Cylinder bottom welding device of hydraulic oil cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinder bottom welding, in particular to a hydraulic oil cylinder bottom welding device which comprises a base, a working table is arranged on the base, a gear motor is arranged at the center of the end face of the working table and on the top face of an inner cavity of the base, and a positioning mechanism for limiting and fixing a cylinder bottom is arranged on the end face of the working table. A right supporting block is arranged on the right side of the base, a welding tool height adjusting mechanism is arranged on the end face of the right supporting block, a left supporting sleeve block is arranged on the left side of the base, a top plate is arranged on the left supporting sleeve block, a round block is arranged on the bottom face of the top plate, and a rubber sleeve ring for limiting an inserting oil cylinder is arranged on the end face of the round block. The device can stably support the cylinder bottom and the oil cylinder placed between the workbench and the top plate, ensures that the cylinder bottom and the oil cylinder are coaxially assembled and do not deviate, and performs uniform-speed circular motion on the stably supported cylinder bottom and oil cylinder workpiece under the driving of the gear motor, so that the whole-circle welding is realized, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder bottom welding of hydraulic oil cylinders, in particular to a cylinder bottom welding device of a hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The hydraulic cylinder is basically composed of a cylinder barrel, a cylinder base, a cylinder top cover, a piston and a piston rod, a sealing device, a buffer device and an exhaust device.

[0003] At present, the connection between the cylinder barrel and the cylinder base is mainly achieved by welding, which requires two workers to operate. One worker presses the cylinder on the cylinder base, and the other worker performs spot welding to fix it, and then welds the gap between the cylinder barrel and the cylinder base. During the welding process, it is necessary to stop welding halfway, flip and adjust the position of the two so that the unwelded gap faces upward, and then weld. This method is inefficient and has low welding accuracy, which can easily cause offset between the cylinder barrel and the cylinder base, resulting in defective products. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a cylinder bottom welding device for a hydraulic cylinder, so as to solve the technical problems raised by the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a cylinder bottom welding device for a hydraulic oil cylinder, comprising a base, a workbench is arranged on the base, a reduction motor is arranged at the center of the end surface of the workbench and on the top surface of the inner cavity of the base, and a positioning mechanism for fixing the cylinder bottom with a limited position is arranged on the end surface of the workbench;

[0006] The positioning mechanism includes three slide grooves symmetrically arranged on the end surface of the workbench, a guide block is arranged in the slide groove for horizontal movement, a support spring is fixedly arranged on the inner end of the guide block and directly in the groove of the slide groove, an arc block is arranged on the outer end vertical surface of the guide block and on the top surface of the workbench, a right support block is fixedly arranged on the right side of the base, a welding tool height adjustment mechanism is horizontally arranged on the end surface of the right support block, a left support sleeve block is fixedly arranged on the left side of the base, a top plate is arranged on the left support sleeve block, a round block is arranged on the bottom surface of the top plate, and a rubber sleeve ring for limiting the position of the plug-in oil cylinder is arranged on the end surface of the round block.

[0007] Preferably, the adjustment mechanism comprises a fixing sleeve which is arranged on the end face of the right supporting block and moves horizontally in the provided groove, a supporting frame is arranged on the fixing sleeve, and a welding gun is arranged on the upper fixed part of the supporting frame.

[0008] Preferably, a guide plate is fixedly provided on the side of the top plate and is slidably connected to the top opening of the left supporting sleeve block.

[0009] Preferably, an adjusting screw is provided on the same side of the left supporting sleeve block and the guide plate.

[0010] Preferably, a transverse plate is provided on the open end surface of the adjusting screw near the top of the left supporting sleeve block, and a support plate is provided on the end surface of the guide plate on the side of the top plate of the adjusting screw.

[0011] Preferably, a fastening stud is provided on the fixing sleeve, and the fastening stud horizontally penetrates the outer end surface of the fixing sleeve and is arranged in contact with the lower supporting part of the support frame.

[0012] Preferably, a metal spring is disposed on the peripheral wall of the welding gun and in contact with a placement groove provided in a fixed portion of the support frame.

[0013] By means of the above technical solution, the utility model provides a cylinder bottom welding device for a hydraulic cylinder, which has at least the following beneficial effects:

[0014] 1. Due to the arrangement of the reduction motor, the positioning mechanism, the left support sleeve, the top plate, the round block, the rubber sleeve ring and the adjusting screw, the utility model can stably support the cylinder bottom and the oil cylinder placed between the workbench and the top plate through the coordinated use of the above structures, ensuring that the two are coaxially assembled without offset. At the same time, under the drive of the reduction motor, the stably supported cylinder bottom and the oil cylinder workpiece are subjected to uniform circular motion, thereby realizing full-circle welding and improving welding efficiency.

