A milling and turning fixture for thin-walled cylindrical parts

Abstract

This utility model proposes a milling and turning fixture for thin-walled cylindrical parts, used for machining thin-walled cylinders (4), comprising: a first push rod (1), a second push rod (2), and an inner liner (3), wherein: the inner liner (3) is placed inside the thin-walled cylinder (4), and the first push rod (1) and the second push rod (2) are respectively pushed against the two ends of the thin-walled cylinder (4), so that the two ends of the two push rods are engaged in the inner liner (3). Under the action of force, the two push rods will cause the inner liner (3) to expand, thereby playing a supporting role for the thin-walled cylinder (4), reducing the vibration generated by the thin-walled cylinder (4) during machining, and reducing the deformation generated during machining. This utility model relates to a milling and turning fixture for thin-walled cylindrical parts, which has a simple structure, is safe to use, and is easy to operate, improving the machining accuracy, machining efficiency, machining safety, and economy of the workpiece.

Description

Technical Field

[0001] This utility model is a milling and turning fixture for thin-walled cylinder parts, which is used to improve the machining accuracy, machining efficiency and safety of thin-walled cylinders (4). Background Technology

[0002] When processing thin-walled cylinder (4), due to the short clamping part and long suspended part of the thin-walled cylinder (4), the thin-walled cylinder (4) vibrates greatly during the processing, resulting in wavy tool marks on the thin-walled cylinder (4) and a high scrap rate. Traditional processing technology can only reduce the equipment speed, reduce the cutting depth and reduce the feed rate to ensure the roughness of the thin-walled cylinder (4), reduce the risk of tool breakage and improve processing safety, resulting in low processing efficiency.

[0003] In response to the problem of machining thin-walled cylinder (4), this utility model provides a milling and turning fixture for thin-walled cylinder parts, which can fix the thin-walled cylinder (4) internally and externally, and does not require secondary clamping or reserved process table, thereby improving machining efficiency, machining accuracy and machining safety, and reducing raw material consumption rate. Utility Model Content

[0004] The technical problem of this utility model is: Traditional processing techniques can only improve the roughness of thin-walled cylinders (4) and reduce the risk of tool breakage by reducing the rotation speed of the equipment, the depth of cut, and the feed rate, resulting in low processing efficiency.

[0005] The purpose of this utility model is: A milling and turning fixture for thin-walled cylindrical parts is provided. It has a simple structure and is safe to use. It can be used for milling and turning of thin-walled cylindrical parts (4). It changes the previous requirement to reduce the machine speed, reduce the depth of cut and feed rate to improve the workpiece processing quality and requires secondary clamping. With this fixture, one processing can be completed on the milling and turning machine, which improves the processing accuracy, processing efficiency and processing safety, and saves raw materials.

[0006] The technical solution of this utility model is: This utility model proposes a milling and turning fixture for thin-walled cylinder parts, used for machining thin-walled cylinder (4), including: a first push rod (1), a second push rod (2), and an inner liner (3), wherein: the inner liner (3) is placed inside the thin-walled cylinder (4), and the first push rod (1) and the second push rod (2) are respectively pushed against the two ends of the thin-walled cylinder (4), so that the two ends of the two push rods are inserted into the inner liner (3). Under the action of force, the two push rods will cause the inner liner (3) to expand, thereby playing a supporting role for the thin-walled cylinder (4), reducing the vibration of the thin-walled cylinder (4) during machining, and reducing the deformation generated during machining.

[0007] Preferably, the first push rod (1), the second push rod (2), and the inner lining (3) are all made of No. 45 steel and are heat-treated to increase toughness.

[0008] Preferably, the first push rod (1), the second push rod (2), and the inner liner (3) can be fixed by clamping force between them and the thin-walled cylinder (4).

[0009] Preferably, the milling fixture for thin-walled cylinder (4) can reduce the vibration generated by the thin-walled cylinder (4) during machining, improve the surface roughness of the workpiece, and eliminate the need to reduce the rotation speed of the equipment and reduce the depth of cut and feed rate, thereby improving the machining efficiency and product quality of thin-walled cylinder (4).

[0010] Preferably, the milling fixture for thin-walled cylinder parts can fix the thin-walled cylinder (4), reduce the vibration of the thin-walled cylinder (4) during processing, and thus increase the safety of processing.

[0011] Preferably, the milling fixture for thin-walled cylindrical parts does not require a pre-reserved process table.

[0012] The advantages and beneficial effects of this utility model are: a. It is easy to operate and plays an internal and external fixing role for the thin-walled cylinder (4), reducing the vibration during the processing of the thin-walled cylinder (4), improving the processing accuracy, processing efficiency and processing safety, and reducing processing deformation; b. The structure is simple. No threads or other connections are needed between the various parts of the fixture, and no tools are required for assembly. Only the clamping force between each part and the workpiece is needed to fix it. c. Traditional machining processes carry the risk of tool breakage during machining. Using this type of milling and turning fixture for thin-walled cylinder parts can provide necessary fixation for the thin-walled cylinder (4), reduce vibration during machining, and thus increase machining safety.

