GIS bus conductor welding device

Abstract

The utility model discloses a GIS bus conductor welding device. Relates to the technical field of GIS bus conductors. Comprising a machine tool base, a spindle box is arranged at one end of the top of the machine tool base, and a tailstock is arranged at the other end; the silver-plated terminal machining device further comprises a pair of gap control clamps, a pair of clamp walking air cylinders and an electric lifting table, the inner side of the spindle box is connected with a silver-plated terminal through clamping jaws on a four-jaw chuck, a tail jacking air cylinder is arranged at the top of the tailstock, and a push rod, facing the side of the spindle box, of the tail jacking air cylinder is connected with the other silver-plated terminal through a tail rotating disc. The clamp walking air cylinders and the electric lifting table are arranged on the machine tool base, the electric lifting table is located between the pair of clamp walking air cylinders, and the electric lifting table is used for driving the conductor tube to ascend and descend, so that the conductor tube is located between the pair of silver-plated terminals; according to the utility model, the groove is welded by automatic welding, so that the welding reliability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of GIS busbar conductors, in particular to a GIS busbar conductor welding device. Background Art

[0002] GIS busbar conductors are used to transmit high currents in the kiloampere range. They are usually welded together by tubular silver-plated terminals and conductor tubes. Their current carrying capacity is proportional to the cross-sectional area of ​​the conductor. If the effective cross-sectional area of ​​a conductor is too small, the temperature rise at that location will be greater than that at other locations during operation. In severe cases, this may cause the conductor to fail.

[0003] Figure 5 For the existing assembly welding form, in order to ensure the concentricity of the silver-plated terminals at both ends, only Figure 6 middle The assembly form has no gaps and needs to be fixed by spot welding. Due to the low surface temperature of the conductor during spot welding, it is easy to cause Figure 7 middle At the same time, since a 2mm straight section is reserved at the bottom of the welding groove, if there is no gap, the conductor may not be fully welded throughout the entire weld bead, which greatly reduces the effective cross-sectional area of ​​the conductor welding point. Utility Model Content

[0004] In view of the above problems, the utility model provides a GIS busbar conductor welding device with a simple structure and improved processing reliability.

[0005] The technical solution of the utility model is: a GIS busbar conductor welding device, comprising a machine tool base, wherein a spindle box is provided at one end of the top of the machine tool base, and a tailstock is provided at the other end;

[0006] It also includes a pair of gap control fixtures, a pair of fixture travel cylinders and an electric lifting platform.

[0007] The inner side of the spindle box is connected to a silver-plated terminal through the clamping claws on the four-jaw chuck.

[0008] A tail top cylinder is provided on the top of the tailstock, and a push rod on the side of the tail top cylinder facing the spindle box is connected to another silver-plated terminal through a tail turntable;

[0009] The fixture travel cylinder and the electric lifting platform are respectively arranged on the machine tool base, and the electric lifting platform is located between a pair of fixture travel cylinders.

[0010] The electric lifting platform is used to drive the conductor tube to move up and down so that the conductor tube is located between a pair of silver-plated terminals;

[0011] The fixture travel cylinder corresponds to the gap control fixture one by one and drives the gap control fixture;

[0012] A pair of gap control fixtures are used to control the distance between the conductor tube and a pair of silver-plated terminals respectively.

[0013] Annular grooves are provided on the inner sides of both ends of the conductor tube.

[0014] An annular protrusion is provided on one end of the silver-plated terminal facing the conductor tube, and the protrusion is used to be connected in the annular groove.

[0015] The end of the conductor tube is located outside the annular groove and has an inclined section 1 and a straight section 1 in sequence from outside to inside in the cross section.

[0016] The end of the silver-plated terminal is located outside the protrusion and has a second inclined segment and a second straight segment in sequence from outside to inside in the cross section.

[0017] The inclined section 1 of the conductor tube and the inclined section 2 of the silver-plated terminal are arranged opposite to each other to form a V-shaped welding groove;

[0018] The lengths of the straight line segment 1 and the straight line segment 2 are the same.

[0019] The gap control fixture includes an annular body, the inner side of which is provided with a V-shaped gap block.

[0020] The V-shaped gap block is used to be connected in the V-shaped welding groove, so that a gap is formed between the straight line segment 1 of the conductor tube and the straight line segment 2 of the silver-plated terminal.

[0021] The electric lifting platform has a pair.

[0022] A pair of supporting rollers is provided on the top of the electric lifting platform.

[0023] The tail top cylinder is a self-locking cylinder.

