Welding tool for square tube of trailer

Abstract

The utility model discloses a trailer square tube welding tool, and belongs to the field of trailer lever welding tools. Comprising a tool body, a telescopic device, an ejector rod and a pressing block, the telescopic device is fixedly installed on the tool body, the ejector rod is installed on the telescopic device, and the pressing block is fixedly installed at the top end of the ejector rod. The tool body comprises a positioner and a supporting frame, the positioner comprises a cross beam, rotating discs, fixing boxes, a motor and a rotating shaft, the two fixing boxes are connected with the two rotating discs respectively, the motor is installed in one fixing box and connected with the rotating discs, the rotating shaft is arranged on the other fixing box and connected with the rotating discs, and the cross beam is horizontally arranged between the two rotating discs. The square opening sleeve of the square pipe can be welded at a time, the adopted telescopic device, the ejector rod and the pressing block are matched to fix the square pipe, the square pipe can be rapidly clamped, the length of the ejector rod of the air cylinder can be adjusted, and therefore the square pipes with different lengths can be welded. The positioner can enable the welding manipulator to weld the square pipe in multiple angles and in different directions, and the welding manipulator is convenient and attractive.

Description

Technical Field

[0001] The invention discloses a trailer square tube welding tool, belonging to the field of trailer bar welding tool. Background Art

[0002] The trailer bar is a commonly used auto part. It is an important part used to connect the towed vehicle and the tractor, and is used to tow or pull the vehicle to the destination. There are many types of trailer bars on the market. The first step to using a trailer bar is to choose a suitable trailer bar. Before using the trailer bar, the front or rear of the towed vehicle needs to be connected to the trailer bar. When connecting, ensure that the connection between the trailer bar and the vehicle is firm to avoid falling off during driving. This requires the key part of the trailer bar connecting the vehicle to be precisely sized.

[0003] The square tube welded by the utility model is one of the important parts for connecting the trailer bar with the vehicle. The square tube sleeve at the end of the square tube is welded in a whole circle. The fixed fixture of the existing welding tool is located on the side of the square tube, and force is applied from top to bottom to achieve the clamping effect. In actual use, the fixed fixture will interfere with the continuity of the welding gun during the welding process, and the welding cannot be completed in one time. The existing welding tool must be welded in two or more times to complete the entire circle of the square tube sleeve, which not only affects the welding efficiency, but also affects the appearance of the weld due to the poor transition at the welding joint. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a trailer square tube welding tool which can weld the square tubes at one time.

[0005] The utility model adopts the technical scheme to solve the technical problem as follows: a trailer square tube welding tool comprises a tool body, a telescopic device, a push rod and a pressure block, the telescopic device is fixedly installed on the tool body, the push rod is installed on the telescopic device, and the pressure block is fixedly installed on the top of the push rod.

[0006] Preferably, the push rod is formed by threaded connection of an internal threaded rod and an external threaded rod.

[0007] Preferably, the tooling body comprises a positioner and a support frame, the positioner is provided with the support frame, and the telescopic device is fixed on the support frame.

[0008] Preferably, the positioner is provided with at least two support frames arranged at intervals, and each support frame is provided with a telescopic device.

[0009] Preferably, the positioner includes a crossbeam, a rotating disk, a fixed box, a motor and a rotating shaft. The two fixed boxes are respectively connected to a rotating disk. The motor is installed in one fixed box and connected to the rotating disk. The rotating shaft is provided on the other fixed box to connect the rotating disk. The crossbeam is horizontally arranged between the two rotating disks.

[0010] Preferably, the support frame includes a support frame top plate and a support column, the support column is fixed on the positioner, the support frame top plate is fixed on the support column, the telescopic device is fixed on the lower side of the support frame top plate, and a circular hole for the top rod to pass through is provided on the support frame top plate, and the top rod passes through the circular hole to connect to the telescopic device.

[0011] Preferably, a boss for fixing the square tube sleeve is provided on the top plate of the support frame, and a round hole for the push rod to pass through is provided on the boss.

[0012] Preferably, the telescopic device includes a cylinder, an air circuit switch and an air inlet pipeline, the cylinder is fixed on the tooling body, the air circuit switch is installed on one side of the tooling body, and the air inlet pipeline connects the cylinder and the air circuit switch.

[0013] Preferably, the cylinder is fixed to the lower side of the top plate of the support frame.

