A centerless grinding positioning device for output shaft

Abstract

The utility model relates to output shaft processing technical field, and disclose a kind of output shaft centerless grinding positioning device, the output shaft centerless grinding positioning device, including workbench, the upper surface of workbench is fixedly connected with vertical board, the surface of vertical board is rotatably installed with connecting disc, the surface of connecting disc is fixedly installed with three-jaw chuck;The lower surface of workbench is fixedly connected with a group of fixed plate, a group of the fixed plate between rotatably installed with screw rod, the surface of screw rod is threadedly sleeved with screw sleeve, the upper end of screw sleeve extends to the upper of workbench and is fixedly connected with connecting plate, the surface of connecting plate rotatably installed with rotating rod, one end of rotating rod is fixedly connected with limit disc, the device can be double-end positioning to output shaft, avoid axial movement in the process of processing, can collect the chip in the processing process simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of output shaft processing technology, specifically to an output shaft centerless grinding positioning device. Background Technology

[0002] The output shaft is the shaft that transmits power. Output shafts are widely used in power devices, such as motors and electric motors. During the processing of the output shaft, a lathe is used to cut the outer circle and end face of the output shaft, followed by drilling, milling keyways, and other machining. Positioning devices are required during the drilling and keyway machining of the output shaft.

[0003] A search revealed an output shaft machining positioning device (publication number CN 218556302 U), belonging to the technical field of machining positioning devices. This device addresses the problem of poor versatility in existing output shaft machining positioning devices. It includes a positioning base, a fixed frame, an output shaft workpiece, an adjusting slide rail, a supporting sliding seat, and a chip collection box. The lower end of the fixed frame is fixedly connected to the left end of the positioning base, and the upper end of the fixed frame has a dovetail groove. The left side of the output shaft workpiece is fixedly connected to the upper end of the fixed frame. The adjusting slide rail is fixedly connected to the middle of the upper end of the positioning base. The supporting sliding seat is slidably connected to the adjusting slide rail. The lower end of the chip collection box is slidably connected to the adjusting slide rail, and the chip collection box is positioned below the output shaft workpiece. This invention increases the versatility of the output shaft machining positioning device.

[0004] However, the above-mentioned device still has some shortcomings in use. The positioning structure is simple, relying only on the support sliding seat to support the bottom of the output shaft. It lacks axial limiting components. During the grinding process, the output shaft is prone to axial movement due to high-speed rotation, which causes the coaxiality deviation of the processed output shaft to exceed the tolerance range. At the same time, the screw of the device is exposed, and the metal chips generated during the grinding process are prone to accumulate on the surface of the transmission components, causing the components to jam and wear, thus shortening the service life of the device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a centerless grinding positioning device for output shafts. It solves the problems of simple positioning structures that rely solely on a supporting sliding seat to support the bottom of the output shaft, lacking axial limiting components. During the grinding process, the output shaft is prone to axial movement due to high-speed rotation, resulting in the coaxiality deviation of the processed output shaft exceeding the tolerance range. At the same time, the screw of the device is exposed, and metal chips generated during the grinding process are prone to accumulate on the surface of the transmission components, causing component jamming, wear, and shortening the service life of the device.

[0006] This utility model provides the following technical solution: an output shaft centerless grinding positioning device, including a worktable, a vertical plate fixedly connected to the upper surface of the worktable, a connecting plate rotatably mounted on the surface of the vertical plate, and a three-jaw chuck fixedly mounted on the surface of the connecting plate.

[0007] A set of fixing plates is fixedly connected to the lower surface of the workbench. A screw is rotatably installed between the set of fixing plates. A threaded sleeve is threaded onto the surface of the screw. The upper end of the threaded sleeve extends to the top of the workbench and is fixedly connected to a connecting plate. A rotating rod is rotatably installed on the surface of the connecting plate. One end of the rotating rod is fixedly connected to a limit plate.

[0008] Preferred technical solution 1: A sliding rod is fixedly connected between a group of fixed plates, and a sliding sleeve is slidably sleeved on the surface of the sliding rod. The sliding sleeve is fixedly connected to the connecting plate. Two movable grooves are opened on the upper surface of the worktable, and the screw sleeve and the sliding sleeve can move in the corresponding movable grooves respectively.

[0009] This solution can restrict the movement of the connecting plate, making its movement more stable.

[0010] Preferred technical solution 2: A first motor is fixedly connected to the surface of one of the fixed plates, and the output end of the first motor passes through the fixed plate and is fixedly connected to the screw.

