A hydrostatic forming tool for the upper body of a quick-release lock

Abstract

The present invention relates to a tool for assembling the upper lock body of a quick-release lock by means of static pressure forming, which is applied to the technical field of mechanical assembly manufacturing process equipment. A static pressure forming tool for the upper lock body of a quick-release lock, wherein the upper lock body is composed of a backing plate, a pin, a spring, and a dowel. The static pressure forming tool comprises a fixed limiting mechanism and a movable limiting mechanism. The fixed limiting mechanism is used to limit the positions of the backing plate and the pin, and at the same time make the pin protrude from the backing plate. The movable limiting mechanism is used to limit the pin and the dowel. When an external force acts on the movable limiting mechanism or the combination of the movable limiting mechanism and the fixed limiting mechanism, the dowel inserted on the pin is flattened and deformed, thereby completing the assembly of the upper lock body. The present invention has the following advantages: 1. Simple operation, can be independently completed by a single person, and high efficiency; 2. Can accurately control the deformation amount of the dowel, and greatly improve the forming quality.

Description

Technical Field

[0001] The present invention relates to a tool for assembling the upper lock body of a quick-release lock by a static pressure forming method, which is applied to the technical field of mechanical assembly manufacturing process equipment. Background Art

[0002] Quick-release locks are widely used in the aerospace field due to their convenience in locking and unlocking. The upper lock body of a certain type of double-ear quick-release lock is composed of a backing plate, a pin, a spring, and a cotter pin. See Figure 1 . To assemble the upper lock body, first place the spring into the backing plate, then sequentially pass the pin through the spring and the round hole of the backing plate, then insert the cotter pin into the round hole on the pin, and finally flatten the two ends of the cotter pin to deform it so that the cotter pin will not fall off the backing plate, thus completing the assembly of the upper lock body.

[0003] The upper lock body is generally assembled manually. The specific method is as follows: first place the spring and the pin into the backing plate, and place the cotter pin into the round hole of the pin; one worker manually presses the pin to make the pin extend out of the backing plate as much as possible; then place the lock body on the vise, and another worker uses a tool to strike the two ends of the cotter pin to make the two ends of the cotter pin flattened and formed. This method has the following disadvantages:

[0004] 1. Inconvenient operation and high difficulty

[0005] The force required to manually press the spring is relatively large, and it is easy to get fatigued. The size of the lock body, especially the cotter pin, is small, and it is inconvenient and difficult to operate and inefficient to strike and form it on the vise;

[0006] 2. The cotter pin is prone to cracks and fractures

[0007] The cotter pin is formed by knocking. The force of knocking is unstable, and it is easy to crack or break the cotter pin. Breaking will cause the part to be scrapped, and cracking will leave a quality hidden danger. In addition, the quality of the formed part by knocking cannot be controlled, some have small deformation, and some have large deformation;

[0008] 3. There are operation hazards

[0009] This method requires the cooperation of two workers to complete. The fingers pressing the pin are relatively close to the knocking part. Once the cooperation is improper, the knocking tool and the hammer will hurt the workers. Summary of the Invention

[0010] The purpose of the present invention is to provide a static pressure forming tool for the upper lock body of a quick-release lock, so that the assembly of the upper lock body can be completed by a single person, while improving the assembly quality and efficiency of the lock body and ensuring personnel safety.

[0011] To achieve the above object, the present invention adopts the following technical solution: A hydrostatic forming tool for the upper lock body of a quick-release lock. The upper lock body is composed of a backing plate, a pin, a spring, and a peg. The hydrostatic forming tool includes a fixed limiting mechanism and a movable limiting mechanism. The fixed limiting mechanism is used to limit the positions of the backing plate and the pin, and at the same time make the pin extend out of the backing plate. The movable limiting mechanism is used to limit the pin and the peg. When an external force acts on the movable limiting mechanism or the combination of the movable limiting mechanism and the fixed limiting mechanism, the peg inserted on the pin is flattened and deformed, thus completing the combination of the upper lock body.

[0012] Preferably, the fixed limiting mechanism includes a fixed seat and a limiting mechanism. A cavity for accommodating the upper lock body is provided inside the fixed seat, and the cavity communicates left and right. The limiting mechanism is arranged at the left end of the cavity. When the upper lock body is placed in the cavity, the backing plate and the spring are limited in the cavity, and the pin and the peg extend out of the right end of the cavity.

[0013] Preferably, the limiting mechanism includes a retaining plate and a screw. A round hole is opened at one end of the retaining plate, and it is fixed to the entrance end of the cavity by the screw passing through the round hole. The other end of the retaining plate is a free end. When the upper lock body is placed in the cavity, rotating the retaining plate can block the upper lock body in the cavity of the fixed seat.

