Multi-point positioning type curved surface drilling auxiliary tool
Through the multi-point positioning curved surface hole making auxiliary tooling, the combined design of substrate and contact rods is used to solve the accuracy of complex curved surface hole making, cost and artificial errors are reduced, and hole making efficiency and product quality are improved.
Patent Information
- Application Number
- CN202422046283.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing hole-making auxiliary tooling is difficult to adapt to aviation components with complex curved surfaces, resulting in easy running position of the drill bit, difficult to make holes, and a single design leads to confusion in the use of the tooling, increasing costs and manufacturing difficulties.
The multi-point positioning curved surface hole-making auxiliary tooling is adopted. Through the combined design of the substrate, contact rod and tie rod, the threaded structure and butterfly nut are used to fix the contact rod, and the drill bit angle is adjusted to adapt to the curved surfaces of different curvatures.
It realizes the accuracy of surface hole making, reduces human error, reduces costs, and improves work efficiency and product quality.
Smart Images
Figure CN223235662U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of equipment manufacturing, in particular to a multi-point positioning curved surface hole making auxiliary tool. Background Art
[0002] In the current field of aviation component assembly, there are many curved surface structures on the fuselage and wing surfaces. The characteristics of curved surface hole making are complex and diverse surface curvatures, high difficulty in hole making, easy movement of the drill bit position, and without auxiliary hole making tooling, it is difficult to ensure that the axial direction of the hole meets the technical requirements.
[0003] Existing drilling aids are designed to secure a hole in a single aircraft component. They utilize a positioning method where the tooling surface conforms to the curved surface to assist with drilling. However, with the large number of curved aircraft components, a single design results in multiple tooling types being used on-site. This can easily lead to confusion between similarly shaped parts, resulting in scrapped parts. Curved surface drilling jigs are expensive to manufacture and require high-quality CNC machine tools, increasing both cost and manufacturing complexity. Utility Model Content
[0004] The purpose of the utility model is to provide a multi-point positioning curved surface hole-making auxiliary tool, which has a certain versatility for curved surfaces with different curvatures and solves the problems in the prior art.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A multi-point positioning curved surface hole-making auxiliary tooling, comprising a base plate, a contact rod, and a pull rod;
[0007] A first through hole is provided at the center of the substrate, and a drill sleeve is provided in the first through hole; a plurality of second through holes are provided on the substrate around the center of the substrate, and a plurality of contact rods are respectively inserted into the second through holes and can move up and down relative to the substrate, and the number of the second through holes matches the number of the contact rods;
[0008] A slideway is provided on the side of the substrate, which is perpendicular to the second through hole; the slideway is connected to the second through hole; a pull rod is arranged in the slideway, and the pull rod moves relative to the slideway and presses against the contact rod in the second through hole, so that the position of the contact rod is fixed; a threaded area is provided on the pull rod, which is threadedly connected to the matching threaded structure, and the movement of the pull rod is driven by rotation, and can self-lock when it stops rotating.
[0009] As a preferred technical solution, the threaded structure is arranged on the inner wall of the slideway or is a threaded structure.
[0010] As an optimal technical solution, the threaded structure is a butterfly nut; a guide area is provided on the pull rod, and the cross-section of the guide area is polygonal; the slideway matches the shape of the guide area.
[0011] As an optimal technical solution, each pull rod is used to press against at least two contact rods; a straight slide passes through at least two second through holes; the outer wall of the pull rod is provided with protruding blocks matching the number of contact rods it presses against; the protruding blocks are used to press against the contact rods respectively.
[0012] As a preferred technical solution, there are four contact rods.
[0013] As a preferred technical solution, a rubber pad is provided at one end of the contact rod as a contact end with the curved surface; the contact end is an arc surface.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] Positioning is achieved by adjusting the contact rod, which adjusts the angle between the drill bit and the curved surface. This allows for precise drilling of holes on curved surfaces at different angles at the same drill point, depending on the product assembly requirements. This solves the problem of easily deviating drill holes on curved surfaces and leaving multiple drill points around the hole, reducing labor costs and human factors, minimizing drilling accuracy errors, improving product assembly quality, and reducing product failure rates, thereby increasing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural diagram of the present utility model.
[0017] Figure 2 Schematic diagram of the structure of the substrate.
[0018] Figure 3 Schematic diagram of the structure of the drill sleeve.
[0019] Figure 4 Schematic diagram of the structure of the pull rod.
[0020] Among them, the figure numbers are as follows: 1-base plate, 101-first through hole, 102-second through hole, 103-slideway, 2-drill sleeve, 3-contact rod, 301-contact end, 4-pull rod, 401-threaded area, 402-block, 5-butterfly nut. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.
[0022] On the contrary, this application covers any alternatives, modifications, equivalents, and solutions made within the spirit and scope of this application as defined by the claims. Furthermore, to facilitate a better understanding of this application, certain specific details are described in detail below in the detailed description of this application. Those skilled in the art will be able to fully understand this application without these details.
[0023] Example 1
[0024] A multi-point positioning curved surface hole-making auxiliary tool comprises a base plate 1, a contact rod 3, and a pull rod 4.
[0025] A first through hole 101 is formed in the center of the substrate 1 . A drill sleeve 2 is disposed in the first through hole 101 . When in use, a drill bit is placed in the drill sleeve 2 .
