A new sleeve yoke with welding flash slot

Abstract

The present invention relates to a new sleeve yoke that eliminates the difficulties encountered in the thread cutting process due to welding flash (F) that occurs in sleeve yokes (A) formed by friction welding.

Description

[0001] A NEW SLEEVE YOKE WITH WELDING FLASH SLOT

[0002] FIELD OF THE INVENTION

[0003] The present invention relates to a new sleeve yoke that eliminates the difficulties encountered in the thread cutting process due to welding flash that occurs in sleeve yokes formed by friction welding.

[0004] PRIOR ART

[0005] The cardan shaft is responsible for transmitting the torque and rotational movement generated by the engine and transferred via the gearbox to another shaft or the differential, whether at fixed or variable angular positions. Depending on the vehicle layout and technical specifications, there are two types of usage: fixed (usually called the front cardan shaft) and sliding type. Sliding type cardan shafts meet the need for length change due to road conditions. Sliding tool parts consist of a hollow and forked threaded part (sleeve yoke) and a threaded shaft (sliding shaft). The hollow yoked part is shaped by hot forging, and the forked areas and the area to be threaded are produced by machining. This process causes cost and environmental pollution due to both the machining time and the amount of chips discarded. In order to prevent this cost and environmental pollution, the sleeve yoke production method is changed and a yoked part and a wall tube are joined by friction welding method. After the friction welding process, threading application should be performed and production should be completed. The threading process is a machining method performed by removing chips from the hollow area of a threaded shaft called a broach tool.

[0006] A welding flash is formed in the friction welded area. Welding flash refers to the residue generated during the friction welding process that joins the yoked part to the tube. tube Said welding flash has a hardness value higher than the hardness of the yoked part and the tube. For this reason, welding flash with this high hardness value causes the shaft used during the threading process to break. After friction welding, welding flash occurs both in the area where the thread will be opened and in the outer area. While the flash outside can be cleaned, the flash in the area where the thread will be opened cannot be cleaned. This causes the broach tool to hit the welding flash and break during the threading process, resulting in both the inability to perform the threading process properly and equipment losses.

[0007] In the application numbered CN205423582U, the joining of a yoked part and a tube by friction welding method is discussed. However, the difficulties that will be experienced in threading and any solutions to these difficulties are not mentioned. The welding process was concerned with combining equal wall thicknesses.

[0008] In the application numbered CN103273284A, it is mentioned that the tolerance value and determination of the wall thickness of the tube and the yoked part in joining the sliding yoked part joined by friction welding using the friction welding method. However, the difficulties that will be experienced in threading and any solutions to these difficulties are not mentioned.

[0009] The application numbered GB1140271 A describes the joining of the yoked part and the tube using the friction welding method. However, the difficulties that will be experienced in threading and any solutions to these difficulties are not mentioned.

[0010] The application numbered US6367680B1 describes the joining of the yoked part and the tube using the friction welding method. However, the difficulties that will be experienced in threading and any solutions to these difficulties are not mentioned.

[0011] As explained above, joining the yoked part and the tube by friction welding is known in the state of the art. However, there is no solution to the problem of welding flash with high hardness values arising from the mentioned friction welding. In this case, there is no solution to the breakage of a threaded shaft called a broach used in the threading process due to the mentioned problems. In this case, equipment losses and financial losses constitute a serious disadvantage in the mentioned art, so a solution must be found.

[0012] Given the challenges outlined above, there is a pressing need for a novel sleeve yoke design to address the issues arising from welding flash in the threading process, particularly in sleeve yokes produced through friction welding. As a result, all abovementioned problems have made it necessary to make an improvement in the relevant technical field. OBJECT OF THE INVENTION

[0013] The present invention aims to eliminate the abovementioned problems and to make a development in the relevant technical field.

[0014] The object of the present invention is to ensure that the welding flash that will occur on the inside of the sliding yoked part and the tube is collected in a determined area when combined with friction welding.