[0015] 2. Due to the arrangement of the positioning mechanism, the adjusting mechanism, the adjusting screw and the rubber sleeve ring, the various structural parts of the utility model can be adjusted adaptively to meet the welding operation requirements of cylinder bottoms of various specifications, and the utility model has universal applicability and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0017] In the attached picture:

[0018] Figure 1 This is a first-view stereoscopic structural diagram of the overall cylinder bottom welding device of a hydraulic oil cylinder of the utility model;

[0019] Figure 2 This is a second-angle stereoscopic structural diagram of the cylinder bottom welding device of a hydraulic oil cylinder of the utility model;

[0020] Figure 3This is a third-angle stereoscopic structural diagram of the cylinder bottom welding device of a hydraulic cylinder of the utility model.

[0021] In the figure: 1. base; 2. workbench; 3. reduction motor; 4. positioning mechanism; 41. guide block; 42. support spring; 43. arc block; 5. right support block; 6. adjustment mechanism; 61. fixing sleeve; 62. support frame; 63. welding gun; 64. fastening stud; 7. left support sleeve block; 8. top plate; 9. round block; 10. rubber sleeve ring; 11. adjusting screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Figure 1-Figure 3 An embodiment of the utility model is as follows: a cylinder bottom welding device of a hydraulic oil cylinder comprises a base 1, a workbench 2 is installed on the base 1, a reduction motor 3 is installed at the end face center of the workbench 2 and on the top face of the inner cavity of the base 1, the output shaft of the reduction motor 3 is fixedly connected with the end face center of the workbench 2 through a coupling, the workbench 2 is driven by the reduction motor 3 to realize the rotation and uniform motion on the end face of the base 1, and a positioning mechanism 4 for limiting and fixing the cylinder bottom is installed on the end face of the workbench 2;

[0024] The positioning mechanism 4 includes three slide grooves which are centrally symmetrically opened on the end face of the workbench 2, and a guide block 41 is connected to the guide in the slide groove. The inner end of the guide block 41 is welded directly to the support spring 42 in the groove of the slide groove, and the outer end of the guide block 41 is welded to the vertical surface and the arc block 43 on the top face of the workbench 2. The inner circumferential surface of the cylinder bottom abuts against the outer arc surface of the arc block 43 and is fixed under the elasticity of the support spring 42. The right support block 5 is welded on the right side of the base 1, and the end face of the right support block 5 is horizontally installed with a welding tool height adjustment mechanism 6. The left support sleeve block 7 is welded on the left side of the base 1. The left support sleeve block 7 is vertically guided and connected to the top plate 8. The bottom face of the top plate 8 is rotatably connected to the round block 9. The end face of the round block 9 is grooved and embedded with a rubber sleeve 10 for assembling a limited plug-in oil cylinder. The rubber sleeve 10 adopts multiple specifications, and is fixed by the rubber sleeve 10 and the cylinder wall of the oil cylinder, and is protected without damage by the material of the rubber sleeve 10.

[0025] The adjusting mechanism 6 comprises a fixing sleeve 61 which is arranged on the end face of the right supporting block 5 and moves horizontally in the groove provided therein, the fixing sleeve 61 is vertically guided and slidably connected to the supporting frame 62, the upper fixing part of the supporting frame 62 clamps and fixes the welding gun 63, and the height and angle of the welding gun 63 are determined by the coordinated use of the fixing sleeve 61 and the supporting frame 62 to meet the actual welding work requirements; the side of the top plate 8 is integrally formed with a guide plate which is slidably connected to the open top of the left supporting sleeve block 7; the adjusting screw 11 is installed on the same side of the left supporting sleeve block 7 and the guide plate; a transverse plate is installed on the adjusting screw 11 near the open end face of the top of the left supporting sleeve block 7, the operating handle of the adjusting screw 11 passes through the transverse plate and is rotatably provided on the end face of the transverse plate, the supporting plate is installed on the adjusting screw 11 near the end face of the guide plate on the side of the top plate 8, and the end face of the supporting plate is provided with a groove which is aligned with the adjusting screw 1 1, by rotating the adjusting screw 11, the adjusting screw 11 and the supporting plate are used to make the top plate 8 welded on one side of the supporting plate move linearly vertically in the upper opening of the left supporting sleeve block 7; the fixing sleeve 61 is connected by rotating the fastening stud 64, and the fastening stud 64 horizontally penetrates the outer end surface of the fixing sleeve 61 and is fixedly abutted against the lower supporting part of the supporting frame 62. After the fixing sleeve 61 and the supporting frame 62 determine the working height, the fastening stud 64 is rotated inwardly to abut against the supporting frame 62, so that the height of the fixing sleeve 61 and the supporting frame 62 is fixed; the surrounding wall of the welding gun 63 and the metal spring sheet fixed by screws in the placement groove opened on the fixed part of the supporting frame 62, the welding gun 63 can be fixedly placed by the elasticity of the metal spring sheet, and the placement angle of the welding gun 63 can be adjusted automatically.

