CN111230984B - Adjustable multi-hole-site composite material curved surface drilling fixture device - Google Patents
Adjustable multi-hole-site composite material curved surface drilling fixture device Download PDFInfo
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- CN111230984B CN111230984B CN202010188304.0A CN202010188304A CN111230984B CN 111230984 B CN111230984 B CN 111230984B CN 202010188304 A CN202010188304 A CN 202010188304A CN 111230984 B CN111230984 B CN 111230984B
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- pressing plate
- pressing
- base
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- 238000005553 drilling Methods 0.000 title claims abstract description 57
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 110
- 230000007246 mechanism Effects 0.000 claims abstract description 86
- 230000003044 adaptive effect Effects 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000741 silica gel Substances 0.000 claims description 16
- 229910002027 silica gel Inorganic materials 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 5
- 229910052755 nonmetal Inorganic materials 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
- B26D7/04—Means for holding or positioning work with clamping means providing adjustable clamping pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses an adjustable porous composite material curved surface drilling fixture device, which comprises a base, a self-adaptive supporting mechanism and a pressing mechanism, wherein the self-adaptive supporting mechanism is connected to the base in a matching way; the fixture has reliable structure and good usability, and the movable drill bushing mechanism is used for adjusting the position of the drill bushing seat and replacing drill bushings with different inner hole sizes to meet the drilling requirements of different apertures; the self-adaptive adjustment is realized on the curved surfaces of the composite materials with different curvatures, different apertures and different pitch requirements, the drilling layering damage to the composite material component is reduced to the minimum extent, the drilling quality is ensured, and the drilling effect is good.
Description
Technical Field
The invention relates to the technical field of drilling equipment, in particular to fiber reinforced resin matrix composite drilling equipment, and specifically relates to an adjustable porous composite curved surface drilling fixture device.
Background
The fiber reinforced resin matrix composite has the characteristics of high specific strength and large specific modulus, and is widely applied to various fields such as automobiles, aerospace, sports and the like. For example, the carbon fiber epoxy resin-based composite material has the specific strength and the specific modulus which are several times greater than those of steel and aluminum alloy, and also has excellent chemical stability, antifriction and wear resistance, self-lubrication, heat resistance, fatigue resistance, creep resistance, noise elimination, electric insulation and other performances. However, due to the anisotropic characteristic and low interlayer strength, the delamination defect in the conventional drilling process has a great influence on the application of the composite material.
Disclosure of Invention
The invention aims to provide an adjustable multi-hole-site composite curved surface drilling fixture device, which is used for solving the problems of layering defects and poor drilling quality in the conventional resin-based composite drilling process.
The technical scheme for solving the technical problems is as follows: the adjustable multi-hole site composite material curved surface drilling fixture device comprises a base, a self-adaptive supporting mechanism and a pressing mechanism, wherein the self-adaptive supporting mechanism is connected to the base in a matched mode, the pressing mechanism is positioned above the self-adaptive supporting mechanism, and the pressing mechanism corresponds to the self-adaptive supporting mechanism;
The pressing mechanism comprises a multi-layer curved surface base plate positioned above the self-adaptive supporting mechanism, a pressing plate assembly arranged above the multi-layer curved surface base plate and a pressing plate frame transversely penetrating through the pressing plate assembly, and two ends of the pressing plate assembly are respectively connected with the multi-layer curved surface base plate through positioning pieces.
Further, the fixture device further comprises lifting adjusting mechanisms arranged at two ends of the base and a movable drill bushing mechanism connected to the pressing mechanism in a matched mode, the pressing plate assembly is provided with a mounting groove, and the movable drill bushing mechanism is located in the mounting groove and connected to the pressing plate frame in a matched mode.
Further, the lifting adjusting mechanism comprises an upright post arranged on the base, an adjusting piece arranged on the base and located in the upright post, a screw rod matched and connected with the adjusting piece and a sliding piece located in the upright post and slidably connected with the screw rod, wherein the top end of the screw rod penetrates through the upright post and is connected with a driving hand wheel, and a clamping groove matched and connected with the pressing plate frame is formed in the sliding piece.
Further, the regulating part comprises a chassis arranged on the base, a cylindrical shell arranged on the chassis and internally provided with a cavity, a cover body arranged at the upper end of the cylindrical shell and a bearing arranged in the cavity of the cylindrical shell, a through hole communicated with the cavity inside the cylindrical shell is formed in the top end of the cover body, and the bottom end of the screw rod penetrates through the through hole and is connected with the bearing in a matched mode.
