A floating angle friction stir welding platform

Abstract

The utility model relates to the technical field of welding platforms, and specifically to a floating inclination friction stir welding platform. The utility model comprises a bottom plate that can be locked and fixed on the working surface of the welding equipment and a top plate located above the bottom plate, one end of the bottom plate and the top plate are horizontally hinged to each other, and the other end is driven by a second lifting mechanism to adjust the inclination of the top plate, and a middle support member for supporting the top plate is also provided on the surface of the bottom plate. When the utility model adds an inclination adjustment function to the traditional friction stir welding equipment, there is no need to install an adjustment component at the stirring head, which has the advantages of low cost and convenient modification.

Description

Technical Field

[0001] The utility model relates to the technical field of welding platforms, in particular to a floating angle friction stir welding platform. Background Art

[0002] In the friction stir welding equipment, in addition to the core tool stirring head, which has an important influence on the weld formation and performance, the welding inclination angle also has an important influence on it. The welding inclination angle refers to the angle between the axis of the FSW stirring head and the normal direction of the plane where the weld is located; the appropriate process inclination angle along the welding direction can ensure that the stirring head shoulder can accommodate the material stirred by the stirring needle, and can effectively transfer these materials from the front of the stirring head to the back, and exert pressure on the material behind the stirring needle to form a dense weld.

[0003] Most of the existing welding inclination angle adjustment adopts the method of adjusting the angle of the stirring head, such as the Chinese patent publication number CN115673520B entitled a stir friction welding device capable of adjusting the side inclination angle and its welding method and the Chinese patent publication number CN113458586A entitled a stir friction welding machine. However, in fact, since there is no requirement for the welding inclination angle in the traditional stir friction welding, the welding inclination angle of most traditional stir friction welding equipment with integrated welding and milling functions is fixed at 0°; if it is necessary to make the traditional stir friction welding equipment have a welding inclination angle, it is often necessary to add an inclination adjustment function to the traditional stir friction welding. However, in the actual modification of the stir friction welding equipment, since the stirring head involves the lifting mechanism of the stirring head, the XY axis drive mechanism and the rotating drive assembly of the stirring needle, if the angle adjustment of the stirring head described in the cited patent is adopted, not only the modification cost is high, but also there is a problem of insufficient modification convenience, so it is urgent to solve. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a floating inclination friction stir welding platform. When adding an inclination adjustment function to the traditional friction stir welding equipment, there is no need to install an adjustment component at the stirring head, which has the advantages of low cost and convenient modification.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A floating inclination friction stir welding platform comprises a bottom plate which can be locked and fixed on the working surface of the welding equipment and a top plate located above the bottom plate. One end of the bottom plate and the top plate are horizontally hinged to each other, and the other end is driven by a second lifting mechanism to adjust the inclination angle of the top plate. A middle support member for supporting the top plate is also arranged on the upper surface of the bottom plate.

[0007] As a further solution of the utility model: the fixed seat of the second lifting mechanism is fixedly connected to the bottom plate, and the telescopic end is hinged with a floating joint hingedly connected to the top plate, and the hinge axis of the floating joint is parallel to the hinge axis between the bottom plate and the top plate.

[0008] As a further solution of the utility model: a flip connecting rod is fixed at one end of the top plate, and the long direction of the flip connecting rod forms an angle with the surface of the top plate; the top plate is hingedly connected to the hinged base on the bottom plate through the flip connecting rod to form the horizontal hinge, the horizontal rotating shaft of the flip connecting rod passes through the hinged base, and the outer wall of the penetrating section of the horizontal rotating shaft is radially fixedly connected, and a dividing scale used in conjunction with the pointer is fixed on the hinged base.

[0009] As a further solution of the utility model: a support base is fixed in the middle of the bottom plate, and a guide installation groove with an upward notch is opened on the top of the support base. A support block that can slide in a vertical direction is detachably installed in the groove cavity of the guide installation groove, and a first lifting mechanism that drives the support block to slide upward is installed at the bottom of the guide installation groove. The top of the support block is parallel to the lower plate surface of the top plate after rotation adjustment, and the middle support member is composed of the support base, the support block and the first lifting mechanism.

