CN109605072B - Mobile combined tool based on magnetic base and use method thereof - Google Patents

Mobile combined tool based on magnetic base and use method thereof Download PDF

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Publication number
CN109605072B
CN109605072B CN201811519087.8A CN201811519087A CN109605072B CN 109605072 B CN109605072 B CN 109605072B CN 201811519087 A CN201811519087 A CN 201811519087A CN 109605072 B CN109605072 B CN 109605072B
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base
magnetic
screw
bases
positioning
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CN109605072A (en
Inventor
姜振喜
牟文平
李卫东
周力
孙超
赵中刚
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Chengdu Aircraft Industrial Group Co Ltd
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Chengdu Aircraft Industrial Group Co Ltd
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    • 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
    • B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • 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
    • 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
    • B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
    • B23Q3/154—Stationary devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention discloses a movable combined tool based on a magnetic base, which comprises the magnetic base, a plurality of positioning bases, a plurality of vacuum adsorption bases, a plurality of edge strip pressing bases and a plurality of screw magnetic assemblies, wherein the positioning bases are arranged on the magnetic base; the using method comprises the following steps: step S1: drilling a threaded hole on the part and installing a screw magnetic component; step S2: clamping the part, and milling a first surface reference plane of a first surface in the x, y and z directions; step S3: carrying out rough and fine machining on a second surface of the part, and milling reference surfaces of the second surface in the directions of x, y and z; step S4: turning over the part, clamping the part according to the method shown in the step S3, and performing first-side finish machining; the invention effectively solves the problem of flexible non-boss clamping of the numerical control processing of non-magnetic material parts such as aluminum alloy, titanium alloy and the like, and effectively reduces the number of special tools; the problem that the use of a magnetic tool is limited by a non-magnetic material is effectively solved.

Description

Mobile combined tool based on magnetic base and use method thereof
Technical Field
The invention relates to the technical field of numerical control machining, in particular to a movable combined tool based on a magnetic base and a using method thereof.
Background
In the numerical control machining process of the aircraft structural part, the tool needs to be used for realizing reliable positioning and clamping of the part, so that the machining quality of the part is ensured.
At present, most of tools used in the numerical control machining process of aircraft structural parts adopt pin positioning and screw or pressing plate pressing to realize positioning and clamping of parts, process bosses are required to be arranged on the parts for clamping, the sizes of the parts are increased, the process bosses are required to be broken by a fitter, the connecting surfaces are polished, and the numerical control machining process is high in labor intensity and high in quality risk. In addition, due to the fact that the sizes and the structural types of the parts are different, the shapes of the positioning surfaces of the tool and the positions of the positioning holes and the pressing holes are different, and the universality of the tool is limited. In order to improve the universality of the tool, the following attempts are made:
(1) general pore-based platform: the universal hole system platform is provided with pressing holes arranged at a certain interval and positioning grooves matched with the positioning pins, and can be used for clamping parts with different sizes.
(2) Magnetic force adsorbs frock: the magnetic force adsorbs the frock can open the magnetic force state through the power, realizes the clamping of magnetic material part through adsorption affinity, but in the aircraft structure, the part that mostly is non-magnetic material such as aluminum alloy and titanium alloy, and the part can't directly be adsorbed to the magnetic force frock, has restricted the use of magnetic force adsorption frock.
Because the existing tool cannot meet the requirements of flexibility and generalization of the numerical control machining process of the airplane structural member and the problem that the use of a magnetic tool is limited by a non-magnetic material, a flexible and reliable magnetic clamping system for aluminum alloy and titanium alloy material parts and a clamping method capable of effectively reducing the size of the parts are urgently needed to be developed.
Disclosure of Invention
The invention aims to provide a movable combined tool based on a magnetic base and a using method thereof, which effectively solve the problem of flexible boss-free clamping of numerically-controlled machining of non-magnetic material parts such as aluminum alloy, titanium alloy and the like, and effectively reduce the number of special tools; the requirements of flexibility and universalization in the numerical control machining process of the airplane structural member are met, and the problem that the use of a magnetic tool is limited by a non-magnetic material is effectively solved.
