Polishing device for precision machine part machining

Abstract

The utility model belongs to the technical field of polishing equipment, and particularly relates to a polishing device for machining precision mechanical parts, which comprises a polishing machine and a three-jaw chuck. The rotating frame is located in the grinding machine and rotationally connected with the sliding frame, pressing rods are distributed on the inner side of the rotating frame in the circumferential direction, pressing blocks abutting against the surface of the shaft body are arranged at the bottoms of the pressing rods, the adjacent pressing blocks abut against the shaft body at the same time to achieve the clamping effect, and the rotating frame is rotationally connected with the sliding frame through a switching part on one side. The clamping mechanism is installed in different areas on the outer side of a shaft body, and the effect of preventing eccentric swing is achieved. And the blocking pad is located at the bottom of the pressing block, a positioning hole is formed in the blocking pad, and the blocking pad is used for providing a deformation space of the blocking pad, so that a local area wrapping effect is formed when the blocking pad abuts against the shaft body, and friction resistance is increased to prevent the shaft body from being crushed. According to the clamping mechanism, clamping can be carried out in different areas of the outer side of the shaft body, stability is kept during high-speed rotation, eccentric swing is prevented, the effect of stable polishing operation is achieved, damage to the shaft body and quality reduction are prevented, in addition, the hardness of the clamping mechanism is adjustable, crushing damage is prevented, and meanwhile clamping stability is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding equipment, and in particular relates to a grinding device for processing precision mechanical parts. Background Technology

[0002] Precision mechanical parts are high-precision, high-performance mechanical components characterized by high machining accuracy and excellent performance. In order to improve the surface finish and precision of the parts and ensure their smooth operation and reliability, they are often polished during the production process.

[0003] As a crucial component of precision parts, shafts often require clamping and fixing with a three-jaw chuck during grinding, allowing for high-speed rotation. During this process, the shaft's length and uneven weight distribution can lead to an imbalance in centrifugal force. This imbalance intensifies during high-speed rotation, resulting in noticeable eccentric swaying. Furthermore, if the shaft's diameter decreases or its shape changes after a period of operation, it can also affect the shaft's rotational stability, causing eccentric swaying.

[0004] To address the aforementioned problems, this application proposes a grinding device for machining precision mechanical parts. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for machining precision mechanical parts, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a grinding device for precision mechanical parts processing, comprising a grinding machine and a three-jaw chuck; a rotating frame, located inside the grinding machine and rotatably connected to a slide; pressure rods are distributed circumferentially on the inner side of the rotating frame, and pressure blocks are provided at the bottom of the pressure rods to abut against the surface of the shaft; adjacent pressure blocks simultaneously abut against the shaft to form a clamping effect; the rotating frame is rotatably connected to the slide through a connecting part on one side, used to install the clamping mechanism in different areas on the outside of the shaft to achieve the effect of preventing eccentric swaying; a blocking pad, located at the bottom of the pressure blocks, has a positioning hole inside to provide deformation space for the blocking pad, so that the blocking pad forms a local area wrapping effect when abutting against the shaft, used to increase frictional resistance and prevent damage to the shaft.

[0008] Furthermore, the rotating frame has an inner ring frame on the side away from the slide, and the outer side of the inner ring frame has a wheel with the same outer diameter as the rotating frame, which facilitates the operation of the inner ring frame.

[0009] Furthermore, the inner ring frame is provided with a push block on the side adjacent to the carriage, and the outer side of the push block and the inner side of the rotating frame are provided with interconnected spiral units, and the other side of the push block is provided with a guide slope.

[0010] Furthermore, the upper end of the pressure rod is provided with a top block, and the end adjacent to the guide slope is an inclined structure.

[0011] Furthermore, the guide slope is used to drive the top block to press down the pressure rod and the pressure block at its bottom.

[0012] Furthermore, the inner ring frame is rotatably fitted with ball bearings to reduce frictional resistance during rotation.

