Auxiliary tailor-welding tool for spherical steel structure truss nodes

Abstract

The utility model relates to an auxiliary tailor-welding tool for spherical steel structure truss nodes. The auxiliary tailor-welding tool comprises a positioning rod A, a positioning rod B, a positioning rod C and a node positioning mechanism, a sphere center hole is formed in the middle of the positioning rod A; the outer ends of the positioning rod A, the positioning rod B and the positioning rod C are all connected with a node positioning mechanism; the node positioning mechanism comprises a node sleeve inclining towards the sphere center hole; the axis of any node sleeve is coplanar with the axis of the sphere center hole; the axes of all node sleeves and the axis of the sphere center hole are intersected at the same point; a telescopic mechanism A is arranged at the inner end of the positioning rod A; the inner end of the second positioning rod and the inner end of the third positioning rod are hinged to the sphere center hole. The utility model provides an auxiliary tailor-welding tool for spherical steel structure truss nodes, which can accurately position the nodes of three spherical structures and keep proper inclination angles, so that the axes of the nodes penetrate through the sphere centers of the spherical structures, and the tailor-welding of isosceles triangle units is facilitated; and the tailor-welding efficiency of the isosceles triangle units is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary welding of spherical steel trusses, and in particular to an auxiliary welding tool for spherical steel truss nodes. Background Technology

[0002] Spherical steel structures are spatial truss structures with a spherical outer surface. They offer advantages such as rational structure, simple and aesthetically pleasing appearance, large span, and economical material usage, and are widely used in stadiums, exhibition halls, conference centers, and other buildings. Spherical structures are classified according to their grid pattern into rib-ring type, Schweidler type, concentric square type, Kelwitt type, three-dimensional grid type, geodesic type, and two-way meridian type. Among these, the three-dimensional grid type spherical structure is widely used due to its fewer members and simpler construction. The basic unit of a three-dimensional grid type spherical structure is an isosceles triangular unit composed of three members and three nodes. Two members are of equal length; the last member is horizontal; the two members of equal length are inclined at the same angle in the same direction relative to the horizontal member. All three nodes are located towards the center of the sphere and connect adjacent members. The existing construction method for spherical structures involves welding individual isosceles triangular units together on the ground to form a basic component, which is then hoisted to a suitable position for welding and installation. The welding and assembly of isosceles triangular units is difficult and requires repeated verification of drawings to ensure correct welding, resulting in low construction efficiency. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide an auxiliary welding tool for spherical steel structure truss nodes.

[0004] The technical solution of this utility model is as follows: A spherical steel structure truss node auxiliary welding tool includes positioning rod A, positioning rod B, positioning rod C, and a node positioning mechanism; positioning rod A has a spherical center hole in its middle; it is assumed that the axis of the spherical center hole passes through the center of the spherical structure; the outer ends of positioning rod A, positioning rod B, and positioning rod C are all connected to the node positioning mechanism for positioning the node; the node positioning mechanism includes a node sleeve inclined towards the spherical center hole; the node sleeve is used to fit the node of the spherical structure; the axis of any node sleeve is coplanar with the axis of the spherical center hole; the axes of all node sleeves intersect the axis of the spherical center hole at the same point, which is the center of the spherical structure; the node sleeve positions the fitted spherical structure at a suitable inclination angle; the inner end of positioning rod A is provided with a telescopic mechanism A; Telescopic mechanism A includes telescopic rod A and locking screw A; telescopic rod A is fitted relative to positioning rod A to achieve telescopic movement, and is locked by locking screw A to lock the position of telescopic rod A; a transverse long rod is fixed to telescopic rod A; the transverse long rod is perpendicular to positioning rod A; both ends of the transverse long rod are provided with transverse long holes and limiting screws symmetrically arranged about the left and right sides of positioning rod A; the two limiting screws pass through the transverse long holes and are connected to the outer ends of positioning rod B and positioning rod C respectively; the inner ends of positioning rod B and positioning rod C are both hinged to the ball center hole; positioning rod B and positioning rod C are both deflected by equal angles relative to positioning rod A; three node sleeves are located at the three vertices of an isosceles triangle, and the fitted nodes are in appropriate positions; then the rods and nodes are connected to form an isosceles triangular unit.

