CN218364353U - Retaining ring assembly jig - Google Patents

Abstract

The utility model relates to an automobile parts makes technical field. The utility model discloses a check ring assembly fixture, which comprises a barrel body, wherein a round platform-shaped lower channel is formed in the barrel body, the upper opening and the lower opening of the lower channel are respectively a first opening and a second opening, the diameter of the first opening is larger than that of the second opening, and the second opening is positioned on the lower surface of the barrel body; the rod body is used for driving the broadening assembly to move, so that the broadening assembly pushes the check ring in the lower channel out of the barrel body from the second opening; the widening assembly can stretch and retract along the radial direction of the lower channel, and the widening assembly is always in sliding contact with the inner wall of the lower channel in the process that the widening assembly pushes the check ring in the lower channel out of the barrel body from the second opening. The utility model discloses can make the retaining ring remain the level throughout and downstream, solve and exist among the prior art, lead to the retaining ring to be difficult to with the technical problem that the retaining ring groove block targets in place easily.

Description

Retaining ring assembly jig

Technical Field

The utility model relates to an automobile parts makes technical field, in particular to retaining ring assembly jig.

Background

With the continuous development of the automobile industry, the assembly process requirements of each internal part are higher and higher, and the assembly tools are more and more diversified.

Patent document CN201721740051.3 discloses a wire retaining ring assembly jig, wherein mention is made of: the steel wire retainer ring assembly fixture comprises an upper cover and a baffle, a spring is arranged between the upper cover and the baffle, the steel wire retainer ring assembly fixture further comprises a pre-pressing pressure head and a forming pressure head, the pre-pressing pressure head is arranged below the baffle, and the forming pressure head penetrates through the pre-pressing pressure head and the baffle.

The diameter of the forming pressure head is smaller than that of the retainer ring in the expansion state and approximately equal to that of the retainer ring in the contraction state; if the retaining ring is in an expanded state without the action of external force, and the retaining ring which is extruded by the retaining ring groove and contracts is in a contracted state, in the prior art, when the retaining ring is placed in the steel wire retaining ring assembly fixture, the retaining ring is easy to incline, or in the process that the retaining ring is pushed by the forming pressure head, once the forming pressure head radially moves, the axis of the forming pressure head and the axis of the retaining ring are not on the same straight line, the retaining ring is easy to incline; the axis of the inclined retainer ring forms an included angle with the horizontal plane, so that the retainer ring is difficult to be clamped in place with the retainer ring groove after being pushed out by the forming pressure head.

In conclusion, the steel wire retainer ring assembling clamp in the prior art is easy to cause the technical problem that the retainer ring is difficult to be clamped in place with the retainer ring groove.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem that the retainer ring is difficult to be clamped in place with a retainer ring groove easily caused by using a steel wire retainer ring assembly fixture in the prior art; the utility model provides a retaining ring assembly jig.

The utility model discloses a following technical scheme realizes:

a retainer ring assembling clamp comprises a barrel, wherein a lower channel is formed in the barrel, the upper opening and the lower opening of the lower channel are respectively a first opening and a second opening, the diameter of the first opening is larger than that of the second opening, and the second opening is positioned at the lower end of the barrel;

the cylinder body is provided with a first opening, a second opening and a first widening component, wherein the first opening is used for enabling the first opening to be communicated with the cylinder body;

the widening component can stretch along the radial direction of the lower channel, and is always in sliding contact with the inner wall of the lower channel in the process that the widening component pushes the check ring in the lower channel out of the barrel body from top to bottom.

Furthermore, the widening component comprises a supporting seat, a first sliding part and a second sliding part,

the top of the supporting seat is connected with the bottom end of the rod body;

the first sliding part and the second sliding part are arranged oppositely and distributed on two sides of the bottom of the supporting seat, and the first sliding part and the second sliding part are respectively connected with the bottom of the supporting seat in a sliding manner;

a side surface that first sliding part deviates from second sliding part is first arc surface, and a side surface that second sliding part deviates from first sliding part is second arc surface, will be in the retaining ring of passageway down at the broadening subassembly, from top to bottom release to the external in-process of barrel, first arc surface and second arc surface respectively with the inner wall sliding contact all the time of passageway down.

