Stirring head for friction welding of vehicle-mounted charger shell

Abstract

The utility model discloses a stirring head used for friction welding of a vehicle-mounted charger shell, and relates to the technical field of friction welding stirring heads, the stirring head comprises a clamping piece, one end of the clamping piece is fixedly connected with a first connecting piece, and one end of the first connecting piece far away from the clamping piece is fixedly connected with a fixing plate. According to the utility model, the four groups of limiting columns inserted into the first fixing part are used for limiting, so that the third connecting piece and the first fixing part synchronously rotate in the same direction, the fixing insertion plate is inserted into the first fixing part, and the two groups of fixing rings are fixed together through the second bolt, so that the fixing insertion plate is prevented from falling off from the interior of the first fixing part; the fixing ring is fixed to the outer surface of the first fixing part, the fixing ring and the first fixing part synchronously rotate in the same direction through limitation of the fixing insertion plate, the third fixing lug and the first fixing lug are fixed together through the first bolt, and the third connecting piece is fixed to the lower end of the first fixing part through the fixing sleeve and the fixing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of friction welding stirring heads, in particular to a stirring head used for friction welding of a vehicle-mounted charger housing. Background Art

[0002] Friction welding is a method that uses the heat generated by the mutual movement and friction between the end faces of the workpieces to make the ends reach a thermoplastic state, and then quickly forges them to complete the welding. No other welding consumables are required during the welding process, such as welding rods, welding wires, flux and shielding gas. The only consumption is the welding stirring head. The stirring head for friction stir welding is the key to welding technology. The design of the stirring head directly affects the generation of friction heat source and the flow of plastic metal, and determines whether the welding head can be used in a wider range.

[0003] Existing friction stirring heads are all integrated, so when replacing the stirring head, the entire stirring head needs to be replaced. Moreover, when the stirring head rotates and rubs at high speed, a large amount of heat will be generated, which affects the service life of the stirring head. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a stirring head used for friction welding of a vehicle charger housing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a stirring head used for friction welding of a vehicle charger housing, comprising a clamping member, one end of the clamping member is fixedly connected to a first connecting member, the end of the first connecting member away from the clamping member is fixedly connected to a fixing plate, a shoulder is provided on the side of the fixing plate away from the clamping member, the end of the shoulder away from the clamping member is fixedly connected to a second connecting member, the end of the second connecting member away from the clamping member is fixedly connected to a first fixing portion, the end of the first fixing portion away from the clamping member is fixedly connected to a third connecting member, and the end of the third connecting member close to the first fixing portion is fixedly connected to four groups of limiting columns, the limiting columns are all slidably connected to the inside of the first fixing portion, the end of the third connecting member away from the first fixing portion is fixedly connected to the second fixing portion, the end of the second fixing portion away from the clamping member is fixedly connected to a fourth connecting member, the end of the fourth connecting member away from the clamping member is fixedly connected to a fixing column, and the end of the fixing column away from the clamping member is fixedly connected to a stirring needle, four groups of air inlet slots are evenly arranged inside the first fixing portion, the third connecting member and the second fixing portion, and the first fixing portion is fixedly connected to the second fixing portion. The third connecting member and the second fixing member are both provided with interconnected air outlet grooves, the air inlet groove and the air outlet groove both pass through the second connecting member and the shaft shoulder, the air inlet groove and the middle part of the shaft shoulder are connected, a connecting pipe is fixedly connected to the middle part of the lower surface of the fixing plate, an air outlet groove is provided inside the first connecting member and the fixing plate, and the four sides of the air outlet groove are connected to the outside world through air outlet holes, the air inlet groove and the air outlet groove are both connected inside the lower end of the second fixing member, a fixing sleeve is slidably connected to the outer surface of the third connecting member, the first fixing ear is fixedly connected to both sides of the fixing sleeve, and the third connecting member is provided with a fixing sleeve. Two groups of fixing rings are slidably connected to the outer surface of a fixing part, two groups of fixing plug plates are evenly fixedly connected to the inner side of the fixing ring, and the fixing plug plates are slidably connected to the inside of the first fixing part, and second fixing ears are fixedly connected to both ends of the fixing ring, and the middle parts of the two groups of second fixing ears at the same end are threadedly connected to the second bolt, and one end of the second bolt is threadedly connected to the nut, and the middle parts of the outer surfaces of the two groups of second fixing ears are fixedly connected to the third fixing ears, and the middle parts of the third fixing ears are threadedly connected to the first bolt, and the lower ends of the first bolts are threadedly connected to the middle of the first fixing ears.

[0006] As a further description of the above technical solution:

[0007] Four groups of latching teeth are fixedly connected to the lower surface of the fixing plate. The latching teeth are slidably connected to the inside of the shaft shoulder, and the latching teeth are latched on the inner wall of the shaft shoulder.

