Deep hole polishing device

Abstract

The utility model discloses a deep hole polishing device, which relates to the technical field of mechanical manufacturing and comprises a positioning block, a fixing cover arranged at the top of the positioning block, a fixing ring arranged inside the positioning block, a grinding wheel shaft arranged inside the fixing ring, a polishing head fixedly connected to the top of the grinding wheel shaft, and a connecting block fixedly connected to the side surface of the fixing ring. A movable block is rotatably connected to the inner wall of the positioning block, a cotter pin is movably inserted in the side faces of the connecting block and the movable block in a penetrating mode, a fixed insertion rod is movably inserted in one end of the cotter pin in a penetrating mode, a bearing is fixedly connected to the inner wall of a fixed ring, the fixed ring is rotatably connected with the grinding wheel shaft through the bearing, and a ball is rotatably connected to the side, away from the fixed ring, of the movable block; the top of the positioning block is in threaded connection with a fixing screw, and the problem that due to the fact that the stability and the accuracy of the far end of an overlong grinding wheel shaft are difficult to master, the inner diameter of a groove hole or the grinding angle is likely to deviate when a through hole corner angle or an annular groove corner angle and the like are ground and machined on a deep hole structure is solved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically a deep hole grinding device. Background Technology

[0002] In fields such as machinery manufacturing, aerospace, energy equipment and precision instruments, the processing and surface treatment of deep hole structures are key technical links. Deep holes usually refer to hole structures with a diameter-to-depth ratio greater than 5:1. The dimensional accuracy, surface roughness and consistency of their inner walls directly affect the sealing performance, wear resistance and fatigue life of components.

[0003] However, because it is difficult to control the stability and accuracy of the far end of the excessively long grinding wheel shaft, when grinding the corners of intersecting holes or annular grooves in deep hole structures, the inner diameter of the groove or the grinding angle is prone to deviation. Therefore, it is necessary to design a deep hole grinding device that can perform stable grinding. Utility Model Content

[0004] The purpose of this invention is to provide a deep hole grinding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deep hole grinding device, comprising a positioning block, a fixed cover on the top of the positioning block, a fixed ring inside the positioning block, a grinding wheel shaft inside the fixed ring, a grinding head fixedly connected to the top of the grinding wheel shaft, a connecting block fixedly connected to the side of the fixed ring, a moving block rotatably connected to the inner wall of the positioning block, a cotter pin movably inserted through the sides of the connecting block and the moving block, and a fixed insert rod movably inserted through one end of the cotter pin.

[0006] Preferably, a bearing is fixedly connected to the inner wall of the fixed ring, and the fixed ring is rotatably connected to the grinding wheel shaft through the bearing.

[0007] Preferably, the side of the movable block away from the fixed ring is rotatably connected to a ball bearing.

[0008] Preferably, the top of the positioning block is threaded with a fixing screw, and the positioning block is fixed to the fixing cover by the fixing screw.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention, by incorporating a positioning block, a connecting block, a moving block, and a cotter pin, transforms the uncontrollable state of the distal end into a controllable state, thereby improving grinding accuracy and processing efficiency. Furthermore, the design of the connecting block, the moving block, and the cotter pin allows for axial deflection angle adjustment of the grinding wheel shaft, enabling deburring while simultaneously addressing the grinding difficulties of intersecting holes and annular groove edges in deep holes by replacing grinding heads of different shapes. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the overall structure of this utility model after being disassembled.

[0013] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0014] Figure 4 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Grinding head; 2. Grinding wheel shaft; 3. Fixing ring; 4. Fixing cover; 5. Positioning block; 6. Connecting block; 7. Fixing screw; 8. Moving block; 9. Ball bearing; 10. Bearing; 11. Fixing rod; 12. Cotter pin. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-4 This utility model provides a technical solution: a deep hole grinding device, including a positioning block 5, a fixed cover 4 on the top of the positioning block 5, a fixed ring 3 inside the positioning block 5, a grinding wheel shaft 2 inside the fixed ring 3, a grinding head 1 fixedly connected to the top of the grinding wheel shaft 2, a connecting block 6 fixedly connected to the side of the fixed ring 3, a moving block 8 rotatably connected to the inner wall of the positioning block 5, and a cotter pin 12 movably inserted through the sides of the connecting block 6 and the moving block 8. This improves the stability of deep hole grinding and allows for adjustment of the angle of the grinding head 1, thereby meeting more grinding needs. A fixed insert rod 11 is movably inserted through one end of the cotter pin 12.

[0018] Furthermore, the inner wall of the fixing ring 3 is fixedly connected to the bearing 10, which not only serves as a limit but also improves the stability of the grinding wheel shaft 2 when it rotates. The fixing ring 3 is rotatably connected to the grinding wheel shaft 2 through the bearing 10.

[0019] Furthermore, the side of the movable block 8 away from the fixed ring 3 is rotatably connected to a ball bearing 9, which improves the smoothness of the movable block 8's rotation and thus enhances the polishing effect.

[0020] Furthermore, the top of the positioning block 5 is threaded with a fixing screw 7, and the positioning block 5 is threadedly fixed to the fixing cover 4 by the fixing screw 7, which facilitates the disassembly and assembly of the moving block 8.

[0021] Working principle: By connecting an external pneumatic or electric grinding tool to the grinding wheel shaft 2, the kinetic energy of the pneumatic or electric grinding tool is transferred to the grinding head 1, allowing grinding operations to be performed through the grinding head 1. As the grinding head 1 grinds deeper, the positioning block 5 provides support for the grinding head 1 during grinding, effectively extending the kinetic energy of the grinding tool into the deep hole, thus making the grinding more stable. Then, through the connecting block 6 and the moving block 8, the angle of the grinding head 1 can be adjusted. By rotating the connecting block 6 through the cotter pin 12, the grinding angle of the grinding head 1 is deflected. This not only allows for deburring operations inside deep holes, but also enables the grinding of intersecting hole edges, annular groove edges, etc., by replacing the grinding head 1 with different shapes through the fixed insert rod 11 and the cotter pin 12.

[0022] 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.

[0023] 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 deep hole grinding device, comprising a positioning block (5), characterized in that: The top of the positioning block (5) is provided with a fixed cover (4), the inside of the positioning block (5) is provided with a fixed ring (3), the inside of the fixed ring (3) is provided with a grinding wheel shaft (2), the top of the grinding wheel shaft (2) is fixedly connected with a grinding head (1), the side of the fixed ring (3) is fixedly connected with a connecting block (6), the inner wall of the positioning block (5) is rotatably connected with a moving block (8), the side of the connecting block (6) and the moving block (8) are movably inserted with a cotter pin (12), and one end of the cotter pin (12) is movably inserted with a fixed rod (11).

2. The deep hole grinding device according to claim 1, characterized in that: The inner wall of the fixed ring (3) is fixedly connected to a bearing (10), and the fixed ring (3) is rotatably connected to the grinding wheel shaft (2) through the bearing (10).

3. The deep hole grinding device according to claim 1, characterized in that: The movable block (8) is rotatably connected to a ball bearing (9) on the side away from the fixed ring (3).

4. The deep hole grinding device according to claim 1, characterized in that: The top of the positioning block (5) is threaded with a fixing screw (7), and the positioning block (5) is threadedly fixed to the fixing cover (4) by the fixing screw (7).

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