[0014] Preferably, a notch is provided at the right end of the fixed seat, and a groove is provided on the upper surface of the notch for accommodating the part of the pin extending out of the cavity. The lower surface of the movable limiting mechanism is adapted to the upper surface of the notch, and an arc-shaped groove is opened at its relative position with the groove for limiting the pin.

[0015] Preferably, the upper surface of the notch is close to the peg, thereby limiting and supporting the peg.

[0016] Preferably, semi-circular grooves are opened on both sides of the groove and the arc-shaped groove, and a discontinuous structure is adopted between the groove and the semi-circular groove and between the arc-shaped groove and the semi-circular groove.

[0017] Preferably, connecting parts are provided on both the fixed limiting mechanism and the movable limiting mechanism for connecting the power mechanism. When the fixed limiting mechanism and the movable limiting mechanism move towards each other under the action of the power mechanism, the peg is flattened and deformed.

[0018] Preferably, the power mechanism adopts a riveting machine, and the connecting parts are respectively arranged on the upper surface and the lower surface of the movable limiting mechanism and the fixed limiting mechanism.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The upper lock body is fixed inside the fixed seat, and the pressure is provided by a riveting machine. Hydrostatic forming is used to replace the traditional knocking forming. The operation is simple, and a single person can complete it independently with high efficiency;

[0021] 2. Hydrostatic forming will not cause cracks and fractures in the pins. By adjusting the stroke of the riveting press, the deformation of the pins can be accurately controlled, and the forming quality is greatly improved. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural view of the upper lock body in the background art and embodiments of the present invention;

[0023] Figure 2 is a schematic structural view of the fixed seat in the embodiment of the present invention (2a is the front view, and 2b is the right view of 2a);

[0024] Figure 3 is a schematic structural view of the movable seat in the embodiment of the present invention (3a is the front view, and 3b is the right view of 3a);

[0025] Figure 4 is a view of the usage state of the embodiment of the present invention;

[0026] Figures 1-4 In it, 1. Fixed seat; 2. Movable seat; 3. Retaining plate; 4. Screw; 5. Liner plate; 6. Pin; 7. Spring; 8. Pin. Detailed Embodiment

[0027] It should be noted that in this embodiment, the terms "upper", "lower", "left", "right", "inner", "outer", etc. are for the convenience of description or in accordance with the description shown in the drawings, and are not specific limitations on their orientations, and do not constitute limitations to the present invention.

[0028] The following will further describe the present invention in detail with reference to the attached Figures 1-4 A hydrostatic forming tool for the upper lock body of a quick-release lock. The upper lock body is composed of a liner plate 5, a pin 6, a spring 7, and a pin 8, as shown in Figure 1 shown; the hydrostatic forming tool includes a fixed limiting mechanism and a movable limiting mechanism. The fixed limiting mechanism is used to limit the positions of the liner plate and the pin, and at the same time make the pin extend out of the liner plate; the movable limiting mechanism is used to limit the pin and the pin; when an external force acts on the movable limiting mechanism or the combination of the movable limiting mechanism and the fixed limiting mechanism, the pin inserted on the pin is flattened and deformed, thereby completing the combination of the upper lock body.

[0029] As shown in Figure 2 (2a, 2b), the fixed limiting mechanism is composed of a fixed seat 1 and a limiting mechanism; a cavity for placing or removing the upper lock body is provided inside the fixed seat 1, and the cavity communicates left and right; the limiting mechanism is composed of a retaining plate 3 and a screw 4, which are arranged at the left end of the cavity. When the upper lock body is placed in the cavity, the liner plate 5 and the spring 7 are limited in the cavity, and the pin 6 and the pin 8 extend out of the right end of the cavity;

[0030] The specific structure is as follows:

[0031] Fixed seat 1: A groove with the same shape as the upper lock body lining plate 5, pin 6, and pin 8 is arranged inside one side of the fixed seat, and cooperates with the baffle 3 to fix the upper lock body lining plate 5, spring 7, and pin 6 inside the groove, and the pin 6 can be extended without manually pressing the spring 7; in addition, when the pin 8 is flattened and deformed, the limit of the baffle 3 is cancelled, and the upper lock body can be taken out of the groove; a square notch is arranged on the other side, which is a position-retaining notch for the movable seat 2; three discontinuous circular grooves are arranged at the bottom of the notch, and the middle circular groove is used to place the extended end of the pin; the ribs in the middle of the three circular grooves are used to press the pin 8 to flatten and deform the pin; at the same time, a cylindrical pin is arranged at the bottom of the fixed seat 1, which is used to install the fixed seat on the riveting machine;

[0032] Blocking piece 3: It is a common rigid thin sheet with a round hole at one end. It is fixed to the fixing seat 1 by a screw 4 passing through the round hole. The other end of the blocking piece 3 is a free end. When the upper lock body is placed in the groove of the fixing seat, the blocking piece 3 can be rotated to block the upper lock body in the groove of the fixing seat to prevent the upper lock body from popping out and falling off due to the force of the spring;

[0033] Screw 4: used to fix the baffle 3 on the fixing base 1.

