Bearing seat oil hole machining clamp

Abstract

The utility model relates to the technical field of fixture, especially a bearing seat oil hole machining clamp. The bearing seat oil hole machining clamp includes base, the base is discoid structure, and the central part of base is provided with the mounting groove, and the base on the outside of mounting groove is provided with annular placing cavity for placing bearing seat, and the mounting groove is provided with the clamping assembly for pressing and clamping bearing seat. The bearing seat oil hole machining clamp provided by the utility model places the bearing seat into the annular placing cavity, reversely rotates the threaded rod, makes the threaded rod rotate up along the threaded through hole of the support, drives the middle connecting column to slide up along the guide column under the elastic force of spring, at this moment, the middle connecting column drives two gears to rotate in opposite directions, therefore, two curved abutting plates also rotate in opposite directions, until the plate head of curved abutting plate is pressed and clamped on the bearing seat to realize the clamping of bearing seat, and the structure of the application is simple, the clamping assembly is convenient to operate, the bearing seat can be clamped quickly and will not fall off.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a fixture for machining oil holes in bearing seats. Background Technology

[0002] Machining oil holes in bearing housings is an important process in mechanical manufacturing. It involves the lubrication and cooling of the bearing housing and has a crucial impact on the operating accuracy and lifespan of the bearing. A fixture is required for machining oil holes in bearing housings. The main function of the fixture is to fix the bearing housing and ensure that the workpiece remains stable during the machining of oil holes, thereby improving machining accuracy and efficiency. Patent application number 201420579676.6 discloses a bearing housing oil hole machining fixture, including a base plate, a positioning seat, and a clamping mechanism. The base plate supports the positioning seat and the clamping mechanism through a support plate. The positioning seat consists of three mutually perpendicular positioning plates. The positioning base plate of the positioning seat is obliquely connected to the support plate, and the angle between the positioning seat and the support plate is not 90 degrees. The clamping mechanism includes a column, a rocker arm, and a cylinder. The column is located behind the positioning seat and is perpendicular to the positioning base plate. The upper part of the column is hinged to the rocker arm. The rocker arm extends from the front and rear ends of the column. When the piston rod of the cylinder is working, it abuts against the rear end of the rocker arm. The fixture has a high manufacturing cost and is not easy to adjust.

[0003] Therefore, it is necessary to provide a new bearing housing oil hole machining fixture to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a bearing housing oil hole machining fixture.

[0005] The bearing housing oil hole processing fixture provided by this utility model includes a base, the base having a disc-shaped structure, and a mounting groove is provided in the center of the base, and an annular placement cavity for placing the bearing housing is provided on the base around the mounting groove. The mounting groove is equipped with a clamping assembly for pressing and clamping the bearing seat. The clamping assembly includes a U-shaped frame, which is fixedly installed in the mounting groove. Two symmetrically distributed and rotatably connected gears are mounted on the U-shaped frame. A curved abutment plate is fixedly installed on the shaft of each gear. A central column that is elastically set and used to drive the curved abutment plate to press and clamp the bearing seat is mounted on the U-shaped frame.

[0006] Preferably, toothed plates are fixedly fitted to both sides of the central column, and the toothed plates are meshed with the corresponding gears.

[0007] Preferably, a bracket is fixedly installed on the U-shaped frame, and a threaded rod connected by a threaded through hole is inserted into the threaded through hole on the bracket. The bottom of the threaded rod is rotatably connected to the upper surface of the central column, and a threaded nut is fitted on the threaded rod located above the bracket.

[0008] Preferably, a spring is fixedly installed at the bottom of the central column, and the other end of the spring is fixedly connected to the inner bottom wall of the U-shaped frame.

[0009] Preferably, a guide post is fixedly installed on the inner bottom wall of the U-shaped frame, and the guide post is inserted into the sliding cavity opened in the central column and slidably connected to the sliding cavity, and the spring is sleeved on the guide post.

[0010] Preferably, the curved abutment plate has an arc-shaped pressing head fixedly fitted to its head.

