Rapid assembly tool for steel cable baffle ring

Abstract

The invention discloses a steel cable baffle ring rapid assembling tool which comprises a positioning ring concentrically arranged on a part assembling hole in a sleeving mode, the inner ring face of the positioning ring is a conical face gradually shrinking from the outer end to the inner end, and the minimum inner diameter of the conical face is slightly smaller than the inner diameter of the part assembling hole. The maximum inner diameter of the conical surface is equal to the outer diameter of the steel cable baffle ring in a free state; the pressing head is concentrically arranged on the positioning ring in a sleeving manner, and the inner diameter of the pressing head is slightly larger than the middle diameter of the steel cable baffle ring in a free state; the guide sleeve is arranged on the pressure head and is tightly pressed on the steel cable baffle ring; and the outer diameter of the end surface, facing the steel cable baffle ring, of the guide sleeve is slightly smaller than the inner diameter of a part assembly hole. The steel cable baffle ring can be rapidly assembled into a ring groove, the workpiece assembling efficiency is greatly improved, and the inner wall of a part assembling hole cannot be damaged in the assembling process.

Description

Technical Field

[0001] The invention relates to an assembly tool in mechanical assembly, in particular to a quick assembly tool for a wire retaining ring. Background Art

[0002] The assembly of NDB518 wire retaining ring has been a bottleneck process since the trial production of the single pump. The diameter of the wire retaining ring is ￠3.5. The original assembly method is to use a homemade clamp to reduce the major diameter of the wire retaining ring to be equal to the diameter of the inner hole of the part, and then press the wire retaining ring into place with a pressure head. This solution requires two people to cooperate skillfully to assemble it in place, which takes a long time and the assembly quality is not good. The inner hole wall of the part is easily scratched, and it also requires a tacit understanding of the assembly workers. Summary of the invention

[0003] The object of the present invention is to provide a wire retaining ring quick assembly tool in view of the above-mentioned deficiencies and defects of the prior art, wherein the wire retaining ring quick assembly tool is easy to operate and improves work efficiency.

[0004] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0005] A wire retaining ring quick assembly tool, characterized in that it comprises:

[0006] A positioning ring is concentrically sleeved on the part assembly hole, the inner ring surface of the positioning ring is a tapered surface that gradually shrinks from the outer end to the inner end, the minimum inner diameter of the tapered surface is slightly smaller than the inner diameter of the part assembly hole, and the maximum inner diameter of the tapered surface is equal to the outer diameter of the wire retaining ring in a free state;

[0007] A pressure head is concentrically sleeved on the positioning ring and pressed against the wire retaining ring, wherein the diameter of the pressure head is slightly larger than the middle diameter of the wire retaining ring in a free state and slightly smaller than the inner diameter of the part assembly hole;

[0008] The guide sleeve is arranged on the positioning ring, and the guide inner diameter of the guide sleeve facing the wire retaining ring is slightly smaller than the inner diameter of the part assembly hole and slightly larger than the pressure head diameter.

[0009] In a preferred embodiment of the present invention, the outer side surface of the pressure head is connected to the outer side surface of the positioning ring by an annular step.

[0010] In a preferred embodiment of the present invention, a push rod is provided on the top of the guide sleeve.

[0011] The use process of the present invention is as follows:

[0012] Put the positioning ring on the part assembly hole, then install the wire snap ring at the maximum inner diameter position of the conical surface of the positioning ring and lay it flat. Put the guide sleeve on the step of the positioning ring and keep it coaxial. The pressing head passes through the inner hole of the guide sleeve and is guided by the inner hole of the guide sleeve to press on the wire snap ring. Slowly press down the pressing head. Under the action of the conical surface, the wire snap ring is gradually compressed. When the wire snap ring is pushed out of the conical surface by the pressing head, the wire snap ring is restricted on the inner wall of the part assembly hole after recovering a certain deformation. Continue to press down the pressing head until the wire snap ring moves to the annular groove position on the inner wall of the part assembly hole, and the wire snap ring freely opens, then the assembly is in place.

[0013] Due to the above technical solution, the present invention realizes the rapid assembly of the wire snap ring into the annular groove through the above operation method, greatly improving the workpiece assembly efficiency, and the inner wall of the part assembly hole will not be damaged during the assembly process. Brief Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the working state of an embodiment of the present invention.

