A centerless guideway machining device for slotting a high voltage motor end cover joint surface

Abstract

The utility model discloses a kind of for high-voltage motor end cover joint surface grooving centerless guideway processing device, belong to high-voltage motor end cover grooving technical field, including telescopic shaft, fastening bolt, grooving machine pulley, cutter and high-voltage motor end cover, high-voltage motor end cover outer circle is provided with grooving machine pulley, fastening bolt is provided with two, one fastening bolt is installed in grooving machine pulley one end, telescopic shaft is inserted in grooving machine pulley, one fastening bolt one end passes through grooving machine pulley, and is rested on telescopic shaft side wall, cutter one end is inserted in telescopic shaft, one fastening bolt and cutter are respectively placed in telescopic shaft both ends, cutter other end and high-voltage motor end cover are close, another fastening bolt one end passes through telescopic shaft, and is rested on cutter one end side wall. Solve the problem of high cost of grooving in the prior art due to low machining precision, dismounting process is complex. Improve processing efficiency and precision, reduce processing cost.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage motor end cover grooving technology, specifically to a centerless guide rail processing device for grooving the mating surface of high-voltage motor end cover. Background Technology

[0002] In the field of high-voltage motor end cap grooving, existing technologies mainly cover three categories: milling, stamping, and laser cutting. Milling relies on center positioning fixtures to fix the end cap for cutting, but it suffers from poor versatility, groove spacing accuracy can only be controlled at around 0.1mm, and low efficiency. Stamping uses special molds to cut grooves, which is suitable for mass standardized production, but the mold cost is high, the accuracy is easily reduced by wear, and the defect rate is high. Laser cutting uses high-power laser beams to groove, which has high accuracy and can process complex grooves, but it faces problems such as high equipment cost, low processing efficiency, and poor material adaptability. On the other hand, high-voltage motor end caps are usually characterized by their ultra-large size (diameter can reach 3-5 meters) and ultra-heavy weight (several tons or even more than ten tons). When multiple high-voltage motors need to be grooved at the same time, the traditional processing mode requires first using large lifting equipment to disassemble the end caps from the motors and then transport them to a special processing workshop. This process is not only cumbersome and time-consuming to disassemble and assemble, but also consumes a lot of logistics resources. More importantly, frequent disassembly and assembly can easily damage the assembly datum accuracy of the end caps, creating hidden dangers for subsequent motor assembly.

[0003] Therefore, how to provide a centerless guide rail processing device for slotting the end cover mating surface of high voltage motors and solve the existing high voltage motor end cover slotting problem is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] Therefore, this utility model provides a centerless guide rail processing device for slotting the end cover joint surface of a high-voltage motor, in order to solve the problem of high slotting cost caused by complex processing, low precision, and complicated disassembly and assembly processes in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses a centerless guide rail processing device for slotting the mating surface of a high-voltage motor end cover, comprising: The high-voltage motor end cover has a slotting machine pulley on its outer circumference. Two fastening bolts are provided, one of which is installed at one end of the pulley of the grooving machine; A telescopic shaft is inserted into the pulley of the grooving machine, and one end of one of the fastening bolts passes through the pulley of the grooving machine and abuts against the side wall of the telescopic shaft; The cutting tool is inserted into the telescopic shaft at one end. One of the fastening bolts and the cutting tool are respectively placed at both ends of the telescopic shaft. The other end of the cutting tool is tightly attached to the high-voltage motor end cover. One end of the other fastening bolt passes through the telescopic shaft and abuts against the side wall of one end of the cutting tool.

[0006] In one possible implementation, the telescopic shaft includes: The spindle has a mounting tube connected to one end. A radial fixing tube is connected to the outer wall of the mounting tube. The mounting tube has a mounting hole that passes through the spindle and the mounting tube. The radial fixing tube has a threaded hole in which a fastening bolt is installed. The threaded hole is connected to the mounting hole. One end of the cutting tool is installed in the mounting hole. One end of the fastening bolt abuts against the spindle.

