CN114472969B - Drilling device for aerospace parts - Google Patents

Drilling device for aerospace parts Download PDF

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Publication number
CN114472969B
CN114472969B CN202210304087.6A CN202210304087A CN114472969B CN 114472969 B CN114472969 B CN 114472969B CN 202210304087 A CN202210304087 A CN 202210304087A CN 114472969 B CN114472969 B CN 114472969B
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China
Prior art keywords
plate
annular
ring
rod
clamping
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CN202210304087.6A
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CN114472969A (en
Inventor
卢永成
许明甫
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Suzhou Kaileite Precision Machinery Co ltd
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Suzhou Kaileite Precision Machinery Co ltd
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Publication of CN114472969A publication Critical patent/CN114472969A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The invention discloses a drilling device for aerospace parts, which comprises: a tank frame, the upper end of which is provided with a drilling component and a coolant injection component; the rotary adjusting device points forwards and backwards and is arranged at the axle center of the box frame; the concentric positioning device is coaxially arranged on the rotary adjusting device, and a cooling device is arranged on the box frame close to the bottom cambered surface of the concentric positioning device; an auxiliary bearing orifice plate of a round hole cavity is arranged at the axis, and a clamping and sealing device which is pushed and pressed in the radial direction is arranged at the end plates at the four outer corners of the auxiliary bearing orifice plate; and the collecting box is arranged at the bottom of the box frame and is communicated with the coolant injection assembly pipeline.

Description

Drilling device for aerospace parts
Technical Field
The invention relates to the technical field of aerospace drilling, in particular to a drilling device for aerospace parts.
Background
Aerospace requires numerous components, with relatively many arcuate and annular housing components being required. Most of the existing drilling devices are used for plane drilling, and arc-shaped or annular shell parts for aerospace are difficult to accurately match and fix in the process of fixing and clamping the shell parts, the steps are complex, the cooling effect of a drill bit and a local area where parts are located is poor in the drilling process, the drilling accuracy is further reduced, and the formed hole diameter error is large.
Accordingly, one skilled in the art provides a drilling apparatus for aerospace parts to address the problems set forth in the background above.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a drilling device for aerospace parts, comprising:
a tank frame, the upper end of which is provided with a drilling component and a coolant injection component;
the rotary adjusting device points forwards and backwards and is arranged at the axle center of the box frame;
the concentric positioning device is coaxially arranged on the rotary adjusting device, and a cooling device is arranged on the box frame close to the bottom cambered surface of the concentric positioning device;
an auxiliary bearing orifice plate of a round hole cavity is arranged at the axis, and a clamping and sealing device which is pushed and pressed in the radial direction is arranged at the end plates at the four outer corners of the auxiliary bearing orifice plate; and
and the collecting box is arranged at the bottom of the box frame and is communicated with the coolant injection assembly pipeline.
As a preferable technical solution of the present invention, the rotary adjusting device includes:
a rotating wheel, the shaft of which is provided with a screw;
at least two groups of guide rods are arranged and are vertically and fixedly arranged with the rotating wheel;
the fixed plate sleeves are respectively sleeved on the guide rods in a sliding connection mode and the lead screws in a meshing connection mode, and the fixed plate sleeves are provided with supporting radial rods which are arranged in a circumferential mode.
As a preferred aspect of the present invention, the concentric positioning apparatus includes:
the outer ring wall of the inner ring plate is respectively provided with a first coaxial and symmetrical annular sliding groove and a clamping hole corresponding to the supporting radial rod, a positioning jacking component arranged on the supporting radial rod is embedded in the clamping hole, and an inner plug flow component with an annular structure is arranged on the outer ring wall of the inner ring plate;
two groups of outer ring plates which are coaxially arranged and provided with a reserved annular cavity seam are respectively provided with a second annular sliding groove corresponding to the first annular sliding groove and a clamping groove corresponding to the clamping hole, an elastic pressure spring seat is embedded in the clamping groove, an annular clamping column is protruded on the outer ring wall of the outer ring plate, and an outer plug-flow component with an annular structure is arranged on the inner ring wall of the outer ring plate;
the side ring plates are arranged into two groups, sealing ring blocks which are in fit sealing with the first annular sliding groove and the second annular sliding groove are respectively arranged on the inner and outer diameter ring surfaces of the side ring plates, and sealing gaskets are also attached to the outer ring walls of the sealing ring blocks.
