A sleeve type part outer expansion type sealing port shaping tool

Abstract

A sleeve part outer expansion type sealing port shaping tool, comprising a spinning body, a clamping sleeve, a ball, a roller, a blocking sleeve, a compression sleeve and an outer sleeve ring; the outer side wall of the spinning body is provided with an annular pressure receiving surface and an obliquely arranged ball and roller containing groove, the oblique angle of the ball and roller containing groove is consistent with the oblique angle of the inner wall surface of the opening on the sleeve part; the clamping sleeve is composed of two parts, the two parts are connected into a circular sleeve through a pin, and an outer thread is arranged on the outer side wall of the clamping sleeve; the blocking sleeve is fixed to the bottom of the inner wall of the spinning body, and the outer wall of the blocking sleeve closes the inner side end of the ball and roller containing groove; the compression sleeve is sleeved on the upper part of the clamping sleeve, an annular compression surface is arranged at the top end of the compression sleeve, and an inner thread matched with the outer thread of the clamping sleeve is arranged on the inner side wall of the compression sleeve; and the outer sleeve ring is sleeved on the lower part of the clamping sleeve. The present application can complete the roundness adjustment operation on the basis of meeting the size requirements of the workpiece, and ensures the sealing performance of the assembly of the sleeve part and other parts.

Description

Technical Field

[0001] This invention relates to a pipe end shaping device, and more particularly to a tool for shaping the externally expanded sealing port of sleeve-type parts. Background Technology

[0002] As attached Figure 1 As shown, a sleeve-like part 1 fixed to the fuselage of an aircraft has a flared, outwardly expanding opening 1-1. To ensure sealing performance after assembly with other components at the opening, a sealing ring assembly groove 1-2 is provided on the inner wall of the opening 1-1. According to the design drawings of this sleeve-like part 1, the inclination angle α of the inner wall surface of the opening 1-1 must be 15 º±30' and the inclination angle β of the outer wall surface must be 20 º±20'. The surface roughness of the inner wall surface of the opening 1-1 is specified as follows: .

[0003] During major overhauls of an aircraft, it is necessary to inspect the attached parts. Figure 1 The roundness of the opening 1-1 of the sleeve-type part 1 shown is adjusted to achieve a complete fit between the sealing ring and the mating parts. However, since one end of the sleeve-type part 1 is fixed to the fuselage of the aircraft and the opening at the other end is a flared structure, it is difficult to complete the roundness adjustment operation while meeting the above-mentioned dimensional requirements using ordinary tools. Therefore, it is necessary to design a special shaping device for the flared sealing opening of the sleeve-type part to ensure the sealing performance of the sleeve-type part 1 after it is assembled with other parts. Summary of the Invention

[0004] This invention provides a shaping tool for the externally expanded sealing opening of sleeve-type parts. It aims to adjust the roundness of the sleeve-type parts by designing the structure of the mating spinning body, ferrule, ball, roller and clamping sleeve, etc., while meeting the externally expanded opening size requirements of the sleeve-type parts, so as to ensure the sealing performance of the sleeve-type parts after assembly with other parts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tool for shaping an externally flared sealing port of a sleeve-type part includes a spinning body, a ferrule, balls, rollers, a retaining sleeve, a clamping sleeve, and an outer ring. The spinning body has a stepped sleeve structure with an annular bearing surface and inclined ball and roller receiving grooves on its outer wall. The inclination angle of the ball and roller receiving grooves is consistent with the inclination angle of the inner wall surface of the opening on the sleeve-type part. The ferrule has a split structure, consisting of left and right parts, which are connected by a pin to form a circular sleeve. The inner wall of the circular sleeve... It has a stepped hole structure, with the lower part fitted over the sleeve-like part to be shaped and the upper part fitted over the spinning body. External threads are provided on the outer wall of the ferrule. The balls and rollers are placed in the ball and roller receiving grooves of the spinning body. The retaining sleeve is fixed to the bottom of the inner wall of the spinning body, and its outer wall seals the inner end of the ball and roller receiving groove. The clamping sleeve is fitted over the upper part of the ferrule, with an annular clamping surface at its top. The inner wall of the clamping sleeve has internal threads that mate with the external threads of the ferrule. The outer ring is fitted over the lower part of the ferrule.

[0007] The aforementioned sleeve-type part external expansion sealing port shaping tool has an inclined annular transition surface at the connection between the large-diameter end and the small-diameter end of the stepped hole on the inner side wall of the ferrule. The inclination angle of the annular transition surface is consistent with the inclination angle of the outer wall surface of the opening of the sleeve-type part to be adjusted.

