Positioning tool for generator parallel-connection ring welding line bank

Abstract

The invention discloses a positioning tool for a generator serial welding line bank. The positioning tool comprises a positioning device and a pressing device. The positioning device comprises positioning plates, the adjacent positioning plates are fixedly connected through arc-shaped plates, the positioning plates are provided with line bank clamping grooves used for containing line banks and parallel connection ring positioning grooves used for containing parallel connection rings, the line bank clamping grooves and the parallel connection ring positioning grooves intersect, and the positioning plates are connected with pressing devices. The pressing device comprises a basic fixing plate, a pressing rod, a handle and a connecting rod, the handle is rotationally connected with the basic fixing plate through the connecting rod, the handle is rotationally connected with the pressing rod, and the pressing rod is rotationally connected with the basic fixing plate. According to the positioning tool, the line bank and the parallel connecting ring can be positioned, then the line bank and the parallel connecting ring are fixed through the pressing device, and then welding is conducted, compared with an original welding mode, the production efficiency is higher, the welding position precision of the line bank is high, and the line bank and the parallel connecting ring cannot generate relative displacement in the welding process.

Description

Technical Field

[0001] The invention relates to the technical field of double-fed wind power generators, in particular to a positioning tool for parallel-link welding terminal blocks of generators. Background Art

[0002] The wind turbines produced by a certain company need to add welding wire strips to the stator parallel ring, and the terminal strips need to be aligned with the terminal box holes. The position accuracy requirements are high. If the position cannot be aligned, rework is required. The original welding method is to pre-arrange the parallel ring in the stator housing, and then pre-install the terminal strip on the parallel ring to align the terminal strip with the terminal box hole, draw a line for the position of the terminal strip on the parallel ring, take out the parallel ring from the stator housing, and weld the terminal strip at the marked position on the parallel ring. This scheme has two defects: First, the parallel ring and terminal strip need to be pre-installed in the stator housing before welding, which increases the process and reduces the production efficiency. It becomes a short board of the process when the product is batched, affecting delivery; second, the line width of the drawing is too wide, resulting in a certain error in the installation of the terminal strip. The angle or installation distance that does not meet the requirements will cause the terminal strip to be unable to align with the terminal box hole; third, during welding, the welding tension causes the terminal strip and the parallel ring to have a relative displacement during the welding process, resulting in the final terminal strip not being welded at the marked position. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a positioning tool for generator parallel-ring welding terminal blocks in view of the deficiencies of the above-mentioned prior art. The positioning tool for generator parallel-ring welding terminal blocks can position the terminal blocks and the parallel rings, and then fix the terminal blocks and the parallel rings through a clamping device, and then weld them. Compared with the original welding method, the production efficiency is higher, the welding position accuracy of the terminal blocks is high, and the terminal blocks and the parallel rings will not undergo relative displacement during the welding process.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0005] A positioning tool for parallel-link welding terminal blocks of generators, comprising a positioning device and a pressing device;

[0006] The positioning device includes a plurality of positioning plates, adjacent positioning plates are fixedly connected by arc plates, the positioning plates are provided with a wiring row card slot for placing the wiring row and a parallel ring positioning slot for placing the parallel ring, the wiring row card slot and the parallel ring positioning slot intersect, the depth of the wiring row card slot is greater than the depth of the parallel ring positioning slot, and the depth difference between the two is less than the thickness of the wiring row, and the positioning plate is connected with a clamping device;

[0007] The clamping device includes a base fixing plate, a clamping rod, a handle and a connecting rod. The base fixing plate is connected to the positioning plate, one end of the handle is rotatably connected to the base fixing plate through the connecting rod, one end of the handle is rotatably connected to one end of the clamping rod, and one end of the clamping rod is rotatably connected to the base fixing plate.

[0008] As a further improved technical solution of the present invention, the positioning plate is further provided with a removal groove, and the removal groove intersects with the wiring row card slot and the parallel ring positioning groove.

[0009] As a further improved technical solution of the present invention, there are two removal grooves, which are respectively located on both sides of the wiring row slot.

[0010] As a further improved technical solution of the present invention, two clamping devices are connected to the positioning plate, and the two clamping devices are respectively located on both sides of the wiring row slot.