As a preferred technical solution of the present invention, the positioning and pressing assembly includes:
a square cylindrical cavity is formed in an output shaft of a pushing rod II, the bottom of the pushing rod II is coaxially fixed with the supporting diameter rod, the top of the pushing rod II is hermetically fixed with the clamping hole through a sealing gasket plug, and a pressure sensing seat is coaxially installed at the output end part of the pushing rod II;
the T-shaped top frame comprises a square shaft sliding rod connected with the cylindrical cavity in a sliding mode and a top pressure rod perpendicular to the square shaft sliding rod, and anti-skidding adhesive pads are mounted at two ends of the top pressure rod;
and the sensing pressure spring is sleeved outside the square shaft sliding rod, and the upper end and the lower end of the sensing pressure spring are respectively connected with the top pressure rod and the pressure sensing seat.
As a preferred technical solution of the present invention, the inward-pushing flow assembly includes:
the inner ring plate is coaxially and rotatably connected with the inner ring plate, and inner push plates which are circumferentially arranged are arranged on the surface of the outer ring plate;
and the inner driving gear is arranged on the side annular plate and is meshed and connected with an outer rack ring on the inner gear annular plate positioned on one side of the inner push plate.
As a preferred aspect of the present invention, the outer plug assembly includes:
the outer gear ring plate is coaxially and rotatably connected with the outer ring plate, and the surface of the inner ring plate is provided with outer push plates which are arranged in a circumferential manner;
and the outer driving gear is arranged on the side annular plate and is meshed and connected with the inner rack ring on the outer gear annular plate positioned on one side of the outer push plate.
As a preferred technical scheme of the invention, the outer ring plate close to the drill bit in the drilling assembly is provided with the magnetic absorption and collection sheet.
As a preferred aspect of the present invention, the clamping and sealing device includes:
the pushing rods I are obliquely arranged on the auxiliary bearing orifice plate and are arranged in a square shape, four groups of pushing rods I are arranged, a guide rail frame plate is fixed at the output end of the pushing rods I, two groups of symmetrical driving seat frames are arranged on the guide rail frame plate, and tensioning rods are hinged to the driving seat frames;
the upper end part and the lower end part of the elastic arc pressing plate are respectively hinged with the outer end parts of the upper tensioning rod and the lower tensioning rod, and the elastic arc pressing plate is provided with a plurality of groups of auxiliary pressing rollers which can rotate freely and are arranged in an arc shape;
the transverse guide rails are transversely arranged on the auxiliary bearing hole plate and are symmetrically arranged in two groups from left to right, transverse moving seats are arranged on the transverse guide rails, and winding shafts are arranged on the transverse moving seats;
the winding connection is carried out on the outer portion of the winding shaft on the left side and the outer portion of the winding shaft on the right side, the winding shaft is located on the inner side of the auxiliary pressing roller and used for sealing a sealing belt of an annular cavity seam, and an annular clamping groove matched with the annular clamping column in clamping and sealing mode is formed in the annular surface of the inner side of the sealing belt.
Compared with the prior art, the invention provides a drilling device for aerospace parts, which has the following beneficial effects:
according to the invention, the parts are transmitted in and out through the rotary adjusting device, the parts are rotationally positioned through the concentric positioning device, and the parts are transmitted back and forth, so that the continuity of the parts to be drilled and the parts drilled is improved, and the drilling efficiency is improved.