Further, the multilayer curved surface base plate comprises a curved surface silica gel protection pad arranged below the pressing plate assembly, a curved surface self-adaptive convex seat which is connected above the self-adaptive supporting mechanism in a matching way, and a curved surface drilling nonmetal base plate arranged between the curved surface silica gel protection pad and the curved surface self-adaptive convex seat;
The locating piece vertically penetrates through the curved surface silica gel protection pad, the curved surface drilling nonmetallic backing plate and the curved surface self-adaptive convex seat respectively, and a curved surface convex column matched with the self-adaptive supporting mechanism is arranged on the curved surface self-adaptive convex seat.
Further, the pressing plate assembly comprises an upper pressing plate and a lower pressing plate arranged below the upper pressing plate, the lower surface of the lower pressing plate is of a curved surface structure, and the lower surface of the lower pressing plate is clung to the upper surface of the curved surface silica gel protection pad;
The mounting groove is respectively arranged on the upper pressing plate and the lower pressing plate, the two ends of the mounting groove of the upper pressing plate are respectively provided with an upper rail groove, the two ends of the mounting groove of the lower pressing plate are respectively provided with a lower rail groove, the upper rail groove and the lower rail groove are matched to form a guide groove hole for the pressing plate frame to penetrate, the movable drill bushing mechanism is positioned in the mounting groove and is matched and connected with the pressing plate frame, and the upper pressing plate is provided with scale marks.
Further, the holding down plate is including the flat pressure portion of seting up the mounting groove and incline the pressure portion that inclines to set up respectively in flat pressure portion both sides, and the slope of inclined pressure portion suits with the camber of curved surface structure.
Further, the movable drill bushing mechanism comprises a plurality of drill bushing seats which are arranged in the mounting groove and are connected to the pressure plate frame in a sliding mode, a drill bushing which is connected to the drill bushing seats in a matched mode, and a disc-shaped screw rod which is arranged on the drill bushing seats and used for fixing the positions of the drill bushing seats.
The drill bushing seat comprises a seat body and wing plates respectively arranged at two ends of the seat body, a chute which is in sliding fit with the pressing plate frame is formed between the wing plates and the seat body, a drill bushing placing area is formed between the two wing plates, and a pressing piece and a vertical duct for mounting a drill bushing are respectively arranged on the seat body in the drill bushing placing area.
Further, the drill bushing comprises a bushing body which is of a hollow structure and is connected in the vertical pore canal in a matching way, and a bushing head which is arranged at the upper end of the bushing body, wherein the bushing body and the bushing head are of a cylindrical structure, and the diameter of the bushing head is larger than that of the bushing body;
The outer wall of the sleeve head is provided with at least two flat tangential surfaces, a bulge is arranged on any flat tangential surface, and the pressing piece is pressed on the bulge.
Further, the self-adaptive supporting mechanism comprises a curved surface self-adaptive recess which is connected to the base in a sliding way and provided with a curved surface groove, and a supporting spring group which is vertically arranged on the side surface of the curved surface self-adaptive recess, wherein the curved surface groove of the curved surface self-adaptive recess is matched with the curved surface convex column of the curved surface self-adaptive convex seat;
T-shaped guide rails are respectively arranged on two sides of the bottom end of the curved surface self-adaptive recess, and are matched with T-shaped grooves formed in two sides of the base.
