Milling keyway processing fixture for output shaft production

Abstract

This utility model relates to a keyway milling fixture for output shaft production, comprising a worktable and a positioning assembly mounted on the worktable. The positioning assembly includes a pressure plate, mounting blocks, and an adapting plate. Two mounting blocks are symmetrically mounted on the worktable surface. The pressure plate is mounted above the worktable, and its two ends are respectively fixed to the two mounting blocks by bolts. An annular groove is formed on the upper outer wall of each mounting block, and the adapting plate is embedded inside the annular groove. A threaded tube is fixedly mounted on the surface of the adapting plate. A threaded groove is formed on the bottom surface of the annular groove, and threaded holes are formed on both outer walls of the pressure plate. A spring chamber is provided between the two mounting blocks. A connecting rod can be used to assist in leveling the output shaft. The top block, clamping block, and adapting plate are all movable, allowing for the fixing of output shafts of various sizes and models, thus improving the adaptability of the fixture.

Description

Technical Field

[0001] This utility model relates to the field of output shaft manufacturing technology, and in particular to a milling keyway machining fixture for output shaft manufacturing. Background Technology

[0002] After the output shaft is cast, a keyway needs to be milled. For high-torque applications (such as heavy-duty reducers), a single keyway may not meet the strength requirements. By distributing multiple keyways (which must adhere to the principle of the same generatrix), the torque transmission capability can be improved and the stress concentration of a single keyway can be reduced.

[0003] The premise of opening multiple keyways is that the keyways must meet the principle of the same generatrix. Therefore, the machine tool fixture used to fix the output shaft must be able to ensure that the output shaft is placed horizontally. However, the existing machine tools do not have a horizontal detection function. Therefore, the operator needs to use a level to measure the horizontality of the output shaft. However, manual detection will always have errors, which reduces the yield of the output shaft. Utility Model Content

[0004] The purpose of this application is to provide a milling fixture for keyway production of output shafts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A keyway milling fixture for output shaft production includes a worktable and a positioning assembly mounted on the worktable. The positioning assembly includes a pressure plate, mounting blocks, and an adapting plate. Two mounting blocks are symmetrically mounted on the worktable surface. The pressure plate is mounted above the worktable, and its two ends are fixed to the two mounting blocks respectively by bolts. An annular groove is formed on the upper outer wall of each mounting block, and the adapting plate is embedded in the annular groove. A threaded tube is fixedly mounted on the surface of the adapting plate. A threaded groove is formed on the bottom surface of the annular groove, and threaded holes are formed on both outer walls of the pressure plate. A spring chamber is provided between the two mounting blocks and is fixedly mounted on the worktable surface. A top block is embedded in the top of the spring chamber and is fixedly connected to the spring in the spring chamber.

[0007] Preferably, slide rods are fixedly installed on both sides of the worktable, and sliders are movably installed on both sides of the worktable. Two sliders are respectively fitted onto the slide rods on both sides of the worktable. A mounting plate is fixedly installed above each slider, and two clamping blocks are movably installed on one side of the mounting plate. Fixing blocks are fixedly installed on the outer walls of both sides of the two mounting plates.

[0008] Preferably, a limiting tube is fixedly installed at the end of the pressure plate, and a connecting rod passes through the limiting tube. Both ends of the connecting rod pass through a fixing block, and one end of the connecting rod is threaded and fixed to the fixing block by a nut. Two clamping blocks are movably installed on the side of the mounting plate facing the worktable, and a spring is fixedly installed between one side of the clamping block and the side of the mounting plate.

[0009] The beneficial effects of this utility model are: by setting a positioning component, a connecting rod can be used to assist in leveling the output shaft; the top block, clamping block and adapting plate are all movable, which can be used to fix output shafts of various sizes and models, thereby improving the adaptability of the fixture. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the connection structure between the pressure plate and the mounting block in this utility model;

[0012] Figure 3 In this utility model Figure 3 A magnified schematic diagram of the structure of region A;

[0013] Figure 4 This is a schematic diagram showing the working state of the positioning component fixing the output shaft in this utility model.

[0014] In the diagram: 1. Workbench; 2. Mounting block; 3. Pressure plate; 4. Limiting tube; 5. Connecting rod; 6. Slider; 7. Mounting plate; 8. Fixing block; 9. Spring chamber; 10. Top block; 11. Clamping block; 12. Slide rod; 13. Adaptive plate; 14. Annular groove. Detailed Implementation

[0015] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0016] like Figure 1-4The illustrated fixture for milling keyways in output shaft production includes a worktable 1 and a positioning assembly mounted on the worktable 1. The positioning assembly includes a pressure plate 3, mounting blocks 2, and an adapting plate 13. Two mounting blocks 2 are symmetrically mounted on the worktable 1. The pressure plate 3 is mounted above the worktable 1, and both ends of the pressure plate 3 are fixed to the two mounting blocks 2 by bolts. An annular groove 14 is formed on the upper outer wall of the mounting blocks 2. The adapting plate 13 is embedded in the annular groove 14, and a threaded tube is fixedly mounted on the surface of the adapting plate 13. A threaded groove is formed on the bottom surface of the annular groove 14, and threaded holes are formed on both sides of the outer wall of the pressure plate 3. A spring chamber 9 is provided between the two mounting blocks 2. The spring chamber 9 is fixedly mounted on the worktable 1, and a top block 10 is embedded in the top of the spring chamber 9. The top block 10 is fixedly connected to the spring of the spring chamber 9.

