Welding, positioning and clamping device for semiconductor air pipe thin-wall circular pipe type workpiece

Abstract

The utility model discloses a welding, positioning and clamping device for semiconductor air duct thin-wall circular tube type workpieces, and belongs to the technical field of welding tools. Comprising a supporting base, an inner supporting cylinder used for sleeving a workpiece is arranged on the supporting base, and two supporting positioning pieces are symmetrically arranged on the supporting base along the central axis of the inner supporting cylinder; the supporting positioning piece comprises a supporting column connected to the supporting base, the bottom of the supporting column is rotationally connected with a pressing plate, and the top of the supporting column is in threaded connection with an adjusting screw rod which can abut against the pressing plate till the edge of one end of the adjusting screw rod is overturned to abut against the surface of the inner supporting cylinder. A plurality of positioning pins are movably inserted in the inner supporting cylinder in the axial direction of the inner supporting cylinder, and the center axes of the positioning pins arranged on the inner supporting cylinder in a penetrating mode coincide with the symmetrical faces of the two supporting and positioning pieces. The welding, positioning and clamping device for the semiconductor air duct thin-wall circular tube type workpiece solves the problems that in the prior art, workpiece welding operation is tedious, positioning is difficult, and products are prone to deformation.

Description

Technical Field

[0001] This utility model belongs to the field of welding tooling technology, specifically relating to a welding positioning and clamping device for thin-walled round tube workpieces in semiconductor air ducts. Background Technology

[0002] In the production process of workpieces, it is usually necessary to bend the sheet metal, then manually splice the bent sheets together before welding. This welding method has certain drawbacks: manual splicing and spot welding is cumbersome, inefficient, and makes it difficult to ensure the uniformity and aesthetics of the weld. Furthermore, due to the lack of effective stress control methods, product deformation is easily caused, seriously affecting product quality and dimensional accuracy. Even when using manual splicing and partial spot welding followed by robotic welding, certain drawbacks remain. In the workpiece splicing and positioning stage, manual operation makes it difficult to achieve high-precision positioning and control of the weld, causing the product to easily shift during welding, leading to uncontrollable product deformation and compromised weld quality.

[0003] Therefore, there is an urgent need for a welding positioning and clamping device for thin-walled round tubes of semiconductor air ducts that can improve the accuracy and quality of workpiece welding. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a welding positioning and clamping device for thin-walled round tube workpieces of semiconductor air ducts, so as to solve the problems of cumbersome workpiece welding operation, difficult positioning, and easy product deformation in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a welding positioning and clamping device for thin-walled round tube workpieces of semiconductor air ducts, including a support base, an inner support cylinder for sleeved workpieces is provided on the support base, and two support positioning members are symmetrically arranged on the support base along the central axis of the inner support cylinder.

[0006] The support positioning component includes a support column connected to the support base, a pressure plate rotatably connected to the bottom of the support column, and an adjusting screw threaded through and threaded to the top of the support column, which can abut against the pressure plate until one end edge of the screw flips to contact the surface of the inner support cylinder.

[0007] The inner support cylinder is movably inserted with multiple positioning pins along its axial direction, and the central axes of the multiple positioning pins passing through the inner support cylinder coincide with the symmetrical planes of the two support positioning members.

[0008] Optionally, a copper liner is embedded along the central axis of the outer periphery of the inner support cylinder, the positioning pin is movably inserted through the copper liner, and the surface of the copper liner through which the positioning pin is inserted is arc-shaped.

[0009] Optionally, one edge of the pressure plate can be flipped to abut against the surface of the copper backing strip.

[0010] Optionally, when the pressure plate of the two supporting positioning members is flipped to abut against the workpiece sleeved on the inner support cylinder on one side edge, a gap for welding is reserved between the corresponding pressure plates of the two supporting positioning members.

[0011] Optionally, the pressure plate can be flipped to the side edge that abuts against the surface of the inner support cylinder and is provided with an arc-shaped chamfer.

