Movable welding workstation structure

Abstract

The utility model discloses a movable welding workstation structure, and relates to the technical field of mechanical manufacturing, the movable welding workstation structure comprises a joint arm and a rack, the joint arm is used for supporting a welding gun and realizing position adjustment, the rack is used for mounting the joint arm and rapid transfer equipment, and the joint arm comprises a joint support, a first connecting rod, a middle joint, a second connecting rod and a tail end joint; the joint support is fixed to the rack, the two ends of the first connecting rod are slidably connected with the joint support and the middle joint correspondingly, the two ends of the second connecting rod are fixedly connected with the middle joint and the tail end joint correspondingly, the welding gun is installed on the tail end joint, and the joint arm achieves welding gun position adjustment through the joint support and the middle joint. The supporting legs are used for supporting the frame structure. The equipment cabinet is used for installing electrical equipment. According to the technical scheme, an independent work station structure is used for replacing a traditional truss type welding structure, the flexibility effect of equipment is improved, the problem that production cannot be rapidly matched is solved, and the utilization rate of trial-manufactured equipment is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a movable welding workstation structure. Background Art

[0002] In the traditional welding process of body sheet metal parts, most of the time, the welding is done using a resistance spot welding gun suspended on a truss. Here, the welding solution can meet the assembly line production of large quantities of fixed products. With the increasing demand for personalized customization of automobiles, the speed of updating and iteration of new models is accelerating, and the demand for small-batch production is increasing. It is difficult to adjust and combine the equipment between traditional truss-type fixed production lines, and the flexibility is poor, which cannot fully meet the needs of small-batch production. Especially for the project trial production work in the early stage of new model development, the trial production factory is affected by factors such as the short cycle and large quantity of the trial production project, and the project production demand is unstable, resulting in the use of traditional truss-type fixed production line equipment. The production capacity is sometimes overloaded and sometimes completely idle, and the production line capacity output is unstable. Utility Model Content

[0003] The purpose of the utility model is to improve the traditional welding gun or welding clamp system, and concentrate all the components used in its work, such as welding gun, control cabinet, water cooling and gas source, in a mobile welding workstation. Through structural optimization, the welding workstation can meet the requirements of free adjustment of the welding height angle of the truss welding gun, replace the truss fixed production line equipment of traditional car body production, and realize free allocation of combined welding gun models to meet welding needs. At the same time, the workstation can be movable and miniaturized. According to the production needs of the project, idle equipment can be quickly transferred to the production line required by production, and production capacity can be flexibly allocated.

[0004] The technical solution of the utility model is: to provide a movable welding workstation structure, which comprises a joint arm and a stand, one end of the joint arm is fixed to the upper surface of the stand, and the other end is connected to the welding gun;

[0005] The articulated arm comprises an articulated support, a first connecting rod, a middle joint, a second connecting rod and an end joint, the articulated support is fixed to the upper surface of the platform, one end of the first connecting rod is slidably connected to the articulated support, and the other end is slidably connected to the middle joint, one end of the second connecting rod is fixedly connected to the middle joint, and the other end is fixedly connected to the end joint, and the welding gun is installed on the end joint;

[0006] The stand includes a frame structure and an equipment cabinet. The equipment cabinet is fixed inside the frame structure and is used to install electrical equipment. The welding gun is electrically connected to the electrical equipment.

[0007] Furthermore, the joint support is fixed to the upper surface of the stand by bolts, a first support shaft and a first bearing are arranged at the upper end of the joint support, the first bearing is sleeved on the first support shaft, one end of the first connecting rod is fixedly connected to the first bearing, and the first connecting rod rotates freely around the joint support.

[0008] Furthermore, a second support shaft and a second bearing are arranged at the lower end of the middle joint, the second bearing is sleeved on the second support shaft, the other end of the first connecting rod not connected to the joint support is fixedly connected to the second bearing, and the middle joint rotates freely around the end of the first connecting rod.

[0009] Furthermore, a first locking handle is provided on the first connecting rod at a position connected to the joint support, for tightening the first connecting rod after the position adjustment is completed, and a second locking handle is provided on the first connecting rod at a position connected to the middle joint, for tightening the middle joint after the position adjustment is completed.

[0010] Furthermore, a connecting piece and a third locking handle are provided on the end joint, the connecting piece is fixedly connected to the welding gun, the connecting piece rotates around the position where it is connected to the end joint, and the third locking handle is used to tighten the connecting piece after the position adjustment is completed.

