Air slip ring mechanism of friction stir welding equipment

Abstract

The utility model relates to the field of air slip rings, in particular to an air slip ring mechanism of friction stir welding equipment, which comprises an inner ring, an outer ring and two sealing rings, two first mounting grooves are arranged on the inner wall of the outer ring at intervals, and the sealing rings are slidably arranged in the first mounting grooves. The inner ring is sleeved with the sealing ring, the sliding direction of the sealing ring is the same as the axial direction of the outer ring, the inner ring is sleeved with the outer ring, a second installation groove is formed in the outer wall of the inner ring, the sealing ring makes contact with the second installation groove, and an air groove is further formed in the outer wall face of the inner ring. According to the utility model, through the arrangement of the sealing ring, the compensation of the position of the sealing ring can be realized through the power of the first spring under the condition of relatively large vibration, so that relatively good sealing performance can still be kept; in addition, due to the arrangement of the contact blocks, the compensation capacity for dislocation between the inner ring and the sealing ring is improved, and the sealing performance is further improved.

Description

Technical Field

[0001] The utility model relates to the field of air slip rings, in particular to an air slip ring mechanism of a friction stir welding device. Background Art

[0002] Gas slip ring, also known as gas rotary joint or gas transmission rotary joint, is a rotary connection device specially used to transmit gas signals. It usually consists of a shell, a rotating part and a gas channel. As a key hub for transmitting gas signals, it plays an indispensable role in modern industry. Its unique structure and application make it indispensable in various fields.

[0003] The main shaft of the friction stir welding machine is also equipped with an air slip ring. Due to the large vibration of the friction stir welding machine during operation, the sealing ring of the air slip ring is likely to fail, causing gas leakage in the gas channel, affecting the transmission of the gas signal. Therefore, it is necessary to improve such a structure to overcome the above defects. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an air slip ring mechanism for a stir friction welding device. The utility model is achieved through the following technical solutions:

[0005] An air slip ring mechanism of a friction stir welding device comprises an inner ring, an outer ring and two sealing rings, two first mounting grooves are arranged on the inner wall of the outer ring at intervals, the sealing ring is arranged to slide in the first mounting grooves, and the sliding direction of the sealing ring is the same as the axial direction of the outer ring, the outer ring is sleeved on the inner ring, and a second mounting groove is arranged on the outer wall of the inner ring, the sealing ring is in contact with the second mounting groove, and an air groove is also arranged on the outer wall surface of the inner ring.

[0006] In the above technical solution: the outer ring is used to be fixed to the frame, and the inner ring is used to be fixed to the rotating main shaft; the sealing ring is used to achieve sealing between the inner ring and the outer ring to prevent gas leakage; the first mounting groove and the second mounting groove are used to set the sealing ring, and when the inner ring rotates, the relative position of the sealing ring and the outer ring does not change; the gas groove is used to ensure that the gas channel remains connected when the inner ring rotates to any angle.

[0007] The utility model is further configured as follows: an air outlet is also provided on the inner ring, and the air outlet is communicated with the air groove.

[0008] In the above technical solution: the gas outlet is used for allowing the gas entering from the gas tank to flow through.

[0009] The utility model is further configured as follows: an air inlet and a connecting port are also provided on the outer ring, the air inlet is provided on the outer wall surface of the outer ring, the connecting port is provided on the inner wall surface of the outer ring, and the position of the connecting port corresponds to the position of the air groove.

[0010] In the above technical solution: the air inlet is used for gas to enter, and the connecting port is used for gas to reach the air tank.

[0011] The utility model is further configured as follows: a plurality of slide grooves are further provided in the first installation groove, a plurality of slide rods are provided on the sealing ring, the slide rods are slidably connected to the slide grooves, a first spring is further sleeved on the slide rods, one end of the first spring is in contact with the first installation groove, and the other end is in contact with the sealing ring.

[0012] In the above technical solution: the slide groove is used for the slide rod to slide, so that the sealing ring can maintain contact with the first installation groove by moving up and down, thereby achieving sealing; the first spring is used to provide power so that the sealing ring can move up and down.