[0011] This design utilizes the rotation of the first motor to drive the connecting plate to move rapidly.

[0012] Preferred technical solution 3: A second motor is fixedly connected to the surface of the vertical plate, and the output end of the second motor passes through the connected vertical plate and is fixedly connected to the connecting plate.

[0013] Preferred technical solution four: A collection box is placed on the upper surface of the workbench, a filter frame is placed inside the collection box, coolant is added inside the collection box, and mounting brackets are fixedly connected to both sides of the filter frame, the mounting brackets matching the box wall of the collection box.

[0014] This solution facilitates the cooling and collection of debris generated during the grinding process.

[0015] Preferred technical solution five: both the screw and the slide are fitted with protective tubes, the protective tubes being corrugated flexible tubes, and the protective tubes do not affect the movement of the screw sleeve and the slide sleeve.

[0016] This solution can protect the screw and slide bar, preventing debris accumulation from causing problems.

[0017] Compared with the prior art, this utility model provides a centerless grinding positioning device for output shafts, which has the following advantages:

[0018] (1) The output shaft centerless grinding positioning device forms a double-end positioning structure by setting a three-jaw chuck and a limiting plate. The three-jaw chuck can firmly clamp one end of the output shaft, and the limiting plate can accurately fit the other end of the output shaft under the drive of the first motor drive screw and the screw sleeve to achieve axial limiting, effectively preventing the output shaft from moving axially during grinding.

[0019] (2) The output shaft centerless grinding positioning device collects and cools the chips through the collection box and filter frame. The filter frame can quickly separate the grinding chips and can be easily removed and cleaned through the mounting bracket to avoid chip accumulation affecting the processing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a bottom view of the bottom structure of this utility model;

[0022] Figure 3 This is a partial structural exploded view of the present invention;

[0023] Figure 4 This is a structurally exploded view of the collection box and filter frame of this utility model.

[0024] In the diagram: 1. Workbench; 2. Vertical plate; 3. Connecting plate; 4. Three-jaw chuck; 5. Fixing plate; 6. Screw; 7. Screw sleeve; 8. Connecting plate; 9. Rotating rod; 10. Limiting plate; 11. Sliding rod; 12. Sliding sleeve; 13. Movable groove; 14. First motor; 15. Second motor; 16. Collection box; 17. Filter frame; 18. Mounting bracket; 19. Protective tube. Detailed Implementation

[0025] Please see Figure 1-4 ,

[0026] Example 1: A centerless grinding positioning device for an output shaft includes a worktable 1, a vertical plate 2 fixedly connected to the upper surface of the worktable 1, a connecting plate 3 rotatably mounted on the surface of the vertical plate 2, and a three-jaw chuck 4 fixedly mounted on the surface of the connecting plate 3.

[0027] A set of fixing plates 5 are fixedly connected to the lower surface of the workbench 1. A screw 6 is rotatably installed between the set of fixing plates 5. A screw sleeve 7 is threaded onto the surface of the screw 6. The upper end of the screw sleeve 7 extends to the top of the workbench 1 and is fixedly connected to a connecting plate 8. A rotating rod 9 is rotatably installed on the surface of the connecting plate 8. One end of the rotating rod 9 is fixedly connected to a limit plate 10.

[0028] Example 2: The difference between this example and Example 1 is that a sliding rod 11 is fixedly connected between a group of fixed plates 5, a sliding sleeve 12 is slidably sleeved on the surface of the sliding rod 11, the sliding sleeve 12 is fixedly connected to the connecting plate 8, and two movable grooves 13 are opened on the upper surface of the workbench 1, and the screw sleeve 7 and the sliding sleeve 12 can move in the corresponding movable grooves 13 respectively.

[0029] Example 3: The difference between this example and Example 1 is that a first motor 14 is fixedly connected to the surface of one of the fixing plates 5, and the output end of the first motor 14 passes through the fixed plate 5 and is fixedly connected to the screw 6.

[0030] Example 4: The difference between this example and Example 1 is that a second motor 15 is fixedly connected to the surface of the vertical plate 2, and the output end of the second motor 15 passes through the connected vertical plate 2 and is fixedly connected to the connecting plate 3.

[0031] Example 5: The difference between this example and Example 1 is that a collection box 16 is placed on the upper surface of the workbench 1, a filter frame 17 is placed inside the collection box 16, coolant is added inside the collection box 16, and mounting brackets 18 are fixedly connected to both sides of the filter frame 17, with the mounting brackets 18 matching the box wall of the collection box 16.

