Tool for polishing inner surface of workpiece

Abstract

The utility model belongs to the technical field of workpiece surface treatment, and relates to a tool for polishing the inner surface of a workpiece. The tool comprises a rotating mechanism and a polishing mechanism, and a protective cover is arranged outside the polishing mechanism; the rotating mechanism comprises a rotating shaft, a transmission mechanism is arranged at the upper end of the rotating shaft, the rotating shaft rotates through the transmission mechanism, and an adjusting disc is arranged at the lower end of the rotating shaft. The grinding mechanism comprises a plurality of grinding blades arranged on the upper surface of the adjusting disc. According to the tool, the grinding efficiency can be greatly improved, and convenience is achieved; and moreover, a plurality of grinding blades are arranged, so that the grinding precision is remarkably improved, and the phenomenon of uneven surface caused by manual grinding is avoided.

Description

A tooling for grinding the inner surface of a workpiece Technical Field

[0001] This utility model belongs to the field of workpiece surface treatment technology, and relates to a tooling for grinding the inner surface of a workpiece. Background Technology

[0002] Cylindrical workpieces are extremely common in many industries, such as machinery manufacturing, including shafts and tubes. The quality of the workpiece's inner surface has a crucial impact on its performance and service life. Traditional grinding methods mostly rely on manual grinding, which is difficult to guarantee uniform and stable grinding precision and force. This can easily lead to uneven surfaces and workpiece failure, failing to meet requirements. Furthermore, prolonged manual grinding operations place high demands on workers' physical strength and skills, and pose certain safety risks.

[0003] Therefore, there is an urgent need to develop a safe, convenient, and high-precision grinding fixture for cylindrical workpieces to meet the dual requirements of modern industrial production for product quality and efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and to propose a tooling for grinding the inner surface of a workpiece.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tooling for grinding the inner surface of a workpiece includes a rotating mechanism and a grinding mechanism, wherein a protective cover is provided on the outside of the grinding mechanism;

[0007] The rotating mechanism includes a rotating shaft, a transmission mechanism is provided at the upper end of the rotating shaft, the rotating shaft is rotated through the transmission mechanism, and an adjusting disc is provided at one end of the rotating shaft;

[0008] The polishing mechanism includes several polishing blades disposed on the upper surface of the adjusting disc.

[0009] Furthermore, the upper surface of the adjusting disc is vertically provided with multiple rings of blade grooves, and the inner wall of each blade groove in the blade groove group is provided with a snap-fit ​​hole. The lower end of the grinding blade is provided with a snap-fit ​​claw, and the snap-fit ​​claw matches the snap-fit ​​hole.

[0010] Furthermore, the blade groove group includes four blade grooves, each of which is an arc-shaped groove.

[0011] Furthermore, the grinding blade is made of polyurethane.

[0012] Furthermore, abrasive particles are provided on the outer wall of the grinding blade.

[0013] Furthermore, the protective cover includes a protective cylinder, one end of which is provided with a protective disc, and the center of the protective disc is provided with a circular through hole.

[0014] Furthermore, a protruding protective outer ring is provided on the circular through hole, and a sealing ring is provided inside the protective outer ring.

[0015] Furthermore, the transmission mechanism includes a first transmission gear disposed on the upper end of the rotating shaft, a second transmission gear disposed on one side of the first transmission gear, the first transmission gear meshing with the second transmission gear, and the second transmission gear being driven by a motor.

[0016] Furthermore, the transmission mechanism includes a motor, the output shaft of which is connected to a rotating shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model provides a fixture for surface treatment of cylindrical workpieces. First, the fixture can significantly improve grinding efficiency and is convenient. Second, equipped with several grinding blades, the grinding accuracy is significantly improved, avoiding the uneven surface caused by manual grinding. Third, using this fixture can reduce labor intensity and labor costs, and is easy to operate, saving manpower. In addition, the device is highly versatile and can adapt to the grinding needs of cylindrical workpieces of different specifications and materials within a certain range. Attached Figure Description

[0019] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a schematic diagram of the overall tooling of this utility model;

[0022] Figure 2 is a schematic diagram of the rotating mechanism of this utility model;

[0023] Figure 3 is a schematic diagram of the protective cover of this utility model;

[0024] Figure 4 is a schematic diagram of the grinding mechanism of this utility model.