[0007] In one possible implementation, the grooving machine pulley includes: A roller is disposed on the outside of the high-voltage motor end cover. One end of the roller is connected to a positioning baffle, and the other side of the positioning baffle is connected to an extension tube. The roller is tangent to the outer circle of the high-voltage motor end cover. An axial fixing tube is disposed on the outer wall of the extension tube. The axial fixing tube is connected to the extension tube and the roller. One of the fastening bolts is installed in the axial fixing tube.

[0008] In one possible implementation, the cutting tool includes: The tool handle has a tool head installed at one end, and the other end of the tool handle is inserted into the telescopic shaft. One end of the tool head is in close contact with the mating surface of the high-voltage motor end cover, and one end of one of the fastening bolts abuts against the side wall of the tool handle.

[0009] In one possible implementation, the spindle, mounting tube, and radial fixing tube are an integral structure.

[0010] In one possible implementation, the positioning baffle, the extension tube, and the axial fixing tube are an integral structure.

[0011] This invention provides a centerless grooving machine with a reasonable structural design, high grooving accuracy, wide workpiece adaptability, and convenient and efficient operation. After removing the protective structure of the area to be processed from the high-voltage motor end cap, exposing the processing surface, in-situ grooving can be directly performed. This effectively solves the problems of cumbersome disassembly and transportation, low processing efficiency, and easy loss of precision caused by the excessive size and weight of the end cap in existing technologies. It also meets the stringent safety requirements of the explosion-proof industry and the high-efficiency grooving production needs in the high-voltage motor field, providing an innovative solution for parallel grooving and precise in-situ processing of multiple high-voltage motors. It improves processing efficiency and accuracy, shortens the parallel operation cycle, adapts to a wider range of working environments, and reduces processing costs. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0013] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0014] Figure 1 A perspective view of a centerless guide rail processing device for slotting the joint surface of a high-voltage motor end cover, provided by this utility model; Figure 2 Provided by this utility model Figure 1 Enlarged view of a portion at point A; Figure 3 A perspective view of the telescopic shaft provided for this utility model; Figure 4 A perspective view of the grooving machine pulley provided by this utility model; Figure 5 A perspective view of the cutting tool provided for this utility model; In the diagram: 1. Telescopic shaft; 11. Main shaft; 12. Mounting tube; 13. Radial fixing tube; 2. Fastening bolt; 3. Grooving machine pulley; 31. Positioning baffle; 32. Roller; 33. Extension tube; 34. Axial fixing tube; 4. Cutting tool; 41. Tool holder; 42. Tool head. Detailed Implementation

[0015] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Please refer to Figures 1-5 The present invention discloses a centerless guide rail processing device for slotting the mating surface of a high-voltage motor end cover, as shown below. Figures 1-2 The device includes a telescopic shaft 1, fastening bolts 2, a grooving machine pulley, a cutting tool 4, and a high-voltage motor end cover 5. A grooving machine pulley 3 is provided on the outer circle of the high-voltage motor end cover 5. There are two fastening bolts 2. One fastening bolt 2 is installed at one end of the grooving machine pulley 3. The telescopic shaft 1 is inserted into the grooving machine pulley 3. One end of one fastening bolt 2 passes through the grooving machine pulley 3 and abuts against the side wall of the telescopic shaft 1. One end of the cutting tool 4 is inserted into the telescopic shaft 1. One fastening bolt 2 and the cutting tool 4 are respectively placed at both ends of the telescopic shaft 1. The other end of the cutting tool 4 is in close contact with the high-voltage motor end cover 5. One end of the other fastening bolt 2 passes through the telescopic shaft 1 and abuts against the side wall of one end of the cutting tool 4. The telescopic shaft 1 is used to install the grooving machine pulley 3 and the cutter 4. The grooving machine pulley 3 can be moved radially on the telescopic shaft 1 to adjust its position, thereby matching the high-voltage motor end cap 5 of various thicknesses. The cutter 4 can be moved up and down in the telescopic shaft 1 to adjust its position and confirm the grooving position. Then, the grooving machine pulley 3 and the cutter 4 are fixed by the fastening bolt 2. After confirming the position, the fastening bolt 2 is tightened to rigidly lock the cutter 4 and the grooving machine pulley 3.