[0010] As a further solution of the utility model: a jacking base is fixed on the top of the base plate, and a mounting accommodating groove with a notch facing upward is provided on the top of the jacking base, and the second lifting mechanism is installed in the mounting accommodating groove. The second lifting mechanism and the first lifting mechanism are both hand-cranked lifters with a locking function, and the jacking base and the supporting base are respectively provided with a second hand wheel socket and a first hand wheel socket for inserting the hand wheel shaft of the hand-cranked lifter.

[0011] As a further solution of the utility model: a fixing screw for locking the supporting part is arranged on the supporting base.

[0012] As a further solution of the utility model: the support base is arranged as a plurality of groups distributed in a dot matrix.

[0013] As a further solution of the utility model: a locking assembly for locking the flip connecting rod is arranged on the hinged base.

[0014] As a further solution of the utility model: a locking sleeve is provided on the through-section rod of the horizontal rotating shaft and is fixed to the hinged base. A plurality of graduated screw holes are evenly distributed circumferentially on the outer edge of the locking sleeve. A locking bolt that passes through the horizontal rotating shaft is screwed into one of the graduated screw holes. The locking assembly is composed of the locking sleeve and the locking bolt.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. After fixing the bottom plate and the working surface of the friction stir welding equipment, use the upper plate surface of the top plate as the working surface of the friction stir welding equipment. By adjusting the angle of the top plate, the welding inclination of the friction stir welding equipment can be adjusted. This welding inclination adjustment method does not require linkage with the main shaft end of the equipment, and can be adjusted in place at one time; in addition, this welding platform is simple and practical, with low cost; and when the traditional friction stir welding equipment has a welding inclination requirement, it only needs to fix the bottom plate and the working surface of the friction stir welding equipment, which has high versatility and convenient modification of the friction stir welding equipment.

[0017] 2. The telescopic end of the second lifting mechanism is hinged to the top plate through a floating joint, which is not only convenient for adjustment but also ensures good connectivity between the top plate and the bottom plate.

[0018] 3. When the horizontal shaft rotates, the pointer is driven to rotate synchronously. The angle of rotation of the top plate can be quickly located through the scale indicated by the pointer on the scale, ensuring the accuracy of welding inclination adjustment in the friction stir welding equipment.

[0019] 4. A guide installation groove with an upward notch is provided on the top of the support base. A support block that slides in the vertical direction is detachably provided in the guide installation groove. A first lifting mechanism that drives the support block to rise is installed at the bottom of the guide installation groove, so that the support block can achieve stable lifting and sliding and the first lifting mechanism can maintain stable lifting and driving. When the top plate is adjusted to different inclination angles, the support block with a matching top inclination angle can be quickly replaced so that the top of the support block is parallel to the lower plate surface of the top plate after rotation adjustment, ensuring that the support block has a larger contact area with the lower surface of the top plate when supporting the lower surface of the top plate, thereby ensuring a stable support effect on the lower surface of the top plate.

[0020] 5. Both the second lifting mechanism and the first lifting mechanism adopt a hand-cranked lifting adjustment structure, and there is no need to set up a power mechanism such as a motor or a cylinder that requires an external power supply or gas source. Therefore, when modifying the traditional stir friction welding equipment, there is no need to consider the modification of the pipeline, which ensures the convenience of modifying the stir friction welding equipment.

[0021] 6. A set screw for locking the support block is provided on the support base, and the set screw further locks the support block to ensure the locking stability of the support block after lifting and lowering adjustment.

[0022] 7. The support base is arranged into several groups distributed in a dot matrix to realize multi-area support for the lower surface of the top plate, and the force acting on the support for the lower surface of the top plate is differentiated to the first lifting mechanism of each support base to prevent a single support from loosening and causing unstable support for the lower surface of the top plate.

[0023] 8. A locking assembly for locking the flip link is provided on the articulated base, which synchronously assists the locking of the flip link, further ensuring the stability of the top plate after rotation and adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 It is a structural schematic diagram of the bottom plate of the utility model.

[0026] Figure 3 It is a schematic diagram of the structure of the utility model when the top plate is in a horizontal state.

[0027] In the figure: 10, bottom plate; 11, supporting base; 111, set screw; 112, first hand wheel socket; 113, guide mounting groove; 12, hinged base; 121, locking sleeve; 1211, indexing screw hole; 122, locking bolt; 123, indexing scale; 13, lifting base; 131, second hand wheel socket; 132, mounting accommodating groove; 20, top plate; 21, flip connecting rod; 211, horizontal rotating shaft; 212, pointer; 30, second lifting mechanism; 31, floating joint; 40, support block; 50, first lifting mechanism. DETAILED DESCRIPTION

[0028] 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.