The invention has the following beneficial effects: the adjustable multi-hole site composite material curved surface drilling fixture device provided by the invention has the advantages that the fixture structure is reliable, the service performance is good, the fiber reinforced resin matrix composite material component can be reliably drilled, the position of the drill sleeve seat is adjusted by utilizing the movable drill sleeve mechanism, and drill sleeves with different inner hole sizes are replaced to adapt to the drilling requirements of different holes; the multi-layer curved surface backing plate in the pressing mechanism, the pressing plate component and the curved surface self-adaptive recess in the self-adaptive supporting mechanism are matched to realize self-adaptive adjustment on the curved surfaces of the composite materials with different curvatures, different apertures and different hole distances, so that the multi-layer curved surface self-adaptive drilling machine is suitable for multi-curved surface change of the composite material plate, meets the drilling operation of different composite curved surface materials, reduces the drilling layering damage on the composite material component to the minimum extent, ensures the drilling quality and has good drilling effect; through the peculiar structure of lift adjustment mechanism, the effectual installation that satisfies the composite material component of different plate thickness, and guaranteed that the drilling in-process can not influence lift adjustment performance because of the miscellaneous bits that drilling produced, it is reliable to use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a schematic view of the upper platen structure of the present invention;
FIG. 6 is a schematic view of the structure of the lower platen of the present invention;
FIG. 7 is a schematic view of the structure of the drill bushing seat according to the present invention;
FIG. 8 is a schematic view of the drill bushing structure of the present invention;
FIG. 9 is a schematic view of a curved adaptive recess structure according to the present invention;
The reference numerals shown in fig. 1 to 9 are respectively expressed as: 1-base, 2-lifting adjusting mechanism, 3-self-adaptive supporting mechanism, 4-pressing mechanism, 5-movable drill bushing mechanism, 40-multilayer curved surface base plate, 41-pressing plate component, 42-pressing plate frame, 43-mounting groove, 20-upright post, 21-adjusting piece, 22-screw rod, 23-sliding piece, 24-driving hand wheel, 25-clamping groove, 210-base plate, 211-cylindrical shell, 212-cover body, 213-bearing, 41-pressing plate component, 401-curved surface silica gel protection pad, 402-curved surface self-adaptive convex seat, 403-curved surface drilling nonmetallic base plate, 404-curved convex columns, 410-upper pressing plates, 411-lower pressing plates, 412-upper rail grooves, 413-lower rail grooves, 414-flat pressing parts, 415-inclined pressing parts, 50-drill bushing seats, 51-drill bushings, 52-dish-shaped screws, 501-seat bodies, 502-wing plates, 503-sliding grooves, 504-drill bushing placement areas, 505-pressing pieces, 506-vertical pore passages, 510-sleeve bodies, 511-sleeve heads, 512-flat sections, 513-protrusions, 30-curved surface grooves, 31-curved surface self-adapting concave seats, 32-supporting spring groups, 33-T-shaped guide rails and 34-T-shaped grooves.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 to 4, the adjustable multi-hole-site composite curved surface drilling fixture device comprises a base 1, lifting adjusting mechanisms 2 respectively arranged at two ends of the base 1, an adaptive supporting mechanism 3 which is connected to the base 1 in a matched manner and is positioned between the two lifting adjusting mechanisms 2, a pressing mechanism 4 which is positioned above the adaptive supporting mechanism 3 and is connected between the two lifting adjusting mechanisms 2, and a movable drill bushing mechanism 5 which is connected to the pressing mechanism 4 in a matched manner, wherein the pressing mechanism 4 corresponds to the adaptive supporting mechanism 3. The base 1 provides reliable support for the whole device and is reliable in structure.
The two lifting adjusting mechanisms 2 are symmetrically arranged about the center of the base 1, and the lifting adjusting mechanisms 2 are used for adjusting the pressing mechanism 4 in the height direction, so that curved surface material components with different plate thicknesses are installed and placed in the using process, and the reliability of drilling is guaranteed. The compression mechanism 4 provides an adaptive compression force, and the compression effect is improved according to the adjustment of the composite material plates with different curved surfaces. The support mechanism 3 provides adaptable support, is suitable for multi-curved surface change of the material plate within a certain range, realizes adaptive adjustment on the composite material curved surface with different curvatures, different apertures and different hole pitches, is suitable for multi-curved surface change of the composite material plate, meets drilling operation of different composite curved surface materials, reduces drilling layering damage of the composite material member to the minimum degree, ensures drilling quality and has good drilling effect. The movable drill bushing mechanism 5 is used for carrying out auxiliary drilling operation on the composite material plate, and when drilling, the composite material plates with different apertures and different hole pitches are subjected to drilling operation according to actual needs through adjustment of the movable drill bushing mechanism 5, so that the drilling operation is reliable and convenient.