[0012] Optionally, the support column includes a column body connected to the support base and a plurality of connecting blocks that are detachably connected to the column body by bolts, and each connecting block is rotatably connected to the pressure plate.

[0013] Optionally, the pressure plate is provided with an inclined chamfer on the side adjacent to and away from the surface of the inner support cylinder that can be flipped to abut against the surface of the inner support cylinder.

[0014] Optionally, one end of the adjusting screw that can abut against the pressure plate is spherical, and the spherical end of the adjusting screw can be movably embedded in and slidably connected to the pressure plate.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This technical solution, through the cooperation between the inner support cylinder, the positioning pin and the supporting positioning component, enables one of the welding edges on the workpiece to be accurately positioned by the positioning pin that is movably inserted into the inner support cylinder, while the other welding edge on the workpiece can also be accurately positioned by the welding edge that has been accurately positioned. At the same time, the workpiece is fixed by the pressure plate that can apply pressure to the workpiece, thus providing a good foundation for subsequent workpiece welding and ensuring the welding accuracy and quality of the workpiece. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the welding positioning and clamping device for thin-walled round tube workpieces of semiconductor air ducts in a preferred embodiment of this utility model;

[0018] Figure 2 This is a preferred embodiment of the present invention. Figure 1 A magnified structural diagram at point B;

[0019] Figure 3 This is a cross-sectional view of the preferred embodiment of the present invention when the adjusting screw is connected to the pressure plate;

[0020] Figure 4This is a side view of the welding positioning and clamping device for thin-walled round tube workpieces of semiconductor air ducts in a preferred embodiment of this utility model.

[0021] Among them, 1. Support base; 2. Inner support cylinder; 3. Workpiece; 4. Support column; 401. Column body; 402. Connecting block; 5. Pressure plate; 501. Arc chamfer; 502. Inclined chamfer part; 6. Adjusting screw; 7. Positioning pin; 8. Copper liner. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0023] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Example 1

[0024] like Figures 1-4 As shown, a welding positioning and clamping device for thin-walled circular tube workpieces in semiconductor ducts includes a support base 1. An inner support cylinder 2 for mounting a workpiece 3 is mounted on the support base 1, and two support positioning components are symmetrically arranged on the support base 1 along the central axis of the inner support cylinder 2. Each support positioning component includes a support column 4 connected to the support base 1. A pressure plate 5 is rotatably connected to the bottom of the support column 4, and an adjusting screw 6 is threaded through and threaded onto the top of the support column 4, capable of abutting against the pressure plate 5 until one end edge flips to contact the surface of the inner support cylinder 2. Multiple positioning pins 7 are movably inserted into the inner support cylinder 2 along its axial direction, and the central axes of the multiple positioning pins 7 passing through the inner support cylinder 2 coincide with the symmetrical plane of the two support positioning components.

[0025] Specifically, during operation, the operator first places the unwelded and bent workpiece 3 onto the inner support cylinder 2. Then, the edge of the workpiece 3 to be welded abuts against multiple positioning pins 7, making that welding edge of the workpiece 3 parallel to the central axis of the inner support cylinder 2. Next, the operator twists the adjusting screw 6 on the corresponding support positioning component, causing the pressure block corresponding to the adjusting screw 6 to flip towards the workpiece 3 until one edge of the pressure block presses against the surface of the workpiece 3 near the edge that abuts against the positioning pin 7, thus positioning and fixing that welding edge of the workpiece 3. Then, the adjusting screw 6 is removed from the inner support cylinder 2, and another welding edge of the workpiece 3 is manipulated to abut against the already positioned and fixed welding edge. The above operation is then repeated to position and fix the other welding edge of the workpiece 3. At this point, the two welding edges that need to be welded on workpiece 3 are precisely aligned and their positions remain relatively fixed. Subsequently, whether manual welding or robot welding is used, the high-precision positioning of the weld can be effectively guaranteed. At the same time, the stress changes of workpiece 3 during welding can be effectively controlled to prevent workpiece 3 from deforming during welding.

