Airplane carbon fiber seat backrest side face punching tool

By designing a drilling fixture that combines a support block and a rotary clamping cylinder, the problems of unstable clamping and low hole accuracy during the drilling process of carbon fiber seat backrests were solved, achieving efficient positioning and clamping, and improving processing accuracy and production efficiency.

CN224255535UActive Publication Date: 2026-05-19JIAXING HESHENG NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAXING HESHENG NEW MATERIAL TECH CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional drilling fixtures suffer from insufficient clamping stability and low clamping efficiency when processing carbon fiber seat backs, leading to workpiece displacement, affecting hole accuracy, and making it difficult to meet the needs of mass production.

Method used

A drilling fixture including a base plate and first and second support mechanisms is designed. It utilizes the combination of first and second rotary clamping cylinders and support blocks to achieve precise positioning through the cooperation of first and second end faces and slots, and quickly clamps the workpiece through the rotary clamping cylinders to ensure drilling accuracy.

Benefits of technology

It achieves precise positioning and rapid clamping of carbon fiber seat backs, improves drilling accuracy and production efficiency, reduces the labor intensity of operators, and is suitable for batch drilling of carbon fiber materials.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224255535U_ABST
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Abstract

The utility model discloses an airplane carbon fiber seat backrest side face punching tool which comprises a bottom plate, a backrest body is arranged at the top of the bottom plate, a first supporting mechanism is arranged at the top of the bottom plate, and a first end face, a second end face and a clamping groove are designed at the top of a first supporting block and the top of a second supporting block. Through cooperation with the limiting effect of a check block, accurate positioning of a backrest body can be achieved, deviation in the drilling process is avoided, the drilling precision is ensured, the backrest body can be rapidly clamped through the rotary downward pressing action of a first rotary clamping air cylinder and a second rotary clamping air cylinder, the clamping time is greatly shortened, the production efficiency is improved, and the device is compact and reasonable in overall structure and convenient to use. The clamping device is simple in structure, stable and reliable in clamping, capable of reducing labor intensity of operators and avoiding the problem that a traditional clamp is tedious in adjustment, especially suitable for batch drilling machining of carbon fiber material backrests, and high in practicability and popularization value.
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Description

Technical Field

[0001] This utility model belongs to the field of drilling tooling technology, and specifically relates to a drilling tooling for the side of an aircraft carbon fiber seat back. Background Technology

[0002] In the field of aerospace manufacturing, lightweight design of aircraft seats is one of the important means to improve fuel efficiency and reduce carbon emissions. Due to its high strength and low density, carbon fiber composite materials are widely used in the manufacture of aircraft seat backs. However, carbon fiber is hard and brittle, and the precision requirements for positioning and clamping are extremely high during the processing, especially when drilling holes on the side.

[0003] Traditional drilling fixtures typically use general-purpose clamps and manual positioning methods, which can easily lead to insufficient clamping stability and low clamping efficiency. During drilling, the workpiece may shift, affecting the hole position accuracy and making it difficult to meet the needs of mass production. To solve the above problems, we provide a drilling fixture for the side of the carbon fiber seat back of an aircraft. Utility Model Content

[0004] The purpose of this utility model is to provide a drilling fixture for the side of a carbon fiber seat backrest for aircraft, in order to solve the problems mentioned in the background art. Traditional drilling fixtures usually use general-purpose clamps and manual positioning methods, which are prone to insufficient clamping stability and low clamping efficiency. During drilling, the workpiece is easily displaced, affecting the hole position accuracy and making it difficult to meet the needs of mass production.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a tooling for drilling holes on the side of an aircraft carbon fiber seat back, including a base plate, a backrest body being provided on the top of the base plate, a first support mechanism being provided on the top of the base plate, a second support mechanism being provided on the top of the base plate, two first rotary clamping cylinders being provided on the top of the first support mechanism, and two second rotary clamping cylinders being provided on the top of the second support mechanism.

[0006] The first support mechanism includes a first support block, the top of the first support block is machined with a first end face that is adapted to the bottom of the backrest body, a first support plate is provided on one side of the first support block, the top of the first support plate is bolted to a first rotary clamping cylinder, a stop block is provided on the top of the first support plate, and a first slot adapted to the backrest body is opened on one side of the stop block.

[0007] The second support mechanism includes a second support block, the top of the second support block having a second end face adapted to the bottom of the backrest body, the top of the second support block having a second slot adapted to the backrest body, and the top of the second support block having a drilled groove adapted to the backrest body.

[0008] Preferably, a first bolt is fitted inside the first support plate, the top of the first bolt is threaded to the stop block, a first mounting groove adapted to the first support plate is opened on one side of the first support block, a second bolt is fitted inside the first support plate, one end of the second bolt is threaded to the first support block, and a first threaded hole adapted to the second bolt is opened on one side of the first support block.

