Vibration absorption sleeve type cutter

Abstract

The utility model discloses a vibration absorption sleeve type cutter, and relates to the technical field of machine tool machining. A vibration absorption sleeve type cutter comprises a sleeve body, the interior of the sleeve body is hollow and used for containing a workpiece to be machined, and a plurality of first weight reduction round holes are formed in the side wall of the sleeve body; the device further comprises a vibration absorption protection sleeve. A top plate used for being connected with a boring-milling machine is arranged at the top end of the barrel, and an annular plate is arranged at the bottom end of the barrel. And a cutter box for mounting a boring cutter is arranged on the bottom surface of the annular plate. The machining device can effectively machine the outer circle of a valve shaft of the ball valve of the pumped storage generator set, the inner circle of a valve body hole and related workpiece parts of similar structures, can effectively improve the working efficiency, and is convenient to operate, high in safety and stability and beneficial to actual production, popularization and application, and machined products are good in quality.

Description

Technical Field

[0001] The present application relates to the technical field of machine tool processing, and in particular to a vibration absorbing sleeve-type tool. Background Art

[0002] In the ball valve manufacturing process of pumped storage generator sets, the ball valve assembly is composed of the valve body and the valve. The outer diameter of the valve shaft and the inner diameter of the valve body hole are usually processed by a boring machine using an inclusive sleeve tool or a vertical lathe using a tool bar due to structural limitations. Since the diameter of the valve shaft of a general ball valve is about 900mm, if a vertical lathe is used for processing, it is often difficult to clamp the workpiece, and special tooling needs to be designed and manufactured, which is costly and inefficient; and because the chuck speed is low, the cutting line speed of the tool is too low, and the surface roughness of the shaft and the hole cannot meet the design requirements, so it can only be processed by a boring and milling machine.

[0003] When using large boring and milling machines to process shaft parts with limited processing space, if conventional tools are used, the aspect ratio of the tool bar will increase significantly, causing its rigidity to drop sharply, and the quality of the final processed product will not meet the design requirements. Utility Model Content

[0004] The purpose of the present application is to provide a vibration-absorbing sleeve-type tool, which can effectively process the outer circle of the valve shaft of the ball valve of the pumped-storage generator set, the inner circle of the valve body hole, and related workpiece parts of similar structures, can effectively improve work efficiency, and the processed products are of good quality, easy to operate, and have high safety and stability, which is conducive to actual production promotion and application.

[0005] The technical solution of this application is as follows:

[0006] The embodiment of the present application provides a vibration absorbing sleeve-type tool, which includes a cylinder, the interior of the cylinder is hollow for accommodating a workpiece to be processed, and the side wall of the cylinder is provided with a plurality of first weight-reducing circular holes, and the plurality of first weight-reducing circular holes are arranged at intervals along the circumferential direction of the side wall of the cylinder to form an array;

[0007] It also includes a vibration absorbing protective sleeve, which is sleeved outside the cylinder and fits against the side wall of the cylinder;

[0008] The top end of the cylinder is provided with a top plate for connecting to a boring and milling machine, and the bottom end of the cylinder is provided with a ring plate;

[0009] The bottom surface of the ring plate is provided with a tool box for installing a boring tool.

[0010] Furthermore, in some embodiments of the present application, the vibration absorbing protective sleeve comprises a reinforcing layer, a vibration absorbing layer and a protective layer which are sequentially arranged from the inside to the outside, and the reinforcing layer, the vibration absorbing layer and the protective layer together form a sandwich structure; the reinforcing layer is in contact with the side wall of the cylinder.

[0011] Further, in some embodiments of the present application, the thickness of the reinforcing layer is 2 mm, the thickness of the vibration absorbing layer is 5 mm, and the thickness of the protective layer is 1 mm;

[0012] The material of the reinforcing layer is aluminum alloy, the material of the vibration absorbing layer is rubber, and the material of the protective layer is iron alloy.

[0013] Further, in some embodiments of the present application, the number of the first weight-reducing circular holes is 108, and the 108 first weight-reducing circular holes are arranged at intervals along the circumferential direction of the side wall of the cylinder to form an array;

[0014] The inner diameter of any one of the first weight-reducing circular holes is 100 mm.

