy ball-segment skin |
| CN202877315U (en) * | 2012-09-05 | 2013-04-17 | 哈尔滨工业大学空间钢结构幕墙有限公司 | Normal temperature or heat state fluid reconfigurable mould bulging device |
| CN103100907A (en) * | 2013-01-28 | 2013-05-15 | 北京航空航天大学 | Freezing fixation flexible clamp used for numerical control cutting machining of thin-walled part |
| CN205520611U (en) * | 2016-03-31 | 2016-08-31 | 苏州市合叶精密机械有限公司 | Flexible clamp |
| CN107470941A (en) * | 2017-08-23 | 2017-12-15 | 沈阳机床股份有限公司 | One kind processing aviation complex thin-walled member flexible fixture device and its manufacture method |
| CN110181303A (en) * | 2019-05-30 | 2019-08-30 | 庆铃汽车（集团）有限公司 | Spindle bar portion screw thread process fixture and device |
-
2020
- 2020-06-02 CN CN202010486808.0A patent/CN111390617B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11198014A (en) * | 1998-01-09 | 1999-07-27 | Seiko Epson Corp | Manufacture of plastic lens |
| WO2006074650A1 (en) * | 2005-01-13 | 2006-07-20 | Mtu Aero Engines Gmbh | Gripping device |
| CN102825484A (en) * | 2011-06-13 | 2012-12-19 | 江南大学 | Flexible clamp based on phase-change material |
| CN202877315U (en) * | 2012-09-05 | 2013-04-17 | 哈尔滨工业大学空间钢结构幕墙有限公司 | Normal temperature or heat state fluid reconfigurable mould bulging device |
| CN102873513A (en) * | 2012-09-29 | 2013-01-16 | 北京航星机器制造公司 | Gas bulging forming method of large-sized thin-walled aluminum alloy ball-segment skin |
| CN103100907A (en) * | 2013-01-28 | 2013-05-15 | 北京航空航天大学 | Freezing fixation flexible clamp used for numerical control cutting machining of thin-walled part |
| CN205520611U (en) * | 2016-03-31 | 2016-08-31 | 苏州市合叶精密机械有限公司 | Flexible clamp |
| CN107470941A (en) * | 2017-08-23 | 2017-12-15 | 沈阳机床股份有限公司 | One kind processing aviation complex thin-walled member flexible fixture device and its manufacture method |
| CN110181303A (en) * | 2019-05-30 | 2019-08-30 | 庆铃汽车（集团）有限公司 | Spindle bar portion screw thread process fixture and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518389A (en) * | 2020-11-24 | 2021-03-19 | 广元博锐精工科技有限公司 | Conveniently-adjusted positioning device and method for machine tool accessory die |
| CN113385964A (en) * | 2021-08-18 | 2021-09-14 | 徐州中顺尚奕机械制造有限公司 | All-round dust suppression inflation formula tubular product of three-phase revolution mechanic presss from both sides tight processing all-in-one |
| CN113579780A (en) * | 2021-09-14 | 2021-11-02 | 安徽信息工程学院 | Mechanical adjustable clamp for drilling flexible part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111390617B (en) | 2020-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111390617B (en) | High-speed numerical control of thin wall spare frock for milling process | |
| US8100046B2 (en) | Procedure for the loading of a working cylinder, control module for it, working cylinder and utilization of the same | |
| US5345766A (en) | Arrangement for carrying out a two-stage linear movement | |
| US5076090A (en) | Dual action equalizing apparatus | |
| CN213954052U (en) | Follow-up self-locking boosting hydraulic oil cylinder | |
| CN112276333B (en) | Motor housing terminal surface friction stir welding device with cooling flow channel | |
| CN209745500U (en) | Automobile throttle valve performance inspection device and plugging machine using same | |
| CN114536061B (en) | Positioning tool for machining compressor crankcase and machining positioning method | |
| CN214977263U (en) | Lower die hydraulic clamping device of numerical control plate bending machine for bus duct | |
| CN216464710U (en) | Arm of automatic control becomes more meticulous | |
| CN110823554B (en) | Multi-station elastic fatigue test tool | |
| KR20220056386A (en) | Seal plate manufacturing device of scroll compressor using CNC lathe | |
| CN220516139U (en) | Drilling and tapping tool for automobile flange | |
| CN215296978U (en) | Tensile resistance testing device for polyimide film detection | |
| CN117605726B (en) | Control device and control method for die-casting machine die hydraulic vacuum valve | |
| CN114235589B (en) | Clamp of pipe hydrostatic testing machine | |
| CN115816130B (en) | Automobile power generation machine shell adds clamping apparatus | |
| CN113736968B (en) | Polishing device and polishing method for inner wall surface of groove in hole | |
| KR102123532B1 (en) | Apparatus for simultaneously loading baffle assembly and lock ring for mounting fuel tank | |
| CN216067125U (en) | Double-end clamp | |
| CN114833366B (en) | Claw-adjustable pneumatic self-centering clamp | |
| CN215697848U (en) | Zinc alloy die-casting device | |
| CN112498782B (en) | Winding device of aluminum foil corrugated pipe with air bag | |
| CN212976526U (en) | Feeding type precision punching machine | |
| CN219172873U (en) | Tensioning mechanism and sealing production line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200901 Termination date: 20210602 |