[0013] Furthermore, the pressure block is provided with support plates on both sides, which are used to increase the structural stability of the blocking pad through the positioning hole of the inner plug, and are suitable for clamping and fixing shafts made of hard materials.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes the rotational assembly of the rotating frame and the slide, combined with the clamping effect of adjacent pressure blocks, to clamp and fix the shaft at any point on the outside of the shaft during grinding operations, except for the clamping of the three-jaw chuck, thus maintaining it in a stable rotational state and preventing eccentric swaying, thereby ensuring the grinding quality of the shaft surface. In addition, this mechanism can also be applied to some longer shafts, making the clamping position unrestricted and convenient for grinding operations.

[0016] This invention, through the docking of the plug and the positioning hole, allows for better clamping of the shaft by selecting the appropriate material for the shaft. During installation, the structure of the plug is more stable, resulting in a better clamping effect. When grinding a shaft made of softer material, the plug can be removed, and the deformation characteristics of the plug can be used to form a localized wrapping clamping effect, which can effectively prevent damage to the shaft surface and adapt to different usage needs.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the combined structure of the rotating frame and the slide of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the rotating frame and the carriage of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the inner ring frame and the rotating frame of this utility model and a partially enlarged structural diagram.

[0023] Figure 5 This is an exploded structural diagram of the support plate and pressure block of this utility model;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Grinding machine; 2. Three-jaw chuck; 3. Carriage; 4. Rotary frame; 5. Inner ring frame; 6. Rotary wheel; 7. Pressure block; 8. Pressure rod; 9. Top block; 10. Push block; 11. Guide slope; 12. Positioning hole; 13. Blocking pad; 14. Adapter; 15. Ball bearing; 16. Spiral unit; 17. Support plate; 18. Plug. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Please see Figure 1-5 As shown, this utility model is a grinding device for processing precision mechanical parts, including a grinding machine 1 and a three-jaw chuck 2;

[0029] The rotating frame 4 is located inside the grinder 1 and is rotatably connected to the slide 3. The inner circumferential distribution of the rotating frame 4 is a pressure rod 8. The upper end of the pressure rod 8 is provided with a top block 9, which is located inside the rotating frame 4. The bottom of the pressure rod 8 is provided with a pressure block 7 that abuts against the surface of the shaft. When adjacent pressure blocks 7 abut against the shaft at the same time, they form a clamping effect. The rotating frame 4 is rotatably connected to the slide 3 through a transition part 14 on one side, which is used to install the clamping mechanism in different areas on the outside of the shaft to achieve the effect of preventing eccentric swaying.

[0030] The blocking pad 13 is located at the bottom of the pressure block 7 and has a positioning hole 12 inside to provide deformation space for the blocking pad 13. This allows the blocking pad 13 to form a local area wrapping effect when it abuts against the shaft, thereby increasing frictional resistance and preventing damage to the shaft.

[0031] This embodiment provides a grinding clamping device that can prevent the shaft from eccentrically swaying. By using the movable slide 3 and the pressure block 7 inside the rotating frame 4, the shaft can be clamped evenly in a circumferential direction at any end area, keeping it in a stable state for high-speed rotation. This facilitates grinding operations while improving the surface finish. In addition, the blocking pad 13 at the bottom of the pressure block 7, combined with the positioning hole 12, can deform during clamping, thereby forming a local area of ​​wrapping around the shaft. This increases frictional resistance to prevent loosening and also prevents damage to the shaft.

[0032] The rotating frame 4 has an inner ring frame 5 on the side away from the slide 3. The outer side of the inner ring frame 5 has a wheel 6 with the same outer diameter as the rotating frame 4, which facilitates the operation of the inner ring frame 5. The inner ring frame 5 has a push block 10 on the side adjacent to the slide 3. The outer side of the push block 10 and the inner side of the rotating frame 4 are both equipped with interconnected spiral units 16. The other side of the push block 10 has a guide slope 11. In use, the wheel 6 is rotated first. Under the action of the spiral unit 16, the push block 10 is driven to move into the interior of the rotating frame 4. Then, the inclined structure of the guide slope 11 is used to press down the top block 9 and finally drive the blocking pad 13 to abut against the shaft to form a clamp.

[0033] One end of the adjacent guide slope 11 is an inclined structure.

[0034] The guide slope 11 can be pressed down by connecting with the cleaning structure of the top block 9.

[0035] Among them, the inner ring frame 5 is rotatably mounted with ball bearings 15 to reduce frictional resistance during rotation, and the spiral unit 10 has self-locking characteristics.

