A semi-trailer guardrail production auxiliary device

Abstract

The present invention provides a semi-trailer plate production auxiliary device, including a support assembly, the support assembly is used to support the four corners of a frame; the tops of the two ends of the transverse body plate are respectively vertically provided with a hanging part and a vertical part, a movable part is horizontally movable through the vertical part, and a limiting part is vertically provided on the lower side of the movable part, and a right-angled locking space is formed between the lower side of one end of the movable part close to the hanging part and the inner side of the limiting part; the positioning mechanism is located at the top of the transverse body plate, and the positioning mechanism is located between the hanging part and the locking space, and the positioning mechanism is used for a number of horizontal vertical support round tubes; the guide frame is L-shaped, the bottom of the guide frame is horizontally connected to the transverse body plate, and the top is vertically attached to the inner side of the frame, and a number of guide frames are arranged on both sides of the transverse body plate, and the planes where the two ends of the vertical support round tubes are located are coplanar with the planes where the outer sides of the guide frames are located. The semi-trailer plate production auxiliary device provided by the present invention can achieve better production effects.

Description

Technical Field

[0001] The present invention belongs to the technical field of the production of semi-trailer sideboards, and relates to an auxiliary device for the production of semi-trailer sideboards. Background Art

[0002] The semi-trailer sideboard, also known as the semi-trailer railing, is a sideboard used on the side of the semi-trailer carriage, mainly used to limit the transported objects during transportation. Currently, the common sideboards mainly include a frame (including an outer frame and cross braces), a door core board, and vertical support round tubes. When in use, the door core board is located below, and the vertical support round tubes are located above.

[0003] Currently, during the production of the sideboard, first, the outer frame and cross braces are welded (fully welded), and then the frame is placed horizontally (at this time, the frame presents a square shape with one end open for welding the door core board and the other two ends open for welding the vertical support round tubes). After placing the door core board in the appropriate position in the frame, full spot welding is performed on the back of the door core board, and intermittent welding is performed at both ends. Then, the sideboard is flipped 180 degrees, and full welding is performed on the front of the door core board. Then, the vertical support round tubes are evenly placed in position and spot welded, and full welding is performed on all the vertical support round tubes. Finally, the excess weld points are ground smooth to complete the production of the sideboard.

[0004] The diameter of some of the vertical support round tubes is smaller than the width of the frame. Therefore, during the welding process, not only the position of the vertical support round tubes needs to be placed, but also their height needs to be positioned. Currently, most of them are marked on the frame by workers, and then the height of the vertical support round tubes is manually adjusted. This not only makes the operation more cumbersome, but also easily leads to poor product consistency and poor production effect. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary device for the production of semi-trailer sideboards, aiming to solve the problem of poor production effect.

[0006] To solve the above technical problems, the present invention provides an auxiliary device for the production of semi-trailer sideboards, including:

[0007] A support assembly for supporting the four corners of a frame;

[0008] A horizontal body plate, at the top of both ends of which a suspension part and a vertical part are respectively vertically arranged. The suspension part is in an L shape, and a movable part is horizontally movably arranged through the vertical part. A limiting part is vertically arranged on the lower side of the movable part. A right-angled buckling space is formed between the lower side of the end of the movable part close to the suspension part and the inner side of the limiting part. The buckling space buckles on one side of the frame, and the suspension part buckles on the other side of the frame;

[0009] A positioning mechanism, the positioning mechanism is located at the top of the transverse body plate, and the positioning mechanism is located between the hanging portion and the buckling space, and the positioning mechanism is used for a plurality of horizontal vertical supporting round tubes;

[0010] The guide frame is L-shaped, the bottom of the guide frame is horizontally connected to the transverse body plate, and the top is vertically attached to the inner side of the frame. A plurality of guide frames are arranged on both sides of the transverse body plate, and adjacent guide frames are staggered, and the planes where the two ends of the vertical support circular tube are located are coplanar with the plane where the outer sides of the guide frames are located.

[0011] The present invention is further configured such that a circular arc-shaped guide portion is provided at the top of the guide frame, and the top of the guide portion faces the direction close to the transverse body plate.

[0012] The present invention is further configured such that two support rails are horizontally arranged on the outer side of the vertical part, the cross-sections of the support rails are both U-shaped, the movable part is movably fitted to the inner sides of the two support rails, and a first elastic member in an extended state is arranged between the outer side of the vertical part and the outer end of the movable part.

