Robot welding tool for hard pipe in hydraulic pipeline system

Abstract

The utility model belongs to the technical field of tailor-welding equipment, and particularly discloses a robot welding tool for a hard pipe in a hydraulic pipeline system. The welding tool comprises a bottom plate, a mounting box, a first fixing set and a second fixing set. The bottom plate is horizontally arranged; the mounting box is arranged on the bottom plate and is provided with two parallel vertical plates; the first fixing set and the second fixing set each comprise a limiting piece arranged on the bottom plate, a supporting piece arranged on the mounting box and a pressing piece, two pipe openings of the hard pipe are limited and fixed through the two fixing sets, and tailor-welding machining of the two ends of the hard pipe and the connecting pieces can be achieved. The hydraulic hard pipe welding device can greatly improve the welding efficiency of hard pipes, ensure the welding quality, guarantee the size requirement of products and reduce the production cost, and can be widely used for machining different complex hydraulic hard pipe pipelines.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a robot welding tool for hard pipes in a hydraulic pipeline system. Background Art

[0002] In the hard pipe welding technology of hydraulic pipeline system, the hard pipe needs to be bent to different degrees during design due to the spatial layout to achieve the connection requirements of the spatial size. The traditional welding process relies on manual operation. When facing the welding of hydraulic pipelines with complex dimensions, the processing is difficult and the production efficiency is very low. In addition, it is easy to have problems such as inaccurate welding positioning and poor stability, and the welding quality is difficult to guarantee. As a result, it is difficult to meet the welding processing requirements of the complex pipeline layout design of the hydraulic system, and it is difficult to implement. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a robot welding tool for hard pipes in a hydraulic pipeline system, which can greatly improve the welding efficiency of the hard pipes, ensure the welding quality, guarantee the size requirements of the product, and reduce the production cost.

[0004] In order to achieve the above purpose, the specific technical solutions adopted by the utility model are as follows:

[0005] A robot welding tool for a hard pipe in a hydraulic pipeline system, used for welding a hard pipe with a bent structure to a connecting piece, wherein the hard pipe has a first pipe opening and a second pipe opening;

[0006] The welding tool comprises a base plate, a mounting box and a first fixing group; the base plate is arranged horizontally; the mounting box is arranged on the base plate and has two parallel vertical plates; the first fixing group comprises two first positioning units distributed on both sides of the mounting box and a first pressing member, which is used to fix a group of two hard pipes on both sides of the mounting box before welding the first pipe opening and the first connecting member;

[0007] The first positioning unit includes a first supporting member arranged on the vertical plate and a first limiting member arranged on the bottom plate; the first connecting member is sleeved on the first pipe opening and the bottom is plug-in connected to the first limiting member; the second pipe opening frame is placed on the first supporting member; the first clamping member is installed on the installation box, and its two ends can be raised and lowered synchronously, and the ends of the two hard tubes close to the first pipe opening are clamped to the first supporting member by pressing down the ends.

[0008] Furthermore, the welding tool also includes a second fixing group arranged side by side with the first fixing group, which is used to fix the hard pipe that has completed the welding of the first pipe mouth before welding the second pipe mouth and the second connecting piece, and includes two second positioning units distributed on both sides of the installation box and a second pressing piece;

[0009] The second positioning unit includes a second supporting member arranged on the vertical plate and a second limiting member arranged on the bottom plate; the second connecting member is sleeved on the second pipe opening and the bottom is plug-in connected to the second limiting member; the first connecting member welded on the first pipe opening is placed on the second supporting member; the second clamping member is installed on the installation box, and its two ends can be raised and lowered synchronously, and the ends of the two hard tubes close to the second pipe opening are clamped to the second supporting member by pressing down the ends.

[0010] Further, the first connecting member is a flange or a block joint, and the second connecting member is a flange or a block joint; when the first connecting member is a flange and the second connecting member is a block joint, the first limiting member is at least two positioning pins that are plugged in and out of the circumferentially distributed mounting holes of the flange, and the second limiting member is a groove-shaped fixing seat for the block joint to be embedded.

[0011] Furthermore, the first support member and the second support member are plate-like structures with notches; the notch shape of the first support member matches the lower contour of the second pipe opening of the rigid tube, and the notch shape of the second support member matches the lower contour of the first connecting member.