[0011] Compared with related technologies, the bearing housing oil hole machining fixture provided by this utility model has the following advantages: This invention places the bearing housing into the annular placement cavity, and then rotates the threaded rod in the opposite direction to make it spiral upward along the threaded through hole of the bracket. As a result, the central connecting column is driven by the elastic force of the spring to slide upward along the guide column. At this time, the central connecting column drives the two gears to rotate in opposite directions, so the two curved abutment plates also rotate in opposite directions until the plate heads of the curved abutment plates press against the bearing housing to achieve clamping of the bearing housing. The present invention has a simple structure and the clamping components are easy to operate, making it easy and quick to clamp the bearing housing without it falling off. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a preferred embodiment of the bearing housing oil hole machining fixture provided by this utility model.

[0013] Figure 2 for Figure 1 One of the structural schematic diagrams of the clamping assembly shown.

[0014] Figure 3 for Figure 1 The second schematic diagram of the clamping assembly shown.

[0015] Figure 4 for Figure 2 A cross-sectional view of the clamping assembly shown.

[0016] The following are the labels in the diagram: 1. Base; 1a. Mounting slot; 1b. Annular placement cavity; 2. Clamping assembly; 21. U-shaped frame; 22. Gear; 23. Curved abutment plate; 231. Arc-shaped pressing head; 24. Central connecting column; 24a. Sliding cavity; 241. Toothed plate; 25. Bracket; 26. Threaded rod; 27. Nut; 28. Spring; 3. Guide column. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] Please see Figures 1 to 4 This utility model provides a bearing housing oil hole machining fixture, which includes a base 1 and a clamping assembly 2.

[0020] In the embodiments of this utility model, please refer to Figures 1 to 4 The base 1 has a disc-shaped structure, and a mounting groove 1a is provided in the center of the base 1. An annular placement cavity 1b for placing the bearing seat is provided on the base 1 around the mounting groove 1a. A clamping assembly 2 for pressing and clamping the bearing seat is installed in the mounting groove 1a. The clamping assembly 2 includes a U-shaped frame 21. The U-shaped frame 21 is fixedly installed in the mounting groove 1a. Two symmetrically distributed and rotatably connected gears 22 are installed on the U-shaped frame 21. A curved abutment plate 23 is fixedly installed on the shaft of each gear 22. A central connecting column 24 is installed on the U-shaped frame 21, which is elastically set and used to drive the curved abutment plate 23 to press the bearing seat. Specifically, toothed plates 241 are fixedly fitted on both sides of the central column 24, and the toothed plates 241 are meshed with the corresponding gears 22. A spring 28 is fixedly installed at the bottom of the central column 24, and the other end of the spring 28 is fixedly connected to the inner bottom wall of the U-shaped frame 21. A bracket 25 is fixedly installed on the U-shaped frame 21, and a threaded rod 26 connected by a threaded through hole is inserted into the threaded through hole on the bracket 25. The bottom of the threaded rod 26 is rotatably connected to the upper surface of the central column 24.

[0021] It should be noted that before clamping the bearing seat using the clamping assembly 2 on the base 1, the nut 27 on the threaded rod 26 is rotated upwards to its highest position along the threaded rod 26. Then, the threaded rod 26 is rotated to tighten downwards towards the bracket 25, thus compressing the spring 28 with the central connecting column 24. Simultaneously, as the central connecting column 24 slides down, it drives the two gears 22 to rotate in opposite directions, causing the two curved abutment plates 23 to also rotate in opposite directions. After placing the bearing seat into the annular placement cavity 1b, the screw is rotated in the opposite direction. The threaded rod 26 causes the threaded rod 26 to rotate upward along the threaded through hole of the bracket 25. As a result, the central connecting column 24 is driven by the elastic force of the spring 28 to slide upward along the guide column 3. At this time, the central connecting column 24 drives the two gears 22 to rotate in opposite directions. Therefore, the two curved abutment plates 23 also rotate in opposite directions until the plate heads of the curved abutment plates 23 press against the bearing seat to achieve clamping of the bearing seat. The structure of this application is simple and the clamping component 2 is easy to operate. It can easily and quickly clamp the bearing seat and prevent it from falling off.

