Assembly tool for handle ejector rod guide sleeve assembly

Abstract

The invention 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; and the other threaded mounting hole is used for fixing the bracket. The positioning platform is a circular boss and is provided with a positioning hole in the middle. The bracket is L-shaped, and a quick clamp ejector rod mounting threaded hole is reserved in the middle of the bracket; and the other end of the quick clamp screw rod is connected with a U-shaped pressing plate and is fixed by a locking nut on the quick clamp. 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 invention belongs to the field of production and assembly, and in particular relates to an assembly tool for a handle push rod 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. The ejector rod and the guide sleeve assembly are clearance fit, and the ejector rod must be able to move freely in the guide sleeve. The spring must be set between the ejector rod and the guide sleeve assembly. The connection hole between the handle and the ejector rod is an eccentric hole. By pulling the handle, the ejector rod moves upward; by pulling the handle in the other direction, the ejector rod moves downward. The force of the ejector rod acts on the valve assembly, thereby realizing the on-off function of oxygen.

[0003] The existing assembly mainly relies on the cooperation of two employees. One person assembles the ejector, spring and guide sleeve assembly and holds them tightly with both hands; the other person aligns the handle mounting hole with the ejector mounting hole and inserts the pin, then inserts the split pin into the pin hole and locks it. Because the components of the oxygen switch are very small in size and difficult to hold, several components are in an active state before assembly, and the spring has elastic force, so the force is uneven during assembly, making it difficult to position the parts and assembling them time-consuming and laborious. Summary of the invention

[0004] The purpose of the present invention is to provide an assembly tool for a handle push rod guide sleeve assembly to realize the assembly of a handle, a push rod, a guide sleeve assembly, a spring, a pin shaft and a cotter pin, thereby reducing manual operations, lowering assembly difficulty and improving assembly efficiency.

[0005] The present invention provides an assembly tool for a handle mandrel 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 threaded mounting holes and 2 positioning pin holes are used to fix the positioning platform 2; and the other threaded mounting hole is used to fix the vertical fixing part 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 a screw rod. The bottom of the screw rod 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 arranged outside the top rod.

[0009] Optionally, 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.

[0010] 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.

[0011] Optionally, two positioning pin holes are provided on the positioning platform 2, and are fixed to the base 1 by two austenitic stainless steel pins;

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

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

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

[0015] 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.

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

[0017] The advantages of the present invention are: the present invention provides an assembly tool for a handle push rod guide sleeve assembly, which has the following advantages:

[0018] 1. Reduced the number of operators; 2. Reduced assembly difficulty; 3. Improved assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the handle push rod guide sleeve assembly;

[0021] Figure 2 A schematic structural diagram of an assembly tool for a handle push rod guide sleeve assembly provided by the present invention;

[0022] Figure 3 is a schematic diagram of the structure of the base;

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

[0024] Figure 5 It is a structural schematic 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 specifically described below in conjunction with the embodiments. The following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the protection scope of the specific claims of the present invention.

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

[0030] The present invention provides an assembly tool for a handle mandrel 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 threaded mounting holes and 2 positioning pin holes are used to fix the positioning platform 2; and the other threaded mounting hole is used to fix the vertical fixing part 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 a screw rod. The bottom of the screw rod 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 arranged outside the top rod.

[0034] Optionally, 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.

[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, and are 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 present invention 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 rod;

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

[0044] The base is a rectangular block with three threaded mounting holes and two positioning pin holes. Two of the threaded mounting holes and two positioning pin holes are used to fix the positioning platform. The other threaded mounting hole is used to fix the bracket. The positioning platform is a circular boss with a positioning hole in the middle. The bracket is "L" shaped, with a threaded hole reserved in the middle for the quick clamp top rod to install. The other end of the quick clamp screw is connected to the "U" shaped pressure plate and fixed with the locking nut on the quick clamp. The downward pressure distance 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 fix the ejector. 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, and then pass the guide sleeve assembly through the ejector. At this time, pull the quick clamp handle of the assembly tooling 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), and 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 shaft, and then use the split pin to penetrate the pin shaft mounting hole to make the ejector guide sleeve assembly and the handle become one. This realizes the rapid assembly of the handle, ejector, guide sleeve assembly, spring, pin shaft and split pin.

[0046] Example 1

[0047] The technical solution of the present invention 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 the handle includes: a base 1, a positioning platform 2, a pressure plate 3, a bracket 4 and a quick clamp 5; after the tooling is assembled, the downward pressing distance of the pressure plate can be fine-tuned by adjusting the positions of the upper and lower locking nuts. The tooling is mainly used for assembling the ejector guide sleeve assembly and the handle.

[0048] When assembling the push rod guide sleeve assembly and the handle, first insert the push rod into the limiting hole of the positioning platform, and then install the spring into the limiting groove on the step surface of the push rod after the push rod is fixed, and then pass the guide sleeve assembly through the push rod. 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), and ensure that the mounting hole on the push rod 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 push rod, and then insert the pin shaft, and then use the split pin to penetrate the pin shaft mounting hole to make the push rod guide sleeve assembly and the handle become one. This realizes the rapid assembly of the handle, push rod, guide sleeve assembly, spring, pin shaft and split pin.

[0049] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

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 rod; 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 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 surface roughness of the positioning platform (2) and the pressure plate (3) is guaranteed to be Ra1.6 during machining; 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) by 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 to press 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).

Images