[0015] The object of the present invention is to prevent the welding flash with high hardness value that will occur after friction welding from contacting the broach tool used in the threading process and to ensure that the broach tool performs the threading process in a safe channel.

[0016] The object of the invention is to ensure that the welding flash is collected in a defined area and that the broach tool is not damaged in the threading process by threading the broach tool in a safe channel.

[0017] The invention further aims to mitigate equipment failures caused by broach tool breakages, thereby reducing financial and time-related losses.BRIEF DESCRIPTION OF THE INVENTION

[0018] The present invention relates to a new sleeve yoke with a welding flash slot, designed to achieve the objectives outlined above. Details of the invention are provided in the following description. The invention includes a yoked part with a first and a second projection, a tube with a first and a second projection, and a slot designed to collect welding flashes generated during the friction welding of the yoked part and the tube. The yoked part has a face surface, and the tube has a face surface. This configuration addresses the challenges encountered in threading caused by welding flashes in sleeve yokes produced through friction welding. A preferred embodiment of the invention comprises a first part protrusion configured to have the first part protrusion diameter on the second axis.

[0019] A preferred embodiment of the invention comprises a second part protrusion configured to have the second part protrusion diameter on the second axis.

[0020] In a preferred embodiment of the invention, the said yoked part comprises a third part protrusion. A preferred embodiment of the invention comprises a third part protrusion configured to have a third part protrusion diameter on the second axis.

[0021] A preferred embodiment of the invention comprises a first tube protrusion configured to have the first tube protrusion diameter on the second axis.

[0022] A preferred embodiment of the invention comprises a first tube protrusion configured to have the first tube protrusion diameter on the second axis.

[0023] A preferred embodiment of the invention comprises a first part protrusion diameter and a first tube protrusion diameter having equal dimensions.

[0024] A preferred embodiment of the invention comprises a second tube protrusion diameter configured to be greater than or equal to the second part protrusion diameter.

[0025] A preferred embodiment of the invention comprises a third part protrusion diameter configured to have a larger dimension than the second tube protrusion diameter.

[0026] A preferred embodiment of the invention comprises a slot that allows welding flashes to enter into it, with the flash diameter between them on the second axis.

[0027] A preferred embodiment of the invention comprises a slot that allows welding flashes to enter into it, with the flash diameter between them on the second axis.

[0028] A preferred embodiment features a radiused form between the base and side surfaces of the slot, allowing welding flashes to enter without strain.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 shows the side sectional view of the yoked part and the tube that are not connected to each other.

[0031] Figure 2 shows the side sectional view of the dimensioned yoked part and the tube that are not connected to each other.

[0032] Figure 3 shows a side sectional view of a new sleeve yoke with a welding flash slot. No welding flash shown inside the slot. Figure 3. A shows the detail view of a new sleeve yoke with a welding flash slot. No welding flash shown inside the slot.

[0033] Figure 4 shows a side sectional view of a new sleeve yoke with a welding flash slot. There is a welding flash inside the slot.

[0034] Figure 5 shows an isometric sectional view of a new sleeve yoke with a welding flash slot. There is a welding flash inside the slot.

[0035] Figure 5. A shows the detail view of a new sleeve yoke with a welding flash slot.

[0036] DESCRIPTION OF THE REFERENCES IN FIGURES

[0037] A. A new sleeve yoke

[0038] 1. Yoked part

[0039] 11. First part protrusion

[0040] 12. Second part protrusion

[0041] 13. Third part protrusion

[0042] 14. Part face surface

[0043] P1. First part protrusion diameter

[0044] P2. Second part protrusion diameter

[0045] P3. Third part protrusion diameter

[0046] 2. tube

[0047] 21. First part protrusion

[0048] 22. Second part protrusion

[0049] 23. Face surface

[0050] B1. First part protrusion diameter

[0051] B2. Second part protrusion diameter

[0052] 3. Slot F. Welding flash

[0053] F1. Flash diameter

[0054] E1. First axis

[0055] E2. Second axis

[0056] DETAILED DESCRIPTION OF THE INVENTION

[0057] In this detailed description, the inventive new sleeve yoke (A) with welding flash is described by means of examples only for clarifying the subject matter such that no limiting effect is created.

