An open pin assembly tool and device

Abstract

The utility model provides a kind of cotter pin assembly tool and device, it is related to pin assembly technical field.The cotter pin assembly tool includes: the installation plate being provided with first socket, and the fixed mechanism with fixed seat;Fixed seat is arranged on installation plate, and the side of fixed seat is provided with inserting block;Inserting block is inserted and is arranged in first socket;And fixed seat inside is provided with spring peg;The side of fixed seat away from installation plate is provided with first recess, and the bottom of first recess is provided with the first through-hole for spring peg to stretch out and retract;And installation plate is placed with support seat;The side of support seat away from installation plate is provided with second recess;Wherein, first recess and second recess are all with the shape of the piece to be assembled shape adaptation, when the piece to be assembled is placed in first recess and second recess, spring peg can be aligned and pass through the pin hole on the piece to be assembled.The utility model is simple to operate, and can accurately and efficiently assemble skin air shutter cotter pin.

Description

Technical Field

[0001] This utility model relates to the field of pin assembly technology, specifically to a cotter pin assembly tooling and device. Background Technology

[0002] There are two part numbers for the skin air valve: a skin air inlet valve and a skin air outlet valve. They are used in the aircraft's air conditioning system. The core function of the skin air valve is to automatically regulate the intake and exhaust of outside air (skin air) based on flight status and environmental conditions. This ensures that the computers and various electronic devices in the avionics bay remain within their normal operating temperature range. It also has a significant impact on the aircraft's pressurization system. The reliability of skin-mounted air valves is crucial. Common malfunctions include valve jamming in a certain position or position sensor failure. For example, if an exit valve unexpectedly becomes completely jammed in the open position in mid-air, it can prevent the cabin from pressurizing properly, potentially leading to serious incidents such as a return to base. However, in existing technology, the cotter pins of skin-mounted air valves serve to secure components such as universal joint links and actuators. These cotter pins are cylindrical, have openings on the sides, are small, and are difficult to install. Current tooling methods often deform the cotter pins, affecting mechanical transmission and causing accessory malfunctions. Therefore, designing a suitable tooling for assembling cotter pins is particularly important. Utility Model Content

[0003] This invention addresses the problem that cotter pins on skin-covered air valves are difficult to install and prone to deformation during installation, thus affecting mechanical transmission and causing accessory malfunctions. It provides a simple, accurate, and efficient cotter pin assembly tooling and device for skin-covered air valves.

[0004] The technical solution adopted in this utility model is: A cotter pin assembly fixture, comprising: The mounting plate has a first connector. A fixing mechanism includes at least a fixing seat, which is disposed on the mounting plate. A plug-in block is provided on one side of the fixing seat. The plug-in block is inserted into the first socket. A spring nail is provided inside the fixing seat. A first groove is provided on the side of the fixing seat away from the mounting plate. A first through hole is provided at the bottom of the first groove for the spring nail to extend and retract. A support base is placed on the mounting plate; a second groove is provided on the side of the support base away from the mounting plate; The first and second grooves are both adapted to the shape of the part to be installed. When the part to be installed is placed in the first and second grooves, the spring pin can be aligned and pass through the pin hole on the part to be installed.

[0005] Furthermore, a boss is provided on the side of the support base away from the mounting plate; the first groove is provided on the boss.

[0006] Furthermore, on the mounting plate, at least two first screw holes are provided on both sides of the first socket; on the fixing base, at least two second screw holes are provided on both sides of the boss; the two first screw holes and the two second screw holes are connected by bolts.

[0007] Furthermore, at least two alignment posts are provided on the boss, located on one side of the first groove; and the fixing mechanism further includes a mating fastener and a pressure tool; the mating fastener is provided with a third groove, and the bottom of the third groove is provided with a second through hole penetrating the mating fastener, and the pressure tool is slidably disposed in the second through hole; at least two alignment holes are provided on the mating fastener, located on one side of the third groove. When the two alignment posts are inserted into the two alignment holes, the third groove and the first groove are aligned, and the second through hole and the first through hole are aligned.

