Scraping tumbling cutter

Abstract

The utility model discloses a scraping tumbling cutter, which belongs to the technical field of oil cylinder pipe inner wall processing cutters, and comprises a cutter box and a cutter body, the cutter box is fixed on a conductor, a bakelite strip is fixedly arranged on the side surface of the cutter body, a boring head cover is fixedly arranged at the front end of the cutter body, a front end screw is arranged at the front end of the boring head cover, and the cutter body is fixed on the conductor. The rear end of the cutter body is connected with a retainer through a screw, the screw is in threaded connection with a pressure nut, a plurality of balls are embedded in the side face of the retainer, and a cutter shaft is fixedly installed at the end, away from the boring head cover, of the retainer. According to the scraping and tumbling cutter, the scraping effect of the cutter body during scraping work can be guaranteed, the accuracy of the cutter body during scraping is guaranteed, the coaxiality tolerance of the cutter body during machining of the inner wall of an oil cylinder pipe is reduced, the quality of finished products is guaranteed, the whole scraping and tumbling cutter is simple in structure, the machining process is greatly simplified, and the operation cost and the operation time of the whole technology are saved.

Description

Technical Field

[0001] This utility model relates to the field of cutting tools for machining the inner wall of hydraulic cylinder tubes, and more specifically, to a scraping and burnishing tool. Background Technology

[0002] Machining the inner wall of the cylinder tube is a critical process in hydraulic cylinder manufacturing, directly affecting sealing performance, wear resistance, and service life. Traditional machining processes involve sequential roughing, finishing, and surface strengthening using cutting tools.

[0003] Currently, traditional machining processes are time-consuming, increasing processing costs. Furthermore, the surface of the inner wall of the cylinder tube after machining is relatively rough, with large coaxiality tolerances, affecting the quality of the finished product. In addition, traditional machining processes are relatively complex and costly.

[0004] Therefore, in view of this, we have studied and improved the existing structure to provide a scraping and burnishing tool, in order to achieve a more practical purpose. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a scraping and burnishing tool that can ensure the scraping effect of the tool body during scraping work, ensure the accuracy of the tool body during scraping, reduce the coaxiality tolerance when used for machining the inner wall of hydraulic cylinder tubes, ensure the quality of finished products, and the entire scraping and burnishing tool has a simple structure and the processing process is greatly simplified, saving the operating cost and time of the entire process.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A scraping and burnishing tool includes a tool holder and a tool body. The tool holder is fixed to the tool body, and a bakelite strip is fixedly installed on the side of the tool body. A boring head cover is fixedly installed at the front end of the tool body, and a front screw is installed at the front end of the boring head cover. A retainer is connected to the rear end of the tool body through a screw, and a pressure nut is threaded onto the screw. Several balls are embedded on the side of the retainer, and a tool shaft is fixedly installed at the end of the retainer away from the boring head cover.

[0010] Furthermore, the central axes of the boring head cover, the retainer, and the pressure nut are collinear.

[0011] Furthermore, the central axis of the front screw is located between the central axis of the boring head cover and the generatrix.

[0012] Furthermore, the blade box is fixed to the side of the blade body by bolts, and several blade boxes are radially distributed at equal angles.

[0013] Furthermore, the bakelite strip is located in the middle of the blade body.

[0014] Furthermore, the number of balls is set to nine, and the nine balls are combined into a ring and evenly distributed on the side of the cage.

[0015] Furthermore, the outer side of the tool shaft is provided with an external thread structure.

[0016] 3. Beneficial effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] ① In this solution, the scraping and burnishing tool mainly consists of two parts: a tool box, a tool body, and a retainer. The uniform radial distribution of the tool box ensures the scraping effect of the tool body during scraping operations. The ball bearings improve smoothness during rolling, and the bakelite strips provide a certain degree of shock absorption for the tool body, ensuring the accuracy of the tool body during scraping. This reduces the coaxiality tolerance when used for machining the inner wall of hydraulic cylinder tubes, ensuring the quality of the finished product. Furthermore, the entire scraping and burnishing tool has a simple structure, which greatly simplifies the processing process and reduces the overall operating cost and time.

[0019] ②This solution, based on the scraping and burnishing tool, can save 80-90% of machine time and reduce processing costs when scraping the inner wall of the cylinder tube. At the same time, the scraping and burnishing tool has a hole tolerance of IT8, which can reduce seal wear. While ensuring the smoothness of the inner wall of the cylinder tube after processing, it can reduce the wear cost of the scraping and burnishing tool.