[0029] For ease of understanding, the specific structure and working mode of the utility model are further described below in conjunction with the accompanying drawings:

[0030] The specific structure of the utility model refers to Figure 1-3As shown, its main structure includes a bottom plate 10 that can be locked and fixed on the working surface of the welding equipment and a top plate 20 located above the bottom plate 10. Among them, one end of the bottom plate 10 and the top plate 20 are horizontally hinged to each other, and the other end is driven by the second lifting mechanism 30 to adjust the inclination angle of the top plate 20. The upper plate surface of the bottom plate 10 is also provided with a middle support member for supporting the top plate 20. When in use, the bottom plate 10 is fixed on the working surface of the welding equipment, and the top plate 20 can be driven to rotate and adjust by the second lifting mechanism 30, and the lower plate surface of the top plate 20 is supported by the middle support member to stabilize the lower plate surface of the top plate 20 on the supporting platform; the top surface of the top plate 20 is used to constitute the working surface of the welding equipment, that is, the angle adjustment of the working surface of the welding equipment is realized, and the top surface of the top plate 20 replaces the working surface of the traditional stir friction welding equipment, and the welding inclination adjustment of the stir friction welding operation is realized by adjusting the angle of the top plate 20. This welding inclination adjustment method does not need to be linked with the main shaft end of the equipment and can be adjusted in place at one time; in addition, the welding platform is simple to use and has a low cost; and when the traditional stir friction welding equipment has a welding inclination requirement, it is only necessary to fix the bottom plate 10 to the working surface of the stir friction welding equipment, which has high versatility and convenience in the modification of the stir friction welding equipment.

[0031] On the basis of the above, if Figure 1 As shown, the top of the bottom plate 10 is fixedly connected with a lifting base 13, a supporting base 11 and an articulated base 12 in sequence along the horizontal direction. A flip connecting rod 21 is fixed at one end of the top plate 20, and the top plate 20 is hingedly connected to the articulated base 12 on the bottom plate 10 through the flip connecting rod 21 to form a horizontal hinge; a second lifting mechanism 30 is installed on the lifting base 13, and the telescopic end of the second lifting mechanism 30 is hinged with a floating joint 31 hingedly connected to the bottom plate 10, and the axis of the horizontal rotating shaft 211 is parallel to the articulated axis of the floating joint 31, so that the second lifting mechanism 30 can be used to perform lifting and lowering movements, thereby driving the top plate 20 to rotate and adjust around the horizontal axis, which has high adjustment convenience. Preferably, the length direction of the flip connecting rod 21 forms an angle with the board surface of the top plate 20, and the lower end of the flip connecting rod 21 faces inward and the upper end faces outward, so that the rotation axis of the top plate 20 is internal, and it is more labor-saving to push the top plate 20 to flip. In addition, a first lifting mechanism 50 is installed on the support base 11, and the support block 40 is arranged on the telescopic end of the first lifting mechanism 50. The first lifting mechanism 50 is used to drive the support block 40 to rise and fall, so as to achieve stable support for the lower surface of the top plate 20.

[0032] Further, such as Figure 1As shown, the middle support member is composed of a support base 11, a support block 40 and a first lifting mechanism 50. The top of the support base 11 is provided with a guide installation groove 113 with an upward notch, and a support block 40 that can slide in the vertical direction can be detachably installed in the groove cavity of the guide installation groove 113. The first lifting mechanism 50 is installed at the bottom of the guide installation groove 113 and can drive the support block 40 to slide upward. Therefore, the stable lifting and sliding of the support block 40 and the stable lifting and driving of the first lifting mechanism 50 can be ensured. In addition, the distribution is formed so that the support block 40 and the first lifting mechanism 50 do not need to be fixed. Therefore, under different adjustment inclination angles of the top plate 20, the support block 40 with a matching top inclination angle can be quickly replaced; by replacing the support block 40 whose top is parallel to the lower plate surface of the top plate 20 after rotation adjustment, it is ensured that the support block 40 has a larger contact area with the lower surface of the top plate 20 when supporting the lower surface of the top plate 20, thereby ensuring the stable support effect on the lower surface of the top plate 20. In addition, when the top plate 20 needs to be rotated to a desired angle, since the top inclination angle of the support block 40 selected to match the rotation angle is constant, by observing whether the support block 40 fits against the lower surface of the top plate 20, it can also be verified whether the adjusted inclination angle of the top plate 20 is accurate.