[0058] The present invention relates to a new sleeve yoke that eliminates the difficulties encountered in the thread cutting process due to welding flash (F) that occurs in sleeve yokes (A) formed by friction welding.

[0059] A new sleeve yoke (A), representative views of which are given in the figures, comprises the following in its general structure;

[0060] • Yoked part (1 ) with first part protrusion (11 ) and second part protrusion (12),

[0061] • tube (2) with first tube protrusion (21 ) and second tube protrusion (22),

[0062] • Slot (3) into which the welding flashes (F) arising during the joining of the said tube (2) and the yoked part (1 ) by friction welding are filled,

[0063] • Part face surface (14) of the yoked part (1 ), face surface (23) of the tube (2) in order to ensure that the said yoked part (1 ) and the tube (2) are connected to each other by friction welding.

[0064] The invention relates to a new sleeve yoke (A) comprising a slot (3) into which the welding flashes (F) arising during the friction welding of the yoked part (1 ) and the tube (2) are filled, thereby preventing damage to the broach tool used in the threading process.

[0065] The invention is a new sleeve yoke (A) and comprises a yoked part (1 ) as seen in Figures 1 and 2. Said yoked part (1 ) comprises a first part protrusion (1 1 ) configured to have the first part protrusion diameter (P1 ) on the second axis (E2). Said yoked part (1 ) comprises a second part protrusion (12) configured to have the second part protrusion diameter (P2) on the second axis (E2). Said yoked part (1 ) comprises a third part protrusion (13) configured to have the third part protrusion diameter (P3) on the second axis (E2). Said yoked part (1 ) comprises part face surface (14). The oil cover is connected to said third part protrusion (13).

[0066] The invention is a new sleeve yoke (A) and comprises a tube (2) as seen in Figures 1 and 2. Said tube (2) comprises a first tube protrusion (21 ) configured to have a first tube protrusion diameter (B1 ) on the second axis (E2). Said tube (2) comprises a second tube protrusion (22) configured to have a second tube protrusion diameter (B2) on the second axis (E2). Said tube (2) comprises face surface (23).

[0067] Said yoked part (1 ) and the tube (2) are connected to each other on the first axis (E1 ) by friction welding. With this connection, a new sleeve yoke (A) comprising a slot (3) is formed, as seen in Figure 3. Said connection takes place in such a way that the part face surface (14) and the face surface (23) are in the same direction on the first axis (E1 ), as seen in Figure 3. A.

[0068] While the yoked part (1 ) and the tube (2) are connected to each other by friction welding process, welding flash (F) appears. The resulting welding flash (F) fills into the slot (3) as seen in Figures 4, 5 and 5A. Said slot (3) allows the welding flashes (F) to enter into it, with the flash diameter (F1 ) between them on the second axis (E2), as seen in Figure 4.

[0069] The first part protrusion diameter (P1 ) and the first tube protrusion diameter (B1 ) have equal dimensions as seen in Figure 2. Thus, as seen in Figures 3 and 3A, the part face surface (14) and the face surface (23) meet in the same direction on the first axis (E1 ). In this way, the bottom surface of the slot (3) is formed.

[0070] Said second tube protrusion diameter (B2) is configured to be greater than or equal to the second part protrusion diameter (P2), as seen in Figure 2. In this way, the side surfaces of the slot (3) are formed, as seen in Figure 3A. As seen in Figure 3A, there is a radiused form between the base surface and side surfaces of the slot (3). Thanks to the mentioned radius form, the welding flash (F) is ensured to enter the slot (3) without being subjected to strain.