[0016] Figure 2 is Figure 1 The enlarged view of part I of

[0017] Figure 3 It is a schematic diagram of the structure after the wire snap ring is assembled on the pump body. Detailed Embodiments

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below.

[0019] Refer to Figures 1 to 3 The shown wire snap ring rapid assembly tool includes a positioning ring 100, a pressing head 200 and a guide sleeve 300. The positioning ring 100 is concentrically sleeved on the part assembly hole 400. The inner ring surface of the positioning ring 100 is a conical surface 110 that gradually shrinks from the outer end to the inner end. The minimum inner diameter of the conical surface 110 is slightly smaller than the inner diameter of the part assembly hole 400, and the maximum inner diameter of the conical surface 110 is equal to the outer diameter of the wire snap ring 500 in the free state.

[0020] The indenter 200 is concentrically sleeved on the guide sleeve 300, and the inner diameter of the indenter 200 is slightly larger than the middle diameter of the wire snap ring 500 in the free state. To facilitate the assembly between the indenter 200 and the positioning ring 100, the outer side surface of the indenter 200 and the outer side surface of the positioning ring 100 are connected by an annular step limit 600.

[0021] It is arranged on the guide sleeve 300 and presses on the wire snap ring 500. The outer diameter of the end face of the guide sleeve 300 facing the wire snap ring 500 is slightly smaller than the inner diameter of the part assembly hole 400. A push rod 210 is also arranged at the top of the indenter 200.

[0022] The using process of the present invention is as follows:

[0023] The positioning ring 100 is sleeved on the part assembly hole 400, then the wire snap ring 500 is inserted into the position of the maximum inner diameter of the tapered surface 110 of the positioning ring 100 and laid flat. The guide sleeve 300 is concentrically sleeved on the positioning ring 100. Then the indenter 200 passes through the guide sleeve 300 and presses on the wire snap ring 500. At this time, the lower end face of the indenter 200 presses on the top of the wire snap ring 500, causing a certain compression of the wire snap ring 500. Slowly press down the indenter 200. Under the action of the tapered surface 110, the wire snap ring 500 is gradually compressed. When the wire snap ring 500 is pushed out of the tapered surface 110 by the indenter 200, after the wire snap ring 500 recovers a certain deformation, it is restricted on the inner wall of the part assembly hole 400. Continue to press down the indenter 200 until the wire snap ring 500 moves to the groove position 410 on the inner wall of the part assembly hole 400. At this time, the wire snap ring 500 freely expands. At this time, the shoulder surface 220 of the indenter contacts the upper plane of the guide sleeve 300, and the indenter 200 no longer moves downward, and the wire snap ring can be assembled in place.

[0024] Due to the adoption of the above technical solution, the present invention realizes the rapid assembly of the wire snap ring into the groove through the above operation method, greatly improving the workpiece assembly efficiency, and the inner wall of the part assembly hole will not be damaged during the assembly process.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick assembly tool for wire retaining rings, characterized in that, Comprising: A positioning ring concentrically sleeved on the part assembly hole, the inner ring surface of the positioning ring being a tapered surface that tapers from the outer end to the inner end, the minimum inner diameter of the tapered surface being slightly smaller than the inner diameter of the part assembly hole, and the maximum inner diameter of the tapered surface being equal to the outer diameter of the wire retaining ring in the free state; A press head concentrically sleeved on the positioning ring and pressing on the wire retaining ring, the diameter of the press head being slightly larger than the middle diameter of the wire retaining ring in the free state and slightly smaller than the inner diameter of the part assembly hole; A guide sleeve provided on the positioning ring, the guide inner diameter of the guide sleeve facing the wire retaining ring being slightly smaller than the inner diameter of the part assembly hole and slightly larger than the diameter of the press head.

2. The quick assembly tool for wire retaining rings according to claim 1, characterized in that, The outer side surface of the press head and the outer side surface of the positioning ring are limited and connected through an annular step.

3. The wire retaining ring quick assembly tool according to claim 1, characterized in that, The press head is limited by a step surface and is provided with a push rod at the top.

Images