[0012] Furthermore, the first pressing member and the second pressing member have the same structure, both comprising an angle cylinder, a pressing plate and an adjusting screw. The angle cylinder is vertically arranged upward, and its main body is installed inside the installation box, and its top extends out of the installation box and is connected to the middle of the pressing plate; the pressing plate is horizontally arranged, and an adjusting screw is respectively passed through its two ends; the adjusting screw is threadedly connected to the pressing plate, and the two adjusting screws are pressed down under the drive of the angle cylinder, thereby pressing a group of two hard tubes.

[0013] Furthermore, the bottom plate is hollowed out in the area where the installation box is arranged to form a cylinder replacement slot.

[0014] Further, the two first positioning units in the first fixing group and the two second positioning units in the second fixing group are respectively arranged symmetrically with respect to the installation box.

[0015] Furthermore, the first fixing group and the second fixing group are both provided with multiple groups at intervals along the length direction of the installation box. In this embodiment, the multiple groups are at least two groups.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model arranges the first fixing group and the second fixing group to fix the two pipe openings of the hard pipe, and realizes the welding processing of the two ends of the hard pipe and the connecting piece in sequence. Compared with the manual positioning and fixing during manual welding, the welding difficulty is greatly reduced and the processing efficiency is significantly improved.

[0018] 2. The first fixing group and the second fixing group composed of the support member, the limit member and the clamping member provided in the utility model can quickly limit and fix the hard pipe, ensure the accuracy of the welding position and the stability of the hard pipe during the welding process, improve the processing size accuracy and welding quality, and ensure product quality.

[0019] 3. When the welding tool of the utility model is used, the welding operation can be started as long as the hard pipe and the connecting parts are placed in the corresponding positions. The operation is simple, fast and safe. One tool can complete the welding processing of multiple groups of hard pipes, further improving production efficiency and effectively reducing production costs.

[0020] 4. When facing a hard pipe with a complex angle, the utility model tool only needs to adjust the position, size and shape of each component in the fixing group during design to achieve the fixing and welding of the hard pipe. The design is simple and fully meets the requirements of more diverse actual pipe layout of the hard pipe in the hydraulic system. It allows designers to avoid giving up complex pipeline design due to the difficulty of manual welding and the inability to guarantee product quality, and provides a guarantee for the realization of the original design and layout of the product, which has a good practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : A three-dimensional structural diagram of the robot welding tooling for hard pipes in the hydraulic pipeline system described in Example 1.

[0022] Figure 2 : Figure 1 Top view of the .

[0023] Figure 3 : Figure 1 Bottom view of .

[0024] Figure 4 : Schematic diagram of the structure of the installation box in the robot welding tooling for hard pipes in the hydraulic pipeline system described in Example 1.

[0025] Figure 5 : Schematic diagram of the structure of the bottom plate in the robot welding tooling for hard pipes in the hydraulic pipeline system described in Example 1.

[0026] In the figure: 1-hard tube, 2-first connecting member, 3-second connecting member, 4-bottom plate, 5-installation box, 6-first fixing group, 7-second fixing group; 41-cylinder replacement slot, 51-vertical plate, 61-first supporting member, 62-first limiting member, 63-first clamping member, 71-second supporting member, 72-second limiting member, 73-second clamping member; 631-angle cylinder, 632-pressing plate, 633-adjusting screw. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] A robot welding tool for hard pipes in a hydraulic pipeline system, the structure of which is as follows Figure 1-3 As shown, it is used to fix and weld the two pipe openings of the hard pipe 1 with a bent structure to the connecting piece. The welding tool comprises a base plate 4, a mounting box 5, two first fixing groups 6 and two second fixing groups 7. The base plate 4 is arranged horizontally, and the mounting box 5 is fixedly mounted on the base plate 4, and has two parallel vertical plates 51; the two first fixing groups 6 and the two second fixing groups 7 are arranged side by side and spaced along the length direction of the mounting box 5.

[0030] The first fixing group 6 is used to fix a group of two hard pipes 1 on both sides of the installation box 5 before welding the first pipe opening and the first connecting member 2, and the first connecting member 2 is a flange. The first fixing group 6 includes two first positioning units symmetrically distributed on both sides of the installation box 5 and a first pressing member 63, and the first positioning unit includes a first support member 61 installed on the vertical plate 51 and a first stopper 62 provided on the bottom plate 4. The flange (i.e., the first connecting member 2) is sleeved on the first pipe opening and has circumferentially distributed mounting holes. The first stopper 62 is two symmetrically distributed positioning pins ( Figure 5 ); the second pipe opening is supported on the first support member 61, and the first support member 61 is a plate-shaped structure with a notch, and the shape of the notch matches the lower contour of the second pipe opening. The first pressing member 63 is used to press one end of a group of two hard pipes 1 near the second pipe opening against the first support member 61 from above.