[0009] Preferably, two second support plates are provided on one side of the second support block, the top of the second support plate is bolted to the second rotary clamping cylinder, a second mounting groove adapted to the second support plate is provided on one side of the second support block, a third bolt is sleeved inside the second support plate, one end of the third bolt is threaded to the second support block, and a second threaded hole adapted to the third bolt is provided on one side of the second support block.

[0010] Preferably, the top of the base plate is provided with a first mounting groove that is adapted to the first support block, the bottom of the first support block is sleeved with the first mounting groove, and a fourth bolt is sleeved on the bottom of the base plate, one end of the fourth bolt being threadedly connected to the first support block.

[0011] Preferably, the top of the base plate is provided with a second mounting groove that matches the second support block, the bottom of the second support block is sleeved with the second mounting groove, the bottom of the base plate is sleeved with a fifth bolt, one end of the fifth bolt is threaded to the second support block, and the interior of the base plate has mounting holes.

[0012] In summary, this utility model has the following beneficial effects:

[0013] The device features a first end face, a second end face, and a slot on the top of the first and second support blocks. Combined with the limiting action of the stop block, it can achieve precise positioning of the backrest body, preventing deviation during drilling and ensuring drilling accuracy. The rotating and pressing action of the first and second rotary clamping cylinders can quickly clamp the backrest body, significantly shortening the clamping time and improving production efficiency. The device has a compact and reasonable overall structure, and the clamping is stable and reliable. It reduces the labor intensity of operators and avoids the cumbersome adjustment problems of traditional fixtures. It is especially suitable for batch drilling of carbon fiber backrests and has high practicality and promotion value. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is an exploded view of the structure of this utility model;

[0016] Figure 3This is an exploded view of a partial structure of this utility model;

[0017] Figure 4 This is an exploded view of a partial structure of this utility model.

[0018] Reference numerals: 1. Base plate; 2. Backrest body; 3. First support mechanism; 301. First support block; 302. First end face; 303. First support plate; 304. Stop block; 305. First slot; 306. First bolt; 307. First mounting slot; 308. Second bolt; 309. First threaded hole; 4. Second support mechanism; 401. Second support block; 402. Second end face; 403. Second slot; 404. Drilling slot; 405. Second support plate; 406. Second mounting slot; 407. Third bolt; 408. Second threaded hole; 5. First rotary clamping cylinder; 6. Second rotary clamping cylinder; 7. First assembly slot; 8. Fourth bolt; 9. Second assembly slot; 10. Fifth bolt; 11. Mounting hole. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0020] refer to Figure 1-4 A tooling for drilling holes on the side of an aircraft carbon fiber seat back includes a base plate 1, a backrest body 2 on the top of the base plate 1, a first support mechanism 3 on the top of the base plate 1, a second support mechanism 4 on the top of the base plate 1, two first rotary clamping cylinders 5 on the top of the first support mechanism 3, and two second rotary clamping cylinders 6 on the top of the second support mechanism 4.

[0021] The first support mechanism 3 includes a first support block 301. The top of the first support block 301 is machined with a first end face 302 that is adapted to the bottom of the backrest body 2. A first support plate 303 is provided on one side of the first support block 301. The top of the first support plate 303 is bolted to the first rotary clamping cylinder 5. A stop block 304 is provided on the top of the first support plate 303. A first slot 305 adapted to the backrest body 2 is opened on one side of the stop block 304.

[0022] The second support mechanism 4 includes a second support block 401. The top of the second support block 401 is provided with a second end face 402 that is adapted to the bottom of the backrest body 2. The top of the second support block 401 is provided with a second slot 403 that is adapted to the backrest body 2. The top of the second support block 401 is provided with a drilled slot 404 that is adapted to the backrest body 2.

[0023] refer to Figure 3A first bolt 306 is fitted inside the first support plate 303. The top of the first bolt 306 is threadedly connected to the stop block 304. A first mounting groove 307 adapted to the first support plate 303 is opened on one side of the first support block 301. A second bolt 308 is fitted inside the first support plate 303. One end of the second bolt 308 is threadedly connected to the first support block 301. A first threaded hole 309 adapted to the second bolt 308 is opened on one side of the first support block 301. By setting the first support plate 303, it is convenient to install and support the first rotary clamping cylinder 5.

[0024] refer to Figure 4 Two second support plates 405 are provided on one side of the second support block 401. The top of the second support plate 405 is bolted to the second rotary clamping cylinder 6. A second mounting groove 406 adapted to the second support plate 405 is provided on one side of the second support block 401. A third bolt 407 is sleeved inside the second support plate 405. One end of the third bolt 407 is threaded to the second support block 401. A second threaded hole 408 adapted to the third bolt 407 is provided on one side of the second support block 401. By providing the second support plate 405, it is convenient to install and support the second rotary clamping cylinder 6.

