Gantry type friction stir welding machine tool capable of swinging head

Abstract

The invention relates to the technical field of friction stir welding equipment, in particular to a swing head gantry type friction stir welding machine tool which comprises a machine tool body base, a frame, a machining table, a front plate, a back plate, a bearing seat, a first transmission system, a second transmission system, a third transmission system and a rotating mechanism. The first transmission system comprises a seat rail, a first motor, a first threaded rod, a first sliding rail and a first lug plate, the second transmission system comprises a second motor, a top frame, a second threaded rod, a second sliding rail, a back plate and a second lug plate, and the third transmission system comprises a third motor, a third threaded rod, a third sliding rail, a front plate and a third lug plate. The angle-adjustable stirring machine head has the beneficial effects that the angle-adjustable function of the stirring machine head is successfully achieved, so that the flexibility of the welding direction is greatly improved, and single equipment can meet various different welding requirements of a vertical plane, a horizontal plane and the like.

Description

Technical Field

[0001] The invention relates to the field of friction stir welding equipment, in particular to a gantry type friction stir welding machine tool with a swingable head. Background Art

[0002] Friction stir welding technology uses a high-speed rotating stirring tool to generate a large amount of friction heat, which causes the local temperature of the welding area of ​​the workpiece to be welded to rise sharply, thereby causing the material in this area to undergo plastic deformation. Under the continuous stirring of the stirring needle and the applied pressure, the plastically deformed material flows, causing the metal atoms to diffuse and tightly combine with each other. Subsequently, as the material cools and solidifies, a uniform solid weld is formed.

[0003] However, the existing friction welding equipment has a limitation, that is, it is mainly designed for welding operations on the horizontal surface of the workbench. When encountering a workpiece whose welding surface forms a certain inclination angle with the surface of the workbench, the welding operation becomes quite complicated and difficult.

[0004] Therefore, the present invention proposes a gantry-type friction stir welding machine with a swingable head to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a gantry-type friction stir welding machine with a swingable head to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: a gantry-type friction stir welding machine with a swingable head, the gantry-type friction stir welding machine with a swingable head comprising: a bed base, a frame, a processing table, a front plate, a back plate, a receiving seat, a first transmission system, a second transmission system, a third transmission system and a rotating mechanism, wherein a clamping mechanism is provided on the front plate and the back plate; The first transmission system includes a seat rail, a first motor, a first threaded rod, a first slide rail and a first ear plate, the second transmission system includes a second motor, a top frame, a second threaded rod, a second slide rail, a back plate and a second ear plate, the third transmission system includes a third motor, a third threaded rod, a third slide rail, a front plate and a third ear plate, the rotating mechanism includes a connecting plate, a gear ring, a tapered roller bearing, a fourth motor and a driving gear, and the clamping mechanism includes a clamping cylinder, a clamping plate and a clamping ring.

[0007] Preferably, the bed base and the frame are both made of casting material and are rigidly connected. Seat rails are fixed on both sides of the upper surface of the bed base. A groove is provided on the surface of the seat rail, and a number of equidistant mounting holes are provided in the groove. The first slide rail is installed in the groove. The first slide bar is fixed on both sides of the lower surface of the processing table. The first slide bar and the first slide rail are slidably connected. A diagonal support plate is provided between the first slide bar and the processing table, and one end of the diagonal support plate is fixedly connected to the first slide bar, and the other end of the diagonal support plate is fixedly connected to the processing table.

[0008] Preferably, the first motor is sleeved in a frame, the frame is fixed on the bed base, the output end of the first motor is fixedly connected to the first threaded rod, the first threaded rod is located on the central axis of the bed base, the end face of the first threaded rod is rotatably connected to a support plate, the bottom of the support plate is fixed to the bed base by bolts, the first threaded rod is located directly below the processing table, a first ear plate is fixed to the lower surface of the processing table, and the first ear plate and the first threaded rod are threadedly connected.

