Small automatic welding head for automobile body in white

Abstract

The utility model discloses an automobile body-in-white small automatic welding head which comprises a welding head body installed at the front end of a mechanical arm, a welding wire used for assisting welding is arranged on the welding head body, and the welding head further comprises a connecting assembly arranged on the outer side of the welding head body and used for assisting stable conveying of the welding wire. The connecting assembly comprises a connecting plate arranged on the outer side of the welding head body. According to the small automatic welding head for the automobile body-in-white, when the small automatic welding head is used for welding the automobile body-in-white, one end of a welding wire penetrates through the sliding hole of the connecting plate and the mounting ring in sequence, and in the welding wire conveying process, the supporting assembly and the rolling assembly are matched with each other, so that the welding wire can be automatically welded. According to the automatic welding device, the welding wire can be stably conveyed, meanwhile, the conveyed welding wire can be extruded and supported, the situation that the welding wire is bent due to the fact that the outer diameter of the welding wire is small and the deformation resistance of the welding wire is affected is avoided, and high-quality welding operation of a small automatic welding head on an automobile body in white is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile body-in-white processing, and specifically relates to a small automatic welding head for automobile body-in-white. Background Technique

[0002] During the welding process of automobile body-in-white, there are many complex welding positions and inaccessible corners, and a small automatic welding head needs to be used to achieve flexible welding of automobile body-in-white and meet various processing requirements; during the welding process of automobile body-in-white using a small automatic welding head, due to the small outer diameter of the welding wire conveyed on the small automatic welding head, under the influence of its own anti-deformation ability, the welding wire conveyed towards the welding head is prone to deformation and bending, affecting the high-quality welding operation of the small automatic welding head for automobile body-in-white.

[0003] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0004] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:

[0005] A small automatic welding head for automobile body-in-white includes a welding head body installed at the front end of a robotic arm. A welding wire for assisting welding is arranged on the welding head body. A connecting component for stably conveying the welding wire is further arranged outside the welding head body. The connecting component includes a connecting plate arranged outside the welding head body. The connecting plate and the welding head body are installed and connected through a fixing plate. A sliding hole for the welding wire to pass through and be connected is opened on the connecting plate. An installation ring is arranged on one side of the connecting plate. The welding wire passes through the installation ring. A supporting component for supporting during the conveying of the welding wire is arranged on the installation ring. An adjusting component for position adjustment and a guiding component for guiding during the adjustment process are arranged between the installation ring and the connecting plate.

[0006] The supporting component includes a plurality of groups of installation grooves opened on the inner side of the installation ring. Each group of installation grooves is arranged in a circular array. A supporting plate for abutting against the outer side of the welding wire is connected to the installation groove through an elastic component.

[0007] An inclined surface for abutting against and driving the end of the welding wire is opened on one side of each group of supporting plates.

[0008] A rolling component for assisting the conveying of the welding wire is arranged on the supporting plate. The rolling component includes a spherical groove opened on the side of the supporting plate abutting against the welding wire. A ball is rotatably connected to the spherical groove.

[0009] The elastic component includes multiple groups of first sleeves fixed inside the installation groove. A first sliding rod is slidably connected to the first sleeve. One end of the first sliding rod is fixed to the support plate. A spring is sleeved outside the first sleeve, and two ends of the spring are respectively abutted against the installation groove and the support plate.

[0010] The adjusting component includes a threaded tube rotatably connected to the connecting plate. A threaded rod is in threaded engagement with the threaded tube. One end of the threaded rod is fixed to one side of the mounting ring.

[0011] The guiding component includes two groups of second sleeves fixed to the connecting plate. The two groups of second sleeves are symmetrically arranged on both sides of the threaded tube. A second sliding rod is slidably connected to the two groups of second sleeves. One end of the second sliding rod is fixed to one side of the mounting ring.

[0012] The utility model has the following beneficial effects compared with the prior art:

[0013] During the process of using the small automatic welding head of the automobile body-in-white of the utility model to weld the automobile body-in-white, one end of the welding wire passes through the sliding hole of the connecting plate and the mounting ring in sequence. During the conveying process of the welding wire, through the mutual cooperation of the supporting component and the rolling component, the welding wire can be stably conveyed while being extruded and supported, avoiding bending due to the influence of the small outer diameter size of the welding wire on its own anti-deformation ability, and ensuring the high-quality welding operation of the small automatic welding head for the automobile body-in-white.

[0014] The following further describes the specific implementation manners of the utility model in detail with reference to the drawings. Description of the Drawings

[0015] In the drawings:

[0016] Figure 1 is the overall external structure schematic diagram of the utility model;

[0017] Figure 2 is the structural schematic diagram of the connecting component, adjusting component and guiding component of the utility model;

[0018] Figure 3 is the structural schematic diagram of the supporting component and elastic component of the utility model.

