An assembly jig for a metal guardrail

Abstract

The utility model belongs to metal guardrail processing technical field discloses a kind of assembly tool of metal guardrail, including tool rest, two horizontal assembly plate one and two and horizontal assembly plate one one corresponding telescopic piece one, telescopic rod of telescopic piece one is horizontally arranged and with the length direction of horizontal assembly plate one perpendicular, horizontal mounting plate and reciprocating drive assembly are equipped in tool rest middle part, horizontal mounting plate extends along horizontal assembly plate one length direction and upper side is equipped with several horizontal assembly plate two, telescopic piece two is equipped between every two adjacent horizontal assembly plate two, one end of tool rest is equipped with horizontal conveying belt, and between the end of conveying belt close to tool rest and horizontal mounting plate is equipped with arrangement box, and the side of lower end of arrangement box is provided with the piece hole that passes through the other side, and horizontal assembly plate two upper side is equipped with fixed clamping part and movable clamping part with the elastic member being connected between the two with interval.The utility model has the following advantages and effects: assembly efficiency is high, reduces labour intensity and the advantage of high precision.

Description

Technical Field

[0001] This utility model relates to the field of metal guardrail processing technology, and in particular to a hole-opening device for metal guardrail profiles. Background Technology

[0002] Metal railings, such as balcony railings, stair handrails, and road barriers, are typically constructed by welding or screwing together posts and beams. In traditional construction, assembly relies heavily on manual positioning and fixing, which has several drawbacks: 1. Low efficiency: Each post and beam requires individual measurement and positioning, which is time-consuming and labor-intensive; 2. Poor accuracy: Manual operation easily leads to cumulative errors, resulting in uneven spacing, uneven height, and other quality issues; 3. High labor intensity: Requires multiple workers, and each post and beam needs to be placed and positioned individually. Since some metal railings have many posts, this process is physically demanding. Therefore, there is an urgent need for specialized tooling that can improve assembly efficiency, ensure accuracy, and reduce labor intensity. Utility Model Content

[0003] The purpose of this utility model is to provide an assembly fixture for metal guardrails, which has the advantages of high assembly efficiency, reduced labor intensity and high precision.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an assembly fixture for a metal guardrail, comprising a fixture frame, two horizontal assembly plates for placing metal guardrail beams, and two telescopic components corresponding to the horizontal assembly plates. Each horizontal assembly plate has an abutment portion extending along its length on its upper side. The telescopic rod of the telescopic component is horizontally arranged and perpendicular to the length direction of the horizontal assembly plate. A horizontal mounting plate is provided in the middle of the fixture frame between the two horizontal assembly plates. The horizontal mounting plate extends along the length direction of the horizontal assembly plates and has several horizontal assembly plates (two) for placing metal guardrail posts on its upper side. The horizontal assembly plates (two) are perpendicular to the horizontal assembly plates. Telescopic components (two) are provided between each pair of adjacent horizontal assembly plates (two) and between one end of the horizontal mounting plate and one of the horizontal assembly plates (two) located at one end of the plurality of horizontal mounting plates. The telescopic rod of the telescopic component (two) is parallel to the length direction of the horizontal mounting plate. A horizontal conveyor belt and a [missing information - likely related to a specific assembly or component] are provided at one end of the fixture frame. A power assembly supports and drives the rotation of the conveyor belt. The conveyor belt extends along the length of the horizontal mounting plate, and its outer surface has several outwardly extending limiting portions spaced at intervals. An arrangement box for stacking horizontally arranged columns is provided between the end of the conveyor belt near the tooling frame and the horizontal mounting plate. The upper end of the arrangement box has an inlet for the columns on the conveyor belt to enter, and one side of the lower end has an outlet hole that penetrates to the other side. The upper side of the second horizontal mounting plate has fixed clamping portions and movable clamping portions spaced along the length of the horizontal mounting plate. The movable clamping portions are close to the arrangement box, and the end of the movable clamping portions is higher than the fixed clamping portions. An elastic element connects the movable clamping portions and the fixed clamping portions. The tooling frame is provided with a reciprocating drive assembly that can drive the horizontal mounting plate to move along its length, so that the movable clamping portions on the second horizontal mounting plate can guide the column at the bottom of the arrangement box out through the outlet hole and be positioned between the fixed clamping portions and the movable clamping portions by the elastic element.