[0014] Preferably, the side of the pressing block has a square tube pressing angle, and an avoidance groove is provided on the pressing block below the square tube pressing angle.

[0015] Compared with the prior art, the technical solution has the following beneficial effects:

[0016] The utility model adopts a trailer square tube welding tool, which can weld the square mouth sleeve of the square tube in one go, which not only improves the welding efficiency, but also makes the welding joint very beautiful due to continuous welding. The utility model adopts a telescopic device, a push rod and a pressure block to fix the square tube, which can not only quickly clamp the square tube, but also adjust the length of the cylinder push rod, so as to weld square tubes of different lengths. The positioner can enable the welding manipulator to weld the square tube at multiple angles and different directions, which is convenient and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a trailer square tube welding tool.

[0018] Figure 2 for Figure 1 A partial enlarged view of point A.

[0019] Figure 3 It is a schematic diagram of the utility model together with the product square tube.

[0020] Figure 4 This is a schematic diagram of the structure in which the pressing block of the utility model is installed on the push rod.

[0021] Figure 5 It is a schematic diagram of the square tube of the welding product of the utility model.

[0022] Figure 6 It is an exploded schematic diagram of the square tube of the welding product of the utility model.

[0023] Among them: 1. tooling body 2. square tube 3. push rod 301. internal threaded rod 302. external threaded rod 4. pressing block 5. positioner 6. rotating disk 7. fixed box 8. square tube pressing angle 9. rotating shaft 10. support frame 101. support frame top plate 102. support column 11. boss 12. cylinder 13. air circuit switch 14. air intake pipeline 15. pressure gauge 16. square tube sleeve 17. tube barrel 18. fixed plate 19. avoidance groove 20. cross beam. DETAILED DESCRIPTION

[0024] Figures 1 to 6 It is the best embodiment of the utility model, and the following Figures 1 to 6 The utility model is further described.

[0025] Reference Figures 1 to 3 The trailer square tube welding tool comprises a tool body 1, a telescopic device, a push rod 3 and a pressing block 4. The telescopic device is fixedly mounted on the tool body 1, the push rod 3 is mounted on the telescopic device, and the pressing block 4 is fixedly mounted on the top of the push rod 3.

[0026] The tooling body 1 includes a positioner 5 and a support frame 10. The positioner 5 includes a crossbeam 20, a rotating disk 6, a fixed box 7, a motor and a rotating shaft 9. The two fixed boxes 7 are relatively fixed on the bottom plate. The crossbeam 20 is arranged between the two fixed boxes 7. The two ends of the crossbeam 20 are respectively fixed on a rotating disk 6. The upper circle and lower part of the rotating disk 6 are provided with a protruding fixed plate 18 on the square half side. The crossbeam 20 is fixed on the fixed plate 18. One of the rotating disks 6 is connected to the motor fixed in the fixed box 7. In this embodiment, a servo motor is used. A control box for controlling the motor is installed on the fixed box 7. The other rotating disk 6 is connected to two rotatable rotating shafts 9 installed on the fixed box 7. The motor drives the two rotating disks 6 to rotate. The crossbeam 20 fixed on the rotating disk 6 can realize 360° rotation to meet the welding requirements of the welding manipulator in different directions.

[0027] Support frames 10 are arranged at intervals on the cross beam 20 of the positioner 5, and the support frames 10 include a support frame top plate 101 and a plurality of support columns 102. In this embodiment, two support frames 10 are arranged on the positioner 5, and the number of support columns 102 of the support frames 10 is 4. A boss 11 for fixing the square tube sleeve 16 is arranged on the support frame top plate 101, and a round hole for the mandrel 3 to pass through is arranged on the support frame top plate 101 and the boss 11.

[0028] In this embodiment, there are two telescopic devices fixed on the support frame 10, the telescopic devices include a cylinder 12, an air circuit switch 13, and an air intake pipeline 14. The cylinder 12 is fixed on the lower side of the support frame top plate 101, and the push rod 3 passes through the circular hole of the support frame 10 and is connected to the cylinder 12. The push rod 3 is formed by threading an internal threaded rod 301 and an external threaded rod 302, and its length can be adjusted.