Drawings
FIG. 1 is a schematic view of the construction of the drilling apparatus of the present invention;
FIG. 2 is an enlarged view of a portion of the clamping and sealing device of the present invention;
FIG. 3 is an enlarged view of the structure of the rotational adjustment device and the concentric positioning device of the present invention;
FIG. 4 isbase:Sub>A schematic view ofbase:Sub>A partial structure A-A of the present invention;
FIG. 5 is an enlarged view of the partial structure of A-A of the present invention;
FIG. 6 is an enlarged view of a portion of the concentric positioning device of the present invention;
in the figure: 1. a box frame; 2. a drilling assembly; 3. a coolant injection assembly; 4. auxiliary bearing hole plates; 5. clamping the sealing device; 6. a rotary adjusting device; 7. a concentric positioning device; 8. a collection box; 9. a cooling device; 10. a magnetic attraction collection sheet; 51. a first pushing rod; 52. a rail frame plate; 53. a drive mount; 54. a tension rod; 55. an elastic arc pressing plate; 56. auxiliary compression rollers; 57. a transverse guide rail; 58. a traversing seat; 59. sealing tape; 61. a rotating wheel; 62. a lead screw; 63. a guide bar; 64. fixing a plate sleeve; 65. a support diameter rod; 71. an inner ring plate; 72. an outer ring plate; 73. a side ring plate; 74. a sealing gasket; 75. an annular clamp column; 76. positioning the jacking component; 77. an inner plug flow assembly; 78. an outer plug flow component; 711. a first annular chute; 712. a clamping hole; 721. a second annular chute; 722. a card slot; 723. an elastic compression spring seat; 731. a seal ring block; 761. a second pushing rod; 762. a pressure-sensitive base; 763. a T-shaped top frame; 764. a sensing pressure spring; 765. an anti-slip patch; 771. an inner gear ring plate; 772. an inner push plate; 773. an inner drive gear; 781. an outer gear ring plate; 782. an outer pushing plate; 783. an external drive gear.
Detailed Description
Referring to fig. 1-6, the present invention provides a technical solution: a drilling device for aerospace parts comprising:
a box frame 1, the upper end of which is provided with a drilling component 2 and a coolant injection component 3;
the rotary adjusting device 6 points forwards and backwards and is arranged at the axis of the box frame 1 and is used for transferring parts in and out;
the concentric positioning device 7 is coaxially arranged on the rotary adjusting device 6 and used for rotationally positioning the parts, and a cooling device 9 is arranged on the box frame 1 close to the bottom cambered surface of the concentric positioning device 7;
an auxiliary bearing orifice plate 4 with a round hole cavity is arranged at the axis, and a clamping and sealing device 5 which is pushed and pressed in the radial direction is arranged at the end plate of the outer four corners of the auxiliary bearing orifice plate; and
the collecting box 8 is arranged at the bottom of the box frame 1, is used for recovering the coolant, is communicated with the coolant injection assembly 3 through a pipeline, and can actively guide the coolant in the collecting box into the coolant injection assembly in a circulating manner through an oil pump;
as a better embodiment, the concentric positioning devices are arranged in parallel in front and back, so that the continuity of the alternating operation of the parts to be drilled and the parts drilled is improved, and the drilling efficiency is improved.
In this embodiment, the rotary adjusting device 6 includes:
a rotor 61 having a screw 62 attached to a shaft thereof;
at least two groups of guide rods 63 are arranged and are vertically and fixedly arranged with the rotating wheel 61;
the fixed plate sleeves 64 are respectively sleeved on the guide rods and are in sliding connection with the guide rods and the lead screws 62 and are in meshed connection with the guide rods, and the fixed plate sleeves 64 are provided with supporting radial rods 65 which are arranged in a circumferential manner;
the part is conveyed in and out through the front and back movement of the screw rod regulation and control fixed plate sleeve, the rotation of the fixed plate sleeve is regulated and controlled in an intermittent mode through the rotating wheel, a required drilling surface in the part is enabled to rotate in sequence and is regulated to the position below the drilling assembly for drilling, and the drilling positioning efficiency, the drilling precision and the dismounting and mounting efficiency are greatly improved.
In this embodiment, the concentric positioning device 7 includes:
the outer ring wall of the inner ring plate 71 is respectively provided with a first coaxial and symmetrical annular sliding groove 711 and a clamping hole 712 corresponding to the support diameter rod 65, a positioning jacking component 76 arranged on the support diameter rod 65 is embedded in the clamping hole 712, an inner plug flow component 77 with an annular structure is arranged on the outer ring wall of the inner ring plate 71, the coolant between the part and the inner ring plate is circularly and rotationally pushed to flow through the inner plug flow component, and concentric regulation and control of the part and the inner ring plate are completed through the positioning jacking component;
two sets of outer ring plates 72 which are coaxially arranged and provided with a reserved annular cavity seam are arranged, an annular sliding groove II 721 corresponding to the annular sliding groove I711 and a clamping groove 722 corresponding to the clamping hole 712 are respectively formed in the inner annular wall of each outer ring plate 72, an elastic pressure spring seat 723 is embedded in each clamping groove 722, an annular clamping column 75 is protruded on the outer annular wall of each outer ring plate 72, an outer plug flow assembly 78 of an annular structure is installed on the inner annular wall of each outer ring plate 72, the coolant between the part and each outer ring plate is circularly rotated and pushed to flow through the outer plug flow assembly, and the elastic pressure spring seats are used for assisting in positioning and jacking the part to clamp and fix the part;
the side ring plates 73 are arranged into two groups, sealing ring blocks 731 which are attached and sealed with the first annular sliding groove 711 and the second annular sliding groove 721 are respectively arranged on the inner and outer diameter ring surfaces of the side ring plates 73, sealing gaskets 74 are further attached to the outer ring walls of the sealing ring blocks 731, and the parts with different axial lengths can be further adapted by regulating and controlling the distance between the side ring plates.