[0009] Preferably, a top frame is fixed on the top of the frame, an outer frame is fixed to the surface of the top frame by bolts, a second motor is bolted to one side of the outer frame, an output end of the second motor is fixedly connected to the second threaded rod, an end of the second threaded rod is rotatably connected to the outer frame, the second threaded rod is located on the inner side of the outer frame, a groove is provided on the side and the surface of the outer frame, a plurality of equally spaced mounting holes are provided in the groove, a second slide rail is fixed in the groove by bolts, a second slide bar is provided at the position of the two groups of second slide rails on the surface of the back plate, the second slide bar and the second slide rail are slidably connected, a second side ear is fixed to the surface of the back plate, and the second side ear and the second threaded rod are threadedly connected.

[0010] Preferably, the third motor is fixed at one end of the front plate by bolts, and the output end of the third motor is fixedly connected to the third threaded rod, the third threaded rod is located on the inner side of the front plate, third slide rails are fixed to both sides of the surface of the front plate by bolts, the socket is arranged directly in front of the front plate, third slide bars are arranged on both sides of the surface of the socket, the third slide bars and the third slide rails are slidably connected, a third side ear is fixed to the surface of the socket, the third side ear is located between the two groups of third slide bars, the third side ear extends into the front plate, the third side ear and the third threaded rod are threadedly connected, and a mixer head is arranged on the surface of the socket.

[0011] Preferably, a connecting plate is fixed on the back of the front plate, the connecting plate is in the shape of a disc, a gear ring is fixed on the periphery of the connecting plate, a clamping cylinder is provided on the surface of the connecting plate, the clamping cylinder is located next to the front plate, two groups of clamping cylinders are provided, the two groups of clamping cylinders are symmetrically distributed about the central axis of the front plate, the output end of the clamping cylinder penetrates the connecting plate, and a clamping plate is fixed to the output end of the clamping cylinder.

[0012] Preferably, a through hole is provided on the surface of the back plate, the through hole is close to the top of the back plate, the fourth motor is fixed to the back plate by bolts, the fourth motor is located at the through hole, the output end of the fourth motor extends into and passes through the through hole, a driving gear is fixed to the output end of the fourth motor, and the driving gear and the ring gear are meshingly connected.

[0013] Preferably, two sets of bearing rings are rotatably connected to the output end of the fourth motor, and the two sets of bearing rings are fixed inside the through hole.

[0014] Preferably, a tapered roller bearing is provided at the center of the surface of the back plate, and the back plate and the connecting plate rotate relatively around the center tapered roller bearing.

[0015] Preferably, a retaining ring is fixed on the surface of the back plate, the retaining ring is located on the outside of the tapered roller bearing, and the retaining plate and the retaining ring are arranged opposite to each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The invention proposes a gantry-type friction stir welding machine with a swingable head, which realizes the function of adjusting the angle of the stirrer head, thereby greatly improving the flexibility of the welding direction, so that a single device can meet a variety of different welding requirements such as vertical and horizontal surfaces, thereby avoiding the problem that the welding operation of the existing friction welding equipment becomes quite complicated and difficult when encountering a workpiece with a certain inclination angle between the welding surface and the worktable surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A magnified view of the structure at center; Figure 3 This is a schematic diagram of the structure of the first ear plate of the present invention; Figure 4 This is a schematic diagram of the outer frame structure of the present invention; Figure 5 This is a schematic diagram of the backplane structure of the present invention; Figure 6 It is a schematic diagram of the top frame structure of the present invention; Figure 7 This is a schematic diagram of the gear ring structure of the present invention; Figure 8 This is a schematic diagram of the second side ear structure of the present invention; Fig. 9 This is a schematic diagram of the ring structure of the present invention; Fig.10 It is a schematic diagram of the structure of the abutting piece of the present invention.

