Screw sleeve dismounting and mounting tool

Abstract

The invention discloses a swivel nut disassembling and assembling tool which comprises a support, a swivel nut butt joint piece, an ejector block and a handle. The bracket is omega-shaped, the middle of the bracket is a semicircle, and two sides of the semicircle are cylinders; mounting holes are formed in the column body, the two sets of threaded sleeve butt joint pieces are installed in the column body mounting holes in the two sides of the support respectively, the ejector block is fixed to the end of the outer side of the column body, one end of each threaded sleeve butt joint piece extends out of the ejector block to be fixedly connected with the handle, and the handle can drive the threaded sleeve butt joint pieces to move outwards. The other end of the threaded sleeve butt joint piece extends out of the inner side end of the column body and is inserted into the threaded sleeve process hole; and the disassembly and assembly tool is rotated in the circumferential direction of the threaded sleeve to finish disassembly and assembly of the threaded sleeve in butt joint with the tool. According to the invention, the thread sleeve can be conveniently fastened and dismantled.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical assembly, and in particular to a screw sleeve disassembly and assembly tool. Background Art

[0002] Missile compartments are currently mostly connected by a "sleeve + radial screw" method, which is simple and quick to assemble and disassemble. However, for missiles that are launched by slide rails, the front and rear missile bodies need to have a high assembly accuracy after docking, which requires the use of screw sleeves.

[0003] The basic principle of the screw sleeve design is to make the front and rear projectiles approach each other through the rotation of the screw sleeve, so that the front and rear projectiles are firmly connected. At the same time, the connection method of the screw sleeve can also regulate the torque of the connection tightening, further ensuring the reliability of the connection.

[0004] How to conveniently use the screw sleeve to fasten and remove the front and rear projectile bodies is an important issue in the docking of the front and rear projectile bodies of missiles. A tool must be designed to facilitate the fastening and removal of the screw sleeve. Summary of the invention

[0005] In view of this, the present invention provides a screw sleeve disassembly tool, which can facilitate the fastening and removal of the screw sleeve.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A screw sleeve disassembly and assembly tool, comprising a bracket, a screw sleeve docking piece, a top block and a handle;

[0008] The bracket is Ω-shaped, with a semicircular arc in the middle and columns on both sides of the semicircular arc; a mounting hole is provided inside the column, and two groups of the screw sleeve docking parts are respectively installed in the column mounting holes on both sides of the bracket, the top block is fixed to the outer end of the column, one end of the screw sleeve docking part extends out of the top block and is fixedly connected to the handle, the handle can drive the screw sleeve docking part to move outward, and the other end of the screw sleeve docking part extends out from the inner end of the column and is inserted into the screw sleeve process hole; the disassembly and assembly tool is rotated along the circumference of the screw sleeve to complete the disassembly and assembly of the screw sleeve docking with it.

[0009] Furthermore, the threaded sleeve docking piece includes a shaft, a spring and a bushing;

[0010] The bushing is fixed inside the inner end of the column;

[0011] The shaft is a two-section stepped shaft, the small diameter section extends from one end of the shaft liner to cooperate with the process hole of the screw sleeve, the large diameter section extends from the top block and is fixedly connected to the handle, and the large diameter section is provided with a shoulder I for engaging and limiting with the other end of the shaft liner; the spring is sleeved on the outer circumference of the large diameter section, one end of the spring abuts against shoulder I, and the other end of the spring abuts against the top block; the spring is in a compressed state, pressing shoulder I of the large diameter section against the end face of the shaft liner; the large diameter section is also provided with a shoulder II for abutting and limiting with the internal step surface of the top block, and for limiting axial outward movement.

[0012] Furthermore, the top block is a stepped structure, the small end of the stepped structure matches the axial hole of the column mounting hole; the large end of the stepped structure is consistent with the contour shape of the column, and the stepped end face abuts against the outer end face of the column.

[0013] Furthermore, the large end of the stepped structure of the top block is fixedly connected to the outer end surface of the column through a fastener.

[0014] Furthermore, the outer circumference of the portion where the small end of the stepped structure of the top block is located is provided with threads, and the portion in the column mounting hole where the small end of the stepped structure is located is provided with internal threads, and the two are threadedly connected.

[0015] Furthermore, the column is a quadrangular prism; and the top block includes a cylindrical section and a quadrangular prism section.

