Protective tool for spraying large ring part on front section of fan casing and use method of protective tool

Abstract

The invention discloses a protection tool for spraying a fan casing front section large ring piece and a using method of the protection tool, and belongs to the technical field of spraying protection tools. A mandrel is fixedly installed in a positioning groove in the upper end of the base plate, an annular baffle is placed at the upper end of the mandrel, the upper end of the baffle is fixedly connected with a pressing plate, and the pressing plate is fixedly connected with the base plate. The edge of the upper surface of the base plate is fixedly connected with the lower end of an annular supporting sleeve, the upper end of the supporting sleeve is fixedly connected with the lower end of a pressing sleeve, and the inner end of the pressing sleeve is fixedly connected with the upper end of a spacer sleeve. The split type baffle design is adopted, radial movement can be achieved so that a non-spraying area can be fully protected, meanwhile, the baffle is detachable, and mounting and dismounting of a product are facilitated; in addition, the handle facilitates taking and placing of the tool with the overall heavy weight, the problems that in the prior art, spraying protection is insufficient, and operation is complex are effectively solved, and the machining efficiency and the product quality are improved.

Description

Technical Field

[0001] The invention relates to a protective tool for spraying a large-scale ring-like part at the front section of a fan casing and a use method thereof, belonging to the technical field of spraying protective tooling. Background Art

[0002] In the field of aviation manufacturing, spraying is an indispensable part of the final processing stage of the front section of the fan case. It can provide the necessary protective layer and enhance the durability and adaptability of the parts. Usually, spraying is only performed on specific areas of the parts, while the remaining non-sprayed surfaces need to be properly protected to avoid unnecessary contamination or damage during the spraying process. This requirement is crucial to ensure the overall quality of the parts and the smooth progress of subsequent assembly.

[0003] However, current spraying equipment lacks an effective mechanism to properly protect the non-sprayed surface of the front section of the fan case. This not only increases the complexity and uncertainty of the processing, but may also increase the product failure rate due to accidental damage or contamination of the non-sprayed area, thus affecting the efficiency and cost control of the entire production line. Summary of the invention

[0004] In order to solve the problems existing in the background technology, the present invention provides a protective tooling for spraying large ring-like parts at the front section of a fan casing and a method of using the same.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a protective tooling for spraying large ring-like parts at the front section of a fan casing, comprising a chassis, a pressure plate, a spindle, a support sleeve, a stop sleeve, a press sleeve and a baffle; a spindle is fixedly installed in a positioning groove at the upper end of the chassis, an annular baffle is placed on the upper end of the spindle, the upper end of the baffle is fixedly connected to the pressure plate, and the pressure plate is fixedly connected to the chassis; the edge of the upper surface of the chassis is fixedly connected to the lower end of the annular support sleeve, the upper end of the support sleeve is fixedly connected to the lower end of the press sleeve, and the inner end of the press sleeve is fixedly connected to the upper end of the stop sleeve.

[0006] The baffle includes a plurality of closed and enclosed arc-shaped plates.

[0007] Each of the arc-shaped plates is slidably and position-limitingly connected to the pressing plate.

[0008] A plurality of middle supporting columns are inserted between the pressure plate and the chassis through interference.

[0009] A plurality of bottom supporting columns are interference-inserted at the lower end of the chassis.

[0010] A handle is provided at the upper end of the pressing plate.

[0011] A handle is provided on the side wall of the pressing sleeve.

[0012] A method for using protective tooling for spraying large ring-like parts at the front section of a fan casing of the present invention comprises the following steps:

[0013] S1: Place the spindle in the positioning groove of the chassis and fix it;

[0014] S2: Position the front section of the fan casing on the spindle and chassis;

[0015] S3: Install the pressure plate and baffle;

[0016] S4: adjusting the baffles to abut against the inner wall of the front section of the fan casing and then locking the baffles;

[0017] S5: Fix the support sleeve on the chassis;

[0018] S6: Fix the pressing sleeve on the supporting sleeve;

[0019] S7: Fix the baffle sleeve on the pressing sleeve, and protect the non-spraying area of ​​the front section of the fan casing through the baffle sleeve and the baffle plate;

[0020] S8: The spraying area H is sprayed.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention adopts a split baffle design, which can move radially to fully protect the non-spraying area. At the same time, the baffle is detachable to facilitate the installation and disassembly of the product. In addition, the handle facilitates the removal and placement of tooling with a larger overall weight, effectively solving the problems of insufficient spray protection and complex operation in the prior art, and improving processing efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 yes Figure 1 A cross-sectional view of

[0025] Figure 3 It is a schematic diagram of the chassis structure;

[0026] Figure 4 yes Figure 3 A cross-sectional view of

[0027] Figure 5 It is a structural schematic diagram of the pressure plate;

[0028] Figure 6 yes Figure 5 A cross-sectional view of

[0029] Figure 7 It is a schematic diagram of the structure of the baffle;

[0030] Figure 8 yes Figure 7 A cross-sectional view of

[0031] Fig. 9 It is a schematic diagram of the structure of the spindle. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] A protective tooling for spraying large-scale annular parts at the front section of a fan casing, comprising a chassis 1, a pressure plate 2, a spindle 5, a support sleeve 11, a stop sleeve 14, a pressing sleeve 16 and a baffle 18; the spindle 5 is fixedly installed in the positioning groove 101 at the upper end of the chassis 1 by corresponding screws and washers, and the high-precision shaft diameter of the spindle 5 and the high-precision surface of the chassis 1 play a centering and positioning role for the front section product of the fan casing; an annular baffle 18 is placed on the upper end of the spindle 5, and the upper end of the baffle 18 is fixedly connected to the pressure plate 2 by corresponding screws and washers, and the pressure plate 2 is fixedly connected to the chassis 1 by corresponding screws and washers; the edge of the upper surface of the chassis 1 is fixedly connected to the lower end of the annular support sleeve 11 by corresponding screws and washers, the upper end of the support sleeve 11 is fixedly connected to the lower end of the pressing sleeve 16 by corresponding screws and washers, and the inner end of the pressing sleeve 16 is fixedly connected to the upper end of the stop sleeve 14 by corresponding screws and washers.