[0031] The second fixing group 7 is used to fix the hard pipe 1 that has completed the welding of the first pipe mouth before welding the second pipe mouth and the second connecting member 3, and the second connecting member 3 is a block joint. The second fixing group 7 includes two second positioning units symmetrically distributed on both sides of the installation box 5 and a second pressing member 73, and the second positioning unit includes a second support member 71 installed on the vertical plate 51 and a second limit member 72 set on the bottom plate 4. The block joint (i.e., the second connecting member 3) is placed on the second pipe mouth, and the second limit member 72 is a groove-shaped fixing seat for the block joint to be embedded; the flange (i.e., the first connecting member 2) welded to the first pipe mouth is placed on the second support member 71, and the second support member 71 is a plate-like structure with a notch, and its notch shape matches the lower contour of the flange. The second pressing member 73 is used to press one end of a group of two hard pipes 1 near the first pipe mouth to the second support member 71 from above.

[0032] More specifically, the first pressing member 63 and the second pressing member 73 have the same structure. Taking the first pressing member 63 as an example, it includes an angle cylinder 631, a pressing plate 632 and an adjusting screw 633 ( Figure 4 ). The corner cylinder 631 is vertically arranged upward, and its main body is installed inside the installation box 5. The top end extends out of the installation box 5 and is connected to the middle of the pressure plate 632. The area below the corner cylinder 631 on the bottom plate 4 is hollowed out to form a cylinder replacement slot 41. The pressure plate 632 is horizontally arranged, and an adjusting screw 633 is respectively penetrated at both ends; the adjusting screw 633 is threadedly connected to the pressure plate 632 to adjust the length of the upper and lower sections, so as to adapt to more pipe diameters. The clamping effect can also be ensured by fine-tuning. The adjusting screw 633 is driven to rise and fall by the corner cylinder 631, and the two adjusting screws 633 are pressed down under the drive of the corner cylinder 631, thereby clamping a group of two hard pipes 1. In the original state, the pressing plate 632 is parallel to the installation box 5 and will not cause spatial obstruction to the hard tube 1. When the clamping piece is working, the angle cylinder 631 drives the pressing plate 632 to rotate to a position perpendicular to the installation box 5, and at the same time drives the pressing plate 632 to press down so that the adjusting screw 633 presses the hard tube 1.

[0033] The method of using the robot welding tool for hard pipes in the hydraulic pipeline system is as follows:

[0034] First, perform the following operations using the first fixing group 6 to perform the butt welding of the first pipe opening of the rigid tube 1: connect the flange to the positioning pin on the base plate 4, place the first pipe opening into the flange, and mount the second pipe opening on the first support member 61 to complete the positioning; then, start the cylinder, and use the first clamping member 63 to clamp the rigid tube 1 to the first support member 61 to complete the fixation, and then use the welding tool to perform butt welding on the connection between the first pipe opening and the flange; after welding is completed, start the cylinder to reset the first clamping member 63, and remove the rigid tube 1 from the first fixing group 6.

[0035] Then, perform the following operations to weld the second pipe opening of the removed hard pipe using the second fixing group 7: place the block joint into the fixing seat on the base plate 4, and place the second pipe opening into the block joint, and place the flange welded to the first pipe opening onto the second support member 71 to complete the positioning; then, start the cylinder, and use the second clamping member 73 to clamp the hard pipe 1 onto the second support member 71 to complete the fixation, and then use the welding tool to weld the connection between the second pipe opening and the block joint; after welding is completed, start the cylinder to reset the second clamping member 73, and remove the hard pipe 1 from the second fixing group 7.

[0036] Thus, the welding work between the two ends of the hard pipe 1 and different connecting pieces is completed.

[0037] This specific implementation method is only an explanation of the utility model, not a limitation of the utility model. Any changes made by those skilled in the art after reading the specification of the utility model will be protected by the patent law as long as they are within the scope of the claims of the utility model.

