Jig frame for assembling truss

Abstract

The jig frame comprises a base, an adjusting cavity is formed in the upper end of the base, a gear box is fixed to the middle of the interior of the adjusting cavity, a main gear is installed on one side wall of the gear box, and auxiliary gears are connected to the two sides of the main gear. The synchronous adjusting mechanism has the beneficial effects that by arranging the synchronous adjusting mechanism consisting of the main gear, the auxiliary gear, the studs, the screw sleeves, the two-way screw rods and the screw blocks, when the distance between the stand columns is adjusted according to the width of the truss, the main gear is driven to rotate through the knob, and the main gear drives the two groups of studs to rotate through the auxiliary gear, so that the distance between the stand columns is adjusted. When the distance between the bearing blocks is adjusted according to the height of the truss, only the hand wheel needs to drive the two-way screw to rotate, then the screw blocks drive the bearing blocks to move under the action of the threads, the adjusting process is simple, the adjusting efficiency is high, and the assembling efficiency of the truss is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of truss assembly jigs, and particularly relates to a jig for assembling trusses. Background Art

[0002] In the manufacturing process of steel structure trusses, scattered components need to be assembled into a whole. To ensure the accuracy of the components and improve the processing efficiency, traditional methods often make fixed assembly jigs according to the sizes of the components.

[0003] Patent No. CN202021756180.3 discloses an adjustable steel truss assembly jig, which includes a base, a first column, a second column and a column bracket. The base includes a first connection base, a second connection base and a connecting bottom rod. The first connection base and the second connection base are respectively connected to the connecting bottom rod. Vertical first and second columns are respectively fixedly connected to the top surfaces of the first connection base and the second connection base. Diagonal braces are respectively arranged between the first column and the first connection base and the connecting bottom rod, and diagonal braces are respectively arranged between the second column and the second connection base and the connecting bottom rod.

[0004] Although the above patent is universal in use, the structural dimensions of the jig are adjustable and can be applied to components of different heights and widths, avoiding the need to remanufacture the jig due to size changes, thus improving the utilization rate of the jig. However, in the actual adjustment process, since it is a step-by-step adjustment and needs to be fixed by bolts after adjustment, the adjustment process is relatively cumbersome and the adjustment efficiency is low, affecting its adjustment performance and the assembly efficiency of the truss. Therefore, there is an urgent need for a jig for assembling trusses to solve the above problems. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] The technical problem to be solved by the utility model is to provide a jig for assembling trusses that is easy to operate, has high adjustment efficiency and good adjustment performance in view of the current situation of the prior art.

[0007] (II) Technical Solutions

[0008] The utility model is realized by the following technical solutions: The utility model provides a jig for assembling trusses, which includes a base. An adjustment cavity is opened inside the upper end of the base. A gear box is fixed in the middle of the adjustment cavity. A main gear is installed on one side wall of the gear box. Both sides of the main gear are connected with sub-gears. A stud is fixed on one side wall of the sub-gear. A nut sleeve is sleeved on the stud. A column is fixed at the top end of the nut sleeve. A concave cavity is opened on one side wall of the column. A bidirectional screw is installed in the concave cavity. A hand wheel is fixed at one end of the bidirectional screw. Threaded blocks are symmetrically sleeved on the bidirectional screw. A bearing block is fixed on one side wall of the threaded block.

[0009] Further, the adjustment cavity is formed on the base, the main gear and the auxiliary gear are both rotatably installed on the inner wall of the gearbox, the main gear meshes with the auxiliary gear, and both the main gear and the auxiliary gear are helical gears.

[0010] By adopting the above technical solution, the main gear can drive the auxiliary gear to rotate.

[0011] Further, the stud is fixedly connected to the auxiliary gear, the other end of the stud is rotatably connected to the adjustment cavity, the screw sleeve is threadedly connected to the stud, and the specification of the screw sleeve matches the specification of the adjustment cavity.

[0012] By adopting the above technical solution, the auxiliary gear drives the stud to rotate, and then the screw sleeve drives the column to move to adjust its spacing, and the spacing of the columns can be adjusted according to the width of the assembled truss.

[0013] Further, the column is welded to the screw sleeve, and the concave cavity is formed on the column.

[0014] By adopting the above technical solution, the concave cavity provides an installation space for the bidirectional screw and the screw block.

[0015] Further, the bidirectional screw is rotatably installed in the concave cavity, the handwheel is fixedly connected to one end of the bidirectional screw, the screw block is threadedly connected to the bidirectional screw, the specification of the screw block matches the specification of the concave cavity, and the bearing block is fixed to one side wall of the screw block by bolts.

[0016] By adopting the above technical solution, the handwheel can drive the bidirectional screw to rotate, and then the screw block drives the bearing block to move under the action of the thread, and the spacing of the bearing blocks can be adjusted according to the assembly height of the truss.

[0017] Further, a knob is connected to the main gear, the knob penetrates through the gearbox and the base and is arranged outside, a positioning hole with a hexagonal structure (not shown in the figure) is formed in the middle of one side wall of the knob, and a positioning block with a hexagonal structure is inserted into the positioning hole.