[0008] The aforementioned sleeve-type part external expansion sealing port shaping tool is equipped with a pressure bearing between the annular pressing surface of the pressing sleeve and the annular bearing surface of the spinning body.

[0009] The above-mentioned sleeve-type parts external expansion sealing port shaping tool is also provided with a clamping sleeve rotating handle. The clamping sleeve rotating handle is fitted outside the spinning body in a clearance fit manner and is fixedly assembled with the annular clamping surface at the top of the clamping sleeve by screws.

[0010] The above-mentioned sleeve-type parts external expansion sealing port shaping tool is also provided with a ferrule positioning handle, and a positioning handle mounting hole is provided on the outer wall of the ferrule. One end of the ferrule positioning handle is installed in the positioning handle mounting hole and fixedly assembled by threaded connection.

[0011] The aforementioned sleeve-type parts externally flared sealing port shaping tool has a spinning operation handle installed on the upper part of the spinning body.

[0012] The aforementioned sleeve-type parts externally flared sealing port shaping tool has anti-slip textures on the outer walls of the clamping sleeve and the ferrule positioning handle.

[0013] The aforementioned sleeve-type parts externally expanded sealing port shaping tool uses high-carbon chromium bearing steel of grade GCr15 for its ball bearings and rollers.

[0014] This invention provides a tool for shaping the externally flared sealing opening of sleeve-type parts. It uses a spinning body and a retaining sleeve to position and fix the inner wall of the sleeve-type part to be adjusted, and a split-structure ferrule to position and fix the outer wall of the sleeve-type part to be adjusted. Then, a clamping sleeve, a pressure bearing, and the ferrule work together to press the balls and rollers arranged in the ball and roller receiving grooves of the spinning body, making the rollers fit against the inner wall of the opening of the sleeve-type part to be adjusted. The spinning body is then driven to rotate by the spinning operation handle, causing the rollers to spin and shape the inner wall of the opening of the sleeve-type part to be adjusted. Since the inclination angle of the ball and roller receiving grooves is consistent with the inclination angle of the inner wall surface of the opening of the sleeve-type part, and the inclination angle of the annular transition surface of the stepped hole on the inner wall of the ferrule is consistent with the inclination angle of the outer wall surface of the opening of the sleeve-type part to be adjusted, the roundness adjustment operation is completed while meeting the dimensional requirements of the externally flared opening of the sleeve-type part, thus achieving the purpose of ensuring the sealing performance of the sleeve-type part after assembly with other parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a sleeve-type part;

[0016] Figure 2 This is a schematic diagram of the shaping tool for the externally expanded sealing port of the sleeve-type parts described in this invention;

[0017] Figure 3 yes Figure 2 Exploded structure diagram;

[0018] Figure 4 This is a schematic diagram of a spun body structure;

[0019] Figure 5 This is a top view of the rotating handle of the clamping sleeve;

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the ferrule;

[0021] Figure 7 yes Figure 6 Top view of the card sleeve;

[0022] Figure 8 This is a schematic diagram of the compression sleeve structure.

[0023] Explanation of each label in the diagram:

[0024] 1 is a sleeve-type part, 1-1 is an opening, and 1-2 is a sealing ring assembly groove;

[0025] 2 is the spinning body, 2-1 is the spinning operation handle mounting hole, 2-2 is the annular pressure bearing surface, 2-3 is the ball and roller receiving groove, and 2-4 is the threaded hole;

[0026] 3 represents a screw;

[0027] 4 is the rotating handle for the clamping sleeve;

[0028] 5 represents a pressure bearing;

[0029] 6 is the ferrule, 6-1 is the external thread, 6-2 is the mounting hole for the positioning handle, 6-3 is the assembly hole for the pin, and 6-4 is the annular transition surface;

[0030] 7 is the ferrule positioning handle;

[0031] 8 represents rollers;

[0032] 9 represents ball bearings;

[0033] 10 is a gear sleeve;

[0034] 11 is a fixing screw;

[0035] 12 is the clamping sleeve, 12-1 is the annular clamping surface, and 12-2 is the internal thread;

[0036] 13 is a pin;

[0037] 14 is the outer ring;