[0013] d. When using traditional processes to process thin-walled cylinders (4), a 50mm process table needs to be reserved, which wastes raw materials and reduces processing efficiency. Using this milling and turning fixture, there is no need to reserve a process table, thereby saving raw materials and reducing the processing steps to the process table. This indirectly improves the economy and efficiency of processing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model 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.

[0015] Figure 1 This is a schematic diagram of the assembly structure of the milling and turning fixture for thin-walled cylindrical parts according to this utility model; Figure 2 This is a schematic diagram of the structure of the first push rod (1) of this utility model; Figure 3 This is a schematic diagram of the structure of the second push rod (2) of this utility model; Figure 4-1 This is a schematic diagram of the structure of the inner lining (3) of this utility model; Figure 4-2 This is a schematic diagram of the structure of the inner lining (3) of this utility model from direction A; Figure 4-3 This is a schematic diagram of the structure of the inner lining (3) of this utility model from direction B; Figure 5-1 This is a schematic diagram of the structure of the thin-walled cylinder (4); Figure 5-2 A schematic diagram of the structure of a partially enlarged view of the body of the thin-walled cylinder (4); Figure 5-3 This is a schematic diagram of the structure of a thin-walled cylinder (4) in a partial view along direction A; Figure 5-4 This is a schematic diagram of the structure of the thin-walled cylinder (4) from direction B; Figure 5-5 This is a structural schematic diagram of a thin-walled cylinder (4)B, enlarged view.

[0016] The reference numerals in the attached figures are as follows: First push rod (1), second push rod (2), inner lining (3), thin-walled cylinder (4). Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] It should be noted that, where there is no conflict, the embodiments of this utility model and the features therein can be combined with each other, and the various embodiments can be referenced and cited in turn. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the assembly structure of the milling and turning fixture for thin-walled cylindrical parts according to this utility model; Figure 2 This is a schematic diagram of the structure of the first push rod (1) of this utility model; Figure 3 This is a schematic diagram of the structure of the second push rod (2) of this utility model; Figure 4-1 This is a schematic diagram of the structure of the inner lining (3) of this utility model; Figure 4-2 This is a schematic diagram of the structure of the inner lining (3) of this utility model from direction A; Figure 4-3This is a schematic diagram of the structure of the inner lining (3) of this utility model from direction B; Figure 5-1 This is a schematic diagram of the structure of the thin-walled cylinder (4); Figure 5-2 A schematic diagram of the structure of a partially enlarged view of the body of the thin-walled cylinder (4); Figure 5-3 This is a schematic diagram of the structure of a thin-walled cylinder (4) in a partial view along direction A; Figure 5-4 This is a schematic diagram of the structure of the thin-walled cylinder (4) from direction B; Figure 5-5 This is a structural schematic diagram of a thin-walled cylinder (4)B, enlarged view.

[0020] Referring to the above figures, the milling and turning fixture for thin-walled cylinder components includes three parts: a first push rod (1), a second push rod (2), and an inner liner (3). Since there are notches on both sides of the inner liner (3), its inner diameter can be changed when subjected to external force. For example, applying an axial force to the first push rod (1) and the second push rod (2) on the thin-walled cylinder (4) will cause the first push rod (1) and the second push rod (2) to be completely inserted into both sides of the inner liner (3), thus fixing it in place. The first push rod (1) pushes into the left side of the inner liner (3), causing its left end to expand and provide left-side support for the thin-walled cylinder (4). The second push rod (2) pushes into the right side of the inner liner (3), causing its right end to expand and provide right-side support for the thin-walled cylinder (4). The liner (3) expands inside the thin-walled cylinder (4) mainly due to the action of the first push rod (1) and the second push rod (2), which plays a role in fixing the thin-walled cylinder (4), reducing the vibration of the thin-walled cylinder (4) during the processing, and improving the processing accuracy, processing efficiency and safety.

[0021] In some embodiments, the first push rod (1) is made of No. 45 steel after quenching and tempering. The front end is a frustum shape and the rear end is a cylinder shape. The overall length is 160mm. The large diameter of the front frustum is 45mm, the small diameter of the front frustum is 35mm, and the diameter of the rear cylindrical part is 30mm. The first push rod (1) is located at the left end of the milling and turning fixture for thin-walled cylinder parts, so that the left side of the inner liner (3) expands and fixes the left side of the thin-walled cylinder (4).