The invention is realized by the following technical scheme:
a movable combined tool based on a magnetic base comprises the magnetic base, a plurality of positioning bases, a plurality of vacuum adsorption bases, a plurality of edge strip pressing bases and a plurality of screw magnetic assemblies; the positioning base, the vacuum adsorption bases, the bead compression bases and the screw magnetic assemblies are respectively in magnetic connection with the magnetic base, the bead compression bases form a cavity, and the vacuum adsorption bases are arranged in the cavity; the positioning bases are respectively arranged between two adjacent edge strip pressing bases and in the cavity.
Further, in order to better realize the invention, the flange strip pressing base comprises a base A magnetically connected with the magnetic base and a flange strip clamping part arranged on the base A, wherein the flange strip clamping part comprises a boss arranged on the base A and provided with a clamping groove and a clamping part arranged in the clamping groove.
Further, in order to better realize the invention, the clamping part comprises a baffle plate arranged in the clamping groove and a special-shaped screw which is in threaded connection with the boss and is hinged with one side of the baffle plate close to the side wall of the groove.
Furthermore, in order to better realize the invention, the vacuum adsorption base comprises a base B magnetically connected with the magnetic base, a vacuum cavity mounted on the base B and a sealing ring mounted on one side of the vacuum cavity far away from the base B, and the vacuum cavity is provided with an air suction hole.
Furthermore, in order to better realize the invention, one side of the base B, which is close to the vacuum cavity, is provided with a spherical hinge, and the vacuum cavity is connected with the base B through the spherical hinge.
Furthermore, in order to better realize the invention, the positioning base comprises a bottom plate magnetically connected with the magnetic base, a supporting column arranged on the bottom plate and a panel far away from one side of the supporting column far away from the bottom plate, the parallelism between the bottom plate and the panel is less than 0.1mm, and the planeness between the bottom plate and the panel is less than 0.1mm respectively.
Further, in order to better realize the invention, the screw magnetic assembly comprises a stop block provided with a countersunk hole and a screw matched with the countersunk hole, and the stop block is magnetically connected with the magnetic base.
A use method of a movable combined tool based on a magnetic base specifically comprises the following steps:
step S1: drilling a threaded hole on the part and installing a screw magnetic component;
step S2: the part clamping is realized by a magnetic component of a magnetic adsorption screw, rough machining is carried out by aligning the first surface of the part and establishing a rough machining reference, and first surface reference surfaces of the first surface in the x, y and z directions are milled in the rough machining process;
step S3: carrying out rough and fine machining on a second surface of the part, and milling reference surfaces of the second surface in the directions of x, y and z;
step S4: and (5) turning the part, clamping the part according to the method shown in the step S3, and performing first-side finish machining.
Further, in order to better implement the present invention, the step S3 specifically includes the following steps:
step S31: dismantling the magnetic assembly of the screw and turning over the part;
step S32: placing the first surface on the positioning base module, the vacuum adsorption base and the edge strip pressing base, and matching the panel of the positioning base with the z-direction reference surface milled in the step S2 to realize z-direction positioning;
step S33: starting a web plate of the vacuum adsorption base support part, and screwing down the flange strip to press the flange strip of the special-shaped screw clamping part of the base;
step S34: and opening the magnetic base, aligning the datum plane, establishing a machining coordinate system, performing rough machining and finish machining on the second surface of the part, and milling the datum planes in the x, y and z directions.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention effectively solves the problem of flexible non-boss clamping of the numerical control processing of non-magnetic material parts such as aluminum alloy, titanium alloy and the like;
(2) the invention effectively reduces the number of special tools;
(3) the invention meets the requirements of flexibility and generalization in the numerical control machining process of the airplane structural member;
(4) the invention effectively solves the problem that the use of the magnetic tool is limited by non-magnetic materials.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a state diagram of the present invention in use;
FIG. 3 is a schematic view of a vacuum chuck base according to the present invention;
fig. 4 is a schematic view of the structure of the bead pressing base according to the present invention.
Fig. 5 is a schematic view of the installation of the screw magnetic assembly of the present invention.
Fig. 6 is a schematic structural view of the screw magnetic assembly of the present invention.