[0015] Further, in some embodiments of the present application, a connecting boss is provided at the center of the top plate, and the connecting boss is provided with a mounting shaft hole for connecting the shaft body of the boring and milling machine, a plurality of bolt holes for connection and fixing, and a plurality of positioning through grooves for positioning;

[0016] The mounting shaft hole is located at the center of the connecting boss;

[0017] The plurality of bolt holes are arranged at intervals along the circumference of the mounting shaft hole;

[0018] The plurality of positioning through grooves are arranged at intervals along the circumference of the mounting shaft hole.

[0019] Furthermore, in some embodiments of the present application, the top plate is provided with a plurality of second weight-reducing circular holes, and the plurality of second weight-reducing circular holes are arranged at intervals along the circumference of the top plate.

[0020] Further, in some embodiments of the present application, the number of the second weight-reducing circular holes is 6, and the 6 second weight-reducing circular holes are arranged at intervals along the circumference of the top plate;

[0021] The inner diameter of any one of the second weight-reducing circular holes is 100 mm.

[0022] Further, in some embodiments of the present application, the bottom surface of the ring plate is provided with a first mounting groove for mounting the knife box, the knife box is provided with a mounting convex strip matching the first mounting groove, and the mounting convex strip is embedded in the first mounting groove;

[0023] The tool box is provided with a cavity for installing the boring tool.

[0024] Furthermore, in some embodiments of the present application, a CNC tool head for connecting a boring tool is provided on the outward side of the cavity.

[0025] Furthermore, in some embodiments of the present application, a second mounting groove for mounting a dial indicator is also provided on the bottom surface of the ring plate.

[0026] Furthermore, in some embodiments of the present application, the second mounting groove is arranged opposite to the first mounting groove.

[0027] Compared with the prior art, the embodiments of the present application have at least the following advantages or beneficial effects:

[0028] In view of the above aspects, an embodiment of the present application provides a vibration-absorbing sleeve-type tool. When the tool is in use, the valve shaft, valve body, or other shaft workpiece of similar structure to be processed is fixed on the workbench, and sufficient space is left for the vibration-absorbing sleeve-type tool to rotate and work; the entire device is installed and fixed on the output shaft of the boring and milling machine through the top plate, and the central axis of the shaft workpiece to be processed is aligned with the central axis of the cylinder, and the extended length of the boring tool installed in the tool box is adjusted according to work requirements; the boring and milling machine is started to rotate and move the vibration-absorbing sleeve-type tool, and the shaft workpiece is processed using the boring tool.

[0029] During its operation, the rotation of the cylinder drives the boring tool installed in the tool box to rotate at a larger radius to ensure that the cutting line speed of the boring tool can meet the working requirements. Since the cylinder itself has a large weight, in order to ensure its stable working state, it is necessary to make the cylinder wall of the cylinder thin enough, and reduce the overall weight by opening a plurality of the first weight-reducing circular holes; wherein, the plurality of circular first weight-reducing circular holes are evenly distributed and arranged on the side wall of the cylinder to form an array, which can reduce the weight of the cylinder while ensuring its stability during rotation. However, since the use of a thin-walled structure and opening holes to reduce weight will inevitably reduce its strength performance, it is easily affected by vibration during the rotary cutting process. For this reason, the outer wall of the cylinder is covered with the vibration-absorbing protective sleeve. The vibration-absorbing protective sleeve adopts a material structure different from that of the cylinder. The vibration-absorbing protective sleeve can be used to reinforce and protect the cylinder, and absorb and buffer the vibration generated during the rotary cutting process, thereby further ensuring working stability and processing quality.

[0030] The device has a simple overall structure and is easy to install and operate. It can effectively improve workpiece processing efficiency and quality, has high safety and stability, and is conducive to actual production promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic structural diagram of a vibration absorbing sleeve-type tool provided in an embodiment of the present application;

[0033] Figure 2 A front view of a vibration absorbing sleeve-type tool provided in an embodiment of the present application;

[0034] Figure 3 A cross-sectional view of a vibration absorbing sleeve-type tool provided in an embodiment of the present application;

[0035] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0036] Figure 5 A top view of a vibration-absorbing sleeve-type tool provided in an embodiment of the present application.