[0013] The utility model is further configured as follows: a mounting hole is further provided in the second mounting groove, a contact block is further slidably provided in the second mounting groove, a sliding rod is fixedly connected to the contact block, the sliding rod is slidably connected to the mounting hole, and the contact block maintains contact with the sealing ring.

[0014] In the above technical solution: the mounting hole is used to set the sliding rod; the contact block is kept in contact with the sealing ring to ensure the sealing performance.

[0015] The utility model is further configured as follows: a second spring is sleeved on the sliding rod, one end of the second spring contacts the contact block, and the other end contacts the second mounting groove.

[0016] In the above technical solution: the second spring is used to provide power so that the contact block can maintain contact with the sealing ring.

[0017] The utility model is further configured as follows: a sealing rubber pad is further arranged in the first installation groove, and the sealing rubber pad is in contact with the sealing ring.

[0018] In the above technical solution: the provision of a sealing rubber pad is used to further improve the sealing performance.

[0019] The utility model discloses an air slip ring mechanism for a stir friction welding device. Compared with the prior art:

[0020] 1. The utility model sets a sealing ring so that in the case of large vibration, the position of the sealing ring can be compensated by the power of the first spring, thereby maintaining good sealing performance;

[0021] 2. The utility model also improves the ability to compensate for the misalignment between the inner ring and the sealing ring by setting the contact block, thereby further improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the utility model;

[0023] Figure 2 It is a cross-sectional view of the utility model;

[0024] Figure 3 It is a partial enlarged view of the utility model;

[0025] Figure 4 It is a partial enlarged view of another position of the utility model.

[0026] The corresponding component names represented by the numbers and letters in the figure are: 10-inner ring; 101-second mounting groove; 101a-mounting hole; 102-air groove; 103-air outlet; 20-outer ring; 201-first mounting groove; 201a-slide groove; 201b-sealing rubber pad; 202-air inlet; 203-connecting port; 30-sealing ring; 301-slide rod; 40-first spring; 50-contact block; 501-slide rod; 60-second spring. DETAILED DESCRIPTION

[0027] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0028] like Figure 1-4 As shown, the utility model proposes an air slip ring mechanism of a stir friction welding device, comprising an inner ring 10, an outer ring 20 and two sealing rings 30, two first mounting grooves 201 are arranged at intervals on the inner wall of the outer ring 20, the sealing ring 30 is arranged to slide in the first mounting groove 201, and the sliding direction of the sealing ring 30 is the same as the axial direction of the outer ring 20, the outer ring 20 is sleeved on the inner ring 10, and a second mounting groove 101 is arranged on the outer wall of the inner ring 10, the sealing ring 30 is in contact with the second mounting groove 101, and an air groove 102 is also arranged on the outer wall surface of the inner ring 10. Among them, an annular groove is also arranged on the outer wall of the inner ring 10, and a sealing ring is arranged in the annular groove.

[0029] like Figure 1-4As shown, the utility model proposes an air slip ring mechanism of a stir friction welding device, wherein the inner ring 10 is further provided with an air outlet 103, and the air outlet 103 is communicated with the air groove 102. Preferably, the number of the air outlets 103 is two to avoid the situation where one air outlet 103 is blocked.

[0030] like Figure 1-4 As shown, the utility model proposes an air slip ring mechanism of a stir friction welding device, the outer ring 20 is also provided with an air inlet 202 and a connecting port 203, the air inlet 202 is provided on the outer wall surface of the outer ring 20, the connecting port 203 is provided on the inner wall surface of the outer ring 20, and the position of the connecting port 203 corresponds to the position of the air groove 102. The number of the air inlet 202 is also two.

[0031] like Figure 1-4 As shown, the utility model proposes a gas slip ring mechanism of a friction stir welding device, wherein a plurality of slide grooves 201a are further provided in the first installation groove 201, a plurality of slide bars 301 are provided on the sealing ring 30, the slide bars 301 are slidably connected with the slide grooves 201a, a first spring 40 is sleeved on the slide bar 301, one end of the first spring 40 contacts the first installation groove 201, and the other end contacts the sealing ring 30. The number of the slide grooves 201a is at least three; the slide bar 301 and the slide groove 201a are transitionally matched.

