Piston pin clamp spring installation tool

Abstract

The utility model relates to the technical field of auxiliary tools, in particular to a piston pin clamp spring mounting tool which comprises a bearing base, a clamping spring and a clamping spring fixing device. The guide sleeve comprises an outer cylinder, the outer cylinder is provided with a channel for containing at least one piston pin clamping spring, and an opening for the piston pin clamping spring to penetrate through is formed in the first axial end of the channel; the driving assembly comprises a pushing handle arranged outside the channel and a pushing piece which is arranged in the channel in a sliding mode and can push the piston pin clamping spring, and the pushing handle is connected to the pushing piece. When the piston pin clamp spring is installed, a piston can be placed on the bearing base, the piston pin hole is aligned with the opening, at the first end, of the channel, the piston pin clamp spring can be pushed into the piston pin hole through the pushing piece by pushing the handle, the requirement for the proficiency of workers can be lowered, and the installation efficiency is improved; continuous operation can be carried out, and the installation efficiency of the piston pin clamp spring is further improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of auxiliary tooling, and particularly to a piston pin circlip installation tooling. Background Art

[0002] A piston pin is a cylindrical pin installed in the piston skirt. The middle part of it passes through the small end hole of the connecting rod to connect the piston and the connecting rod, and transmit the gas force borne by the piston to the connecting rod. In order to prevent the piston pin from moving around in the piston pin hole, piston pin circlips are assembled at both ends of the piston pin hole to position the piston pin, reduce the wear between the piston pin and the piston, and make the movement track of the connecting rod accurate.

[0003] At present, the trial production workshop usually installs the piston pin circlip manually, which not only easily causes the problem of scratching the piston pin hole, but also requires a high degree of proficiency in the operation of workers for manual installation, and the installation efficiency is low. Utility Model Content

[0004] To solve the above problems, the present disclosure provides a piston pin circlip installation tooling.

[0005] The present disclosure provides a piston pin circlip installation tooling, including:

[0006] A bearing base for bearing the piston;

[0007] A guiding sleeve, including an outer cylinder, the outer cylinder having a channel for accommodating at least one piston pin circlip, and an opening for the piston pin circlip to pass through is provided at a first end of the channel in its axial direction;

[0008] A driving assembly, including a pushing handle arranged outside the channel and a pushing member slidably arranged in the channel and capable of pushing the piston pin circlip, the pushing handle being connected to the pushing member.

[0009] Optionally, the diameter of the opening is smaller than the diameter of the piston pin hole of the piston.

[0010] Optionally, the outer diameter of the outer cylinder is smaller than the diameter of the piston pin hole.

[0011] Optionally, a buffer protection layer is provided on the axial end face and the outer circumferential surface of the outer cylinder at its first end.

[0012] Optionally, the guiding sleeve further includes an inner cylinder connected to the outer cylinder, the inner cylinder being arranged in the channel to form a C-shaped cavity adapted to the piston pin circlip with the outer cylinder.

[0013] Optionally, an opening for the pushing member to enter and exit the channel is provided at a second end of the channel in its axial direction, and the pushing handle is located outside the second end of the channel.

[0014] Optionally, the driving assembly further includes a reset elastic member. One end of the reset elastic member abuts against or is connected to the guiding sleeve, and the other end abuts against or is connected to the pushing handle. When the pushing handle is driven by force to drive the pushing member, the reset elastic member is compressed.

[0015] Optionally, the pushing handle is located outside the second end of the channel in the axial direction. One end of the pushing handle is fixedly connected to the bearing base, and the other end is suspended. When the pushing handle is driven by force to drive the pushing member, it swings towards the direction close to the first end of the channel and generates elastic deformation.

[0016] towards the first end of the channel and generates elastic deformation.

[0017] Optionally, the bearing base includes a bearing table and a support table connected to each other. An interval groove is formed between the bearing table and the support table. The outer cylinder is connected to the bearing table, and the pushing handle is connected to the support table.

[0018] Optionally, the bearing base and the guiding sleeve are integrally formed.