[0037] Figure markings: 1-cylinder, 11-first weight-reducing circular hole, 2-vibration-absorbing protective sleeve, 21-reinforcement layer, 22-vibration-absorbing layer, 23-protective layer, 3-top plate, 31-connecting boss, 32-mounting shaft hole, 33-bolt hole, 34-positioning through groove, 35-second weight-reducing circular hole, 4-ring plate, 41-second mounting groove, 5-knife box, 51-CNC tool head. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the embodiments of the present application, it should be noted that if the terms "center", "top", "bottom", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In the description of the embodiments of the present application, "plurality" means at least 2.

[0043] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the process, method, article or device including its elements.

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0045] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0046] Example 1

[0047] See also Figure 1 to Figure 5 The embodiment of the present application provides a vibration absorbing sleeve-type tool, which includes a cylinder 1, the cylinder 1 is hollow inside for accommodating a workpiece to be processed, and the side wall of the cylinder 1 is provided with a plurality of first weight-reducing circular holes 11, and the plurality of first weight-reducing circular holes 11 are arranged at intervals along the circumferential direction of the side wall of the cylinder 1 to form an array;

[0048] It also includes a vibration absorbing protective sleeve 2, which is sleeved outside the cylinder 1 and fits with the side wall of the cylinder 1;

[0049] The top end of the cylinder 1 is provided with a top plate 3 for connecting to a boring and milling machine, and the bottom end of the cylinder 1 is provided with a ring plate 4;

[0050] The bottom surface of the ring plate 4 is provided with a tool box 5 for mounting a boring tool.

[0051] In the above embodiment, the cylinder 1 is a thin-walled structure. When it is used, the valve shaft, valve body, or other shaft workpiece of similar structure to be processed is fixed on the workbench, and sufficient space is reserved for the vibration-absorbing sleeve-type tool to rotate and work; the entire device is installed and fixed on the output shaft of the boring and milling machine through the top plate 3, and the central axis of the shaft workpiece to be processed is aligned with the central axis of the cylinder 1, and the extension length of the boring tool installed in the tool box 5 is adjusted according to work requirements; the boring and milling machine is started to rotate and move the vibration-absorbing sleeve-type tool, and the shaft workpiece is processed by the boring tool.

[0052] Furthermore, in some embodiments of the present application, the vibration absorbing protective sleeve 2 includes a reinforcing layer 21, a vibration absorbing layer 22 and a protective layer 23 which are sequentially arranged from the inside to the outside, and the reinforcing layer 21, the vibration absorbing layer 22 and the protective layer 23 together form a sandwich structure; the reinforcing layer 21 is in contact with the side wall of the cylinder 1.

[0053] In the above embodiment, the above-mentioned reinforcement layer 21 is directly bonded to the above-mentioned cylinder 1, and its main purpose is to structurally reinforce the above-mentioned cylinder 1 which is thin-walled and has the above-mentioned first weight-reducing circular hole 11 and has undergone weight-reduction treatment, so as to improve its overall strength of use; the above-mentioned vibration-absorbing layer 22 is used to buffer and absorb the mechanical vibration generated during the rotary cutting process; the above-mentioned protective layer 23 is used to protect the above-mentioned vibration-absorbing layer 22, so as to prevent the above-mentioned vibration-absorbing layer 22 from being interfered with by external factors and causing failure, and at the same time it can also play a certain reinforcement role.

[0054] Further, in some embodiments of the present application, the thickness of the reinforcing layer 21 is 2 mm, the thickness of the vibration absorbing layer 22 is 5 mm, and the thickness of the protective layer 23 is 1 mm;

[0055] In the above embodiments, the thicknesses of the reinforcing layer 21, the vibration absorbing layer 22 and the protective layer 23 are respectively limited. If the thickness is too thin, the reinforcing layer 21, the vibration absorbing layer 22 and the protective layer 23 cannot fully exert their respective functions. If the thickness is too thick, the overall weight of the device will be too large, which is not conducive to the rotary cutting process.

[0056] The reinforcing layer 21 is made of aluminum alloy, the vibration absorbing layer 22 is made of rubber, and the protective layer 23 is made of iron alloy.

[0057] In the above embodiments, the materials of the reinforcing layer 21 , the vibration absorbing layer 22 and the protective layer 23 are respectively limited so as to fully meet their respective functional requirements and better exert their respective functional effects.

[0058] Further, in some embodiments of the present application, the number of the first weight-reducing circular holes 11 is 108, and the 108 first weight-reducing circular holes 11 are arranged at intervals along the circumferential direction of the side wall of the cylinder 1 to form an array;

[0059] The inner diameter of any of the first weight-reducing circular holes 11 is 100 mm.

