Assembly tool for symmetrical arc-shaped clamping rings

Abstract

The invention provides an assembly tool for symmetrical arc-shaped clamping rings. The assembly tool comprises a left clamp, a right clamp and a connecting shaft. A positioning pin hole is drilled in a circular boss at the top of the left clamp and used for pressing a connecting shaft; the inner side of the middle part is arc-shaped, is consistent with the clamping rings in appearance and is used for placing the left clamping ring, two screw holes are drilled in the area corresponding to the clamping ring mounting holes, and locking bolts for fastening the left clamping ring and the right clamping ring penetrate through the screw holes; an R2 semicircular arc is arranged at the bottom and is used for hanging the hasp of the lock catch for locking; a groove is formed in the top of the right clamp and matched with the boss of the left clamp, and a positioning pin hole is drilled in the two sides of the groove and is in butt joint with the boss positioning hole of the left clamp; the inner side of the middle part is consistent with the clamping ring in appearance and is used for placing a right clamping ring, two hexagonal grooves are milled in positions corresponding to clamping ring mounting holes and are used for placing hexagonal nuts, and the centers of the hexagonal grooves coincide with the centers of the mounting holes; and the connecting shaft is riveted with the left clamp and the right clamp to form the clamp-shaped assembly tool. Assembling of the hose, the steel wire rope and the clamping ring is achieved, manual operation is reduced, and the assembling difficulty is lowered.

Description

Technical Field

[0001] This application belongs to the field of production assembly technology, specifically relating to an assembly fixture for a symmetrical arc-shaped retaining ring. Background Technology

[0002] The semi-circular retaining ring is a component of the oxygen supply hose, mainly used for fixing and limiting the oxygen hose and wire rope, such as... Figures 1-2 As shown. The middle position of the left and right retaining rings is used to fix the hose itself, and the semi-circular holes on both sides are used to fix the steel wire rope. One end of the steel wire rope is fixed to the aircraft deck, and the other end is connected to the separation mechanism of the oxygen supply hose. When the pilot ejects from the aircraft, the seat and the aircraft are relatively displaced. The steel wire rope fixed to the aircraft deck pulls the separation mechanism on the oxygen supply hose, realizing the rapid disconnection of the onboard oxygen supply source from the seat-mounted oxygen supply equipment.

[0003] Currently, assembly mainly relies on two employees working together. After inserting the hose and the steel wire ropes at both ends into the two symmetrical semi-circular retaining rings, one person holds the retaining rings in place with both hands; the other person inserts the bolt into the retaining ring mounting hole from one end and tightens it with a hex nut at the other end. Because the components of oxygen products are very small in size, requiring two people to work together makes assembly quite laborious. Summary of the Invention

[0004] The purpose of this application is to provide an assembly fixture for a symmetrical arc-shaped retaining ring, enabling the assembly of a hose, wire rope, and retaining ring. This reduces manual operation, simplifies assembly, and improves assembly efficiency.

[0005] This application provides an assembly fixture for a symmetrical arc-shaped retaining ring, the assembly fixture including a left clamp 1, a right clamp 2, and a connecting shaft 3; The left clamp 1 has a locating pin hole drilled on the top circular protrusion for pressing in the connecting shaft; the inner middle part is arc-shaped, consistent with the shape of the retaining ring, for placing the left retaining ring; two screw holes are drilled in the area corresponding to the retaining ring mounting hole, for inserting locking bolts to fasten the left and right retaining rings; the bottom is provided with an R2 semi-circular arc for hooking the buckle and locking it. The top of the right clamp 2 is provided with a groove to fit the boss of the left clamp. A positioning pin hole is drilled on both sides of the groove to align with the positioning hole of the boss of the left clamp. The inner side of the middle part is consistent with the shape of the retaining ring and is used to place the right retaining ring. Two hexagonal grooves are milled at the corresponding positions of the retaining ring mounting hole to place the hexagonal nut. The center of the hexagonal groove coincides with the center of the mounting hole. Connecting shaft 3 is riveted to the left and right clamps to connect the left and right clamps into a whole, forming a clamp-shaped assembly tool.

