Welding device for hydraulic oil cylinder

Abstract

The utility model relates to the field of hydraulic oil cylinder welding equipment, in particular to a welding device for a hydraulic oil cylinder. The welding device comprises a machine frame and a welding device, wherein the machine frame comprises a workbench and a suspension frame; the clamping structure comprises a first clamping assembly installed on the workbench and a second clamping assembly installed on the suspension frame. The welding structure comprises a mounting rod movably mounted on the workbench and a welding head adjustably mounted on the mounting rod; the driving structure comprises a turbine rotatably mounted on the workbench and a worm matched with the turbine; the worm is connected with a power source, and the installation rod is installed on the turbine. According to the welding device for the hydraulic oil cylinder, the power source can drive the worm to rotate so as to drive the turbine and the mounting rod on the turbine to rotate around the cylinder barrel, so that the welding head can rotate around the cylinder barrel, mechanical automatic welding is achieved, and the welding quality can be conveniently controlled.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder welding equipment, and more specifically to a welding device for hydraulic cylinders. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion or oscillating motion. Existing hydraulic cylinders consist of a cylinder barrel and a cylinder base, with the cylinder barrel welded to one end. During welding, the cylinder base needs to be aligned with the cylinder barrel, then the cylinder base and cylinder barrel are joined together, and finally welded using a welding torch.

[0003] Existing welding methods often involve manual welding. Workers hold a welding torch and weld around the contact surfaces of the cylinder barrel and cylinder bottom. However, this method relies heavily on the welding skills of the workers, and since each worker has a different level of skill, the welding quality of the cylinder bottom and cylinder barrel is difficult to control.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] To improve or solve the technical problem of difficulty in controlling the welding quality of cylinder bottom and cylinder barrel due to manual welding methods in the prior art, this utility model provides a welding device for hydraulic cylinders. The welding device includes: a frame, including a worktable and a suspension frame mounted on the worktable; a clamping structure, including a first clamping assembly mounted on the worktable and a second clamping assembly mounted on the suspension frame, the first clamping assembly being adapted to fix the cylinder barrel on the worktable, and the second clamping assembly being adapted to fix the cylinder bottom on the suspension frame; a welding structure, including a movable mounting rod mounted on the worktable and an adjustable welding head mounted on the mounting rod; and a drive structure, including a rotatable turbine mounted on the worktable and a worm gear mating with the turbine; the worm gear is connected to a power source, and the mounting rod is mounted on the turbine.

[0006] This utility model discloses a welding device for hydraulic cylinders, comprising a frame, a clamping structure, a welding structure, and a drive structure. The frame includes a worktable and a suspension frame. The clamping structure includes a first clamping assembly and a second clamping assembly. The first clamping assembly fixes the cylinder barrel to the worktable, and the second clamping assembly fixes the cylinder bottom to the suspension frame, facilitating the connection between the cylinder barrel and the cylinder bottom, thus facilitating subsequent welding. The welding structure includes a mounting rod and a welding head. The welding head can be height-adjusted on the mounting rod to adapt to the joint position of the cylinder barrel and the cylinder bottom. The drive structure includes a turbine, a worm gear, and a power source. The power source drives the worm gear to rotate, which in turn drives the turbine and the mounting rod on the turbine to rotate around the cylinder barrel, enabling the welding head to rotate around the cylinder barrel, achieving automated mechanical welding and facilitating quality control. Through the above configuration, the power source in this hydraulic cylinder welding device drives the worm gear to rotate, which in turn drives the turbine and the mounting rod on the turbine to rotate around the cylinder barrel, enabling the welding head to rotate around the cylinder barrel, achieving automated mechanical welding, and facilitating quality control.

[0007] Furthermore, a limiting ring is provided on the turbine, and a limiting groove matching the limiting ring is provided on the worktable.

[0008] Furthermore, a protective cover is arranged on the circumferential outer side of the turbine, and a slot is formed on the protective cover.

[0009] Furthermore, a mounting seat is provided between the turbine and the mounting rod, and the mounting seat passes through the slot and is connected to the mounting rod.

[0010] Furthermore, the protective cover includes a first arm and a second arm opposite to each other, and a receiving groove is provided on the mounting base to match the first arm and the second arm.

[0011] Furthermore, the first clamping assembly includes a plurality of clamping seats evenly and spaced apart along the circumference of the cylinder, the clamping seats being detachably mounted on the worktable.

[0012] Furthermore, the second clamping assembly includes a lifting cylinder mounted on the suspension frame, a fixed seat connected to the lifting cylinder, and a pin connecting the fixed seat and the bottom of the cylinder.

[0013] Furthermore, a pad is provided on the side of the fixed seat facing the bottom of the cylinder.

[0014] In summary, compared with the prior art, this utility model has the following beneficial effects:

[0015] The welding structure includes a mounting rod and a welding head. The welding head can be height-adjusted on the mounting rod to adapt to the joint position of the cylinder and the cylinder bottom. The drive structure includes a turbine, a worm gear, and a power source. The power source can drive the worm gear to rotate, which in turn drives the turbine and the mounting rod on the turbine to rotate around the cylinder, so that the welding head can rotate around the cylinder, realizing automatic mechanical welding and making it easier to control the welding quality. Attached Figure Description

[0016] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of an embodiment of a welding device for a hydraulic cylinder according to the present invention.