[0060] In the above embodiment, the number and inner diameter of the above-mentioned first weight-reducing circular holes 11 are limited to ensure that the above-mentioned first weight-reducing circular holes 11 can be evenly distributed on the side wall of the above-mentioned cylinder 1, thereby ensuring the stability of the structure while being able to fully reduce the weight of the above-mentioned cylinder 1.

[0061] Further, in some embodiments of the present application, a connecting boss 31 is provided at the center of the top plate 3, and the connecting boss 31 is provided with a mounting shaft hole 32 for connecting the shaft body of the boring and milling machine, a plurality of bolt holes 33 for connection and fixing, and a plurality of positioning through grooves 34 for positioning;

[0062] The mounting shaft hole 32 is located at the center of the connecting boss 31;

[0063] The plurality of bolt holes 33 are arranged at intervals along the circumferential direction of the mounting shaft hole 32;

[0064] The plurality of positioning through grooves 34 are arranged at intervals along the circumferential direction of the mounting shaft hole 32 .

[0065] In the above embodiment, the positioning is performed through the positioning groove 34 , and the top plate 3 together with the entire device is fixed on the boring and milling machine by bolts in cooperation with the mounting shaft hole 32 and the plurality of bolt holes 33 .

[0066] Furthermore, in some embodiments of the present application, the top plate 3 is provided with a plurality of second weight-reducing circular holes 35 , and the plurality of second weight-reducing circular holes 35 are arranged at intervals along the circumference of the top plate 3 .

[0067] In the above embodiment, the weight of the top plate 3 is reduced by providing the second weight-reducing circular hole 35, so as to further reduce the weight of the entire device and ensure the rotary cutting operation.

[0068] Further, in some embodiments of the present application, the number of the second weight-reducing circular holes 35 is 6, and the 6 second weight-reducing circular holes 35 are arranged at intervals along the circumferential direction of the top plate 3;

[0069] The inner diameter of any one of the second weight-reducing circular holes 35 is 100 mm.

[0070] In the above embodiment, the number and inner diameter of the above-mentioned second weight-reducing circular holes 35 are further limited so that the above-mentioned second weight-reducing circular holes 35 can be evenly distributed on the above-mentioned top plate 3, thereby reducing the weight of the above-mentioned top plate 3 while ensuring its structural stability.

[0071] Further, in some embodiments of the present application, the bottom surface of the ring plate 4 is provided with a first mounting groove for mounting the knife box 5, and the knife box 5 is provided with a mounting convex strip matching the first mounting groove;

[0072] The tool box 5 is provided with a cavity for installing a boring tool.

[0073] In the above embodiment, a plurality of screw holes are further provided around the periphery of the above first mounting groove, the above mounting convex strip is embedded and installed into the above first mounting groove, and the above knife box 5 is fixed to the bottom surface of the above ring plate 4 by bolts;

[0074] The boring cutter is embedded in the cavity to prevent the boring cutter from falling off during the cutting process, thereby ensuring the smooth progress of the cutting process.

[0075] Furthermore, in some embodiments of the present application, a CNC tool head 51 for connecting a boring tool is provided on the outward side of the cavity.

[0076] In the above embodiment, the boring tool is mounted on the above CNC tool head 51 , and the above CNC tool head 51 is used to achieve precise control of the boring tool.

[0077] Furthermore, in some embodiments of the present application, a second mounting groove 41 for mounting a dial indicator is further provided on the bottom surface of the ring plate 4 .

[0078] Furthermore, in some embodiments of the present application, the second mounting groove 41 is disposed opposite to the first mounting groove.

[0079] In the above embodiment, by reserving the second installation groove 41, a dial indicator can be additionally installed to detect the concentricity of the processed hole and the shaft, thereby ensuring the processing quality.