[0032] Example 6: The difference between this example and Example 1 is that the screw 6 and the slide rod 11 are both covered with a protective tube 19. The protective tube 19 is a corrugated flexible tube and does not affect the movement of the screw sleeve 7 and the slide sleeve 12.

[0033] In summary, the three-jaw chuck 4 of the output shaft centerless grinding positioning device is existing technology and can be purchased and used directly from the market. Its control method and detailed connection means are known technologies in the field. Those skilled in the art can connect all electrical components and their compatible power supplies through wires, and should select a suitable controller according to the actual situation to meet the control requirements. Its detailed connection means and control scheme are known technologies in the field. The following mainly introduces the working principle and process, and will not explain the electrical control. At the same time, the screw 6 and the screw sleeve 7 meet the self-locking condition and the thread helix angle is less than the equivalent friction angle.

[0034] When using this output shaft centerless grinding positioning device, first place one end of the output shaft to be processed in the three-jaw chuck 4, and clamp and fix one end of the output shaft by the three-jaw chuck 4. Then start the first motor 14, which drives the screw 6 connected to its output end to rotate. The threaded sleeve 7 on the surface of the screw 6 moves along the axial direction of the screw 6 under the action of the thread, thereby driving the connecting plate 8 to move closer to the output shaft until the limiting plate 10 on the connecting plate 8 is tightly fitted with the other end of the output shaft, realizing the axial limitation of the output shaft. Then start the second motor 15 on the vertical plate 2. The second motor 15 drives the output shaft clamped by the connecting plate 3 and the three-jaw chuck 4 to rotate synchronously. This allows the output shaft to be centerlessly ground in conjunction with external grinding equipment. During the grinding process, the grinding debris generated falls into the filter frame 17 in the collection box 16. The debris is cooled by the coolant, and the filter frame 17 collects the debris for easy cleaning later.

Claims

1. A centerless grinding positioning device for an output shaft, comprising a worktable (1), characterized in that: A vertical plate (2) is fixedly connected to the upper surface of the workbench (1), a connecting plate (3) is rotatably mounted on the surface of the vertical plate (2), and a three-jaw chuck (4) is fixedly mounted on the surface of the connecting plate (3). A set of fixing plates (5) are fixedly connected to the lower surface of the workbench (1). A screw (6) is rotatably installed between the set of fixing plates (5). A screw sleeve (7) is threaded onto the surface of the screw (6). The upper end of the screw sleeve (7) extends to the top of the workbench (1) and is fixedly connected to a connecting plate (8). A rotating rod (9) is rotatably installed on the surface of the connecting plate (8). One end of the rotating rod (9) is fixedly connected to a limit plate (10).

2. The output shaft centerless grinding positioning device according to claim 1, characterized in that: A sliding rod (11) is fixedly connected between a group of fixed plates (5). A sliding sleeve (12) is slidably sleeved on the surface of the sliding rod (11). The sliding sleeve (12) is fixedly connected to the connecting plate (8). Two movable grooves (13) are opened on the upper surface of the workbench (1). The screw sleeve (7) and the sliding sleeve (12) can move in the corresponding movable grooves (13).

3. The output shaft centerless grinding positioning device according to claim 1, characterized in that: A first motor (14) is fixedly connected to the surface of one of the fixed plates (5), and the output end of the first motor (14) passes through the fixed plate (5) and is fixedly connected to the screw (6).

4. The output shaft centerless grinding positioning device according to claim 1, characterized in that: A second motor (15) is fixedly connected to the surface of the vertical plate (2). The output end of the second motor (15) passes through the vertical plate (2) and is fixedly connected to the connecting plate (3).

5. The output shaft centerless grinding positioning device according to claim 1, characterized in that: A collection box (16) is placed on the upper surface of the workbench (1). A filter frame (17) is placed inside the collection box (16). Coolant is added inside the collection box (16). Mounting brackets (18) are fixedly connected to both sides of the filter frame (17). The mounting brackets (18) match the walls of the collection box (16).

6. The output shaft centerless grinding positioning device according to claim 2, characterized in that: The screw (6) and the slide (11) are both fitted with protective tubes (19), which are corrugated hoses. The protective tubes (19) do not affect the movement of the screw sleeve (7) and the slide sleeve (12).

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