Claims

1. A robot welding tool for hard pipes in a hydraulic pipeline system, characterized by: Used for welding a hard tube (1) with a bent structure to a connecting piece, the hard tube (1) having a first pipe opening and a second pipe opening; the welding tool comprises a base plate (4), a mounting box (5) and a first fixing group (6); the base plate (4) is arranged horizontally; the mounting box (5) is arranged on the base plate (4) and has two parallel vertical plates (51); the first fixing group (6) comprises two first positioning units distributed on both sides of the mounting box (5) and a first pressing member (63), which is used to fix a group of two hard tubes (1) on both sides of the mounting box (5) before welding the first pipe opening to the first connecting piece (2); The first positioning unit comprises a first supporting member (61) arranged on the vertical plate (51) and a first limiting member (62) arranged on the bottom plate (4); the first connecting member (2) is sleeved on the first pipe opening and the bottom is plug-in connected to the first limiting member (62); the second pipe opening is supported on the first supporting member (61); the first pressing member (63) is installed on the installation box (5), and its two ends can be raised and lowered synchronously, and the ends of the two hard tubes (1) close to the second pipe opening are pressed against the first supporting member (61) by pressing down the ends.

2. The robot welding tool for hard pipes in a hydraulic pipeline system according to claim 1, characterized in that: The welding tool also includes a second fixing group (7) arranged side by side with the first fixing group (6), which is used to fix the hard pipe (1) that has completed the welding of the first pipe mouth before welding the second pipe mouth and the second connecting piece (3), and includes two second positioning units distributed on both sides of the installation box (5) and a second pressing piece (73); The second positioning unit comprises a second supporting member (71) arranged on the vertical plate (51) and a second limiting member (72) arranged on the bottom plate (4); the second connecting member (3) is sleeved on the second pipe opening and the bottom is plug-in connected to the second limiting member (72); the first connecting member (2) welded to the first pipe opening is mounted on the second supporting member (71); the second pressing member (73) is installed on the installation box (5), and its two ends can be raised and lowered synchronously, and the ends of the two hard tubes (1) close to the first pipe opening are pressed against the second supporting member (71) by pressing down the ends.

3. The robot welding tool for hard pipes in the hydraulic pipeline system according to claim 2, characterized in that: The first connecting member (2) is a flange or a block joint, and the second connecting member (3) is a flange or a block joint.

4. The robot welding tool for hard pipes in a hydraulic pipeline system according to claim 3, characterized in that: When the first connecting member (2) is a flange and the second connecting member (3) is a block joint, the first limiting member (62) is at least two positioning pins that are plug-in-fitted with the circumferentially distributed mounting holes of the flange, and the second limiting member (72) is a groove-shaped fixing seat for the block joint to be embedded.

5. The robot welding tool for hard pipes in a hydraulic pipeline system according to any one of claims 2 to 4, characterized in that: The first support member (61) and the second support member (71) are plate-like structures with notches; the shape of the notch of the first support member (61) matches the lower contour of the second pipe opening of the hard pipe (1), and the shape of the notch of the second support member (71) matches the lower contour of the first connecting member (2).

6. The robot welding tool for hard pipes in a hydraulic pipeline system according to claim 5, characterized in that: The first pressing member (63) and the second pressing member (73) have the same structure, and both include an angle cylinder (631), a pressing plate (632) and an adjusting screw (633); The corner cylinder (631) is arranged vertically upward, and its main body is installed inside the installation box (5), and its top end extends out of the installation box (5) and is connected to the middle of the pressure plate (632); the pressure plate (632) is arranged horizontally, and an adjusting screw (633) is respectively passed through its two ends; the adjusting screw (633) is threadedly connected to the pressure plate (632), and the two adjusting screws (633) are pressed downward under the drive of the corner cylinder (631), thereby pressing a group of two hard tubes (1).

7. The robot welding tool for hard pipes in a hydraulic pipeline system according to claim 6, characterized in that: The bottom plate (4) is hollowed out in the area where the installation box (5) is arranged, forming a cylinder replacement groove (41).

8. The robot welding tool for hard pipes in a hydraulic pipeline system according to claim 2, characterized in that: The two first positioning units in the first fixing group (6) and the two second positioning units in the second fixing group (7) are respectively arranged symmetrically with respect to the installation box (5).

9. The robot welding tool for hard pipes in a hydraulic pipeline system according to claim 2, characterized in that: Multiple groups of the first fixing group (6) and the second fixing group (7) are arranged at intervals along the length direction of the installation box (5).

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