[0018] By adopting the above technical solution, the knob can drive the main gear to rotate, and placing the positioning block in the positioning hole can fix the knob, and then fix the main gear.

[0019] Further, a connecting rod is welded to one end of the positioning block, a positioning rod with a telescopic structure is fixed to one end of the connecting rod, and the fixed part of the positioning rod is rotatably connected to the outer side wall of the base.

[0020] By adopting the above technical solution, the connecting rod can stretch the positioning rod to separate the positioning block from the positioning hole, release the fixation of the knob, and at the same time, the connecting rod can be rotated to the outside, thereby avoiding affecting the twisting of the knob.

[0021] (III) Beneficial effects

[0022] The utility model has the following beneficial effects compared with the prior art:

[0023] To solve the problem that in the prior art, when adjusting the width and height of a jig for assembling a truss, since the adjustment is carried out step by step and needs to be fixed by bolts after adjustment, the adjustment process is relatively cumbersome and the adjustment efficiency is low, affecting its adjustment performance and the assembly efficiency of the truss. The utility model sets up a synchronous adjustment mechanism composed of a main gear, a sub-gear, a stud, a nut sleeve, a bidirectional screw rod and a screw block. When adjusting the distance between columns according to the width of the truss, only need to drive the main gear to rotate by a knob, and the main gear drives two groups of studs to rotate through the sub-gear, and then the nut sleeve can move under the action of the thread. When adjusting the distance between bearing blocks according to the height of the truss, only need to drive the bidirectional screw rod to rotate by a handwheel, and then the screw block drives the bearing block to move under the action of the thread. Not only is the adjustment process simple, but also the adjustment efficiency is high, effectively improving the assembly efficiency of the truss. Description of the drawings

[0024] Figure 1 is a schematic structural diagram of a jig for assembling a truss according to the utility model;

[0025] Figure 2 is a front view of a column in a jig for assembling a truss according to the utility model;

[0026] Figure 3 is a schematic internal structure diagram of a gearbox in a jig for assembling a truss according to the utility model;

[0027] Figure 4 is in a jig for assembling a truss according to the utility model Figure 1 an enlarged view of part A therein.

[0028] The reference numerals are explained as follows:

[0029] 1, base; 2, adjustment cavity; 3, bearing block; 4, concave cavity; 5, screw block; 6, handwheel; 7, column; 8, gearbox; 9, nut sleeve; 10, stud; 11, bidirectional screw rod; 12, main gear; 13, sub-gear; 14, connecting rod; 15, positioning block; 16, knob; 17, positioning rod. Detailed implementation manners

[0030] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] As Figures 1 - 4 shown, a jig for assembling a truss in this embodiment includes a base 1. An adjustment cavity 2 is formed inside the upper end of the base 1. A gearbox 8 is fixed in the middle of the adjustment cavity 2. A main gear 12 is installed on one side wall of the gearbox 8. Both sides of the main gear 12 are connected with auxiliary gears 13. The main gear 12 can drive the auxiliary gears 13 to rotate. A stud 10 is fixed on one side wall of the auxiliary gear 13. A nut sleeve 9 is sleeved on the stud 10. The auxiliary gear 13 drives the stud 10 to rotate, and then the nut sleeve 9 drives the column 7 to move to adjust its spacing. The spacing of the columns 7 can be adjusted according to the width of the assembled truss. The top of the nut sleeve 9 is fixed with a column 7. A concave cavity 4 is formed on one side wall of the column 7. The concave cavity 4 provides an installation space for a bidirectional screw 11 and a screw block 5. The bidirectional screw 11 is installed in the concave cavity 4. A handwheel 6 is fixed at one end of the bidirectional screw 11. Symmetric screw blocks 5 are sleeved on the bidirectional screw 11. A bearing block 3 is fixed on one side wall of the screw block 5. The handwheel 6 can drive the bidirectional screw 11 to rotate, and then the screw block 5 drives the bearing block 3 to move under the action of the thread. The spacing of the bearing blocks 3 can be adjusted according to the assembling height of the truss.

[0032] As Figures 1 - 4 shown, in this embodiment, the adjustment cavity 2 is formed on the base 1. The main gear 12 and the auxiliary gears 13 are both rotatably installed on the inner wall of the gearbox 8. The main gear 12 meshes with the auxiliary gears 13. The main gear 12 and the auxiliary gears 13 are both helical gears. The stud 10 is fixedly connected with the auxiliary gear 13. The other end of the stud 10 is rotatably connected with the adjustment cavity 2. The nut sleeve 9 is threadedly connected with the stud 10. The specification of the nut sleeve 9 matches the specification of the adjustment cavity 2. The column 7 is welded on the nut sleeve 9. The concave cavity 4 is formed on the column 7. The bidirectional screw 11 is rotatably installed in the concave cavity 4. The handwheel 6 is fixedly connected with one end of the bidirectional screw 11. The screw block 5 is threadedly connected with the bidirectional screw 11. The specification of the screw block 5 matches the specification of the concave cavity 4. The bearing block 3 is fixed on one side wall of the screw block 5 by bolts.

