Snap ring part installation tool

Abstract

The utility model provides a snap ring part installation tool, which belongs to the technical field of snap ring assembly and comprises a guide shaft, a fixed disc and a pressure disc, the pressure disc is sleeved on the outer side of the guide shaft, and the front end of the pressure disc extends to the middle of the guide shaft; the fixing disc sleeves the outer side of the guide shaft and is located in front of the pressing disc, the fixing disc and the guide shaft move relatively, the rear end of the fixing disc is made to be close to or away from the pressing disc, a guide groove with a forward notch is formed in the end, away from the pressing disc, of the fixing disc, and the notch of the guide groove is used for containing a clamping ring; a pushing disc is arranged at the front end of the guide shaft and attached to the inner wall of the guide groove in a sliding mode. The snap ring part mounting tool is easy to operate, high in mounting and matching consistency and suitable for a structure with a compact internal space, the problem that a snap ring in an air compressor is inconvenient to mount is solved, the assembling efficiency of the snap ring in the air compressor is improved, and therefore the machining and manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the clasp ring assembly technical field, more specifically, relate to a clasp ring part installation frock. BACKGROUND

[0002] The air compressor product structure is compact in the industry, the internal space is limited, the ordinary clasp ring pliers are extremely easy to slip from the head of the clasp ring pliers when installing and disassembling, lead to the traditional clasp ring pliers unable to complete the clasp ring disassembly in the narrow space, there is the phenomenon that the air compressor shell is scratched and the assembly efficiency is low when the clasp ring is assembled. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of clasp ring part installation frock, to solve the problem that clasp ring is not convenient to install in air compressor, improve clasp ring assembly efficiency.

[0004] To achieve the above object, the technical scheme adopted by the utility model is as follows: provide a kind of clasp ring part installation frock, including guide shaft, fixed disc and pressure plate, the pressure plate is set on the outside of the guide shaft, the front end of the pressure plate extends to the middle part of the guide shaft;The fixed disc is set on the outside of the guide shaft and located in front of the pressure plate, the fixed disc and the guide shaft are relatively moved, so that the rear end of the fixed disc is close to or away from the pressure plate, the fixed disc is provided with the guide groove of notch towards front in one end away from the pressure plate, and the notch of the guide groove is used to accommodate clasp ring;The front end of the guide shaft is provided with push plate, and the push plate is slidably attached to the inner wall of the guide groove;

[0005] The fixed disc is abutted on the end of the shell to be installed, and the guide groove is corresponded with the limiting groove in the shell to be installed, the pressure plate drives the guide shaft to be relatively moved, until the push plate pushes the clasp ring in the guide groove into the limiting groove, at this time, the pressure plate is attached to the tail end of the fixed disc, to avoid the guide shaft from being pulled out.

[0006] As another embodiment of the application, the front end of the guide groove is provided with a ring groove, the inner diameter of the ring groove is greater than the inner diameter of the guide groove, the ring groove and the guide groove form a limiting step, and the clasp ring is located in the ring groove and the rear end of the clasp ring is abutbed on the limiting step.

[0007] As another embodiment of the application, the end face of the front end of the fixed disc includes an abutting face and an inclined face, the abutting face is annularly arranged around the guide groove, the inclined face is annularly arranged around the periphery of the abutting face, and the inclined face forms a horn mouth at the front end of the fixed disc;The inclined face is used to attach to the peripheral end face of the shell to be installed.

[0008] As another embodiment of the present application, the pushing disc is fixed to the front end of the guide shaft by means of bolts or is integrally formed with the guide shaft.

[0009] As another embodiment of the present application, a through hole is formed in the middle of the fixing disc to allow the guide shaft to pass through, and the inner cavity of the through hole is in communication with the inner cavity of the guide groove; the rear end of the pushing disc is attached to the groove bottom of the guide groove.

[0010] As another embodiment of the present application, the through hole has an expanding section near one side of the guide groove, and the inner diameter of the expanding section gradually increases toward the side of the guide groove; the rear end of the pushing disc forms a gradually changing portion protruding to the rear side, and the outer diameter of the gradually changing portion gradually increases from the rear to the front, and the gradually changing portion is adapted to the expanding section.

[0011] As another embodiment of the present application, an elastic member is arranged between the pressing disc and the fixing disc, and the elastic member is always in a compressed state.