[0008] Furthermore, a third screw hole is provided on the boss, located between the two alignment posts; a fourth screw hole is provided on the mating fastener, located between the two alignment holes, such that when the two alignment posts are inserted into the two alignment holes, the third screw hole and the fourth screw hole are aligned.

[0009] Furthermore, both the inner wall of the second through hole and the outer wall of the press are provided with diameter-changing steps; and the diameter-changing steps on the inner wall of the second through hole and the diameter-changing steps on the outer wall of the press are adapted to each other.

[0010] A cotter pin assembly device, comprising: A press, having at least a base, a support rod, and a lifting mechanism; the base and the lifting mechanism are respectively disposed at both ends of the support rod; The cotter pin assembly fixture described above is provided on the base.

[0011] Furthermore, a pressure head is slidably disposed within a slide rail on the lifting mechanism; an operating lever is disposed on one side of the lifting mechanism, and the operating lever is capable of controlling the lifting and lowering of the pressure head.

[0012] Furthermore, the pressure head includes a sliding section and an abutting section; the sliding section is slidably disposed within a slide rail on the lifting mechanism; the abutting section is disposed below the sliding section; and the diameter of the sliding section is larger than the diameter of the abutting section.

[0013] Furthermore, a sliding plate is provided on the pressure head; an L-shaped slide rod is provided on the lifting mechanism, the short side of the L-shaped slide rod is connected to the sliding plate through a lifting spring; and the sliding plate is slidably sleeved on the long side of the L-shaped slide rod through a sliding hole on one side.

[0014] The beneficial effects of this utility model are: 1. The assembly fixture of this utility model, by setting an mounting plate, enables the fixing mechanism and the support base to work on a common stable plane; the first groove on the fixing base and the second groove on the support base work together to keep the universal joint connecting rod in a stable position; and the spring pins on the fixing base that can extend and retract position the pin holes on the actuator and the universal joint connecting rod, thereby achieving accurate and efficient assembly of the cotter pin of the skin air valve. This solves the problem in the prior art that the cotter pin of the skin air valve is not easy to install, is easily deformed during installation, and thus affects the mechanical transmission and causes the accessory to fail. 2. The assembly device of this utility model, by setting an mounting plate on the base of the press, allows the fixing mechanism and the support to work on a common stable plane; the first groove on the fixing seat and the second groove on the support seat work together to keep the universal joint connecting rod in a stable position; then, the spring pins on the fixing seat that can extend and retract are used to position the pin holes on the actuator and the universal joint connecting rod, and the press head of the press is used to install the cotter pin, thus realizing the accurate and efficient assembly of the cotter pin of the skin air valve, thereby solving the problem in the prior art that the cotter pin of the skin air valve is not easy to install, is easy to deform during the installation process, thus affecting the mechanical transmission and causing the accessory to fail. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the assembly device according to an embodiment of the present utility model; Figure 2 This is a top view of the mounting plate of Embodiment 1 of this utility model; Figure 3 This is a three-dimensional schematic diagram of the fixing base of Embodiment 1 of this utility model; Figure 4 This is a three-dimensional schematic diagram of the assembly tooling in Embodiment 3 of this utility model; Figure 5 This is a front view of the assembly tooling of Embodiment 3 of this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a three-dimensional schematic diagram of the fixing base of Embodiment 3 of this utility model; Figure 8 This is a three-dimensional schematic diagram of the fastening component in Embodiment 3 of this utility model.