[0011] As a further improved technical solution of the present invention, a plurality of fixing holes are provided on the positioning plate, and the fixing holes on the positioning plate are fixedly connected to the base fixing plate of the clamping device by bolts.

[0012] As a further improved technical solution of the present invention, one end of the handle is tightly rotatably connected to one end of the connecting rod, the other end of the connecting rod is tightly rotatably connected to the base fixing plate, one end of the handle is tightly rotatably connected to one end of the clamping rod, and one end of the clamping rod is tightly rotatably connected to the base fixing plate.

[0013] As a further improved technical solution of the present invention, the other end of the clamping rod is connected to a clamping head.

[0014] As a further improved technical solution of the present invention, the clamping head is fixedly connected to the mounting hole at the end of the clamping rod through a nut.

[0015] The beneficial effects of the present invention are:

[0016] The positioning tool of the present invention can position the terminal block and the parallel ring through the terminal block slot and the parallel ring positioning slot on the positioning plate, and then fix the terminal block and the parallel ring through a clamping device, and then weld them. Compared with the original pre-installation, marking and then welding, the production efficiency is higher and the welding position accuracy of the terminal block is high. During the welding process, the parallel ring is clamped by the clamping device, so that the terminal block and the parallel ring will not undergo relative displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 A state diagram is used for the present invention.

[0019] Figure 3 for Figure 1 Middle AA section view.

[0020] Figure 4 It is a schematic diagram of the structure of the clamping device.

[0021] Figure 5 A top view of the clamping device. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are further described below according to the accompanying drawings:

[0023] A positioning tool for generator parallel-ring welding terminal blocks, comprising a positioning device (for fixing the relative position of the terminal block 8 and the relative position between the terminal block 8 and the parallel ring 9) and a clamping device 7 (for clamping the positioned terminal block 8 and the parallel ring 9 to avoid relative displacement caused by welding).

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the positioning device includes two positioning plates 2, and the number of positioning plates 2 can be increased accordingly according to different product requirements. Adjacent positioning plates 2 are fixedly connected by arc plates 1. The positioning plates 2 are provided with square wiring row slots 3 for placing wiring rows 8 and annular parallel ring positioning slots 4 for placing parallel rings. The wiring row slots 3 and the parallel ring positioning slots 4 intersect, and the depth of the wiring row slots 3 is greater than the depth of the parallel ring positioning slots 4, and the depth difference h between the two is less than the thickness of the wiring row 8 by about 0.5 mm (the thickness of the wiring row 8 is h+0.5). Two clamping devices 7 are connected to each positioning plate 2. Since the depth difference between the wiring row slots 3 and the parallel ring positioning slots 4 in the positioning device is less than the thickness of the wiring row 8, when the wiring row 8 is placed in the positioning device, the wiring row 8 is higher than the surface of the parallel ring positioning slots 4. Therefore, when the clamping device 7 presses the parallel ring 9 on the positioning device, the parallel ring 9 also presses the wiring row 8 synchronously, thereby fixing the relative position of the wiring row 8 and the parallel ring 9.

[0025] like Figure 4 and Figure 5 As shown, the clamping device 7 includes a base fixing plate 12, a clamping rod 11, a handle 10 and a connecting rod 14. The bottom of the base fixing plate 12 is connected to the positioning plate 2, one end of the handle 10 is rotatably connected to the base fixing plate 12 through the connecting rod 14, one end of the handle 10 is rotatably connected to one end of the clamping rod 11, and one end of the clamping rod 11 is rotatably connected to the base fixing plate 12.

[0026] In this embodiment, a removal groove 5 is further provided on the positioning plate 2 , and the removal groove 5 intersects with both the wiring row card groove 3 and the parallel ring positioning groove 4 .

[0027] In this embodiment, there are two extraction grooves 5 , which are respectively located on two sides of the wiring row slot 3 .

[0028] In this embodiment, two clamping devices 7 are connected to the positioning plate 2 , and the two clamping devices 7 are respectively located on both sides of the wiring row slot 3 .

[0029] In this embodiment, a plurality of fixing holes 6 are formed on the positioning plate 2 , and the fixing holes 6 on the positioning plate 2 are fixedly connected to the bottom of the base fixing plate 12 of the clamping device 7 by bolts.