[0016] Furthermore, the screw sleeve docking piece is a three-section stepped rod, which is divided into a small diameter section, a large diameter section and a middle diameter section in sequence. The small diameter section extends from the inner end of the column to cooperate with the screw sleeve process hole, and the large diameter section is located between the small diameter section and the middle diameter section. The outer circumference of the large diameter section is provided with an external thread for cooperating with the internal thread set at the front end of the column mounting hole. The front end is the end close to the semicircular arc. The length of the external thread is a set value, which is used to limit the length of the three-section stepped rod screwed forward; the middle diameter section extends from the top block and is fixedly connected to the handle; the middle diameter section is provided with a shoulder III for abutting and limiting the position with the internal step surface of the top block.

[0017] Furthermore, the column is provided with a through hole.

[0018] Furthermore, the handle is a plum blossom-shaped handwheel.

[0019] Beneficial effects:

[0020] 1. The present invention utilizes the screw sleeve docking pieces on both sides to dock with the screw sleeve, and drives the screw sleeve to rotate under the rotation of the overall structure of the tooling to complete the fastening and removal, which is simple to operate and easy to implement.

[0021] 2. The position where the threaded sleeve joint piece of the present invention cooperates with the end of the bracket column close to the semicircular arc is the main load-bearing position. The present invention adopts the large diameter section of the shaft, the shaft liner and the bracket column to cooperate, which can improve the strength and further enhance the working reliability.

[0022] 3. The column of the present invention is a quadrangular prism, which is convenient for use with a torque wrench, further quantifying the tightening torque of the screw sleeve and improving the reliability of the connection.

[0023] 4. The column of the present invention is provided with a through hole to avoid obstruction of movement of precision parts inside the column and improve the reliability of the tooling.

[0024] 5. The handle of the present invention is a plum blossom-shaped hand wheel, which is convenient for the operator to perform manual rotation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram (perspective view) of embodiment 1.

[0026] Figure 2 It is a cross-sectional view of the first embodiment.

[0027] Figure 3 It is a structural schematic diagram (perspective view) of embodiment 2.

[0028] Figure 4 It is a schematic diagram of the screw sleeve structure.

[0029] Figure 5 for Figure 2 Partial schematic diagram.

[0030] Among them, 101-bracket, 201-shaft, 202-three-section stepped rod, 3-spring, 401-shaft bushing, 5-top block, 6-handle, 7-shaft shoulder I, 8-screw sleeve, 801-process hole, 9-shaft shoulder II. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0032] The present invention provides a screw sleeve disassembly and assembly tool, which includes a bracket 101, a screw sleeve docking piece, a top block 5 and a handle 6.

[0033] The bracket 101 is Ω-shaped, with a semicircular arc in the middle and cylinders on both sides of the semicircular arc; a mounting hole is provided inside the cylinder, and two sets of screw sleeve docking parts are respectively installed in the column mounting holes on both sides of the bracket, and the top block 5 is fixed to the outer end of the cylinder, and one end of the screw sleeve docking part extends out of the top block 5 and is fixedly connected to the handle 6. The handle 6 can drive the screw sleeve docking part to move outward, and the other end of the screw sleeve docking part extends from the inner end of the cylinder and is inserted into the process hole 801 of the screw sleeve 8; the disassembly and assembly tool is rotated along the circumference of the screw sleeve 8, thereby completing the disassembly and assembly of the screw sleeve 8 docked therewith.

[0034] Embodiment 1

[0035] like Figure 1 , Figure 2 , Figure 5As shown, the screw sleeve docking member includes a shaft 201, a spring 3 and a bushing 401. The bushing 401 is fixed inside the inner end of the column; the shaft 201 is a two-section stepped shaft, the small diameter section extends from one end of the bushing 401 to cooperate with the process hole 801 of the screw sleeve 8, the large diameter section extends from the top block 5 and is threadedly connected and fixed together with the handle 6, and the large diameter section is provided with a shoulder Ⅰ7 for engaging and limiting with the other end of the bushing 401; the spring 3 is sleeved on the outer circumference of the large diameter section, one end of the spring 3 abuts against the shoulder Ⅰ7, and the other end of the spring 3 abuts against the top block 5; the spring 3 is in a compressed state, and the large diameter section shoulder Ⅰ7 is pressed against the end face of the bushing 401. The large diameter section is also provided with a shoulder Ⅱ9 for abutting and limiting with the internal step surface of the top block 5 to prevent the handle 6 from pulling the shaft 201 outward too long, causing the small diameter section of the shaft 201 to penetrate too deep into the bushing 401, or even penetrate too deep into the inner cavity of the column to cause jamming.