[0012] As another embodiment of the present application, an axial positioning groove is formed in the front end of the pressing disc, the guide shaft is coaxial with the positioning groove, the rear end of the guide shaft is fixedly connected to the groove bottom of the positioning groove, the elastic member is located outside the guide shaft, and the end portion of the elastic member abuts against the groove bottom of the positioning groove.

[0013] As another embodiment of the present application, the rear end of the guide shaft has a threaded section with external threads; and the groove bottom of the positioning groove is provided with a threaded hole adapted to the threaded section.

[0014] The clasp ring part mounting tool has the advantages that, compared with the prior art, the clasp ring part mounting tool of the utility model utilizes the fixing disc to limit the clasp ring, the fixing disc is connected to the shell to be mounted to ensure that the guide groove and the limiting groove are coaxial, the clasp ring in the guide groove is pushed into the limiting groove by the pushing disc at the top of the guide shaft to complete the installation, the tool is simple to operate, has high consistency in installation cooperation, is suitable for structures with compact internal space, solves the problem that the clasp ring in the air compressor is inconvenient to install, improves the clasp ring assembly efficiency in the air compressor, and thus reduces the processing and manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Fig. 1The structure schematic view of the clasp ring part mounting tool is provided for the embodiment of the utility model.

[0017] Fig. 2 The sectional view of the clasp ring part mounting tool is provided for the embodiment of the utility model.

[0018] In the figure: 1, the pressure disc; 2, the fixed disc; 3, the inclined surface; 4, the abutment surface; 5, the ring groove; 6, the guide groove; 7, the push disc; 8, the guide shaft; 9, the threaded section; 10, the elastic member; 11, the expansion section; 12, the positioning groove. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and embodiments.It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model.

[0020] Please refer to Figs. 1-2 The clasp ring part mounting tool provided by the utility model will be described now.The clasp ring part mounting tool includes the guide shaft 8, the fixed disc 2 and the pressure disc 1, the pressure disc 1 is sleeved on the outside of the guide shaft 8, and the front end of the pressure disc 1 extends to the middle part of the guide shaft 8;the fixed disc 2 is sleeved on the outside of the guide shaft 8 and located in front of the pressure disc 1, and the fixed disc 2 and the guide shaft 8 move relatively, so that the rear end of the fixed disc 2 is close to or away from the pressure disc 1, the end of the fixed disc 2 away from the pressure disc 1 is provided with the guide groove 6 with the notch facing forward, and the notch of the guide groove 6 is used to accommodate the clasp ring;the front end of the guide shaft 8 is provided with the push disc 7, and the push disc 7 is slidably attached to the inner wall of the guide groove 6;the fixed disc 2 is abutted against the end part of the shell to be installed, and at the same time, the guide groove 6 corresponds to the limiting groove in the shell to be installed;the pressure disc 1 drives the guide shaft 8 to move until the push disc 7 pushes the clasp ring in the guide groove 6 into the limiting groove, at this time, the pressure disc 1 is attached to the tail end of the fixed disc 2, so as to avoid the guide shaft 8 from coming out.

[0021] The pressure disc 1 and the fixed disc 2 are sequentially sleeved on the guide shaft 8 along the axial direction of the guide shaft 8 from back to front, the pressure disc 1 is fixedly connected with the guide shaft 8, and the fixed disc 2 is movably matched with the guide shaft 8;when the clasp ring is installed, first, the clasp ring is installed at the front end of the guide groove 6, at this time, the push disc 7 at the front end of the guide shaft 8 is located in the guide groove 6, then the front end of the fixed disc 2 is abutted against the end part of the air compressor shell to be installed, so that the fixed disc 2 is coaxially opposite to the limiting groove on the shell to be installed;then, the pressure disc 1 is pushed, the pressure disc 1 drives the guide shaft 8 and the fixed disc 2 to move relatively, the push disc 7 at the front end of the guide shaft 8 moves forward until the clasp ring in the guide groove 6 at the front end of the guide groove 6 is pushed from the guide groove 6 into the limiting groove.

[0022] Compared with the prior art, the snap ring part mounting tool is limited by the fixing disc 2, the fixing disc 2 is connected with the shell to be mounted to ensure that the guide groove 6 and the limiting groove are coaxial, and then the top pushing disc 7 at the top of the guide shaft 8 pushes the snap ring in the guide groove 6 into the limiting groove to complete the installation, the tool is simple to operate, the installation cooperation consistency is high, and is suitable for the structure with compact internal space, the problem that the snap ring in the air compressor is not convenient to install is solved, the snap ring assembly efficiency in the air compressor is improved, and therefore the processing manufacturing cost is reduced.