[0013] The present invention is further configured as follows: a rotating cylinder is horizontally arranged on the top of the movable part, the rotating cylinder is located between the two supporting rails, a rotating column is rotatably arranged on the inner wall of the rotating cylinder, a vertical handle matching with the rotating column is arranged in the middle of the rotating column, a yield groove for the movement of the vertical handle is opened in the middle of the rotating cylinder, a positioning seat is arranged on the top of one of the supporting rails, and when the vertical handle abuts against the outer side of the positioning seat, the locking space and the frame are in a separated state.

[0014] The present invention is further configured such that a U-shaped anti-slip portion opening downward is provided between the outer ends of the two support rails, the rotating cylinder can movably pass through the anti-slip portion, and the anti-slip portion is used to limit the vertical handle.

[0015] The present invention is further configured to be characterized in that it also includes an assembly bottom plate, a termination plate and a positioning plate are relatively arranged on the top of the assembly bottom plate, two U-shaped limiters are arranged on the top of the assembly bottom plate facing each other, and support seats are arranged at the bottoms of both ends of the transverse body plate, and the two support seats are respectively engaged in the two limiters;

[0016] A telescopic rod is arranged to pass through the positioning plate horizontally, a clamping plate is arranged vertically between the inner ends of the two telescopic rods, a second elastic member which is continuously in a compressed state is arranged between the clamping plate and the positioning plate, a termination disk is arranged at the outer end of the telescopic rod, and the clamping plate is located between the positioning plate and the termination plate.

[0017] The present invention is further configured such that an adjustment plate is horizontally arranged on the outer side of the clamping plate, a rolling column is rotatably arranged on the bottom of the adjustment plate, the rolling column movably contacts the top of the assembly bottom plate, an adjustment block is arranged on the free end of the adjustment plate, an inclined adjustment slope is arranged on the top of the adjustment block, and the top of the adjustment slope faces away from the clamping plate;

[0018] A clearance hole for the adjustment block to move through is opened in the middle of the positioning plate, a driving plate is vertically movably passed through the positioning plate, a driving column is rotatably arranged at the bottom of the driving plate, and the driving column movably contacts the adjustment inclined surface.

[0019] The present invention is further configured such that the positioning mechanism comprises a lower clamping plate horizontally arranged on the top of the horizontal body plate, a plurality of lower clamping grooves are horizontally opened on the top of the lower clamping plate, an upper clamping plate is hingedly arranged on one end of the lower clamping plate, a plurality of upper clamping grooves are horizontally opened on the bottom of the upper clamping plate, flexible layers are arranged in the upper clamping grooves and the lower clamping grooves, and each of the upper clamping grooves can clamp one of the vertical support round tubes with one of the lower clamping grooves;

[0020] The top of the lower clamping plate is provided with an arc-shaped arc rod, the top of the arc rod is horizontally provided with a sliding rod, the length direction of the sliding rod is perpendicular to the surface where the motion track of the upper clamping plate is located, and the side of the upper clamping plate is provided with an arc groove, and the end of the sliding rod and the arc rod can move through the arc groove;

[0021] A locking cylinder is movably sleeved on the sliding rod, an operating arm and a locking arm are arranged on the outer wall of the locking cylinder, a locking portion perpendicular to the locking arm is arranged at the free end of the locking arm, when the locking arm is in a vertical state, the bottom of the locking portion abuts against the top of the upper clamping plate, the side of the locking portion abuts against the inner side of the arc rod, and the upper clamping groove and the lower clamping groove respectively clamp the vertical support round tube through the flexible layer.

[0022] The present invention is further configured such that two through holes are provided on the transverse body plate, the positioning mechanism further comprises a unit plate, the top of the unit plate is connected to the bottom of the lower clamping plate, the bottom of the unit plate is provided with two screws matched with the through holes, each of the screws is provided with a first nut, the positioning mechanism is provided with a plurality of units, the unit plates, the screws and the first nuts of different positioning mechanisms are the same, and the upper clamping plates and the lower clamping plates of different positioning mechanisms are different;

[0023] The horizontal part of the guide frame is provided with two holes, each hole is provided with a bolt, and each bolt is provided with a second nut. The cross body plate is provided with a long strip hole, each of the long strip holes has two bolts passing through, and the sides of the bolts are in contact with the inner wall of the long strip hole. The maximum distance between the two bolts is less than the length of the long strip hole. The guide frame is fixedly connected to the cross body plate by the bolts and the second nuts, and there is a set distance between the bottom of the frame and the top of the cross body plate.

[0024] The present invention is further configured such that the support assembly includes four support plates, and the four support plates are located below the four corners of the frame.

