Variable inner diameter slag shield mechanism and slag shielding method

Abstract

The application relates to a variable-inner-diameter slag protection mechanism and a slag protection method. The mechanism comprises a baffle, the middle part of the baffle is provided with an inner hole for allowing the compressor to pass, the baffle is circumferentially divided into at least two unit plates with the inner hole axis as the center, the two ends of the unit plates are respectively connected with the adjacent ends of the adjacent unit plates through connecting pieces; at least one end of the connecting piece is fixed with the position of the connected unit plate; when each unit plate is at an inner limit position, the end parts of the adjacent unit plates are attached, the inner ends of each unit plate enclose the inner hole, and the inner hole wall is attached with the outer peripheral positioning surface of the compressor; when each unit plate is not at the inner limit position, a gap is formed between the adjacent unit plates; the inner hole diameter of the baffle of the mechanism is variable, so that the gap between the inner hole of the baffle and the outer wall of the compressor is adjustable; when the compressor is moved in or out, the inner hole diameter is enlarged; after the compressor is installed in place, the inner hole diameter is reduced, so that the baffle is attached with the outer wall of the compressor and the welding slag is blocked from splashing onto the surface of the compressor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressor welding protection, in particular to a variable inner diameter type welding slag protection mechanism and a welding slag protection method. BACKGROUND

[0002] In the welding process of air conditioner compressor production ring welding process, welding slag splashes on the surface of the compressor, and forms solid particles after cooling, which has a certain influence on the appearance, assembly quality and personnel operation safety of the subsequent process of the compressor.

[0003] Therefore, a fixed shield is used for protection during welding in the prior art. The existing fixed shield is of an integral structure and cannot be adjusted. A mounting hole for accommodating the compressor is formed in the middle of the shield. In order to ensure that the shield can be smoothly moved into and out of the compressor and avoid interference, the size of the mounting hole needs to be larger than the size of the outer wall of the compressor. Such a design makes the gap between the mounting hole and the outer wall of the compressor smaller after the shield is sleeved on the compressor, and the protection of splashing welding slag is insufficient. During welding, welding slag may still splash onto the surface of the compressor through the gap. SUMMARY

[0004] The purpose of the present application is to provide a variable inner diameter type welding slag protection mechanism and a welding slag protection method to solve the above problems.

[0005] One technical solution adopted by the present application to solve the technical problem is a variable inner diameter type welding slag protection mechanism, which comprises a baffle. A hole for accommodating the compressor is formed in the middle of the baffle. The baffle is circumferentially divided into at least two unit plates with the hole axis as the center. The two ends of each unit plate are connected to the adjacent ends of the adjacent unit plates through connecting pieces.

[0006] At least one end of the connecting piece is fixed to the position of the unit plate connected thereto.

[0007] When each unit plate is at an inner limit position, the end portions of the adjacent unit plates are in contact, the inner ends of each unit plate enclose the hole, and the hole wall is in contact with the compressor outer peripheral positioning surface. The shape of the hole wall is adapted to the shape of the compressor outer peripheral positioning surface.

[0008] When each unit plate is not at the inner limit position, a gap is formed between the adjacent unit plates.

[0009] Further, the distance between the two ends of the connecting piece does not change with the movement of the unit plate. The connecting piece is a rigid rod body. One end of the rigid rod body is hinged to one unit plate, and the other end of the rigid rod body is slidingly fitted with a track groove on another unit plate.

[0010] Further, the distance between the two ends of the connecting piece can be changed with the movement of the unit plate, the connecting piece is any one of a folding rod, a chain, a telescopic rod or a rope, and the two ends of the connecting piece are respectively hinged to adjacent unit plates.

[0011] Further, when the connecting piece is a folding rod, the two ends of the connecting piece are respectively hinged to the same side or different sides of the two adjacent unit plates.

[0012] When the connecting piece is not a folding rod, the two ends of the connecting piece are respectively hinged to the same side of the two adjacent unit plates.

[0013] Further, the unit plate is driven to move along the inner hole in the radial direction by the telescopic mechanism, the middle part of the unit plate is provided with a connecting part for connecting the telescopic mechanism, the connecting part is a connecting column or a connecting hole, and the axis of the connecting part intersects the center line of the unit plate.