Further, the bottom of the supporting seat is provided with a sliding chute, and a first opening and a second opening are respectively formed on the sliding chute and the two side surfaces of the supporting seat;

the first sliding part comprises a first sliding block and a first convex block which are arranged up and down and connected with each other, the first sliding block is inserted into the sliding groove from the first opening part and forms a first sliding pair with the sliding groove, and at least part of the first sliding block is limited in the sliding groove; the first bump is limited outside the sliding groove;

the second sliding part comprises a second sliding block and a second convex block which are arranged up and down and are connected with each other, the second sliding block is inserted into the sliding groove from the second opening part and forms a second sliding pair with the sliding groove, and at least part of the second sliding block is limited in the sliding groove; the second projection is limited outside the sliding groove.

Furthermore, the device also comprises a small spring;

one side of the first sliding part facing the second sliding part is provided with a first blind hole, one side of the second sliding block facing the first sliding block is provided with a second blind hole, two ends of the small spring are respectively embedded into the first blind hole and the second blind hole, and the small spring is in a compression state.

Furthermore, the first sliding part is provided with a first through hole, and the second sliding part is provided with a second through hole;

the connecting rod is further included, the length of the connecting rod is equal to or smaller than the diameter of the second opening, two ends of the connecting rod are respectively inserted into the first through hole and the second through hole, and the outer surface of the connecting rod is in sliding contact with the inner wall of the first through hole and the inner wall of the second through hole respectively.

Further, the bottom surface of the first bump is provided with a magnet piece, and/or the bottom surface of the second bump is provided with a magnet piece.

Further, the lower channel comprises a circular truncated cone channel and a cylindrical channel which are arranged up and down and are communicated with each other, the first opening is an upper end opening of the circular truncated cone channel, and the second opening is a lower end opening of the cylindrical channel;

the outer surface of the lower end of the cylinder body forms a preset outer surface, the first opening points to the direction of the second opening, and the preset outer surface is gradually narrowed and converged with the outline of the second opening.

Furthermore, a cylindrical upper channel is formed in the cylinder body, the extension direction of the upper channel is consistent with that of the lower channel, the upper channel is positioned above the lower channel, the upper channel is communicated with the lower channel through the first opening, the upper end opening of the upper channel is a third opening, and the broadening component extends into the cylinder body from the third opening;

the cylinder body is provided with a strip-shaped opening which is communicated with the upper channel or the lower channel.

The width-increasing component is limited in the barrel by the end cover;

the top of the rod body is detachably connected with a handle, the outer surface of the rod body is sleeved with a large spring, one end of the large spring is abutted to the end cover, and the other end of the large spring is abutted to the handle.

Furthermore, an annular bulge is arranged on the end cover, and the bottom end of the large spring is limited in the annular bulge;

one side of the handle facing the end cover is provided with an annular groove which is arranged around the rod body, and the top end of the large spring is limited in the annular groove.

Compared with the prior art, the utility model has the advantages of:

1. in the application, in the process that the broadening assembly pushes the retainer ring to move downwards, the broadening assembly is always in sliding contact with the inner wall of the lower channel, the broadening assembly is extruded by the inner wall of the lower channel to contract in the radial direction, and similarly, the retainer ring is also extruded by the inner wall of the lower channel to contract in the radial direction, so that the radial dimension of the broadening assembly and the radial dimension of the retainer ring are both limited by the inner wall of the lower channel; the edge of the retainer ring is pressed by the edge of the widening assembly all the time, and the retainer ring is difficult to incline; furthermore, even if the check ring is placed in, the check ring is in an inclined state, the check ring is firstly contacted with the edge of the check ring in the downward movement process of the broadening assembly, and as the broadening assembly is always in sliding contact with the inner wall of the lower channel, the space for the check ring to continuously incline is gradually eliminated in the downward movement process of the broadening assembly, so that the check ring is gradually corrected, and the phenomenon that the check ring continuously inclines due to the fact that the diameter of a forming pressure head in the prior art is smaller is avoided; consequently, promote the retaining ring at the broadening subassembly from top to bottom and release to the outer in-process of barrel, the retaining ring can remain the level all the time, and the retainer ring groove sets up in the second opening part, and the retaining ring is released outside the barrel by the second opening, directly falls into the retainer ring inslot, because the retaining ring remains the level all the time at above-mentioned in-process retaining ring, consequently, retaining ring and retainer ring groove can block completely, have avoided the emergence of the not-in-place condition of retaining ring among the prior art and retainer ring groove block. In conclusion, the technical problem that the retainer ring is difficult to be clamped in place with the retainer ring groove easily in the prior art is solved.