[0026] The specific implementation process of this embodiment is as follows: when in use, on the workbench 2, the guide block 41 horizontally connected by the support spring 42 is moved in the slide groove, and the cylinder bottom to be welded can be placed on the end face of the workbench 2. At this time, the arc block 43 welded on the outer end vertical surface of the guide block 41 connected by the support spring 42 abuts against the inner circumference of the cylinder bottom, so as to keep the cylinder bottom stable on the end face of the workbench 2. Then, a rubber sleeve 10 matching the specifications of the oil cylinder is embedded in the groove opened on the bottom surface of the round block 9, so that the upper end of the oil cylinder to be welded is fixedly sleeved with the rubber sleeve 10, and then the adjusting screw is rotated. 11. By using the adjusting screw 11 and the support plate, the top plate 8 welded on one side of the support plate is made to move vertically in a straight line in the upper opening of the left support sleeve 7, so that the lower end of the oil cylinder is plugged and assembled with the cylinder bottom. Then, under the adjustment of the adjusting mechanism 6, the position of the welding point of the welding gun 63 is determined, and the metal spring fixed by the screw in the placement groove opened on the fixed part of the support frame 62 can be used to clamp and place the welding gun 63. Finally, the reduction motor 3 is started, and the cylinder bottom and the oil cylinder stably placed between the support table 2 and the top plate 8 perform uniform circular motion, thereby completing the welding operation of the cylinder bottom.

[0027] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0028] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cylinder bottom welding device for a hydraulic cylinder, comprising a base (1), a workbench (2) being arranged on the base (1), a reduction motor (3) being arranged at the center of the end surface of the workbench (2) and on the top surface of the inner cavity of the base (1), characterized in that: The end surface of the workbench (2) is provided with a positioning mechanism (4) for fixing the cylinder bottom with a limited position; The positioning mechanism (4) comprises three slide grooves which are centrally symmetrically arranged on the end surface of the workbench (2); a guide block (41) is arranged in the slide groove for horizontal movement; a support spring (42) is fixedly arranged at the inner end of the guide block (41) and in the groove of the slide groove; an arc block (43) is arranged on the outer end vertical surface of the guide block (41) and on the top surface of the workbench (2); a right support block (5) is fixedly arranged on the right side of the base (1); a welding tool height adjustment mechanism (6) is horizontally arranged on the end surface of the right support block (5); a left support sleeve block (7) is fixedly arranged on the left side of the base (1); a top plate (8) is arranged on the left support sleeve block (7); a round block (9) is arranged on the bottom surface of the top plate (8); and a rubber sleeve ring (10) for limiting the position of the plug-in oil cylinder is arranged on the end surface of the round block (9).

2. The cylinder bottom welding device of a hydraulic cylinder according to claim 1, characterized in that: The adjustment mechanism (6) comprises a fixing sleeve (61) arranged on the end surface of the right supporting block (5) and moving horizontally in an opened groove, a supporting frame (62) being arranged on the fixing sleeve (61), and a welding gun (63) being arranged on the upper fixed part of the supporting frame (62).

3. The cylinder bottom welding device of a hydraulic cylinder according to claim 1, characterized in that: A guide plate is fixedly provided on the side of the top plate (8) and is slidably connected to the top opening of the left supporting sleeve block (7).

4. The cylinder bottom welding device of a hydraulic cylinder according to claim 3, characterized in that: An adjusting screw (11) is arranged on the same side of the left supporting sleeve block (7) and the guide plate.

5. The cylinder bottom welding device of a hydraulic cylinder according to claim 4, characterized in that: A transverse plate is provided on the open end surface of the top of the left support sleeve block (7) on the adjusting screw (11), and a support plate is provided on the end surface of the side guide plate of the top plate (8) on the adjusting screw (11).

6. The cylinder bottom welding device of a hydraulic cylinder according to claim 2, characterized in that: The fixing sleeve (61) is provided with a fastening stud (64), and the fastening stud (64) horizontally penetrates the outer end surface of the fixing sleeve (61) and is arranged in contact with the lower supporting part of the supporting frame (62).

7. The cylinder bottom welding device of a hydraulic cylinder according to claim 2, characterized in that: A metal spring is disposed on the peripheral wall of the welding gun (63) and in contact with a placement groove provided in a fixed portion of the support frame (62).

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