In this embodiment, the positioning pressing assembly 76 includes:
a square cylindrical cavity is formed in an output shaft of the second push rod 761, the bottom of the second push rod is coaxially fixed with the support radial rod 65, and the top of the second push rod 761 is hermetically fixed with the clamping hole 712 through a sealing gasket, and a pressure sensing seat 762 is coaxially installed at the output end of the second push rod;
the T-shaped top frame 763 comprises a square shaft sliding rod connected with the cylindrical cavity in a sliding mode and a top pressing rod perpendicular to the square shaft sliding rod, and anti-skidding sticking pads 765 are mounted at two ends of the top pressing rod, so that the situation that parts slide and loosen is avoided;
the sensing pressure spring 764 is sleeved outside the square shaft slide rod, the upper end and the lower end of the sensing pressure spring are respectively connected with the top pressure rod and the pressure sensing seat 762, the direct compression of the T-shaped top frame by the part is transmitted to the direct compression of the sensing pressure spring on the pressure sensing seat, so that the pressure intensity of each group of T-shaped top frames is obtained, whether all pressure monitoring data values which are in contact with the part and generated are consistent or not is compared, if the pressure monitoring data values are inconsistent, the regulation and control are performed through the second pushing and pressing rod, meanwhile, the consistency of the data values is automatically compared in real time, until the data are consistent through the regulation and control, so that the part and the inner annular plate are in a concentric state, and further, the drilling surface required by the part is in positive correspondence with the drilling assembly.
In this embodiment, the inner plug flow component 77 includes:
an inner annular ring plate 771 coaxially and rotatably connected with the inner annular plate 71, wherein inner push plates 772 are arranged on the surface of an outer annular plate in a circumferential arrangement;
an inner driving gear 773 is installed on the side ring plate 73 and is engaged with the outer rack ring on the inner gear ring plate 771 on the side of the inner push plate 772.
In this embodiment, the outer plug assembly 78 includes:
an outer gear ring plate 781 coaxially and rotatably connected with the outer ring plate 72, wherein the inner ring plate surface is provided with outer push plates 782 arranged in a circumferential arrangement;
an outer driving gear 783 arranged on the side annular plate 73 and meshed and connected with an inner rack ring on an outer annular plate 781 positioned on one side of the outer push plate 772;
as a preferred embodiment, the rotating speed of the external driving gear is less than that of the internal driving gear, and the external driving gear rotates in the same direction, so that the circulating flow rate of the coolant at the outer ring of the part is less than that of the coolant at the inner ring, the coolant at the outer ring can flow into the coolant at the inner ring through the drilled drill holes by the coolant at the inner ring to perform mixed heat exchange, the exchange amount is in direct proportion to the number of the drill holes as the number of the drill holes is increased, and the cooling effect and the cooling efficiency in the drilling process are improved under the environment of controllable coolant amount.
In this embodiment, be close to and install magnetism on the outer crown plate 72 of drill bit department in drilling subassembly 2 and inhale piece 10 to install with detachable mode, thereby in time produce the silk material with drilling and adsorb, and then avoid flowing into in the coolant, thereby maintain the pure degree of coolant, and can also avoid the silk material entering drilling that produces to drill in, cause the secondary scratch of drilling inner wall.