[0025] Wherein: 1 is the first transmission gear; 2 is the rotating shaft; 3 is the protective outer ring; 4 is the sealing ring; 5 is the adjusting disc; 6 is the protective cover; 7 is the grinding blade; 8 is the protective disc. Detailed Implementation

[0026] Exemplary embodiments will be described in detail below. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples consistent with some aspects of this invention as detailed in the appended claims.

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] Example

[0029] As shown in Figure 1, a tooling for grinding the inner surface of a workpiece includes a rotating mechanism and a grinding mechanism, wherein a protective cover 6 is provided on the outside of the grinding mechanism.

[0030] The rotating mechanism includes a rotating shaft 2, and a transmission mechanism is provided at the lower end of the rotating shaft 2. The rotating shaft 2 is rotated through the transmission mechanism, and an adjusting disc 5 is provided at one end of the rotating shaft 2.

[0031] The polishing mechanism includes several polishing blades 7 disposed on the upper surface of the adjusting disc 5.

[0032] In this embodiment, the rotating shaft 2 is rigidly connected to the adjusting disk 5, so that the adjusting disk 5 and the grinding blade 7 rotate together to achieve surface grinding of the workpiece.

[0033] Furthermore, as shown in Figure 4, the lower surface of the adjusting disc 5 is vertically provided with multiple rings of blade grooves, and the inner wall of each blade groove in the blade groove group is provided with a snap-fit ​​hole. The lower end of the grinding blade 7 is provided with a snap-fit ​​claw, and the snap-fit ​​claw matches the snap-fit ​​hole.

[0034] In this embodiment, the reason for setting multiple blades is to enable the tooling to meet the needs of cylindrical workpieces with different diameters. The locking claws and locking holes cooperate to make the locking claws and locking holes detachable, which is convenient for disassembly and replacement, so that the same adjustment disc can be reused to meet the needs of workpieces with different diameters. Similarly, the locking holes and locking claws can be replaced with any detachable connection mechanism that can meet the usage requirements.

[0035] Furthermore, the blade groove group includes four blade grooves, each of which is an arc-shaped groove.

[0036] In this embodiment: the arc-shaped groove can match the grinding blade 7, and the cross-section of the grinding blade 7 is also arc-shaped.

[0037] Furthermore, the grinding blade 7 is made of polyurethane.

[0038] In this embodiment, the grinding blades 7 are movable, fixed, and detachable on the adjusting disc 5, making them suitable for workpieces of different diameters. Furthermore, the grinding blades 7 are made of polyurethane, which is highly flexible and deformable. During grinding, the diameter of the space formed by several grinding blades 7 is adjustable, making them suitable for workpieces of different diameters. To meet different grinding requirements, a detachable design allows for the customization and installation of the required number of blades.

[0039] Furthermore, abrasive particles are provided on the outer wall of the grinding blade 7.

[0040] In this embodiment, the abrasive particles make grinding easier, resulting in a smoother inner wall of the workpiece.

[0041] Further, as shown in Figure 3, the protective cover 6 includes a protective cylinder, one end of which is provided with a protective disc 8, and the other end of the protective cylinder is sealed. A circular through hole is provided at the center of the protective disc 8. For ease of installation, the protective cover 6 is detachable, making it easy for the workpiece to be placed into the tooling of the present invention; and making the disassembly and installation of the grinding blade 7 more convenient.

[0042] In this embodiment, the protective cover 6 can provide some protection for the grinding blades and at the same time, it can suppress the dust generated during grinding. It is connected to the outer protective ring 3 and has no contact with the adjusting disc 5, so as to avoid frictional resistance and thus affect the grinding efficiency.