[0025] Compared with the prior art, the present invention provides a semi-trailer guardrail production auxiliary device. Before welding the vertical support round tubes to the frame (the door core plate has been welded to the frame before), firstly, a set number of vertical support round tubes are horizontally fixed by a positioning mechanism, so that the vertical support round tubes and the transverse body plate maintain a fixed relative position; then, the movable part is moved outward so that the distance between the free end of the movable part and the inner end of the hanging part is greater than the width of the frame; after the transverse body plate passes through the frame from below, the frame is raised upward, and during the raising process, the outer side of the vertical part of the guide frame is movable and fitted on the inner side of the frame, until the lower side of the bent part of the hanging part and the lower side of the movable part are higher than the frame, and then the entire transverse body plate is moved toward the vertical part to buckle the hanging part It is closed on one side of the frame (the inner side of the vertical part of the hanging part also contacts the outer side of the frame), and then the movable part is moved toward the hanging part until the inner side of the limiting part contacts the outer side of the frame, that is, the locking space at this time is also locked on the side of the frame, and the horizontal body plate is now locked on the frame through the hanging part, the movable part and the limiting part; since the shape of the hanging part is fixed, the positioning mechanism is also fixed to the vertical support round tube, so when the position of the horizontal body plate is fixed with the position of the frame, all the vertical support round tubes can reach the specified position with the frame; then the vertical support round tubes are spot welded to make the vertical support round tubes temporarily stable with the frame; finally, after the positioning mechanism is separated from the vertical support round tubes, the horizontal body plate is separated from the frame, and finally the vertical support round tubes are fully welded.

[0026] The ends of the vertical support round tubes are coplanar with the outer side of the guide frame, and the outer side of the guide frame is movably fitted to the inner side of the frame. Therefore, the vertical support round tubes can enter the frame normally and can be stably welded to the frame. At the same time, while some workers are welding the door core panels, other workers can fix the corresponding vertical support round tubes to the horizontal body panels through the positioning mechanism, thereby improving the overall production efficiency of the railings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1The structure diagram of an embodiment of a semi-trailer guardrail production auxiliary device of the present invention is Figure 1 ;

[0028] Figure 2 yes Figure 1 A magnified view of part A;

[0029] Figure 3 yes Figure 1 A magnified view of part B;

[0030] Figure 4 yes Figure 1 Enlarged view of part C;

[0031] Figure 5 The structure diagram of an embodiment of a semi-trailer guardrail production auxiliary device of the present invention is Figure 2 ;

[0032] Figure 6 yes Figure 5 A magnified view of part D in the middle;

[0033] Figure 7 It is a schematic diagram of an embodiment of an upper clamping plate and a lower clamping plate part of a semi-trailer guardrail production auxiliary device of the present invention;

[0034] Figure 8 yes Figure 7 Enlarged view of part E in the middle;

[0035] Fig. 9 It is a schematic diagram of an embodiment of a semi-trailer guardrail production auxiliary device of the present invention when fixing a vertical support round pipe;

[0036] Fig.10 It is a cross-sectional view of an embodiment of a semi-trailer guardrail production auxiliary device of the present invention when fixing a vertical support round pipe;

[0037] Fig.11 yes Fig.10 Enlarged view of part F.

[0038] Among them, 1. frame; 2. horizontal body plate; 3. hanging part; 4. vertical part; 5. movable part; 6. limiting part; 7. vertical supporting round tube; 8. guide frame; 9. guide part; 10. support rail; 11. first elastic member; 12. rotating cylinder; 12a, rotating column; 13. vertical handle; 14. clearance groove; 15. positioning seat; 16. anti-slip part; 17. assembly bottom plate; 18. termination plate; 19. positioning plate; 20. limiting member; 21. support seat; 22. telescopic rod; 23. pressing plate; 24. second elastic member; 25. termination plate ; 26. Adjustment plate; 27. Rolling column; 28. Adjustment block; 29. ​​Adjustment slope; 30. Clearance hole; 31. Drive plate; 32. Drive column; 33. Lower clamping plate; 34. Lower clamping groove; 35. Upper clamping plate; 36. Upper clamping groove; 37. Arc rod; 38. Sliding rod; 39. Arc groove; 40. Locking cylinder; 41. Operating arm; 42. Locking arm; 43. Locking part; 44. Unit plate; 45. Screw; 46. First nut; 47. Bolt; 48. Second nut; 49. Long hole; 50. Support plate. DETAILED DESCRIPTION

[0039] The following is a further detailed description of a semi-trailer guardrail production auxiliary device proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. The same or similar figure numbers in the accompanying drawings represent the same or similar parts.