[0033] In addition, the top of the lifting base 13 is provided with an installation receiving groove 132 with the notch facing upward, and the second lifting mechanism 30 is installed in the installation receiving groove 132, ensuring the stable lifting and lowering adjustment of the second lifting mechanism 30. In addition, the second lifting mechanism 30 and the first lifting mechanism 50 are both hand-cranked lifters with a locking function. The lifting base 13 and the support base 11 are respectively provided with a second hand wheel socket 131 and a first hand wheel socket 112 for inserting the hand wheel shaft of the hand-cranked lifter. By inserting the hand wheel shaft into the first hand wheel socket 112 or the second hand wheel socket 131, the second lifting mechanism 30 or the first lifting mechanism 50 can be driven to perform lifting and lowering adjustment by turning the hand wheel. With the hand-cranked lifting and lowering adjustment structure, there is no need to set a power mechanism such as a motor or a cylinder that requires an external power source or gas source, so that when modifying the traditional stir friction welding equipment, there is no need to consider the modification of the pipeline, which ensures the convenience of modifying the stir friction welding equipment. Specifically, the hand-operated lifter with a locking function includes a rack that is slidably arranged in the installation groove 132 or the guide installation groove 113 in the vertical direction. In addition, a gear that meshes with the rack is rotatably matched in the installation groove 132 or the guide installation groove 113; the gear axis is horizontally arranged, and a first bevel tooth is coaxially welded on the gear. A second bevel tooth with an axis vertically arranged and meshing with the first bevel tooth is also provided in the installation groove 132 or the guide installation groove 113; a worm wheel is coaxially welded on the second bevel tooth, and a worm that meshes with the worm wheel is also provided in the installation groove 132 or the guide installation groove 113, and the handwheel plug rod is coaxially plugged with the worm wheel to form a rotation-stopping fit. The worm is driven to rotate by the hand wheel, and the meshing of the worm and the worm wheel drives the worm wheel and the second bevel gear to rotate, and the meshing of the second bevel gear and the first bevel gear drives the first bevel gear and the gear to rotate, and the meshing of the gear and the rack realizes the lifting and lowering movement of the rack. In this adjustment method, since the worm wheel has a one-way locking effect on the worm, the rack can be adjusted and locked after lifting. Of course, in actual implementation, other lifting and lowering adjustment structures with locking functions in the prior art can also be used, such as a sleeve-type telescopic rod with a radial locking pin of the telescopic rod.

[0034] On the basis of the above, if Figure 1 As shown, a set screw 111 for locking the support block 40 is provided on the support base 11. The set screw 111 further locks the support block 40, thereby ensuring the locking stability of the support block 40 after lifting and lowering adjustment.

[0035] In addition, if Figure 2 As shown, the support base 11 is arranged into a plurality of groups distributed in a dot matrix to achieve multi-area support for the lower surface of the top plate 20, and the force acting to support the lower surface of the top plate 20 is differentiated to the first lifting mechanism 50 of each support base 11 to prevent a single support from loosening and causing unstable support for the lower surface of the top plate 20.

[0036] On the basis of the above, if Figure 1-3 As shown, the horizontal rotating shaft 211 passes through the hinged base 12, and a pointer 212 is fixedly connected to the outer wall of the through section of the horizontal rotating shaft 211, and a scale 123 used in conjunction with the pointer 212 is fixed on the hinged base 12. When the horizontal rotating shaft 211 rotates, the pointer 212 is driven to rotate synchronously, and the rotation angle of the top plate 20 is quickly located through the scale indicated by the pointer 212 on the scale 123, thereby ensuring the accuracy of the welding inclination adjustment in the friction stir welding equipment.

[0037] Furthermore, a locking assembly for locking the flip link 21 is provided on the hinged base 12, which synchronously assists the locking of the flip link 21, thereby further ensuring the stability of the top plate 20 after rotation adjustment.