[0014] Further, the telescopic mechanism is a multi-claw chuck or a multi-claw clamp jaw, and the number of claws of the multi-claw chuck or the multi-claw clamp jaw corresponds to the number of unit plates.

[0015] Further, the telescopic mechanism is installed at the end of the motion module and is driven to move by the motion module, and the motion module at least comprises a driving piece for driving the multi-claw chuck to move in the axial direction of the compressor.

[0016] Further, the end part of the side wall of the unit plate is provided with a mounting groove for accommodating the end part of the connecting piece, and when each unit plate is in the inner limit position, the connecting piece is completely accommodated in the cavity formed by the two corresponding mounting grooves.

[0017] Further, the inner wall of the inner hole is provided with a rubber pad.

[0018] Another technical solution adopted by the present application to solve the technical problem is to provide a welding slag protection method, which adopts the above-mentioned variable inner diameter type welding slag protection mechanism, and comprises the following steps:

[0019] S1: installing the baffle on the telescopic mechanism;

[0020] S2: the telescopic mechanism is elongated, driving each unit plate to move in the radial direction to the outer limit position, so that the inner diameter of the baffle is increased;

[0021] S3: the motion module drives the telescopic mechanism to move, so that the baffle is sleeved on the compressor and moved to the installation position;

[0022] S4: the telescopic mechanism is shortened, driving each unit plate to move in the radial direction to the inner limit position, so that the inner hole wall of the baffle is matched with the outer peripheral positioning surface of the compressor, the baffle is limited and fixed on the L supporting leg of the compressor in the vertical direction, then the motion module drives the telescopic mechanism to move out and separates from the corresponding unit plate;

[0023] S5: the welding operation is carried out on the compressor, and the baffle blocks slag;

[0024] S6: after the welding operation is completed, the movement module drives the telescopic mechanism to move in, so that the telescopic mechanism is connected with the corresponding unit plate, the telescopic mechanism is elongated, each unit plate is driven to move to the outer limit position along the radial direction, and the inner diameter of the baffle is increased;

[0025] S7: the movement module drives the telescopic mechanism to move, so that the baffle moves out of the compressor.

[0026] Compared with the prior art, the baffle inner hole diameter is variable, so that the gap between the baffle inner hole and the outer wall of the compressor is adjustable, the inner hole diameter is increased when the baffle moves in and out of the compressor, the inner hole diameter is decreased after the baffle is installed in place on the compressor, the baffle is attached to the outer wall of the compressor, and the splashing of the welding slag to the surface of the compressor is blocked. BRIEF DESCRIPTION OF DRAWINGS

[0027] The application will be further described below in combination with the drawings.

[0028] Figure 1 It is a schematic view of the cooperation structure of the baffle and the compressor.

[0029] Figure 2 It is a schematic view of the unit plate in the inner limit position.

[0030] Figure 3 It is a schematic view of the unit plate not in the inner limit position.

[0031] Figure 4 It is a schematic view of the structure of the installation groove provided on the unit plate.

[0032] Figure 5 It is a schematic view of the track groove structure provided on the unit plate.

[0033] Figure 6 It is a schematic view of the cooperation structure of the telescopic mechanism as the pneumatic clamping jaw and the baffle Figure 1 .

[0034] Figure 7 It is a schematic view of the cooperation structure of the telescopic mechanism as the pneumatic clamping jaw and the baffle Figure 2 .

[0035] In the drawings: 1-baffle; 2-compressor; 3-L foot; 4-inner hole; 5-unit plate; 6-connection; 7-connection part; 8-folding rod; 9-installation groove; 10-rigid rod body; 11-track groove; 12-telescopic mechanism. DETAILED DESCRIPTION

[0036] Preferred embodiments of the invention are described in more detail below; however, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the invention more thorough and complete, and to fully convey the scope of the invention to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the invention.