[0040] A semi-trailer guardrail production auxiliary device, such as Figures 1 to 11 As shown, including:

[0041] A support assembly, the support assembly is used to support four corners of a frame 1;

[0042] A transverse body plate 2, the tops of both ends of the transverse body plate 2 are respectively vertically provided with a hanging part 3 and a vertical part 4, the hanging part 3 is L-shaped and horizontally movable, and a movable part 5 is provided through the vertical part 4, and a limiting part 6 is vertically provided on the lower side of the movable part 5, and a right-angled snap-fitting space is formed between the lower side of one end of the movable part 5 close to the hanging part 3 and the inner side of the limiting part 6, and the snap-fitting space is snap-fitted to one side of the frame 1, and the hanging part 3 is snap-fitted to the other side of the frame 1;

[0043] A positioning mechanism, the positioning mechanism is located at the top of the horizontal body plate 2, and the positioning mechanism is located between the hanging portion 3 and the buckling space, and the positioning mechanism is used for a plurality of horizontal vertical support round tubes 7, wherein the frame 1 and the vertical support round tubes 7 are not within the scope of protection claimed in the present application, and are only introduced here for auxiliary explanation;

[0044] The guide frame 8 is L-shaped, the bottom of the guide frame 8 is horizontally connected to the transverse body plate 2, and the top is vertically attached to the inner side of the frame 1. A plurality of guide frames 8 are arranged on both sides of the transverse body plate 2 and adjacent guide frames 8 are staggered. The planes where the two ends of the vertical support circular tube 7 are located are coplanar with the planes where the outer sides of the guide frames 8 are located.

[0045] An arc-shaped guide portion 9 is disposed on the top of the guide frame 8 , and the top of the guide portion 9 faces the direction close to the transverse body plate 2 .

[0046] Two support rails 10 are horizontally arranged on the outer side of the vertical portion 4, and the cross-section of the support rails 10 is U-shaped. The movable portion 5 is movably fitted to the inner sides of the two support rails 10, and a first elastic member 11 in an extended state is arranged between the outer side of the vertical portion 4 and the outer end of the movable portion 5.

[0047] A rotating cylinder 12 is horizontally arranged at the top of the movable part 5, and the rotating cylinder 12 is located between the two supporting rails 10. A rotating column 12a is rotatably arranged on the inner wall of the rotating cylinder 12. A vertical handle 13 matched with the rotating column 12a is arranged in the middle of the rotating column 12a. A yield groove 14 for the movement of the vertical handle 13 is opened in the middle of the rotating cylinder 12. A positioning seat 15 is arranged on the top of the supporting rail 10. When the vertical handle 13 abuts against the outer side of the positioning seat 15, the locking space and the frame 1 are in a separated state.

[0048] A U-shaped anti-slip portion 16 opening downward is provided between the outer ends of the two support rails 10 , and the rotating cylinder 12 can movably pass through the anti-slip portion 16 , and the anti-slip portion 16 is used to limit the vertical handle 13 .

[0049] It also includes an assembly bottom plate 17, a stop plate 18 and a positioning plate 19 are arranged on the top of the assembly bottom plate 17, two U-shaped limiters 20 are arranged on the top of the assembly bottom plate 17, and support seats 21 are arranged on the bottoms of both ends of the transverse body plate 2, and the two support seats 21 are respectively engaged in the two limiters 20;

[0050] A telescopic rod 22 is provided to horizontally move through the positioning plate 19, a clamping plate 23 is vertically provided between the inner ends of the two telescopic rods 22, a second elastic member 24 which is continuously in a compressed state is provided between the clamping plate 23 and the positioning plate 19, a termination plate 25 is provided at the outer end of the telescopic rod 22, and the clamping plate 23 is located between the positioning plate 19 and the termination plate 18.

[0051] An adjustment plate 26 is horizontally arranged on the outer side of the clamping plate 23, a rolling column 27 is rotatably arranged at the bottom of the adjustment plate 26, and the rolling column 27 movably contacts the top of the assembly bottom plate 17, and an adjustment block 28 is arranged at the free end of the adjustment plate 26, and an inclined adjustment slope 29 is arranged on the top of the adjustment block 28, and the top of the adjustment slope 29 faces away from the clamping plate 23;

[0052] A clearance hole 30 is provided in the middle of the positioning plate 19 for the adjustment block 28 to move through. A driving plate 31 is vertically arranged to move through the positioning plate 19 . A driving column 32 is rotatably arranged at the bottom of the driving plate 31 . The driving column 32 movably contacts the adjustment inclined surface 29 .