Drawings

FIG. 1 is a schematic structural view of the retainer ring assembling jig of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of the widened assembly;

fig. 4 is a schematic structural assembly diagram of the widening assembly.

Reference numbers in the figures: the cylinder body (1), the upper channel (2), the lower channel (3), the first opening (4), the strip-shaped opening (5), the rod body (8), the broadening assembly (9), the supporting seat (10), the first sliding part (11), the second sliding part (12), the sliding groove (13), the first opening (14), the second opening (15), the first slider (16), the first bump (17), the second slider (18), the second bump (19), the small spring (20), the first arc-shaped surface (21), the second arc-shaped surface (22), the first side wall (23), the second side wall (24), the first surface (25), the second surface (26), the third surface (27), the fourth surface (28), the first through hole (29), the second through hole (30), the connecting rod (31), the end cover (32), the handle (34), the annular bulge (35), the annular groove (36), the magnet piece (37), the large spring (38), the second blind hole (39), the second opening (40), the third opening (41), the circular truncated cone channel (42), the cylindrical outer surface (44), the annular convex surface (46) and the cylindrical surface (46).

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to fig. 2, a retainer ring assembling jig according to a preferred embodiment of the present invention includes a barrel 1, a lower channel 3 is formed in the barrel 1, an upper opening and a lower opening of the lower channel 3 are a first opening 4 and a second opening 40, respectively, a diameter of the first opening 4 is greater than a diameter of the second opening 40, wherein the second opening 40 is located at a lower end of the barrel 1;

the water pump also comprises a rod body 8 and a widening component 9 connected with the rod body 8, wherein the rod body 8 is used for driving the widening component 9 to move, so that the widening component 9 pushes a check ring in the lower channel 3 out of the cylinder body 1 through the second opening 40;

along the radial direction of lower passageway 3, broadening subassembly 9 is scalable, and at broadening subassembly 9 in the retaining ring that will be in lower passageway 3, in-process from top to bottom pushes out to the barrel 1 outside, broadening subassembly 9 and the inner wall of lower passageway 3 sliding contact all the time.

The cylinder body 1 can be made of metal materials or hard plastic materials, and the outer surface of the cylinder body 1 can be made into a square shape or a cylindrical shape or other geometric shapes according to the use working conditions.

The first opening 4 and the second opening 40 are both circular openings, and if the retainer ring is in an expanded state without an external force and the retainer ring compressed by the retainer ring groove is in a contracted state, the diameter of the first opening 4 is not smaller than the diameter of the retainer ring in the expanded state.

The rod body 8 is a linear rod-shaped structure, and preferably, the outer surface of the rod body 8 is smooth.

With further reference to fig. 3 to 4, the widening assembly 9 includes a supporting base 10, a first sliding portion 11, and a second sliding portion 12, wherein the top of the supporting base 10 is connected to the bottom end of the rod 8; the first sliding part 11 and the second sliding part 12 are oppositely arranged and distributed on two sides of the bottom of the supporting seat 10, and the first sliding part 11 and the second sliding part 12 are respectively connected with the bottom of the supporting seat 10 in a sliding manner; the side surface of the first sliding part 11, which is far away from the second sliding part 12, is a first arc-shaped surface 21, the side surface of the second sliding part 12, which is far away from the first sliding part 11, is a second arc-shaped surface 22, and in the process that the widening assembly 9 pushes the check ring in the lower channel 3 out of the cylinder 1 from top to bottom, the first arc-shaped surface 21 and the second arc-shaped surface 22 are in sliding contact with the inner wall of the lower channel 3 all the time; the lower surface of the widening member 9 is a plane parallel to the horizontal plane, that is, the first sliding portion 11 and the second sliding portion 12 are planes parallel to the horizontal plane.