[0011] Furthermore, the frame structure includes an upper end plate and a lower end plate, the upper surface of the upper end plate is provided with a mounting hole for mounting the articulated arm, and the equipment cabinet is fixed on the lower end plate and is located between the upper end plate and the lower end plate.

[0012] Furthermore, the stand also includes universal wheels and legs. The universal wheels are installed at the bottom of the lower end plate. Installation channels are set on both sides of the frame structure near the upper end plate. The legs are slidably connected to the installation channels. The legs are extended when the stand is working and retracted when the stand is transferred.

[0013] Furthermore, the stand also includes a quick interface, which is fixed on the lower end plate and located on one side of the equipment cabinet, and the wires of the power supply are connected to the wires of the electrical equipment through the quick interface.

[0014] Furthermore, the articulated arm also includes a gas spring, one end of which is fixedly connected to the second connecting rod, and the other end of which is fixedly connected to the middle joint, and the gas spring is used to provide support for the second connecting rod.

[0015] The beneficial effects of the utility model are:

[0016] First, the technical solution in the utility model concentrates the various equipment used in the traditional truss welding method into an independent workstation structure, and sets an articulated arm for supporting the welding gun and a stand for realizing the rapid transfer of equipment. The articulated arm is installed on the stand, and an equipment cabinet for installing various electrical equipment is set in the stand. When in use, the welding gun is installed on the articulated arm, and other equipment is installed in the equipment cabinet to form an independent whole, which can be quickly transferred to the designated working position according to production needs; while the adjustment and combination between equipment in the traditional truss fixed production line is more difficult, the flexibility is poor, and the position cannot be quickly transferred. Compared with the traditional truss fixed production line, the technical solution in the utility model concentrates the required equipment into an independent whole, which can improve the flexibility of equipment use, make full use of the production capacity of the equipment production line, and use the stand to quickly transfer the independent whole, which can solve the problem that the equipment cannot quickly match the production, improve production efficiency and equipment utilization, and reduce the investment cost of the production line.

[0017] The technical solution in the utility model can also meet the customized production needs of small batches of vehicle models, improve the flexibility of car body trial welding, avoid equipment overload or complete idleness, and solve the problem of being unable to allocate production line capacity due to unstable demand for trial production projects in traditional truss-type fixed production lines.

[0018] Second, the technical solution in the utility model applies a leg structure to the workstation structure. The legs are slidably connected to the frame structure of the stand. When the stand needs to be transferred, the legs are retracted to facilitate the rapid transportation of the stand. The utilization rate of the trial production equipment can be improved through rapid transportation. After the transfer is completed, the legs are extended to ensure the stability of the welding workstation and prevent tipping. At the same time, the design of the legs meets the needs of miniaturization of the equipment and reduces the usage space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The advantages of the above and / or additional aspects of the present invention will become apparent and easily understood in the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of the overall structure of a movable welding workstation structure according to an embodiment of the utility model;

[0021] Figure 2 is a structural schematic diagram of an articulated arm according to an embodiment of the utility model;

[0022] Figure 3 is a schematic diagram of a stand in a working state according to an embodiment of the utility model;

[0023] Figure 4 is a schematic diagram of a stage in a transfer state according to an embodiment of the utility model;

[0024] Figure 5 is a schematic structural diagram of a middle joint according to an embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of a joint support according to an embodiment of the utility model.

[0026] Among them, 1-articular arm, 11-articular support, 111-first support shaft, 112-first bearing, 12-first connecting rod, 121-first locking handle, 122-second locking handle, 13-middle joint, 131-second support shaft, 132-second bearing, 14-second connecting rod, 15-end joint, 151-connecting piece, 152-third locking handle, 16-gas spring, 2-stand, 21-frame structure, 211-upper end plate, 212-lower end plate, 213-installation channel, 22-support leg, 23-universal wheel, 24-equipment cabinet, 25-quick interface, 3-welding gun. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are elaborated to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0029] like Figures 1 to 6 As shown, this embodiment provides a movable welding workstation structure, which is used to install a welding gun 3 used in the welding process. The movable welding workstation structure includes an articulated arm 1 and a stand 2. One end of the articulated arm 1 is fixed to the upper surface of the stand 2 by bolts, and the other end is connected to the welding gun 3 by bolts. An equipment cabinet for installing electrical equipment is provided on the stand 2, and the welding gun 3 is electrically connected to the electrical equipment in the equipment cabinet.