[0037] Example 1:

[0038] like Figures 1-5 As shown, a variable inner diameter welding slag protection mechanism includes a baffle 1, with an inner hole 4 in the middle of the baffle to allow space for the compressor 2. The baffle is divided into at least two unit plates 5 with the axis of the inner hole as the center. The two ends of the unit plates are respectively connected to the adjacent ends of the adjacent unit plates via connectors 6.

[0039] At least one end of the connector is fixed to the position of the unit plate to which it is connected;

[0040] One approach is to allow the spacing between the two ends of the connector to change as the unit plate moves;

[0041] Another option is that the spacing between the two ends of the connector does not change with the movement of the unit plate, the position of one end of the connector to the connected unit plate is fixed, and the position of the other end of the connector to the connected unit plate is variable.

[0042] When each unit plate is in the inner limit position, the ends of adjacent unit plates are in contact, the inner ends of each unit plate form an inner hole, and the inner hole wall is in contact with the outer peripheral positioning surface of the compressor, and the shape of the inner hole wall is adapted to the outer peripheral positioning surface of the compressor.

[0043] When each unit plate is not in the inner limit position, a gap is formed between adjacent unit plates.

[0044] In practical applications, the shape of the baffle is set according to specific protection requirements, and it can be a circular plate or a polygonal plate.

[0045] In this embodiment, as Figure 4 As shown, the end sidewall of the unit plate is provided with a mounting groove 9 to accommodate the end of the connector. When each unit plate is in the inner limit position, the connector is completely accommodated in the cavity formed by the two corresponding mounting grooves.

[0046] In this embodiment, a rubber pad layer is provided on the inner wall of the inner hole to avoid wear caused by hard contact.

[0047] When in use, when moving in and out of the compressor, the inner hole diameter is increased by moving the driving unit plate radially outward, so that the baffle is easily installed at the preset position of the compressor; after reaching the position, the driving unit plate is moved radially inward, so that the inner hole wall is attached to the outer peripheral positioning surface of the compressor to form a gapless cooperation, and when welding, the welding slag cannot splash to the surface of the compressor.

[0048] The inner hole diameter of the baffle can be changed, so that the gap between the inner hole of the baffle and the outer wall of the compressor is adjustable. When moving in and out of the compressor, the inner hole diameter is increased, and after being installed on the compressor, the inner hole diameter is reduced, so that the baffle is attached to the outer wall of the compressor to prevent the welding slag from splashing to the surface of the compressor.

[0049] Embodiment 2

[0050] As shown in Figure 5 , embodiment 2 provides a specific scheme that one end of the connecting piece is fixed in position with the connected unit plate, and the other end of the connecting piece is variable in position with the connected unit plate.

[0051] In this embodiment, the connecting piece is a rigid rod body 10, one end of which is hinged to a unit plate, and the other end of which is slidingly fitted with a track groove on another unit plate.

[0052] When in use, during the radial movement of the unit plate, the movable end of the rigid rod body slides along the track groove, and the hinged end of the rigid rod body swings.

[0053] Embodiment 3

[0054] As shown in Figure 2 , Figure 3 , embodiment 3 provides a specific scheme that the distance between the two ends of the connecting piece can change with the movement of the unit plate.

[0055] In this embodiment, the connecting piece is any one of a folding rod 8, a chain, a telescopic rod or a rope, and the two ends of the connecting piece are respectively hinged to adjacent unit plates.

[0056] In this embodiment, when the connecting piece is a folding rod, the two ends of the connecting piece are respectively hinged to the same side or different sides of the two adjacent unit plates; when located on different sides, the hinged ends of the two rod bodies of the folding rod are located outside the baffle;

[0057] When the connecting piece is not a folding rod, the two ends of the connecting piece are respectively hinged to the same side of the two adjacent unit plates.

[0058] When in use, during the radial movement of the unit plate, the distance between the two ends of the connecting piece can change with the movement of the unit plate, and when each unit plate is in the inner limit position, the distance between the two ends of the connecting piece is the smallest, and when each unit plate is in the outer limit position, the distance between the two ends of the connecting piece is the largest.

[0059] Embodiment 4

[0060] As Figure 6 , Figure 7 shown, embodiment 4 provides a specific driving scheme for the radial movement of the unit plates.

