Riveting tool for floating sleeve and steel sleeve

Abstract

The utility model discloses a floating sleeve and steel sleeve riveting tool which can stably achieve riveting of a steel sleeve. Comprising a positioning plate, an end face pressing plate and a riveting structure, V-shaped iron and a pressing screw are fixed to the positioning plate, the V-shaped face of the V-shaped iron is used for being flush with the circumferential face of the floating sleeve for positioning, a positioning cylindrical pin is arranged at the bottom of the V-shaped face of the V-shaped iron, and the positioning cylindrical pin is used for being inserted into a positioning hole in the circumference of the floating sleeve for circumferential positioning of the floating sleeve. The end face pressing plate is provided with a receding groove in the radial direction, the receding groove is used for receding the pressing screw, a clamping space for the floating sleeve is formed between the end face pressing plate and the positioning plate, the pressing screw is used for axially pressing the floating sleeve through the end face pressing plate 7, and the riveting structure is used for pressing the floating sleeve steel sleeve into the floating sleeve.

Description

Technical Field

[0001] This utility model relates to the field of marine turbocharger technology, and in particular to a floating sleeve steel sleeve riveting tool. Background Technology

[0002] In recent years, my country's shipbuilding industry has developed rapidly, maintaining a leading global market share. As a crucial component of marine diesel engines, the turbocharger's technological level directly affects the engine's efficiency. The floating sleeve is a vital part of the turbocharger, located in the center. After forming an oil film with the main shaft bearing, it supports the rotor and plays a crucial role in the overall system's operational stability.

[0003] To ensure the floating sleeve functions effectively in the turbocharger system, the component has three locating holes on its circumference for fixing it to the bearing housing. Because the floating sleeve itself is made of a relatively soft material, a steel sleeve is used to improve the wear resistance of the locating holes and extend the overall service life of the component. To ensure the steel sleeve does not fall off after assembly, it must be riveted securely. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a floating sleeve steel sleeve riveting tool that can stably achieve the riveting of the steel sleeve.

[0005] The purpose of this utility model is achieved as follows:

[0006] A floating sleeve steel sleeve riveting tool includes a positioning plate, an end face pressure plate, and a riveting structure. A V-shaped iron block and a clamping screw are fixed on the positioning plate. The V-shaped surface of the V-shaped iron block is used to position it flush with the circumferential surface of the floating sleeve. A positioning cylindrical pin is provided at the bottom of the V-shaped surface of the V-shaped iron block. The positioning cylindrical pin is used to insert into a positioning hole on the circumference of the floating sleeve for circumferential positioning. A relief groove is provided radially on the end face pressure plate to allow space for the clamping screw. The space between the end face pressure plate and the positioning plate is a clamping space for the floating sleeve. The clamping screw is used to axially clamp the floating sleeve through the end face pressure plate. The riveting structure is used to press the floating sleeve steel sleeve into the floating sleeve and prevent it from coming out.

[0007] Preferably, the riveting structure includes a threaded plate and a guide sleeve fixed on the positioning plate. The guide sleeve has a stepped hole, and a stepped extrusion head is slidably fitted in the stepped hole of the guide sleeve. The guide sleeve is axially limited by the extrusion head through the stepped surface. A screw is threaded on the threaded plate. The screw is used to apply pressure to the extrusion head, and the extrusion head is used to press the floating sleeve steel sleeve into the floating sleeve so that it does not come out.

[0008] Preferably, the small-diameter end face of the extrusion head is provided with a groove, which is used to engage with the side wall of the floating sleeve steel sleeve.

[0009] Preferably, a sliding pin is provided radially on the large diameter section of the extrusion head, and a groove is provided on the guide sleeve. The sliding pin is engaged in the groove of the guide sleeve to form a circumferential limit on the extrusion head.

[0010] Preferably, the extrusion head is inclined outward relative to the axis of the floating sleeve steel sleeve.

