A kind of auxiliary device for anti-inductive closed cavity non-visible hole

Abstract

The application provides an auxiliary device for anti-inducing closed cavity non-visible hole, comprising: a main body arranged in a closed cavity of a machine body structure; an ejecting device arranged on the bottom surface inside the main body; a punch supporting plate arranged inside the main body, the punch supporting plate being connected with the ejecting device; a punch arranged inside the main body, the bottom of the punch being connected with the center position of the punch supporting plate, the top of the punch being arranged as a sharp point; the punch being provided with a movable buckle in the circumferential direction; a punch clamping plate arranged inside the main body, the punch clamping plate being used for clamping the punch in the main body; wherein the movable buckle is retracted into the punch, the punch clamping plate no longer constrains the punch at this time, the punch moves upward under the elastic force of the ejecting device, so that a dot is punched on a product to be made into a hole; in the case that the operation space is limited and machine vision and laser punching cannot be used, the initial hole of the product to be replaced is quickly, accurately and efficiently made, and the anti-inducing hole is realized.

Description

Technical Field

[0001] This application belongs to the field of machining assembly process equipment technology, and in particular relates to an auxiliary device for a non-visible hole in a reverse-drawing sealed cavity. Background Technology

[0002] Aircraft maintenance and replacement processes often involve situations requiring in-situ drilling, such as replacing parts or patching damaged areas. Pre-drilling typically involves drilling from an existing bore towards the non-perforated part. However, for non-visible holes in certain sealed cavities, drilling from the non-perforated part towards an existing bore is necessary; this is called reverse drilling, or reverse hole drilling. Conventional manual reverse drilling methods are often affected by factors such as the drilling positioning method, tool size, tool precision, and available space, resulting in low drilling accuracy or even ineffective drilling. Due to the large size, high cost, and complexity of the equipment, advanced drilling positioning technologies (such as machine vision and lasers) cannot be widely applied on aircraft.

[0003] Traditional open-space hole positioning methods mostly involve scriber hole positioning. The scriber slides against the inner wall of the original hole to mark the hole on the product to be drilled, and then a new hole is made according to the mark. However, the process of making a hole according to the mark has problems such as unclear mark boundaries and inability to accurately locate the center point.

[0004] For non-visible holes in sealed cavities, reverse-line hole positioning is mostly done manually. The principle of reverse-line hole positioning is that two intersecting lines determine a center point, and the intersection point remains unchanged as the intersecting lines extend infinitely. Two rays radiate outward from the center of the original machine hole. The part requiring the hole is placed at the hole position, and then the two rays are reflected back to the surface to form an intersection point. This intersection point is the hole center. The hole is then drilled from this hole center towards the original machine hole. The hole positioning accuracy of this method is about φ1mm.

[0005] In summary, the current method of manually scribing non-visible holes in sealed cavities is complex and time-consuming. Furthermore, it is affected by the precision of the operating tools and scribing, resulting in large scribing errors and difficulty in guaranteeing the accuracy of the hole position. Summary of the Invention

[0006] Purpose of the invention: To address the problems of large errors, complex operation, long working time, and inability to quickly and accurately find the center of the original hole in manual reverse drilling in confined or narrow spaces, and to solve the problem of quickly, accurately, and efficiently realizing reverse drilling when the operating space is limited and machine vision, laser drilling, or other methods cannot be used.

[0007] This application provides an auxiliary device for a non-visible hole in a sealed cavity for reverse drawing, the device comprising: The main body is housed within a sealed cavity of the machine's structure. The ejection device is located on the bottom surface inside the main body; A punch support plate is disposed inside the main body, and the punch support plate is connected to the ejection device; A punch is disposed inside the main body, with its bottom connected to the center of the punch support plate and its top set as a pointed point; the punch is provided with movable buckles in its circumferential direction. A punch clamp is disposed inside the main body and is used to clamp the punch inside the main body; When the movable buckle retracts into the punch, the punch retainer no longer constrains the punch, and it moves upward under the elastic force of the ejector device, thereby making dots on the product to be drilled.

[0008] Preferably, the main body is a hollow cylinder with an opening at the top.

[0009] Preferably, the punch has a circumferential area for accommodating the movable buckle, and a spring is provided in this area, the spring being connected to the movable buckle.

[0010] Preferably, the punch has a built-in micro motor, which is connected to the movable buckle. The micro motor can pull the movable buckle back to the area, at which point the punch clamp no longer constrains the punch.

[0011] Preferably, the device further includes: The cable is secured by a clip, and the micro motor is connected to the movable clip via the cable.

[0012] Preferably, the device further includes: A motor remote controller is used to remotely control the micro motor, thereby enabling the movable latch to be pulled back to the area.

[0013] Preferably, the movable buckle is a triangular plate.

[0014] Preferably, when the punch clamp holds the punch inside the main body, the ejection device is in an energy storage state.

[0015] The beneficial technical effects of this application are as follows: This invention can accurately locate the center of a non-visible hole in a sealed cavity without a reference point, improving the accuracy of hole drilling and the product yield. This invention can ensure the quality of reverse hole drilling and improve work efficiency without relying on high-precision, large-scale equipment, controlling costs and increasing efficiency, demonstrating lean engineering. This invention is applicable to reverse hole drilling operations of different types of holes, possessing universality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of the reverse aperture device of the present invention; Figure 2 This is a cross-sectional view of the punch and movable buckle of the present invention; Figure 3 This is a schematic diagram of the working process of the present invention; Among them, 1-the main body of the device, 2-the ejection device, 3-the punch support plate, 4-the punch, 5-the movable buckle, 6-the punch plate, 7-the buckle fixing cable, 8-the movable buckle spring, 9-the miniature motor and 10-the motor remote control. Detailed Implementation

[0018] The following is a description of the embodiments and appendices. Figure 1 -Appendix Figure 3 The present invention will be described in further detail, but the embodiments of the present invention are not limited thereto.

