Anti-impact guide type snap ring assembly tool

Abstract

The utility model discloses an anti-impact guide type snap ring assembly tool which comprises a tool body and a guide plate installed on the tool body, the guide plate is provided with a front guide section and a rear guide section, the width of the front guide section is gradually increased from front to back, and the width of the rear guide section is gradually reduced from front to back; the tool body is provided with an expanding section, and the front guide section is attached to the surface of the expanding section; according to the anti-impact guide type snap ring assembly tool, the guide plate is arranged on the tool body, the guide plate can guide a snap ring in the expanding and contracting process of the snap ring, the impact force between the snap ring and a shaft is greatly reduced through guiding of the rear guide section, the whole tool remarkably improves the guide precision of snap ring assembly, and the service life of the snap ring is prolonged. And the accuracy and the reliability of the clamping ring during axial positioning are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of snap ring assembly, and relates to an anti-impact guiding type snap ring assembly tool. BACKGROUND

[0002] In the field of assembly technology, snap rings are usually used to fix two components to ensure that they do not relatively displace under certain load or movement. The traditional method of assembling a snap ring is to expand the snap ring to the outer diameter of the shaft through a tool, and then apply pressure in the axial direction to force the snap ring to slide to the position of the snap groove on the shaft.

[0003] However, this assembly method has significant defects: when the snap ring directly shrinks to the working position after being separated from the tool, a great impact force is generated due to the sudden tightening of the snap ring, which not only damages the snap ring itself and the snap groove of the shaft with which it cooperates, but also may cause micro-cracks at the contact position of the snap ring and the shaft, reducing the assembly quality and durability. In addition, when the impact force during the shrinkage of the snap ring is too large, the snap ring may collide with the shaft and produce a rebound, which not only further aggravates the damage to the shaft snap groove, but also may cause the snap ring to be misaligned, and even cause impact damage to other surrounding parts, affecting the stability and safety of the entire assembly structure.

[0004] To solve the above problems, an assembly device is needed that effectively reduces the impact force of the snap ring assembly and prevents rebound. SUMMARY

[0005] Therefore, the utility model provides an anti-impact guiding type snap ring assembly tool, a guide plate is arranged on the tool body, the guide plate can guide the snap ring during the expansion and shrinkage of the snap ring, and the impact force between the snap ring and the shaft is greatly reduced through the guidance of the rear guide section, the entire tool significantly improves the guiding accuracy of the snap ring assembly, and ensures the accuracy and reliability of the snap ring during axial positioning.

[0006] The anti-impact guiding type snap ring assembly tool disclosed by the utility model comprises a tool body and a guide plate installed on the tool body, the guide plate is provided with a front guide section and a rear guide section, the width of the front guide section gradually increases from front to back, and the width of the rear guide section gradually decreases from front to back; the tool body is provided with an expansion section, and the front guide section is arranged on the surface of the expansion section.

[0007] Further, the tool body is also provided with a mounting section, the guide plate is also provided with a positioning section, and the positioning section is arranged on the surface of the mounting section.

[0008] Further, the front guide section and the rear guide section are integrally formed and sequentially arranged from front to back.

[0009] Further, the mounting section is a cylindrical structure, the expanding section is a circular truncated cone structure with gradually increasing radial dimension from front to back, the mounting section and the expanding section are coaxially arranged, and the expanding section is integrally formed at the front of the mounting section.

[0010] Further, the positioning section is a strip structure, the positioning section extends from front to back along the axial direction of the mounting section to the expanding end, and is integrally connected to the front guide section.

[0011] Further, the rear guide section has a guide edge, the guide edge is arranged inwardly and obliquely backward, and the guide edge is symmetrically provided with two guide edges.

[0012] Further, the utility model further includes a lifting tool, the lifting tool is detachably installed on the tool body, and the lifting tool and the tool body are coaxially arranged.

[0013] Further, the front guide section and the rear guide section are connected in a circular arc transition.