[0011] By adopting the above technical solution, this utility model can stably achieve the riveting of the floating sleeve steel sleeve, ensuring that the steel sleeve does not fall off. Attached Figure Description

[0012] Figure 1 Schematic diagram of floating sleeve component;

[0013] Figure 2 Schematic diagram of floating steel sleeve assembly;

[0014] Figure 3 This is a schematic diagram of the present invention;

[0015] Figure 4 This is a schematic diagram of a threaded plate;

[0016] Figure 5 This is a schematic diagram of a sliding pin;

[0017] Figure 6 Schematic diagram of the guide sleeve;

[0018] Figure 7 This is a schematic diagram of the extrusion head;

[0019] Figure 8 Schematic diagram of end face pressure plate;

[0020] Figure 9 Schematic diagram of V-shaped iron;

[0021] Figure 10 Schematic diagram of a cylindrical pin;

[0022] Figure 11 This is a schematic diagram of the positioning plate.

[0023] Attached Figure

[0024] In the attached diagram, 1 is a screw (M8×26), 2 is a threaded plate, 3 is a sliding pin, 4 and 10 are cylindrical pins (A4×20), 5 is a guide sleeve, 6 is a pressing head, 7 is an end face pressure plate, 8 is a clamping screw (M8×32 socket head cap screw), 9 is a socket head cap screw (M4×15), 11 is a V-block, 12 is a locating cylindrical pin, 13 is a locating plate, and 14 is a socket head cap screw (M8×16). Detailed Implementation

[0025] A floating sleeve steel sleeve riveting tool is first analyzed. The two end faces of the floating sleeve are used as the positioning surface and the pressing surface, respectively. The side is flattened by a V-shaped block. Three Φ3 holes on the circumference are used for positioning and anti-rotation. The angle position of the three Φ3 holes and the fitting hole of the steel sleeve is fixed. Each time the Φ3 hole is changed for positioning, the riveting of one steel sleeve is completed.

[0026] This tool is mainly divided into four parts: support part, clamping part, positioning part, and riveting part.

[0027] ① Supporting part: Positioning plate 13 mainly plays a supporting role.

[0028] ② Clamping part: It consists of end face pressure plate 7 and clamping screw 8, and is mainly used to clamp parts.

[0029] ③ Positioning part: It consists of V-shaped iron 11 and positioning cylindrical pin 12, which are used for positioning and preventing rotation.

[0030] ④ Riveting Part: Composed of screw 1, threaded plate 2, sliding pin 3, cylindrical pin 4, guide sleeve 5, and pressing head 6, used to rivet the steel sleeve. The sliding pin 3 moves in the groove of the guide sleeve 5 to prevent the pressing head 6 from rotating during the riveting process. After riveting, the sliding pin 3 can be moved to remove the pressing head 6.

[0031] This tool can be used with a bench vise. Fix the tool flat on the bench vise, place the floating sleeve onto the positioning plate 13, and simultaneously position it with the positioning cylindrical pin 12 while resting the side of the floating sleeve against the V-shaped surface of the V-shaped iron 11. Use the end face pressure plate 7 and the clamping screw 8 to clamp it. Rotate the screw 1 to move the pressing head 6 forward in the guide sleeve 5, riveting and deforming the side wall of the hole where the floating sleeve mates with the steel sleeve. Flip it over and position it with the other end face, using the same pin hole, riveting and deforming the other side wall of the hole where the floating sleeve mates with the steel sleeve. After riveting both sides, the inserted steel sleeve cannot fall off. Change the positioning pin hole and repeat the above steps to complete the riveting of the remaining two steel sleeves.

[0032] 1. The riveting position is 1-1.5mm away from the assembly hole opening. At this position, the riveting is not easy to crush the parts, and the deformation of the riveting is sufficient to ensure that the steel sleeve does not come out. The guide sleeve 5 can be moved in the groove of the positioning plate 13 to adjust the distance. After the distance is determined, the positioning pin hole of the guide sleeve is made. 2. The end face of the extrusion head 6 is machined with a slope (groove) to facilitate cutting and achieve extrusion deformation. The diameter of the extrusion head is adjusted according to the riveting width requirement.