[0026] The substrate 1 is provided with a plurality of second through holes 102 around the center of the substrate 1. The plurality of contact rods 3 are respectively inserted into the second through holes 102 and can move up and down relative to the substrate 1. The number of the second through holes 102 matches the number of the contact rods 3.
[0027] Each contact rod 3 moves independently, adjusting its position to match different curved surfaces. A rubber pad is installed at one end of the contact rod 3, forming a curved contact end 301. The four contact rods can independently follow the shape of the curved surface, allowing the substrate 1 to reach the desired hole-making angle.
[0028] A slideway is provided on the side of the base plate 1 and is perpendicular to the second through hole 102. The slideway is connected to the second through hole 102. The pull rod 4 is arranged in the slideway and can move relative to the slideway to press against the contact rod 3 in the second through hole 102, thereby fixing the contact rod 3 in position.
[0029] Specifically, the pull rod 4 is provided with a threaded area 401, which is threadedly connected to a matching threaded structure, and drives the movement of the pull rod 4 by rotation, and can self-lock when the rotation stops.
[0030] Wherein, the thread structure is arranged on the inner wall of the slideway or is a thread structure.
[0031] As a preferred embodiment, the number of the second through holes 102 and the contact rods 3 can be 3, 4, 5, or 6, preferably 4.
[0032] The base plate 1 is made of 50x50x10 aluminum material to ensure the strength of the main body and reduce the weight of the main body.
[0033] Example 2
[0034] like Figure 1-4 As shown, in this embodiment, the threaded structure is a butterfly nut 5.
[0035] In this embodiment, the tie rod 4 is provided with a guide section with a polygonal cross-section. The slideway matches the shape of the guide section. When the tie rod 4 is in the slideway, turning the butterfly nut 5 prevents the tie rod 4 from rotating and only allows linear movement. When the butterfly nut 5 abuts against the contact rod 3, stopping the turning tightens the butterfly nut 5. This eliminates the need for threading the base plate 1, making fabrication more convenient.
[0036] Example 3
[0037] In this embodiment, each pull rod 4 is used to lock at least two contact rods 3. Specifically, a linear slideway passes through at least two second through holes 102. The outer wall of the pull rod 4 is provided with protruding blocks 402, matching the number of contact rods 3. The protruding blocks 402 are used to press against the two contact rods 3.
[0038] In this embodiment, the shape of the slideway matches the stop blocks 402 and the pull rods 4. One of the contact rods 3 is located between two adjacent stop blocks 402.
[0039] During use, place the drill bit into the drill sleeve 2, place the drill tip against the drill point, adjust the drill bit angle, and drive the substrate 1 and contact rod to form a suitable angle and position. Screw the butterfly nut 5 onto the threaded area 401 of the pull rod 4. By tightening the two butterfly nuts 5, the pull rod 4 slides to one side and presses against the contact rod, thereby fixing the substrate 1 and the contact rod. Hold the substrate 1 by hand and start the air drill to complete the hole making work on the curved surface.
[0040] By adjusting the position of the contact rod, the angle between the drill bit and the curved surface can be adjusted. This allows for different drilling angles at the same drill point on a curved surface, tailored to the product's assembly requirements, enabling precise hole drilling on the surface. This design addresses the issues of easily deviated drilling and the resulting multiple drill points around the hole, reducing labor costs and human error in hole precision, improving product assembly quality, reducing product failure rates, and increasing work efficiency.
[0041] It is worth noting that, based on the above structural design, in order to solve the same technical problem, even if some insubstantial improvements are made on the basis of the present invention, they also fall within the scope of protection of the present invention.
Claims
1. A multi-point positioning curved surface hole making auxiliary tool, characterized in that: Including base plate, contact rod and pull rod; A first through hole is provided at the center of the substrate, and a drill sleeve is provided in the first through hole; a plurality of second through holes are provided on the substrate around the center of the substrate, and a plurality of contact rods are respectively inserted into the second through holes and can move up and down relative to the substrate, and the number of the second through holes matches the number of the contact rods; A slideway is provided on the side of the substrate, which is perpendicular to the second through hole; the slideway is connected to the second through hole; a pull rod is arranged in the slideway, and the pull rod moves relative to the slideway and presses against the contact rod in the second through hole, so that the position of the contact rod is fixed; a threaded area is provided on the pull rod, which is threadedly connected to the matching threaded structure, and the movement of the pull rod is driven by rotation, and can self-lock when it stops rotating.
2. The multi-point positioning curved surface hole making auxiliary tool according to claim 1, characterized in that: The thread structure is arranged on the inner wall of the slideway or is a thread structure.
3. The multi-point positioning curved surface hole making auxiliary tool according to claim 1, characterized in that: The thread structure is a butterfly nut; a guide area is provided on the pull rod, and the cross section of the guide area is polygonal; the shape of the slideway matches that of the guide area.
4. The multi-point positioning curved surface hole making auxiliary tool according to claim 3, characterized in that: Each pull rod is used to press against at least two contact rods; a straight slideway passes through at least two second through holes; the outer wall of the pull rod is provided with protruding blocks matching the number of contact rods pressed against it; the protruding blocks are respectively used to press against the contact rods.
5. A multi-point positioning curved surface hole making auxiliary tool according to any one of claims 1 to 4, characterized in that: There are 4 contact rods.
6. A multi-point positioning curved surface hole making auxiliary tool according to any one of claims 1 to 4, characterized in that: A rubber pad is provided at one end of the contact rod as a contact end with the curved surface; the contact end is an arc surface.