CN111438392A - Round opening cover positioning and drilling tool and using method thereof - Google Patents
Round opening cover positioning and drilling tool and using method thereof Download PDFInfo
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- CN111438392A CN111438392A CN202010411565.4A CN202010411565A CN111438392A CN 111438392 A CN111438392 A CN 111438392A CN 202010411565 A CN202010411565 A CN 202010411565A CN 111438392 A CN111438392 A CN 111438392A
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- 238000005553 drilling Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 30
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 30
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 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
- B23B47/28—Drill jigs for workpieces
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2247/00—Details of drilling jigs
- B23B2247/12—Drilling jigs with means to affix the jig to the workpiece
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Abstract
The invention provides a circular opening cover positioning and drilling tool and a using method thereof, and belongs to the technical field of mechanical manufacturing and assembling. The device comprises a positioning platform, a rubber pad, a longitudinal V-shaped clamping device, a transverse sliding rail, a Y-axis zero pointer, a Y-axis rotating pointer, an angle ruler disc, a Y-axis sliding support, a locking screw, a guide hole positioning block, a jackscrew, an alloy bushing, a Y-axis sliding guide rail deflection locking device, an X-axis locking device, a transverse V-shaped clamping device and a transverse sliding support. The auxiliary positioning drilling tool for rapidly drilling the circular opening cover is strong in universality, high in practicability and simple in operation difficulty, not only can the working efficiency be greatly improved, but also the manual control factors of the product quality are assisted by a mechanical device, and the stability of the tool is ensured, and meanwhile, the product quality is also ensured.
Description
Technical Field
The invention belongs to the technical field of mechanical manufacturing and assembling, and mainly aims to solve the difficult problems of high difficulty in positioning a fixing nail hole of a circular covering cover (hereinafter referred to as a covering cover) on an airplane, large central size deviation of a drilled hole and the like.
Background
At present, in the manufacturing process of an airplane, in order to facilitate early installation and later maintenance, detachable covering covers are adopted on the surfaces of airplane skin for installation of all finished products, cables, guide pipes and other parts of the airplane and relevant debugging work, and after all work is finished, each covering cover is fixed on the airplane structure one by using screws. However, since some of the ports on the airplane have no screw holes or guide holes smaller than a predetermined size before being assembled, it is necessary to ream and recess the ports that do not meet the installation standards before the ports on the airplane are assembled, and then to fix the ports. At present, the conventional method is that for a cover with a guide small hole, a drill bit meeting the size requirement is directly used for being perpendicular to the guide small hole of the cover, and the hole is directly reamed. And for the other type of the method, for the covering cap without the mounting hole, after the number of the fixing nails on the covering cap is determined, firstly, the position of each fixing nail on the covering cap is determined by using an angle and straight line measuring tool according to the requirements of a drawing, marking is carried out by marking, then, the drill bit with the size smaller than the specified size is used for drilling the guide hole, and after all the guide holes are drilled, the drill bit meeting the requirements is used for final drilling and pit digging. Although the two modes can well complete the drilling work of the circular opening cover fixing nail, some problems to be solved urgently appear, firstly, how to prevent the size out-of-tolerance influence on the fixing nail hole caused by centrifugal shaking force generated by the air drill in the rotating process is avoided; secondly, when the number of the drilled fixing nail holes is large, how to convert the manual quality control factor into an auxiliary tool to control the fixing nail holes reduces the operation difficulty; thirdly, how to integrate the measurement and drilling work of the fixing nail hole of the cover without the guide hole together so as to improve the working efficiency on the premise of ensuring the quality;
in view of the reasons, the auxiliary positioning tool for fast drilling of the circular opening cover is simple in structure and high in practicability, and the positioning, drilling and hole digging machining processes of the fixing nail of the circular opening cover are perfected to different degrees by comprehensively considering and designing the aspects of drilling quality, operation difficulty, working efficiency and the like.