The pressing mechanism 4 comprises a multi-layer curved surface base plate 40 positioned above the self-adaptive supporting mechanism 3, a pressing plate assembly 41 arranged above the multi-layer curved surface base plate 40 and a pressing plate frame 42 transversely penetrating through the pressing plate assembly 41 and connected between the two lifting adjusting mechanisms 2, positioning pieces 43 are respectively arranged at two ends of the pressing plate assembly 41, the positioning pieces 43 penetrate through the pressing plate assembly 41 and extend into the multi-layer curved surface base plate 40, mounting grooves 44 are formed in the pressing plate assembly 41, and the movable drill bushing mechanism 5 is positioned in the mounting grooves 44 and is connected to the pressing plate frame 42 in a matched mode. The multi-layer curved surface base plate 40 and the self-adaptive supporting mechanism 3 cooperate to realize self-adaptive adjustment of the curved surface composite material plate, the pressing plate component 41 is used as a pressure driving piece to press the multi-layer curved surface base plate 40, and in the process, the multi-layer curved surface base plate 40 is subjected to self-adaptive change on the composite material plates with different curvatures, so that the multi-layer curved surface base plate 40 can be clung to the composite material plates to realize reliable compaction. The platen frame 42 is used as a connecting piece for connecting the platen assembly 41 and the lifting adjusting mechanism 2, and is formed by two mutually parallel plates, so that a double connecting structural member is formed, the structural strength and the reliability are ensured, and the stability of the lifting mechanism for driving the platen assembly 41 to move up and down is improved. Preferably, the positioning piece 43 adopts a positioning pin, and the positioning is reliable and the operation is convenient.
The lifting adjusting mechanism 2 comprises an upright post 20 arranged on the base 1, an adjusting piece 21 arranged on the base 1 and positioned in the upright post 20, a screw rod 22 matched and connected with the adjusting piece 21, and a sliding piece 23 positioned in the upright post 20 and slidably connected with the screw rod 22, wherein the top end of the screw rod 22 penetrates through the upright post 20 and is connected with a driving hand wheel 24, and a clamping groove 25 matched and connected with a pressing plate frame 42 is formed in the sliding piece 23. The stand 20 is U-shaped structure, is connected to the base 1 through bolts, and is convenient to properly adjust the position of the stand 20 according to actual use needs, thereby being convenient and reliable. The hand wheel and the screw rod 22 are matched to form an active transmission structure, and the bottom end of the screw rod 22 is matched with the adjusting piece 21 to realize rotation, so that the reliability of transmission is ensured. The sliding piece 23 is used as a passive structure, a spiral groove matched with the screw rod 22 is formed in the sliding piece, the screw rod 22 is driven to rotate through rotation of a hand wheel, and then the sliding piece 23 is driven to move up and down along the screw rod 22, so that the sliding piece 23 is lifted. The sliding piece 23 is in a box body structure, the clamping groove 25 in the sliding piece is matched with the pressing plate frame 42, the pressing plate frame 42 is fixed with the sliding piece 23 through bolts, and the pressing plate frame 42 is driven to lift in the vertical movement process of the sliding piece 23. The operation is reliable and convenient, and the transmission is reliable. In addition, the lifting adjusting mechanism 2 can also adopt a gear chain transmission structure.
In order to improve the usability of the adjusting member 21, in the present invention, the adjusting member 21 includes a chassis 210 disposed on the base 1, a cylindrical housing 211 disposed on the chassis 210 and having a cavity therein, a cover 212 disposed at an upper end of the cylindrical housing 211, and a bearing 213 disposed in the cavity of the cylindrical housing 211, wherein a through hole communicating with the cavity inside the cylindrical housing 211 is formed at a top end of the cover 212, and a bottom end of the screw 22 penetrates through the through hole and is connected with the bearing 213 in a matching manner. The chassis 210 is connected to the base 1 through bolts, and is connected to the cylindrical housing 211 into an integral structure, the structure is reliable, the cover 212 is in a frustum-shaped structure, and the lower end of the cover 212 is connected to the cylindrical housing through bolts. Through this casing protection architecture, effectually avoided in the drilling to combined material board in-process miscellaneous bits splash and fall in adjusting part 21 and influence drilling and lift adjustment operation.
The multi-layer curved surface cushion plate 40 comprises a curved surface silica gel protection pad 401 arranged below the pressure plate assembly 41, a curved surface self-adaptive convex seat 402 which is connected above the self-adaptive supporting mechanism 3 in a matching way, and a curved surface drilling nonmetal cushion plate 403 arranged between the curved surface silica gel protection pad 401 and the curved surface self-adaptive convex seat 402; the positioning piece 43 vertically penetrates through the curved surface silica gel protection pad 401, the curved surface drilling nonmetal backing plate 403 and the curved surface self-adaptive convex seat 402 respectively, and a curved surface convex column 404 matched with the self-adaptive supporting mechanism 3 is arranged on the curved surface self-adaptive convex seat 402. The curved surface backing plate is multilayer structure, and the reliability is good, plays certain cushioning effect to powerful drilling pressure in drilling process, avoids powerful effort to the bad influence that drilling periphery produced. And each backing plate is of a curved surface structure, the curvature of each backing plate has adaptability, certain curved surface deformability is realized, corresponding curved surface deformation is generated according to composite plates with different plate thicknesses or curvatures, the self-adaptability compaction and lamination of the composite plates are ensured, and the low drilling quality caused by larger gaps is avoided.