[0026] Furthermore, such as Figure 1 As shown, a copper liner 8 is embedded along the central axis of the outer periphery of the inner support cylinder 2. A positioning pin 7 is movably inserted through the copper liner 8, and the surface of the copper liner 8 through which the positioning pin 7 is inserted is arc-shaped. The arc-shaped surface of the copper liner 8 can tightly fit with the inner wall of the workpiece 3 during forming. In this technical solution, one edge of the pressure plate 5 can be flipped to abut against the surface of the copper liner 8 to ensure that the shape and bending curvature around the welding position of the workpiece 3 can meet the dimensional requirements of the finished workpiece 3. At the same time, using the copper liner 8 to support the bottom of the welding position of the workpiece 3 can also quickly reduce the temperature of the welding point of the workpiece 3, thereby effectively controlling the stress change at the welding position of the workpiece 3 and preventing the workpiece 3 from deforming during welding.

[0027] It should be noted that when the corresponding pressure plates 5 of the two support positioning components are flipped up to abut against the workpiece 3 sleeved on the inner support cylinder 2, a gap is reserved between the corresponding pressure plates 5 of the two support positioning components for welding, so as to facilitate welding operations by operators or robots. Furthermore, in this technical solution, to facilitate the operator's effective view of the welding status of the workpiece 3, such as... Figure 1 As shown, the pressure plate 5 has an inclined chamfered part 502 on the side that can be flipped to abut against the surface of the inner support cylinder 2 and is adjacent to the side that is away from the surface of the inner support cylinder 2.

[0028] Furthermore, such as Figure 2As shown, the edge of the pressure plate 5 that can be flipped to contact the surface of the inner support cylinder 2 is provided with an arc-shaped chamfer 501. The arc-shaped chamfer 501 on the pressure plate 5 can match the curvature of the workpiece 3 surface, thereby increasing the contact area between the pressure plate 5 and the workpiece 3 surface, and avoiding excessive pressure concentration on the workpiece 3 by the pressure plate 5, which would damage the surface of the workpiece 3.

[0029] In this embodiment, the support column 4 includes a column body 401 connected to the support base 1 and a plurality of connecting blocks 402 that are detachably connected to the column body 401 by bolts. Each connecting block 402 is rotatably connected to a pressure plate 5 so that the pressure plate 5 can be removed by disassembling the connecting block 402 on the column body 401, thereby facilitating the daily maintenance and upkeep of the pressure plate 5.

[0030] In this technical solution, the flipping action of the pressure plate 5 can be synchronized with the rotation action of the adjusting screw 6. Specifically, the end of the adjusting screw 6 that abuts against the pressure plate 5 is spherical, and this spherical end can be movably embedded in and slidably connected to the pressure plate 5. More specifically, the pressure plate 5 is provided with a groove that mates with the end of the adjusting screw 6. The cross-section of this groove is dovetail-shaped. Figure 3 As shown, the spherical end of the adjusting screw 6 can rotate within the groove and slide along it, without easily sliding out. Therefore, when the operator rotates the adjusting screw 6, the pressure plate 5 also moves accordingly. This allows the operator to easily move one edge of the pressure plate 5 away from the workpiece 3 by twisting the adjusting screw 6, facilitating the loading and unloading of materials.