When the device is used, the check ring can be horizontally placed at the first opening 4 or in the lower channel 3, the rod body 8 drives the broadening assembly 9 to move from top to bottom, and the broadening assembly 9 pushes the check ring downwards; in the process that the widening assembly 9 pushes the check ring downwards, the widening assembly 9 gradually extends and retracts along the radial direction of the lower channel 3, the widening assembly 9 is always in sliding contact with the inner wall of the lower channel 3, the check ring is gradually contracted by being extruded by the inner wall of the lower channel 3, and the circumferential outer surface of the check ring is always in sliding contact with the inner wall of the lower channel 3; the retainer ring groove is formed in the second opening 40, the width increasing assembly 9 pushes the retainer ring out of the cylinder body 1 from the second opening 40, and the retainer ring directly enters the retainer ring groove and is clamped with the retainer ring groove.

In the prior art, the diameter of the forming pressure head is smaller than that of the retainer ring in an expansion state, when the forming pressure head pushes the retainer ring to move downwards, namely, in the process that the retainer ring is changed from the expansion state to a contraction state, once the forming pressure head generates radial dislocation, the forming pressure head and the retainer ring are not coaxial, the retainer ring is inclined, an included angle exists between the axial direction of the inclined retainer ring and the horizontal plane, and the retainer ring is not clamped in place after being pushed out by the forming pressure head; the situation that the retainer ring is not engaged with the retainer groove includes, but is not limited to, that a part of the retainer ring is engaged with the retainer groove and another part of the retainer ring is limited outside the retainer groove. In conclusion, the steel wire retainer ring assembling clamp in the prior art is easy to cause the technical problem that the retainer ring is difficult to be clamped in place with the retainer ring groove.

In this embodiment, in the process that the broadening assembly 9 pushes the retainer ring to move downward, the broadening assembly 9 is always in sliding contact with the inner wall of the lower channel 3, the broadening assembly 9 is radially contracted by being pressed by the inner wall of the lower channel 3, and similarly, the retainer ring is also radially contracted by being pressed by the inner wall of the lower channel 3, which causes that the radial dimension of the broadening assembly 9 and the radial dimension of the retainer ring are both limited by the inner wall of the lower channel 3, in other words, in the process that the broadening assembly 9 pushes the retainer ring to move downward, not only the lower surface of the broadening assembly 9 is always attached to the upper surface of the retainer ring, but also the edge profile of the lower surface of the broadening assembly 9 is always crossed with the edge profile of the upper surface of the retainer ring; this makes the edge of the retainer ring pressed by the edge of the widening assembly 9 all the time, the retainer ring is difficult to tilt; furthermore, even if the check ring is put in, the check ring is in an inclined state, the edge of the check ring is contacted with the widening assembly 9 in the downward movement process, and the widening assembly 9 is always in sliding contact with the inner wall of the lower channel, so that the space in which the check ring is continuously inclined is gradually eliminated in the downward movement process of the widening assembly 9, the check ring is gradually corrected, and the phenomenon that the check ring is continuously inclined due to the fact that the diameter of a forming pressure head in the prior art is small is avoided; therefore, in this embodiment, in the process that the widening assembly 9 pushes the retainer ring to be pushed out to the outside of the cylinder 1 from top to bottom, the retainer ring can be always kept horizontal, the retainer ring groove is formed in the second opening 40, the retainer ring is pushed out to the outside of the cylinder 1 through the second opening 40 and directly falls into the retainer ring groove, and the retainer ring is always kept horizontal in the process, so that the retainer ring and the retainer ring groove can be completely clamped, and the situation that the retainer ring and the retainer ring groove are not clamped in place in the prior art is avoided. In conclusion, the technical problem that the retainer ring is difficult to be clamped in place with the retainer ring groove easily in the prior art is solved.