The device comprises a magnetic base 1, a flange strip pressing base 2, a positioning base 3, a vacuum adsorption base 4, a part 5, a vacuum cavity 6, a sealing ring 7, an air suction hole 8, a baffle 9, a special-shaped screw 10, a stop block 11, a screw 12 and a counter sink 13.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1:
the invention is realized by the following technical scheme, as shown in figures 1-6, a mobile combined tool based on a magnetic base comprises a magnetic base 1, a plurality of positioning bases 3, a plurality of vacuum adsorption bases 4, a plurality of edge strip pressing bases 2 and a plurality of screw magnetic components; the positioning base 3, the vacuum adsorption bases 4, the bead compression bases 2 and the screw magnetic assemblies are respectively in magnetic connection with the magnetic base 1, the bead compression bases 2 form a cavity, and the vacuum adsorption bases 4 are arranged in the cavity; the positioning bases 3 are respectively arranged between the two adjacent bead pressing bases 2 and in the cavity.
It is noted that, through the improvement, the screw magnetic component is made of magnetic materials
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 2:
the embodiment is further optimized on the basis of the above embodiment as shown in fig. 4, and further, in order to better implement the present invention, the bead pressing base 2 includes an a base magnetically connected to the magnetic base 1, and a bead clamping portion mounted on the a base, where the bead clamping portion includes a boss mounted on the a base and provided with a clamping groove, and a clamping portion mounted in the clamping groove.
Further, in order to better realize the invention, the clamping part comprises a baffle plate 9 arranged in the clamping groove and a special-shaped screw 10 which is connected with the boss in a threaded mode and is hinged with one side, close to the side wall of the groove, of the baffle plate 9.
It should be noted that, through the above improvement, the base a is placed on the magnetic base 1 for magnetic adsorption and fixation of the module; the clamping part consists of a baffle 9 and a special-shaped screw 10, one side of the baffle 9, which is close to the special-shaped screw 10, is provided with a mounting groove, one end of the special-shaped screw 10, which is close to the special-shaped screw 10, is provided with a spherical hinge, the spherical hinge is mounted in the mounting groove so as to realize the hinge joint of the baffle 9 and the special-shaped screw 10, the special-shaped screw 10 is connected with the base through threads, the tightening screw 12 can drive the baffle 9 to compress the edge strip of the part 5, and the; the quantity that the cap compressed tightly base 2 chooses for use according to 5 sizes of part, and the general interval need set up a cap and compress tightly base 2 for 200 ~ 300 mm.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 3:
the present embodiment is further optimized on the basis of the above embodiment, as shown in fig. 3, and further, in order to better implement the present invention, the vacuum adsorption base 4 includes a base B magnetically connected to the magnetic base 1, a vacuum cavity 6 installed on the base B, and a sealing ring 7 installed on one side of the vacuum cavity 6 away from the base B, and the vacuum cavity 6 is provided with an air suction hole 8.
Further, in order to better realize the invention, a spherical hinge is arranged on one side of the base B close to the vacuum cavity 6, and the vacuum cavity 6 is connected with the base B through the spherical hinge.
It should be noted that, through the above improvement, the base B is placed on the magnetic base 1 for magnetic adsorption and fixation of the module; the vacuum cavity 6 is connected with the base in a spherical hinge mode; the sealing ring 7 is matched and sealed with the lower surface of the web plate of the part 5, and forms a vacuum cavity together with the vacuum cavity 6;
the vacuum adsorption base 4 further comprises a conduit and an air pump, wherein one end of the conduit is connected with the air pump, and the other end of the conduit is connected with the air exhaust hole 8.
The air pump pumps air in the vacuum cavity to form a negative pressure environment, so that the web plate of the part 5 is supported, the rigidity of the web plate is improved, and the conditions of unstable cutting vibration and poor surface quality caused by weak rigidity of the suspended web plate are prevented; the number of vacuum adsorption bases 4 is selected according to the number of webs supported by the parts 5.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 4:
the present embodiment is further optimized based on the above embodiments, as shown in fig. 1, and further, in order to better implement the present invention, the positioning base 3 includes a bottom plate magnetically connected to the magnetic base 1, a supporting column installed on the bottom plate, and a face plate far away from the bottom plate side of the supporting column, wherein a parallelism between the bottom plate and the face plate is less than 0.1mm, and a flatness between the bottom plate and the face plate is less than 0.1mm, respectively.