[0018] List of reference numerals in the attached drawings: 1. Frame; 11. Workbench; 12. Suspension frame; 121. Column; 122. Horizontal plate; 2. Clamping seat; 21. Base plate; 22. Top plate; 23. Connecting plate; 3. Second clamping assembly; 31. Lifting cylinder; 32. Fixed seat; 321. First side plate; 322. Second side plate; 323. Third side plate; 33. Pin shaft; 34. Pad plate; 4. Welded structure; 41. Mounting rod; 42. Welding head; 43. Adjusting seat; 5. Drive structure; 51. Turbine; 52. Worm gear; 53. Limiting ring; 54. Protective cover; 541. First support arm; 542. Second support arm; 55. Mounting seat. Detailed Implementation

[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] To improve or solve the technical problem of difficulty in controlling the welding quality of cylinder bottom and cylinder barrel due to the existing manual welding method, this utility model provides a welding device for hydraulic cylinders. The welding device includes: a frame 1, including a worktable 11 and a suspension frame 12 mounted on the worktable 11; a clamping structure, including a first clamping assembly mounted on the worktable 11 and a second clamping assembly 3 mounted on the suspension frame 12, the first clamping assembly being adapted to fix the cylinder barrel on the worktable 11, and the second clamping assembly 3 being adapted to fix the cylinder bottom on the suspension frame 12; a welding structure 4, including a movable mounting rod 41 mounted on the worktable 11 and an adjustable welding head 42 mounted on the mounting rod 41; and a drive structure 5, including a rotatable turbine 51 mounted on the worktable 11 and a worm gear 52 mating with the turbine 51; the worm gear 52 is connected to a power source, and the mounting rod 41 is mounted on the turbine 51.

[0023] Figure 1 This is a schematic diagram of an embodiment of a welding device for a hydraulic cylinder according to this utility model. Figure 1 As shown, in one or more embodiments, the welding device for hydraulic cylinders of this utility model includes a frame 1, a clamping structure, a welding structure 4, and a driving structure 5.

[0024] See also Figure 1 In one or more embodiments, the frame 1 includes a worktable 11 and a suspension frame 12 mounted on the worktable 11. The worktable 11 is generally rectangular. A ring-shaped limiting groove is formed on the worktable 11. The suspension frame 12 includes a column 121 mounted on the worktable 11 and a horizontal plate 122 disposed at one end of the column 121. The column 121 extends vertically upwards, and the horizontal plate 122 extends horizontally towards the center of the worktable 11.

[0025] See also Figure 1The clamping structure includes a first clamping assembly mounted on a workbench 11 and a second clamping assembly 3 mounted on a suspension bracket 12. The first clamping assembly is used to clamp the cylinder barrel, and the second clamping assembly 3 is used to clamp the cylinder bottom. The cylinder barrel is placed in the middle of the workbench 11, and the cylinder bottom corresponds to the cylinder barrel in the vertical direction. In one or more embodiments, the first clamping assembly includes a plurality of clamping seats 2 evenly and spaced along the circumference of the cylinder barrel, and the plurality of clamping seats 2 cooperate to fix the cylinder barrel on the workbench 11. For example, three clamping seats 2 are provided, and the three clamping seats 2 are spaced 120 degrees apart. Further, each clamping seat 2 includes a base plate 21 detachably mounted on the workbench 11, a top plate 22 arranged vertically opposite to the base plate 21, and a connecting plate 23 connecting the base plate 21 and the top plate 22. The base plate 21 is detachably mounted on the workbench 11 by bolts. For example, a sliding groove is provided on the workbench 11, and the sliding groove is a T-shaped groove. The bolts are slidably positioned within the groove, and when tightened, the base plate 21 and the worktable 11 form a fixed connection. Furthermore, the top plate 22 and the base plate 21 have arc-shaped surfaces at their ends facing the cylinder, which fit against the outer peripheral wall of the cylinder. Furthermore, a positioning ring is provided on the worktable 11, adapted to abut against the inner wall of the cylinder. When clamping the cylinder, the cylinder is first placed on the positioning ring, and then the clamping seat 2 abuts against the outer circumferential side of the cylinder.

[0026] See also Figure 1 In one or more embodiments, the second clamping assembly 3 includes a lifting cylinder 31 mounted on the suspension frame 12, a fixed seat 32 connected to the lifting cylinder 31, and a pin 33 connecting the fixed seat 32 and the cylinder bottom. Specifically, the piston rod of the lifting cylinder 31 is fixedly connected to the fixed seat 32. The fixed seat 32 is generally U-shaped and includes a first side plate 321, a second side plate 322 arranged opposite to the first side plate 321, and a third side plate 323 connecting the first side plate 321 and the second side plate 322. Through holes that mate with the pin 33 are provided on the first side plate 321 and the second side plate 322. The pin 33 passes through the first side plate 321, the cylinder bottom, and the second side plate 322, limiting the cylinder bottom to the fixed seat 32. A pad 34 is provided between the third side plate 323 and the cylinder bottom, and the pad 34 abuts against the cylinder bottom to prevent the cylinder bottom from rotating.