[0005] Preferably, the node positioning mechanism further includes a mounting base and a locking shaft; the center of the side of the node sleeve is hinged to the mounting base; an angle adjustment plate extends outward from the side of the node sleeve; the angle adjustment plate is provided with several adjustment holes; the several adjustment holes are distributed around the center circumference of the side of the node sleeve; the locking shaft passes through the mounting base and is inserted into the adjustment hole; by selecting the adjustment hole into which the locking shaft is inserted, the tilt angle of the node sleeve is changed to assist in the welding of isosceles triangular units of spherical structures with different radii.

[0006] Furthermore, the mounting base is U-shaped; the node sleeve is set inside the mounting base, and both sides are hinged to the mounting base; the mounting base provides complete support for the node sleeve and ensures that the selected tilt angle of the node sleeve does not change.

[0007] Furthermore, the node positioning mechanism also includes a locking nut; the locking shaft is a locking bolt; the locking bolt passes through the threaded end of the mounting base and is threaded to engage with the locking nut; the end of the locking nut abuts against the outer wall of the mounting base; the locking nut can prevent the locking bolt from coming out.

[0008] Furthermore, the auxiliary welding tool for the spherical steel truss node also includes a telescopic mechanism B; the telescopic mechanism B includes a telescopic rod B and a locking screw B; the telescopic rod B is fitted with positioning rod A / positioning rod B / positioning rod C and locked by the locking screw B; the telescopic mechanism B causes the three node sleeves to move outward or inward to accommodate the welding of isosceles triangular units of different sizes; the locking screw B locks the adjusted position of the node sleeve.

[0009] Furthermore, there are two locking screws, arranged axially along positioning rod A / positioning rod B / positioning rod C, to increase the positional stability of the node sleeve after adjustment.

[0010] Preferably, positioning rod A has a collar A in the middle; the inner hole of collar A is a spherical hole; positioning rod B has a collar B coaxial with the spherical hole at its inner end; positioning rod C has a collar C coaxial with the spherical hole; collar A, collar B, and collar C are hinged to each other; collar A is located at the upper part of the vertical section of positioning rod A; collar B is located at the middle part of the vertical section of positioning rod B; collar C is located at the lower part of the vertical section of positioning rod C; the upper and lower sides of positioning rod A, positioning rod B, and positioning rod C are aligned with each other, so that the three node sleeves are on the same plane, ensuring accurate node position.

[0011] Furthermore, the auxiliary welding tool for the spherical steel structure truss node also includes a locking nut; a collar C extending upwards to form a convex ring A coaxial with the spherical center hole; a collar B fitted onto the convex ring A; the locking nut threadedly engaging with the end of the convex ring A; the end face of the locking nut abutting against the end face of the collar A; the locking nut engaging with the convex ring A to fully restrict collar A, collar B, and collar C, ensuring the coaxial state of collar A, collar B, and collar C.

[0012] Furthermore, collar B extends upwards from a convex ring B coaxial with the ball's center hole; the inner wall of convex ring B is connected to the outer wall of convex ring A; the outer wall of convex ring B is connected to the ball's center hole; convex ring B separates collar A from collar C, so that the deflection of collar C will not affect collar A, making it easy to adjust the deflection angle of collar C.

[0013] Furthermore, the end face of the locking nut abuts against the convex ring B, limiting the movement of the collar A.

[0014] Preferably, a conventional isosceles triangular unit will have a glass curtain wall installed on the outside; the glass curtain wall requires a support frame; the support frame is connected to the spherical structure through a column; the end of the telescopic rod is provided with a semi-circular positioning clip to assist in the installation of the support column.

[0015] The beneficial effects of this utility model are as follows: The auxiliary welding tool for spherical steel structure truss nodes of this utility model has the following advantages:

[0016] (1) This utility model provides an auxiliary welding tool for spherical steel truss nodes, which can accurately position the nodes of three spherical structures and maintain a suitable tilt angle so that the node axis passes through the center of the spherical structure, which facilitates the welding of isosceles triangular units; the welding efficiency of isosceles triangular units is improved.