[0006] Preferably, both the left clamp 1 and the right clamp 2 are made of 304 stainless steel and the surface is chemically passivated.

[0007] Preferably, the assembly area of ​​the left clamp 1 boss and the right clamp 2 groove is machined to ensure a surface roughness Ra1.6, and the fit is a clearance fit.

[0008] Preferably, the left clamp 1 boss and the right clamp 2 groove are fitted with a clearance fit.

[0009] Preferably, the left clamp 1 is provided with a positioning pin hole, and is fixed together with the right clamp 2 by a chromium vanadium alloy steel connecting shaft.

[0010] Preferably, the equipment tooling further includes a locking buckle 5; the locking buckle 5 has adjustment and locking functions.

[0011] Preferably, after the locking rings are inserted into the middle of the left and right clamps respectively, the locking rings are used to lock the left and right clamps and fix the left and right clamps.

[0012] Preferably, the assembly fixture further includes rubber sleeves 4; there are one rubber sleeve on each side, which are inserted into the left clamp 1 and the right clamp 2 respectively, to improve operational stability.

[0013] The advantages of this application are: This application provides an assembly fixture for a symmetrical arc-shaped retaining ring, which has the following advantages: With the tooling, no two people are needed to operate; one operator can complete the assembly independently, reducing the number of operators required. After using the tooling, the nut can be placed in the groove of the tooling, eliminating the need to squeeze the nut by hand, freeing up one hand and reducing the difficulty of assembly; Using the tooling eliminates the need for two people to work together, improving assembly efficiency and reducing the possibility of the screwdriver slipping and injuring hands when tightening. Attached Figure Description

[0014] Figure 1 Schematic diagram of oxygen hose assembly; Figure 2 A schematic diagram for installing a semi-circular retaining ring; Figure 3 A structural schematic diagram of the symmetrical semi-circular retaining ring assembly fixture provided in this application; Figure 4 This is a schematic diagram of the left clamp structure; Figure 5 This is a schematic diagram of the right clamp. Explanation of reference numerals in the attached figures: 1-Left clamp, 2-Right clamp, 3-Connecting shaft, 4-Rubber sleeve, 5-Lock, 6-Oxygen hose, 7-Wire rope, 8-Clamping ring. Detailed Implementation The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 The assembly fixture for the symmetrical arc-shaped retaining ring provided in this application is explained.

[0015] This application provides an assembly fixture for a symmetrical arc-shaped retaining ring, including: a left clamp 1, a right clamp 2, a connecting shaft 3, a rubber sleeve 4, and a locking buckle 5; A positioning pin hole is drilled on the top circular boss of the left clamp 1 for pressing in the connecting shaft; the inner side of the middle is arc-shaped, consistent with the shape of the retaining ring, for placing the left retaining ring, and two screw holes are drilled in the area corresponding to the retaining ring mounting hole, for inserting locking bolts to fasten the left and right retaining rings; the bottom is provided with an R2 semi-circular arc for hooking the buckle and locking.

[0016] The top of the right clamp 2 has a groove that fits with the boss of the left clamp. A locating pin hole is drilled on both sides of the groove to align with the locating hole of the boss of the left clamp. The inner middle part is consistent with the shape of the retaining ring and is used to place the right retaining ring. Two hexagonal grooves are milled at the corresponding positions of the retaining ring mounting holes to hold hexagonal nuts. The center of the hexagonal grooves coincides with the center of the mounting holes.

[0017] The connecting shaft 3 is riveted to the left and right clamps to connect the left and right clamps into a whole, forming a clamp-shaped assembly tool.

[0018] One rubber sleeve is placed on each side of the left and right jaws, respectively, and is installed on the handles of the left jaw 1 and the right jaw 2 to improve operational stability.

[0019] The locking buckle 5 has adjustment and locking functions. After inserting the retaining rings into the middle of the left and right clamps respectively, the locking buckle is used to lock the left and right clamps and fix the left and right retaining rings.

[0020] Optionally, the left clamp 1 and right clamp 2 are made of 304 stainless steel and the parts are chemically passivated.