[0053] The positioning mechanism comprises a lower clamping plate 33 horizontally arranged on the top of the horizontal body plate 2, a plurality of lower clamping grooves 34 are horizontally opened on the top of the lower clamping plate 33, an upper clamping plate 35 is hingedly arranged at one end of the lower clamping plate 33, a plurality of upper clamping grooves 36 are horizontally opened on the bottom of the upper clamping plate 35, and flexible layers are arranged in the upper clamping grooves 36 and the lower clamping grooves 34, and each of the upper clamping grooves 36 can clamp one of the vertical support round tubes 7 with one of the lower clamping grooves 34;

[0054] The top of the lower clamping plate 33 is provided with an arc-shaped arc rod 37, and the top of the arc rod 37 is horizontally provided with a sliding rod 38, and the length direction of the sliding rod 38 is perpendicular to the surface where the movement track of the upper clamping plate 35 is located, and the side of the upper clamping plate 35 is provided with an arc groove 39, and the end of the sliding rod 38 and the arc rod 37 can move through the arc groove 39;

[0055] A locking cylinder 40 is movably sleeved on the sliding rod 38, and an operating arm 41 and a locking arm 42 are provided on the outer wall of the locking cylinder 40. A locking portion 43 perpendicular to the locking arm 42 is provided at the free end of the locking arm 42. When the locking arm 42 is in a vertical state, the bottom of the locking portion 43 abuts against the top of the upper clamping plate 35, and the side of the locking portion 43 abuts against the inner side of the arc rod 37, and the upper clamping groove 36 and the lower clamping groove 34 respectively clamp the vertical support tube 7 through the flexible layer.

[0056] The transverse plate 2 is provided with two through holes, and the positioning mechanism further includes a unit plate 44, the top of the unit plate 44 is connected to the bottom of the lower clamping plate 33, and the bottom of the unit plate 44 is provided with two screws 45 matched with the through holes, and each of the screws 45 is provided with a first nut 46, and the positioning mechanism is provided with a plurality of units, and the unit plates 44, the screws 45 and the first nuts 46 of different positioning mechanisms are the same, and the upper clamping plates 35 and the lower clamping plates 33 of different positioning mechanisms are different;

[0057] The horizontal part of the guide frame 8 is provided with two holes, each of which is provided with a bolt 47, and each of the bolts 47 is provided with a second nut 48. The cross body plate 2 is provided with a long strip hole 49, and each of the long strip holes 49 has two bolts 47 passing through it. The sides of the bolts 47 are in contact with the inner wall of the long hole 49, and the maximum distance between the two bolts 47 is less than the length of the long hole 49. The guide frame 8 is fixedly connected to the cross body plate 2 by the bolts 47 and the second nuts 48, and there is a set distance between the bottom of the frame 1 and the top of the cross body plate 2.

[0058] The support assembly includes four support plates 50 , and the four support plates 50 are located below the four corners of the frame 1 .

[0059] The present invention provides a semi-trailer guardrail production auxiliary device. Before welding the vertical support round tube 7 to the frame 1 (the door core plate has been welded to the frame 1 before), firstly, a set number of vertical support round tubes 7 are horizontally fixed by a positioning mechanism, so that the vertical support round tubes 7 and the transverse body plate 2 maintain a relatively fixed state; then the movable part 5 is moved outward, so that the distance between the free end of the movable part 5 and the inner end of the hanging part 3 is greater than the width of the frame 1; after the transverse body plate 2 passes through the frame 1 from below, the frame 1 is raised upward, and during the raising process, the outer side of the vertical part 4 of the guide frame 8 is movable and fitted on the inner side of the frame 1, until the lower side of the bent part of the hanging part 3 and the lower side of the movable part 5 are higher than the frame 1, and then the entire transverse body plate 2 is moved toward the vertical part 4, and the hanging part 3 is buckled on the frame 1. One side (the inner side of the vertical part 4 of the hanging part 3 also contacts the outer side of the frame 1), and then move the movable part 5 toward the hanging part 3 until the inner side of the limiting part 6 contacts the outer side of the frame 1, that is, the locking space at this time is also locked on the side of the frame 1, and the transverse body plate 2 is now locked on the frame 1 through the hanging part 3, the movable part 5 and the limiting part 6; since the shape of the hanging part 3 is fixed, the positioning mechanism is also fixed to the vertical support circular tube 7, so when the position of the transverse body plate 2 is fixed to the position of the frame 1, all the vertical support circular tubes 7 can reach the specified position with the frame 1; then the vertical support circular tubes 7 are spot welded to make the vertical support circular tubes 7 temporarily stable with the frame 1; finally, after the positioning mechanism is separated from the vertical support circular tubes 7, the transverse body plate 2 is separated from the frame 1, and finally the vertical support circular tubes 7 are fully welded.

[0060] The end of the vertical support round tube 7 is coplanar with the outer side of the guide frame 8, and the outer side of the guide frame 8 is movably fitted on the inner side of the frame 1, so the vertical support round tube 7 can normally enter the frame 1 and can be stably welded with the frame 1; at the same time, while some workers are welding the door core panel, other workers can fix the corresponding vertical support round tube 7 to the horizontal body panel 2 through the positioning mechanism, thereby also being able to improve the overall production efficiency of the railing.

