Assembly tool for handle ejector rod guide sleeve assembly

Abstract

The utility model belongs to the field of production and assembly, and particularly relates to an assembly tool for a handle ejector rod guide sleeve assembly. The tool comprises a base, a positioning platform, a support, a pressing plate and a quick clamp. The appearance of the base is a cuboid, and three threaded mounting holes and two positioning pin holes are formed in the base; wherein the two threaded mounting holes and the two positioning pin holes are used for fixing the positioning platform. The pressing distance of the pressing plate is finely adjusted by adjusting the positions of the upper locking nut and the lower locking nut. When the ejector rod guide sleeve assembly and the handle are assembled, firstly, the ejector rod is placed in the positioning hole of the positioning platform, then the spring is placed in the ejector rod spring limiting groove, then the guide sleeve assembly penetrates through the ejector rod, at the moment, the quick clamp handle of the assembly tool is wrenched, the pressing plate presses the edge of the guide sleeve assembly tightly, the spring is compressed, and it is guaranteed that an installation hole in the ejector rod is completely exposed; at the moment, a handle is installed, it is guaranteed that an installation hole in the handle is aligned with an ejector rod installation hole, then a pin shaft penetrates into the handle, and then a split pin strand penetrates into a pin shaft installation hole, so that the ejector rod guide sleeve assembly and the handle are integrated.

Description

Technical Field

[0001] The utility model belongs to the field of production and assembly, and in particular relates to an assembly tool for a handle push rod and guide sleeve assembly. Background Art

[0002] The handle, push rod and guide sleeve assembly is an important part of the oxygen switch, mainly including the handle, push rod, guide sleeve assembly, spring, pin and cotter pin, such as Figure 1 As shown in the figure, the ejector pin and guide sleeve assembly have a clearance fit, ensuring free movement of the ejector pin within the guide sleeve. The spring must be positioned between the ejector pin and the guide sleeve assembly. The connection hole between the handle and the ejector pin is eccentric. Turning the handle moves the ejector pin upward; turning the handle the other way moves the ejector pin downward. The force of the ejector pin, in turn, acts on the valve assembly, thereby enabling the oxygen on-off function.

[0003] The current assembly process relies on two people: one person assembles the ejector pin, spring, and guide sleeve assembly and secures it with both hands; the other aligns the handle mounting hole with the ejector pin, inserts the pin, and then inserts the cotter pin into the pin hole to secure it. Because the oxygen switch components are small and difficult to handle, several components are still in place before assembly, and the springs are elastic, uneven force is applied during assembly, making it difficult to position the components and time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to provide an assembly tool for a handle push rod guide sleeve assembly, which can realize the assembly of the handle, push rod, guide sleeve assembly, spring, pin shaft and cotter pin, reduce manual operation, lower assembly difficulty and improve assembly efficiency.

[0005] The utility model provides an assembly tool for a handle push rod guide sleeve assembly, comprising: a base 1, a positioning platform 2, a pressing plate 3, a bracket 4 and a screw; the bracket 4 is L-shaped, comprising a vertical fixing portion and a horizontal extension portion;

[0006] The base 1 is a rectangular parallelepiped, and is provided with 3 threaded mounting holes and 2 positioning pin holes; 2 of the threaded mounting holes and 2 positioning pin holes are used to fix the positioning platform 2; the other threaded mounting hole is used to fix the vertical fixing portion of the bracket 4;

[0007] The positioning platform 2 is provided with a central through hole, and the push rod of the handle push rod guide sleeve assembly is inserted into the central through hole for positioning;

[0008] A threaded hole is reserved in the middle of the horizontal extension of the bracket 4 for installing the screw. The bottom of the screw is threaded with a pressure plate 3 and a locking nut. The pressure plate 3 is located above the positioning platform 2 and is used to compress the spring and guide sleeve assembly outside the top rod.

[0009] Optionally, the base 1, the positioning platform 2, the pressing plate 3 and the support 4 are all made of 45 steel and are formed by processing, and the parts are subjected to chemical passivation treatment.

[0010] Optionally, the positioning platform 2 and the pressing plate 3 are machined to ensure that the surface roughness is Ra1.6; and after machining, the positioning platform 2 and the pressing plate 3 need to be subjected to heat treatment to ensure that the HRC is 28-32.

[0011] Optionally, the positioning platform 2 is provided with two positioning pin holes, and is fixed to the base 1 through two austenitic stainless steel pins.

[0012] The positioning platform 2 is also provided with two threaded holes, and is fastened to the base 1 through two screws.