[0023] The snap ring part mounting tool can be suitable for the installation of the snap ring and the earless baffle ring on various mechanical mechanisms such as air compressors.

[0024] The guide shaft 8, the pressing disc 1 and the fixing disc 2 are coaxially arranged, and during installation, the fixing disc 2 is abutted against the end of the shell to be mounted, so that the guide groove 6 and the limiting groove are coaxial.

[0025] The direction in which the fixing disc 2 is located relative to the pressing disc 1 is defined as the front direction, and the guide shaft 8 is horizontally arranged along the front-rear direction.

[0026] In some possible embodiments, referring to Fig. 2 , the front end of the guide groove 6 is provided with a ring groove 5, the inner diameter of the ring groove 5 is greater than that of the guide groove 6, the ring groove 5 and the guide groove 6 form a limiting step, and the snap ring is located in the ring groove 5 and the rear end of the snap ring is abutted against the limiting step.

[0027] The front end of the guide groove 6 is provided with a ring groove 5, the inner diameter of the ring groove 5 is greater than that of the guide groove 6. The ring groove 5 and the guide groove 6 form a limiting step, the front end of the ring groove 5 extends to the front end face of the fixing disc 2, and the rear end of the ring groove 5 and the guide groove 6 form a limiting step due to the difference in inner diameter. The end face of the limiting step is perpendicular to the axial direction and faces the front direction. The ring groove 5 is used for accommodating the snap ring, and the limiting step at the rear end of the ring groove 5 is used for limiting the position of the snap ring in the axial direction. During installation, the snap ring is first placed in the ring groove 5 and pushed inward until the rear end face of the snap ring is abutted against the limiting step. The snap ring abutted against the limiting step is always in a plane perpendicular to the axial direction, and is not easy to tilt out during the forward pushing process of the pushing disc 7, thereby ensuring the stability and cooperation consistency during the installation process.

[0028] In some possible embodiments, referring to Fig. 2 , the end face of the front end of the fixing disc 2 includes an abutting face 4 and an inclined face 3, the abutting face 4 is annularly arranged around the circumferential direction of the guide groove 6, the inclined face 3 is annularly arranged around the periphery of the abutting face 4, and the inclined face 3 forms a flared mouth at the front end of the fixing disc 2; and the inclined face 3 is used for abutting against the outer peripheral end face of the shell to be mounted.

[0029] The front end of the fixing disc 2 is used to abut against the shell to be installed, and the end face of the front end of the fixing disc 2 is provided with an annular abutting face 4 and an annular inclined face 3 which gradually inclines forward along the radial direction from inside to outside.

[0030] During installation, the inclined face 3 is fitted to the outer periphery of the end of the shell to be installed, and the abutting face 4 is located on the inner side of the inclined face 3 and is fitted to the end face of the shell to be installed. The cooperation of the inclined face 3 and the abutting face 4 ensures the fixed connection of the fixing disc 2 and the shell to be installed.

[0031] In some possible embodiments, referring to Fig. 2 , the pushing disc 7 is fixed to the front end of the guide shaft 8 by means of bolts or is integrally formed with the guide shaft 8.

[0032] The pushing disc 7 is located in the guide groove 6, and the pushing disc 7 is in a disc structure and is coaxial with and perpendicularly connected to the guide shaft 8.

[0033] When the guide shaft 8 and the pushing disc 7 are connected by means of bolts, bolt holes are left on the front end face of the guide shaft 8 and the center of the pushing disc 7. The pushing disc 7 is fitted to the front end face of the guide shaft 8, and the bolts pass through the pushing disc 7 from front to back and extend into the bolt holes of the guide shaft 8.

[0034] When the guide shaft 8 and the pushing disc 7 are integrally formed, the pushing disc 7 is part of the guide shaft body, and the shape of the pushing disc 7 can be completed by turning.

[0035] The pushing disc 7 is located at the groove bottom of the guide groove 6, and the pushing disc 7 realizes extrusion and pushing of the clamping ring during the relative movement of the guide shaft 8 and the fixing disc 2. The pushing disc 7 is in sliding cooperation with the inner side wall of the guide groove 6.

[0036] In some possible embodiments, referring to Fig. 2 , a through hole which allows the guide shaft 8 to pass through is formed in the middle part of the fixing disc 2, the inner cavity of the through hole is in communication with the inner cavity of the guide groove 6, and the rear end of the pushing disc 7 is fitted to the groove bottom of the guide groove 6.