[0008] As a further description of the above technical solution:

[0009] Four groups of air inlet pipes are evenly and fixedly connected to the outer surface of the shaft shoulder, and the air inlet pipes are communicated with the shaft shoulder.

[0010] As a further description of the above technical solution:

[0011] A connecting pipe is fixedly connected to the lower surface of the fixing plate, and two ends of the connecting pipe are respectively connected to the air outlet slot and the gas outlet slot.

[0012] As a further description of the above technical solution:

[0013] The four points of the clamping member are all provided with limiting grooves, and the middle part of the clamping member is provided with a limiting connection groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the third connecting member and the first fixing part are restricted by four groups of limit columns inserted into the first fixing part so that the third connecting member and the first fixing part rotate synchronously in the same direction, a fixing sleeve is provided on the outer surface of the third connecting member, a fixing ring is provided on the outer surface of the first fixing part, a fixing plug plate is inserted into the first fixing part, and the two groups of fixing rings are fixed together by a second bolt to prevent the fixing plug plate from falling off from the first fixing part, thereby fixing the fixing ring on the outer surface of the first fixing part, and the fixing ring and the first fixing part are restricted by the fixing plug plate so that the fixing ring and the first fixing part rotate synchronously in the same direction, the third fixing ear and the first fixing ear are fixed together by the first bolt, and the third connecting member is fixed to the lower end of the first fixing part by the fixing sleeve and the fixing ring, and the first bolt is removed at the same time, so that the third connecting member can be removed from the lower end of the first fixing part, thereby facilitating the replacement of the second fixing part, the fourth connecting member, the fixing column and the stirring needle.

[0016] 2. In the utility model, first, when the clamping part rotates at a high speed, a large amount of air will enter the inside of the shaft shoulder from the air inlet pipe, and then enter the inside of the four groups of air inlet slots. The air flows downward along the air inlet slots, enters the inside of the air outlet slots at the lower end of the second fixed part, and then flows upward along the inside of the air outlet slots, enters the air outlet slots through the connecting pipe, and then flows to the outside from the air outlet holes. When the air with low outside temperature enters the lower end of the air inlet slots, it will absorb the heat conducted to the second fixed part, and then the heat flows to the outside from the air outlet slots, the connecting pipe air outlet slots and the air outlet holes along with the air, thereby reducing the temperature of the second fixed part, avoiding the second fixed part, the third connecting part, the first fixed part, the second connecting part, the shaft shoulder, the first connecting part and the clamping part from working under high temperature for a long time, thereby increasing the practical life of the welding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

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

[0019] Figure 3 It is a cross-sectional three-dimensional structural diagram of the first fixing part and the second fixing part of the utility model;

[0020] Figure 4It is a cross-sectional three-dimensional structural diagram of the clamping member of the utility model.

[0021] Legend:

[0022] 1. Clamping member; 2. First connecting member; 3. Shoulder; 4. Second connecting member; 5. First fixing portion; 6. Third connecting member; 7. Second fixing portion; 8. Fourth connecting member; 9. Fixing column; 10. Stirring needle; 11. Air inlet slot; 12. Air outlet slot; 13. Air inlet pipe; 14. Fixing plate; 15. Gear; 16. Connecting pipe; 17. Limiting connecting slot; 18. Fixing sleeve; 19. First fixing ear; 20. First bolt; 21. Fixing ring; 22. Second fixing ear; 23. Second bolt; 24. Third fixing ear; 25. Fixing plug plate; 26. Limiting column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Reference Figure 1-4, the utility model provides an embodiment: a stirring head for friction welding of a vehicle charger housing, comprising a clamping member 1, one end of the clamping member 1 is fixedly connected to a first connecting member 2, the end of the first connecting member 2 away from the clamping member 1 is fixedly connected to a fixing plate 14, a shoulder 3 is provided on the side of the fixing plate 14 away from the clamping member 1, the end of the shoulder 3 away from the clamping member 1 is fixedly connected to a second connecting member 4, the end of the second connecting member 4 away from the clamping member 1 is fixedly connected to a first fixing portion 5, the end of the first fixing portion 5 away from the clamping member 1 is fixedly connected to a third connecting member 6, the end of the third connecting member 6 close to the first fixing portion 5 is fixedly connected to four groups of limiting columns 26, the limiting columns 26 are all slidably connected to the inside of the first fixing portion 5, the end of the third connecting member 6 away from the first fixing portion 5 is fixedly connected to the second fixing portion 7, the second fixing portion 7 is fixedly connected with a fourth connecting member 8 at one end away from the clamping member 1, a fixing column 9 is fixedly connected with one end of the fourth connecting member 8 away from the clamping member 1, a stirring needle 10 is fixedly connected with one end of the fixing column 9 away from the clamping member 1, four groups of air inlet grooves 11 are evenly arranged inside the first fixing part 5, the third connecting member 6 and the second fixing part 7, and connected air outlet grooves 12 are arranged inside the first fixing part 5, the third connecting member 6 and the second fixing part 7, and the air inlet grooves 11 and the air outlet grooves 12 pass through the second connecting member 4 and the shaft shoulder 3, and the middle part of the air inlet groove 11 is connected to the shaft shoulder 3, and a connecting pipe 16 is fixedly connected to the middle part of the lower surface of the fixing plate 14, and an air outlet groove is arranged inside the first connecting member 2 and the fixing plate 14, and the four sides of the air outlet groove are connected to the outside through the air outlet holes, and the air inlet groove 11 and the air outlet groove 12 are connected inside the lower end of the second fixing part 7;