[0005] By adopting the above technical solution, this assembly fixture is used to assemble columns and beams with circular or square cross-sections. Workers place two beams on the corresponding horizontal assembly plates, one on the side of the abutment portion closest to the horizontal mounting plate. The spacing between adjacent columns is adjusted using the telescopic component two. The power assembly drives the conveyor belt to rotate. A worker places the columns sequentially on the upper limit portion of the conveyor belt, near the tooling frame, at the end of the conveyor belt furthest from the fixture frame. In this way, the columns on the conveyor belt will sequentially enter the arrangement box. The reciprocating drive assembly drives the horizontal mounting plate to move away from the arrangement box along its length. The movable clamping seat on the second mounting plate hooks the column at the bottom of the arrangement box and positions it on the second horizontal mounting plate under the action of the elastic element until all the columns to be installed are placed on the corresponding second horizontal mounting plate. Then, the worker places the two crossbeams in the accurate position according to the measurement. The two telescopic components work to bring the two first horizontal mounting plates closer to each other until the two crossbeams clamp all the columns. The whole process only requires one worker and this assembly tool to complete the assembly of the metal guardrail, reducing labor intensity and improving assembly efficiency. Here, the positioning of the columns is carried out simultaneously using all the second telescopic components, reducing the cumulative error caused by manual operation and improving the accuracy of the metal guardrail assembly.

[0006] A further feature of this invention is that the inlet, the outlet, and the inner cross-section of the arrangement box are all rectangular. The arrangement box contains two vertically spaced position adjustment plates that are spaced apart along the length of the horizontal assembly plate. The arrangement box also contains two telescopic components that correspond one-to-one with the position adjustment plates, allowing them to move closer or further apart.

[0007] By adopting the above technical solution and setting up a position adjustment plate and telescopic component three, the columns can be aligned in the arrangement box, avoiding the situation where the columns are much longer than the horizontal assembly plate two and fall off due to uneven force when they are led out of the outlet hole onto the horizontal assembly plate two, thus affecting the assembly efficiency.

[0008] A further feature of this invention is that each of the two horizontal assembly plates is provided with two fixed clamping parts and two movable clamping parts, and the two fixed clamping parts and the two movable clamping parts are distributed at intervals along the length of the horizontal assembly plate. An elastic element is provided between each fixed clamping part and the corresponding movable clamping part.

[0009] By adopting the above technical solution, the reliability of the positioning column on the second horizontal assembly plate has been improved.

[0010] A further feature of this invention is that the movable clamping portion on the horizontal assembly plate two has a guide portion extending toward the corresponding fixed clamping portion, and a guide hole is provided on the corresponding fixed clamping portion for the guide portion to pass through. The guide hole passes through both sides of the fixed clamping portion, and the elastic member is connected to the lower end of one side of the corresponding fixed clamping portion and the lower end of one side of the movable clamping portion.

[0011] By adopting the above technical solution, the guide part on the movable clamping part can protect the elastic element, avoid damage from foreign objects or affect its normal operation, extend its service life, and provide a guarantee for the movable clamping part, elastic element and fixed clamping part on the horizontal assembly plate to cooperate with the normal positioning column.

[0012] A further feature of this invention is that the reciprocating drive assembly includes a servo motor, a lead screw fixedly connected to the output shaft of the servo motor, and a lead screw nut sleeved on the lead screw. The lead screw is parallel to the length direction of the horizontal mounting plate. Two strip slide rails along the length direction of the horizontal mounting plate are fixed on the tooling frame. Two slide blocks corresponding to the strip slide rails are fixed on the lower side of the horizontal mounting plate.

[0013] By adopting the above technical solution, the combination of servo motor, lead screw and lead nut has high precision, which ensures the accuracy of metal guardrail assembly.

[0014] A further feature of this invention is that the tooling frame is provided with two strip guide rails, the strip guide rails are perpendicular to the horizontal assembly plate, and the lower ends of the horizontal assembly plate are each fixed with a slider that cooperates with the corresponding strip guide rail.

[0015] By adopting the above technical solution, the horizontal assembly plate moves more smoothly on the tooling frame, thereby improving assembly efficiency.

[0016] A further configuration of this utility model is as follows: the power assembly includes a frame, a drive motor fixed on the frame, a drive roller, and a driven roller; the conveyor belt is sleeved on the drive roller and the driven roller; the drive roller and the driven roller are respectively located at both ends of the conveyor belt and their axial directions are perpendicular to the length direction of the conveyor belt; the output shaft of the drive motor is parallel to the axial direction of the drive roller, and the end of the output shaft of the drive motor is fixedly connected to one end of the drive roller.