[0030] like Figure 2As shown, the articulated arm 1 is used to support the welding gun 3 and realize the position and angle adjustment of the welding gun 3. The articulated arm 1 includes an articulated support 11, a first connecting rod 12, a middle joint 13, a second connecting rod 14, an end joint 15 and a gas spring 16. The articulated support 11 is fixed to the upper surface of the gantry 2 by bolts, one end of the first connecting rod 12 is connected to the articulated support 11 by a bearing, and the other end is connected to the middle joint 13 by a bearing, one end of the second connecting rod 14 is connected to the middle joint 13 by a bolt, and the other end is connected to the end joint 15 by a bolt, one end of the gas spring 16 is connected to the second connecting rod 14 by a bolt, and the other end is connected to the middle joint 13 by a bolt, and the gas spring 16 is located inside the second connecting rod 14, and is used to provide elastic support force for the second connecting rod 14, reduce the impact and vibration during its activity, and make the operation process more stable.

[0031] like Figure 6 As shown, a mounting hole is provided at the bottom of the joint support 11, and a bolt passes through the mounting hole to fix the joint support 11 to the upper surface of the stand 2. A matching first support shaft 111 and a first bearing 112 are provided at the upper end of the joint support 11. The first bearing 112 is sleeved on the first support shaft 111, and one end of the first connecting rod 12 is fixedly connected to the first bearing 112; under the action of the first bearing 112, the first connecting rod 12 can rotate freely around the joint support 11, and the rotation angle is 360°. A first locking handle 121 is provided at the position of the first connecting rod 12 connected to the joint support 11, and the first locking handle 121 is used to tighten the first connecting rod 12 after the position adjustment is completed, so that the first connecting rod 12 no longer rotates around the joint support 11.

[0032] like Figure 5 As shown, the lower end of the middle joint 13 is provided with a matching second support shaft 131 and a second bearing 132, the second bearing 132 is sleeved on the second support shaft 131, and the other end of the first connecting rod 12 not connected to the joint support 11 is fixedly connected to the second bearing 132; under the action of the second bearing 132, when the position of the first connecting rod 12 is fixed, the middle joint 13 can rotate freely around the end of the first connecting rod 12, and the rotation angle is 360°. A second locking handle 122 is provided at the position of the first connecting rod 12 connected to the middle joint 13, and the second locking handle 122 is used to tighten the middle joint 13 after the position adjustment is completed, so that the middle joint 13 no longer rotates around the end of the first connecting rod 12.

[0033] One end of the second connecting rod 14 is connected to the middle joint 13 by a bolt, and the other end is connected to the end joint 15 by a bolt, wherein, when the bolt is loosened, the second connecting rod 14 can rotate relative to the middle joint 13. In this embodiment, when the articulated arm 1 is in use, the second connecting rod 14 can be rotated in the state of loosening the bolt to adjust the angle between the second connecting rod 14 and the horizontal direction, and the height adjustment of the welding gun 3 can be achieved by adjusting the angle.

[0034] A connecting piece 151 and a third locking handle 152 are provided on the end of the terminal joint 15 connected to the welding gun 3. The connecting piece 151 is fixedly connected to the welding gun 3. The connecting piece 151 can rotate within a specific angle range along the position where it is connected to the terminal joint 15 to achieve angle adjustment of the welding gun 3. The specific angle can be set according to a specific application scenario, such as being set to 0° to 90°. The third locking handle 152 is used to tighten the connecting piece 151 after the position adjustment is completed.

[0035] like Figure 3 , Figure 4 As shown, the platform 2 is used to install the articulated arm 1 and quickly transport various equipment installed on the platform 2. The platform 2 includes a frame structure 21, a leg 22, a universal wheel 23, an equipment cabinet 24 and a quick interface 25. The leg 22 is installed on both sides of the frame structure 21, the universal wheel 23 is installed at the bottom of the frame structure 21, the equipment cabinet 24 is fixed inside the frame structure 21, and the quick interface 25 is fixed inside the frame structure 21 and located on one side of the equipment cabinet 24.

[0036] The frame structure 21 is used to support the articulated arm 1 and the welding gun 3 installed on the articulated arm 1. The frame structure 21 includes an upper end plate 211 and a lower end plate 212. The upper surface of the upper end plate 211 is provided with a plurality of mounting holes, which are used to install the articulated arm 1; the bottom of the lower end plate 212 is provided with four brackets for installing universal wheels 23. There are four universal wheels 23, which are respectively installed on the four brackets at the bottom of the lower end plate 212.