[0020] ③ In this solution, the scraping and burnishing tool can process the blade material on the inner surface of the hole and is suitable for most materials. At the same time, the combination of scraping and burnishing has higher production efficiency and higher surface quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the scraping and burnishing tool in this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the blade body and blade box in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the cage and the tool shaft in this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Front screw; 2. Boring head cover; 3. Tool body; 4. Tool box; 5. Bakelite strip; 6. Pressure nut; 7. Cage; 8. Ball bearing; 9. Tool shaft. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] Please see Figure 1 - Figure 3 A scraping and burnishing tool includes a tool box 4 and a tool body 3. The tool box 4 is fixed on the tool body 3, and a bakelite strip 5 is fixedly installed on the side of the tool body 3. A boring head cover 2 is fixedly installed on the front end of the tool body 3, and a front screw 1 is installed on the front end of the boring head cover 2. A retainer 7 is connected to the rear end of the tool body 3 through a screw, and a pressure nut 6 is threaded on the screw. Several balls 8 are embedded on the side of the retainer 7, and a tool shaft 9 is fixedly installed at the end of the retainer 7 away from the boring head cover 2.

[0029] See Figure 1 Specifically, the central axes of the boring head cover 2, the retainer 7, and the pressure nut 6 are collinear.

[0030] To facilitate the synchronous rotation of the boring head cover 2, the retainer 7, and the pressure nut 6.

[0031] See Figure 1 , Figure 2 Specifically, the central axis of the front screw 1 is located between the central axis of the boring head cover 2 and the generatrix.

[0032] The front screw 1 and the boring head cover 2 can form a crank-like structure. The closer the central axis of the front screw 1 is to the generatrix of the boring head cover 2, the larger the wheelbase.

[0033] Specifically, the knife box 4 is fixed to the side of the knife body 3 by bolts, and several knife boxes 4 are radially distributed at equal angles.

[0034] During rotation, the force on each knife box 4 is made approximately equal, thus avoiding damage caused by uneven force on the knife box 4.

[0035] Specifically, the bakelite strip 5 is located in the middle of the blade body 3.

[0036] The bakelite strip 5 can protect the middle part of the blade body 3, and at the same time, it can play a certain role in shock absorption and protection when the blade body 3 rotates.

[0037] See Figure 1 , Figure 3 Specifically, the number of balls 8 is set to nine, and the nine balls 8 are combined into a ring and evenly distributed on the side of the cage 7.

[0038] When the cage 7 is engaged with the corresponding sleeve structure, there are balls 8 and the inner wall structure of the sleeve, which ensures the stability of the cage 7 during rotation.

[0039] Specifically, the outer side of the tool shaft 9 is provided with an external thread structure.

[0040] The external thread structure facilitates the screwing in of the tool shaft 9, thereby making it easier for motors and other equipment to control the synchronous rotation of the tool shaft 9.

[0041] Working principle:

[0042] The scraping and burnishing tool mainly consists of two parts: a tool box 4, a tool body 3, and a retainer 7. The uniform radial distribution of the tool box 4 ensures the scraping effect of the tool body 3 during scraping operations. The ball bearings 8 improve the smoothness during rolling, and the bakelite strips 5 provide a certain degree of shock absorption for the tool body 3, ensuring the accuracy of the tool body 3 during scraping. This reduces the coaxiality tolerance when used for machining the inner wall of hydraulic cylinder tubes, ensuring the quality of the finished product. Furthermore, the entire scraping and burnishing tool has a simple structure, which greatly simplifies the processing and reduces the overall operating cost and time.

[0043] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A scraping and burnishing tool, comprising a tool holder (4) and a tool body (3), characterized in that: The tool box (4) is fixed on the tool body (3), and a bakelite strip (5) is fixedly installed on the side of the tool body (3). A boring head cover (2) is fixedly installed on the front end of the tool body (3). A front end screw (1) is installed on the front end of the boring head cover (2). A retainer (7) is connected to the rear end of the tool body (3) through a screw, and a pressure nut (6) is threaded on the screw. Several balls (8) are embedded on the side of the retainer (7), and a tool shaft (9) is fixedly installed at the end of the retainer (7) away from the boring head cover (2).

2. The scraping and burnishing tool according to claim 1, characterized in that: The central axes of the boring head cover (2), the retainer (7), and the pressure nut (6) are collinear.

3. The scraping and burnishing tool according to claim 1, characterized in that: The central axis of the front screw (1) is located between the central axis of the boring head cover (2) and the generatrix.

4. A scraping and burnishing tool according to claim 1, characterized in that: The knife box (4) is fixed to the side of the knife body (3) by bolts, and several knife boxes (4) are radially distributed at equal angles.

5. A scraping and burnishing tool according to claim 1, characterized in that: The bakelite strip (5) is located in the middle of the blade body (3).

6. A scraping and burnishing tool according to claim 1, characterized in that: The number of the balls (8) is set to nine, and the nine balls (8) are combined into a ring and evenly distributed on the side of the cage (7).

7. A scraping and burnishing tool according to claim 1, characterized in that: The outer side of the tool shaft (9) is provided with an external thread structure.

Images