A full hydraulic lifting type welding positioner

Abstract

The utility model relates to welding platform technical field, concretely is a kind of full hydraulic lifting type welding positioner.It includes chassis, movable frame and drive component, motor a is provided on chassis, motor a output end is provided with two-way screw rod;Two movable frames are oppositely arranged on two-way screw rod, two movable frames are all provided with hydraulic cylinder, two hydraulic cylinder outputs are all provided with mounting assembly, mounting assembly is coaxially provided with sprocket a and mounting disc on;Drive component is provided with one in two hydraulic cylinder outputs respectively;Drive component includes the mounting cylinder rotationally arranged in hydraulic cylinder output end, and multiple bull's eye bearings are arranged on tripod;Sprocket a and sprocket b are provided with chain.The utility model adjusts the orientation and height of mounting disc by hydraulic cylinder and drive component, so that the welding piece after fixing can be welded in a more simple way, and the welding point is kept in situ as far as possible during welding.

Description

Technical Field

[0001] This utility model relates to the field of welding platform technology, and in particular to a fully hydraulic lifting welding positioner. Background Technology

[0002] A welding positioner is a device used to move a workpiece to be welded, guiding the weld seam to an ideal position for welding operations. Welding positioners have quietly become an indispensable piece of equipment in the manufacturing industry, and in the welding field, they are classified as welding auxiliary machines, used in conjunction with welding robots to perform welding operations.

[0003] Chinese Patent CN221134685U discloses a hydraulic lifting manual positioner, including two lifting brackets. A connecting rod is fixed between the fixed ends of the two lifting brackets. A positioner fixture that can rotate 360 ​​degrees axially is installed between the tops of the telescopic ends of the two lifting brackets. The top of the telescopic end of one lifting bracket is also equipped with this fixture. This technical solution allows the fixture to be installed on the positioner fixture during workpiece processing. The height of the positioner fixture can then be adjusted by the lifting brackets, facilitating workpiece installation and adapting to different worker heights. It can also adapt to the height of the worker, improving applicability. At the same time, the use of a manual drive to rotate the positioner fixture at an angle allows for more precise rotation angles and convenient control of the rotation range.

[0004] However, the above technical solution has the following shortcomings: when welding flanges and other items, the welding points of the flanges are often circular, and after the items are fixed on the positioner, the movement trajectory driven by the positioner is more complex, which increases the welding difficulty. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a fully hydraulic lifting welding positioner that uses a hydraulic cylinder and drive assembly to adjust the orientation and height of the mounting plate, so that the fixed workpiece to be welded can be welded in a simpler way, and the welding point can be kept in its original position as much as possible during the welding process.

[0006] The technical solution of this utility model is a fully hydraulic lifting welding positioner, comprising: a base frame on which a motor a is mounted, and a bidirectional lead screw is mounted at the output end of motor a; two movable frames are arranged opposite each other on the bidirectional lead screw, each movable frame is equipped with a hydraulic cylinder, and each hydraulic cylinder output end is equipped with a mounting assembly, on which a sprocket a and a mounting plate are coaxially mounted; a drive assembly is provided at each of the output ends of the two hydraulic cylinders; the drive assembly includes a mounting cylinder rotatably mounted at the output end of the hydraulic cylinder, a tripod mounted on the mounting cylinder, a motor b mounted on the tripod, a sprocket b mounted at the output end of motor b, and multiple bullseye bearings mounted on the tripod; a chain is mounted on sprocket a and sprocket b.

[0007] Preferably, the mounting assembly includes a lower mounting frame disposed at the output end of the hydraulic cylinder, an upper mounting frame bolted to the lower mounting frame, two bearings arranged side by side on the lower mounting frame, and a connecting column and a driven column respectively disposed on the two bearings; the connecting column is coaxially connected to the mounting plate, and the sprocket a and the driven column are coaxially connected.

[0008] Preferably, the connecting post and the driven post are connected by a key.

[0009] Preferably, the transmission ratio between sprocket b and sprocket a is less than one.

[0010] Preferably, the tripod is equipped with a tensioning component, which is connected to the chain.