[0033] Specifically:

[0034] This utility model includes a positioning plate 13, an end face pressure plate 7, and a riveting structure. A V-shaped iron 11 and a clamping screw 8 are fixed on the positioning plate 13. The V-shaped surface of the V-shaped iron 11 is used to be flush with the circumferential surface of the floating sleeve for positioning. A positioning cylindrical pin 12 is provided at the bottom of the V-shaped surface of the V-shaped iron 11. The positioning cylindrical pin 12 is used to be inserted into the positioning hole on the circumference of the floating sleeve for circumferential positioning of the floating sleeve. A relief groove is provided on the end face pressure plate 7 along the radial direction for the relief groove to allow the clamping screw 8 to move. The space between the end face pressure plate 7 and the positioning plate 13 is the clamping space of the floating sleeve. The clamping screw 8 is used to axially press the floating sleeve through the end face pressure plate 7. The riveting structure is used to press the floating sleeve steel sleeve into the floating sleeve and prevent it from coming out.

[0035] The riveting structure includes a threaded plate 2 fixed on the positioning plate 13 and a guide sleeve 5. The guide sleeve 5 has a stepped hole, and a stepped extrusion head 6 is slidably fitted in the stepped hole of the guide sleeve 5. The guide sleeve 5 is axially limited by the stepped surface of the extrusion head 6. A screw 1 is threaded on the threaded plate 2. The screw 1 is used to apply pressure to the extrusion head 6, and the extrusion head 6 is used to press the floating sleeve steel sleeve into the floating sleeve.

[0036] The small-diameter end face of the extrusion head 6 is provided with a groove for engaging with the side wall of the floating sleeve. A sliding pin 3 is radially provided on the large-diameter section of the extrusion head 6, and a groove is provided on the guide sleeve 5. The sliding pin 3 engages within the groove of the guide sleeve 5, forming a circumferential limit on the extrusion head 6. The extrusion head 6 is inclined outward relative to the axis of the floating sleeve, facilitating a smooth riveting process.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A floating sleeve steel sleeve riveting tool, characterized in that: It includes a positioning plate, an end face pressure plate, and a riveting structure. A V-shaped iron and a clamping screw are fixed on the positioning plate. The V-shaped surface of the V-shaped iron is used to be positioned flush with the circumferential surface of the floating sleeve. A positioning cylindrical pin is provided at the bottom of the V-shaped surface of the V-shaped iron. The positioning cylindrical pin is used to be inserted into the positioning hole on the circumference of the floating sleeve to position the floating sleeve circumferentially. A radial groove is provided on the upper edge of the end face pressure plate. The groove is used to make way for the clamping screw. The clamping space of the floating sleeve is between the end face pressure plate and the positioning plate. The clamping screw is used to axially clamp the floating sleeve through the end face pressure plate 7. The riveting structure is used to press the floating sleeve steel sleeve into the floating sleeve to prevent it from falling out.

2. A floating sleeve steel sleeve riveting tool according to claim 1, characterized in that: The riveting structure includes a threaded plate and a guide sleeve fixed on the positioning plate. The guide sleeve is provided with a step hole. A step-shaped extrusion head is slidably fitted in the step hole of the guide sleeve. The guide sleeve is axially limited by the step surface of the extrusion head. The threaded plate is threaded with a screw. The screw is used to apply pressure to the extrusion head. The extrusion head is used to press the floating sleeve steel sleeve into the floating sleeve to prevent it from falling out.

3. A floating sleeve steel sleeve riveting tool according to claim 2, characterized in that: A clamping groove is arranged on the end surface of the small diameter section of the extrusion head, and the clamping groove is used for clamping with the side wall of the floating sleeve steel sleeve.

4. A floating sleeve steel sleeve riveting tool according to claim 3, characterized in that: A sliding pin is radially arranged on the large diameter section of the extrusion head, a sliding groove is arranged on the guide sleeve, the sliding pin is matched in the sliding groove of the guide sleeve, and the sliding pin forms a circumferential limit for the extrusion head.

5. The floating sleeve steel sleeve riveting tool according to claim 1, characterized in that: The extrusion head is tilted outward relative to the axis of the floating sleeve steel sleeve.

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