Disclosure of Invention
The invention aims to provide the auxiliary positioning drilling tool for quickly drilling the circular opening cover, which has strong universality, high practicability and simple operation difficulty, not only can greatly improve the working efficiency, but also adopts mechanical devices to assist the control of the manual control factors of the product quality, and ensures the stability of the tool and the product quality.
The invention has the technical effects that:
a circular opening cover positioning and drilling tool comprises a positioning platform 1, a rubber pad 2, a longitudinal V-shaped clamping device 3, a transverse sliding rail 4, a Y-axis zero-position pointer 5, a Y-axis rotating pointer 6, an angle ruler disc 7, a Y-axis sliding support 8, a locking screw 9, a guide hole positioning block 10, a jackscrew 11, an alloy bushing 12, a Y-axis sliding guide rail deflection locking device 13, an X-axis locking device 14, a transverse V-shaped clamping device 15 and a transverse sliding support 16.
The positioning platform 1 is made of steel metal materials and provides a mounting and fixing platform and a later-stage drilling operation platform for other parts; the rubber pad 2 is arranged on the positioning platform 1, plays a role in protection and buffering, and prevents a drill bit from touching the workpiece positioning platform 1 to cause damage to the drill bit and the platform after the drill bit drills through the circular opening cover skin; the two transverse sliding supports 16 are respectively arranged at two sides of the X-axis direction of the positioning platform 1, and three contact surfaces of the two transverse sliding supports 16 and the transverse sliding rail 4 are in transition fit, so that a precise sliding support is ensured to be provided for the transverse sliding rail 4, and the drilling device on the transverse sliding supports can be ensured to horizontally and stably slide and accurately position in the X-axis direction. Each transverse sliding support 16 is provided with a transverse V-shaped clamping device 15 which is used for positioning the relative position of the circle center of the circular opening cover and the circle center of the tool and clamping the circular opening cover in the X-axis direction; the X-axis locking device 14 is used for locking the transverse sliding rail 4 after being positioned; the longitudinal V-shaped clamping device 3 is arranged in the Y-axis direction of the positioning platform 1 and is used for clamping the circular opening cover in the Y-axis direction;
the Y-axis sliding support 8 is arranged on the transverse sliding rail 4, scales are arranged on one side of the Y-axis sliding support 8, a guide hole positioning block 10 is arranged on the other side of the Y-axis sliding support 8, the guide hole positioning block 10 can move up and down along the Y-axis sliding support 8, and the guide hole positioning block jointly complete length measurement of the circle center of the fixed hole from the circle center of the opening cover and position drilling devices; a pointer is arranged on one side of the guide hole positioning block 10 and used for indicating scales on the Y-axis sliding support 8, and a locking screw 9 is arranged on the other side of the guide hole positioning block and used for locking the guide hole positioning block 10 after the distance between the circle center of the positioning hole and the circle center of the opening cover is determined; the alloy bushing 12 is arranged at the position of the central positioning hole of the guide hole positioning block 10, the alloy bushing 12 not only can play a role in drilling the positioning hole, but also can select the alloy bushings 12 with different inner diameters according to the positioning holes with different sizes, and the processing range of the tool is widened; a jackscrew 11 is arranged above the guide hole positioning block 10 so as to replace alloy bushings 12 with different sizes; an angle ruler disk 7 is arranged at the lower part of the Y-axis sliding support 8, and the angle ruler disk 7 is locked through a Y-axis sliding guide rail deflection locking device 13; a Y-axis rotating pointer 6 is arranged on one side of the Y-axis sliding support 8 and used for indicating the scale of the angle ruler disc 7; and a Y-axis zero pointer 5 is arranged at the lower end of the Y-axis sliding support 8 and used for ensuring that the Y-axis central lines of the drilling device and the circular opening cover coincide.