[0018] In the figure: 1, bed base; 2, frame; 4, first transmission system; 5, second transmission system; 6, third transmission system; 7, rotating mechanism; 8, mixer head; 9, top frame; 10, processing table; 12, support plate; 14, seat rail; 15, frame; 16, first motor; 17, first threaded rod; 20, first slide rail; 21, first ear plate; 22, first slide bar; 23, diagonal support plate; 25, third motor; 26, third threaded rod; 27, outer frame; 29, bearing Connector; 30, second motor; 31, second threaded rod; 32, gear ring; 33, driving gear; 34, front plate; 35, third slide rail; 36, fourth motor; 37, second slide bar; 38, second slide rail; 41, back plate; 42, second side ear; 43, clamping cylinder; 44, perforation; 45, bearing ring; 46, butt ring; 47, tapered roller bearing; 48, connecting plate; 49, butt plate; 50, third slide bar; 52, third side ear; 53, clamping mechanism. DETAILED DESCRIPTION

[0019] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0020] Example 1: Please refer to Figures 1 to 10 The present invention provides a technical solution: a gantry type friction stir welding machine with a swingable head, the gantry type friction stir welding machine with a swingable head comprises: a bed base 1, a frame 2, a processing table 10, a front plate 34, a back plate 41, a receiving seat 29, a first transmission system 4, a second transmission system 5, a third transmission system 6 and a rotating mechanism 7, and a clamping mechanism 53 is provided on the front plate 34 and the back plate 41; The first transmission system 4 includes a seat rail 14, a first motor 16, a first threaded rod 17, a first slide rail 20 and a first ear plate 21, the second transmission system 5 includes a second motor 30, a top frame 9, a second threaded rod 31, a second slide rail 38, a back plate 41 and a second ear plate, the third transmission system 6 includes a third motor 25, a third threaded rod 26, a third slide rail 35, a front plate 34 and a third ear plate, the rotating mechanism 7 includes a connecting plate 48, a gear ring 32, a tapered roller bearing 47, a fourth motor 36 and a driving gear 33, the clamping mechanism 53 includes a clamping cylinder 43, a clamping sheet 49 and a clamping ring 46, the bed base 1 and the frame 2 are both made of casting material and are rigidly connected, and the seat rails 14 are fixed on both sides of the upper surface of the bed base 1; When in use, the angle adjustment function of the mixer head 8 is realized by utilizing the first transmission system 4, the second transmission system 5, the third transmission system 6 and the rotating mechanism 7, thereby greatly improving the flexibility of the welding direction, so that a single device can meet a variety of different welding requirements such as vertical and horizontal planes. The bed base 1 and the frame 2 are both made of casting material and are rigidly connected, providing a stable support structure, ensuring the overall stability and processing accuracy of the machine tool.

[0021] Embodiment 2: On the basis of embodiment 1, the first motor 16 is sleeved in the frame 15, the frame 15 is fixed on the bed base 1, the output end of the first motor 16 is fixedly connected to the first threaded rod 17, the first threaded rod 17 is located on the central axis of the bed base 1, the end surface of the first threaded rod 17 is rotatably connected with the support plate 12, the bottom of the support plate 12 is fixed to the bed base 1 by bolts, the first threaded rod 17 is located directly below the processing table 10, the lower surface of the processing table 10 is fixed with a first ear plate 21, and the first ear plate 21 and the first threaded rod 17 are threadedly connected; When using, combine Figure 1 As shown, the first transmission system 4 cooperates with the first motor 16, the first threaded rod 17, the first slide rail 20 and the first ear plate 21. By starting the first motor 16, the output end of the first motor 16 will drive the first threaded rod 17 to rotate, and under the action of the threaded connection, the first ear plate 21 will be driven to move, and then the processing table 10 will be driven to move, so that the processing table 10 can be accurately moved in the Y-axis direction, and the flexibility and accuracy of the welding operation are improved; A top frame 9 is fixed on the top of the frame 2, an outer frame 27 is fixed to the surface of the top frame 9 by bolts, a second motor 30 is fixed to one side of the outer frame 27 by bolts, an output end of the second motor 30 is fixedly connected to a second threaded rod 31, a terminal end of the second threaded rod 31 is rotatably connected to the outer frame 27, the second threaded rod 31 is located on the inner side of the outer frame 27, a groove is provided on the side and the surface of the outer frame 27, a plurality of equally spaced mounting holes are provided in the groove, a second slide rail 38 is fixed in the groove by bolts, a second slide bar 37 is provided at the position of the two groups of second slide rails 38 on the surface of the back plate 41, the second slide bar 37 and the second slide rail 38 are slidably connected, a second side ear 42 is fixed to the surface of the back plate 41, and the second side ear 42 and the second threaded rod 31 are threadedly connected; When in use, the second transmission system 5 utilizes the structure of the second motor 30, the second threaded rod 31, the second slide rail 38 and the second ear plate. By starting the second motor 30, the output end of the second motor 30 will drive the second threaded rod 31 to rotate, and under the action of the threaded connection, it will drive the second ear plate to move, and then drive the back plate 41 to move, so that the mixer head 8 can move along the X-axis direction to adapt to welding requirements of different heights, thereby enhancing the adaptability and flexibility of the mixer head 8.