[0037] The legs 22 are used to support the frame structure 21 after its position is determined. There are four legs 22. Two groups of mounting channels 213 are symmetrically arranged by welding on both sides of the frame structure 21, near the upper end plate 211. Each group of mounting channels 213 is divided into two upper and lower parts. The four legs 22 are slidably connected to the four mounting channels 213 respectively. When the stand 2 is working, the four legs 22 are extended to prevent the stand 2 from shaking and prevent the entire movable welding workstation structure from tipping over due to the adjustment of the position of the welding gun 3. When the stand 2 needs to be transferred, the four legs 22 are retracted and moved by the universal wheels 12 fixed to the bottom of the frame structure 21.

[0038] The equipment cabinet 24 is fixed on the lower end plate 212 and is located between the upper end plate 211 and the lower end plate 212. The equipment cabinet 24 is used to install the equipment required for work. In this embodiment, the movable welding workstation structure requires welding gun control equipment, liquid cooling equipment and gas source equipment when working. Among them, the liquid cooling equipment can realize circulating cooling inside the entire workstation structure through the coolant, and the gas source equipment is a small compressor; the welding gun control equipment, liquid cooling equipment and gas source equipment are installed inside the equipment cabinet 24.

[0039] The quick connector 25 is used to connect the wires of the equipment and the wires of the power supply, and fix the joints of these wires in one position to prevent the equipment from shaking or tipping over due to the pulling effect of the wires during the movement of the stand 2. The wires of the power supply are connected to the wires of the equipment through the quick connector 25 to power the equipment; the equipment installed in the equipment cabinet 25 is connected to the welding gun 3 through the output control line or pipeline. In this embodiment, the output control line of the welding gun control equipment, the liquid cooling pipeline of the liquid cooling equipment and the gas source pipeline of the gas source equipment are connected to the welding gun 3 after being collected.

[0040] In this embodiment, the welding gun 3 can be a standard resistance spot welding gun, and the welding gun model can also be selected according to production requirements.

[0041] The working principle of the movable welding workstation structure in this embodiment is as follows:

[0042] The joint support 11 at one end of the joint arm 1 is fixed to the upper surface of the frame structure 21 by bolts, and the welding gun 3 is fixed to the connector 151 of the end joint 15 by bolts. The equipment required for the work is installed in the equipment cabinet 24, including the welding gun control equipment, liquid cooling equipment and gas source equipment, and the wire connectors of these equipment are installed on the quick interface 25. The platform 2 is moved to the designated working position through the universal wheel 23, and the four legs 22 are pulled out to support the platform 2. The wire of the power supply is connected to the quick interface 25 to power the equipment, the output control line of the welding gun control equipment is electrically connected to the welding gun 3, the liquid cooling pipeline of the liquid cooling equipment is connected to the welding gun 3, and the gas source pipeline of the gas source equipment is connected to the welding gun 3.

[0043] Manually pull the welding gun 3 to adjust it to the specified position. During this process, the first connecting rod 12 rotates around the joint support 11, and the middle joint 13 rotates around the end of the first connecting rod 12. The first connecting rod 12 is tightened by the first locking handle 121 so that the first connecting rod 12 no longer rotates around the joint support 11. The middle joint 13 is tightened by the second locking handle 122 so that the middle joint 13 no longer rotates around the end of the first connecting rod 12. The connecting member 151 is rotated around the position where the connecting member 151 is connected to the end joint 15, and the welding nozzle of the welding gun 3 is adjusted to a suitable position. The connecting member 151 is tightened by the third locking handle 152. If the height of the welding gun 3 needs to be adjusted, the bolts connecting the middle joint 13 and the second connecting rod 14 can also be loosened, and the second connecting rod 14 is rotated to adjust the angle between the second connecting rod 14 and the horizontal direction. The bolts are tightened after the welding gun 3 is adjusted to a suitable height.

[0044] After the power is turned on, the welding gun 3 starts to work, the welding gun control device controls the welding gun 3 to work through the output control line, the liquid cooling device dissipates heat for the welding gun 3 through the liquid cooling pipeline, and the gas source device provides protective gas for the welding process through the gas source pipeline. When the entire workstation structure needs to be moved to another working position, the power can be turned off, the four legs 22 can be folded, and the stand 2 can be moved to another designated working position, and the welding gun 3 can be adjusted again. After the welding gun 3 is adjusted to a suitable position, the power can be turned on again to work.

[0045] After the welding gun 3 finishes working, turn off the power supply, disconnect the quick interface 25 from the power wire, loosen the first locking handle 121 and the second locking handle 122, manually pull the welding gun 3 to adjust it to a suitable position above the stand 2, retract the four legs 22, and move the stand 2 to the designated storage position through the universal wheels 23.