[0032] like Figure 1-4 As shown, the utility model proposes a gas slip ring mechanism of a friction stir welding device, wherein the second mounting groove 101 is further provided with a mounting hole 101a, and a contact block 50 is further slidably provided in the second mounting groove 101, and a sliding rod 501 is fixedly connected to the contact block 50, and the sliding rod 501 is slidably connected to the mounting hole 101a, and the contact block 50 is in contact with the sealing ring 30. The number of the mounting holes 101a is at least three, and the sliding rod 501 and the mounting hole 101a are transitionally matched.

[0033] like Figure 1-4 As shown, the utility model proposes an air slip ring mechanism of a friction stir welding device, wherein the sliding rod 501 is sleeved with a second spring 60 , one end of the second spring 60 contacts the contact block 50 , and the other end contacts the second mounting groove 101 .

[0034] like Figure 1-4As shown, the present invention provides an air slip ring mechanism for a friction stir welding device, wherein a sealing rubber pad 201b is further provided in the first mounting groove 201, and the sealing rubber pad 201b is in contact with the sealing ring 30. A second sealing rubber pad may be provided on the side of the contact block 50 in contact with the sealing ring 30.

[0035] The working principle of the utility model is:

[0036] a) After connecting the air inlet and outlet to the pipeline;

[0037] b) When the main shaft connected to the inner ring rotates;

[0038] c) The sealing ring and the inner ring rotate relative to each other;

[0039] d) The first spring pushes the sealing ring so that the sealing ring maintains contact with the sealing rubber gasket;

[0040] e) The sliding rod and the contact block rotate together with the inner ring;

[0041] f) The second spring pushes the contact block so that the contact block maintains contact with the sealing ring;

[0042] g) The air path remains unobstructed and leak-free.

[0043] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. An air slip ring mechanism for a friction stir welding device, characterized in that: The invention comprises an inner ring (10), an outer ring (20) and two sealing rings (30); two first mounting grooves (201) are arranged at intervals on the inner wall of the outer ring (20); the sealing ring (30) is arranged to slide in the first mounting grooves (201), and the sliding direction of the sealing ring (30) is the same as the axial direction of the outer ring (20); the outer ring (20) is sleeved on the inner ring (10), and a second mounting groove (101) is arranged on the outer wall of the inner ring (10); the sealing ring (30) is in contact with the second mounting groove (101); and an air groove (102) is also arranged on the outer wall surface of the inner ring (10).

2. The air slip ring mechanism of the friction stir welding equipment according to claim 1, characterized in that: The inner ring (10) is also provided with an air outlet (103), and the air outlet (103) is communicated with the air groove (102).

3. The air slip ring mechanism of the friction stir welding equipment according to claim 2, characterized in that: The outer ring (20) is also provided with an air inlet (202) and a connecting port (203); the air inlet (202) is provided on the outer wall surface of the outer ring (20); the connecting port (203) is provided on the inner wall surface of the outer ring (20); and the position of the connecting port (203) corresponds to the position of the air groove (102).

4. The air slip ring mechanism of the friction stir welding equipment according to claim 3, characterized in that: A plurality of slide grooves (201a) are further provided in the first installation groove (201), a plurality of slide rods (301) are provided on the sealing ring (30), the slide rods (301) are slidably connected to the slide grooves (201a), a first spring (40) is also sleeved on the slide rod (301), one end of the first spring (40) is in contact with the first installation groove (201), and the other end is in contact with the sealing ring (30).

5. The air slip ring mechanism of the friction stir welding equipment according to claim 4, characterized in that: A mounting hole (101a) is also provided in the second mounting groove (101), and a contact block (50) is also slidably provided in the second mounting groove (101). A sliding rod (501) is fixedly connected to the contact block (50), and the sliding rod (501) is slidably connected to the mounting hole (101a), and the contact block (50) maintains contact with the sealing ring (30).

6. The air slip ring mechanism of the friction stir welding equipment according to claim 5, characterized in that: The sliding rod (501) is sleeved with a second spring (60), one end of the second spring (60) is in contact with the contact block (50), and the other end is in contact with the second mounting groove (101).

7. The air slip ring mechanism of the friction stir welding equipment according to claim 4 or 6, characterized in that: A sealing rubber pad (201b) is also provided in the first installation groove (201), and the sealing rubber pad (201b) is in contact with the sealing ring (30).

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