[0038] Specifically, Figure 1 and Figure 2 As shown, the horizontal rotating shaft 211 passes through the hinged base 12, and a locking sleeve 121 fixedly connected to the hinged base 12 is coaxially sleeved on the through-section rod of the horizontal rotating shaft 211, and a plurality of indexing screw holes 1211 are evenly distributed around the outer edge of the locking sleeve 121, and a locking bolt 122 passing through the horizontal rotating shaft 211 is screwed into one of the indexing screw holes 1211, and a locking assembly is formed by the locking sleeve 121 and the locking bolt 122. After the top plate 20 is rotated and adjusted, the horizontal rotating shaft 211 can be locked in rotation by using the locking bolt 122 to pass through the corresponding indexing screw hole 1211.

[0039] Of course, for those skilled in the art, the present invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0041] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A floating angle friction stir welding platform, characterized in that: The invention comprises a bottom plate (10) which can be locked and fixed on the working surface of the welding equipment, and a top plate (20) located above the bottom plate (10); one end of the bottom plate (10) and the top plate (20) are horizontally hinged to each other, and the other end is driven by a second lifting mechanism (30) to adjust the inclination angle of the top plate (20); a middle support member for supporting the top plate (20) is also arranged on the upper plate surface of the bottom plate (10).

2. The floating angle friction stir welding platform according to claim 1, characterized in that: The fixed seat of the second lifting mechanism (30) is fixedly connected to the bottom plate (10), and the telescopic end is hingedly connected to a floating joint (31) hingedly connected to the top plate (20), and the hinge axis of the floating joint (31) is parallel to the hinge axis between the bottom plate (10) and the top plate (20).

3. The floating angle friction stir welding platform according to claim 2, characterized in that: A flip connecting rod (21) is fixed to one end of the top plate (20), and the length direction of the flip connecting rod (21) forms an angle with the plate surface of the top plate (20); the top plate (20) is hingedly connected to the hinge base (12) on the bottom plate (10) through the flip connecting rod (21) to form the horizontal hinge; the horizontal rotation axis (211) of the flip connecting rod (21) passes through the hinge base (12), and a pointer (212) is radially fixedly connected to the outer wall of the through section of the horizontal rotation axis (211); and a graduation scale (123) used in conjunction with the pointer (212) is fixed on the hinge base (12).

4. A floating angle friction stir welding platform according to any one of claims 1 to 3, characterized in that: A support base (11) is fixed in the middle of the bottom plate (10), and a guide installation groove (113) with an upward notch is opened on the top of the support base (11), and a support block (40) that can slide in a vertical direction is detachably installed in the groove cavity of the guide installation groove (113), and a first lifting mechanism (50) that drives the support block (40) to slide upward is installed at the bottom of the guide installation groove (113), and the top of the support block (40) is parallel to the lower plate surface of the top plate (20) after rotation adjustment, and the support base (11), the support block (40) and the first lifting mechanism (50) together constitute the middle support member.

5. The floating angle friction stir welding platform according to claim 4, characterized in that: A lifting base (13) is fixed on the top of the base plate (10), and a mounting groove (132) with a notch facing upward is provided on the top of the lifting base (13). The second lifting mechanism (30) is installed in the mounting groove (132). The second lifting mechanism (30) and the first lifting mechanism (50) are both hand-cranked lifters with a locking function. The lifting base (13) and the supporting base (11) are respectively provided with a second hand wheel socket (131) and a first hand wheel socket (112) for inserting a hand wheel shaft of the hand-cranked lifter.

6. The floating angle friction stir welding platform according to claim 4, characterized in that: The support base (11) is provided with a set screw (111) for locking the support block (40).

7. The floating angle friction stir welding platform according to claim 4, characterized in that: The support bases (11) are arranged as a plurality of groups distributed in a dot matrix.

8. The floating angle friction stir welding platform according to claim 3, characterized in that: The hinged base (12) is provided with a locking assembly for locking the flip connecting rod (21).

9. The floating angle friction stir welding platform according to claim 8, characterized in that: A locking sleeve (121) fixedly connected to the hinged base (12) is sleeved on the through-section rod of the horizontal rotating shaft (211); a plurality of graduated screw holes (1211) are evenly distributed around the outer edge of the locking sleeve (121); a locking bolt (122) penetrating the horizontal rotating shaft (211) is screwed into one of the graduated screw holes (1211); the locking sleeve (121) and the locking bolt (122) constitute the locking assembly.

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