The use method of the circular opening cover positioning and drilling tool comprises the following steps:
(1) marking two mutually perpendicular straight lines on the circle center of the circular opening cover, and marking an X axis and a Y axis; then adjusting the longitudinal V-shaped clamping device 3 and the transverse V-shaped clamping device 15 to increase the distance between the longitudinal V-shaped clamping device and the transverse V-shaped clamping device;
(2) according to the diameter requirement of the round mouth cap nail, an alloy bushing 12 meeting the size requirement is selected, then the alloy bushing is arranged in the guide hole positioning block 10, and the alloy bushing is tightly jacked by a jackscrew 11;
(3) placing the circular opening cover on the positioning platform 1, aligning two end points of an X axis on the circular opening cover with reference points of the left transverse V-shaped clamping device 15 and the right transverse V-shaped clamping device 15, keeping the two end points on the X axis on the circular opening cover on a straight line, adjusting the transverse V-shaped clamping devices 15, and pre-clamping the circular opening cover;
(4) adjusting the longitudinal V-shaped clamping device 3 to clamp the longitudinal edge of the circular opening cover in the V-shaped stepped groove of the longitudinal V-shaped clamping device 3, tightly pressing the circular opening cover by hand to ensure that the lower surface of the circular opening cover is tightly contacted with the upper surfaces of the three V-shaped stepped grooves, and then screwing the transverse V-shaped clamping device 15 and the longitudinal V-shaped clamping device 3, namely finishing the fixation of the circular opening cover;
(5) loosening the two X-axis locking devices 14, enabling the Y-axis zero-position pointer 5 to be overlapped with the Y axis on the circular opening cover, and then screwing the X-axis locking devices 14;
(6) adjusting the guide hole positioning block 10 to a specified position according to the size from the circle center of the fixing hole to the circle center of the circular opening cover, and then screwing the locking screw 9;
(7) rotating the Y-axis sliding support 8 to a specified angle according to the deflection angle of the circle center of the fixed hole relative to the X axis, then locking the Y-axis sliding guide rail deflection locking device 13, and then drilling along the alloy bushing 12 by using a drill bit of an air drill;
(8) if the radiuses from the circle center of the fixed hole to the circle center of the circular opening cover are the same, sequentially repeating the step (5) to complete all drilling work;
(9) if the radiuses from the circle center of the fixing hole to the circle center of the circular opening cover are different, sequentially repeating the working steps (4) and (5) to finish all drilling work;
(10) finally, a nest cutting drill meeting the nest cutting requirements is used for sequentially cutting the holes which are just drilled;
(11) after the nest cutting work of all fixed orificess is finished, loosen vertical V-arrangement chucking device 3 and horizontal V-arrangement chucking device 15, with circular flap pull down can, accomplish circular flap processing work promptly.
The invention has the beneficial effects that:
(1) the tool has the advantages of precise mechanical structure, high flexibility and good stability, and due to the double-shaft adjustable mechanical positioning structure, the tool is convenient to clamp and can adapt to the drilling work of circular covers with different diameters, so that the application range of the tool is widened.
(2) The invention is suitable for the round covering cap, so that the V-shaped iron with the step groove is adopted by the longitudinal and transverse positioning devices, the covering cap can be suspended and fixed, the covering cap can be prevented from moving under the action of the centrifugal force of the pneumatic drill in the drilling process, and the positioning accuracy of the covering cap and the stability of the tool are ensured.
(3) The replaceable alloy bushing 12 is adopted in the invention, starting from the diameter of the fixing nail, the tool can adapt to the drilling work of nail holes of fixing nails with different sizes, the application range of the tool is further widened, and the service life of equipment is further prolonged due to the replaceability of the alloy bushing 12 because the alloy bushing belongs to an easily-worn part.
(4) The design bright point of the invention is that after the cover cap is fixed, the Y-axis sliding support 8 can be ensured to be in any deflection angle, the central axis of the alloy bush 12 is in a vertical state with the upper surface of the cover cap, and the size precision and the surface processing quality of the fixed hole can be completely ensured.
(5) The invention is a tool integrating measurement, positioning and auxiliary drilling into a whole, compared with the prior working mode and used tools, the invention not only improves the integration degree, but also greatly improves the working efficiency on the basis of reducing the operation difficulty.
Drawings
Fig. 1 is a schematic structural view of a circular flap positioning and drilling tool.