[0061] When fixing the vertical support round tube 7 to the positioning mechanism, the worker first engages the two support seats 21 at the bottom of the horizontal body plate 2 downward (the support seats 21 are fixedly connected to the assembly bottom plate 17 by bolts 47, so that the position of the support seats 21 on the support bottom plate can be adjusted, so that it can be suitable for the production of different guardrails) into the stopper 20, so that the position of the horizontal body plate 2 can be ensured;

[0062] Then, the driving plate 31 is pressed downward, and after the driving column 32 acts on the adjusting inclined surface 29, the clamping plate 23 can be driven outward, so that the distance between the clamping plate 23 and the end plate 18 is greater than the length of the vertical support tube 7; then the vertical support tube 7 is placed flat in the lower clamping groove 34, and when all the vertical support tubes 7 are placed, the driving plate 31 is released, and at this time, under the elastic force of the second elastic member 24, the clamping plate 23 moves toward the end plate 18; finally, the clamping plate 23 and the end plate 18 are pressed against the two ends of the vertical support tube 7, and at the same time, the clamping plate 23 and the end plate 18 also contact the outer sides of the guide frames 8 on both sides;

[0063] Then, the upper clamping plate 35 is rotated downward, and the upper clamping plate 35 and the lower clamping plate 33 clamp several vertical support round tubes 7 through the upper clamping groove 36 and the lower clamping groove 34 respectively; the flexible layer has a certain deformability, so although the upper clamping plate 35 is not vertically lifted, it can also clamp the vertical support round tube 7 after the flexible layer (with a certain thickness) undergoes elastic deformation; secondly, the flexible layer is preferably made of materials such as silicone or rubber, so that the position stability of the vertical support round tube 7 can be improved, and even if it collides with other structures during the movement, the position stability of the vertical support round tube 7 can be well maintained;

[0064] When the upper clamping plate 35 is horizontal, the operating arm 41 is moved toward the upper clamping plate 35, which drives the locking cylinder 40 to move toward the arc rod 37 until it contacts the arc rod 37; then the operating arm 41 is rotated downward, and the operating arm 41 drives the locking arm 42 to rotate through the locking cylinder 40; when the locking portion 43 just contacts the upper side of the upper clamping plate 35, the upper clamping plate 35 and the lower clamping plate 33 have not yet clamped the vertical support tube 7; then the operating arm 41 is continued to be rotated, and the operating portion further presses the upper clamping plate 35 downward until the locking portion 43 just contacts the upper side of the upper clamping plate 35. When the locking arm 42 reaches the vertical state, the upper clamping plate 35 and the lower clamping plate 33 are just sufficient to clamp the vertical support round tube 7; since the locking arm 42 is in a vertical state at this time, and the reaction force it receives from the upper clamping plate 35 is also upward, the locking arm 42 has a relatively high stability. Not only that, the arc rod 37 can also further limit the locking portion 43, thereby further improving the position stability of the locking arm 42, while also ensuring the clamping stability of the upper clamping plate 35 and the lower clamping plate 33 on the vertical support round tube 7.

[0065] Finally, after pressing down the driving plate 31, the cross body plate 2 is removed from the assembly base plate 17; when the guide frame 8 is inserted into the frame 1 from bottom to top, the guide part 9 on the top can play a guiding and guiding role, so that even if the guide frame 8 is not well aligned with the frame 1, it can reach the appropriate position through the guiding effect of the guide part 9.

[0066] In the process of lifting the horizontal body plate 2 upward, the vertical handle 13 needs to be pulled outward first, and the vertical handle 13 drives the movable part 5 to move outward through the rotating cylinder 12. After the vertical handle 13 reaches the outer side of the positioning seat 15, the vertical handle 13 is rotated downward so that the vertical handle 13 abuts against the outer side of the positioning seat 15. At this time, the position of the movable part 5 is fixed;

[0067] After the transverse body plate 2 is raised to a suitable position and the hanging part 3 is buckled into one side of the frame 1, the vertical handle 13 is turned upward. At this time, the movable part 5 moves toward the middle of the frame 1 under the pulling force of the first elastic member 11 until the limiting part 6 abuts against the outer side of the frame 1. At this time, the position of the transverse body plate 2 can be fixed. At the same time, due to the presence of the first elastic member 11, the transverse body plate 2 can be stably suspended on the frame 1, thereby ensuring the stability of the welded vertical support round tube 7.