[0019] In the figure: 101 - welding head body; 102 - welding wire; 201 - fixing plate; 202 - connecting plate; 203 - sliding hole; 3 - mounting ring; 401 - installation groove; 402 - support plate; 403 - inclined surface; 501 - spherical groove; 502 - ball; 601 - first sleeve; 602 - first sliding rod; 603 - spring; 701 - threaded tube; 702 - threaded rod; 801 - second sleeve; 802 - second sliding rod. Detailed implementation mode

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0021] As Figures 1 to 3 shown, a small automatic welding head for an automobile white body includes a welding head body 101 installed at the front end of a robotic arm, and a welding wire 102 for assisting welding is arranged on the welding head body 101;

[0022] It should be noted here that during the welding process, the welding wire 102 is conveyed by a wire feeder. As a conventional technical means in the technical field, its working principle and operation method are relatively mature, and no further elaboration will be made here;

[0023] It further includes a connection assembly arranged outside the welding head body 101 for assisting in the stable conveyance of the welding wire 102. The connection assembly includes a connecting plate 202 arranged outside the welding head body 101. The connecting plate 202 and the welding head body 101 are installed and connected through a fixing plate 201. A sliding hole 203 for the welding wire 102 to pass through and be connected is formed on the connecting plate 202. An installation ring 3 is arranged on one side of the connecting plate 202. The welding wire 102 passes through the installation ring 3. A support assembly for supporting the welding wire 102 during conveyance is arranged on the installation ring 3. An adjustment assembly for position adjustment and a guiding assembly for guiding during the adjustment process are arranged between the installation ring 3 and the connecting plate 202;

[0024] During the process of welding and processing the automobile white body with the small automatic welding head, one end of the welding wire 102 passes through the sliding hole 203 of the connecting plate 202 and the installation ring 3 in sequence. During the conveyance of the welding wire 102, through the mutual cooperation of the support assembly and the rolling assembly, the welding wire 102 can be stably conveyed while being squeezed and supported, avoiding bending due to the influence of the small outer diameter size of the welding wire 102 on its own anti-deformation ability, and ensuring high-quality welding operation of the small automatic welding head for the automobile white body.

[0025] The support assembly includes multiple groups of mounting grooves 401 formed inside the mounting ring 3. Each group of mounting grooves 401 is arranged in a circular array. A support plate 402 for abutting and supporting the outer side of the welding wire 102 is connected to the mounting groove 401 through an elastic component. When the welding wire 102 passes through the mounting ring 3, the front end of the welding wire 102 abuts against the inclined surfaces 403 on each group of support plates 402. During the abutting process, each group of support plates 402 is pushed to move inwardly and contract towards the inside of the mounting groove 401. After the welding wire 102 passes through the mounting ring 3, through the elastic component, the balls 502 on the front sides of each group of support plates 402 are pushed to abut against the outer side of the welding wire 102.

[0026] On one side of each group of support plates 402, an inclined surface 403 for abutting and driving the end of the welding wire 102 is formed. When the welding wire 102 passes through the mounting ring 3, the front end of the welding wire 102 abuts against the inclined surfaces 403 on each group of support plates 402. During the abutting process, each group of support plates 402 is pushed to move inwardly and contract towards the inside of the mounting groove 401.

[0027] A rolling component for assisting the conveyance of the welding wire 102 is provided on the support plate 402. The rolling component includes a spherical groove 501 formed on the side of the support plate 402 that abuts against the welding wire 102. A ball 502 is rotatably connected to the spherical groove 501. During the conveyance of the welding wire 102, the elastic component pushes the balls 502 on each group of support plates 402 to keep abutting against the outer side of the welding wire 102. Through the rotational action of the balls 502 inside the spherical groove 501 and the abutting and squeezing action of the balls 502 against the outer side of the welding wire 102, the welding wire 102 can be stably conveyed while being squeezed and supported during conveyance.

[0028] The elastic component includes multiple groups of first sleeves 601 fixed inside the mounting groove 401. A first sliding rod 602 is slidably connected to the first sleeve 601. One end of the first sliding rod 602 is fixed to the support plate 402. A spring 603 is sleeved outside the first sleeve 601. The two ends of the spring 603 respectively abut against the mounting groove 401 and the support plate 402. Through the multiple groups of first sleeves 601 and first sliding rods 602, the telescopic movement of the support plate 402 is facilitated. Through the spring 603, it is convenient to squeeze and push the contracted support plate 402.

[0029] The adjusting component includes a threaded tube 701 rotatably connected to the connecting plate 202, and a threaded rod 702 is threadedly engaged with the threaded tube 701. One end of the threaded rod 702 is fixed to one side of the mounting ring 3. The guiding component includes two groups of second sleeves 801 fixed to the connecting plate 202. The two groups of second sleeves 801 are symmetrically arranged on both sides of the threaded tube 701. A second sliding rod 802 is slidably connected to the two groups of second sleeves 801. One end of the second sliding rod 802 is fixed to one side of the mounting ring 3. When the threaded tube 701 is rotated, during the rotation of the threaded tube 701, through the meshing transmission between the threaded tube 701 and the threaded rod 702 and the sliding guiding action of the second sleeve 801 and the second sliding rod 802, the stressed mounting ring 3 moves to adjust the use position of the mounting ring 3. By adjusting the position of the mounting ring 3, it is convenient to support different positions of the welding wire 102.