[0036] The top block 5 is a stepped structure, the outer diameter of the small end of the stepped structure is consistent with the inner diameter of the outer end of the column mounting hole, and the part where the small end of the stepped structure is located cooperates with the axial hole of the column mounting hole; the large end of the stepped structure is consistent with the contour shape of the column, and the step end face abuts against the outer end face of the column.

[0037] Preferably, the column is a quadrangular prism, which can be used in conjunction with a torque wrench for calibration to further quantify the tightening torque of the screw sleeve 8. The top block 5 includes a cylindrical section and a quadrangular prism section, that is, the part where the small end of the step structure is located is the cylindrical section, and the part where the large end of the step structure is located is the quadrangular prism section. The quadrangular prism section is fixedly connected to the outer end face of the column by screws. Alternatively, the outer circumference of the cylindrical section is provided with a thread, and the inner circumference of the column mounting hole is provided with an internal thread at the position where the cylindrical section cooperates with the cylindrical section, and the cylindrical section and the column mounting hole are threadedly connected.

[0038] The column is provided with a through hole, which communicates the outside with the internal mounting hole. As an improvement, the through hole runs through the bottom surface of the column from the top surface of the column.

[0039] The handle 6 is a plum blossom-shaped hand wheel, which is convenient for manual operation.

[0040] In actual use, since there is a slider at the top of the missile, the slider slides in the boring tooling, and the screw sleeve 8 cannot rotate a full circle, so that the front and rear compartments of the missile are constantly approaching and the two ends are locked. Therefore, when the screw sleeve 8 is rotated to a certain extent, the handle 6 is used to pull the shaft 201 axially out a certain distance, and then the small diameter section of the shaft 201 on the screw sleeve docking piece is inserted into the process hole 801 of the screw sleeve 8, as shown in FIG. Figure 4 As shown, (the small diameter sections on both sides are respectively inserted into the process holes 801 at both ends of the screw sleeve 8), the disassembly tool is rotated along the circumference of the screw sleeve 8. If an obstacle is encountered, the disassembly tool is removed and inserted into another set of process holes at both ends of the screw sleeve 8 to continue rotating. This reciprocating process can continuously tighten the screw sleeve 8, thereby docking the two compartments of the missile. The disassembly process is the same, and the disassembly tool rotates in the opposite direction.

[0041] Embodiment 2

[0042] like Figure 3 As shown, the screw sleeve docking piece is a three-section step rod 202, which is divided into a small diameter section, a large diameter section and a middle diameter section in sequence. The small diameter section extends from the inner end of the column to cooperate with the process hole 801 of the screw sleeve 8. The large diameter section is located between the small diameter section and the middle diameter section. The outer circumference of the large diameter section is provided with an external thread, which is used to cooperate with the internal thread set at the front end of the column mounting hole. The front end is the end close to the semicircular arc. The length of the external thread is a set value, and the set thread length is used to limit the forward screwing length of the three-section step rod 202; the middle diameter section extends from the top block 5 and is fixedly connected to the handle 6. The middle diameter section of the three-section step rod 202 is provided with a shoulder III (consistent with the shoulder II 9 of the first embodiment) for abutting and limiting with the internal step surface of the top block 5 to prevent the three-section step rod 202 from being screwed out too long, causing the small diameter section of the three-section step rod 202 to penetrate too deep into the inner cavity of the column and cause jamming.

[0043] The middle diameter section and the handle 6 can be fixedly connected by welding to prevent the handle 6 from falling off when the small diameter section of the three-section stepped rod 202 needs to be rotated backward to match other process holes of the screw sleeve 8.

[0044] As in the first embodiment, the top block 5 is a stepped structure, the outer diameter of the small end of the stepped structure is consistent with the inner diameter of the outer end of the column mounting hole, and the part where the small end of the stepped structure is located cooperates with the axial hole of the column mounting hole; the large end of the stepped structure is consistent with the contour shape of the column, and the step end face abuts against the outer end face of the column.