[0027] See also Figure 1In one or more embodiments, the drive structure 5 includes a turbine 51 rotatably mounted on the worktable 11 and a worm gear 52 mating with the turbine 51. The turbine 51 is generally annular and surrounds the circumferential outer side of the first clamping structure. The worm gear 52 is connected to a power source, which drives the worm gear 52 to rotate, thereby driving the turbine 51 to rotate. Further, a limiting ring 53 mating with a limiting groove is provided on the turbine 51 to limit the rotation direction of the turbine 51. For example, lubricating oil can be provided between the turbine 51 and the worktable 11 to reduce friction between them. Further, a protective cover 54 is arranged on the circumferential outer side of the turbine 51 to prevent the turbine 51 from being impacted. A slot is provided on the side of the protective cover 54 facing away from the worktable 11, facilitating the connection of the turbine 51 to the welding structure 4. Specifically, the protective cover 54 includes a first arm 541 and a second arm 542, both of which are approximately L-shaped. Further, a mounting base 55, approximately cuboid in shape, is provided between the turbine 51 and the welded structure 4. One side of the mounting base 55 is fixedly connected to the turbine 51 by bolts, and the other side is fixedly connected to the welded structure 4. Further, a receiving groove is formed on the mounting base 55, which mates with the first arm 541 and the second arm 542. The first arm 541 and the second arm 542 can support the mounting base 55, preventing the mounting base 55 and the welded structure 4 from tilting.

[0028] See also Figure 1 In one or more embodiments, the welding structure 4 includes a mounting rod 41 fixed to a mounting base 55 and a welding head 42 mounted on the mounting rod 41. Specifically, the mounting rod 41 extends vertically upward from the mounting base 55. An adjusting seat 43 is provided on the mounting rod 41, and a limiting bolt abutting against the mounting rod 41 is provided on the adjusting seat 43. When the limiting bolt rotates to abut against the mounting rod 41, the adjusting seat 43 is fixed to the mounting rod 41; when the limiting bolt rotates to disengage from the mounting rod 41, the adjusting seat 43 can slide along the mounting rod 41. The welding head 42 is mounted on the adjusting seat 43. When welding is required, the power source drives the worm gear 52 to rotate, which in turn drives the turbine 51 to rotate. The mounting rod 41 and the welding head 42 then perform circumferential motion around the cylinder. During the motion, the welding head 42 welds the joint between the cylinder and the cylinder bottom.

[0029] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A welding device for a hydraulic cylinder, characterized in that, include: The frame (1) includes a workbench (11) and a suspension frame (12) mounted on the workbench (11); The clamping structure includes a first clamping assembly mounted on the worktable (11) and a second clamping assembly (3) mounted on the suspension frame (12). The first clamping assembly is adapted to fix the cylinder barrel on the worktable (11), and the second clamping assembly (3) is adapted to fix the cylinder bottom on the suspension frame (12). The welding structure (4) includes a movable mounting rod (41) mounted on the worktable (11) and an adjustable welding head (42) mounted on the mounting rod (41); The drive structure (5) includes a turbine (51) rotatably mounted on the worktable (11) and a worm gear (52) mating with the turbine (51); the worm gear (52) is connected to a power source, and the mounting rod (41) is mounted on the turbine (51).

2. The welding device for a hydraulic cylinder according to claim 1, characterized in that, A limiting ring (53) is provided on the turbine (51), and a limiting groove matching the limiting ring (53) is provided on the worktable (11).

3. The welding device for a hydraulic cylinder according to claim 1, characterized in that, A protective cover (54) is arranged on the circumferential outer side of the turbine (51), and a slot is provided on the protective cover (54).

4. The welding device for a hydraulic cylinder according to claim 3, characterized in that, A mounting seat (55) is provided between the turbine (51) and the mounting rod (41), and the mounting seat (55) passes through the slot and is connected to the mounting rod (41).

5. A welding device for a hydraulic cylinder according to claim 4, characterized in that, The protective cover (54) includes a first arm (541) and a second arm (542) opposite to each other, and a receiving groove is provided on the mounting base (55) to match the first arm (541) and the second arm (542).

6. The welding device for a hydraulic cylinder according to claim 1, characterized in that, The first clamping assembly includes a plurality of clamping seats (2) arranged evenly and at intervals along the circumference of the cylinder, and the clamping seats (2) are detachably mounted on the worktable (11).

7. The welding device for a hydraulic cylinder according to claim 1, characterized in that, The second clamping assembly (3) includes a lifting cylinder (31) mounted on the suspension frame (12), a fixed seat (32) connected to the lifting cylinder (31), and a pin (33) connecting the fixed seat (32) and the bottom of the cylinder.

8. A welding device for a hydraulic cylinder according to claim 7, characterized in that, A pad (34) is provided on the side of the fixed seat (32) facing the bottom of the cylinder.

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