[0013] Optionally, the central through hole of the positioning platform 2 is in clearance fit with the ejector rod.

[0014] Optionally, the positioning platform 2 is a stepped column.

[0015] Optionally, the pressing plate 3 is U-shaped, the U-shaped opening size is greater than the outer diameter of the ejector rod, and the U-shaped arm is used for pressing the guide sleeve assembly.

[0016] Optionally, the screw rod is a quick clamp screw rod of the quick clamp 5.

[0017] The handle ejector rod guide sleeve assembly assembling tool has the following advantages:

[0018] 1. The number of operators is reduced; 2. The assembly difficulty is reduced; and 3. The assembly efficiency is improved. DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a schematic view of the handle ejector rod guide sleeve assembly;

[0021] Figure 2 It is a structural schematic view of the handle ejector rod guide sleeve assembly assembling tool provided by the present application;

[0022] Figure 3 It is a structural schematic view of the base;

[0023] Figure 4 It is a structural schematic view of the positioning platform;

[0024] Figure 5It is a structural diagram of the pressing plate;

[0025] Figure 6 is a schematic diagram of the structure of the bracket;

[0026] Description of reference numerals:

[0027] Base 1, positioning platform 2, pressing plate 3, bracket 4, screw 5. DETAILED DESCRIPTION

[0028] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. The following text is only used to describe one or several specific implementations of the present invention and does not strictly limit the scope of protection specifically claimed by the present invention.

[0029] The following is an explanation of the assembly tooling of the handle push rod guide sleeve assembly provided by the present invention in conjunction with the accompanying drawings.

[0030] The utility model provides an assembly tool for a handle push rod guide sleeve assembly, comprising: a base 1, a positioning platform 2, a pressing plate 3, a bracket 4 and a screw; the bracket 4 is L-shaped, comprising a vertical fixing portion and a horizontal extension portion;

[0031] The base 1 is a rectangular parallelepiped, and is provided with 3 threaded mounting holes and 2 positioning pin holes; 2 of the threaded mounting holes and 2 positioning pin holes are used to fix the positioning platform 2; the other threaded mounting hole is used to fix the vertical fixing portion of the bracket 4;

[0032] The positioning platform 2 is provided with a central through hole, and the push rod of the handle push rod guide sleeve assembly is inserted into the central through hole for positioning;

[0033] A threaded hole is reserved in the middle of the horizontal extension of the bracket 4 for installing the screw. The bottom of the screw is threaded with a pressure plate 3 and a locking nut. The pressure plate 3 is located above the positioning platform 2 and is used to compress the spring and guide sleeve assembly outside the top rod.

[0034] Optionally, the base 1, the positioning platform 2, the pressing plate 3, and the bracket 4 are all processed and formed by 45 steel, and the parts are chemically passivated.

[0035] Optionally, the positioning platform 2 and the pressing plate 3 are machined to ensure the surface roughness Ra1.6; after machining, heat treatment is required to ensure HRC28~32.

[0036] Optionally, two positioning pin holes are provided on the positioning platform 2, which is fixed to the base 1 by two austenitic stainless steel pins;

[0037] The positioning platform 2 is also provided with two threaded holes and is fastened to the base 1 with two screws.

[0038] Optionally, the central through hole of the positioning platform 2 is clearance-matched with the ejector rod.

[0039] Optionally, the positioning platform 2 is in the shape of a stepped column.

[0040] Optionally, the pressing plate 3 is U-shaped, the U-shaped opening size is larger than the outer diameter of the ejector rod, and the U-shaped arm is used to press the guide sleeve assembly.

[0041] Optionally, the screw is a quick-clamp screw of a quick-clamp 5 .

[0042] like Figure 2-6 As shown, the utility model provides an assembly tool for a handle push rod guide sleeve assembly, comprising: a base, a positioning platform, a pressing plate, a bracket and a screw;

[0043] The screw can be clamped with a quick clamp.

[0044] The base is a rectangular parallelepiped with three threaded mounting holes and two dowel pin holes. Two of the threaded holes and two dowel pin holes are used to secure the positioning platform; the other threaded hole is used to secure the bracket. The positioning platform is a circular boss with a center dowel hole. The bracket is L-shaped, with a central threaded hole for the manual clamp rod. The other end of the manual clamp rod connects to the U-shaped pressure plate and is secured with the manual clamp's locking nut. The downward pressure of the pressure plate can be fine-tuned by adjusting the position of the upper and lower locking nuts.