[0017] By adopting the above technical solution, the drive motor, driving roller, driven roller and conveyor belt work together to improve the efficiency of column positioning, thereby improving the efficiency of overall assembly.

[0018] A further feature of this invention is that: several idlers are provided on the frame within the conveyor belt, and the several idlers extend axially along the drive drum and are evenly spaced side by side along the length of the conveyor belt.

[0019] By adopting the above technical solution, the idler rollers provide support, reduce the running resistance of the conveyor belt, ensure the stable operation of the conveyor belt, and improve the efficiency of the conveyor columns.

[0020] The present invention is further configured such that: the first telescopic component is a cylinder or a hydraulic cylinder; the second telescopic component is a cylinder or a hydraulic cylinder; and the third telescopic component is a cylinder or a hydraulic cylinder.

[0021] By adopting the above technical solution, either the pneumatic cylinder or the hydraulic cylinder can provide sufficient power for the movement of the horizontal assembly plate one, the horizontal assembly plate two, and the position adjustment plate, ensuring the normal use of this assembly fixture.

[0022] A further feature of this invention is that the horizontal assembly plate is provided with a scale extending along its length.

[0023] By adopting the above technical solution, it is easier for staff to determine the position of the crossbeam on the horizontal assembly plate, thereby improving assembly efficiency.

[0024] The beneficial effects of this utility model are:

[0025] 1. This assembly fixture, with its conveyor belt, arrangement box, reciprocating drive assembly, telescopic component 2, and fixed clamping parts, movable clamping parts, and elastic components on several horizontal assembly plates 2, allows only one worker to assemble several columns, reducing labor intensity and improving assembly efficiency.

[0026] 2. The telescopic component 2 on the horizontal assembly plate 2 is used to determine the distance between adjacent horizontal assembly plates 2, and at the same time determine the distance between adjacent columns, reducing the cumulative error caused by manual operation and improving the accuracy of metal guardrail assembly.

[0027] 3. The arrangement box is equipped with a position adjustment plate and a telescopic component three, which can make the columns aligned in the arrangement box. This prevents the columns from falling off the horizontal assembly plate two due to uneven force when the columns are much longer than the horizontal assembly plate two, which would affect the assembly efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is a cross-sectional view of the second horizontal assembly plate in this utility model.

[0030] Figure 3 This is a schematic diagram of the arrangement box in this utility model.

[0031] Figure 4 This is a schematic diagram of the connection structure between the conveyor belt and the power component in this utility model.

[0032] In the diagram: 1. Tooling frame; 2. Horizontal assembly plate one; 21. Abutment part; 3. Telescopic component one; 4. Horizontal mounting plate; 5. Horizontal assembly plate two; 51. Fixed clamping part; 511. Guide hole; 52. Movable clamping part; 521. Guide part; 53. Elastic component; 6. Telescopic component two; 7. Conveyor belt; 71. Limiting part; 8. Power assembly; 81. Frame; 82. Drive motor; 83. Drive roller; 84. Driven roller; 85. Idler roller; 9. Arrangement box; 91. Inlet; 92. Outlet; 10. Reciprocating drive assembly; 101. Servo motor; 102. Lead screw; 103. Nut; 11. Position adjustment plate; 12. Telescopic component three; 13. Strip slide rail; 14. Slide block; 15. Strip guide rail; 16. Slider; 17. Scale. Detailed Implementation

[0033] Example: An assembly fixture for a metal guardrail, such as Figure 1 As shown, the fixture includes a tooling frame 1, on which are provided two horizontal mounting plates 2 for placing metal guardrail beams and two telescopic components 3 corresponding to the horizontal mounting plates 2. The telescopic components 3 are cylinders or hydraulic cylinders. The telescopic rods of the telescopic components 3 are horizontally arranged and perpendicular to the length direction of the horizontal mounting plates 2. The housing of the telescopic components 3 is fixed on the tooling frame 1, and one side of the output shaft end of the telescopic components 3 is fixed to the lower side of the horizontal mounting plates 2. The tooling frame 1 is also provided with two strip guide rails 15, which are perpendicular to the horizontal mounting plates 2. The lower ends of the two horizontal mounting plates 2 are fixed with sliders 16 that cooperate with the corresponding strip guide rails 15. Each horizontal mounting plate 2 has an abutment part 21 extending along its length direction on its upper side, and a scale 17 extending along its length direction is provided on the horizontal mounting plate 2.