[0026] A fixing sleeve 18 is slidably connected to the outer surface of the third connecting member 6, and first fixing ears 19 are fixedly connected to both sides of the fixing sleeve 18, two groups of fixing rings 21 are slidably connected to the outer surface of the first fixing part 5, and two groups of fixing plug plates 25 are evenly fixedly connected to the inner side of the fixing ring 21, and the fixing plug plates 25 are slidably connected to the inside of the first fixing part 5, and second fixing ears 22 are fixedly connected to both ends of the fixing ring 21, and the middle parts of the two groups of second fixing ears 22 at the same end are threadedly connected to the second bolt 23, and one end of the second bolt 23 is threadedly connected to the nut, and the middle parts of the outer surfaces of the two groups of second fixing ears 22 are fixedly connected to the third fixing ears 24, and the middle parts of the third fixing ears 24 are threadedly connected to the first bolt 20, and the lower ends of the first bolts 20 are threadedly connected to the middle of the first fixing ears 19.

[0027] Limiting grooves are provided at the four points of the clamping member 1, a limiting connecting groove 17 is provided in the middle of the clamping member 1, a connecting pipe 16 is fixedly connected to the lower surface of the fixing plate 14, and the two ends of the connecting pipe 16 are respectively connected to the air outlet groove 12 and the air outlet groove, four groups of air inlet pipes 13 are evenly fixedly connected to the outer surface of the shoulder 3, and the air inlet pipes 13 are connected to the shoulder 3, and four groups of latch teeth 15 are fixedly connected to the lower surface of the fixing plate 14, the latch teeth 15 are slidably connected to the inside of the shoulder 3, and the latch teeth 15 are latched on the inner wall of the shoulder 3.