[0025] refer to Figure 2 The top of the base plate 1 is provided with a first mounting groove 7 that is adapted to the first support block 301. The bottom of the first support block 301 is sleeved with the first mounting groove 7. The bottom of the base plate 1 is provided with a fourth bolt 8. One end of the fourth bolt 8 is threadedly connected to the first support block 301. By setting the first mounting groove 7 and the fourth bolt 8, it is easy to install the first support block 301 and the base plate 1.

[0026] refer to Figure 2 The top of the base plate 1 is provided with a second mounting groove 9 that is adapted to the second support block 401. The bottom of the second support block 401 is sleeved with the second mounting groove 9. The bottom of the base plate 1 is provided with a fifth bolt 10. One end of the fifth bolt 10 is threadedly connected to the second support block 401. The interior of the base plate 1 has mounting holes 11. By setting the second mounting groove 9 and the fifth bolt 10, it is easy to install the second support block 401 and the base plate 1.

[0027] Brief description of the usage process: The user can install the base plate 1 with the double-head drilling machine by using the mounting bolts and mounting holes 11. Then, the backrest body 2 is placed on top of the first support block 301 and the second support block 401, so that the top of the first support block 301 is in contact with the bottom of the backrest body 2 through the first end face 302. At the same time, the stop block 304 limits and blocks the backrest body 2 through the first slot 305. Then, the top of the second support block 401 is in contact with the backrest body 2 through the second end face 402 and the second slot 403. Then, the first rotary clamping cylinder 5 and the second rotary clamping cylinder 6 are started to rotate and press down quickly to limit the backrest body 2. Then, the double-head drilling machine is started, and it drills holes on both sides of the backrest body 2 through the drilling slot 404, which can effectively facilitate the quick limiting and clamping of drilling holes on the side of the backrest body 2.

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A tooling for drilling holes on the side of an aircraft carbon fiber seat back, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a backrest body (2), the top of the base plate (1) is provided with a first support mechanism (3), the top of the base plate (1) is provided with a second support mechanism (4), the top of the first support mechanism (3) is provided with two first rotary clamping cylinders (5), and the top of the second support mechanism (4) is provided with two second rotary clamping cylinders (6). The first support mechanism (3) includes a first support block (301), the top of the first support block (301) is machined with a first end face (302) that is adapted to the bottom of the backrest body (2), a first support plate (303) is provided on one side of the first support block (301), the top of the first support plate (303) is bolted to the first rotary clamping cylinder (5), a stop block (304) is provided on the top of the first support plate (303), and a first slot (305) adapted to the backrest body (2) is opened on one side of the stop block (304). The second support mechanism (4) includes a second support block (401), the top of the second support block (401) is provided with a second end face (402) adapted to the bottom of the backrest body (2), the top of the second support block (401) is provided with a second slot (403) adapted to the backrest body (2), and the top of the second support block (401) is provided with a drilled slot (404) adapted to the backrest body (2).

2. The tooling for drilling holes on the side of an aircraft carbon fiber seat back as described in claim 1, characterized in that: The first support plate (303) is fitted with a first bolt (306), the top of the first bolt (306) is threaded to the stop block (304), the first support block (301) has a first mounting groove (307) adapted to the first support plate (303) on one side, the first support plate (303) is fitted with a second bolt (308), one end of the second bolt (308) is threaded to the first support block (301), and the first support block (301) has a first threaded hole (309) adapted to the second bolt (308) on one side.

3. The tooling for drilling holes on the side of an aircraft carbon fiber seat back as described in claim 1, characterized in that: Two second support plates (405) are provided on one side of the second support block (401). The top of the second support plate (405) is bolted to the second rotary clamping cylinder (6). A second mounting groove (406) adapted to the second support plate (405) is opened on one side of the second support block (401). A third bolt (407) is sleeved inside the second support plate (405). One end of the third bolt (407) is threaded to the second support block (401). A second threaded hole (408) adapted to the third bolt (407) is opened on one side of the second support block (401).

4. The fixture for drilling holes on the side of an aircraft carbon fiber seat back as described in claim 1, characterized in that: The top of the base plate (1) is provided with a first assembly groove (7) that is adapted to the first support block (301). The bottom of the first support block (301) is sleeved with the first assembly groove (7). The bottom of the base plate (1) is provided with a fourth bolt (8). One end of the fourth bolt (8) is threadedly connected to the first support block (301).

5. The tooling for drilling holes on the side of an aircraft carbon fiber seat back as described in claim 1, characterized in that: The top of the base plate (1) is provided with a second mounting groove (9) that is adapted to the second support block (401). The bottom of the second support block (401) is sleeved with the second mounting groove (9). The bottom of the base plate (1) is sleeved with a fifth bolt (10). One end of the fifth bolt (10) is threaded to the second support block (401). The interior of the base plate (1) has mounting holes (11).