[0043] Furthermore, a protruding protective outer ring 3 is provided on the circular through hole, and a sealing ring 4 is provided inside the protective outer ring 3.

[0044] In this embodiment, the sealing ring 4 is provided to prevent dust from overflowing during the polishing process and affecting the environment.

[0045] Further, as shown in Figure 2, the transmission mechanism includes a first transmission gear 1 disposed on the upper end of the rotating shaft 2, and a second transmission gear disposed on one side of the first transmission gear 1. The first transmission gear 1 and the second transmission gear mesh with each other, and the second transmission gear is driven by a motor.

[0046] In this embodiment, the first transmission gear 1 and the rotating shaft 2 are rigidly connected. This method ensures the transmission efficiency of the first transmission gear 1. Its structure is simple and compact, and it can bear a large load. It is not easily deformed, and the transmission ratio is stable, which can ensure the accuracy and stability during grinding.

[0047] Furthermore, the transmission mechanism includes a motor, the output shaft of which is connected to the rotating shaft 2.

[0048] The method of using this utility model is as follows: First, remove the protective cover 6, put the cylindrical workpiece onto the grinding blade, so that the inner wall of the cylindrical workpiece contacts the grinding blade 7 (the cylindrical workpiece is relatively heavy, so even if it contacts the grinding blade 7 during the grinding process, it will not rotate with the grinding blade 7), put the protective cover 6 back on, start the motor, so that the motor drives the rotating shaft to rotate, and then the grinding blade 7 rotates, thereby grinding the inner wall of the workpiece. After the grinding is completed, turn off the motor, remove the protective cover 6, and take out the workpiece.

[0049] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0050] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A tooling for grinding the inner surface of a workpiece, characterized in that, It includes a rotating mechanism and a grinding mechanism. The grinding mechanism is provided with a protective cover (6). The rotating mechanism includes a rotating shaft (2). The lower end of the rotating shaft (2) is provided with a transmission mechanism. The rotating shaft (2) is rotated through the transmission mechanism. One end of the rotating shaft (2) is provided with an adjusting disc (5). The grinding mechanism includes several grinding blades (7) provided on the upper surface of the adjusting disc (5).

2. The tooling for grinding the inner surface of a workpiece according to claim 1, characterized in that, The upper surface of the adjusting disc (5) is vertically provided with multiple rings of blade grooves. Each blade groove in the blade groove group has a snap-fit ​​hole on its inner wall. The lower end of the grinding blade (7) is provided with a snap-fit ​​claw, which matches the snap-fit ​​hole.

3. The tooling for grinding the inner surface of a workpiece according to claim 2, characterized in that, The blade groove group includes four blade grooves, each of which is an arc-shaped groove.

4. The tooling for grinding the inner surface of a workpiece according to claim 1, characterized in that, The grinding blade (7) is made of polyurethane.

5. The tooling for grinding the inner surface of a workpiece according to claim 1, characterized in that, The outer wall of the grinding blade (7) is provided with abrasive particles.

6. The tooling for grinding the inner surface of a workpiece according to claim 1, characterized in that, The protective cover (6) includes a protective cylinder, one end of which is provided with a protective disc (8), and the center of the protective disc (8) is provided with a circular through hole.

7. The tooling for grinding the inner surface of a workpiece according to claim 6, characterized in that, A protruding protective outer ring (3) is provided on the circular through hole, and a sealing ring (4) is provided inside the protective outer ring (3).

8. The tooling for grinding the inner surface of a workpiece according to claim 1, characterized in that, The transmission mechanism includes a first transmission gear (1) disposed on the upper end of the rotating shaft (2), a second transmission gear disposed on one side of the first transmission gear (1), the first transmission gear (1) meshing with the second transmission gear, and the second transmission gear being driven by a motor.

9. The tooling for grinding the inner surface of a workpiece according to claim 1, characterized in that, The transmission mechanism includes a motor, and the output shaft of the motor is connected to the rotating shaft (2).

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