[0014] The utility model discloses the beneficial effect:

[0015] The utility model discloses an anti-impact guide type snap ring assembly tool, which is provided with a guide plate on the tool body, the front guide section of the guide plate can guide the opening of the snap ring during the expansion of the snap ring, the rear guide section of the guide plate guides the snap ring during the contraction of the snap ring, and through the guidance of the rear guide section, the one-time impact of the snap ring is converted into slow and smooth contraction, the impact force between the snap ring and the shaft is greatly reduced, the problem of damage to the snap ring or the shaft caused by excessive impact force is effectively avoided, the guide precision of the snap ring assembly of the whole tool is significantly improved, and the accuracy and reliability of the axial positioning of the snap ring are ensured.

[0016] The utility model not only solves the problems of impact and rebound in the assembly of the snap ring, but also improves the assembly precision, efficiency and overall quality, effectively reduces the maintenance cost, and has high practical value and market application prospect. DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 It is Figure 2 It is a local enlarged view of A-A;

[0020] Figure 4 It is a structural schematic view of the tool body of the utility model;

[0021] Figure 5The utility model discloses a guide plate's structure schematic view.

[0022] Figure 6 The utility model discloses a guide plate's front view. Specific implementation

[0023] Need to explain, in the description of this specification, the orientation or positional relation that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" etc. indicate is based on the orientation or positional relation shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and is not the orientation or positional relation of the device or element that is indicated or implied must have a particular orientation, constructs and operates with a particular orientation, therefore can not be understood as the limitation of the utility model. In this embodiment, the front-back direction is the mounting direction of the snap ring, and the direction of the snap ring into the tool body is front, and the direction away from the tool body is back, and specifically to this embodiment, Figure 2 The upper in the above is front, and the lower is back, which can be understood by those skilled in the art, and will not be repeated here.

[0024] The utility model discloses a prevent impact guide type snap ring assembly tool, including tool body and install in the guide plate of tool body, the guide plate sets up front guide section 3 and rear guide section 4, the width of front guide section 3 gradually increases from front to back, and the width of rear guide section 4 gradually decreases from front to back, the tool body sets up the expansion section 1, and the front guide section 3 is attached to the surface setting of expansion section 1. In this embodiment, the front guide section 3 and rear guide section 4 are integrally formed and are sequentially arranged from front to back, the front guide section 3 and rear guide section 4 are connected in arc transition, the rear guide section 4 has the guide edge 8 as shown in the drawing, the guide edge 8 is inward and obliquely backward inclined setting, and the guide edge 8 is symmetrically provided with two. As shown in the drawing, the width of the front guide section 3 and the rear guide section 4 in this embodiment refers to the corresponding width of the radial projection of the front guide section 3 and the rear guide section 4 in the tool body (that is, the corresponding width of the front guide section 3 and the rear guide section 4 in the radial direction of the tool body) Figure 6The distance between the lateral edges of the middle and rear guide sections 3 and 4, which is understood by those skilled in the art and is not described here; the front guide section 3 is a gradually expanding structure as shown in the figure, and the rear guide section 4 is a gradually decreasing structure, the edges at the connection position are connected through a circular arc transition, plus two symmetric and inclined guide edges 8, so that the above two are approximately fan-shaped structures. In this embodiment, the rear end of the expanding section 1 is also integrally formed with a linear buffer section 7 in the form of a column, and when the front guide section 3 is arranged, the rear end of the front guide section 3 exceeds the linear buffer section 7 in the axial direction, as shown in the figure. After the snap ring is installed, it will be expanded when entering the expanding section 1, and the opening of the snap ring will gradually open under the guidance of the front guide section 3, and when the snap ring passes through the front guide section 3, it is separated from the tool body, and after the snap ring passes through the front guide section 3, it begins to shrink, and through the guidance of the two guide edges 8 of the rear guide section 4, the one-time impact of the snap ring is converted into slow and smooth shrinkage, greatly reducing the impact force between the snap ring and the shaft, effectively avoiding the problem of damage to the snap ring or the shaft caused by excessive impact force. The utility model not only solves the problems of impact and rebound in snap ring assembly, but also improves the assembly precision, efficiency and overall quality, effectively reduces the maintenance cost, has high practical value and market application prospect