As shown in fig. 5 to 6, the platen assembly 41 includes an upper platen 410 and a lower platen 411 disposed below the upper platen 410, wherein the lower surface of the lower platen 411 has a curved surface structure, and the lower surface of the lower platen 411 is tightly attached to the upper surface of the curved silica gel protection pad 401. The upper pressing plate 410 and the lower pressing plate 411 are connected through bolts to form a combined structure. The mounting grooves 44 of the pressing plate assembly 41 are respectively formed on the upper pressing plate 410 and the lower pressing plate 411, and the mounting grooves 44 of the upper pressing plate 410 correspond to the mounting grooves 44 of the lower pressing plate 411. The mounting groove 44 both ends of top board 410 are provided with upper rail groove 412 respectively, and the mounting groove 44 both ends of holding down plate 411 are provided with down rail groove 413 respectively, and upper rail groove 412 and down rail groove 413 cooperation form the guide slot hole that supplies clamp plate frame 42 to run through, and portable drill bushing mechanism 5 is located mounting groove 44 and is connected with clamp plate frame 42 cooperation, is provided with the scale mark on the top board 410. The accuracy of movement in the movable drill bushing mechanism 5 is improved through the scale marks, the distance to be moved is formulated according to the hole distance, and the scale marks are aligned with the distance to be moved in a transverse movement mode, so that the movable drill bushing mechanism is convenient and reliable. The guide slot hole is used as a sliding groove 503 sliding along the pressing plate frame 42, and the whole transverse movement of the pressing mechanism 4 and the movable drill bushing mechanism 5 is realized according to the actual use requirement, so that the guide slot hole corresponds to the self-adaptive supporting mechanism 3 at the lower part, and the reliability of the preparation action during drilling is improved.
In order to improve the compact matching between the lower pressing plate 411 and the curved silica gel protection pad 401 in the multi-layer curved pad 40, in the present invention, the lower pressing plate 411 includes a flat pressing portion 414 provided with a mounting groove 44 and inclined pressing portions 415 respectively and obliquely disposed at two sides of the flat pressing portion 414, and the slope of the inclined pressing portions 415 is adapted to the curvature of the curved surface structure. The flat pressing part 414 is used for pressing positively, the inclined pressing part 415 is used for pressing obliquely, and is matched with the curved silica gel protection pad 401 on the whole, so that the attaching effect of the flat pressing part and the curved silica gel protection pad is effectively improved, and the influence of a large gap on the usability is avoided.
The mobile drill bushing mechanism 5 includes a plurality of drill bushing holders 50 slidably coupled to the pressure plate frame 42 within the mounting slot 44, a drill bushing 51 cooperatively coupled to the drill bushing holders 50, and a disc screw 52 disposed on the drill bushing holders 50 for securing the position of the drill bushing holders 50. The drill bushing seats 50 are multiple, so that the multi-hole drilling of the composite material plate can be realized at the same time, each drill bushing seat 50 can transversely slide along the pressing plate frame 42, and the distance between each drill bushing seat 50 is adjusted according to the use requirement, so that the adjustment of the hole pitch is realized. The drill bushing 51 is positioned on the drill bushing seat 50, and the drill bushings 51 with different apertures are selected according to the use requirement, so that the adjustment of the sizes of the different apertures on the composite board is realized.
In order to improve the usability of the drill bushing holder 50, as shown in fig. 7, in the present invention, the drill bushing holder 50 includes a holder body 501 and wing plates 502 respectively disposed at two ends of the holder body 501, a sliding slot 503 slidably engaged with the pressure plate frame 42 is formed between the wing plates 502 and the holder body 501, a drill bushing placement area 504 is formed between the two wing plates 502, and a pressing member 505 and a vertical duct 506 for mounting the drill bushing 51 are respectively disposed on the holder body 501 located in the drill bushing placement area 504.