It should be noted that, through the above improvement, the bottom plate is matched with the surface of the magnetic base 1, the panel is matched with the reference surface on the part 5, the planeness of the positioning surface is less than 0.1mm, and the parallelism is less than 0.1 mm; the positioning base 3 has different upper positioning surface dimension specifications so as to adapt to the structural sizes of the parts 5, such as groove cavities and the like; the positioning base 3 has different height specifications, and the lower end of the cat product positioned by the part 5 is ensured to have enough space for placing the vacuum adsorption base 4 and the edge strip pressing base 2.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 5:
the present embodiment is further optimized on the basis of the above embodiments, as shown in fig. 5 and fig. 6, and further, in order to better implement the present invention, the screw magnetic assembly includes a stopper 11 provided with a countersunk hole 13, and a screw 12 used in cooperation with the countersunk hole 13, where the stopper 11 is magnetically connected to the magnetic base 1.
It should be noted that, through the above improvement, the screw magnetic assembly includes the screw 12 and the stopper 11, the screw 12 and the stopper 11 are both made of magnetic materials, the stopper 11 is provided with the counter bore 13, one end of the screw 12 is connected with the threaded hole on the part 5, and the other end of the screw presses the stopper 11 through the special-shaped counter bore 13, so as to be used for magnetic clamping during rough machining of the part 5.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 6:
the embodiment is further optimized on the basis of the above embodiment, and as shown in fig. 1 to 6, a method for using a mobile combination tool based on a magnetic base specifically includes the following steps:
step S1: drilling a threaded hole on the part 5 and installing a screw magnetic component;
step S2: clamping of the part 5 is achieved through a magnetic component of a magnetic adsorption screw, rough machining is conducted through aligning the first surface of the part 5 and establishing a rough machining reference, and first surface reference surfaces of the first surface in the x direction, the y direction and the z direction are milled in the rough machining process;
placing the part 5 on the magnetic base 11 with the surface, on which the screw magnetic assembly is installed, facing downwards in the step S1, opening the magnetic base 11 to realize the adsorption and fixation of the part 5, and then performing rough machining on the first surface of the part 5. The surface of the part 5 connected with the screw magnetic component is set as a second surface; the plane symmetrical to the second plane is the first plane.
Step S3: carrying out rough and fine machining on a second surface of the part 5, and milling reference surfaces of the second surface in the directions of x, y and z;
the step S3 specifically includes the following steps:
step S31: and removing the screw magnetic assembly.
Step S32: placing the first surface of the part 5 on the positioning base 3 module, the vacuum adsorption base 4 and the edge strip pressing base 2, and matching the panel of the positioning base 3 with the z-direction reference surface milled in the step S2 to realize z-direction positioning;
step S33: starting a web plate of the vacuum adsorption base 4 supporting part 5, and screwing down a deformed screw 10 of the flange strip pressing base 2 to clamp the flange strip of the part 5;
step S34: and (3) starting the magnetic base 1, aligning the datum plane to establish a machining coordinate system, performing rough machining and finish machining on the second surface of the part 5, milling the datum planes in the x, y and z directions, and finishing machining of the second surface.