[0061] In this embodiment, the unit plates are driven to move radially along the inner hole by the telescopic mechanism 12; the middle part of the unit plate is provided with a connecting part 7 for connecting the telescopic mechanism, which is a connecting column or a connecting hole, and the axis of the connecting part intersects the center line of the unit plate.

[0062] In actual application, since the axis of the connecting part intersects the center line of the unit plate, the unit plate must be of a symmetrical shape, preferably a fan-shaped plate.

[0063] In actual application, in order to facilitate mutual separation, the telescopic end of the telescopic mechanism is sleeved with the connecting part along the axis.

[0064] In this embodiment, the telescopic mechanism is a multi-jaw chuck or a multi-jaw pneumatic clamping jaw, and the number of jaws of the multi-jaw chuck or the multi-jaw pneumatic clamping jaw corresponds to the number of unit plates.

[0065] In this embodiment, the telescopic mechanism is installed at the end of the motion module and is driven to move by the motion module, and the motion module at least includes a driving member for driving the multi-jaw chuck to move along the compressor axis, which can be a moving slide or a telescopic rod.

[0066] In use, the unit plates are driven to move radially by the telescopic movement of the telescopic mechanism, and the telescopic mechanism is driven to move by the motion module, so that the baffle is moved into or out of the compressor.

[0067] In actual application, the motion module can be a mechanical hand, an N-axis moving platform, an air cylinder, an electric push rod or a hydraulic cylinder.

[0068] Embodiment 5

[0069] As Figure 1 , Figure 6 , Figure 7 shown, based on embodiment 4, a slag protection method is provided.

[0070] The method comprises the following steps:

[0071] S1: installing the baffle on the telescopic mechanism;

[0072] S2: the telescopic mechanism is elongated, driving each unit plate to move radially to the outer limit position, so that the inner diameter of the baffle increases;

[0073] S3: the motion module drives the telescopic mechanism to move, so that the baffle is sleeved on the compressor and moves to the installation position;

[0074] S4: the telescopic mechanism is shortened, driving each unit plate to move to the inner limit position along the radial direction, so that the inner hole wall of the baffle plate is attached to the outer peripheral positioning surface of the compressor, the baffle plate is limited and fixed on the vertical direction on the L-shaped foot 3 of the compressor, then the movement module drives the telescopic mechanism to move out and separate from the corresponding unit plate;

[0075] S5: the welding operation is performed on the compressor, and the baffle plate is used to prevent slag;

[0076] S6: after the welding operation is completed, the movement module drives the telescopic mechanism to move in, so that the telescopic mechanism is connected with the corresponding unit plate, the telescopic mechanism is elongated, driving each unit plate to move to the outer limit position along the radial direction, so that the inner diameter of the baffle plate is increased;

[0077] S7: the movement module drives the telescopic mechanism to move, so that the baffle plate moves out of the compressor.

[0078] The relative arrangement of components and steps, numerical expressions, and values set forth in these examples are not intended to limit the scope of the present application, unless otherwise specifically stated. In all of the examples shown and discussed herein, any particular value is to be construed as merely an example, and is not to be considered limiting. Thus, other examples of the example embodiments can have different values. It is noted that like numbers and letters designate like items throughout, and any further discussion of such will not be repeated.

[0079] In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship based on the shown orientation or positional relationship, only for the convenience of describing the present application and simplifying the description, without the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0080] For the convenience of description, spatial relative terms such as "on", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the described orientation.

[0081] In addition, it needs to be pointed out that the use of "first", "second" and the like to define parts only facilitates the differentiation of corresponding parts, and the above words have no special meaning unless otherwise stated, therefore, it cannot be understood as a limitation on the protection scope of the present application.

[0082] If the present application discloses or relates to mutually fixedly connected parts or structural members, unless otherwise stated, the fixed connection can be understood as: detachable fixed connection (for example, using bolt or screw connection), but also as: non-detachable fixed connection (for example, riveting, welding), of course, the mutually fixed connection can also be replaced by an integral structure (for example, manufactured by using casting process integral forming) (obviously, except for integral forming process).