[0022] Furthermore, a guide post 3 is fixedly installed on the inner bottom wall of the U-shaped frame 21, and the guide post 3 is inserted into the sliding cavity 24a opened in the central connecting post 24 and slidably connected to the sliding cavity 24a. The spring 28 is sleeved on the guide post 3. The guide post 3 can avoid the risk of bending when the spring 28 is compressed, and also improves the stability of the guide post 3 when sliding up and down.

[0023] Furthermore, the curved abutment plate 23 has an arc-shaped pressing head 231 fixedly fitted to its head, thereby enabling the curved abutment plate 23 to press more stably against the bearing seat placed in the annular placement cavity 1b.

[0024] The threaded rod 26 located above the bracket 25 is fitted with a threaded nut 27, which can prevent the threaded rod 26 from rotating excessively on the bracket 25.

[0025] The working principle of the bearing housing oil hole machining fixture provided by this utility model is as follows: Before clamping the bearing seat using the clamping assembly 2 on the base 1, the nut 27 on the threaded rod 26 is rotated upwards to the highest point along the threaded rod 26. Then, the threaded rod 26 is rotated to tighten downwards towards the bracket 25, thus the central column 24 presses against the spring 28. As the central column 24 slides down, it drives the two gears 22 to rotate in opposite directions, so the two curved abutment plates 23 also rotate in opposite directions. After placing the bearing seat into the annular placement cavity 1b, the threaded rod 26 is rotated in the opposite direction to make it rotate upwards along the threaded through hole in the bracket 25. Thus, the central column 24 is driven by the elastic force of the spring 28 to slide upwards along the guide post 3. At this time, the central column 24 drives the two gears 22 to rotate in opposite directions, so the two curved abutment plates 23 also rotate in opposite directions until the plate heads of the curved abutment plates 23 press against the bearing seat to achieve clamping of the bearing seat. The structure of this application is simple and the clamping assembly 2 is easy to operate, making it easy and quick to clamp the bearing seat without it falling off.

[0026] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixture for machining oil holes in bearing housings, characterized in that, Includes a base (1), which has a disc-shaped structure, and a mounting groove (1a) is provided in the center of the base (1), and an annular placement cavity (1b) for placing the bearing seat is provided on the base (1) around the mounting groove (1a). The mounting groove (1a) is equipped with a clamping assembly (2) for pressing and clamping the bearing seat. The clamping assembly (2) includes a U-shaped frame (21). The U-shaped frame (21) is fixedly installed in the mounting groove (1a). The U-shaped frame (21) is equipped with two symmetrically distributed and rotatably connected gears (22). A curved abutment plate (23) is fixedly installed on the shaft of each gear (22). A central connecting column (24) is installed on the U-shaped frame (21) and is elastically set for driving the curved abutment plate (23) to press and clamp the bearing seat.

2. The bearing housing oil hole machining fixture according to claim 1, characterized in that, Both sides of the central column (24) are fixedly fitted with toothed plates (241), and the toothed plates (241) are meshed with the corresponding gears (22).

3. The bearing housing oil hole machining fixture according to claim 2, characterized in that, A bracket (25) is fixedly installed on the U-shaped frame (21), and a threaded rod (26) connected by a threaded through hole is inserted in the threaded through hole on the bracket (25). The bottom of the threaded rod (26) is rotatably connected to the upper surface of the central column (24), and a nut (27) connected by a thread is fitted on the threaded rod (26) located above the bracket (25).

4. The bearing housing oil hole machining fixture according to claim 3, characterized in that, A spring (28) is fixedly installed at the bottom of the central column (24), and the other end of the spring (28) is fixedly connected to the inner bottom wall of the U-shaped frame (21).

5. The bearing housing oil hole machining fixture according to claim 4, characterized in that, The inner bottom wall of the U-shaped frame (21) is fixedly installed with a guide post (3), and the guide post (3) is inserted into the sliding cavity (24a) opened by the central column (24) and slidably connected to the sliding cavity (24a). The spring (28) is sleeved on the guide post (3).

6. The bearing housing oil hole machining fixture according to claim 1, characterized in that, The curved abutment plate (23) has an arc-shaped pressing head (231) fixedly fitted at its top.

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