[0017] Reference numerals: 100-Fixing mechanism, 110-Fixing base, 111-Adjusting plane, 112-Boss, 113-First groove, 114-Spring pin, 115-First through hole, 116-Alignment post, 117-Third screw hole, 118-Plug-in block, 119-Second screw hole, 120-Mating fastener, 121-Third groove, 123-Second through hole, 125-Alignment hole, 127-Fourth screw hole, 130-Pressure tool; 200 - Support base, 210 - Second groove; 300 - Mounting plate, 310 - First socket, 320 - First screw hole; 410-Base, 420-Support rod, 430-Lifting mechanism, 440-Pressure head, 442-Sliding section, 444-Abutting section, 443-Sliding plate, 450-L-shaped slide bar, 460-Operating lever, 470-Lifting spring. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0020] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.

[0021] Example 1

[0022] The cotter pin of a skinned air valve serves to secure components such as the universal joint linkage and actuator. However, the cotter pin is cylindrical with an opening on the side, small in size, and difficult to install. Current tooling methods often cause cotter pin deformation, affecting mechanical transmission and leading to accessory malfunction. Therefore, designing a suitable tooling for assembling the cotter pin is crucial.

[0023] To address the aforementioned problems in the prior art, this embodiment provides a cotter pin assembly fixture for assembling the cotter pin between the universal joint link and the actuator of a skinned air valve. This cotter pin assembly fixture is simple to operate and can accurately and efficiently assemble the cotter pin of a skinned air valve. Please refer to... Figures 1-3 The cotter pin assembly fixture of this embodiment is suitable for use with pressing equipment such as presses. The cotter pin assembly fixture mainly includes: a fixing mechanism 100, a support base 200, and a mounting plate 300.

[0024] The mounting plate 300 is roughly rectangular in shape and is fixedly mounted on the base 410 of the press. It is used to set up the fixing mechanism 100 and the support base 200, allowing them to work on the same plane. Figure 1 , Figure 2 As shown, a circular first socket 310 is provided at the center of the upper surface of the mounting plate 300.

[0025] The fixing mechanism 100 is used to fix the universal joint connecting rod and the part of the actuator where the pin holes are located. The fixing mechanism 100 mainly includes a fixing seat 110, etc. The main body of the fixing seat 110 is roughly cylindrical in shape, and a boss 112, roughly cuboid in shape, is provided on the top of the main body. A first groove 113 is provided on the top of the boss 112. The cross-sectional shape of the first groove 113 is semi-circular, which is adapted to the shape and size of the universal joint connecting rod, and is used to place the universal joint connecting rod and restrict its movement. At the same time, a spring pin 114 is provided in the internal cavity of the fixing seat 110. A first through hole 115 communicating with the internal cavity of the fixing seat 110 is provided at the bottom of the first groove 113. The spring pin 114 can enter and exit the internal cavity of the fixing seat 110 through the first through hole 115, and is adapted to the pin holes to be installed on the universal joint connecting rod and the actuator, so as to position the pin holes. Furthermore, a plug-in block 118 is provided at the bottom of the main body of the fixing base 110 opposite to the boss 112. The plug-in block 118 is adapted to the first socket 310 and can be inserted into the first socket 310 to assemble the fixing mechanism 100 and the mounting plate 300.

[0026] The support base 200 is used to place the other end of the universal joint link to be installed, opposite to the part containing the pin hole, thereby maintaining the overall balance of the universal joint link and the actuator. The upper surface of the support base 200 is provided with a second groove 210 adapted to the shape of the universal joint link. The cross-sectional shape of the second groove 210 is semi-circular, which is used to place the universal joint link and restrict its movement, thereby improving overall stability.

[0027] One specific working method of this embodiment is as follows: First, fix the mounting plate 300 onto the base 410 of the press, and install the fixing seat 110 on the upper surface of the mounting plate 300. Next, align the pin holes on the actuator and the universal joint link to engage them. Then, align the pin holes on the actuator and the universal joint link with the first through hole 115 on the fixing seat 110, so that the spring pin 114 enters the pin hole to position it. After that, place the support seat 200 on the mounting plate 300, and place the other end of the universal joint link opposite to the part with the pin hole to be installed on the support seat 200. Then, use the press to press down, press the cotter pin into the pin hole of the actuator and the universal joint link, and push the spring pin 114 out of the pin hole, thus completing the connection between the actuator and the universal joint link.