[0034] Furthermore, such as Figure 1 and Figure 2As shown, a horizontal mounting plate 4 is located in the middle of the tooling frame 1 between two horizontal mounting plates 1-2. The horizontal mounting plate 4 extends along the length of the horizontal mounting plates 1-2 and has several horizontal mounting plates 2-5 on its upper side for placing metal guardrail posts. Two strip slide rails 13 are fixed on the tooling frame 1 along the length of the horizontal mounting plates 1-2. Two slide blocks 14 are fixed on the lower side of the horizontal mounting plate 4, corresponding one-to-one with the strip slide rails 13. The horizontal mounting plates 2-5 are perpendicular to the horizontal mounting plates 1-2. Telescopic components 2-6 are provided between each pair of adjacent horizontal mounting plates 2-5 and between one end of the horizontal mounting plate 4 and one of the horizontal mounting plates 2-5 located at one end of the several horizontal mounting plates 4. The telescopic rod of the telescopic component 2-6 is parallel to the length of the horizontal mounting plate 4. Here, the telescopic component 2-6 is a cylinder or hydraulic cylinder. The upper side of the horizontal mounting plates 2-5 has fixed clamping parts 51 and movable clamping parts 52 spaced along the length of the horizontal mounting plate 4. Each horizontal mounting plate 2-5 has two fixed clamping parts 51. The horizontal mounting plate 25 has two movable clamping parts 52 and two fixed clamping parts 51, which are spaced apart along the length of the horizontal mounting plate 2. Each fixed clamping part 51 and its corresponding movable clamping part 52 are provided with an elastic element 53. The movable clamping part 52 on the horizontal mounting plate 25 has a guide part 521 extending toward the corresponding fixed clamping part 51, and the corresponding fixed clamping part 51 has a guide hole 511 for the corresponding guide part 521 to pass through. The guide hole 511 passes through both sides of the fixed clamping part 51. The elastic element 53 is connected to the lower end of one side of the corresponding fixed clamping part 51 and the lower end of the side of the movable clamping part 52. The lower side of the horizontal mounting plate 25 has a sliding groove, and the upper side of the horizontal mounting plate 4 has a strip-shaped protrusion for the sliding groove to be inserted. The strip-shaped protrusion extends along the length of the horizontal mounting plate 4. Here, there are two strip-shaped protrusions on the horizontal mounting plate 4. The two strip-shaped protrusions are distributed side by side and spaced apart along the length of the horizontal mounting plate 25. The horizontal mounting plate 25 has two sliding grooves.

[0035] Furthermore, such as Figure 1 and Figure 4 As shown, one end of the tooling frame 1 is provided with a horizontal conveyor belt 7 and a power assembly 8 for supporting and driving the conveyor belt 7 to rotate. The conveyor belt 7 extends along the length direction of the horizontal mounting plate 4 and the outer surface of the conveyor belt 7 has an outwardly extending limiting part 71. The power assembly 8 includes a frame 81, a drive motor 82 fixed on the frame 81, a drive roller 83 and a driven roller 84. The conveyor belt 7 is sleeved on the drive roller 83 and the driven roller 84. The drive roller 83 and the driven roller 84 are located at both ends of the conveyor belt 7 and their axial directions are perpendicular to the length direction of the conveyor belt 7. The output shaft of the drive motor 82 is parallel to the axial direction of the drive roller 83 and the end of the output shaft of the drive motor 82 is fixedly connected to one end of the drive roller 83. Several idlers 85 are provided on the frame 81 inside the conveyor belt 7. The several idlers 85 extend along the axial direction of the drive roller 83 and are evenly spaced side by side in the length direction of the conveyor belt 7.

[0036] Furthermore, such as Figure 1 and Figure 3 As shown, an arrangement box 9 for stacking horizontally arranged columns is provided between the end of the conveyor belt 7 near the tooling frame 1 and the horizontal mounting plate 4. The upper end of the arrangement box 9 has an inlet 91 for the columns on the conveyor belt 7 to enter, and the lower end has an outlet hole 92 that penetrates to the other side. The inlet 91, the outlet hole 92, and the inner cross-section of the arrangement box 9 are all rectangular. The arrangement box 9 has two vertical position adjustment plates 11 that are spaced apart along the length of the horizontal mounting plate 2 5. The arrangement box 9 also has two telescopic components 3 12 that correspond one-to-one with the position adjustment plates 11 and move them closer or further apart. The telescopic components 3 12 are cylinders or hydraulic cylinders.