[0038] 15 is the spinning operation handle. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] See Figure 2. Figure 3 The sleeve-type part external expansion sealing port shaping tool of the present invention includes a spinning body 2, a ferrule 6, a ball bearing 9, a roller 8, a retaining sleeve 10, a clamping sleeve 12, and an outer ring 14; the lower end of the spinning body 2 is placed inside the opening 1-1 on the sleeve-type part 1 to be adjusted, and a ball bearing and roller receiving groove 2-3 is provided at the lower part of the spinning body 2. The spinning body is also fixedly assembled with the retaining sleeve 10 by fixing screws, and the retaining sleeve 10 closes one end of the ball bearing and roller receiving groove 2-3; The ball bearings 9 and rollers 8 are placed in the ball bearing and roller receiving grooves 2-3; the ferrule 6 is a split structure, consisting of two semi-circular sleeves, which are fitted onto the outside of the opening 1-1 on the sleeve-type part 1 to be adjusted, and the inner wall of the ferrule 6 axially positions the outer end of the roller 8; the clamping sleeve 12 is fitted onto the outside of the spinning sleeve 2, and its inner wall is threaded to the outer wall of the ferrule 6; the outer ring 14 is fitted onto the outside of the bottom of the ferrule 6.

[0041] See Figure 2 , Figure 3 , Figure 4The sleeve-type part external expansion sealing port shaping tool of the present invention has a spinning body 2 as a stepped sleeve structure. It has an annular bearing surface 2-2 on its outer side wall and a ball and roller receiving groove 2-3 located at its lower part is inclined. The inclination angle of the ball and roller receiving groove 2-3 is consistent with the inclination angle α of the inner wall surface of the opening 1-1 on the sleeve-type part 1. A threaded hole 2-4 for fixing and installing the retaining sleeve 10 is provided on the inner side wall of the spinning body 2. The retaining sleeve 10 is fixed on the spinning body 2 by fitting the fixing screw 11 with the threaded hole 2-4.

[0042] See Figure 2 , Figure 3 , Figure 5 The sleeve-type part external expansion sealing port shaping tool of the present invention is further provided with a clamping sleeve rotating handle 4. The clamping sleeve rotating handle 4 has a left-right symmetrical structure, with an assembly hole 4-1 and a screw fixing hole 4-2 in the middle position. The assembly hole 4-1 is fitted on the outside of the spinning body 2 with a clearance fit. The screw fixing hole 4-2 cooperates with the screw 3 to install the clamping sleeve rotating handle 4 on the clamping sleeve 12.

[0043] See Figure 2 , Figure 3 , Figure 6 , Figure 7 The sleeve-type part external expansion sealing port shaping tool of the present invention has a left and right part of the ferrule 6 connected by a pin 13 installed in the pin assembly hole 6-3, thereby forming a detachable circular sleeve. The inner side wall of the circular sleeve has a stepped hole structure. The connection part between the large diameter end and the small diameter end of the stepped hole is an inclined annular transition surface 6-4. The inclination angle of the annular transition surface 6-4 is consistent with the inclination angle β of the outer wall surface of the opening 1-1 on the sleeve-type part 1 to be adjusted. The small diameter end of the stepped hole is fitted outside the sleeve-type part 1 to be shaped, and the large diameter end of the stepped hole is fitted outside the spinning body 2. In addition, the present invention has an outer ring 14 fitted on the outer side wall of the bottom of the ferrule 6, and a positioning handle mounting hole 6-2 through the outer ring 14 is opened on the ferrule 6. The ferrule positioning handle 7 is installed in the positioning handle mounting hole 6-2.

[0044] See Figure 2 , Figure 3 , Figure 8The sleeve-type part external expansion sealing port shaping tool of the present invention has an annular pressing surface 12-1 at the top of the pressing sleeve 12, and a pressing sleeve rotating handle 4 is installed on the annular pressing surface 12-1; a pressure bearing 5 is installed between the annular pressing surface 12-1 of the pressing sleeve 12 and the annular bearing surface 2-2 of the spinning body 2; and an internal thread 12-2 that mates with the external thread 6-1 of the ferrule 6 is provided on the inner side wall of the pressing sleeve 12. When clamping and positioning the sleeve-type part 1 to be adjusted, the ferrule 6 can be fixed by locking (or manually gripping) the ferrule positioning handle 7, and then the pressing sleeve 12 is rotated and moved downward by the pressing sleeve rotating handle 4. The pressure is transmitted to the spinning body 2 through the pressure bearing arranged between the pressing sleeve 12 and the spinning sleeve 2, and then the workpiece is pressed by the rollers arranged in the ball and roller receiving groove 2-3 of the spinning body 2, thereby realizing the clamping and positioning of the workpiece.