[0030] In this embodiment, Figure 4 As shown, one end of the handle 10 is tightly rotatably connected to one end of the connecting rod 14, the other end of the connecting rod 14 is tightly rotatably connected to the base fixing plate 12, one end of the handle 10 is tightly rotatably connected to one end of the clamping rod 11, and one end of the clamping rod 11 is tightly rotatably connected to the base fixing plate 12. A rubber grip 10 is provided on the handle 10 to avoid personal injury.

[0031] In this embodiment, the other end of the pressing rod 11 is connected to a pressing head 13 .

[0032] In this embodiment, the clamping head 13 is fixedly connected to the mounting hole at the end of the clamping rod 11 through a nut. The clamping head is used to clamp the parallel link 9 so that the parallel link 9 clamps the wiring bar 8.

[0033] like Figure 2 As shown, the arc plate 1 and the parallel link 9 of this embodiment are concentric circles. Before use, the arc plate curvature, size and positioning plate size need to be pre-designed according to the relative position of the parallel link 9 and the terminal block 8 in the product, and then the positioning tool is processed and manufactured. The positioning tool is made of steel. When the positioning tool is used, the terminal block 8 is first placed in the terminal block slot 3, and then the parallel link 9 is placed in the parallel link 9 slot. Figure 2 Place the soldering lug at the contact position between the parallel ring 9 and the terminal block 8, and press down the handle 10 (the initial position of the handle 10 and the clamping rod 11 is as shown Figure 4 The handle 10 drives the clamping rod 11 to move downward through the connecting rod 14, and the clamping head at the end of the clamping rod 11 clamps the connecting ring 9, thereby fixing the relative position of the connecting ring 9 and the terminal block 8. After the whole device is clamped, the welding work of the connecting ring 9 and the terminal block 8 is carried out, which greatly improves the production efficiency and ensures the product quality. After the welding is completed, the connecting ring 9 and the terminal block 8 can be removed from the positioning plate 2 by removing the position of the groove 5.

[0034] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A positioning tool for parallel welding of terminal blocks of generators, characterized in that: It includes a positioning device and a pressing device; The positioning device includes a plurality of positioning plates, adjacent positioning plates are fixedly connected by arc plates, the positioning plates are provided with a wiring row card slot for placing the wiring row and a parallel ring positioning slot for placing the parallel ring, the wiring row card slot and the parallel ring positioning slot intersect, the depth of the wiring row card slot is greater than the depth of the parallel ring positioning slot, and the depth difference between the two is less than the thickness of the wiring row, and the positioning plate is connected with a clamping device; The clamping device includes a base fixing plate, a clamping rod, a handle and a connecting rod. The base fixing plate is connected to the positioning plate, one end of the handle is rotatably connected to the base fixing plate through the connecting rod, one end of the handle is rotatably connected to one end of the clamping rod, and one end of the clamping rod is rotatably connected to the base fixing plate.

2. The positioning tool for parallel welding terminal blocks of generators according to claim 1 is characterized in that: The positioning plate is also provided with a take-out groove, which intersects with the wiring row card slot and the parallel ring positioning groove.

3. The positioning tool for parallel welding terminal blocks of generators according to claim 2 is characterized in that: There are two extraction grooves, which are respectively located on both sides of the wiring row slot.

4. The positioning tool for parallel welding terminal blocks of generators according to claim 1 is characterized in that: The positioning plate is connected to two clamping devices, which are respectively located on both sides of the wiring row slot.

5. The positioning tool for parallel welding terminal blocks of generators according to claim 4 is characterized in that: The positioning plate is provided with a plurality of fixing holes, and the fixing holes on the positioning plate are fixedly connected to the base fixing plate of the clamping device by bolts.

6. The positioning tool for parallel welding terminal blocks of generators according to claim 5, characterized in that: One end of the handle is tightly rotatably connected to one end of the connecting rod, the other end of the connecting rod is tightly rotatably connected to the base fixing plate, one end of the handle is tightly rotatably connected to one end of the clamping rod, and one end of the clamping rod is tightly rotatably connected to the base fixing plate.

7. The positioning tool for parallel welding terminal blocks of generators according to claim 6 is characterized in that: The other end of the pressing rod is connected with a pressing head.

8. The positioning tool for parallel welding terminal blocks of generators according to claim 7 is characterized in that: The clamping head is fixedly connected to the mounting hole at the end of the clamping rod through a nut.

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