[0068] When all the vertical support round tubes 7 are spot welded, the operating arm 41 is rotated in the opposite direction to separate the locking part 43 from the upper clamping plate 35, and then the operating arm 41 is moved outward so that the locking part 43, the locking arm 42 and the operating arm 41 do not affect the rotation of the upper clamping plate 35, and then the upper clamping plate 35 is rotated upward, and then the movable part 5 is moved in the opposite direction to separate the horizontal body plate 2 from the frame 1, which is simple and convenient. The end of the sliding rod 38 has a limiting disk to prevent the locking cylinder 40 from sliding off.

[0069] When welding different frames 1, it may be necessary to fix vertical support round tubes 7 of different lengths, diameters, heights and spacings. At this time, different positioning mechanisms need to be replaced; the unit plates 44, screws 45 and first nuts 46 of different positioning mechanisms are all the same, so that even if there are differences in different upper clamping plates 35, lower clamping plates 33, etc., they can all be used in conjunction with the transverse body plate 2, hanging part 3, vertical part 4, etc., so that the cost of use can be lower; secondly, since the bottom of the transverse body plate 2 is lower than the bottom of the frame 1, even if vertical support round tubes 7 with different height requirements are used, there is room for change.

[0070] At the same time, the distances on the inner sides of different frames 1 are different. At this time, you only need to loosen the bolt 47 and the second nut 48, adjust the position of the guide frame 8 toward the outside or inside, and tighten the second nut 48 and the bolt 47 after the guide frame 8 is in a suitable position; since both sides of the bolt 47 are limited by the long hole 49, the bottom of the guide frame 8 always remains vertical to the cross body plate 2.

[0071] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A semi-trailer guardrail production auxiliary device, characterized in that: include: A support assembly, the support assembly being used to support four corners of a frame (1); A transverse body plate (2), wherein the tops of both ends of the transverse body plate (2) are respectively vertically provided with a hanging portion (3) and a vertical portion (4), the hanging portion (3) is L-shaped, and a movable portion (5) is horizontally movable and passes through the vertical portion (4), and a limiting portion (6) is vertically provided on the lower side of the movable portion (5), and a right-angled locking space is formed between the lower side of one end of the movable portion (5) close to the hanging portion (3) and the inner side of the limiting portion (6), and the locking space is locked to one side of the frame (1), and the hanging portion (3) is locked to the other side of the frame (1); A positioning mechanism, the positioning mechanism is located at the top of the transverse body plate (2), and the positioning mechanism is located between the hanging portion (3) and the buckling space, and the positioning mechanism is used for a plurality of horizontal vertical supporting circular tubes (7); A guide frame (8), the guide frame (8) is L-shaped, the bottom of the guide frame (8) is horizontally connected to the transverse body plate (2), and the top is vertically attached to the inner side of the frame (1), a plurality of guide frames (8) are arranged on both sides of the transverse body plate (2), and adjacent guide frames (8) are staggered, and the planes where the two ends of the vertical support circular tube (7) are located are coplanar with the planes where the outer sides of the guide frames (8) are located; The positioning mechanism comprises a lower clamping plate (33) horizontally arranged on the top of the transverse body plate (2), a plurality of lower clamping grooves (34) are horizontally opened on the top of the lower clamping plate (33), an upper clamping plate (35) is hingedly arranged at one end of the lower clamping plate (33), a plurality of upper clamping grooves (36) are horizontally opened on the bottom of the upper clamping plate (35), flexible layers are arranged in the upper clamping grooves (36) and the lower clamping grooves (34), and each of the upper clamping grooves (36) can clamp one of the vertical support round tubes (7) with one of the lower clamping grooves (34); A circular arc-shaped arc rod (37) is arranged on the top of the lower clamping plate (33), a sliding rod (38) is arranged horizontally on the top of the arc rod (37), the length direction of the sliding rod (38) is perpendicular to the surface where the movement track of the upper clamping plate (35) is located, and an arc groove (39) is opened on the side of the upper clamping plate (35), and the end of the sliding rod (38) and the arc rod (37) can move through the arc groove (39); A locking cylinder (40) is movably sleeved on the sliding rod (38), and an operating arm (41) and a locking arm (42) are arranged on the outer wall of the locking cylinder (40). A locking portion (43) perpendicular to the locking arm (42) is arranged at the free end of the locking arm (42). When the locking arm (42) is in a vertical state, the bottom of the locking portion (43) abuts against the top of the upper clamping plate (35), and the side of the locking portion (43) abuts against the inner side of the arc rod (37), and the upper clamping groove (36) and the lower clamping groove (34) respectively clamp the vertical support tube (7) through the flexible layer.

2. A semi-trailer guardrail production auxiliary device according to claim 1, characterized in that: A circular arc-shaped guide portion (9) is provided at the top of the guide frame (8), and the top of the guide portion (9) faces the direction close to the transverse body plate (2).