In this embodiment, the clamping and sealing device 5 includes:
the push rods 51 are obliquely arranged on the auxiliary bearing orifice plate 4 and are arranged in a square shape, four groups of push rods are arranged, the output end of the push rods 51 is fixed with a guide rail frame plate 52, two groups of symmetrical driving seat frames 53 are arranged on the guide rail frame plate 52, and the driving seat frames 53 are hinged with tension rods 54;
the upper end and the lower end of the elastic arc pressing plate 55 are respectively hinged with the outer ends of the upper tensioning rod 54 and the lower tensioning rod 54, and a plurality of groups of auxiliary pressing rollers 56 which can rotate freely and are arranged in an arc shape are arranged on the elastic arc pressing plate 55;
the transverse guide rails 57 are transversely arranged on the auxiliary bearing orifice plate 4 and are symmetrically arranged in two groups from left to right, transverse moving seats 58 are arranged on the transverse guide rails 57, and winding shafts are arranged on the transverse moving seats 58;
the sealing band 59 is wound on the outer portion of the winding shaft on the left side and the outer portion of the winding shaft on the right side, located on the inner side of the auxiliary pressing roller 56 and used for sealing the annular cavity seam, an annular clamping groove matched with the annular clamping column 75 in a clamping and sealing mode is formed in the annular surface of the inner side of the sealing band 59, the annular cavity seam is attached and sealed through the sealing band, and therefore the outer ring plate is enabled to be in a sealing structure except for a local area of the drilling assembly.
In particular implementation, the method comprises the following steps:
s1: the axial length of the part is increased, the optimal sealing and fixing position of the side annular plate is selected, a plurality of groups of concentric positioning devices are arranged in a front-back arrangement mode, and the part is sequentially arranged in the concentric positioning devices;
s2: when the installation of a group of parts is not finished, the corresponding concentric positioning device is directly started to automatically finish the axis positioning of the parts, after the completion, the circular angle is obtained according to the position of the adjacent required drilling hole, the circular angle is fed back to the rotating wheel to regulate and control the angle of the rotating angle each time, and the circular angle is fed back to the clamping sealing device to finish the annular cavity seam;
s3: after the concentric positioning device, the clamping and sealing device and the rotating wheel are regulated and controlled in the S2, the coolant is injected into the upper cavity and the lower cavity of the part through the coolant injection assembly, the inner plug assembly, the outer plug assembly and the drilling assembly are started to drill, the rotating wheel performs intermittent rotation angle control, a flowing process is formed, and therefore the time utilization rate in the drilling process is improved, and the drilling efficiency is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept within the technical scope of the present invention, and the technical solution and the inventive concept thereof should be covered by the scope of the present invention.

Claims (3)

1. A drilling equipment for space flight and aviation part which characterized in that: it includes:
the box frame (1) is provided with a drilling assembly (2) and a coolant injection assembly (3) at the upper end part;
the rotary adjusting device (6) points forwards and backwards and is arranged at the axis of the box frame (1);
a concentric positioning device (7) coaxially mounted on the rotary adjusting device (6), and a cooling device (9) is mounted on the box frame (1) close to the bottom cambered surface of the concentric positioning device (7);
an auxiliary bearing orifice plate (4) with a round hole cavity is arranged at the axis, and clamping and sealing devices (5) which are pushed and pressed in the radial direction are arranged at the end plates at the four outer corners of the auxiliary bearing orifice plate; and
the collecting box (8) is arranged at the bottom of the box frame (1) and is communicated with the coolant injection assembly (3) through a pipeline;
the rotary adjusting device (6) comprises: a rotating wheel (61) with a shaft portion to which a screw (62) is attached;
at least two groups of guide rods (63) are arranged and are fixedly arranged in the vertical direction with the rotating wheel (61);
the fixed plate sleeves (64) are respectively sleeved on the guide rods and are in sliding connection with the guide rods and the screw rods (62) in meshed connection with the guide rods, and the fixed plate sleeves (64) are provided with supporting radial rods (65) which are arranged in a circumferential manner;
the concentric positioning device (7) comprises: the outer ring wall of the inner ring plate (71) is respectively provided with a first coaxial and symmetrical annular sliding groove (711) and a clamping hole (712) corresponding to the supporting radial rod (65), a positioning jacking assembly (76) arranged on the supporting radial rod (65) is embedded in the clamping hole (712), and an inner plug flow assembly (77) with an annular structure is arranged on the outer ring wall of the inner ring plate (71);