[0029] Reference Figure 4 The pressing block 4 is a square block with a threaded hole in the middle, a square tube pressure angle 8 on the side, and an avoidance groove 19 on the lower side of the square tube pressure angle 8. It is threadedly connected with the push rod 3 and fixed on the top of the push rod 3. When the square tube sleeve 16 and the tube barrel 17 pass through the pressing block 4 and are installed on the support frame 10, the pressing block 4 is rotated so that the avoidance groove 19 clamps the upper four sides of the tube barrel 17. A nut is set on the pressing block 4, and the nut is tightened to strengthen the fixation.

[0030] The gas circuit switch 13 is installed on the positioner 5, close to the cylinder 12, the air intake pipe 14 connects the gas circuit switch 13 and the cylinder 12, and a pressure gauge 15 is arranged on the air intake pipe 14. In this embodiment, two cylinders 12 and two gas circuit switches 13 are arranged corresponding to the support frame 10 respectively.

[0031] Working process:

[0032] Reference Figures 3~6 , turn on the gas circuit switch 13, the cylinder 12 drives the push rod 3 to move upward, the square tube sleeve 16 is placed on the support frame 10, the boss 11 of the support frame 10 fixes the square tube sleeve 16, and then the tube barrel 17 is placed in the square tube sleeve 16, the square tube sleeve 16 wraps the tube barrel 17, adjust the switch button on the fixing box 7, the cylinder 12 drives the push rod 3 to move downward, the rotating pressure block 4 presses the square tube 2, and welds the connection between the square tube sleeve 16 and the tube barrel 17.

[0033] The positioner 5 of the utility model can rotate 360 ​​degrees, and can realize welding at various angles. After fixing the square tube sleeve 16 and the tube barrel 17, it is only necessary to turn on the switch of the motor and adjust it to a suitable angle for welding.

[0034] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A trailer square tube welding tool, characterized by: The tool comprises a tool body (1), a telescopic device, a push rod (3) and a pressing block (4), wherein the telescopic device is fixedly mounted on the tool body (1), the push rod (3) is mounted on the telescopic device, and the pressing block (4) is fixedly mounted on the top of the push rod (3).

2. A trailer square tube welding tool according to claim 1, characterized in that: The push rod (3) is formed by threaded connection of an internal threaded rod (301) and an external threaded rod (302).

3. The trailer square tube welding tool according to claim 1, characterized in that: The tooling body (1) comprises a positioner (5) and a support frame (10); the support frame (10) is arranged on the positioner (5), and the telescopic device is fixed on the support frame (10).

4. A trailer square tube welding tool according to claim 3, characterized in that: The positioner (5) is provided with at least two support frames (10) arranged at intervals, and each support frame (10) is provided with a telescopic device.

5. The trailer square tube welding tool according to claim 3, characterized in that: The positioner (5) comprises a crossbeam (20), a rotating disk (6), a fixed box (7), a motor and a rotating shaft (9), wherein the two fixed boxes (7) are respectively connected to a rotating disk (6), the motor is installed in one fixed box (7) and connected to the rotating disk (6), the rotating shaft (9) is arranged on the other fixed box (7) and connected to the rotating disk (6), and the crossbeam (20) is fixed horizontally between the two rotating disks (6).

6. The trailer square tube welding tool according to claim 3, characterized in that: The support frame (10) comprises a support frame top plate (101) and a support column (102); the support column (102) is fixed on the positioner (5); the support frame top plate (101) is fixed on the support column (102); the telescopic device is fixed on the lower side of the support frame top plate (101); a circular hole is provided on the support frame top plate (101) for the top rod (3) to pass through; the top rod (3) passes through the circular hole to connect to the telescopic device.

7. The trailer square tube welding tool according to claim 6, characterized in that: A boss (11) for fixing the square tube sleeve (16) is provided on the top plate (101) of the support frame, and a circular hole for the top rod (3) to pass through is provided on the boss (11).

8. The trailer square tube welding tool according to claim 1, characterized in that: The telescopic device comprises a cylinder (12), an air circuit switch (13) and an air intake pipeline (14); the cylinder (12) is fixed on the tool body (1); the air circuit switch (13) is installed on one side of the tool body (1); and the air intake pipeline (14) connects the cylinder (12) and the air circuit switch (13).

9. The trailer square tube welding tool according to claim 1, characterized in that: The side of the pressing block (4) is provided with a square tube pressing angle (8), and an avoidance groove (19) is provided on the pressing block (4) below the square tube pressing angle (8).

Images