[0034] The baffle 18 includes a plurality of closed arc-shaped plates, which are convenient for installation and disassembly.

[0035] Each of the arc-shaped plates is connected to the pressure plate 2 by sliding and limiting through a long slot hole. The baffle 18 can move radially after installation, thereby fully protecting the non-spraying area. After the baffle 18 fully fits the front section of the fan casing product, tighten the corresponding screws set in the long slot hole to fix the position of the baffle 18.

[0036] A plurality of middle support columns 20 evenly distributed along the circumference of the chassis 1 are inserted between the pressing plate 2 and the chassis 1 to support the pressing plate 2. The middle support columns 20 are kept at the same height as the spindle 5, which is convenient for the placement of subsequent mechanisms.

[0037] The lower end of the chassis 1 is interference-fitted with a plurality of bottom support columns 21 evenly distributed along the circumference of the chassis 1 , so as to facilitate the taking of the entire tooling.

[0038] A handle 8 is provided at the upper end of the pressing plate 2 to facilitate installation and removal of the pressing plate 2.

[0039] The side wall of the pressing sleeve 16 is provided with a handle 8 to facilitate the installation and removal of the pressing sleeve 16 and the stopper sleeve 14 assembly.

[0040] A method for using protective tooling for spraying large ring-like parts at the front section of a fan casing of the present invention comprises the following steps:

[0041] S1: Place the spindle 5 in the positioning groove 101 of the chassis 1 and fix it with corresponding screws and washers;

[0042] S2: Position the front section of the fan casing on the spindle 5 and the chassis 1;

[0043] S3: Install the pressure plate 2 and the baffle 18;

[0044] S4: adjusting the baffles 18 to abut against the inner side wall of the front section of the fan casing and locking the baffles 18;

[0045] S5: Fix the support sleeve 11 to the chassis 1 through corresponding screws and washers;

[0046] S6: Fix the pressing sleeve 16 to the supporting sleeve 11 through corresponding screws and washers;

[0047] S7: Fix the stopper sleeve 14 to the pressing sleeve 16 by corresponding screws and washers, and protect the non-spraying area of ​​the front section of the fan casing by the stopper sleeve 14 and the baffle plate 18;

[0048] S8: The spraying area H is sprayed.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A protective tool for spraying large ring-like parts at the front section of a fan casing, characterized in that: The invention comprises a chassis (1), a pressure plate (2), a spindle (5), a support sleeve (11), a stop sleeve (14), a pressing sleeve (16) and a stop plate (18); the spindle (5) is fixedly installed in a positioning groove (101) at the upper end of the chassis (1); an annular stop plate (18) is placed on the upper end of the spindle (5); the upper end of the stop plate (18) is fixedly connected to the pressure plate (2); the pressure plate (2) is fixedly connected to the chassis (1); the edge of the upper surface of the chassis (1) is fixedly connected to the lower end of the annular support sleeve (11); the upper end of the support sleeve (11) is fixedly connected to the lower end of the pressing sleeve (16); the inner end of the pressing sleeve (16) is fixedly connected to the upper end of the stop sleeve (14).

2. The protective tooling for spraying large ring-like parts at the front section of a fan casing according to claim 1 is characterized in that: The baffle (18) comprises a plurality of closed and enclosed arc-shaped plates.

3. The protective tooling for spraying large ring-like parts at the front section of a fan casing according to claim 2 is characterized in that: Each of the arc-shaped plates is connected to the pressing plate (2) in a sliding and limiting manner.

4. The protective tooling for spraying large ring-like parts at the front section of a fan casing according to claim 1 is characterized in that: A plurality of middle support columns (20) are interference-connected between the pressure plate (2) and the chassis (1).

5. The protective tooling for spraying large ring-like parts at the front section of a fan casing according to claim 1 is characterized in that: A plurality of bottom support columns (21) are interference-connected and inserted at the lower end of the chassis (1).

6. The protective tooling for spraying large ring-like parts at the front section of a fan casing according to claim 1 is characterized in that: A handle (8) is provided at the upper end of the pressing plate (2).

7. The protective tooling for spraying large ring-like parts at the front section of a fan casing according to claim 6 is characterized by: A handle (8) is provided on the side wall of the pressing sleeve (16).

8. A method for using the protective tooling for spraying large ring-like parts at the front section of a fan casing according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1: placing the spindle (5) in the positioning groove (101) of the chassis (1) and fixing it; S2: Position the front section of the fan casing on the spindle (5) and the chassis (1); S3: Install the pressure plate (2) and the baffle (18); S4: After the baffles (18) are adjusted to abut against the inner side wall of the front section of the fan casing, the position of the baffles (18) is locked; S5: Fixing the support sleeve (11) on the chassis (1); S6: Fixing the pressing sleeve (16) on the supporting sleeve (11); S7: Fix the stopper sleeve (14) on the pressing sleeve (16), and protect the non-spraying area of ​​the front section of the fan casing by the stopper sleeve (14) and the baffle plate (18); S8: The spraying area H is sprayed.

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