As shown in fig. 8, the drill bushing 51 includes a bushing body 510 having a hollow structure and being connected in the vertical hole 506, and a bushing head 511 disposed at an upper end of the bushing body 510, wherein the bushing body 510 and the bushing head 511 are both cylindrical structures, and a diameter of the bushing head 511 is larger than a diameter of the bushing body 510. The sleeve 510 is positioned within the vertical bore 506 and the sleeve head 511 is positioned externally. The outer wall of the sleeve head 511 is provided with at least two flat cutting surfaces 512, a bulge 513 is arranged on any flat cutting surface 512, a plurality of flat cutting surfaces 512 are adjacent or are arranged at intervals, the bulge 513 is matched with the pressing piece 505 arranged on the drill sleeve seat 50, the pressing piece 505 is pressed on the bulge 513 by a screw, and therefore reliable fixing of the drill sleeve 51 is achieved, and reliability in drilling is improved. When the drill bushing 51 needs to be replaced, the screw is unscrewed, the drill bushing 51 is pulled out, and the operation is convenient.
As shown in fig. 9, the adaptive support mechanism 3 includes a curved adaptive recess 31 slidably connected to the base 1 and having a curved recess 30, and a support spring set 32 vertically disposed on a side of the curved adaptive recess 31, where the curved recess 30 of the curved adaptive recess 31 is matched with the curved protrusion 404 of the curved adaptive boss 402. The supporting spring group 32 can play a role in supporting and fixing pressure on the multi-layer curved surface base plate 40, improves the compactness of the fit between the base plates, avoids larger gaps, helps to prevent layering defects and improves drilling quality. T-shaped guide rails 33 are respectively arranged on two sides of the bottom end of the curved surface self-adaptive recess 31, and the T-shaped guide rails 33 are matched with T-shaped grooves 34 formed on two sides of the base 1. By matching the T-shaped groove 34 with the T-shaped guide rail 33, the curved surface self-adaptive recess 31 can slide transversely along the base 1, the rail groove matching has a longitudinal limiting function, and the matching sliding reliability is improved.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The adjustable multi-hole site composite material curved surface drilling fixture device is characterized by comprising a base (1), an adaptive supporting mechanism (3) connected to the base (1) in a matching way, and a pressing mechanism (4) positioned above the adaptive supporting mechanism (3), wherein the pressing mechanism (4) corresponds to the adaptive supporting mechanism (3);
The pressing mechanism (4) comprises a multi-layer curved surface base plate (40) positioned above the self-adaptive supporting mechanism (3), a pressing plate assembly (41) arranged above the multi-layer curved surface base plate (40) and a pressing plate frame (42) transversely penetrating through the pressing plate assembly (41), wherein two ends of the pressing plate assembly (41) are respectively connected with the multi-layer curved surface base plate (40) through positioning pieces (43);
The fixture device further comprises lifting adjusting mechanisms (2) and movable drill bushing mechanisms (5) which are respectively arranged at two ends of the base (1) and are connected to the pressing mechanisms (4) in a matching mode, mounting grooves (44) are formed in the pressing plate assemblies (41), and the movable drill bushing mechanisms (5) are located in the mounting grooves (44) and are connected to the pressing plate frames (42) in a matching mode;
The lifting adjusting mechanism (2) comprises an upright post (20) arranged on the base (1), an adjusting piece (21) arranged on the base (1) and positioned in the upright post (20), a screw rod (22) matched and connected with the adjusting piece (21) and a sliding piece (23) positioned in the upright post (20) and slidingly connected with the screw rod (22), the top end of the screw rod (22) penetrates through the upright post (20) and is connected with a driving hand wheel (24), the sliding piece (23) is matched and connected with the pressing plate frame (42), and a clamping groove (25) matched and connected with the pressing plate frame (42) is formed in the sliding piece (23);
The adjusting piece (21) comprises a chassis (210) arranged on the base (1), a cylindrical shell (211) arranged on the chassis (210) and internally provided with a cavity, a cover body (212) arranged at the upper end of the cylindrical shell (211) and a bearing (213) arranged in the cavity of the cylindrical shell (211), a through hole communicated with the cavity in the cylindrical shell (211) is formed in the top end of the cover body (212), and the bottom end of the screw rod (22) penetrates through the through hole and is connected with the bearing (213) in a matched mode;
The multi-layer curved surface base plate (40) comprises a curved surface silica gel protection pad (401) arranged below the pressing plate assembly (41), a curved surface self-adaptive convex seat (402) which is connected above the self-adaptive supporting mechanism (3) in a matching way, and a curved surface drilling nonmetal base plate (403) arranged between the curved surface silica gel protection pad (401) and the curved surface self-adaptive convex seat (402);
the locating piece (43) vertically penetrates through the curved surface silica gel protection pad (401), the curved surface drilling nonmetal backing plate (403) and the curved surface self-adaptive convex seat (402) respectively, and the curved surface self-adaptive convex seat (402) is provided with a curved surface convex column (404) matched with the self-adaptive supporting mechanism (3).