[0019] The technical solution provided by the embodiment of the present disclosure has the following advantages compared with the prior art:

[0020] By providing a bearing base, a guiding sleeve and a driving assembly, the outer cylinder has a channel for accommodating at least one piston pin circlip, and an opening for the piston pin circlip to pass through at the first end of the channel in its axial direction. The pushing handle can drive the pushing member to move in the channel, and then push the piston pin circlip into the piston pin hole through the opening. Thus, when installing the piston pin circlip, the piston can be placed on the bearing base, and the piston pin hole can be aligned with the opening at one end of the channel. Pushing the pushing handle can push the piston pin circlip into the piston pin hole through the pushing member, which can reduce the proficiency requirements for workers and improve the installation efficiency. Moreover, when multiple piston pin circlips are accommodated in the outer cylinder, continuous operation can be carried out, further improving the installation efficiency of the piston pin circlip. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure 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, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a schematic structural diagram of the piston pin circlip installation tooling cooperation structure according to the embodiment of the present disclosure;

[0024] Figure 2 A cross-sectional schematic view of the piston pin circlip installation tooling mating structure according to an embodiment of the present disclosure;

[0025] Figure 3 An axial view of the guide sleeve;

[0026] Figure 4 A cross-sectional schematic view of the piston without the piston pin circlip installed;

[0027] Figure 5 A cross-sectional schematic view of the piston with the piston pin circlip installed.

[0028] Among them,

[0029] 1. Bearing base; 11. Bearing table; 12. Support table;

[0030] 2. Guide sleeve; 21. Outer cylinder; 211. Channel; 22. Inner cylinder;

[0031] 3. Driving assembly; 31. Pushing handle; 32. Pushing member;

[0032] 10. Piston; 101. Piston pin hole; 102. Circlip groove; 20. Piston pin circlip. Detailed implementation manners

[0033] In order to be able to more clearly understand the above-mentioned objects, features, and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0035] As Figures 1 to 3 shown, an embodiment of the present disclosure provides a piston pin circlip installation tooling, and this piston pin circlip installation

[0036] tooling includes a bearing base 1, a guide sleeve 2, and a driving assembly 3. Among them, the bearing base 1 is used to carry the piston 10, and the piston 10 has a piston pin hole 101. The guide sleeve 2 includes an outer cylinder 21, the outer cylinder 21 has a channel 211 for accommodating at least one piston pin circlip 20, and an opening for the piston pin circlip 20 to pass through is provided at the first end of the channel 211 in its axial direction. The driving assembly 3 includes a pushing handle 31 provided outside the channel 211 and a pushing member 32 provided in the channel 211 and capable of pushing the piston pin circlip 20, and the pushing handle 31 is connected to the pushing member 32.

[0037] Understandably, by providing the carrier base 1, the guide sleeve 2, and the drive assembly 3, the outer cylinder 21 has a channel for accommodating at least one piston pin circlip 20, and the channel has the above-mentioned opening at its first end in the axial direction. When the push handle 31 is stressed, it can drive the pusher 32 to push the piston pin circlip 20 into the piston pin hole 101 through the opening. Thus, during assembly, the piston 10 can be placed on the carrier base 1, and the piston pin hole 101 can be aligned with the opening at one end of the channel. Pushing the push handle 31 can push the piston pin circlip 20 into the piston pin hole 101 through the pusher 32, which can reduce the proficiency requirements for workers and improve the installation efficiency. Moreover, when multiple piston pin circlips 20 are accommodated in the outer cylinder 21, continuous operation can be performed, further improving the installation efficiency of the piston pin circlip 20.

[0038] Furthermore, the diameter of the above-mentioned opening is smaller than the diameter of the piston pin hole 101 of the piston 10. That is to say, the inner diameter of the above-mentioned channel 211 is smaller than the diameter of the piston pin circlip 20 in the free state.

[0039] Understandably, when the piston pin circlip 20 is installed in the piston pin hole 101, the piston pin circlip 20 needs to be compressed and contracted. Therefore, the inner diameter of the channel 211 is set to be smaller than the diameter of the piston pin circlip 20 in the free state, that is, the piston pin circlip 20 is in a contracted state in the channel 211, so as to facilitate the piston pin circlip 20 to enter the piston pin hole 101 through the above-mentioned opening.

[0040] It should be noted that the inner diameter of the above-mentioned channel 211 is preferably smaller than the diameter of the piston pin hole 101. In this way, it is more convenient for the piston pin circlip 20 to enter the piston pin hole 101.

[0041] In some embodiments, the outer diameter of the above-mentioned outer cylinder 21 is smaller than the diameter of the piston pin hole 101.