[0022] Embodiment 3: On the basis of Embodiment 2, the third motor 25 is fixed to one end of the front plate 34 by bolts, the output end of the third motor 25 is fixedly connected to the third threaded rod 26, the third threaded rod 26 is located on the inner side of the front plate 34, the third slide rails 35 are fixed to both sides of the surface of the front plate 34 by bolts, the receiving seat 29 is arranged in front of the front plate 34, the third slide bar 50 is arranged on both sides of the surface of the receiving seat 29, the third slide bar 50 and the third slide rail 35 are slidably connected, the surface of the receiving seat 29 is fixed with a third side ear 52, the third side ear 52 is located between the two groups of third slide bars 50, the third side ear 52 extends into the front plate 34, the third side ear 52 and the third threaded rod 26 are threadedly connected, and a mixer head 8 is arranged on the surface of the receiving seat 29; When using, combine Figure 1 As shown, the third transmission system 6 cooperates with the third motor 25, the third threaded rod 26, the third slide rail 35 and the third ear plate. By starting the third motor 25, the output end of the third motor 25 will drive the third threaded rod 26 to rotate, and under the action of the threaded connection, the third ear plate will be driven to move, and then the receiving seat 29 will be driven to move, so as to achieve precise adjustment of the receiving seat 29 and the mixer head 8 in the Z-axis direction, thereby ensuring the accuracy of the welding position and the stability of the welding quality; A connecting plate 48 is fixed to the back of the front plate 34. The connecting plate 48 is in the shape of a disc. A gear ring 32 is fixed to the periphery of the connecting plate 48. A clamping cylinder 43 is provided on the surface of the connecting plate 48. The clamping cylinder 43 is located next to the front plate 34. There are two groups of clamping cylinders 43. The two groups of clamping cylinders 43 are symmetrically distributed about the central axis of the front plate 34. The output end of the clamping cylinder 43 penetrates the connecting plate 48. A tightening sheet 49 is fixed to the output end of the clamping cylinder 43. A through hole 44 is opened on the surface of the back plate 41. The through hole 44 is close to the top of the back plate 41. The fourth motor 36 is fixed to the back plate 41 by bolts. The fourth motor 36 is located at the through hole 44. The output end of the fourth motor 36 extends into and penetrates the through hole 44. A driving gear 33 is fixed to the output end of the fourth motor 36. The driving gear 33 and the gear ring 32 are meshingly connected. When in use, the rotating mechanism 7 includes a connecting plate 48, a ring gear 32, a tapered roller bearing 47, a fourth motor 36 and a driving gear 33, so that the mixer head 8 can rotate around the central axis, realizing the swing head function of stir friction welding, expanding the welding range, and improving the welding efficiency. By starting the fourth motor 36, the output end of the fourth motor 36 will drive the driving gear 33 to rotate, and then through the meshing action, drive the ring gear 32 to rotate, and then drive the connecting plate 48 and the front plate 34 to rotate, thereby realizing the angle adjustment of the mixer head 8.