[0017] In a specific embodiment, such as Figure 3 The telescopic shaft 1 includes a main shaft 11, a mounting tube 12, and a radial fixing tube 13. One end of the main shaft 11 is connected to the mounting tube 12, and the outer wall of the mounting tube 12 is connected to the radial fixing tube 13. The mounting tube 12 has a mounting hole that passes through both the main shaft 11 and the mounting tube 12. The radial fixing tube 13 has a threaded hole in which a fastening bolt 2 is installed. The threaded hole communicates with the mounting hole. One end of the cutting tool 4 is installed in the mounting hole, and one end of the fastening bolt 2 rests against the main shaft 11. The purpose of the mounting tube 12 is to install the cutting tool 4, and the radial fixing tube 13 is used to install the fastening bolt 2 to fix the cutting tool 4, thus rigidly fixing the cutting tool 4 to the telescopic shaft 1.

[0018] In a specific embodiment, such as Figure 4The slotting pulley 3 includes a positioning baffle 31, a roller 32, an extension tube 33, and an axial fixing tube 34. The roller 32 is located on the outside of the high-voltage motor end cover 5. One end of the roller 32 is connected to the positioning baffle 31, and the other side of the positioning baffle 31 is connected to the extension tube 33. The roller 32 is tangent to the outer circle of the high-voltage motor end cover 5. The axial fixing tube 34 is located on the outer wall of the extension tube 33. The axial fixing tube 34 is connected to the extension tube 33 and the roller 32. One of the fastening bolts 2 is installed in the axial fixing tube 34. The roller 32 is made of high-hardness, wear-resistant material and is tangentially fitted to the outer circle of the high-voltage motor end cover 5. The roller 32 and the positioning baffle 31 are inserted into the telescopic shaft 1, allowing the roller 32 to move axially on the telescopic shaft 1. The positioning baffle 31 and the extension tube 33 are inserted into the telescopic shaft 1 and can move radially. This radial movement adapts to end covers of different thicknesses, allowing the positioning baffle 31 to cooperate with the cutter 4 to clamp the outer circle of the high-voltage motor end cover 5 for slotting, and is then fixed by the fastening bolts 2. After being fixed, the positioning baffle 31 abuts against the outer end face of the high-voltage motor end cover 5, serving as an axial positioning reference.

[0019] In a specific embodiment, such as Figure 5 The cutting tool 4 includes a tool holder 41 and a cutting head 42. The cutting head 42 is mounted on one end of the tool holder 41, and the other end of the tool holder 41 is inserted into the telescopic shaft 1. One end of the cutting head 42 is in close contact with the mating surface of the high-voltage motor end cover 5, and one end of a fastening bolt 2 abuts against the side wall of the tool holder 41. The cutting head 42 is made of cemented carbide, which has both high hardness and wear resistance, ensuring that the grooved surface of the high-voltage motor end cover 5 is smooth and burr-free. The length of the tool holder 41 can be adjusted arbitrarily at the mounting tube 12, and then rigidly fixed by the fastening bolt 2 installed on the radial fixing tube 13 to prevent radial offset from affecting the grooved position accuracy during processing, thus meeting the stringent requirements of the high-voltage motor end cover 5 for the grooved position.

[0020] In a specific embodiment, such as Figure 3 The main shaft 11, mounting tube 12, and radial fixing tube 13 are integrated into one structure. This integrated structure ensures the overall structural rigidity of the device, making it more stable during slotting.

[0021] In a specific embodiment, such as Figure 4 The positioning baffle 31, the extension tube 33, and the axial fixing tube 34 are integrated into one structure. This integrated structure ensures the overall structural rigidity of the device, making it more stable during slotting.