Step S4: turning over the part 5, clamping the part 5 according to the method shown in the step S3, and performing first-side finish machining; the method specifically comprises the following steps:
step S41: placing the second surface of the part 5 on the positioning base 3 module, the vacuum adsorption base 4 and the edge strip pressing base 2, and matching the panel of the positioning base 3 with the z-direction reference surface milled in the step S2 to realize z-direction positioning;
step S42: starting a web plate of the vacuum adsorption base 4 supporting part 5, and screwing down a deformed screw 10 of the flange strip pressing base 2 to clamp the flange strip of the part 5;
step S43: starting the magnetic base 1, aligning the datum plane, establishing a machining coordinate system, performing finish machining on the first surface of the part 5, and milling datum planes in the x, y and z directions; and finishing the first surface processing.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims (5)

1. The utility model provides a remove combination frock based on magnetic base which characterized in that: the device comprises a magnetic base (1), a plurality of positioning bases (3), a plurality of vacuum adsorption bases (4), a plurality of edge strip pressing bases (2) and a plurality of screw magnetic assemblies; the positioning base (3), the vacuum adsorption bases (4), the bead compression bases (2) and the screw magnetic assemblies are respectively in magnetic connection with the magnetic base (1), the bead compression bases (2) form a cavity, and the vacuum adsorption bases (4) are arranged in the cavity; the positioning bases (3) are respectively arranged between two adjacent edge strip pressing bases (2) and in the cavity;
the edge strip pressing base (2) comprises a base A magnetically connected with the magnetic base (1) and an edge strip clamping part arranged on the base A, and the edge strip clamping part comprises a boss arranged on the base A and provided with a clamping groove and a clamping part arranged in the clamping groove;
the clamping part comprises a baffle plate (9) arranged in the clamping groove and a special-shaped screw (10) which is in threaded connection with the boss and is hinged with one side of the baffle plate (9) close to the side wall of the groove;
the use method of the movable combined tool specifically comprises the following steps:
step S1: drilling a threaded hole on the part (5) and installing a screw magnetic component;
step S2: clamping of the part (5) is achieved through a magnetic component of a magnetic adsorption screw, rough machining is conducted through aligning the first surface of the part (5) and establishing a rough machining reference, and first surface reference surfaces of the first surface in the x direction, the y direction and the z direction are milled in the rough machining process;
step S3: carrying out rough and fine machining on a second surface of the part (5), and milling reference surfaces of the second surface in the directions of x, y and z; the step S3 specifically includes the following steps:
step S31: dismantling the magnetic assembly of the screw and turning over the part (5);
step S32: placing the first surface on a positioning base (3), a vacuum adsorption base (4) and a flange strip pressing base (2), and matching a panel of the positioning base (3) with the z-direction reference surface milled in the step S2 to realize z-direction positioning;
step S33: starting a web plate of the vacuum adsorption base (4) supporting part (5), and screwing down the flange strip to press a special-shaped screw (10) of the base (2) to clamp the flange strip of the part (5);
step S34: starting the magnetic base (1), aligning the datum plane, establishing a machining coordinate system, performing rough machining and finish machining on the second surface of the part (5), and milling datum planes in the x, y and z directions;
step S4: turning over the part (5), clamping the part (5) according to the method shown in the step S3, and performing first-surface finish machining; the step S4 specifically includes the following steps:
step S41: placing the second surface of the part (5) on the positioning base (3) module, the vacuum adsorption base (4) and the edge strip pressing base (2), and matching the panel of the positioning base (3) with the z-direction reference surface milled in the step S2 to realize z-direction positioning;
step S42: starting a web plate of the vacuum adsorption base (4) supporting part (5), and screwing down the flange strip to press a special-shaped screw (10) of the base (2) to clamp the flange strip of the part (5);
step S43: starting the magnetic base (1), aligning the datum plane, establishing a machining coordinate system, performing finish machining on the first surface of the part (5), and milling datum planes in the x, y and z directions; and finishing the first surface processing.
2. The magnetic base-based mobile combined tool according to claim 1, characterized in that: the vacuum adsorption base (4) comprises a base B magnetically connected with the magnetic base (1), a vacuum cavity (6) installed on the base B and a sealing ring (7) installed on one side, far away from the base B, of the vacuum cavity (6), and an air suction hole (8) is formed in the vacuum cavity (6).
3. The magnetic base-based mobile combined tool according to claim 2, characterized in that: a spherical hinge is arranged on one side, close to the vacuum cavity (6), of the base B, and the vacuum cavity (6) is connected with the base B through the spherical hinge.
4. The magnetic base-based mobile combined tool according to claim 1, characterized in that: the positioning base (3) comprises a bottom plate magnetically connected with the magnetic base (1), a support column installed on the bottom plate and a panel far away from one side of the bottom plate with the support column, the parallelism of the bottom plate and the panel is less than 0.1mm, and the planeness of the bottom plate and the panel is less than 0.1mm respectively.
5. The magnetic base-based mobile combined tool according to claim 4, wherein: the screw magnetic assembly comprises a stop block (11) provided with a countersunk hole (13) and a screw (12) matched with the countersunk hole (13) for use, and the stop block (11) is magnetically connected with the magnetic base (1).
CN201811519087.8A 2018-12-12 2018-12-12 Mobile combined tool based on magnetic base and use method thereof Active CN109605072B (en)

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