[0037] Furthermore, such as Figure 1 and Figure 2 As shown, the movable clamping part 52 on the horizontal assembly plate 2 5 is close to the arrangement box 9 and the end of the movable clamping part 52 is higher than the end of the fixed clamping part 51. An elastic element 53 is connected between the movable clamping part 52 and the fixed clamping part 51. Here, the elastic element 53 is a telescopic spring. The tooling frame 1 is provided with a reciprocating drive assembly 10 that can drive the horizontal mounting plate 4 to move in its length direction so that the movable clamping part 52 on the horizontal assembly plate 2 5 can push the column at the bottom of the arrangement box 9 out of the outlet hole 92 and be positioned between the fixed clamping part 51 and the movable clamping part 52 by the elastic element 53. The reciprocating drive assembly 10 includes a servo motor 101, a lead screw 102 fixedly connected to the output shaft of the servo motor 101, and a lead screw nut 103 sleeved on the lead screw 102. The lead screw 102 is parallel to the length direction of the horizontal mounting plate 4.

[0038] Working principle: The worker places two crossbeams on the corresponding horizontal assembly plates 2, located on the side of the abutment part 21 near the horizontal mounting plate 4. The worker adjusts the spacing between adjacent horizontal assembly plates 5 using the telescopic component 6, according to the required spacing between adjacent columns. The drive motor 82 drives the conveyor belt 7 to rotate. A worker places the columns sequentially on the upper limit part 71 of the conveyor belt 7 near the tooling frame 1 at the end of the conveyor belt 7 away from the tooling frame 1. This causes the columns on the conveyor belt 7 to sequentially enter the arrangement box 9. The servo motor 101 drives the horizontal mounting plate 4 to move away from the arrangement box 9 along its length. The movable clamping part 52 on the horizontal assembly plate 5... The column at the bottom of the arrangement box 9 is hooked and positioned on the horizontal assembly plate 2 5 under the action of the elastic element 53. After all the columns to be installed are placed on the corresponding horizontal assembly plate 2 5, the servo motor 101 stops working. Then, the scale 17 on the horizontal assembly plate 1 2 places the two crossbeams in the accurate position. The two telescopic elements 1 3 work to bring the two horizontal assembly plates 1 2 closer to each other until the two crossbeams clamp all the columns. The whole process only requires one worker, which reduces labor intensity and improves assembly efficiency. Here, the positioning of the columns is carried out synchronously by all the telescopic elements 2 6, which reduces the cumulative error caused by manual operation and improves the accuracy of metal guardrail assembly.

Claims

1. A metal guardrail assembly tool characterized by: The fixture includes a tooling frame (1), two horizontal mounting plates (2) for placing metal guardrail beams, and two telescopic members (3) corresponding to the horizontal mounting plates (2). Each horizontal mounting plate (2) has an abutment portion (21) extending along its length on its upper side. The telescopic rod of the telescopic member (3) is horizontally arranged and perpendicular to the length direction of the horizontal mounting plate (2). A horizontal mounting plate (4) is provided in the middle of the tooling frame (1) between the two horizontal mounting plates (2). The horizontal mounting plate (4) extends along the length direction of the horizontal mounting plates (2) and has several pieces of metal guardrail support on its upper side. The column has a horizontal mounting plate two (5), which is perpendicular to the horizontal mounting plate one (2). Telescopic components two (6) are provided between each pair of adjacent horizontal mounting plates two (5) and between one end of the horizontal mounting plate (4) and one of the horizontal mounting plates two (5) located at one end of the plurality of horizontal mounting plates (4). The telescopic rod of the telescopic component two (6) is parallel to the length direction of the horizontal mounting plate (4). One end of the tooling frame (1) is provided with a horizontal conveyor belt (7) and a power assembly (8) for supporting and driving the conveyor belt (7) to rotate. The conveyor belt (7) runs along the horizontal mounting plate (4). The conveyor belt (7) extends along its length and has several outwardly extending limiting parts (71) spaced apart on its outer surface. An arrangement box (9) for stacking horizontally arranged columns is provided between one end of the conveyor belt (7) near the tooling frame (1) and the horizontal mounting plate (4). The arrangement box (9) has an inlet (91) at its upper end for the columns on the conveyor belt (7) to enter, and an outlet (92) on one side of its lower end that penetrates to the other side. The upper side of the horizontal mounting plate (5) has fixed clamping parts (51) and movable clamping parts (52) spaced apart along the length of the horizontal mounting plate (4). The movable clamping parts... (52) The movable clamping part (52) is close to the arrangement box (9) and its end is higher than the fixed clamping part (51). An elastic element (53) is connected between the movable clamping part (52) and the fixed clamping part (51). The tooling frame (1) is provided with a reciprocating drive assembly (10) that can drive the horizontal mounting plate (4) to move in its length direction so that the movable clamping part (52) on the second horizontal mounting plate (5) can push the column at the bottom of the arrangement box (9) out through the outlet hole (92) and be positioned between the fixed clamping part (51) and the movable clamping part (52) by the elastic element (53).