two groups of outer ring plates (72) which are coaxially arranged and provided with annular cavity seams in advance are arranged, annular sliding grooves II (721) corresponding to the annular sliding grooves I (711) and clamping grooves (722) corresponding to the clamping holes (712) are respectively formed in the inner ring walls of the outer ring plates (72), elastic pressure spring seats (723) are embedded in the clamping grooves (722), annular clamping columns (75) protrude from the outer ring walls of the outer ring plates (72), and outer plug-flow assemblies (78) of annular structures are mounted on the inner ring walls of the outer ring plates (72);
the side ring plates (73) are arranged into two groups, sealing ring blocks (731) which are attached and sealed with the annular sliding groove I (711) and the annular sliding groove II (721) are respectively arranged on the inner and outer diameter ring surfaces of the side ring plates (73), and sealing gaskets (74) are attached to the outer ring wall of each sealing ring block (731);
the clamping and sealing device (5) comprises: the pushing rods (51) are obliquely arranged on the auxiliary bearing orifice plate (4) and are arranged in a square shape, four groups of pushing rods (51) are arranged, the output end of each pushing rod is fixedly provided with a guide rail frame plate (52), two groups of symmetrical driving seat frames (53) are arranged on the guide rail frame plates (52), and tension rods (54) are hinged to the driving seat frames (53);
the upper end part and the lower end part of the elastic arc pressing plate (55) are respectively hinged with the outer end parts of the upper tensioning rod and the lower tensioning rod (54), and a plurality of groups of auxiliary pressing rollers (56) which can rotate freely and are arranged in an arc shape are arranged on the elastic arc pressing plate (55);
the transverse guide rails (57) are transversely arranged on the auxiliary bearing hole plate (4) and are symmetrically arranged in two groups left and right, a transverse moving seat (58) is arranged on each transverse guide rail (57), and a winding shaft is arranged on each transverse moving seat (58);
the sealing strip (59) is wound on the outer portions of the left and right winding reels and positioned on the inner sides of the auxiliary pressing rollers (56) and used for sealing the annular cavity seam, and an annular clamping groove matched with the annular clamping column (75) for clamping and sealing is formed in the annular surface on the inner side of the sealing strip (59);
the inner plug flow assembly (77) comprises:
an inner gear ring plate (771) which is coaxially and rotatably connected with the inner ring plate (71), wherein inner push plates (772) which are circumferentially arranged are arranged on the surface of an outer ring plate of the inner gear ring plate;
the inner driving gear (773) is installed on the side annular plate (73) and is meshed and connected with the outer rack ring on the inner gear annular plate (771) on one side of the inner push plate (772);
the outer plug assembly (78) includes:
an outer gear ring plate (781) which is coaxially and rotationally connected with the outer ring plate (72), wherein the surface of an inner ring plate is provided with outer push plates (782) which are arranged in a circumferential arrangement;
and the outer driving gear (783) is installed on the side annular plate (73) and is meshed and connected with the inner rack ring on the outer gear annular plate (781) on one side of the outer push plate (782).
2. A drilling device for aerospace parts according to claim 1, wherein: the positioning and jacking assembly (76) comprises:
a square column cavity is formed in an output shaft of a second push rod (761) of which the bottom is coaxially fixed with the support radial rod (65) and the top is hermetically fixed with the clamping hole (712) through a sealing gasket plug, and a pressure sensing seat (762) is coaxially installed at the output end of the second push rod;
the T-shaped top frame (763) comprises a square shaft sliding rod connected with the cylindrical cavity in a sliding mode and a top pressure rod perpendicular to the square shaft sliding rod, and anti-skidding sticking pads (765) are mounted at two ends of the top pressure rod;
and the sensing pressure spring (764) is sleeved outside the square shaft sliding rod, and the upper end and the lower end of the sensing pressure spring are respectively connected with the top pressure rod and the pressure sensing seat (762).
3. A drilling device for aerospace parts according to claim 1 wherein: the outer ring plate (72) close to the drill bit in the drilling assembly (2) is provided with a magnetic absorption and collection sheet (10).
CN202210304087.6A 2022-03-25 2022-03-25 Drilling device for aerospace parts Active CN114472969B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210304087.6A CN114472969B (en) 2022-03-25 2022-03-25 Drilling device for aerospace parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210304087.6A CN114472969B (en) 2022-03-25 2022-03-25 Drilling device for aerospace parts

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CN114472969A CN114472969A (en) 2022-05-13
CN114472969B true CN114472969B (en) 2023-04-18

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