[0017] (2) The telescopic mechanism B of this utility model allows the three node sleeves to move outward or inward to adapt to the welding of isosceles triangle units of different sizes; the locking screw B locks the adjusted position of the node sleeve. Attached Figure Description

[0018] Figure 1 This is a perspective view of the auxiliary welding tool for spherical steel structure truss nodes of this utility model;

[0019] Figure 2 yes Figure 1 The main view;

[0020] Figure 3 yes Figure 2 AA section view;

[0021] Figure 4 yes Figure 2 BB section view;

[0022] Figure 5 yes Figure 3 CC section view;

[0023] Figure 6 This is a schematic diagram of the working process of the auxiliary welding tool for spherical steel structure truss nodes of this utility model;

[0024] In the diagram: 01. Node, 02. Member.

[0025] 1. Positioning rod A; 11. Ball hole; 121. Telescopic rod A; 1211. Horizontal long rod; 1212. Horizontal long hole; 1213. Limiting screw; 1214. Positioning clamp; 122. Locking screw A; 13. Collar A; 2. Positioning rod B; 21. Collar B; 211. Protruding ring B; 3. Positioning rod C; 31. Collar C; 311. Protruding ring A; 41. Node sleeve; 411. Angle adjustment plate; 4111. Adjustment hole; 42. Mounting base; 43. Locking shaft; 44. Hinge screw; 45. Locking nut; 51. Telescopic rod B; 52. Locking screw B; 6. Locking nut. Detailed Implementation

[0026] Example 1: See Figure 1-6A spherical steel truss node auxiliary welding tool includes a positioning rod A1, a positioning rod B2, a positioning rod C3, and a node 01 positioning mechanism. Positioning rod A1 has a central hole 11 in its middle. It is assumed that the axis of the central hole 11 passes through the center of the spherical structure. The outer ends of positioning rod A1, B2, and C3 are all connected to the node 01 positioning mechanism for positioning node 01. This node 01 positioning mechanism includes a node sleeve 41 inclined towards the central hole 11. The node sleeve 41 is used to fit the node 01 of the spherical structure. The axis of any node sleeve 41 is coplanar with the axis of the central hole 11. The axes of all node sleeves 41 intersect the axis of the central hole 11 at the same point, which is the center of the spherical structure. The node sleeve 41 positions the fitted spherical structure at a suitable inclination angle. A telescopic mechanism A is provided at the inner end of positioning rod A1. This telescopic mechanism A includes a telescopic rod A21 and a locking screw. A122; Telescopic rod A121 is fitted relative to positioning rod A1 to achieve telescopic movement, and is locked by locking screw A122 to lock the position of telescopic rod A121; Telescopic rod A121 is fixedly connected to transverse long rod 1211; transverse long rod 1211 is perpendicular to positioning rod A1; transverse long rod 1211 has transverse long holes 1212 and limiting screws 1213 symmetrically arranged about left and right of positioning rod A1 at both ends; the two limiting screws 1213 pass through transverse long holes 1212 respectively and are connected to the outer ends of positioning rod B2 and positioning rod C3; the inner ends of positioning rod B2 and positioning rod C3 are both hinged to ball hole 11; positioning rod B2 and positioning rod C3 are both deflected by equal angles relative to positioning rod A1; the three node sleeves 41 are located at the three vertices of an isosceles triangle, and the fitted node 01 is in a suitable position; then the rod 02 and node 01 are connected to form an isosceles triangular unit.

[0027] Compared with the prior art, this utility model provides an auxiliary welding tool for spherical steel structure truss nodes, which can accurately position the nodes 01 of the three spherical structures and maintain a suitable tilt angle so that the axis of node 01 passes through the center of the spherical structure, which facilitates the welding of isosceles triangular units; the welding efficiency of isosceles triangular units is improved.

[0028] The node 01 positioning mechanism also includes a mounting base 42 and a locking shaft 43; the center of the side of the node sleeve 41 is hinged to the mounting base 42; an angle adjustment plate 411 extends outward from the side of the node sleeve 41; the angle adjustment plate 411 is provided with several adjustment holes 4111; the several adjustment holes 4111 are distributed around the center circumference of the side of the node sleeve 41; the locking shaft 43 passes through the mounting base 42 and is inserted into the adjustment hole 4111; by selecting the adjustment hole 4111 into which the locking shaft 43 is inserted, the tilt angle of the node sleeve 41 is changed to assist in the welding of isosceles triangular units with different radii of spherical structures.