[0037] A through hole is formed on the center line of the fixing disc 2, the guide shaft 8 is fixedly connected to the pushing disc 7 or is integrally formed, the guide shaft 8 passes through the through hole from front to back, the rear end of the guide shaft 8 extends out of the fixing disc 2, the front end of the guide shaft 8 is left in the guide groove 6 of the fixing disc 2 by means of the pushing disc 7, and the rear end of the pushing disc 7 is fitted to the groove bottom of the guide groove 6.

[0038] The inner diameter of the through hole is smaller than the outer diameter of the pushing disc 7.

[0039] Optionally, the through hole has an expansion section 11 near one side of the guide groove 6, the inner diameter of the expansion section 11 gradually increases toward the one side of the guide groove 6; the rear end of the push disc 7 is formed with a gradually changing portion protruding to the rear side, the outer diameter of the gradually changing portion gradually increases from the rear to the front, and the gradually changing portion is matched with the expansion section 11.

[0040] The through hole has an expansion section 11 at the front end, the inner diameter of the expansion section 11 gradually increases from the rear to the front. The gradually changing portion at the rear end of the push disc 7 is used to match the expansion section 11, so as to increase the stability of the push disc 7 in the guide groove 6.

[0041] When the guide shaft 8 drives the push disc 7 to reset, the rear end face of the push disc 7 is attached to the groove bottom of the guide groove 6, the gradually changing portion at the rear end of the push disc 7 is located in the expansion section 11, and the outer side wall of the gradually changing portion is attached to the side wall of the expansion section 11. At this time, the push disc 7 is in a static state.

[0042] In some possible embodiments, please refer to Fig. 2 The elastic member 10 is arranged between the pressing disc 1 and the fixed disc 2, and the elastic member 10 is always in a compressed state.

[0043] The pressing disc 1 is fixedly connected with the guide shaft 8, and the pressing disc 1 is used as a structure convenient for clamping fixation or hand fixation, and is mainly used for positioning the guide shaft 8 and driving the guide shaft 8 to move relative to the fixed disc 2 by an external force. In the process that the guide shaft 8 moves relative to the fixed disc 2, the pressing disc 1 also moves relative to the fixed disc 2.

[0044] The elastic member 10 arranged between the pressing disc 1 and the fixed disc 2 can realize automatic resetting of the guide shaft 8. When the guide shaft 8 moves forward to push the snap ring, the elastic member 10 is compressed. The compressed elastic member 10 has a rebounding tendency, and after the external force on the pressing disc 1 is removed, the elastic member 10 drives the pressing disc 1 to move the guide shaft 8 backward to reset, until the push disc 7 at the front end of the guide shaft 8 abuts against the groove bottom of the guide groove 6.

[0045] The cooperation of the expansion section 11 and the gradually changing portion further slows down the impact between the push disc 7 and the fixed disc 2 and improves the stability of the push disc 7 in the reset state.

[0046] Specifically, the front end of the pressing disc 1 is provided with a positioning groove 12 extending in the axial direction, the guide shaft 8 is coaxial with the positioning groove 12, the rear end of the guide shaft 8 is fixedly connected with the groove bottom of the positioning groove 12, the elastic member 10 is located outside the guide shaft 8, and the end portion of the elastic member 10 abuts against the groove bottom of the positioning groove 12.

[0047] The front end face of the pressing disc 1 is provided with an axial positioning groove 12, and the rear end of the guide shaft 8 extends into the positioning groove 12 and is connected with the groove bottom of the positioning groove 12. There is still an installation gap between the periphery of the guide shaft 8 and the inner side wall of the positioning groove 12, and the elastic member 10 is fixed in the installation gap. The elastic member 10 can be a spring, which is sleeved on the outer side of the guide shaft 8, and the end of the elastic member 10 extends into the positioning groove 12 from the installation gap until abutting against the groove bottom of the positioning groove 12, so that the positioning groove 12 covers part of the elastic member 10, thereby achieving the guiding and limiting effects. The other end of the elastic member 10 abuts against the fixing disc 2. When the pressing disc 1 drives the guide shaft 8 to move forward, the push disc 7 moves forward to push the clamping ring in the fixing disc 2 forward, and at the same time, the elastic member 10 is compressed; after the clamping ring is pushed into the shell to be installed, the external force applied on the pressing disc 1 is removed, the elastic member 10 drives the pressing disc 1 to move backward by the elastic force of the elastic member 10, the pressing disc 1 drives the guide shaft 8 to move backward to reset until the push disc 7 abuts against the groove bottom of the guide groove 6.