[0045] The tooling positioning platform is used to secure the ejector. First, insert the ejector into the limiting hole of the positioning platform. After the ejector is secured, install the spring into the limiting groove on the stepped surface of the ejector. Then, pass the guide sleeve assembly through the ejector. Now, pull the quick clamp handle of the assembly tooling to make the pressure plate press against the edge of the guide sleeve assembly, compressing the spring (the original length of the spring is 27mm, and it needs to be compressed to at least 11.8mm) to ensure that the mounting hole on the ejector is completely exposed. Now install the handle, ensuring that the mounting hole on the handle is aligned with the mounting hole of the ejector, and then insert the pin. Then, insert the cotter pin into the pin mounting hole to integrate the ejector guide sleeve assembly with the handle. This allows for rapid assembly of the handle, ejector, guide sleeve assembly, spring, pin, and cotter pin.

[0046] Example 1

[0047] The technical solution of the utility model is to provide a mandrel guide sleeve assembly and a handle assembly tool, such as Figure 2-6 As shown, the tooling for assembling the ejector guide sleeve assembly and handle includes: a base 1, a positioning platform 2, a pressure plate 3, a bracket 4, and a quick-action clamp 5. Once the tooling is assembled, the downward pressure distance of the pressure plate can be fine-tuned by adjusting the position of the upper and lower locking nuts. The tooling is primarily used for assembling the ejector guide sleeve assembly and handle.

[0048] When assembling the ejector guide sleeve assembly and the handle, first insert the ejector into the limiting hole of the positioning platform. After the ejector is fixed, install the spring into the limiting groove on the step surface of the ejector. Then, pass the guide sleeve assembly through the ejector. At this time, pull the quick clamp handle of the assembly tool to make the pressure plate press the edge of the guide sleeve assembly, compress the spring (the original length of the spring is 27mm, and it needs to be compressed to at least 11.8mm) to ensure that the mounting hole on the ejector is completely exposed. At this time, install the handle, ensure that the mounting hole on the handle is aligned with the mounting hole of the ejector, and then insert the pin. Then use the cotter pin to insert the pin mounting hole to make the ejector guide sleeve assembly and handle become one. This achieves rapid assembly of the handle, ejector, guide sleeve assembly, spring, pin, and cotter pin.

[0049] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. An assembly tool for a handle push rod guide sleeve assembly, characterized in that: include: A base (1), a positioning platform (2), a pressing plate (3), a bracket (4) and a screw; the bracket (4) is L-shaped and includes a vertical fixing portion and a horizontal extension portion; The base (1) is a rectangular parallelepiped, and is provided with three threaded mounting holes and two positioning pin holes; two of the threaded mounting holes and the two positioning pin holes are used to fix the positioning platform (2); and the other threaded mounting hole is used to fix the vertical fixing portion of the bracket (4); The positioning platform (2) is provided with a central through hole, and the push rod of the handle push rod guide sleeve assembly is inserted into the central through hole for positioning; A threaded hole is reserved in the middle of the horizontal extension of the bracket (4) for installing a screw rod. The bottom of the screw rod is threadedly installed with a pressure plate (3) and a locking nut. The pressure plate (3) is located above the positioning platform (2) and is used to compress the spring and guide sleeve assembly arranged outside the top rod.

2. The assembly tool according to claim 1, characterized in that: The base (1), the positioning platform (2), the pressing plate (3), and the bracket (4) are all formed by processing 45 steel, and the parts are chemically passivated.

3. The tooling according to claim 2, characterized in that: The positioning platform (2) and the pressing plate (3) are machined to ensure a surface roughness of Ra1.6; after machining, heat treatment is required to ensure HRC28-32.

4. The tooling according to claim 1, characterized in that: The positioning platform (2) is provided with two positioning pin holes and is fixed to the base (1) via two austenitic stainless steel pins; The positioning platform (2) is also provided with two threaded holes and is fastened to the base (1) with two screws.

5. The tooling according to claim 1, characterized in that: The central through hole of the positioning platform (2) is clearance-matched with the ejector rod.

6. The tooling according to claim 1, characterized in that: The positioning platform (2) is in the shape of a stepped column.

7. The tooling according to claim 1, characterized in that: The pressing plate (3) is U-shaped, the U-shaped opening size is larger than the outer diameter of the ejector rod, and the U-shaped arm is used for pressing the guide sleeve assembly.

8. The tooling according to claim 1, characterized in that: The screw rod is a quick clamp screw rod of a quick clamp (5).

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