[0011] Preferably, the movable frame is equipped with a blower pump, which is connected to two ventilation pipes. Both ventilation pipes are connected to an air outlet frame, and the two air outlet frames are respectively distributed on both sides of the bottom end of the base frame.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] When using this invention, the components to be welded are fixed to one or two mounting plates depending on the welding method. If fixed to two mounting plates, motor a drives the bidirectional lead screw to rotate. The bidirectional lead screw drives the two movable frames to move relative to each other, allowing the two items to be welded to move to a position that is convenient for welding. If the items are cylindrical or other regular shapes, the welding point can always be exposed in a position that is convenient for welding.

[0014] If fixed on a mounting plate, the mounting cylinder is manually rotated to orient the tripod towards a direction conducive to welding. The mounting cylinder is fixed with bolts, and the position is fixed by adjusting the friction between the bolts and the output end of the hydraulic cylinder, thereby reducing the welding difficulty for workers on different items to be welded. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram illustrating the installation principle of the mounting plate and sprocket in an embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the driving component in an embodiment of the present utility model;

[0018] Figure 4 This is a partial schematic diagram of an embodiment of the present utility model.

[0019] Reference numerals: 1. Base frame; 2. Motor a; 3. Double-acting lead screw; 4. Movable frame; 5. Hydraulic cylinder; 6. Lower closing frame; 7. Upper closing frame; 8. Connecting column; 9. Mounting plate; 10. Driven column; 11. Sprocket a; 12. Drive assembly; 121. Mounting cylinder; 122. Tripod; 123. Motor b; 124. Sprocket b; 125. Bullseye bearing; 13. Blower pump; 14. Ventilation duct; 15. Exhaust frame; 16. Bearing. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-4 As shown in this embodiment, a fully hydraulic lifting welding positioner includes a base frame 1, a movable frame 4, and a drive assembly. A motor a2 is mounted on the base frame 1, and a bidirectional lead screw 3 is mounted at the output end of the motor a2. Two movable frames 4 are arranged opposite each other on the bidirectional lead screw 3. Each movable frame 4 is equipped with a hydraulic cylinder 5, and each hydraulic cylinder 5 has a mounting assembly at its output end. A sprocket a11 and a mounting plate 9 are coaxially mounted on the mounting assembly. A drive assembly 12 is mounted at the output end of each of the two hydraulic cylinders 5. The drive assembly 12 includes a mounting cylinder 121 rotatably mounted at the output end of the hydraulic cylinder 5, a tripod 122 mounted on the mounting cylinder 121, a motor b123 mounted on the tripod 122, a sprocket b124 mounted at the output end of the motor b123, and multiple bullseye bearings 125 mounted on the tripod 122. Chains are mounted on the sprocket a11 and sprocket b124.

[0022] In this embodiment, the components to be welded are fixed to one or two mounting plates 9 depending on the welding method. If fixed to two mounting plates 9, motor a2 drives the bidirectional lead screw 3 to rotate, which in turn moves the two movable frames 4 relative to each other, allowing the two items to be welded to move to a position convenient for welding. If the items are cylindrical or other regular shapes, they are positioned at the rotation axis of the mounting plate 9 and correspond to each other. If they are irregular shapes, they are fixed arbitrarily, as long as the positions of the two items correspond to each other. Then, the two motors b123 are synchronously controlled to rotate through common methods such as frequency converters, ensuring that the welding point is always exposed in a position convenient for welding. If fixed to one mounting plate 9, the mounting cylinder 121 is manually rotated so that the tripod 122 faces the direction convenient for welding. The mounting cylinder 121 is fixed with bolts, and the position is fixed by adjusting the friction between the bolts and the output end of the hydraulic cylinder 5, thereby reducing the welding difficulty for workers on different items to be welded.