[0030] During the process of welding the automotive body-in-white using a small automatic welding head, one end of the welding wire 102 is sequentially passed through the sliding hole 203 of the connecting plate 202 and the mounting ring 3. When the welding wire 102 passes through the mounting ring 3, the front end of the welding wire 102 abuts against the inclined surfaces 403 on each group of support plates 402. During the abutting process, each group of support plates 402 is pushed to move inwardly towards the inside of the mounting groove 401 under force. After the welding wire 102 passes through the mounting ring 3, through the elastic component, the balls 502 on the front sides of each group of support plates 402 are pushed to abut against the outer side of the welding wire 102.

[0031] After the welding wire 102 is inserted, through the cooperation of the external wire feeder for driving the welding wire 102 and the welding head body 101, welding treatment is performed on the corresponding position of the automotive body-in-white. During the transportation of the welding wire 102, the elastic component pushes the balls 502 on each group of support plates 402 to keep abutting against the outer side of the welding wire 102. Through the rotation of the balls 502 inside the spherical grooves 501 and the abutting and squeezing action between the balls 502 and the outer side of the welding wire 102, while the welding wire 102 can be stably transported, the transported welding wire 102 is squeezed and supported to prevent the welding wire 102 from bending due to the influence of its small outer diameter size and its own anti-deformation ability, ensuring high-quality welding operation of the small automatic welding head for the automotive body-in-white.

Claims

1. A small automatic welding head for automobile body in white, comprising: A welding head body (101) installed at the front end of the robot arm, wherein a welding wire (102) for auxiliary welding is arranged on the welding head body (101); It is characterized by further comprising: A connection component is arranged on the outside of a welding head body (101) for assisting in the stable conveying of a welding wire (102), the connection component comprising a connection plate (202) arranged on the outside of the welding head body (101), the connection plate (202) and the welding head body (101) are connected and mounted via a fixing plate (201), a sliding hole (203) for the welding wire (102) to pass through and connect is provided on the connection plate (202), a mounting ring (3) is provided on one side of the connection plate (202), the welding wire (102) is passed through the mounting ring (3), a support component for supporting the welding wire (102) during conveying is provided on the mounting ring (3), an adjustment component for position adjustment and a guide component for guiding during the adjustment process are provided between the mounting ring (3) and the connection plate (202).

2. The small-sized automatic welding head for automobile body in white according to claim 1 is characterized in that: The support assembly comprises a plurality of groups of mounting grooves (401) provided on the inner side of the mounting ring (3), each group of the mounting grooves (401) being arranged in a ring array, and a support plate (402) for supporting against the outer side of the welding wire (102) is connected to the mounting grooves (401) via an elastic assembly.

3. The small-sized automatic welding head for automobile body in white according to claim 2 is characterized in that: One side of each group of the support plates (402) is provided with an inclined surface (403) for abutting against the end of the welding wire (102) for transmission.

4. The small-sized automatic welding head for automobile body in white according to claim 2, characterized in that: The support plate (402) is provided with a rolling assembly for assisting the conveyance of the welding wire (102), the rolling assembly comprising a spherical groove (501) provided on the support plate (402) on a side abutting against the welding wire (102), and a ball (502) is rotatably connected to the spherical groove (501).

5. The small-sized automatic welding head for automobile body in white according to claim 2 is characterized in that: The elastic component includes a plurality of first sleeves (601) fixed inside the mounting groove (401), a first slide bar (602) being slidably connected to the first sleeve (601), one end of the first slide bar (602) being fixed to the support plate (402), a spring (603) being sleeved on the outer side of the first sleeve (601), and two ends of the spring (603) being respectively disposed against the mounting groove (401) and the support plate (402).

6. The small-sized automatic welding head for automobile body in white according to claim 1, characterized in that: The adjustment assembly comprises a threaded tube (701) rotatably connected to the connecting plate (202), a threaded rod (702) being threadedly engaged with the threaded tube (701), and one end of the threaded rod (702) is fixed to one side of the mounting ring (3).

7. The small-sized automatic welding head for automobile body in white according to claim 5, characterized in that: The guide assembly comprises two groups of second sleeves (801) fixed on the connecting plate (202), the two groups of second sleeves (801) are symmetrically arranged on both sides of the threaded tube (701), and the two groups of second sleeves (801) are slidably connected with a second sliding rod (802), and one end of the second sliding rod (802) is fixed to one side of the mounting ring (3).

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