[0028] Working principle: When in use, take out the new third connecting piece 6, the second fixing part 7, the fourth connecting piece 8, the fixing column 9 and the first bolt 20, insert the four groups of limiting columns 26 at the upper end of the third connecting piece 6 into the first fixing part 5, the limiting columns 26 can limit the third connecting piece 6, so that the third connecting piece 6 and the first fixing part 5 rotate synchronously in the same direction, insert the fixing plug plate 25 into the first fixing part 5, fix the two groups of second fixing ears 22 together through the second bolt 23 and the nut, thereby fixing the two groups of fixing rings 21 together to prevent the fixing plug plate 25 from falling off from the first fixing part 5, and also fix the fixing ring 21 on the outer surface of the first fixing part 5, through the restriction of the fixing plug plate 25, the fixing ring 21 and the first fixing part 5 rotate synchronously in the same direction, fix the third fixing ear 24 and the first fixing ear 19 together through the first bolt 20, fix the third connecting piece 6 to the lower end of the first fixing part 5 through the fixing sleeve 18 and the fixing ring 21, when replacing the third connecting piece 6, first remove the first bolt 20, and the third connecting piece 6 can be removed from the first fixing part 5. The lower end of the first fixing part 5 is removed, so as to facilitate the replacement of the second fixing part 7, the fourth connecting part 8, the fixing column 9 and the stirring needle 10. The clamping part 1 is installed on the welding device. The welding device drives the stirring head to rotate at a high speed. When the clamping part 1 rotates at a high speed, a large amount of air will enter the inside of the shaft shoulder 3 from the air inlet pipe 13, and enter the inside of the four sets of air inlet slots 11. The air flows downward along the air inlet slots 11, enters the inside of the air outlet slots 12 at the lower end of the second fixing part 7, and then flows upward along the inside of the air outlet slots 12, passes through the connecting pipe 16, and then flows upward along the inside of the air outlet slots 12. It enters the air outlet groove and then flows to the outside from the air outlet hole. When the air with low outside temperature enters the lower end of the air inlet groove 11, it will absorb the heat conducted to the second fixed part 7. Then the heat flows to the outside from the air outlet groove 12, the connecting pipe 16 air outlet groove and the air outlet hole along with the air, thereby reducing the temperature of the second fixed part 7 and preventing the second fixed part 7, the third connecting part 6, the first fixed part 5, the second connecting part 4, the shoulder 3, the first connecting part 2 and the clamping part 1 from working under high temperature for a long time, thereby increasing the practical life of the welding head.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stirring head for friction welding of a vehicle charger housing, comprising a clamping member (1), characterized in that: One end of the clamping member (1) is fixedly connected to a first connecting member (2); one end of the first connecting member (2) away from the clamping member (1) is fixedly connected to a fixing plate (14); a side of the fixing plate (14) away from the clamping member (1) is provided with a shoulder (3); one end of the shoulder (3) away from the clamping member (1) is fixedly connected to a second connecting member (4); one end of the second connecting member (4) away from the clamping member (1) is fixedly connected to a first fixing portion (5); one end of the first fixing portion (5) away from the clamping member (1) is fixedly connected to a third connecting member (6); one end of the third connecting member (6) close to the first fixing portion (5) is fixedly connected to four groups of limiting columns (26); the limiting columns (26) are all slidable. The third connecting member (6) is movably connected to the inside of the first fixing part (5); the end of the third connecting member (6) away from the first fixing part (5) is fixedly connected to the second fixing part (7); the end of the second fixing member (7) away from the clamping member (1) is fixedly connected to the fourth connecting member (8); the end of the fourth connecting member (8) away from the clamping member (1) is fixedly connected to a fixing column (9); the end of the fixing column (9) away from the clamping member (1) is fixedly connected to a stirring needle (10); four groups of air inlet grooves (11) are evenly arranged inside the first fixing part (5), the third connecting member (6) and the second fixing part (7); the first fixing part (5), the third connecting member (6) and the second fixing part (7) are all provided with interconnected air outlet grooves (12), the air inlet groove (11) and the air outlet groove (12) both pass through the second connecting member (4) and the shaft shoulder (3), the middle parts of the air inlet groove (11) and the shaft shoulder (3) are connected, the middle part of the lower surface of the fixing plate (14) is fixedly connected with a connecting pipe (16), the first connecting member (2) and the fixing plate (14) are provided with air outlet grooves inside, and the four sides of the air outlet grooves are connected to the outside through air outlet holes, the air inlet groove (11) and the air outlet groove (12) are both connected inside the lower end of the second fixing part (7), the outer surface of the third connecting member (6) is slidably connected with a fixing sleeve (18), both sides of the fixing sleeve (18) are fixedly connected with a first fixing ear (19), the outer surface of the first fixing part (5) is slidably connected Two groups of fixing rings (21) are connected, and two groups of fixing plug plates (25) are evenly fixedly connected to the inner side surfaces of the fixing rings (21), and the fixing plug plates (25) are slidably connected to the inside of the first fixing part (5). The two ends of the fixing ring (21) are fixedly connected to second fixing ears (22), and the middle parts of the two groups of second fixing ears (22) at the same end are threadedly connected to second bolts (23), and one end of the second bolt (23) is threadedly connected to a nut. The middle parts of the outer surfaces of the two groups of second fixing ears (22) are fixedly connected to third fixing ears (24), and the middle parts of the third fixing ears (24) are threadedly connected to first bolts (20), and the lower ends of the first bolts (20) are threadedly connected to the middle part of the first fixing ears (19).

2. The stirring head used for friction welding of a vehicle charger housing according to claim 1, characterized in that: Four groups of latching teeth (15) are fixedly connected to the lower surface of the fixing plate (14), and the latching teeth (15) are slidably connected to the inside of the shaft shoulder (3), and the latching teeth (15) are latched on the inner wall of the shaft shoulder (3).

3. The stirring head used for friction welding of the vehicle charger housing according to claim 2, characterized in that: Four groups of air inlet pipes (13) are evenly and fixedly connected to the outer surface of the shaft shoulder (3), and the air inlet pipes (13) and the shaft shoulder (3) are in communication.

4. The stirring head used for friction welding of the vehicle charger housing according to claim 3 is characterized in that: A connecting pipe (16) is fixedly connected to the lower surface of the fixing plate (14), and two ends of the connecting pipe (16) are respectively connected to the air outlet slot (12) and the gas outlet slot.

5. The stirring head used for friction welding of a vehicle charger housing according to claim 1, characterized in that: The four points of the clamping member (1) are all provided with limiting grooves, and the middle part of the clamping member (1) is provided with a limiting connection groove (17).

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