Silver wire disc pasting and positioning error-preventing tool

Abstract

A silver wire disc pasting and positioning error prevention tool comprises a chuck, a plug block, a hook, a tray assembly, a nylon block and a pressing plate, the plug block is internally clamped at the skylight position of an opening cylinder section of an engine shell, and a threaded hole is formed in the plug block and used for fixing the chuck; the chuck body is of a cylindrical structure and is arranged in a rear opening of an engine shell, and a flange at the edge of the upper end of the chuck body is clamped on the end face of the opening of the engine shell and fixed to a plug block threaded hole through a bolt. The tray assembly comprises a tray, a steel pipe, a positioning plate and a threaded pipe, the tray is welded to one end of the steel pipe, and the threaded pipe is welded to the other end; a central through hole of the positioning plate is sleeved from one end of the threaded pipe and is welded on a boss at the lower end of the threaded pipe; the nylon block is internally clamped in the cylinder of the chuck and is used for ensuring the concentricity of the tray and the shell; the outer edge of the tray is provided with a flange, through holes are distributed in the flange in the circumferential direction, and the fixed ends of the hooks penetrate through the through holes to be connected with the silver wire disc. And the pressing plate covers the upper ends of the chuck and the nylon block and is fixed with the flange of the chuck.

Description

TECHNICAL FIELD

[0001] The utility model relates to a silver wire disc pasting positioning error prevention tool belongs to the engine casing inner surface heat insulation layer forming field. BACKGROUND

[0002] At present, many engines in order to ensure the required pressure and thrust, often in the propellant grain embedded silver wire to improve the burning rate, after the casing inner surface heat insulation layer forming will paste has the silver wire disc of hook fixed in the casing front end, need to ensure that the silver wire disc and casing concentric when pasting, at the same time need to ensure that the hook quadrant position meets the process requirements. The existing silver wire disc pasting positioning process adopts manual positioning mode to ensure the quadrant position of silver wire disc pasting, which is difficult to ensure the accurate silver wire disc pasting positioning, often leads to the deviation between the actual pasting quadrant position and the process requirement quadrant position, and only the silver wire disc can be taken out from the casing for secondary pasting operation, and because the casing structure is slender, the operator is difficult to observe, if the silver wire disc quadrant position is found after the adhesive solidification, the silver wire disc will be damaged when taking out after the adhesive solidification. Therefore, it is urgent to design a silver wire disc pasting positioning error prevention tool to ensure that the silver wire disc quadrant position meets the process requirements and reduces the secondary pasting operation to improve the work efficiency and product quality. UTILITY MODEL CONTENTS

[0003] The technical problem of the utility model is to overcome the defects of the prior art, and provide a silver wire disc pasting positioning error prevention tool for accurate positioning when the silver wire disc is pasted on the inner surface of the engine casing.

[0004] The technical solution of the utility model is a silver wire disc pasting positioning error prevention tool, which comprises a chuck, a plug, a hook, a tray assembly, a nylon block and a pressing plate.

[0005] The plug is clamped in the engine casing opening cylinder segment skylight position, and a threaded hole is formed in the plug for fixing the chuck;

[0006] The chuck body is in a cylindrical structure, the main body part is built in the engine casing rear opening, the upper end edge is provided with a turn-up, the turn-up is clamped on the engine casing opening end face, and the turn-up can cover the skylight position of the plug, a through hole is formed in the corresponding position of the turn-up and the plug threaded hole for fixing the chuck and the plug by using a bolt;

[0007] The tray assembly comprises a tray, a steel pipe, a positioning plate and a threaded pipe, one end of the steel pipe is welded with the tray, and the other end is welded with the threaded pipe; the positioning plate is provided with a through hole in the center, and is sleeved into the threaded pipe from one end and welded on the boss at the lower end of the threaded pipe;

[0008] The nylon block is clamped in the cylinder of the chuck, and a through hole is formed in the center position of the nylon block and inserted into the upper surface of the positioning plate from one end of the threaded pipe, so as to ensure that the tray is concentric with the casing;

[0009] The outer edge of the tray is provided with a flange, and through holes are distributed on the flange in a circumferential direction, and the fixed end of the hook is connected with the silver wire disc through the through holes;

[0010] The pressing plate covers the upper end of the chuck and the nylon block and is fixed with the flange of the chuck.

[0011] Preferably, the inner wall of the chuck is designed with a positioning groove parallel to the axial direction of the chuck, and the position of the positioning groove is consistent with the position required by the quadrant of the silver wire disc.

[0012] Preferably, the horizontal section of the positioning plate is cross-shaped, and the outer surface of the positioning plate is designed with a rectangular protruding structure matched with the through groove in the inner surface of the chuck.