[0028] In this embodiment, the cotter pin assembly fixture, by setting the mounting plate 300, enables the fixing mechanism 100 and the support base 200 to work on a common stable plane; the first groove 113 on the fixing base 110 and the second groove 210 on the support base 200 cooperate to keep the universal joint connecting rod in a stable position; and the spring pin 114 on the fixing base 110, which can extend and retract, positions the pin holes on the actuator and the universal joint connecting rod, thereby realizing the accurate and efficient assembly of the cotter pin of the skin air valve. This solves the problem in the prior art that the cotter pin of the skin air valve is not easy to install, is easily deformed during the installation process, and thus affects the mechanical transmission and causes the accessory function to fail.

[0029] Furthermore, in this embodiment, two first screw holes 320 are symmetrically arranged on the upper surface of the mounting plate 300, located on both sides of the first socket 310; and two second screw holes 119 are symmetrically arranged on the main body of the fixing seat 110, located on both sides of the boss 112. The two first screw holes 320 and the two second screw holes 119 are compatible and can be connected by bolts, thereby enabling the fixing seat 110 to be stably installed on the mounting plate 300.

[0030] Furthermore, in this embodiment, an adjustment plane 111 is provided on one side of the side wall of the main body of the fixing seat 110, which facilitates the adjustment of the direction of the fixing seat 110 on the mounting plate 300 during the installation of the fixing seat 110, and quickly aligns the two first screw holes 320 and the two second screw holes 119.

[0031] Example 2 A second embodiment is provided below, based on the above embodiments and further improved upon them. Please refer to... Figure 1 and Figure 4 The second embodiment proposes a cotter pin assembly device, which mainly includes a press and the cotter pin assembly fixture in the above embodiment.

[0032] like Figure 1 , Figure 4 As shown, the press in this embodiment is mainly used to press cotter pins into the pin holes on the actuator and universal joint connecting rod. The press mainly includes a base 410, a support rod 420, and a lifting mechanism 430. The base 410 is located at the bottom of the press and is roughly rectangular in shape, serving as a support structure for the bottom of the press and also for mounting the mounting plate 300 of the cotter pin assembly fixture. The support rod 420 is vertically arranged, with one end located on one side of the base 410 and the other end connected to the lifting mechanism 430. The main body of the lifting mechanism 430 is mounted on the upper end of the support rod 420 via a sleeve on one side; a press head 440 is slidably arranged in a slide rail on the lifting mechanism 430. Meanwhile, an operating lever 460 is provided on one side of the lifting mechanism 430. The operating lever 460 is linked with the transmission components inside the lifting mechanism 430, enabling control of the lifting and lowering of the press head 440, allowing the user to perform convenient and labor-saving operation.

[0033] Furthermore, the pressure head 440 includes a sliding section 442 and an abutment section 444. The sliding section 442 has a larger diameter and is slidably disposed within a track on the lifting mechanism 430; the abutment section 444 has a smaller diameter and is disposed below the sliding section 442, used to contact the cotter pin and apply pressure. The smaller diameter of the abutment section 444 facilitates close alignment of their axes when aligned with the cotter pin, preventing imbalance between the cotter pin and the workpiece during downward pressure.

[0034] Furthermore, a sliding plate 443 is also provided on the sliding section 442 of the press head 440; and an L-shaped slide rod 450 is also provided above the lifting mechanism 430. The short side of the L-shaped slide rod 450 is connected to the sliding plate 443 through a lifting spring 470; at the same time, the sliding plate 443 is slidably sleeved on the long side of the L-shaped slide rod 450 through a sliding hole on one side, thereby preventing the press head 440 from undergoing additional deflection and displacement during the lifting and lowering movement, which would affect the normal operation of the press.