[0024] During operation, after the tubular silver-plated terminal on the spindle box side is clamped, the fixture travel cylinder pushes the gap control fixture to coincide with the welding groove; the electric lifting platform is used to adjust the conductor tube to be concentric with the silver-plated terminal, and assemble with the silver-plated terminal; the rear end fixture travel cylinder is operated to push the gap control fixture to coincide with the welding groove of the conductor tube, the tail top cylinder is started to push the tail silver-plated terminal to coincide with the gap control fixture, the tail cylinder is locked, and the gap control fixture is removed; the groove is welded by automatic welding to ensure welding reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. In the drawings, the various parts are not necessarily drawn according to the actual scale.

[0026] Figure 1 It is a structural diagram of the utility model.

[0027] Figure 2 yes Figure 1 A top view of

[0028] Figure 3 This is a schematic diagram of the welding structure of the utility model.

[0029] Figure 4 yes Figure 3 middle A partial enlarged view of the

[0030] Figure 5 It is a schematic diagram of the welding structure of the prior art.

[0031] Figure 6 yes Figure 5 middle A partial enlarged view of the

[0032] Figure 7 yes Figure 5 middle A partial enlarged view of the

[0033] In the figure, 1 is a silver-plated terminal, 2 is a conductor tube, 21 is an annular groove, 22 is an inclined segment 1, 23 is a straight segment 1, 3 is a machine tool base, 4 is a spindle box, 5 is a four-jaw chuck, 6 is a gap control fixture, 60 is a V-shaped gap block, 7 is a tail turntable, 8 is a tail top cylinder, 9 is a protrusion, 10 is a tailstock, 11 is an electric lifting platform, 12 is a clamping claw, 13 is a fixture travel cylinder, 14 is a V-shaped welding groove, and 15 is a support roller. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this utility model. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting this utility model. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] The utility model Figure 1-4 As shown, a GIS busbar conductor welding device includes a machine tool base 3, a spindle box 4 is provided at one end of the top of the machine tool base, and a tailstock 10 is provided at the other end;

[0038] It also includes a pair of gap control fixtures 6, a pair of fixture travel cylinders 13 and an electric lifting platform 11.

[0039] The inner side of the spindle box 4 is connected to a silver-plated terminal 1 through the clamping jaws 12 on the four-jaw chuck 5.

[0040] A tail top cylinder 8 is provided on the top of the tailstock 10, and a push rod of the tail top cylinder 8 facing the spindle box is connected to another silver-plated terminal through the tail turntable 7;

[0041] The fixture travel cylinder 13 and the electric lift platform 11 are respectively arranged on the machine tool base, and the electric lift platform 11 is located between a pair of fixture travel cylinders 13.

[0042] The electric lifting platform 11 is used to drive the conductor tube 2 to move up and down so that the conductor tube 2 is located between the pair of silver-plated terminals 1;

[0043] The fixture travel cylinder 13 corresponds to the gap control fixture 6 one by one and drives the gap control fixture;

[0044] A pair of gap control fixtures 6 are used to control the distance between the conductor tube and the pair of silver-plated terminals respectively.

[0045] During operation, after the tubular silver-plated terminal on the spindle box side is clamped, the fixture travel cylinder pushes the gap control fixture to coincide with the welding groove; the electric lifting platform is used to adjust the conductor tube to be concentric with the silver-plated terminal, and assemble with the silver-plated terminal; the rear end fixture travel cylinder is operated to push the gap control fixture to coincide with the welding groove of the conductor tube, the tail top cylinder is started to push the tail silver-plated terminal to coincide with the gap control fixture, the tail cylinder is locked, and the gap control fixture is removed; the groove is welded by automatic welding to ensure welding reliability.

[0046] Annular grooves 21 are provided on the inner sides of both ends of the conductor tube 2.

[0047] The silver-plated terminal 1 is provided with an annular protrusion 9 on one end facing the conductor tube, and the protrusion is used to be connected in the annular groove.

[0048] The protrusion and annular groove ensure the reliable positioning and assembly of the conductor tube and the silver-plated terminal. In application, the axial length of the protrusion and the depth of the annular groove are greater than the reserved gap to ensure connection reliability.

[0049] The end of the conductor tube 2 is located outside the annular groove and has an inclined section 22 and a straight section 23 in sequence from outside to inside in the cross section.

[0050] The end of the silver-plated terminal is located outside the protrusion and has a second inclined segment and a second straight segment in sequence from outside to inside in the cross section.

[0051] The inclined section 1 of the conductor tube and the inclined section 2 of the silver-plated terminal are arranged opposite to each other to form a V-shaped welding groove 14;

[0052] The lengths of the straight line segment 1 and the straight line segment 2 are the same (eg, set to 2 mm).