[0023] Embodiment 4: On the basis of embodiment 3, a tapered roller bearing 47 is provided at the center of the surface of the back plate 41, the back plate 41 and the connecting plate 48 rotate relatively around the central tapered roller bearing 47, two groups of bearing rings 45 are rotatably connected to the output end of the fourth motor 36, the two groups of bearing rings 45 are fixed inside the through hole 44, a retaining ring 46 is fixed on the surface of the back plate 41, the retaining ring 46 is located on the outside of the tapered roller bearing 47, and the retaining sheet 49 and the retaining ring 46 are arranged relatively; When in use, the clamping mechanism 53 cooperates with the clamping cylinder 43, the clamping plate 49 and the retaining ring 46. After the angle adjustment of the mixer head 8 is completed, the clamping cylinder 43 is started, and the output end of the clamping cylinder 43 will drive the clamping plate 49 to move, so that the clamping plate 49 continues to approach the retaining ring 46 until it contacts and tightens, thereby generating friction, which can achieve relative stability between the front plate 34 and the back plate 41, prevent the mixer head 8 from moving during welding, and ensure the welding quality and safety. The tapered roller bearing 47 is located between the back plate 41 and the connecting plate 48, which supports the rotational movement of the back plate 41, and can withstand large radial and axial loads, ensuring the stability and durability of the rotating mechanism 7.

[0024] Working principle: In actual use, the angle adjustment function of the mixer head 8 is realized by utilizing the first transmission system 4, the second transmission system 5, the third transmission system 6 and the rotating mechanism 7, thereby greatly improving the flexibility of the welding direction, so that a single device can meet a variety of different welding requirements such as vertical and horizontal surfaces, thus avoiding the problem that the welding operation of the existing friction welding equipment becomes quite complicated and difficult when encountering a workpiece with a certain inclination angle between the welding surface and the worktable surface.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gantry type friction stir welding machine with a swingable head, characterized in that: The swingable gantry type friction stir welding machine comprises: a bed base (1), a frame (2), a processing table (10), a front plate (34), a back plate (41), a receiving seat (29), a first transmission system (4), a second transmission system (5), a third transmission system (6) and a rotating mechanism (7); the front plate (34) and the back plate (41) are provided with a clamping mechanism (53); The first transmission system (4) comprises a seat rail (14), a first motor (16), a first threaded rod (17), a first slide rail (20) and a first ear plate (21); the second transmission system (5) comprises a second motor (30), a top frame (9), a second threaded rod (31), a second slide rail (38), a back plate (41) and a second ear plate; the third transmission system (6) comprises a third motor (25), a third threaded rod (26), a third slide rail (35), a front plate (34) and a third ear plate; the rotating mechanism (7) comprises a connecting plate (48), a gear ring (32), a tapered roller bearing (47), a fourth motor (36) and a driving gear (33); and the clamping mechanism (53) comprises a clamping cylinder (43), a clamping plate (49) and a clamping ring (46).

2. The gantry-type friction stir welding machine with a swingable head according to claim 1, characterized in that: The bed base (1) and the frame (2) are both made of casting material and are rigidly connected. Seat rails (14) are fixed on both sides of the upper surface of the bed base (1). A groove is provided on the surface of the seat rail (14). A plurality of equally spaced mounting holes are provided in the groove. A first slide rail (20) is installed in the groove. First slide bars (22) are fixed on both sides of the lower surface of the processing table (10). The first slide bar (22) and the first slide rail (20) are slidably connected. An inclined support plate (23) is provided between the first slide bar (22) and the processing table (10). One end of the inclined support plate (23) is fixedly connected to the first slide bar (22), and the other end of the inclined support plate (23) is fixedly connected to the processing table (10).

3. The gantry-type friction stir welding machine with a swingable head according to claim 1, characterized in that: The first motor (16) is sleeved in a frame (15), the frame (15) is fixed on a bed base (1), an output end of the first motor (16) is fixedly connected to a first threaded rod (17), the first threaded rod (17) is located on the central axis of the bed base (1), an end surface of the first threaded rod (17) is rotatably connected to a support plate (12), the bottom of the support plate (12) is fixed to the bed base (1) by bolts, the first threaded rod (17) is located directly below the processing table (10), a first ear plate (21) is fixed on the lower surface of the processing table (10), and the first ear plate (21) and the first threaded rod (17) are threadedly connected.