[0035] In this embodiment, the cotter pin assembly device uses a mounting plate 300 on the base 410 of the press to allow the fixing mechanism 100 and the support 200 to work on a common stable plane. The first groove 113 on the fixing seat 110 and the second groove 210 on the support 200 work together to maintain the universal joint linkage in a stable position. The telescopic spring pin 114 on the fixing seat 110 positions the pin holes on the actuator and the universal joint linkage. The press head 440 of the press is used to install the cotter pin, achieving accurate and efficient assembly of the skin air valve cotter pin. This solves the problem in the prior art where the cotter pin of the skin air valve is difficult to install, easily deformed during installation, affecting mechanical transmission and causing accessory malfunction.

[0036] Example 3 A further improvement upon the first embodiment, the third embodiment provides another cotter pin assembly fixture for assembling the cotter pin between the two connecting rods of the universal joint of a skinned air valve. (See also...) Figures 4-8 The cotter pin assembly fixture in the third embodiment also mainly includes: a fixing mechanism 100, a support base 200, and a mounting plate 300. The main difference between the third embodiment and the first embodiment lies in the fixing mechanism 100.

[0037] In this embodiment, to fix the two connecting rods that are prone to sliding and shifting, the fixing mechanism 100 mainly includes a fixing seat 110, a mating fixing member 120, and a pressure fixture 130. In this embodiment, the fixing seat 110, based on the first embodiment, also has two alignment posts 116 on the boss 112, located on one side of the first groove 113. The mating fixing member 120 is roughly rectangular in shape, and a third groove 121 is provided on one side of the mating fixing member 120. The cross-sectional shape of the third groove 121 is semi-circular, adapted to the shape and size of the universal joint connecting rod, and used to combine with the first groove 113 to restrict the movement of the universal joint connecting rod. A second through hole 123 is provided at the bottom of the third groove 121, penetrating the mating fixing member 120. Two alignment holes 125 are provided on the mating fixing member 120, located on one side of the third groove 121. During use, the fixing member 120 keeps the third groove 121 facing downwards. When the two alignment pins 116 are inserted into the two alignment holes 125, the third groove 121 and the first groove 113 are aligned, and the second through hole 123 and the first through hole 115 are aligned. Furthermore, the pressure tool 130 is slidably disposed in the second through hole 123. The end of the pressure tool 130 away from the first groove 113 can contact the pressure head 440 on the press and receive force. The end of the pressure tool 130 near the first groove 113 is used to abut against the cotter pin and push it into the pin hole.

[0038] Furthermore, in this embodiment, a third screw hole 117 is provided on the boss 112, located between the two aligning posts 116; and a fourth screw hole 127 is provided on the mating fastener 120, located between the two aligning holes 125. When the fixing seat 110 and the mating fastener 120 are combined, and the two aligning posts 116 are inserted into the two aligning holes 125, the third screw hole 117 and the fourth screw hole 127 are aligned. By providing bolts that pass through both, the tightness of the combination of the fixing seat 110 and the mating fastener 120 can be improved, preventing the workpiece from deviating during operation.

[0039] Furthermore, in this embodiment, both the inner wall of the second through hole 123 and the outer wall of the press 130 are provided with diameter-changing steps, which divide the second through hole 123 and the press 130 into two segments with different diameters, and these segments are mutually compatible. Therefore, when the press 130 slides inside the second through hole 123, it will not pass through the second through hole 123, preventing the press 130 from falling into the outlet hole during operation and affecting the normal operation of the tooling.