[0029] The mounting base 42 is U-shaped; the node sleeve 41 is set inside the mounting base 42 and is hinged to the mounting base 42 on both sides; the mounting base 42 provides complete support for the node sleeve 41 and ensures that the selected tilt angle of the node sleeve 41 does not change.

[0030] Mounting base 42 is connected to node sleeve 41 by hinge screw 44; the hinge screw 44 includes a smooth shaft section and a threaded section; the smooth shaft section passes through mounting base 42; the threaded section passes through node sleeve 41 and is threadedly engaged with node sleeve 41; the hinge screw 44 and mounting base 42 cooperate to provide a rotating pair for the deflection of node sleeve 41; the hinge screw 44 also extends beyond the inner wall of node sleeve 41 to connect node 01 and node sleeve 41 into one unit.

[0031] The positioning mechanism of node 01 also includes a locking nut 45; the locking shaft 43 is a locking bolt; the locking bolt passes through the threaded end of the mounting base 42 and is threaded to engage with the locking nut 45; the end of the locking nut 45 abuts against the outer wall of the mounting base 42; the locking nut 45 can prevent the locking bolt from coming out.

[0032] The auxiliary welding tool for the spherical steel truss node also includes a telescopic mechanism B; the telescopic mechanism B includes a telescopic rod B51 and a locking screw B52; the telescopic rod B51 is fitted with positioning rod A1 / positioning rod B2 / positioning rod C3 and locked by the locking screw B52; the telescopic mechanism B causes the three node sleeves 41 to move outward or inward to accommodate the welding of isosceles triangular units of different sizes; the locking screw B52 locks the adjusted position of the node sleeves 41.

[0033] There are two locking screws B52, which are arranged along the axial direction of positioning rod A1 / positioning rod B2 / positioning rod C3 to increase the positional stability of node sleeve 41 after adjustment.

[0034] Positioning rod A1 has a collar A13 in the middle; the inner hole of collar A13 is a ball-shaped hole 11; positioning rod B2 has a collar B21 coaxial with the ball-shaped hole 11 at its inner end; positioning rod C3 has a collar C31 coaxial with the ball-shaped hole 11; collar A13, collar B21, and collar C31 are hinged to each other; collar A13 is located at the upper part of the vertical section of positioning rod A1; collar B21 is located at the middle part of the vertical section of positioning rod B2; collar C31 is located at the lower part of the vertical section of positioning rod C3; positioning rod A1, positioning rod B2, and positioning rod C3 are aligned with each other on their upper and lower sides, so that the three node sleeves 41 are on the same plane, ensuring the accurate position of node 01.

[0035] The auxiliary welding tool for the spherical steel truss node also includes a locking nut 6; a collar C 31 extends upward to form a convex ring A 311 coaxial with the spherical center hole 11; a collar B 21 is fitted onto the convex ring A 311; the locking nut 6 is threadedly engaged with the end of the convex ring A 311; the end face of the locking nut 6 abuts against the end face of the collar A 13; the locking nut 6 and the convex ring A 311 engage to fully restrict the collar A 13, collar B 21, and collar C 31, ensuring the coaxial state of the collar A 13, collar B 21, and collar C 31.

[0036] The collar 21 extends upward from the convex ring 211 coaxial with the ball hole 11; the inner wall of the convex ring 211 is connected to the outer wall of the convex ring 311; the outer wall of the convex ring 211 is connected to the ball hole 11; the convex ring 211 separates the collar 13 from the collar 31, so that the deflection of the collar 31 will not affect the collar 13, and it is convenient to adjust the deflection angle of the collar 31.

[0037] The end face of the locking nut 6 abuts against the convex ring B 211, limiting the movement of the collar A 13.

[0038] See Figure 6 The working process of this embodiment:

[0039] Welding of a single isosceles triangle element: Insert node 01 into node sleeve 41; adjust the deflection angle of node sleeve 41 so that node 01 is fitted into node sleeve 41; connect the three nodes 01 using rod 02 and weld them together.

[0040] Welding of adjacent isosceles triangle units: Fit the two node sleeves 41 of the auxiliary tool onto the two nodes 01 of the formed isosceles triangle unit; the third node sleeve 41 of the auxiliary tool extends outward; insert node 01 into the extended node sleeve 41; use rod 02 to weld node 01 to the fitted node 01.