4. The gantry-type friction stir welding machine with a swingable head according to claim 1, characterized in that: A top frame (9) is fixed on the top of the frame (2), an outer frame (27) is fixed on the surface of the top frame (9) by bolts, a second motor (30) is fixed on one side of the outer frame (27) by bolts, an output end of the second motor (30) is fixedly connected to a second threaded rod (31), a terminal end of the second threaded rod (31) is rotatably connected to the outer frame (27), the second threaded rod (31) is located on the inner side of the outer frame (27), a groove is provided on the side surface of the outer frame (27) and the surface of the outer frame (27), a plurality of equally spaced mounting holes are provided in the groove, a second slide rail (38) is fixed in the groove by bolts, a second slide bar (37) is provided on the surface of the back plate (41) at positions corresponding to the two groups of second slide rails (38), the second slide bar (37) and the second slide rail (38) are slidably connected, a second side ear (42) is fixed on the surface of the back plate (41), and the second side ear (42) and the second threaded rod (31) are threadedly connected.

5. The gantry-type friction stir welding machine with a swingable head according to claim 1, characterized in that: The third motor (25) is fixed to one end of the front plate (34) by bolts, and the output end of the third motor (25) is fixedly connected to the third threaded rod (26), the third threaded rod (26) is located on the inner side of the front plate (34), and the third slide rails (35) are fixed to both sides of the surface of the front plate (34) by bolts. The receiving seat (29) is arranged in front of the front plate (34), and the third slide bars (50) are arranged on both sides of the surface of the receiving seat (29). The third slide bars (50) and the third slide rails (35) are slidably connected. A third side ear (52) is fixed to the surface of the receiving seat (29), and the third side ear (52) is located between the two groups of third slide bars (50). The third side ear (52) extends into the front plate (34), and the third side ear (52) and the third threaded rod (26) are threadedly connected. A mixer head (8) is arranged on the surface of the receiving seat (29).

6. The gantry-type friction stir welding machine with a swingable head according to claim 1, characterized in that: A connecting plate (48) is fixed on the back of the front plate (34). The connecting plate (48) is in the shape of a disc. A gear ring (32) is fixed on the periphery of the connecting plate (48). A clamping cylinder (43) is provided on the surface of the connecting plate (48). The clamping cylinder (43) is located beside the front plate (34). Two groups of clamping cylinders (43) are provided. The two groups of clamping cylinders (43) are symmetrically distributed about the central axis of the front plate (34). The output end of the clamping cylinder (43) penetrates the connecting plate (48). A tightening plate (49) is fixed to the output end of the clamping cylinder (43).

7. The gantry-type friction stir welding machine with a swingable head according to claim 1, characterized in that: The surface of the back plate (41) is provided with a through hole (44), the through hole (44) being close to the top of the back plate (41), the fourth motor (36) being fixed to the back plate (41) by means of bolts, the fourth motor (36) being located at the through hole (44), the output end of the fourth motor (36) extending into and penetrating the through hole (44), the output end of the fourth motor (36) being fixed with a driving gear (33), the driving gear (33) and the gear ring (32) being meshingly connected.

8. The gantry-type friction stir welding machine with a swingable head according to claim 7, characterized in that: Two groups of bearing rings (45) are rotatably connected to the output end of the fourth motor (36), and the two groups of bearing rings (45) are fixed inside the through hole (44).

9. The gantry-type friction stir welding machine with a swingable head according to claim 1, characterized in that: A tapered roller bearing (47) is provided at the center of the surface of the back plate (41), and the back plate (41) and the connecting plate (48) rotate relatively around the center tapered roller bearing (47).

10. The gantry-type friction stir welding machine with a swingable head according to claim 1, characterized in that: A retaining ring (46) is fixed on the surface of the back plate (41), the retaining ring (46) is located outside the tapered roller bearing (47), and the retaining sheet (49) and the retaining ring (46) are arranged opposite to each other.

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