High-precision grinding positioning device for silicon nitride bearing ring

Abstract

The utility model discloses a high-precision grinding positioning device of silicon nitride bearing ring, include: workstation, the bottom of workstation is provided with the mounting groove, the bottom fixedly connected with antiskid base of workstation, positioning assembly, the bottom of positioning assembly and the bottom fixedly connected of mounting groove inner wall, positioning assembly is used for high-precision positioning installation to silicon nitride bearing ring, the utility model relates to positioning device technical field. This high-precision grinding positioning device of silicon nitride bearing ring adopts four symmetrical placement frame, and the staff can place the silicon nitride bearing ring in advance outside the workbench, then only need to place the placement frame on the surface of the bearing plate through the positioning unit, and the placement frame can be selected to be matched with the silicon nitride bearing ring, so that a large amount of time is avoided to adjust in the later period, and when installing, only need to slide the placement frame on the surface of the positioning unit and insert the positioning rod, and the whole operation process is very simple.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, specifically a high-precision grinding positioning device for silicon nitride bearing rings. Background Technology

[0002] The silicon nitride bearing ring needs to be machined using a grinding wheel to achieve the required dimensional accuracy and surface roughness.

[0003] Patent CN216327099U discloses a high-precision bearing ring surface grinding device, comprising a main body, a support connected to the main body via a base plate, a sliding groove on the front side of the support, a slider connected inside the sliding groove, a moving rod connected to the slider via a locking screw, a clamping nut threaded onto the side surface of the locking screw, and a fixing block fixedly connected to the end of the moving rod away from the support, the fixing block having a rotating groove inside. This patent, through the interaction of the main body, support, tensioning bolt, internal threaded tube, and knob, allows for adjustment of the V-shaped opening of the support frame, enhancing the applicability of the grinding device and solving the problem of the narrow application range of existing high-precision bearing ring surface grinding devices.

[0004] As shown in the above technology, when silicon nitride bearing rings are processed, they need to be precisely positioned in the working position. The adjustment process is quite complicated. In actual production, the grinding time is relatively short, and a lot of time is spent on the positioning and adjustment of the individual silicon nitride bearing rings, which affects work efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-precision grinding and positioning device for silicon nitride bearing rings. This device solves the problems of the need for precise placement of the bearing rings in the working position, the complex adjustment process, the limited grinding time in actual production, and the significant time spent on positioning and adjusting the independent silicon nitride bearing rings, which affects work efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-precision grinding and positioning device for silicon nitride bearing rings, comprising:

[0007] The workbench has an installation groove at its bottom and an anti-slip base is fixedly connected to its bottom.

[0008] A positioning component, the bottom of which is fixedly connected to the bottom of the inner wall of the mounting groove, is used for high-precision positioning and installation of the silicon nitride bearing ring;

[0009] A grinding assembly, one side of which is fixedly connected to one side of the worktable, is used to perform grinding operations on silicon nitride bearing rings.

[0010] Preferably, the positioning component includes a drive motor fixedly connected to the bottom of the inner wall of the mounting slot. The top end of the output shaft of the drive motor is fixedly connected to a bearing plate via a coupling. A positioning unit is fixedly connected to the surface of the bearing plate. The positioning unit includes a placement slot plate. A positioning slot is formed at the center of the top of the placement slot plate. A dovetail block is movably connected to the inner wall of the placement slot plate. A mounting bracket is fixedly connected to the top of the dovetail block. A positioning rod is fixedly connected to one side of the mounting bracket.

[0011] Preferably, a placement frame is connected to one side of the surface of the positioning unit, and a release groove is provided at the bottom of the placement frame.

[0012] Preferably, the grinding assembly includes a boss fixedly connected to one side of the worktable, and a telescopic rod is fixedly connected to one side of the inner wall of the boss.

[0013] Preferably, a synchronization plate is fixedly connected to one end of the telescopic rod, and a lifting frame is fixedly connected to one side of the synchronization plate.

[0014] Preferably, a grinding motor is fixedly connected to one side of the inner wall of the lifting frame, and a grinding head is fixedly connected to one end of the output shaft of the grinding motor via a coupling.