[0045] Preferably, the column is a quadrangular prism; the top block 5 includes a cylindrical section and a quadrangular prism section, that is, the part where the small end of the step structure is located is the cylindrical section, and the part where the large end of the step structure is located is the quadrangular prism section. The quadrangular prism section is fixedly connected to the outer end surface of the column by screws. Alternatively, the outer circumference of the cylindrical section is provided with threads, and the inner part of the column mounting hole that cooperates with the cylindrical section is provided with internal threads, and the cylindrical section and the column mounting hole are threadedly connected.

[0046] The column is provided with a through hole, which communicates the outside with the internal mounting hole. As an improvement, the through hole runs through the bottom surface of the column from the top surface of the column.

[0047] The handle 6 is a plum blossom-shaped hand wheel, which is convenient for manual operation.

[0048] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw sleeve disassembly and assembly tool, characterized in that: It includes a bracket, a screw sleeve docking piece, a top block and a handle; The bracket is Ω-shaped, with a semicircular arc in the middle and columns on both sides of the semicircular arc; a mounting hole is provided inside the column, and two groups of the screw sleeve docking parts are respectively installed in the column mounting holes on both sides of the bracket, the top block is fixed to the outer end of the column, one end of the screw sleeve docking part extends out of the top block and is fixedly connected to the handle, the handle can drive the screw sleeve docking part to move outward, and the other end of the screw sleeve docking part extends out from the inner end of the column and is inserted into the screw sleeve process hole; the disassembly and assembly tool is rotated along the circumference of the screw sleeve to complete the disassembly and assembly of the screw sleeve docking with it.

2. The screw sleeve disassembly and assembly tool according to claim 1, characterized in that: The threaded sleeve docking piece includes a shaft, a spring and a bushing; The bushing is fixed inside the inner end of the column; The shaft is a two-section stepped shaft, the small diameter section extends from one end of the shaft liner to cooperate with the process hole of the screw sleeve, the large diameter section extends from the top block and is fixedly connected to the handle, and the large diameter section is provided with a shoulder I for engaging and limiting with the other end of the shaft liner; the spring is sleeved on the outer circumference of the large diameter section, one end of the spring abuts against shoulder I, and the other end of the spring abuts against the top block; the spring is in a compressed state, pressing shoulder I of the large diameter section against the end face of the shaft liner; the large diameter section is also provided with a shoulder II for abutting and limiting with the internal step surface of the top block, and for limiting axial outward movement.

3. The screw sleeve disassembly and assembly tool as claimed in claim 2, characterized in that: The top block is a stepped structure, the small end of the stepped structure is matched with the axial hole of the column mounting hole; the large end of the stepped structure is consistent with the contour shape of the column, and the stepped end face is in contact with the outer end face of the column.

4. The screw sleeve disassembly and assembly tool as claimed in claim 3, characterized in that: The large end of the stepped structure of the top block is fixedly connected to the outer end surface of the column through a fastener.

5. The screw sleeve disassembly and assembly tool as claimed in claim 3, characterized in that: The outer circumference of the portion where the small end of the stepped structure of the top block is located is provided with threads, and the portion in the column mounting hole where the small end of the stepped structure is located is provided with internal threads, and the two are threadedly connected.

6. The screw sleeve disassembly and assembly tool according to any one of claims 3 to 5, characterized in that: The column is a quadrangular prism; the top block includes a cylindrical section and a quadrangular prism section.

7. The screw sleeve disassembly and assembly tool according to claim 1, characterized in that: The screw sleeve docking piece is a three-section stepped rod, which is divided into a small diameter section, a large diameter section and a middle diameter section in sequence. The small diameter section extends from the inner end of the column to cooperate with the screw sleeve process hole, and the large diameter section is located between the small diameter section and the middle diameter section. The outer circumference of the large diameter section is provided with an external thread for cooperating with the internal thread provided at the front end of the column mounting hole. The front end is the end close to the semicircular arc. The length of the external thread is a set value, which is used to limit the forward screw-in length of the three-section stepped rod; the middle diameter section extends from the top block and is fixedly connected to the handle; the middle diameter section is provided with a shoulder III for abutting and limiting the position with the internal step surface of the top block.

8. The screw sleeve disassembly and assembly tool as claimed in claim 2 or 7, characterized in that: The column is provided with a through hole.

9. The screw sleeve disassembly and assembly tool as claimed in claim 2 or 7, characterized in that: The handle is a plum blossom-shaped hand wheel.

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