3. A semi-trailer guardrail production auxiliary device according to claim 2, characterized in that: Two support rails (10) are horizontally arranged on the outer side of the vertical portion (4), and the cross-sections of the support rails (10) are both U-shaped. The movable portion (5) is movably fitted to the inner sides of the two support rails (10), and a first elastic member (11) in an extended state is arranged between the outer side of the vertical portion (4) and the outer end of the movable portion (5).

4. A semi-trailer guardrail production auxiliary device according to claim 3, characterized in that: A rotating cylinder (12) is horizontally arranged at the top of the movable part (5), and the rotating cylinder (12) is located between the two supporting rails (10). A rotating column (12a) is rotatably arranged on the inner wall of the rotating cylinder (12), and a vertical handle (13) matched with the rotating column (12a) is arranged in the middle of the rotating column (12a). A clearance groove (14) for the movement of the vertical handle (13) is opened in the middle of the rotating cylinder (12), and a positioning seat (15) is arranged at the top of the supporting rail (10). When the vertical handle (13) contacts the outer side of the positioning seat (15), the locking space and the frame (1) are in a separated state.

5. A semi-trailer guardrail production auxiliary device according to claim 4, characterized in that: A U-shaped anti-slip portion (16) opening downward is provided between the outer ends of the two support rails (10); the rotating cylinder (12) can movably pass through the anti-slip portion (16); and the anti-slip portion (16) is used to limit the vertical handle (13).

6. A semitrailer dam production auxiliary device according to any one of claims 1 to 5, characterized in that: It also includes an assembly bottom plate (17), a stop plate (18) and a positioning plate (19) are arranged opposite to each other on the top of the assembly bottom plate (17), two U-shaped limiting members (20) are arranged opposite to each other on the top of the assembly bottom plate (17), and support seats (21) are arranged at the bottoms of both ends of the transverse body plate (2), and the two support seats (21) are respectively engaged in the two limiting members (20); A telescopic rod (22) is provided to move horizontally through the positioning plate (19), a clamping plate (23) is vertically provided between the inner ends of the two telescopic rods (22), a second elastic member (24) which is continuously in a compressed state is provided between the clamping plate (23) and the positioning plate (19), a terminating plate (25) is provided at the outer end of the telescopic rod (22), and the clamping plate (23) is located between the positioning plate (19) and the terminating plate (18).

7. A semi-trailer dam production auxiliary device according to claim 6, characterized in that: An adjustment plate (26) is horizontally arranged on the outer side of the clamping plate (23), a rolling column (27) is rotatably arranged at the bottom of the adjustment plate (26), the rolling column (27) movably contacts the top of the assembly bottom plate (17), an adjustment block (28) is arranged at the free end of the adjustment plate (26), an inclined adjustment slope (29) is arranged at the top of the adjustment block (28), and the top of the adjustment slope (29) faces away from the clamping plate (23); A clearance hole (30) for the adjustment block (28) to movably pass through is provided in the middle of the positioning plate (19), a driving plate (31) is vertically movably passed through the positioning plate (19), a driving column (32) is rotatably provided at the bottom of the driving plate (31), and the driving column (32) movably contacts the adjustment inclined surface (29).

8. The semi-trailer guardrail production auxiliary device according to claim 1, characterized in that: The transverse plate (2) is provided with two through holes, and the positioning mechanism also includes a unit plate (44), the top of the unit plate (44) is connected to the bottom of the lower clamping plate (33), and the bottom of the unit plate (44) is provided with two screws (45) matched with the through holes, and each of the screws (45) is provided with a first nut (46). There are a plurality of positioning mechanisms, and the unit plates (44), the screws (45) and the first nuts (46) of different positioning mechanisms are the same, and the upper clamping plates (35) and the lower clamping plates (33) of different positioning mechanisms are different; The horizontal part of the guide frame (8) is provided with two holes, each hole is provided with a bolt (47), and each bolt (47) is provided with a second nut (48). The transverse body plate (2) is provided with an elongated strip hole (49), and each elongated strip hole (49) has two bolts (47) passing through it. The side parts of the bolts (47) are in contact with the inner wall of the elongated hole (49), and the maximum distance between the two bolts (47) is less than the length of the elongated hole (49). The guide frame (8) and the transverse body plate (2) are fixedly connected by the bolts (47) and the second nuts (48), and there is a set distance between the bottom of the frame (1) and the top of the transverse body plate (2).

9. The semi-trailer guardrail production auxiliary device according to claim 1, characterized in that: The support assembly comprises four support plates (50), and the four support plates (50) are located below the four corners of the frame (1).

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