[0033] As Figures 1 - 4As shown, in this embodiment, a knob 16 is connected to the main gear 12. The knob 16 passes through the gearbox 8 and the base 1 and is arranged on the outside. A positioning hole with a hexagonal structure (not shown in the figure) is provided in the middle of one side wall of the knob 16. A positioning block 15 with a hexagonal structure is inserted into the positioning hole. The knob 16 can drive the main gear 12 to rotate. Placing the positioning block 15 in the positioning hole can fix the knob 16, and thus fix the main gear 12. One end of the positioning block 15 is welded with a connecting rod 14. One end of the connecting rod 14 is fixed with a positioning rod 17 with a telescopic structure. The fixed part of the positioning rod 17 is rotatably connected to the outer side wall of the base 1. The connecting rod 14 stretches the positioning rod 17 to separate the positioning block 15 from the positioning hole, releasing the fixation of the knob 16. At the same time, the connecting rod 14 can be rotated to the outside, thus avoiding affecting the twisting of the knob 16.

[0034] The specific implementation process of this embodiment is as follows: Place the device in place, and then adjust the distance between the columns 7 according to the width of the truss. Drive the main gear 12 to rotate through the knob 16. The main gear 12 drives two sets of studs 10 to rotate through the secondary gear 13. Then, the screw sleeve 9 moves under the action of the thread to drive the column 7 to move, and adjust its distance to the width of the truss assembly. Then rotate the positioning rod 17 to make the positioning block 15 above the positioning hole, and then insert the positioning block 15 into the positioning hole through the positioning rod 17 to fix the knob 16, and thus fix the main gear 12. When adjusting the distance between the bearing blocks 3 according to the height of the truss, drive the bidirectional screw 11 to rotate through the handwheel 6, and then the screw block 5 drives the bearing block 3 to move under the action of the thread. After adjustment, place the truss members on the bearing blocks 3 for assembly. This method not only has a simple adjustment process, but also has a high adjustment efficiency, effectively improving the assembly efficiency of the truss.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tire frame for assembling a truss, characterized in that: The invention comprises a base (1), wherein an adjusting cavity (2) is provided inside the upper end of the base (1), a gear box (8) is fixed in the middle of the adjusting cavity (2), a main gear (12) is mounted on one side wall of the gear box (8), both sides of the main gear (12) are connected to auxiliary gears (13), a stud (10) is fixed on one side wall of the auxiliary gear (13), a screw sleeve (9) is sleeved on the stud (10), a column (7) is fixed at the top of the screw sleeve (9), a concave cavity (4) is provided on one side wall of the column (7), a bidirectional screw (11) is mounted in the concave cavity (4), a hand wheel (6) is fixed at one end of the bidirectional screw (11), a screw block (5) is symmetrically sleeved on the bidirectional screw (11), and a bearing block (3) is fixed on one side wall of the screw block (5).

2. A tire frame for assembling a truss according to claim 1, characterized in that: The regulating cavity (2) is formed on the base (1); the main gear (12) and the sub gear (13) are both rotatably mounted on the inner wall of the gear box (8); the main gear (12) and the sub gear (13) are meshed with each other; and both the main gear (12) and the sub gear (13) are helical gears.

3. The tire frame for assembling a truss according to claim 1, characterized in that: The stud (10) is fixedly connected to the auxiliary gear (13), the other end of the stud (10) is rotatably connected to the adjustment chamber (2), the screw sleeve (9) is connected to the stud (10) via a thread, and the specifications of the screw sleeve (9) match the specifications of the adjustment chamber (2).

4. The tire frame for assembling a truss according to claim 1, characterized in that: The column (7) is welded to the screw sleeve (9), and the concave cavity (4) is formed on the column (7).

5. A tire frame for assembling trusses according to claim 4, characterized in that: The bidirectional screw (11) is rotatably mounted in the concave cavity (4); the hand wheel (6) is fixedly connected to one end of the bidirectional screw (11); the screw block (5) is connected to the bidirectional screw (11) via threads; the specifications of the screw block (5) match those of the concave cavity (4); and the bearing block (3) is fixed to a side wall of the screw block (5) via bolts.

6. A tire frame for assembling trusses according to claim 5, characterized in that: The main gear (12) is connected to a knob (16), which passes through the gear box (8) and the base (1) and is arranged on the outside. A hexagonal positioning hole is provided in the middle of a side wall of the knob (16), and a hexagonal positioning block (15) is inserted into the positioning hole.

7. A tire frame for assembling a truss according to claim 6, characterized in that: A connecting rod (14) is welded to one end of the positioning block (15), a positioning rod (17) with a telescopic structure is fixed to one end of the connecting rod (14), and a fixed portion of the positioning rod (17) is rotatably connected to the outer side wall of the base (1).

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