[0017] Both sides of the workbench 1 are fixedly equipped with slide rods 12, and both sides of the workbench 1 are movably equipped with sliders 6. Two sliders 6 are respectively fitted onto the slide rods 12 on both sides of the workbench 1. A mounting plate 7 is fixedly installed above each of the two sliders 6. Two clamping blocks 11 are movably installed on one side of the mounting plate 7. Fixing blocks 8 are fixedly installed on the outer walls of both sides of the two mounting plates 7.

[0018] A limiting tube 4 is fixedly installed at the end of the pressure plate 3. A connecting rod 5 passes through the inside of the limiting tube 4. Both ends of the connecting rod 5 pass through the fixing block 8. One end of the connecting rod 5 is threaded and fixed to the fixing block 8 with a nut. Two clamping blocks 11 are movably installed on the side of the mounting plate 7 facing the workbench 1. A spring is fixedly installed between one side of the clamping block 11 and the side of the mounting plate 7.

[0019] Example: Place the output shaft requiring a keyway on the top block 10, then place the pressure plate 3. The pressure plate 3 presses down on the output shaft, causing the top block 10 to sink inside the spring chamber 9. Drive the bolt into the threaded hole at the end of the pressure plate 3. After one end of the bolt enters the threaded tube of the adapting plate 13, it stops rotating. Then, the operator moves the sliders 6 on both sides of the worktable 1. The sliders 6 slide on the slide rod 12, causing the mounting plate 7 to fit against the end of the output shaft. The end of the output shaft pushes the two clamping blocks 11 apart, and the spring causes the two clamping blocks 11 to clamp the end of the output shaft. Then, the operator passes the connecting rod 5 through the fixing block 8 on one side. The threaded end of the connecting rod 5 passes through the limiting tube 4 and then through another fixing block 8. The connecting rod 5 is then fixed with a nut. The connecting rod 5 can drive the pressure plate 3 to adjust its position. If the output shaft is not placed horizontally on the top block 10, the connecting rod 5 adjusts the position of the bolt through the limiting tube 4. The bolt drives the adaptation plate 13, which moves inside the annular groove 14 to accommodate the movement of the bolt. After the connecting rod 5 drives the pressure plate 3 to adjust the position of the output shaft to be horizontal, the bolt can be rotated to drive the bottom of the bolt into the threaded hole of the mounting block 2, thereby fixing the pressure plate 3 and completing the fixing of the output shaft.

Claims

1. A milling fixture for keyway machining in output shaft production, comprising a worktable (1) and a positioning assembly mounted on the worktable (1), characterized in that: The positioning assembly includes a pressure plate (3), a mounting block (2), and an adaptation plate (13). Two mounting blocks (2) are symmetrically installed on the table surface of the workbench (1). The pressure plate (3) is installed above the workbench (1). The two ends of the pressure plate (3) are respectively fixed to the two mounting blocks (2) by bolts. An annular groove (14) is provided on the upper outer wall of the mounting block (2). The adaptation plate (13) is embedded in the annular groove (14). A threaded tube is fixedly installed on the plate surface of the adaptation plate (13). A threaded groove is provided on the bottom surface of the annular groove (14). Threaded holes are provided on both sides of the outer wall of the pressure plate (3).

2. The milling fixture for keyway machining in output shaft production according to claim 1, characterized in that: A spring compartment (9) is provided between the two mounting blocks (2). The spring compartment (9) is fixedly installed on the table surface of the workbench (1). A top block (10) is embedded in the top of the spring compartment (9). The top block (10) is fixedly connected to the spring of the spring compartment (9).

3. The milling fixture for keyway machining in output shaft production according to claim 1, characterized in that: Both sides of the workbench (1) are fixedly installed with slide rods (12), and both sides of the workbench (1) are movably installed with sliders (6). The two sliders (6) are respectively sleeved on the slide rods (12) on both sides of the workbench (1). The two sliders (6) are fixedly installed with mounting plates (7) above them. Two clamping blocks (11) are movably installed on one side of the mounting plate (7).

4. The milling fixture for keyway machining in output shaft production according to claim 3, characterized in that: Fixing blocks (8) are fixedly installed on both sides of the outer walls of the two mounting plates (7). A limiting tube (4) is fixedly installed at the end of the pressure plate (3). A connecting rod (5) is inserted inside the limiting tube (4). Both ends of the connecting rod (5) pass through the fixing block (8). One end of the connecting rod (5) is threaded. One end of the connecting rod (5) is fixed to the fixing block (8) by a nut.

5. The milling fixture for keyway machining in output shaft production according to claim 3, characterized in that: Two clamping blocks (11) are movably mounted on the side of the mounting plate (7) facing the workbench (1), and a spring is fixedly installed between one side of the clamping block (11) and the side of the mounting plate (7).

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