[0015] This invention provides a high-precision grinding positioning device for silicon nitride bearing rings. Compared with the prior art, it has the following advantages:

[0016] 1. This high-precision grinding positioning device for silicon nitride bearing rings uses four symmetrically placed placement frames. Operators can pre-position the silicon nitride bearing rings outside the worktable, and then simply place the placement frames onto the surface of the support plate using the positioning unit. The placement frames can be selected to fit the silicon nitride bearing rings, avoiding a significant amount of time spent on adjustments later. Installation is simple: just slide the placement frame onto the positioning unit surface and insert the positioning rod. The overall operation is very convenient, further shortening installation time. This solves the problem of needing to precisely position the bearing rings in the working position, a complex adjustment process, and the significant time spent on positioning and adjusting individual silicon nitride bearing rings during actual production, which negatively impacts work efficiency.

[0017] 2. This high-precision grinding positioning device for silicon nitride bearing rings utilizes a drive motor and a support plate. After the processing of a single silicon nitride bearing ring, the support plate can be directly activated to move subsequent silicon nitride bearing rings to the vicinity of the grinding assembly. The drive motor is a stepper motor with extremely high operating precision. Utilizing the grinding assembly, the device can adjust its working height before and after processing. During processing, the height of the grinding head can be directly lowered to press the bearing ring firmly during grinding, avoiding dry grinding and improving the grinding pass rate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the positioning unit of this utility model;

[0021] Figure 4 This is a cross-sectional view of the grinding assembly of this utility model.

[0022] In the diagram: 1. Workbench; 2. Mounting slot; 3. Anti-slip base; 4. Positioning assembly; 41. Drive motor; 42. Bearing plate; 43. Positioning unit; 431. Placement slot plate; 432. Positioning slot; 433. Dovetail block; 434. Mounting bracket; 435. Positioning rod; 44. Placement frame; 45. Release slot; 5. Grinding assembly; 51. Boss; 52. Telescopic rod; 53. Synchronizing plate; 54. Lifting frame; 55. Grinding motor; 56. Grinding head. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides two technical solutions:

[0025] Example 1: A high-precision grinding and positioning device for silicon nitride bearing rings, comprising:

[0026] The workbench 1 has an installation groove 2 at its bottom and a sealing cover at its top. A feeding groove is provided on the left side of the workbench 1, and a protective cover is hinged to the surface of the feeding groove. The protective cover can protect the bearing ring during the processing. An anti-slip base 3 is fixedly connected to the bottom of the workbench 1.

[0027] Positioning component 4, the bottom of positioning component 4 is fixedly connected to the bottom of the inner wall of mounting groove 2, and positioning component 4 is used for high-precision positioning and installation of silicon nitride bearing ring;

[0028] Grinding assembly 5 is fixedly connected to one side of worktable 1. Grinding assembly 5 is used to grind silicon nitride bearing rings. It adopts four symmetrically placed placement frames 44. The operator can place the silicon nitride bearing rings outside the worktable 1 in advance, and then simply place the placement frames 44 on the surface of the support plate 42 through the positioning unit 43. The placement frames 44 can be selected to match the silicon nitride bearing rings, avoiding a lot of time spent on adjustment later. During installation, the placement frames 44 only need to be slid on the surface of the positioning unit 43 and then the positioning rod 435 is inserted. The overall operation process is very simple, further shortening the installation time. It solves the problem that it is necessary to precisely place it in the working position, and the adjustment process is relatively complicated. In actual production, the grinding time is less, and a lot of time is spent on the positioning and adjustment of the independent silicon nitride bearing rings, which affects the work efficiency.

[0029] Example 2 differs from Example 1 primarily in that: a high-precision grinding and positioning device for silicon nitride bearing rings includes a positioning component 4 comprising a drive motor 41 fixedly connected to the bottom of the inner wall of the mounting groove 2. The drive motor 41 is a stepper motor capable of high-precision forward and reverse rotation. A bearing plate 42 is fixedly connected to the top of the output shaft of the drive motor 41 via a coupling. A positioning unit 43 is fixedly connected to the surface of the bearing plate 42. The positioning unit 43 includes a placement groove plate 431, with a positioning groove 432 formed at the center of the top of the placement groove plate 431. Dovetail grooves are formed on both sides of the top of plate 31. A dovetail block 433 is movably connected to the inner wall of the groove plate 431. A mounting bracket 434 is fixedly connected to the top of the dovetail block 433. A positioning rod 435 is fixedly connected to one side of the mounting bracket 434. A placement frame 44 is connected to one side of the surface of the positioning unit 43. The placement frame 44 can be selected according to the actual silicon nitride bearing ring. Before processing, a placement frame 44 that matches the size and specifications of the silicon nitride bearing ring should be selected so that it can completely support the silicon nitride bearing ring to be processed. The bottom of the placement frame 44 is opened The grinding assembly 5 includes a release groove 45, ball bearings on the inner wall of the placement frame 44, and a boss 51 fixedly connected to one side of the worktable 1. A telescopic rod 52 is fixedly connected to one side of the inner wall of the boss 51. One end of the telescopic rod 52 is connected to an external hydraulic source and operated by electrical control. The electrical control equipment is located outside the device. A synchronization plate 53 is fixedly connected to one end of the telescopic rod 52. A lifting frame 54 is fixedly connected to one side of the synchronization plate 53. A grinding motor 55 is fixedly connected to one side of the inner wall of the lifting frame 54. One end of the output shaft of the grinding motor 55 is connected via a coupling. The device is fixedly connected to a grinding head 56. With the setup of the drive motor 41 and the support plate 42, the device can directly start the support plate 42 after the processing of an independent silicon nitride bearing ring, and move the subsequently installed silicon nitride bearing ring to the vicinity of the grinding assembly 5. The drive motor 41 is a stepper motor with extremely high running precision. With the setup of the grinding assembly 5, the device can adjust its working height before and after processing. During processing, the height of the grinding head 56 can be directly lowered to press the bearing ring tightly for grinding, avoid empty grinding, and improve the grinding qualification rate.