2. The adjustable porous composite curved surface drilling fixture device according to claim 1, wherein the pressing plate assembly (41) comprises an upper pressing plate (410) and a lower pressing plate (411) arranged below the upper pressing plate (410), the lower surface of the lower pressing plate (411) is of a curved surface structure, and the lower surface of the lower pressing plate (411) is tightly attached to the upper surface of the curved surface silica gel protection pad (401);
the utility model discloses a movable drill sleeve mechanism, including upper pressure plate (410), mounting groove (44), lower pressure plate (411), movable drill sleeve mechanism (5), upper pressure plate (410), lower pressure plate (410), mounting groove (44), upper rail groove (412), lower rail groove (413) are provided with respectively at mounting groove (44) both ends of upper pressure plate (410) and lower pressure plate (411), upper rail groove (412) and lower rail groove (413) cooperation form the guide slot that supplies clamp plate frame (42) to run through, movable drill sleeve mechanism (5) are located in mounting groove (44) and with clamp plate frame (42) cooperation is connected, be provided with the scale mark on upper pressure plate (410).
3. The adjustable porous composite curved surface drilling fixture device according to claim 2, wherein the lower pressing plate (411) comprises a flat pressing part (414) provided with a mounting groove (44) and inclined pressing parts (415) obliquely arranged on two sides of the flat pressing part (414), and the slope of the inclined pressing parts (415) is matched with the curvature of a curved surface structure of the lower surface of the lower pressing plate (411).
4. The adjustable multi-hole composite curved surface drilling jig device according to claim 1, wherein the movable drill bushing mechanism (5) comprises a plurality of drill bushing seats (50) located in the mounting groove (44) and slidingly connected to the pressure plate frame (42), drill bushings (51) cooperatively connected to the drill bushing seats (50), and disc screws (52) arranged on the drill bushing seats (50) and used for fixing positions of the drill bushing seats (50).
5. The adjustable porous composite curved surface drilling fixture device according to claim 4, wherein the drill bushing seat (50) comprises a seat body (501) and wing plates (502) respectively arranged at two ends of the seat body (501), a sliding groove (503) which is in sliding fit with the pressing plate frame (42) is formed between the wing plates (502) and the seat body (501), a drill bushing placing area (504) is formed between the two wing plates (502), and a pressing piece (505) and a vertical pore canal (506) for installing a drill bushing (51) are respectively arranged on the seat body (501) in the drill bushing placing area (504);
The drill bushing (51) comprises a bushing body (510) with a hollow structure inside and connected in the vertical pore canal (506) in a matching way and a bushing head (511) arranged at the upper end of the bushing body (510), the bushing body (510) and the bushing head (511) are both in a cylindrical structure, and the diameter of the bushing head (511) is larger than that of the bushing body (510);
the outer wall of the sleeve head (511) is provided with at least two flat cutting surfaces (512), a protrusion (513) is arranged on any flat cutting surface (512), and the pressing piece (505) is pressed on the protrusion (513).
6. The adjustable porous composite curved surface drilling fixture device according to claim 1, wherein the adaptive support mechanism (3) comprises a curved surface adaptive recess (31) which is slidably connected to the base (1) and has a curved surface groove (30), and a support spring group (32) vertically arranged on the side surface of the curved surface adaptive recess (31), and the curved surface groove (30) of the curved surface adaptive recess (31) is matched with the curved surface convex column (404) of the curved surface adaptive convex seat (402);
T-shaped guide rails (33) are respectively arranged on two sides of the bottom end of the curved surface self-adaptive recess (31), and the T-shaped guide rails (33) are matched with T-shaped grooves (34) formed in two sides of the base (1).
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