[0045] See Figures 1 to 8 Regarding the attached Figure 1 The sleeve-like part 1 shown is fixed to the aircraft fuselage. In order to ensure the sealing performance of the sealing ring installed in the sealing ring assembly groove 1-2 on the inner wall of its opening 1-1, the roundness of the opening 1-1 of the sleeve-like part 1 needs to be adjusted. The present invention provides a sleeve-like part external expansion sealing port shaping tool. Its working process is as follows: the inner wall of the sleeve-like part 1 to be adjusted can be positioned and fixed by the cooperation of the spinning body 2 and the retaining sleeve 10, and the outer wall of the sleeve-like part 1 to be adjusted can be positioned and fixed by the split-structure clamping sleeve 6. Then, the ball 9 and the roller 8 arranged in the ball and roller receiving groove 2-3 of the spinning body 2 are pressed together by the cooperation of the clamping sleeve 12, the pressure bearing 5 and the clamping sleeve 6, so that the roller 8 is in contact with the inner wall surface of the opening of the sleeve-like part 1 to be adjusted; then, the spinning operation handle 15 is rotated to drive the spinning body 2 to rotate, and the roller 8 is driven to spin and shape the inner wall of the opening 1-1 of the sleeve-like part 1 to be adjusted.

Claims

1. A sleeve-type part outer expansion seal port shaping tool characterized by: The assembly includes a spinning body (2), a ferrule (6), balls (9), rollers (8), a retainer (10), a clamping sleeve (12), and an outer ring (14). The spinning body (2) is a stepped sleeve structure with an annular bearing surface (2-2) and inclined ball and roller receiving grooves (2-3) on its outer wall. The inclination angle of the ball and roller receiving grooves (2-3) is consistent with the inclination angle α of the inner wall surface of the opening (1-1) of the sleeve part (1). The ferrule (6) is a split structure, consisting of two parts, left and right, which are connected by a pin (13) to form a circular sleeve. The inner wall of the circular sleeve is a stepped hole structure. The lower part is fitted outside the sleeve part (1) to be shaped, and the upper part is fitted outside the spinning body (2). An external thread (6-1) is provided on the outer wall of the ferrule (6). The balls (9) and rollers (8) are placed on the spinning body (2). 2) In the ball and roller receiving groove (2-3); the retaining sleeve (10) is fixed at the bottom of the inner wall of the spinning body (2), and the outer wall of the retaining sleeve (10) closes the inner end of the ball and roller receiving groove (2-3); the top of the pressing sleeve (12) is provided with an annular pressing surface (12-1), the pressing sleeve rotating handle (4) is installed on the annular pressing surface (12-1), and a pressure bearing (5) is installed between the annular pressing surface (12-1) of the pressing sleeve (12) and the annular bearing surface (2-2) of the spinning body (2); the inner wall of the pressing sleeve (12) is provided with an internal thread (12-2) that mates with the external thread (6-1) of the ferrule (6); the outer ring (14) is fitted on the outside of the bottom of the ferrule (6); a ferrule positioning handle (7) is also provided, and a positioning handle mounting hole (6-2) that mates with the outer ring (14) is provided on the outer wall of the ferrule (6); A spinning operation handle (15) is installed on the upper part of the spinning body (2). The outer wall of the sleeve-type part (1) to be adjusted is positioned and fixed by the ferrule (6) with a split structure. Then, the ball (9) and roller (8) arranged in the ball and roller receiving groove (2-3) of the spinning body (2) are pressed together by the cooperation of the clamping sleeve (12), the pressure bearing (5) and the ferrule (6), so that the roller (8) is in contact with the inner wall surface of the opening of the sleeve-type part (1) to be adjusted. Then, the spinning operation handle (15) is rotated to drive the spinning body (2) to rotate, and the roller (8) is spun and shaped to spin the inner wall of the opening (1-1) of the sleeve-type part (1) to be adjusted.

2. The cannula-style part out-die of claim 1, wherein: The connection between the large-diameter end and the small-diameter end of the stepped hole on the inner sidewall of the sleeve (6) is an inclined annular transition surface (6-4). The inclination angle of the annular transition surface (6-4) is consistent with the inclination angle β of the outer wall surface of the opening (1-1) of the sleeve-type part (1) to be adjusted.

3. The sleeve-type part outer expanding seal port sizing tool of claim 2, wherein: The rotating handle (4) of the clamping sleeve is fitted outside the spinning body (2) with a clearance fit and is fixedly assembled with the annular clamping surface (12-1) at the top of the clamping sleeve (12) by screws (3).

4. The sleeve-type part outer expanding seal port shaping tool according to claim 3, characterized by: Anti-slip textures are provided on the outer walls of the clamping sleeve (12) and the ferrule positioning handle (7).

5. The sleeve-like part outer expansion seal port sizing tool of any one of claims 1 to 4, wherein: The balls (9) and rollers (8) are made of high carbon chromium bearing steel with grade GCr15.

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