[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] During operation, a suitable placement frame 44 is selected for the current silicon nitride bearing ring. The silicon nitride bearing ring is placed inside the placement frame 44, the protective cover is opened, and the dovetail block 433 at the bottom of the placement frame 44 is pushed into the placement slot plate 431. After the mounting frame 434 moves to the appropriate position, the positioning rod 435 is inserted into the positioning slot 432, and the mounting frame 434 and the placement frame 44 are fixed as a whole. The drive motor 41 is turned on, and the placement frame 44 is rotated as a whole by the rotation of the bearing plate 42. When the silicon nitride bearing ring to be processed is rotated to the bottom of the grinding head 56, the telescopic rod 52 in the boss 51 is retracted, which directly drives the synchronous plate 53 and the lifting frame 54 to move down as a whole. The grinding motor 55 is turned on, and the silicon nitride bearing ring is ground by the high-speed rotation of the grinding head 56. During the grinding process, the operator accurately places the silicon nitride bearing ring into the placement frame 44. After the operation is completed, the telescopic rod 52 is raised, the drive motor 41 is turned on, and the above operation cycle is continued. When the device has finished working, the device is restored.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision grinding and positioning device for silicon nitride bearing rings, characterized in that, include: The workbench (1) has an installation groove (2) at the bottom and an anti-slip base (3) fixedly connected to the bottom of the workbench (1). Positioning component (4), the bottom of the positioning component (4) is fixedly connected to the bottom of the inner wall of the mounting groove (2), the positioning component (4) is used for high-precision positioning and installation of silicon nitride bearing ring, the positioning component (4) includes a drive motor (41) fixedly connected to the bottom of the inner wall of the mounting groove (2), the top end of the output shaft of the drive motor (41) is fixedly connected to a bearing plate (42) through a coupling, the surface of the bearing plate (42) is fixedly connected to a positioning unit (43), the positioning unit (43) includes a placement groove plate (431), the center of the top of the placement groove plate (431) is provided with a positioning groove (432), the inner wall of the placement groove plate (431) is movably connected to a dovetail block (433), the top of the dovetail block (433) is fixedly connected to a mounting frame (434), one side of the mounting frame (434) is fixedly connected to a positioning rod (435), one side of the surface of the positioning unit (43) is connected to a placement frame (44), the bottom of the placement frame (44) is provided with a release groove (45). Grinding assembly (5), one side of which is fixedly connected to one side of the worktable (1), the grinding assembly (5) is used to perform grinding operation on silicon nitride bearing ring.

2. The high-precision grinding and positioning device for silicon nitride bearing rings according to claim 1, characterized in that: The grinding assembly (5) includes a boss (51) fixedly connected to one side of the worktable (1), and a telescopic rod (52) is fixedly connected to one side of the inner wall of the boss (51).

3. The high-precision grinding and positioning device for silicon nitride bearing rings according to claim 2, characterized in that: One end of the telescopic rod (52) is fixedly connected to a synchronization plate (53), and one side of the synchronization plate (53) is fixedly connected to a lifting frame (54).

4. The high-precision grinding and positioning device for silicon nitride bearing rings according to claim 3, characterized in that: A grinding motor (55) is fixedly connected to one side of the inner wall of the lifting frame (54), and a grinding head (56) is fixedly connected to one end of the output shaft of the grinding motor (55) through a coupling.

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