[0021] Optionally, the surface roughness Ra1.6 is guaranteed during machining of the boss area of ​​the left clamp 1 and the groove area of ​​the right clamp 2; the fit method is clearance fit.

[0022] Optionally, the left clamp 1 and the right clamp 2 are provided with a positioning pin hole and are riveted together by a chrome vanadium alloy steel connecting shaft; Optionally, the centers of the two bolt holes of the left clamp 1 coincide with the centers of the two mounting holes of the retaining ring.

[0023] Optionally, the center holes of the two hexagonal grooves of the right clamp 2 coincide with the center of the two mounting holes of the retaining ring.

[0024] Optionally, the rubber sleeve 4 is arc-shaped, and the internal dimensions of the rubber sleeve are consistent with the external dimensions of the handles of the left clamp 1 and the right clamp 2.

[0025] like Figures 3-5 As shown, this application provides an assembly fixture for a symmetrical arc-shaped retaining ring, including: a left clamp, a right clamp, a connecting shaft, a rubber sleeve, and a locking buckle; The inner side of the left clamp of the clamp-shaped assembly tool is arc-shaped, which is consistent with the shape of the retaining ring and is used to place the left retaining ring; the two bolt mounting holes in the middle of the left clamp coincide with the center of the retaining ring mounting hole, and locking bolts for fastening the left and right retaining rings are inserted; the bottom is provided with an R2 semi-circular arc for hooking the buckle and locking it.

[0026] The inner side of the right clamp of the clamp assembly fixture is also consistent with the shape of the retaining ring and is used to place the right retaining ring. The two hexagonal nut mounting holes on the inner side of the right clamp coincide with the center of the retaining ring mounting hole and are used to place the hexagonal nuts.

[0027] The connecting shaft connects the left and right clamps together to form an assembly fixture. The position of the left and right retaining rings can be adjusted by gripping and releasing the handles of the left and right clamps of the assembly fixture.

[0028] The rubber sleeves are respectively fitted onto the left and right clamp operating handles of the assembly fixture for stable operation.

[0029] Locks are used to lock and secure assembly fixtures.

[0030] During assembly, first place the hexagonal nuts in the two hexagonal nut grooves of the right clamp, then place the right retaining ring in the arc-shaped groove of the right clamp, place the hose in the large arc of the right retaining ring, and place the two steel wire ropes in the two small arcs of the right retaining ring respectively; then place the left retaining ring in the arc-shaped groove of the left clamp, and then grip the assembly fixture handle to close the interface between the left and right retaining rings; lock the assembly fixture with the locking buckle. Finally, insert the locking bolt through the mounting hole of the left clamp and tighten it with a screwdriver. Release the locking buckle and remove the assembled product from the fixture, thus achieving rapid assembly of the hose, steel wire rope, and left and right retaining rings.

[0031] The technical solution of this application is to provide an assembly fixture for a symmetrical arc-shaped retaining ring, such as... Figure 3-5 As shown, the assembly fixture for the symmetrical arc-shaped retaining ring includes: a left clamp 1, a right clamp 2, a connecting shaft 3, a rubber sleeve 4, and a locking buckle 5. After the fixture is assembled, the left and right clamps can be closed by gripping the handles of the left and right clamps. The fixture is mainly used for assembling hoses, wire ropes, and left and right retaining rings.

[0032] When assembling the hose, wire rope, and left and right retaining rings, place the assembly fixture vertically with the right clamp at the bottom and the left clamp at the top. First, place the two hexagonal nuts into the two hexagonal nut grooves of the right clamp. Then, place the right retaining ring into the arc-shaped groove of the right clamp, place the hose into the large arc of the right retaining ring, and place the two wire ropes into the two small arcs of the right retaining ring respectively. Next, place the left retaining ring into the arc-shaped groove of the left clamp of the assembly fixture. Then, grip the handle of the assembly fixture to close the interface between the left and right retaining rings. Lift the handle of the locking buckle on the right clamp so that the buckle's pull rod contacts the bottom arc of the left clamp, and then press the handle of the locking buckle to lock the assembly fixture. Finally, insert the locking bolt through the mounting hole of the left clamp and tighten it with a screwdriver. Then, release the locking handle and remove the assembled product from the fixture, thus achieving rapid assembly of the hose, wire rope, and left and right retaining rings.