[0034] like Figure 3 As shown in (3a, 3b), three discontinuous circular grooves are also set at the bottom of the movable seat 2. The middle circular groove is used to clamp the protruding end of the pin. The ribs in the middle of the three circular grooves and the ribs in the circular grooves of the fixed seat are used to press the pin to flatten and deform it. A cylindrical pin is set on the top of the movable seat 2 for installing the movable seat on the riveting machine.

[0035] like Figure 4 As shown, the method of using the static pressure forming tool is:

[0036] (1) Place the liner 5, spring 7 and pin 6 into the groove of the fixing seat 1 in sequence, and fix the liner 5, spring 7 and pin 6 in the groove with the baffle 3 and screw 4;

[0037] (2) Insert the pin 8 into the round hole of the pin 6;

[0038] (3) Install the fixed seat 1 and the movable seat 2 at both ends of the riveting machine respectively, and adjust the stroke of the riveting machine;

[0039] (4) Start the riveting machine, the fixed seat 1 and the movable seat 2 are pressed against each other, and the two ends of the pin are flattened and formed through the ribs between the grooves, completing the assembly of the upper lock body;

[0040] (5) Turn the baffle 3 and take out the assembled upper lock body.

[0041] In this embodiment, the notch on the right side of the fixed seat 1 provides a bearing platform for the movable seat 2 and the pin 8. Of course, an independent bearing platform can also be used as long as it has a structure and function similar to that of the notch. During use, the power mechanisms are respectively arranged on the movable seat and the platform to move towards each other, and the pin can also be flattened and deformed.

Claims

1. A hydrostatic forming tool for the upper lock body of a quick-release lock. The upper lock body is composed of a lining plate, a pin, a spring, and a bolt. It is characterized in that: The static pressure forming tool includes a fixed limit mechanism and a movable limit mechanism. The fixed limit mechanism is used to limit the positions of the lining plate and the pin, and at the same time make the pin protrude from the lining plate. The movable limit mechanism is used to limit the pin and the peg. When an external force acts on the movable limit mechanism, the peg inserted on the pin is flattened and deformed, thereby completing the upper lock body combination. Among them, the fixed limit mechanism includes a fixed seat and a limit mechanism. A cavity for accommodating the upper lock body is arranged inside the fixed seat, and the cavity communicates left and right. The limit mechanism is arranged at the left end of the cavity. When the upper lock body is placed in the cavity, the lining plate and the spring are limited in the cavity, and the pin and the peg protrude from the right end of the cavity. A notch is arranged at the right end of the fixed seat, and a groove is arranged on the upper surface of the notch for accommodating the part of the pin protruding from the cavity. The lower surface of the movable limit mechanism is adapted to the upper surface of the notch, and an arc-shaped groove is opened at its relative position with the groove for limiting the pin. The upper surface of the notch is close to the peg, thereby limiting and supporting the peg.

2. The hydrostatic forming tool for the upper lock body of the quick-release lock according to claim 1, characterized in that: The limit mechanism includes a retaining piece and a screw. A round hole is opened at one end of the retaining piece, and it is fixed to the entrance end of the cavity by the screw passing through the round hole. The other end of the retaining piece is a free end. When the upper lock body is placed in the cavity, rotating the retaining piece can block the upper lock body in the cavity of the fixed seat.

3. The hydrostatic forming tool for the upper lock body of the quick-release lock according to claim 1, characterized in that: Semicircular grooves are opened on both sides of the groove and the arc-shaped groove, and a discontinuous structure is adopted between the groove and the semicircular groove and between the arc-shaped groove and the semicircular groove.

4. The hydrostatic forming tool for the upper lock body of the quick-release lock according to claim 1, characterized in that: Connecting parts are arranged on both the fixed limit mechanism and the movable limit mechanism for connecting the power mechanism. When the fixed limit mechanism and the movable limit mechanism move towards each other under the action of the power mechanism, the peg is flattened and deformed.

5. The hydrostatic forming tool for the upper lock body of the quick-release lock according to claim 4, wherein: The power mechanism adopts a riveting machine, and the connecting parts are respectively arranged on the upper surface and the lower surface of the movable limit mechanism and the fixed limit mechanism.

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