[0046] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The shapes of the various components in the drawings are schematic, and certain differences from their actual shapes are not excluded. The drawings are only used to illustrate the principles of the present invention and are not intended to limit the present invention.

[0048] Although the utility model is disclosed in detail with reference to the accompanying drawings, it should be understood that these descriptions are merely exemplary and are not intended to limit the application of the utility model. The protection scope of the utility model is defined by the appended claims and may include various modifications, alterations and equivalents made to the utility model without departing from the protection scope and spirit of the utility model.

Claims

1. A movable welding workstation structure, characterized in that: The movable welding workstation structure comprises an articulated arm (1) and a stand (2), wherein one end of the articulated arm (1) is fixed to the upper surface of the stand (2), and the other end is connected to a welding gun (3); The articulated arm (1) comprises an articulated support (11), a first connecting rod (12), a middle joint (13), a second connecting rod (14) and an end joint (15); the articulated support (11) is fixed to the upper surface of the platform (2); one end of the first connecting rod (12) is slidably connected to the articulated support (11), and the other end is slidably connected to the middle joint (13); one end of the second connecting rod (14) is fixedly connected to the middle joint (13), and the other end is fixedly connected to the end joint (15); the welding gun (3) is mounted on the end joint (15); The stand (2) comprises a frame structure (21) and an equipment cabinet (24); the equipment cabinet (24) is fixed inside the frame structure (21) and is used to install electrical equipment; the welding gun (3) is electrically connected to the electrical equipment.

2. The movable welding workstation structure according to claim 1, characterized in that: The joint support (11) is fixed to the upper surface of the platform (2) by bolts, and a first support shaft (111) and a first bearing (112) are arranged at the upper end of the joint support (11), and the first bearing (112) is sleeved on the first support shaft (111). One end of the first connecting rod (12) is fixedly connected to the first bearing (112), and the first connecting rod (12) is freely rotatable around the joint support (11).

3. The movable welding workstation structure according to claim 1, characterized in that: A second support shaft (131) and a second bearing (132) are arranged at the lower end of the middle joint (13); the second bearing (132) is sleeved on the second support shaft (131); the other end of the first connecting rod (12) not connected to the joint support (11) is fixedly connected to the second bearing (132); and the middle joint (13) is freely rotatable around the end of the first connecting rod (12).

4. The movable welding workstation structure according to claim 1, characterized in that: A first locking handle (121) is provided at a position on the first connecting rod (12) connected to the joint support (11) for tightening the first connecting rod (12) after the position adjustment is completed, and a second locking handle (122) is provided at a position on the first connecting rod (12) connected to the middle joint (13) for tightening the middle joint (13) after the position adjustment is completed.

5. The movable welding workstation structure according to claim 1, characterized in that: A connecting piece (151) and a third locking handle (152) are provided on the terminal joint (15); the connecting piece (151) is fixedly connected to the welding gun (3); the connecting piece (151) rotates around the position where it is connected to the terminal joint (15); and the third locking handle (152) is used to tighten the connecting piece (151) after the position adjustment is completed.

6. The movable welding workstation structure according to claim 1, characterized in that: The frame structure (21) comprises an upper end plate (211) and a lower end plate (212); a mounting hole for mounting the articulated arm (1) is arranged on the upper surface of the upper end plate (211); and the equipment cabinet (24) is fixed on the lower end plate (212) and is located between the upper end plate (211) and the lower end plate (212).

7. The movable welding workstation structure according to claim 6, characterized in that: The platform (2) further comprises a universal wheel (23) and a support leg (22); the universal wheel (23) is mounted on the bottom of the lower end plate (212); mounting channels (213) are arranged on both sides of the interior of the frame structure (21) near the upper end plate (211); the support leg (22) is slidably connected to the mounting channel (213); the support leg (22) is extended when the platform (2) is working, and the support leg (22) is retracted when the platform (2) is transferred.

8. The movable welding workstation structure according to claim 6, characterized in that: The stand (2) also includes a quick interface (25), which is fixed on the lower end plate (212) and located on one side of the equipment cabinet (24), and the wires of the power supply are connected to the wires of the electrical equipment through the quick interface (25).

9. The movable welding workstation structure according to claim 1, characterized in that: The articulated arm (1) further comprises a gas spring (16), one end of the gas spring (16) being fixedly connected to the second connecting rod (14), and the other end of the gas spring (16) being fixedly connected to the middle joint (13), and the gas spring (16) being used to provide support for the second connecting rod (14).

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