Further, in the prior art, because the diameter of the forming pressure head is smaller than the diameter of the retaining ring in the expanded state, the guide sleeve gives an upward acting force to the edge of the lower surface of the retaining ring, the forming pressure head gives a downward acting force to the center of the upper surface of the retaining ring, and if the position between the center of the retaining ring and the edge of the retaining ring is a preset position, the retaining ring is subjected to a shearing force continuously in the pushing process of the forming pressure head, and the preset position is easy to deform under the condition that the hardness of the retaining ring is insufficient.

In this embodiment, the inner wall of the lower channel 3 provides a first acting force to the edge of the lower surface of the retainer ring, the broadening assembly 9 provides a second acting force to the edge of the upper surface of the retainer ring, the first acting force and the second acting force are opposite in direction, and both the first acting force and the second acting force act on the circumferential edge of the retainer ring.

Mention may be made in the foregoing: the first sliding part 11 and the second sliding part 12 are respectively connected with the bottom of the supporting seat 10 in a sliding manner, and the specific connection structure is as follows: the bottom of the supporting seat 10 is provided with a sliding chute 13, and a first opening part 14 and a second opening part 15 are respectively formed on the sliding chute 13 and the two side surfaces of the supporting seat 10; the first sliding part 11 comprises a first sliding block 16 and a first convex block 17 which are arranged up and down and connected with each other, the first sliding block 16 is inserted into the sliding groove 13 from the first opening part 14 and forms a first sliding pair with the sliding groove 13, and at least part of the first sliding block 16 is limited in the sliding groove 13; the first projection 17 is confined outside the chute 13; the second sliding part 12 comprises a second sliding block 18 and a second convex block 19 which are arranged up and down and connected with each other, the second sliding block 18 is inserted into the sliding groove 13 from the second opening part 15 and forms a second sliding pair with the sliding groove 13, and at least part of the second sliding block 18 is limited in the sliding groove 13; the second cam 19 is confined outside the slide groove 13. In summary, when the widening assembly 9 pushes the retainer ring to move downward, the first protrusion 17 and the second protrusion 19 contact with the retainer ring, and the lower surfaces of the first protrusion 17 and the second protrusion 19 are planes parallel to the horizontal plane.

Furthermore, how to make the first sliding part 11 and the second sliding part 12 respectively contact with the inner wall of the lower channel 3 is a technical problem to be solved, and therefore, the present embodiment also includes the following technical solutions.

With further reference to fig. 3-4, the retainer ring assembly fixture further includes a small spring 20; the first sliding part 11 is provided with a first blind hole on one side facing the second sliding part 12, the second slider 18 is provided with a second blind hole 39 on one side facing the first slider 16, two ends of the small spring 20 are respectively embedded into the first blind hole and the second blind hole 39, and the small spring 20 is in a compressed state. Further, the number of the small spring 20, the first blind hole and the second blind hole 39 may be one or more.

Because the small spring 20 is always in a compressed state, the small spring 20 arranged between the first sliding part 11 and the second sliding part 12 enables the first sliding part 11 and the second sliding part 12 to always have a tendency of being away from each other, and further enables the first sliding part 11 and the second sliding part 12 to respectively cling to the inner wall of the lower channel 3; therefore, the present embodiment solves the technical problem of how to make the first sliding part 11 and the second sliding part 12 respectively abut against the inner wall of the lower channel 3.

With further reference to fig. 3 to 4, the present embodiment further includes the following technical solutions: the first sliding part 11 is provided with a first through hole 29, and the second sliding part 12 is provided with a second through hole 30; the connecting rod 31 is further included, the length of the connecting rod 31 is equal to or less than the diameter of the second opening 40, two ends of the connecting rod 31 are respectively inserted into the first through hole 29 and the second through hole 30, and the outer surface of the connecting rod 31 is respectively in sliding contact with the inner wall of the first through hole 29 and the inner wall of the second through hole 30.

In the above, the first slider 16 and the second slider 18 respectively form a first sliding pair and a second sliding pair with the sliding chute 13, that is, the inner wall of the sliding chute 13 plays a role of guiding the first sliding part 11 and the second sliding part 12; in the present embodiment, a link 31 is further provided, and the link 31 further guides the first sliding portion 11 and the second sliding portion 12.