[0022] In some embodiments, the second push rod (2) is made of No. 45 steel after quenching and tempering. The front end is a frustum shape and the rear end is a cylinder shape. The overall length is 80mm. The large diameter of the front frustum is 45mm, the small diameter of the front frustum is 35mm, and the diameter of the rear cylindrical part is 35mm. The second push rod (2) is located at the right end of the milling and turning fixture for thin-walled cylinder parts, so that the right side of the inner liner (3) expands and fixes the right side of the thin-walled cylinder (4).

[0023] In some embodiments, the liner (3) is made of No. 45 steel after quenching and tempering, with a total length of 160mm and eight evenly distributed 1.5mm wide and 55mm long slots at both ends. The liner (3) is located inside the thin-walled cylinder (4) and plays a role in fixing the thin-walled cylinder (4).

[0024] In some embodiments, the machining method for thin-walled cylindrical components using a milling and turning fixture includes the following steps: Step 1. Place the liner (3) inside the thin-walled cylinder (4) to be processed; Step 2. Place the first push rod (1) and the second push rod (2) on both sides of the inner lining respectively; Step 3. Adjust the milling and turning center so that the first push rod (1) and the second push rod (2) are fully inserted into the inner liner (3) and the thin-walled cylinder (4) is completely fixed by the inner liner (3); Step 4. Start the milling and turning center to perform milling and turning of the thin-walled cylinder (4).

[0025] This utility model has a simple structure and is safe to use. It can be used for milling and turning of thin-walled cylindrical parts. It changes the previous method of reducing the machine speed, depth of cut and feed rate to improve the workpiece machining quality and requires secondary clamping. With this fixture, machining can be completed in one step on the milling and turning machine, which greatly improves machining accuracy, machining efficiency and machining safety, and saves raw materials.

[0026] It should be noted that the above process operations can be combined to varying degrees. For the sake of brevity, the implementation methods of various combinations will not be elaborated here. Those skilled in the art can flexibly adjust the order of the above operation steps or flexibly combine the above steps according to actual needs.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should be covered within the protection scope of this utility model.

Claims

1. A milling and turning fixture for thin-walled cylindrical components, used for machining thin-walled cylinders (4), characterized in that, Includes: a first push rod (1), a second push rod (2), and an inner liner (3), wherein: the inner liner (3) is placed inside the thin-walled cylinder (4), and the first push rod (1) and the second push rod (2) are respectively pushed against the two ends of the thin-walled cylinder (4), so that the two ends of the two push rods are inserted into the inner liner (3). Under the action of force, the two push rods will cause the inner liner (3) to expand, thereby playing a supporting role for the thin-walled cylinder (4), reducing the vibration generated by the thin-walled cylinder (4) during processing, and reducing the deformation generated during processing.

2. The milling and turning fixture for thin-walled cylindrical parts as described in claim 1, characterized in that, in: The first push rod (1), the second push rod (2), and the inner lining (3) are all made of No. 45 steel and are heat-treated to increase toughness.

3. The milling and turning fixture for thin-walled cylindrical parts as described in claim 1, characterized in that, in: The first push rod (1), the second push rod (2), and the inner liner (3) are fixed only by the clamping force between them and the thin-walled cylinder (4).

4. The milling and turning fixture for thin-walled cylindrical parts as described in claim 1, characterized in that, in: The first push rod (1) has a frustum shape at the front end and a cylindrical shape at the rear end. The overall length is 160mm, the major diameter of the frustum at the front end is 45mm, the minor diameter of the frustum at the front end is 35mm, and the diameter of the cylindrical part at the rear end is 30mm.

5. A milling and turning fixture for thin-walled cylindrical parts as described in claim 4, characterized in that, in: The first push rod (1) is located at the left end of the milling fixture for thin-walled cylinder parts, causing the left side of the inner liner (3) to expand, which plays a role in fixing the left side of the thin-walled cylinder (4).

6. The milling and turning fixture for thin-walled cylindrical parts as described in claim 1, characterized in that, in: The second push rod (2) has a frustum shape at the front end and a cylindrical shape at the rear end. The overall length is 80mm, the major diameter of the frustum at the front end is 45mm, the minor diameter of the frustum at the front end is 35mm, and the diameter of the cylindrical part at the rear end is 35mm.

7. A milling and turning fixture for thin-walled cylindrical parts as described in claim 1, characterized in that, in: The second push rod (2) is located at the right end of the milling fixture for thin-walled cylinder parts, causing the right side of the inner liner (3) to expand, which in turn fixes the right side of the thin-walled cylinder (4).

8. A milling and turning fixture for thin-walled cylindrical parts as described in any one of claims 1-7, characterized in that, in: The liner (3) is 160mm long and has eight evenly distributed 1.5mm wide and 55mm long slots at both ends. The liner (3) is located inside the thin-walled cylinder (4) and plays a role in fixing the thin-walled cylinder (4).

Images