[0080] In summary, the embodiment of the present application provides a vibration-absorbing sleeve-type tool, during the operation of which, the rotation of the cylinder 1 drives the boring tool installed in the tool box 5 to rotate at a larger radius to ensure that the boring tool cutting line speed can meet the working requirements. Since the cylinder 1 itself has a large weight, in order to ensure its stable working state, it is necessary to make the cylinder wall of the cylinder 1 thin enough, and reduce the overall weight by opening a plurality of the first weight-reducing circular holes 11; wherein, the plurality of circular first weight-reducing circular holes 11 are evenly distributed and arranged on the side wall of the cylinder 1 to form an array, which can reduce the weight of the cylinder 1 while ensuring its stability during rotation. However, since the use of thin-walled structures and openings to reduce weight will inevitably reduce its strength performance, it is easily affected by vibration during the rotary cutting process. For this reason, the outer wall of the cylinder 1 is covered with the vibration absorbing protective sleeve 2. The vibration absorbing protective sleeve 2 uses a different material structure from the cylinder 1. The vibration absorbing protective sleeve 2 can be used to reinforce and protect the cylinder 1, and absorb and buffer the vibration generated during the rotary cutting process, thereby further ensuring working stability and processing quality. The overall structure of the device is simple, easy to install and operate, can effectively improve the processing efficiency and quality of workpieces, has high safety and stability, and is conducive to actual production promotion and application.

[0081] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A vibration absorbing sleeve type tool, characterized in that: It comprises a cylinder, the interior of which is hollow for accommodating a workpiece to be processed, a side wall of which is provided with a plurality of first weight-reducing circular holes, and the plurality of first weight-reducing circular holes are arranged at intervals along the circumferential direction of the side wall of the cylinder to form an array; It also includes a vibration absorbing protective sleeve, which is sleeved outside the cylinder and fits against the side wall of the cylinder; The top end of the cylinder is provided with a top plate for connecting to a boring and milling machine, and the bottom end of the cylinder is provided with a ring plate; The bottom surface of the ring plate is provided with a tool box for installing a boring tool.

2. A vibration absorbing sleeve type tool according to claim 1, characterized in that: The vibration absorbing protective sleeve comprises a reinforcing layer, a vibration absorbing layer and a protective layer which are arranged in sequence from the inside to the outside, and the reinforcing layer, the vibration absorbing layer and the protective layer together form a sandwich structure; the reinforcing layer is in contact with the side wall of the cylinder.

3. A vibration absorbing sleeve type tool according to claim 2, characterized in that: The thickness of the reinforcing layer is 2 mm, the thickness of the vibration absorbing layer is 5 mm, and the thickness of the protective layer is 1 mm; The reinforcing layer is made of aluminum alloy, the vibration absorbing layer is made of rubber, and the protective layer is made of iron alloy.

4. A vibration absorbing sleeve type tool according to claim 1, characterized in that: The number of the first weight-reducing circular holes is 108, and the 108 first weight-reducing circular holes are arranged at intervals along the circumferential direction of the side wall of the cylinder to form an array; The inner diameter of any one of the first weight-reducing circular holes is 100 mm.

5. The vibration absorbing sleeve type tool according to claim 1, characterized in that: A connecting boss is provided at the center of the top plate, and the connecting boss is provided with a mounting shaft hole for connecting the shaft body of the boring and milling machine, a plurality of bolt holes for connection and fixing, and a plurality of positioning through grooves for positioning; The mounting shaft hole is located at the center of the connecting boss; The plurality of bolt holes are arranged at intervals along the circumference of the mounting shaft hole; A plurality of positioning through grooves are arranged at intervals along the circumference of the mounting shaft hole.

6. A vibration absorbing sleeve type tool according to claim 1, characterized in that: The top plate is provided with a plurality of second weight-reducing circular holes, and the plurality of second weight-reducing circular holes are arranged at intervals along the circumference of the top plate.

7. A vibration absorbing sleeve type tool according to claim 6, characterized in that: The number of the second weight-reducing circular holes is 6, and the 6 second weight-reducing circular holes are arranged at intervals along the circumference of the top plate; The inner diameter of any one of the second weight-reducing circular holes is 100 mm.

8. The vibration absorbing sleeve type tool according to claim 1, characterized in that: The bottom surface of the ring plate is provided with a first mounting groove for mounting the knife box, and the knife box is provided with a mounting convex strip matching the first mounting groove, and the mounting convex strip is embedded in the first mounting groove; The tool box is provided with a cavity for installing a boring tool.

9. A vibration absorbing sleeve type tool according to claim 8, characterized in that: A numerical control tool head for connecting a boring tool is arranged on the outward side of the cavity.

10. The vibration absorbing sleeve type tool according to claim 1, characterized in that: The bottom surface of the ring plate is also provided with a second mounting groove for mounting a dial indicator.

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