The retainer groove is arranged on the product, is usually arranged on the inner wall of the opening of the product, and the axis of the retainer groove is coaxial with the opening of the product; then, how to make the retaining ring assembly jig when installing to the product trompil, retaining ring assembly jig and product trompil radially keep relative still is the technical problem that needs to solve, and this technical problem is realized through following technical scheme.

With further reference to fig. 1 to 2, the lower channel 3 includes a circular truncated cone channel 42 and a cylindrical channel 44 which are vertically arranged and are communicated with each other, the first opening 4 is an upper end opening of the circular truncated cone channel 42, and the second opening 40 is a lower end opening of the cylindrical channel 44; the outer surface of the lower end of the cylinder 1 forms a predetermined outer surface 45, which is directed from the first opening 4 to the second opening 40, and the predetermined outer surface 45 gradually narrows and merges with the contour of the second opening 40. Further, the junction of the circular truncated cone channel 42 and the cylindrical channel 44 is connected by a circular arc surface.

When the check ring assembling clamp is used, the preset outer surface 45 of the check ring assembling clamp is inserted into the product opening, the preset outer surface 45 is radially attached to the inner wall of the product opening and limited by the inner wall of the product opening, and the check ring assembling clamp and the product opening are kept relatively static in the radial direction; therefore, the technical problem of how to make the retainer ring assembly fixture and the product opening hole keep relatively static in the radial direction is solved by the embodiment.

Further, an annular convex edge 46 is formed above the preset outer surface 45, and when the retainer ring assembling jig is installed in the opening of the product, the annular convex edge 46 is attached to the upper surface of the product, so that the retainer ring assembling jig and the product are kept relatively static in the axial direction.

In conclusion, the embodiment also solves the problem that the retainer ring assembling clamp is relatively static relative to the product after the retainer ring assembling clamp is assembled on the product hole, and avoids the occurrence of the displacement condition of the retainer ring assembling clamp relative to the product in the process of press fitting the retainer ring by the retainer ring assembling clamp.

Further, how to keep the retainer ring initially put into the lower channel 3 parallel to the horizontal plane, in other words, how to keep the retainer ring put into the lower channel 3 parallel to the horizontal plane before the widening assembly 9 pushes the retainer ring to move is a problem to be solved, and the technical problem is solved by the following technical scheme.

Referring to fig. 2, the bottom surface of the first protrusion 17 is provided with a magnet piece 37, and/or the bottom surface of the second protrusion 19 is provided with a magnet piece 37.

The magnet piece 37 has magnetism and is in a sheet shape, the upper and lower surfaces of the magnet piece 37 are parallel to the horizontal plane, and the magnet piece is mounted on the bottom surface of the first projection 17 and/or the second projection 19; after the check ring is placed in the lower channel 3, the check ring is adsorbed by the magnet pieces 37, and the upper surface or the lower surface of the check ring is tightly attached to the surfaces of the magnet pieces 37, so that the check ring is kept in a horizontal state before the widening assembly 9 moves; therefore, the embodiment solves the technical problem of how the retainer ring put into the lower channel 3 is kept parallel to the horizontal plane before the widening assembly 9 pushes the retainer ring to move.

With further reference to fig. 1 to 2, the present embodiment further includes the following technical solutions; a cylindrical upper channel 2 is further formed in the cylinder body 1, the extending directions of the upper channel 2 and the lower channel 3 are consistent, the upper channel 2 is positioned above the lower channel 3, the upper channel 2 is communicated with the lower channel 3 through a first opening 4, the upper end opening of the upper channel 2 is a third opening 41, and the broadening component 9 extends into the cylinder body 1 through the third opening 41; the cylinder body 1 is provided with a strip-shaped opening 5, and the strip-shaped opening 5 is communicated with the upper channel 2 or the lower channel 3. Furthermore, the junction of the upper channel 2 and the lower channel 3 is connected by an arc surface.