[0022] In use, the tool 42 is first installed on the tool holder 41, then the tool holder 41 is passed through the mounting tube 12, and the fastening bolt 2 is passed through the radial fixing tube 13. The tool holder is then fixed to the telescopic shaft 1 by the fastening bolt 2. The main shaft 11 is then passed through the roller 32, the positioning baffle 31, and the extension tube 33. The fastening bolt 2 is then passed through the axial fixing tube 34 to fix the main shaft 11. The roller 32 is then tangentially fitted to the high-voltage motor end cover 5. After confirming the fit, the positions of the positioning baffle 31 and the tool head 42 are adjusted by the fastening bolt 2. After the radial and axial positions are confirmed, the fastening bolt 2 is tightened to fix the tool 4 and the positioning baffle 31 to form a rigid lock, so that the entire device is fixed on the outer circle of the high-voltage motor end cover 5. Then, a circumferential force is manually applied to drive the roller 32 to rotate, thereby driving the tool 4 assembly to make a synchronous circumferential motion. The fastening bolt 2 can rigidly fix the tool 4 to prevent radial offset from affecting the grooving position accuracy during processing, thus meeting the stringent requirements of the high-voltage motor end cover for the grooving position. The cutter 4 can move precisely along the radial direction of the roller 32 to determine the radial position of the slot on the mating surface of the high-voltage motor end cover 5.

[0023] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A centerless guide rail processing device for slotting the mating surface of a high-voltage motor end cover, characterized in that, include: The high-voltage motor end cover (5) has a slotting machine pulley (3) on its outer circle. Two fastening bolts (2) are provided, one of which is installed at one end of the grooving machine pulley (3); The telescopic shaft (1) is inserted into the grooving machine pulley (3), and one end of one of the fastening bolts (2) passes through the grooving machine pulley (3) and abuts against the side wall of the telescopic shaft (1); The cutter (4) is inserted into the telescopic shaft (1) at one end. One of the fastening bolts (2) and the cutter (4) are respectively placed at both ends of the telescopic shaft (1). The other end of the cutter (4) is in close contact with the high-voltage motor end cover (5). One end of the other fastening bolt (2) passes through the telescopic shaft (1) and abuts against the side wall of one end of the cutter (4).

2. The centerless guide rail processing device for slotting the mating surface of a high-voltage motor end cover as described in claim 1, characterized in that, The telescopic shaft (1) includes: The spindle (11) is connected to a mounting tube (12) at one end. A radial fixing tube (13) is connected to the outer wall of the mounting tube (12). A mounting hole is opened in the mounting tube (12). The mounting hole passes through the spindle (11) and the mounting tube (12). A threaded hole is opened on the radial fixing tube (13). The fastening bolt (2) is installed in the threaded hole. The threaded hole is connected to the mounting hole. One end of the cutting tool (4) is installed in the mounting hole. One end of the fastening bolt (2) abuts against the spindle (11).

3. The centerless guide rail processing device for slotting the mating surface of a high-voltage motor end cover as described in claim 1, characterized in that, The grooving machine pulley (3) includes: A roller (32) is disposed on the outside of the high-voltage motor end cover (5). One end of the roller (32) is connected to a positioning baffle (31), and the other side of the positioning baffle (31) is connected to an extension tube (33). The roller (32) is tangent to the outer circle of the high-voltage motor end cover (5). An axial fixing tube (34) is provided on the outer wall of the extension tube (33). The axial fixing tube (34) is connected to the extension tube (33) and the roller (32). One of the fastening bolts (2) is installed in the axial fixing tube (34).

4. The centerless guide rail processing device for slotting the mating surface of a high-voltage motor end cover as described in claim 1, characterized in that, The cutting tool (4) includes: The handle (41) has a blade head (42) installed at one end. The other end of the handle (41) is inserted into the telescopic shaft (1). One end of the blade head (42) is in close contact with the mating surface of the high-voltage motor end cover (5). One end of one of the fastening bolts (2) abuts against the side wall of the handle (41).

5. The centerless guide rail processing device for slotting the mating surface of a high-voltage motor end cover as described in claim 2, characterized in that, The main shaft (11), mounting tube (12) and radial fixing tube (13) are an integral structure.

6. The centerless guide rail processing device for slotting the mating surface of a high-voltage motor end cover as described in claim 3, characterized in that, The positioning baffle (31), extension tube (33) and axial fixing tube (34) are an integral structure.

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