[0040] In one or more other embodiments, the cotter pin assembly fixture may have both the first and third embodiment fixing mechanisms 100, thereby simultaneously meeting the installation needs of cotter pins at different positions of the skin air valve.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cotter pin assembly fixture, characterized in that, Include: Mounting plate (300) is provided with first socket (310); The fixing mechanism (100) has at least a fixing seat (110) which is disposed on the mounting plate (300). A plug-in block (118) is provided on one side of the fixing seat (110). The plug-in block (118) is inserted into the first socket (310). A spring nail (114) is provided inside the fixing seat (110). A first groove (113) is provided on the side of the fixing seat (110) away from the mounting plate (300). A first through hole (115) is provided at the bottom of the first groove (113) for the spring nail (114) to extend and retract. A support base (200) is placed on the mounting plate (300); a second groove (210) is provided on the support base (200) on the side away from the mounting plate (300). The first groove (113) and the second groove (210) are both adapted to the shape of the part to be installed. When the part to be installed is placed in the first groove (113) and the second groove (210), the spring nail (114) can be aligned and pass through the pin hole on the part to be installed.

2. The cotter pin assembly fixture as described in claim 1, characterized in that, A boss (112) is provided on the side of the support base (200) away from the mounting plate (300); the first groove (113) is provided on the boss (112).

3. The cotter pin assembly fixture as described in claim 2, characterized in that, At least two first screw holes (320) are provided on the mounting plate (300) and on both sides of the first socket (310); at least two second screw holes (119) are provided on the fixing base (110) and on both sides of the boss (112); the two first screw holes (320) and the two second screw holes (119) are connected by bolts.

4. The cotter pin assembly fixture as described in claim 2, characterized in that, At least two alignment posts (116) are provided on the boss (112) and located on one side of the first groove (113); and the fixing mechanism (100) further includes a mating fixing member (120) and a pressure tool (130); a third groove (121) is provided on the mating fixing member (120), and a second through hole (123) penetrating the mating fixing member (120) is provided at the bottom of the third groove (121), and the pressure tool (130) is slidably disposed in the second through hole (123); at least two alignment holes (125) are provided on the mating fixing member (120) and located on one side of the third groove (121). When the two alignment posts (116) are inserted into the two alignment holes (125), the third groove (121) and the first groove (113) are aligned, and the second through hole (123) and the first through hole (115) are aligned.

5. The cotter pin assembly fixture as described in claim 4, characterized in that, A third screw hole (117) is provided on the boss (112) and located between the two alignment posts (116); a fourth screw hole (127) is provided on the mating fastener (120) and located between the two alignment holes (125). When the two alignment posts (116) are inserted into the two alignment holes (125), the third screw hole (117) and the fourth screw hole (127) are aligned.

6. The cotter pin assembly fixture as described in claim 4, characterized in that, The inner wall of the second through hole (123) and the outer wall of the press (130) are both provided with a diameter-changing step; and the diameter-changing step on the inner wall of the second through hole (123) and the diameter-changing step on the outer wall of the press (130) are adapted to each other.

7. A cotter pin assembly device, characterized in that, Include: The press has at least a base (410), a support rod (420), and a lifting mechanism (430); the base (410) and the lifting mechanism (430) are respectively disposed at both ends of the support rod (420); The cotter pin assembly fixture as described in any one of claims 1-6 is disposed on the base (410).

8. The cotter pin assembly device as described in claim 7, characterized in that, A pressure head (440) is slidably disposed in the slide rail of the lifting mechanism (430); an operating lever (460) is provided on one side of the lifting mechanism (430), and the operating lever (460) can control the lifting and lowering of the pressure head (440).

9. The cotter pin assembly device as described in claim 8, characterized in that, The pressure head (440) includes a sliding section (442) and an abutting section (444); the sliding section (442) is slidably disposed in a slide rail on the lifting mechanism (430); the abutting section (444) is disposed below the sliding section (442); and the diameter of the sliding section (442) is larger than the diameter of the abutting section (444).

10. The cotter pin assembly device as described in claim 8, characterized in that, The pressure head (440) is provided with a sliding plate (443); the lifting mechanism (430) is provided with an L-shaped slide rod (450), the short side of the L-shaped slide rod (450) is connected to the sliding plate (443) through a lifting spring (470); and the sliding plate (443) is slidably sleeved on the long side of the L-shaped slide rod (450) through a sliding hole on one side.

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