[0042] Understandably, setting the outer diameter of the outer cylinder 21 to be smaller than the diameter of the piston pin hole 101 enables the outer cylinder 21 to extend into the piston pin hole 101. Thus, when installing the piston pin circlip 20, the outer cylinder 21 can be extended into the piston pin hole 101, which can not only achieve the mutual positioning of the outer cylinder 21 and the piston 10, but also enable the piston pin circlip 20 to enter the piston pin hole 101 immediately after being pushed out of the channel, preventing the piston pin circlip 20 from falling to the outside.

[0043] Furthermore, a buffer protection layer is provided on the axial end face and the outer peripheral surface of the first end of the above-mentioned outer cylinder 21.

[0044] Understandably, since the outer cylinder 21 can extend into the piston pin hole 101, in order to prevent the outer cylinder 21 from scratching the wall surface of the piston pin hole 101, a buffer protection layer is provided on the axial end face and the outer peripheral surface of the first end of the outer cylinder 21 to buffer the contact between the outer cylinder 21 and the piston 10.

[0045] The above-mentioned buffer protection layer can be selected as a flexible body installed on the outer cylinder 21. The material of the flexible body can be selected as rubber, foam, etc., or it can also be selected to be formed by coating on the outer cylinder 21, and the coating material can be a resin material.

[0046] Optionally, in some other embodiments, the outer diameter of the above-mentioned outer cylinder 21 can also be set to be greater than or equal to the diameter of the piston pin hole 101.

[0047] Refer to Figure 2 and Figure 3 In some embodiments, with reference to

[0048] and

[0049] the guiding sleeve 2 further includes an inner cylinder 22 connected to the outer cylinder 21. The inner cylinder 22 is disposed in the channel 211 to form a C-shaped cavity adapted to the piston pin circlip 20 with the outer cylinder 21.

[0050] Understandably, the inner cylinder 22 is connected to the outer cylinder 21 and is disposed in the channel 211 to form a C-shaped cavity adapted to the piston pin circlip 20 with the outer cylinder 21. In this way, the piston pin circlip 20 can be placed in the C-shaped cavity, and the piston pin circlip 20 is limited by the cooperation of the outer cylinder 21 and the inner cylinder 22, so that the piston pin circlip 20 maintains a stable shape. Especially when the piston pin circlip 20 is in a contracted state, it can remain stable in the C-shaped cavity, so that when the piston pin circlip 20 is pushed, it can move stably in a contracted state.

[0051] Optionally, the shape of the above-mentioned pusher 32 can also be set to C-shaped, so that it can be adapted to the shape of the piston pin circlip 20 in the C-shaped cavity, thereby pushing the whole piston pin circlip 20 to move, improving the smoothness of the piston pin circlip 20 moving in the C-shaped cavity, and improving the installation efficiency of the piston pin circlip 20.

[0052] In some embodiments, with reference to Figure 1 and Figure 2, the pushing handle 31 is located outside the second end of the channel 211 in the axial direction. The pushing handle 31 is an elastic member. One end of the pushing handle 31 is fixedly connected to the bearing base 1, and the other end is suspended. When the pushing handle 31 is driven by force to drive the pushing member 32, it swings towards the first end of the channel 211 and generates elastic deformation.

[0053] Understandably, when the pushing handle 31 is driven by force to drive the pushing member 32, the pushing handle 31 swings towards the first end of the channel 211 and generates elastic deformation. Thus, after the pushing handle 31 is no longer subjected to force, the pushing handle 31 will swing towards the direction away from the first end of the channel, thereby driving the pushing member 32 to move towards the second end of the channel 211. At this time, the elastic force generated by the deformation of the pushing handle 31 itself can be used to make the pushing handle 31 return to its initial position. The initial position of the pushing handle 31 refers to the position where the pushing handle 31 is in its natural state.

[0054] Furthermore, referring to Figure 1 and Figure 2 , the above-mentioned bearing base 1 includes a connected bearing platform 11 and a support platform 12. An interval groove is formed between the bearing platform 11 and the support platform 12. The outer cylinder 21 is connected to the bearing platform 11, and the pushing handle 31 is connected to the support platform 12. Among them, the bearing platform 11 is used to bear the piston 10.

[0055] Understandably, the pushing handle 31 and the outer cylinder 21 are respectively connected to the support platform 12 and the bearing platform 11. The pushing handle 31 is located outside the second end of the outer cylinder 21 in the axial direction. The support platform 12 and the bearing platform 11 are connected but form an interval groove, which is beneficial to reducing the weight of the bearing base 1.