[0019] This invention proposes a device suitable for use in enclosed or confined spaces to quickly reverse the core of the original hole onto the product to be drilled. When the operating space is limited and machine vision, laser drilling, or other methods cannot be used, the device can quickly, accurately, and efficiently create the initial hole of the product to be replaced, thus achieving reverse drilling.

[0020] This invention provides an auxiliary device for creating a non-visible hole in a sealed cavity. The device consists of a main body 1, an ejector 2, a punch support plate 3, a punch 4, a movable buckle 5, a punch clamp plate 6, a buckle fixing cable 7, a movable buckle spring 8, a micro motor 9, and a motor remote control 10.

[0021] This device uses external force to press the punch 4 downwards, compressing the movable latch spring 8 and pressing the movable latch 5 into the punch 4. When the movable latch 5 exceeds the limit of the punch clamp plate 6, the movable latch spring 8 resets the movable latch 5, at which point the punch 4 is locked in the punch clamp plate 6. The motor remote control 10 remotely controls the operation of the micro motor 9 to tighten the latch fixing cable 7, allowing the movable latch 5 to retract within the punch 4, releasing the punch to strike the target. Furthermore, by replacing the springs with different elastic coefficients in the ejection device 2, the striking force can be controlled.

[0022] The auxiliary device for the non-visible hole of the reverse-pulling sealed cavity consists of the main body 1, the ejection device 2, the punch support plate 3, the punch 4, the movable buckle 5, the punch clamp plate 6, the buckle fixing cable 7, the movable buckle spring 8, the micro motor 9, and the motor remote control 10.

[0023] Among them, the combination of punch 4 with movable buckle 5, buckle fixing cable 7, movable buckle spring 8 and micro motor 9, which realize the automatic punching function under the signal control of motor remote controller 10, are all protected points of this application.

[0024] The main body 1 of the device is made of smooth rods or threaded rods of different diameters. The reverse drilling holes on through holes, blind holes and threaded holes of different diameters are all protected points of this patent.

[0025] This invention can accurately locate the center of a non-visible hole in a sealed cavity without a reference point, improving the accuracy of hole drilling and the product yield. This invention can ensure the quality of reverse hole drilling and improve work efficiency without relying on high-precision, large-scale equipment, controlling costs and increasing efficiency, demonstrating lean engineering. This invention is applicable to reverse hole drilling operations of different types of holes, possessing universality.

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] 1) Press down the punch 4, the ejector device 2 presses it, converting the kinetic energy into the elastic potential energy of the spring in the ejector device 2, and the movable buckle 5 is reset by the movable buckle spring 8 until the punch 4 is locked on the punch plate 6.

[0028] 2) Install the main body 1 of the device into the original machine hole. By adjusting the diameter of the main body shell and the thread type, it can be adapted to through holes, blind holes and threaded holes of different diameters.

[0029] 3) After the reverse hole device is installed in place, place the product to be holed on the original hole.

[0030] 4) Using the motor remote control 10, the micro motor 9 is activated, which tightens the buckle fixing cable 7. When the movable buckle 5 is fully retracted into the punch 4, the ejector device 2 is activated, converting the stored elastic potential energy into kinetic energy and leaving a punch mark on the product to be punched.

[0031] 5) Remove the product to be drilled, use a drill bit to make the initial hole, and complete the reverse hole of the sealed cavity.

[0032] The above detailed embodiments are a description of the present invention. It should not be considered that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, several simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the protection scope of the present invention.

Claims

1. An auxiliary device for a non-visible hole in a sealed cavity for reverse drawing, characterized in that, The device includes: The main body is housed within a sealed cavity of the machine's structure. The ejection device is located on the bottom surface inside the main body; A punch support plate is disposed inside the main body, and the punch support plate is connected to the ejection device; A punch is disposed inside the main body, with its bottom connected to the center of the punch support plate and its top set as a pointed point; the punch is provided with movable buckles in its circumferential direction. A punch clamp is disposed inside the main body and is used to clamp the punch inside the main body; When the movable buckle retracts into the punch, the punch retainer no longer constrains the punch, and it moves upward under the elastic force of the ejector device, thereby making dots on the product to be drilled.

2. The apparatus according to claim 1, characterized in that, The main body is a hollow cylinder with an opening at the top.

3. The apparatus according to claim 1, characterized in that, The punch has a circumferential area for accommodating the movable buckle, and a spring is provided in this area, which is connected to the movable buckle.

4. The apparatus according to claim 3, characterized in that, The punch has a built-in micro motor, which is connected to the movable buckle. The micro motor can pull the movable buckle back to the area, at which point the punch clamp no longer restrains the punch.

5. The apparatus according to claim 4, characterized in that, The device further includes: The cable is secured by a clip, and the micro motor is connected to the movable clip via the cable.

6. The apparatus according to claim 5, characterized in that, The device further includes: A motor remote controller is used to remotely control the micro motor, thereby enabling the movable latch to be pulled back to the area.

7. The apparatus according to claim 6, characterized in that, The movable buckle is a triangular plate.

8. The apparatus according to claim 1, characterized in that, When the punch clamp holds the punch inside the main body, the ejection device is in an energy storage state.

Images