[0041] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that: a glass curtain wall is installed on the outside of the conventional isosceles triangular unit; the glass curtain wall needs to be supported; the support is connected to the spherical structure through the support column; the end of the telescopic rod A121 is provided with a semi-circular positioning clip 1214 to assist in the installation of the support column.

Claims

1. A tool for auxiliary welding of spherical steel truss nodes, characterized in that, The system includes positioning rod A, positioning rod B, positioning rod C, and a node positioning mechanism. Positioning rod A has a central hole in its middle. The outer ends of positioning rod A, B, and C are all connected to the node positioning mechanism. This node positioning mechanism includes node sleeves inclined towards the central hole. The axis of any node sleeve is coplanar with the axis of the central hole. The axes of all node sleeves intersect the axis of the central hole at the same point. A telescopic mechanism A is located at the inner end of positioning rod A. This telescopic mechanism A includes a telescopic rod A and a locking screw A. The telescopic rod A is fitted relative to positioning rod A and locked by the locking screw A. A transverse long rod is fixed to the telescopic rod A. The transverse long rod is perpendicular to positioning rod A. Both ends of the transverse long rod have transverse long holes and limiting screws symmetrically arranged about positioning rod A. The two limiting screws pass through the transverse long holes and connect to the outer ends of positioning rod B and C, respectively. The inner ends of positioning rod B and C are hinged to the central hole.

2. The auxiliary welding tool for spherical steel structure truss nodes according to claim 1, characterized in that: The node positioning mechanism also includes a mounting base and a locking shaft; the center of the side of the node sleeve is hinged to the mounting base; an angle adjustment plate extends outward from the side of the node sleeve; the angle adjustment plate is provided with several adjustment holes; the several adjustment holes are distributed around the center of the side of the node sleeve; the locking shaft passes through the mounting base and is inserted into the adjustment holes.

3. The auxiliary welding tool for spherical steel structure truss nodes according to claim 2, characterized in that: The mounting base is U-shaped; the node sleeve is set inside the mounting base, and both sides are hinged to the mounting base.

4. The auxiliary welding tool for spherical steel structure truss nodes according to claim 3, characterized in that: The node positioning mechanism also includes a locking nut; the locking shaft is a locking bolt; the locking bolt passes through the threaded end of the mounting base and is threaded to engage with the locking nut; the end of the locking nut abuts against the outer wall of the mounting base.

5. The auxiliary welding tool for spherical steel structure truss nodes according to claim 2, characterized in that: It also includes telescopic mechanism B; telescopic mechanism B includes telescopic rod B and locking screw B; telescopic rod B is fitted with positioning rod A / positioning rod B / positioning rod C and locked by locking screw B.

6. The auxiliary welding tool for spherical steel structure truss nodes according to claim 1, characterized in that: Positioning rod A has a collar A in the middle; the inner hole of collar A is a ball-shaped hole; positioning rod B has a collar B coaxial with the ball-shaped hole at its inner end; positioning rod C has a collar C coaxial with the ball-shaped hole; collar A, collar B, and collar C are hinged together; collar A is located at the upper part of the vertical section of positioning rod A; collar B is located at the middle part of the vertical section of positioning rod B; collar C is located at the lower part of the vertical section of positioning rod C; the upper and lower sides of positioning rod A, positioning rod B, and positioning rod C are aligned with each other.

7. The auxiliary welding tool for spherical steel structure truss nodes according to claim 6, characterized in that: It also includes a lock nut; a collar C extending upwards to form a convex ring A coaxial with the ball hole; a collar B fitted onto the convex ring A; a lock nut threadedly engaging with the end of the convex ring A; and the end face of the lock nut abutting against the end face of the collar A.

8. The auxiliary welding tool for spherical steel structure truss nodes according to claim 7, characterized in that: The collar B extends upward from the convex ring B, which is coaxial with the ball's central hole; the inner wall of the convex ring B is connected to the outer wall of the convex ring A; the outer wall of the convex ring B is connected to the ball's central hole.

9. The auxiliary welding tool for spherical steel structure truss nodes according to claim 8, characterized in that: The end face of the lock nut abuts against the convex ring B.

10. The auxiliary welding tool for spherical steel structure truss nodes according to claim 1, characterized in that: The end of the telescopic rod is equipped with a semi-circular positioning clip.

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