In the figure: 1, positioning a platform; 2, a rubber pad; 3 a longitudinal V-shaped clamping device; 4, a transverse sliding rail; 5Y-axis zero pointer; 6Y-axis rotating pointer; 7 an angle ruler disc; an 8Y-axis sliding support; 9 locking the screw; 10 guide hole positioning blocks; 11, screwing; 12 an alloy bushing; 13Y-axis sliding guide rail deflection locking device; 14X axis locking means; 15 transverse V-shaped clamping devices; 16 laterally sliding the support.
Detailed Description
The device mainly comprises a workpiece positioning platform 1, a rubber pad 2, a longitudinal V-shaped clamping device 3, a transverse sliding rail 4, a Y-axis zero-position pointer 5, a Y-axis rotating pointer 6, an angle ruler disc 7, a Y-axis sliding support 8, a locking screw 9, a guide hole positioning block 10, a jackscrew 11, an alloy bushing 12, a Y-axis sliding guide rail deflection locking device 13, an X-axis locking device 14, a transverse V-shaped clamping device 15 and a transverse sliding support 16, and the structure of each part is shown in figure 1. The workpiece positioning platform 1 is made of a high-hardness and wear-resistant steel metal material, and mainly provides a mounting and fixing platform and a later-stage drilling operation platform for other parts; the rubber pad 2 is mainly used for playing a role in protection and buffering, and preventing the drill bit from touching the workpiece positioning platform 1 to cause damage to the drill bit and the platform after the drill bit drills through the cover skin; the longitudinal V-shaped clamping device 3 is mainly used for realizing the clamping function of the circular opening cover in the Y-axis direction; the transverse slide rail 4 is mainly used for realizing the horizontal movement of the whole drilling device in the X-axis direction; the Y-axis zero pointer 5 is mainly used for ensuring that the Y-axis central line of the drilling device and the circular opening cover coincide; the Y-axis rotating pointer 6, the angle ruler disk 7 and the Y-axis sliding guide rail deflection locking device 13 jointly form an angle measuring device which is used for indicating the deflection angle of each positioning hole relative to the X-axis direction of the circular opening cover to play a role in positioning; the Y-axis sliding support 8 and the guide hole positioning block 10 jointly form a length measuring and positioning device with the fixed hole circle center being away from the cover circle center; the locking screw 9 is mainly used for locking the guide hole positioning block 10 after the distance from the circle center of the positioning hole to the circle center of the opening cover is determined; the jackscrew 11 is mainly used for conveniently replacing alloy bushings 12 with different sizes and locking the same; the alloy bushing 12 not only can play a role of a guide hole in drilling of the positioning hole, but also can select alloy bushings with different inner diameters according to positioning holes with different sizes, so that the processing range of the tool is widened; the X-axis locking device 14 is mainly used for locking the transverse sliding rail 4 after the position of the transverse sliding rail is determined; the transverse V-shaped clamping device 15 is mainly used for positioning the relative position of the circle center of the opening cover and the circle center of the tool and clamping the circular opening cover in the X-axis direction; the three contact surfaces of the two transverse sliding supports 16 and the transverse sliding rail 4 are in transition fit, and a precise sliding support is mainly provided for the transverse sliding rail 4, so that stable sliding and accurate positioning of the transverse sliding rail are guaranteed.