[0036] Among them, the pressure block 7 is provided with support plates 17 on both sides, which are used to increase the structural stability of the blocking pad 13 by connecting the inner plug 18 with the positioning hole 12, and are suitable for clamping and fixing shafts made of hard materials.

[0037] It is understood that this utility model can clamp the shaft in different areas on the outside, so as to maintain its stability during high-speed rotation and prevent eccentric swaying, thereby achieving the effect of stable grinding operation, preventing damage to the shaft and quality degradation. In addition, the hardness of the clamping mechanism is adjustable, which prevents crushing while ensuring clamping stability.

[0038] A specific application of the operation process of this embodiment is as follows: In use, the shaft is first inserted into the interior of the slide 3, and then the rotating wheel 6 is rotated to move the guide slope 11 inward and make the guide slope 11 abut against the top block 9. The pressure rod 8 is pressed down by the inclined structure, and finally the blocking pad 13 abuts against the shaft to form a clamp. Before clamping, the plug 18 is assembled or disassembled according to the material of the shaft. When the plug 18 is inserted into the blocking pad 13, it increases the structural stability of the blocking pad 13 to form a more stable clamping effect. When the plug 18 is removed, the deformation characteristics of the blocking pad 13 can form a covering clamping effect on a local area of ​​the shaft to increase frictional resistance and enhance stability, so as to prevent excessive pressure from damaging the surface of the shaft. Then, during the grinding operation, the pressure rod 8 drives the rotating frame 4 to rotate with the shaft, which is suitable for high-speed rotating grinding operations. In this way, the slide 3 can be installed in different areas on the outside of the shaft to prevent eccentric swaying caused by factors such as excessive shaft length and uneven force distribution, and ensure the quality of shaft grinding operation.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A grinding device for machining precision mechanical parts, comprising a grinding machine (1) and a three-jaw chuck (2), characterized in that: The rotating frame (4) is located inside the grinder (1) and is rotatably connected to the slide (3). The inner circumferential distribution of the rotating frame (4) has pressure rods (8). The bottom of the pressure rods (8) is provided with pressure blocks (7) that abut against the surface of the shaft. When adjacent pressure blocks (7) abut against the shaft at the same time, they form a clamping effect. The rotating frame (4) is rotatably connected to the slide (3) through a transition part (14) on one side. It is used to install the clamping mechanism in different areas outside the shaft to prevent eccentric swaying. The blocking pad (13) is located at the bottom of the pressure block (7) and has a positioning hole (12) inside. This provides the deformation space for the blocking pad (13), so that the blocking pad (13) forms a local area wrapping effect when it abuts against the shaft, thereby increasing frictional resistance and preventing damage to the shaft.

2. The grinding device for machining precision mechanical parts according to claim 1, characterized in that: The rotating frame (4) has an inner ring frame (5) on the side away from the slide (3). The outer side of the inner ring frame (5) has a wheel (6) with the same outer diameter as the rotating frame (4), which facilitates the operation of the inner ring frame (5).

3. The grinding device for machining precision mechanical parts according to claim 2, characterized in that: The inner ring frame (5) is provided with a push block (10) on the side adjacent to the slide (3). The outer side of the push block (10) and the inner side of the rotating frame (4) are provided with interconnected spiral units (16). The other side of the push block (10) is provided with a guide slope (11).

4. The grinding device for machining precision mechanical parts according to claim 1, characterized in that: The upper end of the pressure bar (8) is provided with a top block (9), and the end adjacent to the guide slope (11) is an inclined structure.

5. The grinding device for machining precision mechanical parts according to claim 3, characterized in that: The guide slope (11) is used to drive the top block (9) to press down the pressure rod (8) and the pressure block (7) at its bottom.

6. The grinding device for machining precision mechanical parts according to claim 2, characterized in that: The inner ring frame (5) is rotatably mounted with ball bearings (15) to reduce frictional resistance during rotation.

7. The grinding device for machining precision mechanical parts according to claim 1, characterized in that: The pressure block (7) has support plates (17) on both sides, which are used to increase the structural stability of the blocking pad (13) by connecting the inner plug (18) with the positioning hole (12), and are suitable for clamping and fixing shafts made of hard materials.

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