[0033] This application belongs to the field of production assembly, specifically relating to an assembly fixture for a symmetrical arc-shaped retaining ring. The fixture includes: a left clamp, a right clamp, a connecting shaft, a rubber sleeve, and a locking buckle. A locating pin hole is drilled on the top circular boss of the left clamp for pressing in the connecting shaft. The inner middle section, conforming to the shape of the retaining ring, is used to hold the left retaining ring, and two screw holes are drilled to align with the retaining ring mounting hole for inserting locking bolts to secure the left and right retaining rings. A semi-circular radius (R) is provided at the bottom for hooking and locking the locking buckle. The right clamp mates with the boss of the left clamp, with a locating pin hole drilled on both sides of the groove to align with the locating hole of the left clamp's boss. The inner middle section, conforming to the shape of the retaining ring, is used to hold the right retaining ring, and two hexagonal grooves are milled corresponding to the retaining ring mounting hole for placing hexagonal nuts, with the center of the hexagonal grooves coinciding with the center of the mounting hole. The connecting shaft is pressed into the left and right clamps, connecting them into a single unit, forming a clamp-shaped assembly fixture. The rubber sleeve is installed on the handles of the left and right clamps for easy operation. The locking buckle is a standard part purchased from the market. It has adjustment and locking functions and is fixed to the bottom of the right clamp by welding. After inserting retaining rings into the middle of the left and right clamps, the locking buckle is used to lock the left and right clamps and fix the left and right retaining rings.

Claims

1. An assembly fixture for a symmetrical arc-shaped retaining ring, characterized in that, The assembly fixture includes a left clamp (1), a right clamp (2), and a connecting shaft (3); Among them, the left clamp (1) has a locating pin hole drilled on the top circular boss for pressing in the connecting shaft; the middle inner side is arc-shaped, consistent with the shape of the retaining ring, for placing the left retaining ring; two screw holes are drilled in the area corresponding to the retaining ring mounting hole, for inserting the locking bolts used to fasten the left and right retaining rings; the bottom is provided with an R2 semi-circular arc for hooking the buckle and locking it. The top of the right clamp (2) is provided with a groove to fit the boss of the left clamp. A positioning pin hole is drilled on both sides of the groove to connect with the positioning hole of the boss of the left clamp. The inner side of the middle part is consistent with the shape of the retaining ring and is used to place the right retaining ring. Two hexagonal grooves are milled at the corresponding positions of the retaining ring mounting hole to place the hexagonal nut. The center of the hexagonal groove coincides with the center of the mounting hole. The connecting shaft (3) is riveted to the left and right clamps to connect the left and right clamps into a whole, forming a clamp-shaped assembly tool.

2. The assembly fixture according to claim 1, characterized in that, The left clamp (1) and right clamp (2) are both made of 304 stainless steel and the surface is chemically passivated.

3. The assembly fixture according to claim 2, characterized in that, The left clamp (1) boss and the right clamp (2) groove assembly area are machined to ensure a surface roughness of Ra1.6 and a clearance fit.

4. The assembly fixture according to claim 3, characterized in that, The left clamp (1) boss and the right clamp (2) groove are fitted with a clearance fit.

5. The assembly fixture according to claim 1, characterized in that, The left clamp (1) is provided with a positioning pin hole, which is fixed together with the right clamp (2) by a chromium vanadium alloy steel connecting shaft.

6. The assembly fixture according to claim 1, characterized in that, The equipment tooling also includes a latch (5); the latch (5) has adjustment and locking functions.

7. The assembly fixture according to claim 6, characterized in that, After inserting the retaining rings into the middle of the left and right clamps respectively, use the lock to lock the left and right clamps and fix the left and right retaining rings.

8. The assembly fixture according to claim 1, characterized in that, The assembly fixture also includes a rubber sleeve (4); there is one rubber sleeve (4) on each side, which is inserted into the left clamp (1) and the right clamp (2) respectively to improve operational stability.

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