[0053] By relatively setting the inclined section 1 and the inclined section 2, a V-shaped welding groove is formed to facilitate welding; the straight section 1 and the straight section 2 are set to facilitate the reserved gap (such as setting 2mm) through the gap control fixture, thereby improving welding reliability.

[0054] The gap control fixture 6 includes an annular body, and a V-shaped gap block 60 is provided on the inner side of the annular body.

[0055] The V-shaped gap block 60 is used to be connected in the V-shaped welding groove 14 so as to form a gap between the straight line segment 1 of the conductor tube and the straight line segment 2 of the silver-plated terminal.

[0056] During operation, the V-shaped gap block of the gap control fixture is used to be placed in the V-shaped welding groove, which is convenient and reliable for gap control.

[0057] The electric lifting platform 11 is provided in pair.

[0058] Set up a pair to improve support reliability.

[0059] A pair of supporting rollers 15 are provided on the top of the electric lifting platform.

[0060] By setting supporting rollers, it is convenient to support and the movement is reliable.

[0061] The tail top cylinder 8 is a self-locking cylinder, which is convenient for self-locking and improves stability.

[0062] During operation, the present invention uses a machine tool and a fixture for assembly, and a 2mm gap is reserved between the silver-plated terminal and the root of the conductor tube (i.e., straight line segment 1 and straight line segment 2). Simultaneously, the terminal is assembled and welded on the machine tool without the need for spot welding and fixation, thereby ensuring that the root of the groove is fully welded, thereby ensuring the effective cross-sectional area of ​​the conductor welding point.

[0063] During application, the machine tool clamping jaws and tail turntable are made of high-temperature resistant non-metallic materials, which will not damage the silver layer on the inner wall of the silver-plated terminal.

[0064] The tailstock is easy to disassemble and assemble with the machine base. Adjust the tailstock to the required position according to the conductor length and lock it.

[0065] Regarding the content disclosed in this case, the following points need to be explained:

[0066] (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design;

[0067] (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to form new embodiments;

[0068] The above are only specific implementation methods disclosed in this case, but the protection scope of this disclosure is not limited thereto. The protection scope disclosed in this case should be based on the protection scope of the claims.

Claims

1. A GIS busbar conductor welding device, comprising a machine tool base, wherein a spindle box is provided at one end of the top of the machine tool base, and a tailstock is provided at the other end; It is characterized by: It also includes a pair of gap control fixtures, a pair of fixture travel cylinders and an electric lifting platform. The inner side of the spindle box is connected to a silver-plated terminal through the clamping jaws on the four-jaw chuck. A tail top cylinder is provided on the top of the tailstock, and a push rod on the side of the tail top cylinder facing the spindle box is connected to another silver-plated terminal through a tail turntable; The fixture travel cylinder and the electric lifting platform are respectively arranged on the machine tool base, and the electric lifting platform is located between a pair of fixture travel cylinders. The electric lifting platform is used to drive the conductor tube to move up and down so that the conductor tube is located between a pair of silver-plated terminals; The fixture travel cylinder corresponds to the gap control fixture one by one and drives the gap control fixture; A pair of gap control fixtures are used to control the distance between the conductor tube and a pair of silver-plated terminals respectively.

2. A GIS busbar conductor welding device according to claim 1, characterized in that: Annular grooves are provided on the inner sides of both ends of the conductor tube. An annular protrusion is provided on one end of the silver-plated terminal facing the conductor tube, and the protrusion is used to be connected in the annular groove.

3. A GIS busbar conductor welding device according to claim 2, characterized in that: The end of the conductor tube is located outside the annular groove and has an inclined section 1 and a straight section 1 in sequence from outside to inside in the cross section. The end of the silver-plated terminal is located outside the protrusion and has a second inclined segment and a second straight segment in sequence from outside to inside in the cross section. The inclined section 1 of the conductor tube and the inclined section 2 of the silver-plated terminal are arranged opposite to each other to form a V-shaped welding groove; The lengths of the straight line segment 1 and the straight line segment 2 are the same.

4. A GIS busbar conductor welding device according to claim 3, characterized in that: The gap control fixture includes an annular body, the inner side of which is provided with a V-shaped gap block. The V-shaped gap block is used to be connected in the V-shaped welding groove, so that a gap is formed between the straight line segment 1 of the conductor tube and the straight line segment 2 of the silver-plated terminal.

5. The GIS busbar conductor welding device according to claim 1, characterized in that: The electric lifting platform has a pair.

6. The GIS busbar conductor welding device according to claim 1, characterized in that: A pair of supporting rollers is provided on the top of the electric lifting platform.

7. The GIS busbar conductor welding device according to claim 1, characterized in that: The tail top cylinder is a self-locking cylinder.

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