The specific implementation mode and the steps of the invention are as follows:
(1) drawing two mutually perpendicular straight lines on the circle center of the circular opening cover by using a pencil, and marking an X axis and a Y axis; then adjusting the longitudinal V-shaped clamping device 3 and the transverse V-shaped clamping device 15 to increase the distance between the longitudinal V-shaped clamping device and the transverse V-shaped clamping device;
(2) according to the diameter requirement of the mouth cap nail, an alloy bushing 12 meeting the size requirement is selected, then the alloy bushing is arranged in the guide hole positioning block 10, and the alloy bushing is tightly jacked by a jackscrew 11;
(3) placing the opening cover on the workpiece positioning platform 1, aligning two end points of an X axis on the opening cover with reference points of the left transverse V-shaped clamping device 15 and the right transverse V-shaped clamping device 15, keeping the two end points on the X axis on the opening cover on a straight line, adjusting the transverse V-shaped clamping devices 15, and pre-clamping the opening cover;
(4) adjusting the longitudinal V-shaped clamping device 3 to clamp the longitudinal edge of the cover cap in the V-shaped stepped groove of the longitudinal V-shaped clamping device 3, tightly pressing the cover cap by hand to ensure that the lower surface of the cover cap is tightly contacted with the upper surfaces of the three V-shaped stepped grooves, and then screwing the transverse V-shaped clamping device 15 and the longitudinal V-shaped clamping device 3, namely finishing the fixation of the cover cap;
(5) loosening the two X-axis locking devices 14, enabling the Y-axis zero-position pointer 5 to be overlapped with the Y axis on the cover cap, and then screwing the X-axis locking devices 14;
(6) adjusting the guide hole positioning block 10 to a specified position according to the size from the circle center of the fixing hole to the circle center of the opening cover, and then screwing the locking screw 9;
(7) rotating the Y-axis sliding support 8 to a specified angle according to the deflection angle of the circle center of the fixed hole relative to the X axis, then locking the Y-axis sliding guide rail deflection locking device 13, and then drilling along the alloy bushing 12 by using a drill bit of an air drill;
(8) if the radiuses from the circle center of the fixed hole to the circle center of the opening cover are the same, sequentially repeating the step (5) to complete all drilling work;
(9) if the radiuses from the circle center of the fixing hole to the circle center of the opening cover are different, sequentially repeating the working steps (4) and (5) to finish all drilling work;
(10) finally, a nest cutting drill meeting the nest cutting requirements is used for sequentially cutting the holes which are just drilled;
(11) after the nest cutting work of all fixed orificess is finished, loosen vertical V-arrangement chucking device 3 and horizontal V-arrangement chucking device 15, with the flap pull down can, accomplish flap processing work promptly.
Claims (2)
1. A circular opening cover positioning and drilling tool is characterized by comprising a positioning platform (1), a rubber pad (2), a longitudinal V-shaped clamping device (3), a transverse sliding rail (4), a Y-axis zero-position pointer (5), a Y-axis rotating pointer (6), an angle ruler disk (7), a Y-axis sliding support (8), a locking screw (9), a guide hole positioning block (10), a jackscrew (11), an alloy bushing (12), a Y-axis sliding guide rail deflection locking device (13), an X-axis locking device (14), a transverse V-shaped clamping device (15) and a transverse sliding support (16);
the positioning platform (1) is made of steel metal materials and provides a mounting and fixing platform and a later-stage drilling operation platform for other parts; the rubber pad (2) is arranged on the positioning platform (1); the two transverse sliding supports (16) are respectively arranged at two sides of the positioning platform (1) in the X-axis direction, and three contact surfaces of the two transverse sliding supports (16) and the transverse sliding rail (4) are in transition fit; each transverse sliding support (16) is provided with a transverse V-shaped clamping device (15) which is used for positioning the relative position of the circle center of the circular opening cover and the circle center of the tool and clamping the circular opening cover in the X-axis direction; the X-axis locking device (14) is used for locking the transverse sliding rail (4) after being positioned; the longitudinal V-shaped clamping device (3) is arranged in the Y-axis direction of the positioning platform (1) and is used for clamping the circular opening cover in the Y-axis direction;
the Y-axis sliding support (8) is arranged on the transverse sliding rail (4), one side of the Y-axis sliding support (8) is provided with scales, the other side of the Y-axis sliding support is provided with a guide hole positioning block (10), the guide hole positioning block (10) can move up and down along the Y-axis sliding support (8), and the guide hole positioning block jointly complete the length measurement of the circle center of the fixed hole from the circle center of the opening cover and the positioning and drilling device; one side of the guide hole positioning block (10) is provided with a pointer for indicating scales on the Y-axis sliding support (8), and the other side of the guide hole positioning block is provided with a locking screw (9) for locking the guide hole positioning block (10) after the distance between the circle center of the positioning hole and the circle center of the opening cover is determined; an alloy bushing (12) is arranged at the position of a central positioning hole of the guide hole positioning block (10); a jackscrew (11) is arranged above the guide hole positioning block (10) so as to replace alloy bushings (12) with different sizes; an angle ruler disc (7) is arranged at the lower part of the Y-axis sliding support (8), and the angle ruler disc (7) is locked through a Y-axis sliding guide rail deflection locking device (13); a Y-axis rotating pointer (6) is arranged on one side of the Y-axis sliding support (8) and used for indicating the scale of the angle ruler disc (7); and a Y-axis zero pointer (5) is arranged at the lower end of the Y-axis sliding support (8) and used for ensuring that the Y-axis central lines of the drilling device and the circular opening cover coincide.