2. A metal guardrail assembly tool according to claim 1, wherein: The inlet (91), the outlet (92), and the inner cross-section of the arrangement box (9) are all rectangular. The arrangement box (9) is provided with two vertical position adjustment plates (11) that are spaced apart along the length of the horizontal assembly plate (5). The arrangement box (9) is provided with two telescopic parts (12) that correspond one-to-one with the position adjustment plates (11) so that they move closer or further apart.

3. The assembly tool for a metal guardrail according to claim 1, wherein: Each of the horizontal assembly plates (5) is provided with two fixed clamping parts (51) and two movable clamping parts (52), and the two fixed clamping parts (51) and the two movable clamping parts (52) are distributed at intervals along the length of the horizontal assembly plate (5). Each fixed clamping part (51) and the corresponding movable clamping part (52) are provided with an elastic element (53).

4. A metal guardrail assembly tool according to claim 3, wherein: The movable clamping part (52) on the horizontal assembly plate 2 (5) has a guide part (521) extending toward the corresponding fixed clamping part (51) and a guide hole (511) is provided on the corresponding fixed clamping part (51) for the guide part (521) to pass through. The guide hole (511) passes through both sides of the fixed clamping part (51). The elastic member (53) is connected to the lower end of one side of the corresponding fixed clamping part (51) and the lower end of one side of the movable clamping part (52).

5. A metal guardrail assembly tool according to claim 1 or 3 or 4, wherein: The reciprocating drive assembly (10) includes a servo motor (101), a lead screw (102) fixedly connected to the output shaft of the servo motor (101), and a lead screw nut (103) sleeved on the lead screw (102). The lead screw (102) is parallel to the length direction of the horizontal mounting plate (4). Two strip slide rails (13) along the length direction of the horizontal mounting plate (2) are fixed on the tooling frame (1). Two slide blocks (14) corresponding to the strip slide rails (13) are fixed on the lower side of the horizontal mounting plate (4).

6. The assembly tool for a metal guardrail according to claim 1, wherein: The tooling frame (1) is provided with two strip guide rails (15), the strip guide rails (15) are perpendicular to the horizontal assembly plate (2), and the lower ends of the horizontal assembly plate (2) are fixed with sliders (16) that cooperate with the corresponding strip guide rails (15).

7. A metal guardrail assembly tool according to claim 6, wherein: The power assembly (8) includes a frame (81), a drive motor (82) fixed on the frame (81), a drive roller (83) and a driven roller (84). The conveyor belt (7) is sleeved on the drive roller (83) and the driven roller (84). The drive roller (83) and the driven roller (84) are located at both ends of the conveyor belt (7) and their axial directions are perpendicular to the length direction of the conveyor belt (7). The output shaft of the drive motor (82) is parallel to the axial direction of the drive roller (83) and the end of the output shaft of the drive motor (82) is fixedly connected to one end of the drive roller (83).

8. A metal guardrail assembly tool according to claim 7, wherein: The frame (81) is provided with several idlers (85) located inside the conveyor belt (7). The several idlers (85) extend along the axial direction of the drive roller (83) and are evenly spaced side by side in the length direction of the conveyor belt (7).

9. The assembly tool for a metal guardrail according to claim 2, wherein: The first telescopic component (3) is a cylinder or a hydraulic cylinder; the second telescopic component (6) is a cylinder or a hydraulic cylinder; the third telescopic component (12) is a cylinder or a hydraulic cylinder.

10. The assembly tool for a metal guardrail according to claim 1, characterized in that: The horizontal assembly plate (2) is provided with a scale (17) extending along its length.

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