[0023] Example 2

[0024] like Figure 1 and Figure 2As shown, this embodiment proposes a fully hydraulic lifting welding positioner. Compared to Embodiment 1, in this embodiment, the mounting components include a lower frame 6 located at the output end of the hydraulic cylinder 5, an upper frame 7 bolted to the lower frame 6, two bearings 16 arranged side by side on the lower frame 6, and connecting columns 8 and driven columns 10 respectively on the two bearings 16. The connecting column 8 is coaxially connected to the mounting plate 9, and the sprocket a11 is coaxially connected to the driven column 10. First, the bearings 16 are fixed to the connecting column 8 and the driven column 10, and then the upper frame 7 is used in conjunction with the lower frame 6 to restrict them. The connecting column 8 and the mounting plate 9 are integrally formed with the sprocket a11 and the driven column 10, thereby improving the positioner's load-bearing capacity for the items to be welded. Furthermore, the mounting plate 9 can be adjusted according to the needs of the items to be welded, such as being adjusted to a four-jaw chuck to clamp the items, thereby improving the practicality of the positioner.

[0025] The connecting column 8 and the driven column 10 are connected by a key. The transmission error caused by the key connection is small. Furthermore, flat keys are easy to disassemble and assemble because of their simple structure after being damaged during long-term operation.

[0026] Example 3

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, this embodiment proposes a fully hydraulic lifting welding positioner. Compared to Embodiment 1, in this embodiment, the transmission ratio between sprocket b124 and sprocket a11 is less than one. This allows the motor b123 to drive the machine, increasing the rotational torque of sprocket b124. This ensures stable rotation of the workpiece within the weight that the chain and positioner structure can withstand.

[0028] The tripod 122 is equipped with a tensioning component, which is connected to the chain. During use, the chain is prone to tension problems due to reasons such as sagging. The tensioning component is used to prevent errors in the meshing of the sprocket and the chain.

[0029] A blower pump 13 is installed on the movable frame 4. The blower pump 13 is connected to two ventilation pipes 14. Both ventilation pipes 14 are connected to an air outlet frame 15. The two air outlet frames 15 are respectively distributed on both sides of the bottom end of the base frame 1. The blower pump 13 blows air through the ventilation pipes 14 and the air outlet frames 15 to clean the dust and debris covering the surface of the bidirectional lead screw 3 on the front and rear sides of the movable frame 4, thereby improving the stability of the bidirectional lead screw 3 transmission.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A full hydraulic gantry positioner for welding, characterized in that, include: A base frame (1) is provided with a motor a (2) and a bidirectional lead screw (3) is provided at the output end of the motor a (2); The movable frame (4) has two oppositely arranged on the two-way screw (3). Each movable frame (4) is equipped with a hydraulic cylinder (5). The output end of each hydraulic cylinder (5) is equipped with an installation component. The installation component is coaxially equipped with a sprocket a (11) and an installation plate (9). A drive assembly (12) is provided at the output ends of two hydraulic cylinders (5); the drive assembly (12) includes a mounting cylinder (121) rotatably mounted at the output end of the hydraulic cylinder (5), a tripod (122) mounted on the mounting cylinder (121), a motor b (123) mounted on the tripod (122), a sprocket b (124) mounted at the output end of the motor b (123), and a plurality of bullseye bearings (125) mounted on the tripod (122); a chain is provided on the sprocket a (11) and the sprocket b (124).

2. A full hydraulic gantry positioner according to claim 1, characterized in that, The mounting assembly includes a lower mounting frame (6) located at the output end of the hydraulic cylinder (5), an upper mounting frame (7) bolted to the lower mounting frame (6), two bearings (16) arranged side by side on the lower mounting frame (6), and a connecting column (8) and a driven column (10) respectively arranged on the two bearings (16); the connecting column (8) is coaxially connected to the mounting plate (9), and the sprocket a (11) and the driven column (10) are coaxially connected.

3. A full hydraulic gantry positioner according to claim 2, characterized in that, The connecting post (8) and the driven post (10) are connected by a key.

4. A full hydraulic lifting positioner according to claim 1, characterized in that, The transmission ratio between sprocket b (124) and sprocket a (11) is less than one.

5. A full hydraulic gantry positioner according to claim 1, characterized in that, The tripod (122) is equipped with a tensioning component, which is connected to the chain.

6. A full hydraulic lifting positioner according to claim 1, characterized in that, A blower pump (13) is installed on the movable frame (4). The blower pump (13) is connected to two ventilation pipes (14). Both ventilation pipes (14) are connected to an air outlet frame (15). The two air outlet frames (15) are respectively distributed on both sides of the bottom end of the base frame (1).

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