2. The using method of the circular opening cover positioning and drilling tool is characterized by comprising the following steps:
(1) marking two mutually perpendicular straight lines on the circle center of the circular opening cover, and marking an X axis and a Y axis; then adjusting the longitudinal V-shaped clamping device (3) and the transverse V-shaped clamping device (15) to increase the distance between the longitudinal V-shaped clamping device and the transverse V-shaped clamping device;
(2) according to the diameter requirement of the round mouth cap nail, an alloy bushing (12) meeting the size requirement is selected, then the alloy bushing is arranged in the guide hole positioning block (10), and the alloy bushing is tightly jacked by a jackscrew (11);
(3) placing the circular opening cover on the positioning platform (1), aligning two end points of an X axis on the circular opening cover with reference points of a left transverse V-shaped clamping device (15) and a right transverse V-shaped clamping device (15), keeping the two end points on the X axis on the circular opening cover on a straight line, adjusting the transverse V-shaped clamping devices (15), and pre-clamping the circular opening cover;
(4) adjusting the longitudinal V-shaped clamping device (3) to clamp the longitudinal edge of the circular opening cover in the V-shaped stepped groove of the longitudinal V-shaped clamping device (3), tightly pressing the circular opening cover by hand to ensure that the lower surface of the circular opening cover is tightly contacted with the upper surfaces of the three V-shaped stepped grooves, and then screwing the transverse V-shaped clamping device (15) and the longitudinal V-shaped clamping device (3), namely finishing the fixation of the circular opening cover;
(5) loosening the two X-axis locking devices (14), enabling the Y-axis zero-position pointer (5) to be overlapped with the Y axis on the circular opening cover, and then screwing the X-axis locking devices (14);
(6) adjusting the guide hole positioning block (10) to an appointed position according to the size from the circle center of the fixing hole to the circle center of the circular opening cover, and then screwing the locking screw (9);
(7) rotating a Y-axis sliding support (8) to a specified angle according to the deflection angle of the circle center of the fixed hole relative to the X axis, then locking a Y-axis sliding guide rail deflection locking device (13), and then drilling along an alloy bushing (12) by using a drill bit of an air drill;
(8) if the radiuses from the circle center of the fixing hole to the circle center of the circular opening cover are the same, sequentially repeating the step (5) to complete all drilling work;
(9) if the radiuses from the circle center of the fixing hole to the circle center of the circular opening cover are different, the steps (4) and (5) are repeated in sequence to complete all drilling work;
(10) finally, a nest cutting drill meeting the nest cutting requirements is used for sequentially cutting the holes which are just drilled;
(11) after the nest cutting work of all fixing holes is finished, the longitudinal V-shaped clamping device (3) and the transverse V-shaped clamping device (15) are loosened, and the circular opening cover is detached, namely, the circular opening cover machining work is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010411565.4A CN111438392B (en) | 2020-05-15 | 2020-05-15 | Round flap positioning drilling tool and application method thereof |
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| CN202010411565.4A CN111438392B (en) | 2020-05-15 | 2020-05-15 | Round flap positioning drilling tool and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083069A (en) * | 2021-11-25 | 2022-02-25 | 中国航发哈尔滨轴承有限公司 | EDM (Electrical discharge machining) method for axial taper oil groove corresponding to oil hole |
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