In the scheme, after each press mounting is finished, the widening component 9 and the rod body 8 are taken out, and then the retainer ring is put into the lower channel 3; in this scheme, last passageway 2 is located 3 tops of lower passageway, and bar mouth 5 communicates with each other with last passageway 2 or lower passageway 3, and retaining ring accessible bar mouth 5 need not the pressure equipment at every turn and accomplishes the back, all will take out widening subassembly 9, the body of rod 8 and drop into the retaining ring again in dropping into passageway 3, comparatively convenient, swift.

How to make the widening component 9 and the rod body 8 automatically return after moving downwards is a technical problem to be solved, and the technical problem is solved by the following technical scheme.

With further reference to fig. 1 to 2, the retainer ring assembly fixture further includes an end cover 32, the end cover 32 is simultaneously sleeved on the rod body 8 and the cylinder body 1, the end cover 32 is connected with the cylinder body 1, and the widening assembly 9 is limited in the cylinder body 1 by the end cover 32; the top end of the rod body 8 is detachably connected with a handle 34, the outer surface of the rod body 8 is sleeved with a large spring 38, one end of the large spring 38 is abutted against the end cover 32, and the other end of the large spring is abutted against the handle 34. Specifically, the connection between the rod 8 and the handle 34 is a threaded connection.

When the downward pressure is applied to the rod body 8, the rod body 8 and the broadening assembly 9 move downwards, the large spring 38 is extruded and compressed, and when the downward pressure applied to the rod body 8 disappears, the rod body 8 is under the elastic action of the large spring 38, so that the broadening assembly 9 is driven to move upwards together until the original position is reached; therefore, the embodiment solves the technical problem of how to make the widening component 9 and the rod body 8 automatically return after moving downwards.

Further, the end cap 32 is provided with an annular protrusion 35, and the bottom end of the large spring 38 is limited in the annular protrusion 35; the side of the grip 34 facing the cap 32 is provided with an annular groove 36, the annular groove 36 is disposed around the shaft 8, and the top end of the large spring 38 is confined in the annular groove 36. This embodiment causes both ends of the large spring 38 to be confined in the annular projection 35 and the annular groove 36, respectively, so that the radial position of the large spring 38 is fixed.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The retainer ring assembling clamp is characterized by comprising a barrel (1), wherein a lower channel (3) is formed in the barrel (1), an upper opening and a lower opening of the lower channel (3) are respectively a first opening (4) and a second opening (40), the diameter of the first opening (4) is larger than that of the second opening (40), and the second opening (40) is positioned at the lower end of the barrel (1);

the cylinder body is characterized by further comprising a rod body (8) and a widening assembly (9) connected with the rod body (8), wherein the rod body (8) is used for driving the widening assembly (9) to move, so that the widening assembly (9) pushes a check ring in the lower channel (3) out of the cylinder body (1) through the second opening (40);

along the radial direction of lower passageway (3), broadening subassembly (9) is scalable, will be in the retaining ring in lower passageway (3) at broadening subassembly (9), from top to bottom push out to the in-process outside barrel (1), and broadening subassembly (9) and the inner wall of lower passageway (3) sliding contact all the time.

2. Retainer ring fitter clamp according to claim 1, characterised in that the widening assembly (9) comprises a support base (10), a first slide (11), a second slide (12),

the top of the supporting seat (10) is connected with the bottom end of the rod body (8);

the first sliding part (11) and the second sliding part (12) are arranged oppositely and distributed on two sides of the bottom of the supporting seat (10), and the first sliding part (11) and the second sliding part (12) are respectively connected with the bottom of the supporting seat (10) in a sliding manner;

one side surface that first sliding part (11) deviates from second sliding part (12) is first arc surface (21), one side surface that second sliding part (12) deviates from first sliding part (11) is second arc surface (22), will be in the retaining ring in lower passageway (3) in broadening subassembly (9), from top to bottom push out to the outer in-process of barrel (1), first arc surface (21) and second arc surface (22) respectively with the inner wall sliding contact all the time of lower passageway (3).