[0083] The above preferred embodiments further illustrate the purpose, technical solutions and advantages of the present application. It should be understood that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A variable inner diameter slag protection mechanism, comprising a baffle plate, the baffle plate having a central hole in the middle for accommodating a compressor, characterized in that: the baffle plate is circumferentially divided into at least two unit plates with the central hole axis as the center; the two ends of each unit plate are connected to the adjacent ends of the adjacent unit plates via connecting pieces; at least one end of each connecting piece is fixed to the unit plate; when each unit plate is at an inner limit position, the ends of the adjacent unit plates are in contact, the inner ends of each unit plate enclose the central hole, and the central hole wall is in contact with the outer peripheral positioning surface of the compressor; when each unit plate is not at the inner limit position, a gap is formed between the adjacent unit plates; each unit plate is driven to move radially along the central hole by a telescopic mechanism; the middle of each unit plate is provided with a connecting part for connecting the telescopic mechanism; the telescopic mechanism is a multi-jaw chuck or a multi-jaw clamp, and the number of jaws of the multi-jaw chuck or the multi-jaw clamp corresponds to the number of unit plates; the telescopic mechanism is installed at the end of a motion module and is driven to move by the motion module, and the motion module at least includes a driving piece for driving the multi-jaw chuck or the multi-jaw clamp to move along the axial direction of the compressor; the distance between the two ends of each connecting piece does not change with the movement of the unit plates, each connecting piece is a rigid rod body, one end of the rigid rod body is hinged to one unit plate, and the other end of the rigid rod body is slidingly fitted in a track groove on another unit plate; the distance between the two ends of each connecting piece can change with the movement of the unit plates, and each connecting piece is any one of a folding rod, a chain, a telescopic rod, or a rope, and the two ends of each connecting piece are respectively hinged to the adjacent unit plates; when the connecting piece is a folding rod, the two ends of the connecting piece are hinged to the same side or different sides of the adjacent two unit plates; when the connecting piece is not a folding rod, the two ends of the connecting piece are hinged to the same side of the adjacent two unit plates; the end side wall of each unit plate is provided with a mounting groove for accommodating the end of the connecting piece, and when each unit plate is at the inner limit position, the connecting piece is completely accommodated in the cavity formed by the two corresponding mounting grooves; the inner wall of the central hole is provided with a rubber pad; and the method comprises the following steps: S1: installing the baffle plate on the telescopic mechanism; S2: extending the telescopic mechanism to drive each unit plate to move radially to an outer limit position, so as to increase the inner diameter of the baffle plate; S3: moving the telescopic mechanism by the motion module, so that the baffle plate is sleeved on the compressor and moved to the installation position; S4: shortening the telescopic mechanism to drive each unit plate to move radially to the inner limit position, so that the central hole wall of the baffle plate is in contact with the outer peripheral positioning surface of the compressor, the baffle plate is limited and fixed on the L support of the compressor in the vertical direction, then the telescopic mechanism is moved out by the motion module and separated from the corresponding unit plate; S5: performing welding work on the compressor, and the baffle plate blocks slag; S6: after the welding work is completed, the telescopic mechanism is moved in by the motion module, the telescopic mechanism is connected with the corresponding unit plate, the telescopic mechanism is extended, and each unit plate is driven to move radially to the outer limit position, so as to increase the inner diameter of the baffle plate; and S7: moving the telescopic mechanism by the motion module, so that the baffle plate moves out of the compressor. ​ ​ ​ ​ ​ ​ ​ 2. The variable inner diameter weld slag protection mechanism of claim 1, wherein: ​ 3. The variable inner diameter weld slag protection mechanism of claim 1, wherein: ​ 4. The variable inner diameter flux shield mechanism of claim 3, wherein: ​ ​ 5. The variable inner diameter flux guard mechanism of any of claims 1-4, wherein: ​ 6. The variable inner diameter flux guard mechanism of claim 5, wherein: ​ 7. A method for protecting slag, using the variable inner diameter type slag protecting mechanism according to claim 1, characterized by, ​ ​ ​ ​ ​ ​ ​ ​

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