[0013] Preferably, the horizontal section of the nylon block is cross-shaped, and the height of the nylon block is less than the height of the chuck, and when the nylon block is assembled, the upper surface of the nylon block is 10mm±1mm higher than the end surface of the chuck.

[0014] Preferably, the center of the pressing plate is provided with a through hole for penetrating the threaded pipe.

[0015] Preferably, the flange of the chuck is provided with a threaded hole, the diameter of the circular ring where the threaded hole is located is smaller than the diameter of the circular ring where the through hole connected with the plug block is located, the pressing plate is provided with a through hole corresponding to the threaded hole, and the pressing plate is fixed on the chuck through a bolt.

[0016] Preferably, the horizontal section of the plug block is fan-shaped, and each plug block is designed with two threaded holes consistent with the index circle.

[0017] Preferably, the total length of the tray assembly is greater than the opening depth of the engine shell.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] Based on the error prevention tool, the position of the silver wire disc quadrant is ensured to meet the process requirements, the positioning groove is designed in the inner surface of the chuck, the position of the positioning groove is consistent with the position of the quadrant required by the process, the protrusion is designed on the outer surface of the positioning plate, the recess in the inner surface of the chuck is matched with the protrusion on the outer surface of the positioning plate during installation, so that the position of the silver wire disc quadrant is ensured to meet the process requirements, the influence of manual operation on the process quality of the silver wire disc adhesion is avoided, the positioning precision of the silver wire disc adhesion is further improved, the work efficiency is effectively improved, and the secondary adhesion positioning operation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a silver wire disc adhesion positioning error prevention tool assembly schematic view of the utility model;

[0021] Figure 2 It is a chuck structure schematic view of the utility model;

[0022] Figure 3 This is a schematic diagram of the plug structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the tray assembly structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the nylon block structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the pressure plate structure of this utility model. Detailed Implementation

[0026] This utility model relates to a silver wire disc adhesive positioning and error-prevention tooling, such as... Figure 1 As shown, it includes: chuck 1, stopper block 2, hook 4, tray assembly 5, nylon block 6, and pressure plate 7, wherein:

[0027] The plug 2 is inserted into the sunroof position of the opening section of the engine housing, and has a threaded hole for fixing the chuck 1;

[0028] like Figure 2 As shown, the main body of the chuck 1 is a cylindrical structure. The main body is built into the rear opening 9 of the engine housing. A flange is provided on the upper edge. The flange is stuck on the end face of the opening of the engine housing and can cover the sunroof position where the plug 1 is located. A through hole is provided at the position corresponding to the threaded hole of the plug 2, which is used to fix the chuck 1 and the plug 2 with bolts.

[0029] like Figure 4 As shown, the pallet assembly 5 includes a pallet 101, a steel pipe 102, a positioning plate 103, and a threaded pipe 104. The pallet 101 is welded to one end of the steel pipe 102, and the threaded pipe 104 is welded to the other end. The positioning plate 103 has a through hole in the center, which is inserted from the end where the threaded pipe 104 is located, and is welded to the boss at the lower end of the threaded pipe 104.

[0030] The nylon block 6 is inserted into the cylinder of the chuck 1, and a through hole is provided at its center. It is inserted from one end of the threaded tube 104 to the upper surface of the positioning plate 103 to ensure that the tray 101 is concentric with the shell.

[0031] The outer edge of the tray 101 is provided with a flange, and through holes are distributed circumferentially along the upper edge of the flange. The fixing end of the hook 4 passes through the through hole and connects to the silver wire tray.

[0032] The pressure plate 7 covers the upper end of the chuck 2 and the nylon block 6, and is fixed to the flange of the chuck 2.

[0033] The inner wall of the chuck 1 is designed with a positioning groove parallel to the axial direction of the chuck 1, and the position of the positioning groove is consistent with the position required for the silver wire disc to be pasted in the quadrant.

[0034] The horizontal section of the positioning plate 103 is cross-shaped, and the outer surface is designed with rectangular convex structures to match the inner surface through slots of the chuck 1.

[0035] As shown in Figure 5 , the horizontal section of the nylon block 6 is cross-shaped, and the height is less than the height of the chuck 1. When the nylon block 6 is assembled, the upper surface is 10 mm ± 1 mm higher than the end surface of the chuck 1.

[0036] The center of the pressing plate 7 is provided with a through hole for passing through the threaded pipe 104.

[0037] The flange of the chuck 2 is provided with a threaded hole, and the diameter of the circular ring of the threaded hole is less than the diameter of the circular ring of the through hole connected with the plug block 1. The pressing plate 7 is provided with a through hole corresponding to the threaded hole, which is fixed on the chuck 2 by bolts, as shown in Figure 1 and Figure 6 .