[0031] Working principle: When using the device, the operator first places the unwelded and bent workpiece 3 onto the inner support cylinder 2. Then, the edge of the workpiece 3 to be welded is placed against multiple positioning pins 7, so that the welding edge of the workpiece 3 is parallel to the central axis of the inner support cylinder 2. Next, the adjusting screw 6 on the corresponding support positioning component is turned, so that the pressure block corresponding to the adjusting screw 6 can rotate towards the workpiece 3 until one edge of the pressure block presses against the surface of the workpiece 3 near the edge that abuts against the positioning pin 7, thus positioning and fixing the welding edge of the workpiece 3. Then, the adjusting screw 6 is removed from the inner support cylinder 2, and the other welding edge of the workpiece 3 is manipulated to abut against the already positioned and fixed welding edge. The above operation is then repeated to position and fix the other welding edge of the workpiece 3. At this point, the two welding edges on workpiece 3 that need to be welded are precisely aligned and their positions remain relatively fixed. This ensures high-precision positioning of the weld seam regardless of whether manual or robotic welding is used. It also effectively controls stress changes on workpiece 3 during welding, preventing deformation. When the welded workpiece 3 needs to be removed from the inner support cylinder 2, simply reverse the adjusting screw 6 to gradually reduce or even release the pressure exerted on workpiece 3 by the pressure plate 5. This allows the operator to directly remove workpiece 3 from the inner support cylinder 2. The entire operation is simple and quick, improving both the welding quality and efficiency of workpiece 3 while reducing the operator's workload.

[0032] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A welding positioning and clamping device for thin-walled circular tube workpieces in the form of semiconductor ducts, characterized in that: Includes a support base (1), on which an inner support cylinder (2) for fitting the workpiece (3) is provided, and two support positioning members are symmetrically arranged on the support base (1) along the central axis of the inner support cylinder (2); The support positioning component includes a support column (4) connected to the support base (1), a pressure plate (5) is rotatably connected to the bottom of the support column (4), and an adjusting screw (6) is threaded through and threaded to the top of the support column (4) so ​​that it can abut against the pressure plate (5) until one end edge flips to abut against the surface of the inner support cylinder (2). The inner support cylinder (2) is movably inserted with multiple positioning pins (7) along its axial direction. The central axes of the multiple positioning pins (7) passing through the inner support cylinder (2) coincide with the symmetrical planes of the two support positioning members.

2. The semiconductor duct thin-walled round tube welding positioning and clamping device according to claim 1, characterized in that: The inner support cylinder (2) is provided with a copper liner (8) embedded along its central axis on its outer periphery. The positioning pin (7) is movably inserted through the copper liner (8), and the surface of the copper liner (8) through which the positioning pin (7) is inserted is arc-shaped.

3. The semiconductor duct thin-walled round tube welding positioning and clamping device according to claim 2, characterized in that: One edge of the pressure plate (5) can be flipped to contact the surface of the copper strip (8).

4. The semiconductor duct thin-walled round tube welding positioning and clamping device according to claim 1, characterized in that: When the pressure plate (5) of the two support positioning members flips to one side edge and abuts against the workpiece (3) sleeved on the inner support cylinder (2), a gap for welding is reserved between the pressure plates (5) of the two support positioning members.

5. The semiconductor duct thin-walled round tube welding positioning and clamping device according to claim 1, characterized in that: The pressure plate (5) has an arc-shaped chamfer (501) on one side edge that can be flipped to abut against the surface of the inner support cylinder (2).

6. The semiconductor duct thin-walled round tube welding positioning and clamping device according to claim 1, characterized in that: The support column (4) includes a column (401) connected to the support base (1) and a plurality of connecting blocks (402) that are detachably connected to the column (401) by bolts. Each connecting block (402) is rotatably connected to the pressure plate (5).

7. The semiconductor duct thin-walled round tube welding positioning and clamping device according to claim 1, characterized in that: An inclined chamfer (502) is provided on the side of the pressure plate (5) that is adjacent to the side edge that can be flipped to abut against the surface of the inner support cylinder (2) and away from the surface of the inner support cylinder (2).

8. The semiconductor duct thin-walled round tube welding positioning and clamping device according to claim 1, characterized in that: The end of the adjusting screw (6) that can abut against the pressure plate (5) is spherical, and the spherical end of the adjusting screw (6) can be movably embedded and slidably connected to the pressure plate (5).

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