3. The retainer ring assembling jig according to claim 2, wherein the bottom of the support base (10) is provided with a slide groove (13), and both side surfaces of the slide groove (13) and the support base (10) form a first mouth portion (14) and a second mouth portion (15), respectively;

the first sliding part (11) comprises a first sliding block (16) and a first convex block (17) which are arranged up and down and connected with each other, the first sliding block (16) is inserted into the sliding groove (13) from the first opening part (14) and forms a first sliding pair with the sliding groove (13), and at least part of the first sliding block (16) is limited in the sliding groove (13); the first projection (17) is limited outside the sliding groove (13);

the second sliding part (12) comprises a second sliding block (18) and a second convex block (19) which are arranged up and down and connected with each other, the second sliding block (18) is inserted into the sliding groove (13) from the second opening part (15) and forms a second sliding pair with the sliding groove (13), and at least part of the second sliding block (18) is limited in the sliding groove (13); the second cam (19) is confined outside the sliding groove (13).

4. A retainer ring assembling jig according to claim 3, further comprising a small spring (20);

one side of the first sliding part (11) facing the second sliding part (12) is provided with a first blind hole, one side of the second sliding block (18) facing the first sliding block (16) is provided with a second blind hole (39), two ends of the small spring (20) are embedded into the first blind hole and the second blind hole (39) respectively, and the small spring (20) is in a compression state.

5. A retainer ring assembling jig according to claim 4, characterized in that the first slide portion (11) is provided with a first through hole (29), and the second slide portion (12) is provided with a second through hole (30);

the connecting rod (31) is further included, the length of the connecting rod (31) is equal to or smaller than the diameter of the second opening (40), two ends of the connecting rod (31) are respectively inserted into the first through hole (29) and the second through hole (30), and the outer surface of the connecting rod (31) is in sliding contact with the inner wall of the first through hole (29) and the inner wall of the second through hole (30).

6. A retainer ring assembling jig according to claim 5, characterized in that the bottom surface of the first projecting block (17) is provided with a magnet piece (37), and/or the bottom surface of the second projecting block (19) is provided with a magnet piece (37).

7. The retainer ring assembling jig according to claim 6, wherein the lower passage (3) comprises a circular truncated cone passage (42) and a cylindrical passage (44) which are vertically arranged and communicated with each other, the first opening (4) is an upper end opening of the circular truncated cone passage (42), and the second opening (40) is a lower end opening of the cylindrical passage (44);

the outer surface of the lower end of the cylinder body (1) forms a preset outer surface (45), the preset outer surface (45) is gradually narrowed from the first opening (4) to the direction of the second opening (40) and is converged with the outline of the second opening (40).

8. The retainer ring assembling jig of any one of claims 1 to 7, characterized in that a cylindrical upper channel (2) is further formed in the cylinder body (1), the upper channel (2) and the lower channel (3) extend in the same direction, the upper channel (2) is located above the lower channel (3), the upper channel (2) and the lower channel (3) are communicated through the first opening (4), the upper end of the upper channel (2) is opened into a third opening (41), and the widening component (9) extends into the cylinder body (1) through the third opening (41);

the barrel body (1) is provided with a strip-shaped opening (5), and the strip-shaped opening (5) is communicated with the upper channel (2) or the lower channel (3).

9. The retainer ring assembling jig of claim 8, further comprising an end cap (32), wherein the end cap (32) is simultaneously sleeved on the rod body (8) and the cylinder body (1), the end cap (32) is connected with the cylinder body (1), and the widening assembly (9) is limited in the cylinder body (1) by the end cap (32);

the top end of the rod body (8) is detachably connected with a handle (34), the outer surface of the rod body (8) is sleeved with a large spring (38), one end of the large spring (38) is abutted to the end cover (32), and the other end of the large spring is abutted to the handle (34).

10. A retainer ring assembling jig according to claim 9, characterized in that the end cap (32) is provided with an annular projection (35), and the bottom end of the large spring (38) is confined in the annular projection (35);

an annular groove (36) is formed in one side, facing the end cover (32), of the handle (34), the annular groove (36) is arranged around the rod body (8), and the top end of the large spring (38) is limited in the annular groove (36).

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