[0025] In this embodiment, the tool body is also provided with a mounting section 2, and the guide plate is also provided with a positioning section 5, and the positioning section 5 is arranged on the surface of the mounting section 2. In this embodiment, the positioning section 5 is in the form of a strip structure, and the positioning section 5 extends from front to back along the axis direction of the mounting section 2 to the expanding end, and is integrally connected to the front guide section 3. In this embodiment, the mounting section 2 is in the form of a cylindrical structure, and the expanding section 1 is in the form of a circular truncated cone structure with gradually increasing radial size from front to back, and the mounting section 2 and the expanding section 1 are coaxially arranged, and the expanding section 1 is integrally formed in front of the mounting section 2. As shown in the figure, the mounting section 2 is in the form of a cylindrical structure, and the mounting section 2 is used to install the snap ring into the tool body and guide it into the expanding section 1, and the expanding section 1 is in the form of a horn-shaped structure with large upper and small lower as shown in the figure, and the snap ring will be expanded synchronously with the diameter change of the expanding section 1 under axial stress, and the positioning section 5 is mainly used to position the snap ring on the positioning tool to avoid rotation, and also used to guide the opening of the snap ring to the front guide section 3 to play an auxiliary guiding role. In this embodiment, the guide plate is integrally installed on the surface of the tool body through screws, and the guide plate is conformal with the surface of the tool body to ensure that the guide plate is attached to the surface of the tool body. The positioning section 5, the front guide section 3 and the rear guide section 4 are integrally formed, and the positioning section 5 extends from the front end of the mounting section 2 to the rear of the expanding section 1 and then connects to the front guide section 3, as shown in the figure.

[0026] In the embodiment, the lifting tool 6 is detachably mounted on the tool body, and the lifting tool 6 and the tool body are coaxially arranged. In the embodiment, the tool body is provided with a mounting plate 9, the lifting tool 6 is detachably mounted on the top surface of the mounting plate 9 through screws, and the mounting plate 9 is further provided with a positioning pin 10 for positioning the mounting of the lifting tool 6. The lifting tool 6 is used for lifting or lowering the tool body.

[0027] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A shock absorbing and guiding snap ring assembly tool, characterized by: The tool body is provided with a diameter expansion section, and the front guide section is arranged on the surface of the diameter expansion section.

2. The impact-avoiding guiding type clasp assembly tool according to claim 1, characterized in that: The tool body is further provided with a mounting section, and the guide plate is further provided with a positioning section arranged on the surface of the mounting section.

3. The impact-avoiding guiding type clasp assembly tool according to claim 1, characterized in that: The front guide section and the rear guide section are integrally formed and arranged in sequence from front to back.

4. The impact-avoiding guiding type clasp assembly tool according to claim 2, characterized in that: The mounting section is in a cylindrical structure, the diameter expansion section is in a circular table type structure with a gradually increasing radial dimension from front to back, the mounting section and the diameter expansion section are coaxially arranged, and the diameter expansion section is integrally formed in front of the mounting section.

5. The shock absorbing guide type snap ring assembly tool according to claim 2 or 4, characterized by: The positioning section is in a strip structure, extends from front to back along the axial direction of the mounting section to the diameter expansion section, and is integrally connected to the front guide section.

6. The impact-avoiding guiding type clasp assembly tool according to claim 1, wherein: The rear guide section has a guide edge, the guide edge is arranged inwardly and obliquely backward, and the guide edge is symmetrically provided with two guide edges.

7. The impact-avoiding guiding type clasp assembly tool according to claim 1, characterized in that: The tool body is further provided with a mounting section, and the guide plate is further provided with a positioning section arranged on the surface of the mounting section.

8. The impact-avoiding guiding type clasp assembly tool according to claim 1, characterized in that: The front guide section and the rear guide section are circularly arc transitionally connected.

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