[0056] Furthermore, the above-mentioned bearing base 1 and the guiding sleeve 2 are integrally formed. That is to say, the bearing platform 11, the support platform 12, the outer cylinder 21 and the inner cylinder 22 can be integrally processed and formed. In this way, the number of components can be reduced and the assembly difficulty can be lowered.

[0057] Optionally, the above-mentioned outer cylinder can also be supported on the support platform and the bearing platform at the same time. That is to say, the first end of the outer cylinder is supported on the bearing platform, and the second end is supported on the support platform.

[0058] Optionally, in some other embodiments, the above-mentioned driving assembly 3 may further include a reset elastic member. One end of the reset elastic member abuts against or is connected to the guiding sleeve 2, and the other end abuts against or is connected to the pushing handle 31. When the pushing handle 31 is driven by force to drive the pushing member 32, the reset elastic member is compressed.

[0059] Understandably, by setting the reset elastic member, when the pushing handle 31 drives the pushing member 32, the reset elastic member is compressed, and also

[0060] When the piston pin circlip 20 is pushed into the piston pin hole 101, the reset elastic member is compressed. Thus, when the pushing handle 31 is not stressed, the reset elastic member pushes the pushing handle 31 to drive the pushing member 32 to move away from the piston pin hole 101, facilitating the next operation and facilitating the placement of a new piston pin circlip 20 into the channel 211.

[0061] As Figure 4 shown, a circlip groove 102 for accommodating the piston pin circlip 20 is further formed in the piston 10. As Figure 5 shown, the piston pin circlip 20 is located in the circlip groove 102 after installation. When installing the piston pin circlip 20 by the above-mentioned piston pin circlip installation tooling, the outer cylinder 21 extends into the piston pin hole 101, the pushing handle 31 is pushed, and the pushing handle 31 drives the pushing member 32 to push the piston pin circlip 20 in the channel 211 into the piston pin hole 101 and finally into the circlip groove 102. When the pushing handle 31 is released, the pushing handle 31 returns to the initial position under the action of its own deformation and / or the elastic reset member.

[0062] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0063] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A piston pin retaining spring installation tool, characterized in that: include: A bearing base for bearing the piston; The guide sleeve comprises an outer sleeve, wherein the outer sleeve has a passage for accommodating at least one piston pin retaining ring, and the passage is provided with an opening for the piston pin retaining ring to pass through at a first axial end thereof; The driving assembly comprises a pushing handle arranged outside the channel and a pushing member slidably arranged in the channel and capable of pushing the piston pin retaining ring, wherein the pushing handle is connected to the pushing member.

2. The piston pin retaining spring installation tool according to claim 1, characterized in that: The diameter of the opening is smaller than the diameter of the piston pin hole of the piston.

3. The piston pin retaining spring installation tool according to claim 1, characterized in that: The outer diameter of the outer cylinder is smaller than the diameter of the piston pin hole.

4. The piston pin retaining spring installation tool according to claim 3, characterized in that: The outer cylinder is provided with a buffer protection layer on the axial end surface and the outer peripheral surface of the first end thereof.

5. The piston pin retaining spring installation tool according to claim 1, characterized in that: The guide sleeve also includes an inner sleeve connected to the outer sleeve. The inner sleeve is arranged in the channel to form a C-shaped cavity adapted to the piston pin retaining ring with the outer sleeve.

6. The piston pin retaining spring installation tool according to claim 1, characterized in that: The channel is provided with an opening at the second axial end thereof for the pushing member to enter and exit the channel, and the pushing handle is located at the outer side of the second end of the channel.

7. The piston pin retaining spring installation tool according to claim 1, characterized in that: The driving assembly further comprises a resetting elastic member, one end of which abuts against or is connected to the guide sleeve, and the other end of which abuts against or is connected to the pushing handle.

8. The piston pin retaining spring installation tool according to claim 1, characterized in that: The pushing handle is located outside the second end of the channel in the axial direction. The pushing handle is an elastic member, and one end of the pushing handle is fixedly connected to the bearing base, and the other end is suspended.

9. The piston pin retaining spring installation tool according to claim 8, characterized in that: The bearing base comprises a bearing platform and a supporting platform connected to each other, a spacing groove is formed between the bearing platform and the supporting platform, the outer cylinder is connected to the bearing platform, and the pushing handle is connected to the supporting platform.

10. The piston pin retaining spring installation tool according to claim 1, characterized in that: The bearing base and the guide sleeve are integrally formed.

Images