[0038] As shown in Figure 3 , the horizontal section of the plug block 2 is fan-shaped, and each plug block 2 is designed with two threaded holes consistent with the index circle.

[0039] The total length of the steel pipe 102 and the threaded pipe 104 in the tray assembly 5 is greater than the opening depth of the engine shell.

[0040] Embodiment:

[0041] The utility model discloses a silver silk disc pasting positioning error prevention tool, to solve the problem of silver silk disc image positioning inaccuracy. The utility model provides the following technical scheme: a silver silk disc pasting positioning error prevention tool, mainly includes chuck 1, plug block 2, hook 4, tray assembly 5, nylon block 6, pressing plate 7. The chuck 1 is clamped in the engine casing rear opening, and the chuck 1 length is about 250mm, and the inner surface is designed with the positioning slot of width 2.5mm, height 2.5mm, and the positioning slot image position is consistent with the process requirement image position;Plug block 2 is matched with engine casing skylight, and the number of plug block 2 is consistent with the number of engine casing skylight, and there are two M10mm threaded holes in the end face of plug block 2, and bolt 3 (hexagonal head bolt-full thread M10x60mm) is used to connect chuck 1 and plug block 2, can chuck 1 is fixed in the inner surface of engine casing opening;Hook 4 is installed on the end face of matched silver silk disc 11, is used for hanging silver silk in charging process, and the lower end of hook 4 is designed as M3mm external thread, is matched with the internal thread of silver silk disc end face, and the number of hook 4 is consistent with the number of internal thread hole in the end face of silver silk disc;Tray assembly 5 is welded by tray 101, steel pipe 102, positioning plate 103, threaded tube 104 four parts, is used to deliver silver silk disc from casing rear opening to casing front head 10;The end face of tray 101 is designed with six U-shaped through holes of width 10mm, so that the matched silver silk disc with hook 4 is clamped on the outer surface of tray 101, and the number of U-shaped through holes is consistent with the number of hook 4;The positioning plate 103 is designed with the rectangular projection of width 2mm, height 2mm, thickness 6mm, is matched with the inner surface through slot of chuck 1, is used for silver silk disc pasting image positioning accuracy;When welding, the positioning plate 103 outer surface protrusion and tray 101 one U-shaped through hole must be opposite;The length of nylon block 6 is about 215mm, and the inner diameter of chuck 1 is clamped, and the outer diameter of threaded tube 104 outer surface of tray assembly 5 is clamped, for guaranteeing that the concentricity of tray assembly and casing is consistent;The pressing plate 7 is clamped on the outer surface of nylon block 6, is used for guaranteeing that silver silk disc and casing front head are closely combined, and the end face of pressing plate 7 is designed with four Φ12mm through holes, and bolt 8 (hexagonal head bolt-full thread M10x35mm) is used to connect pressing plate 7 and chuck 1, can the pressure of casing front head silver silk disc is added.Compared with the prior art, the utility model discloses based on the error-proof tool to guarantee that the quadrant position of silver wire disc meets the technological requirement, the positioning through groove with the width 2.5mm, the height 2.5mm is designed on the inner surface of chuck, the positioning through groove position is consistent with the quadrant position of technological requirement, the convex with the width 2.5mm, the height 2.5mm, the thickness 6mm is designed on the outer surface of positioning plate, the inner surface recess of chuck is matched with the convex of positioning plate outer surface during installation to guarantee that silver wire disc pasting quadrant meets the technological requirement, the influence of manual operation on silver wire disc pasting technological quality is effectively avoided, further improve the precision of silver wire disc pasting positioning, effectively improve work efficiency, reduce secondary pasting positioning operation.

[0042] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model, and the embodiments are only used for explaining the utility model and do not constitute the limitation on the protection scope of the utility model.

[0043] Step one, install chuck 1;

[0044] The chuck 1 is clamped in the rear opening of the engine shell, and the end surface quadrant mark of the chuck 1 is opposite the quadrant mark of the shell during installation to ensure that the inner surface through groove position of the chuck 1 is consistent with the silver wire disc pasting quadrant position required by the process document;

[0045] Step two, install plug block 2;

[0046] The plug block 2 is clamped in the rear opening skylight position of the shell, and the bolt 3 (hexagonal head bolt-full thread M10x60mm) is used to connect the chuck 1 and the plug block 2;

[0047] Step three, install hook 4;

[0048] The hook 4 is screwed into the matching part silver wire disc 11 end surface threaded hole, and the silver wire disc and the shell front head 10 bonding surface are smeared with appropriate adhesive;

[0049] Step four, install tray assembly 5;

[0050] The silver wire disc smeared with adhesive is clamped outside the tray 101 outer surface, and the tray assembly 5 is installed from the rear opening of the engine to the shell front head, and the positioning plate 103 outer surface convex is embedded in the chuck 1 inner surface through groove during installation;

[0051] Step five, install nylon block 6;

[0052] The nylon block 6 is clamped in the inner surface of the chuck 1, and is installed on the upper surface of the positioning plate 103 through the threaded tube 104 one end.