[0048] The guide shaft 8 and the pressing disc 1 are connected through threads. Specifically, the rear end of the guide shaft 8 is provided with a threaded segment 9 having external threads, and the groove bottom of the positioning groove 12 is provided with a threaded hole matched with the threaded segment 9. Optionally, the diameter of the threaded segment 9 is smaller than the diameter of the guide shaft body.

[0049] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A snap ring part mounting tool characterized by, The device comprises a guide shaft (8), a fixed disc (2) and a pressing disc (1), the pressing disc (1) is sleeved outside the guide shaft (8), the front end of the pressing disc (1) extends to the middle part of the guide shaft (8); the fixed disc (2) is sleeved outside the guide shaft (8) and located in front of the pressing disc (1), the fixed disc (2) and the guide shaft (8) move relatively, so that the rear end of the fixed disc (2) is close to or away from the pressing disc (1), the fixed disc (2) is provided with a guide groove (6) with a notch facing forward at one end away from the pressing disc (1), the notch of the guide groove (6) is used for accommodating a snap ring; the front end of the guide shaft (8) is provided with a pushing disc (7) which is slidably attached to the inner wall of the guide groove (6); The fixed disc (2) is abutted against the end of the shell to be installed, at the same time, the guide groove (6) corresponds to the limiting groove in the shell to be installed, the pressing disc (1) drives the guide shaft (8) to move until the pushing disc (7) pushes the snap ring in the guide groove (6) into the limiting groove, at this time, the pressing disc (1) is attached to the tail end of the fixed disc (2), avoiding the guide shaft (8) from being pulled out.

2. The circlip part mounting tool according to claim 1, wherein The front end of the guide groove (6) is provided with a ring groove (5), the inner diameter of the ring groove (5) is larger than the inner diameter of the guide groove (6), the ring groove (5) and the guide groove (6) form a limiting step, the snap ring is located in the ring groove (5) and the rear end of the snap ring is abutted against the limiting step.

3. The circlip part mounting tool according to claim 1, wherein The end face of the front end of the fixed disc (2) comprises an abutting face (4) and an inclined face (3), the abutting face (4) is annularly arranged around the circumference of the guide groove (6), the inclined face (3) is annularly arranged around the periphery of the abutting face (4), and the inclined face (3) forms a horn mouth at the front end of the fixed disc (2); the inclined face (3) is used for being attached to the peripheral end face of the shell to be installed.

4. The circlip part mounting tool according to claim 1, wherein The pushing disc (7) is fixed at the front end of the guide shaft (8) by means of bolts or is integrally formed with the guide shaft (8).

5. The circlip part mounting tool according to claim 1, wherein The middle part of the fixed disc (2) is provided with a through hole allowing the guide shaft (8) to pass through, the inner cavity of the through hole is communicated with the inner cavity of the guide groove (6); the rear end of the pushing disc (7) is attached to the groove bottom of the guide groove (6).

6. The circlip part mounting tool according to claim 5, wherein The side of the through hole close to the guide groove (6) has an expansion section (11), the inner diameter of the expansion section (11) gradually increases towards the side of the guide groove (6); the rear end of the pushing disc (7) forms a gradual change part protruding to the rear side, the outer diameter of the gradual change part gradually increases from the rear to the front, and the gradual change part is matched with the expansion section (11).

7. The circlip part mounting tool according to claim 1, wherein The elastic member (10) is always in a compressed state between the pressing disc (1) and the fixed disc (2).

8. The circlip part mounting tool according to claim 7, wherein The front end of the pressing disc (1) is provided with a positioning groove (12) extending in the axial direction, the guide shaft (8) is coaxial with the positioning groove (12), the rear end of the guide shaft (8) is fixedly connected with the groove bottom of the positioning groove (12), the elastic member (10) is located outside the guide shaft (8), and the end of the elastic member (10) abuts against the groove bottom of the positioning groove (12).

9. The circlip part mounting tool according to claim 8, wherein The rear end of the guide shaft (8) is provided with a threaded section (9) with external threads; and the groove bottom of the positioning groove (12) is provided with a threaded hole matched with the threaded section (9).

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