[0071] The protrusion diameter (P3) of the third part, which connects the oil cover, is configured to be larger than the second tube protrusion diameter (B2), as seen in Figure 2. Considering that the second tube protrusion diameter (B2) is greater than or equal to the first part protrusion diameter (P1 ), the broach tool used in the thread cutting process is prevented from contacting the first part protrusion diameter (P1 ). In this way, the broach tool is ensured to carry out the thread cutting process without any problems. Said flash diameter (F1 ) is configured to be larger than the third part protrusion diameter (P3). In this way, it is ensured that the broach tool does not come into contact with the welding flashes (F) located in the slot (3) while performing the thread cutting process. In this way, the broach tool is ensured to carry out the thread cutting process without any problems. The protection scope of the invention is specified in the appended claims and cannot be limited to the description made for illustrative purposes in this detailed description. Likewise, it is clear that a person skilled in the art can present similar embodiments in the light of the above descriptions without departing from the main theme of the invention.

Claims

CLAIMS1. A new sleeve yoke (A) that eliminates the difficulties encountered in the thread cutting process due to welding flash (F) that occurs in sleeve yokes (A) formed by friction welding, characterized in that, it comprises the following;• Yoked part (1 ) with first part protrusion (1 1 ) and second part protrusion (12),• tube (2) with first tube protrusion (21 ) and second tube protrusion (22),• Slot (3) into which the welding flashes (F) arising during the joining of the said tube (2) and the yoked part (1 ) by friction welding are filled,• Part face surface (14) of the yoked part (1 ), face surface (23) of the tube (2) in order to ensure that the said yoked part (1 ) and the tube (2) are connected to each other by friction welding.

2. A new sleeve yoke (A) according to claim 1 , characterized in that; it comprises first part protrusion (1 1 ) configured to have the first part protrusion diameter (P1) on the second axis (E2).

3. A new sleeve yoke (A) according to claim 1 , characterized in that; it comprises second part protrusion (12) configured to have the second part protrusion diameter (P2) on the second axis (E2).

4. A new sleeve yoke (A) according to claim 1 , characterized in that; said yoked part (1 ) comprises a third part protrusion (13).

5. A new sleeve yoke (A) according to claim 4, characterized in that; it comprises third part protrusion (13) configured to have the third part protrusion diameter (P3) on the second axis (E2).

6. A new sleeve yoke (A) according to claim 1 , characterized in that; it comprises first tube protrusion (21 ) configured to have the first tube protrusion diameter (B1 ) on the second axis (E2).

7. A new sleeve yoke (A) according to claim 1 , characterized in that; it comprises second tube protrusion (22) configured to have the second tube protrusion diameter (B2) on the second axis (E2).

8. A new sleeve yoke (A) according to any of the preceding claims, characterized in that; it comprises a first part protrusion diameter (R1 ) and a first tube protrusion diameter (B1 ) having equal dimensions.

9. A new sleeve yoke (A) according to any of the preceding claims, characterized in that; it comprises a second tube protrusion diameter (B2) configured to be greater than or equal to the second part protrusion diameter (P2).10.A new sleeve yoke (A) according to any of the preceding claims, characterized in that; it comprises a third part protrusion diameter (P3) configured to be larger than the second tube protrusion diameter (B2).

11. A new sleeve yoke (A) according to claim 1 , characterized in that; it comprises a slot (3) in the second axis (E2) through which the welding flashes (F) can be inserted with the flash diameter (F1 ) between them.12.A new sleeve yoke (A) according to any of the preceding claims, characterized in that; it comprises a flash diameter (F1 ) configured to have a dimension greater than the third part protrusion diameter (P3).

13. A new sleeve yoke (A) according to claim 1 , characterized in that; it comprises a radiused form between the base surface and side surfaces of the slot (3) to ensure that the welding flash (F) enters the slot (3) without being subjected to strain.

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