[0053] Step six, install pressing plate 7;

[0054] The pressing plate 7 is externally clamped on the outer surface of the nylon block 6, and the chuck 1 and the pressing plate 7 are connected by using the bolt 8 (hexagonal head bolt-full thread M10*35mm), and the bolt is fastened to press the tray assembly, and the adhesive enters the curing operation.

[0055] The contents not described in detail in the utility model specification belong to the prior art known to the person skilled in the art.

Claims

1. A silver wire coil sticking positioning error prevention tool, characterized in that The application relates to a device for fixing a silver wire disc in an engine shell, which comprises a chuck (1), a plug (2), a hook (4), a tray assembly (5), a nylon block (6) and a pressing plate (7), wherein: the plug (2) is clamped in a cylinder segment skylight position of an engine shell opening, and threaded holes are arranged on the plug (2) for fixing the chuck (1); the main body of the chuck (1) is in a cylindrical structure, the main body is arranged in a rear opening (9) of the engine shell, a flange is arranged on the upper end edge of the main body, the flange is clamped on the opening end surface of the engine shell, and the flange can cover the skylight position of the plug (2); a through hole is arranged on the flange at a position corresponding to the threaded hole of the plug (2), and the chuck (1) and the plug (2) are fixed by using a bolt; the tray assembly (5) comprises a tray (101), a steel pipe (102), a positioning plate (103) and a threaded pipe (104), wherein one end of the steel pipe (102) is welded with the tray (101), and the other end of the steel pipe (102) is welded with the threaded pipe (104); the positioning plate (103) is provided with a through hole in the center, and is sleeved on the threaded pipe (104) from one end of the threaded pipe (104) and welded on a boss at the lower end of the threaded pipe (104); the nylon block (6) is clamped in the cylinder of the chuck (1), and a through hole is arranged in the center of the nylon block (6) and penetrates the nylon block (6) from one end of the threaded pipe (104) to the upper surface of the positioning plate (103), so as to ensure that the tray (101) is concentric with the shell; a flange is arranged on the outer edge of the tray (101), through holes are arranged on the flange in a circumferential direction, and the fixed end of the hook (4) penetrates the through holes and is connected with the silver wire disc; the pressing plate (7) is arranged on the upper end of the chuck (1) and the nylon block (6) and is fixed with the flange of the chuck (1). The inner wall of the chuck (1) is designed with a positioning groove parallel to the axial direction of the chuck (1), and the position of the positioning groove is consistent with the position required by the silver wire disc sticking quadrant. The horizontal section of the positioning plate (103) is in a cross shape, and a rectangular raised structure is arranged on the outer surface of the positioning plate (103) and matched with the inner surface groove of the chuck (1). The horizontal section of the nylon block (6) is in a cross shape, the height of the nylon block (6) is less than the height of the chuck (1), and the upper surface of the nylon block (6) is 10mm+ / -1mm higher than the end surface of the chuck (1) after the nylon block (6) is assembled. A through hole is arranged in the center of the pressing plate (7) and penetrates the threaded pipe (104). Threaded holes are arranged on the flange of the chuck (1), the diameter of a circular ring of the threaded holes is less than the diameter of a circular ring of the through holes used for connecting the plug (2), a through hole corresponding to the threaded hole is arranged on the pressing plate (7), and the pressing plate (7) is fixed on the chuck (1) by using a bolt. The horizontal section of the plug (2) is in a fan shape, and two thread holes consistent with a division circle are arranged on each plug (2). The total length of the tray assembly (5) is greater than the opening depth of the engine shell.

2. The silver wire disc sticking positioning error prevention tooling according to claim 1, characterized in that: ​ 3. The silver wire disc pasting positioning error prevention tooling of claim 2, wherein: ​ 4. The silver wire disc sticking positioning error prevention tooling of claim 1, wherein: ​ 5. The silver wire spool sticking positioning error prevention tooling of claim 1, wherein: ​ 6. The silver wire spool sticking positioning error prevention tooling of claim 1, wherein: ​ 7. The silver wire spool sticking positioning error prevention tooling of claim 1, wherein: ​ 8. The silver wire spool sticking positioning error prevention tooling of claim 1, wherein: ​

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