Cutter rigidity increasing device

Abstract

The embodiment of the utility model discloses a cutter rigidity increasing device, which comprises a ring clamp, a clamping ring, a clamping ring, a clamping ring and a driving device, wherein the diameter of the ring clamp is matched with that of a cutter bar of a cutter to be clamped; the connecting column and the ring clamp are integrally formed or fixedly connected; the telescopic rod is movably connected with the inner cavity of the connecting column, an elastic piece is arranged on the outer side of the telescopic rod in a sleeving mode, and the telescopic rod can stretch out and draw back in the inner cavity and can rotate in the circumferential direction; the movable connecting part is connected to the end of the telescopic rod and used for sliding after making contact with the inner wall of a shell to be machined. The rigidity of the cutter is improved, and vibration of the cutter is reduced.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a tool rigidity increasing device. Background Art

[0002] For a certain thin-walled shell, with an outer shape of φ500mm×2000mm and a wall thickness of 5mm, when turning the area within the distal 1 / 3 of its inner wall, the rigidity is severely lost due to the excessive overhang of the tool. Even if the cutting amount is small, the tool still vibrates severely and the machining accuracy of the inner wall of the shell cannot be guaranteed.

[0003] There is currently no effective solution to the problem of tool vibration caused by reduced tool rigidity in the prior art. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a device for increasing tool rigidity. By installing the device near the turning tool head, the turning tool head is no longer suspended in the air. The elastic telescopic rod is used to support the inner wall of the thin-walled shell. The supporting force generated by the elastic telescopic rod offsets the radial cutting force of the tool, thereby reducing tool deformation during the cutting process and improving the rigidity of the turning tool.

[0005] To achieve the above-mentioned purpose, the utility model provides a device for increasing the rigidity of a tool, comprising: a ring clamp, the diameter of which is adapted to the tool rod of the tool to be clamped; a connecting column, the connecting column and the ring clamp are integrally formed or fixedly connected; a telescopic rod, the telescopic rod is movably connected to the inner cavity of the connecting column, an elastic member is sleeved on the outer side, the telescopic rod can be telescoped in the inner cavity and can rotate circumferentially; a movable connecting part, the movable connecting part is connected to the end of the telescopic rod, and is used to slide after contacting the inner wall of the shell to be processed.

[0006] Further optionally, the ring clamp is provided with a plurality of fasteners, and the guide rod for clamping the tool is fastened by adjusting the fasteners.

[0007] Further optionally, the fastener is a locking bolt.

[0008] Further optionally, the telescopic rod is movably connected to the inner cavity of the connecting column via a thrust bearing.

[0009] Further optionally, the width of the end of the telescopic rod inserted into the inner cavity is greater than the distance between the thrust bearings.

[0010] Further optionally, the movable connection part includes a fixed tile and an elastic ball; the fixed tile is fixedly connected to the telescopic rod; the elastic ball is movably connected to the fixed tile and can rotate in any direction.

[0011] Further optionally, the fixed tile includes a first sub-fixed tile and a second sub-fixed tile; the first sub-fixed tile and the second sub-fixed tile are both hemispherical, and the two are connected to form the fixed tile, so that the elastic ball rolls in a semi-wrapped state.

[0012] Further optionally, the ring clamp includes a first sub-clamp and a second sub-clamp; the first sub-clamp and the second sub-clamp are connected via an adjusting member, and the diameter of the ring clamp is controlled by the adjusting member.

[0013] Further optionally, the elastic member is a spring.

[0014] Further optionally, the elastic force of the spring and the length of the telescopic rod are set according to the tool to be clamped.

[0015] The above technical scheme has the following beneficial effects: the tool rod of the tool is fixed by the ring clamp so that the turning tool is no longer suspended in the air, and the rigidity of the turning tool is increased after being supported, the cutting vibration is reduced to an allowable range, and the processing accuracy of the inner wall of the shell is guaranteed; the elastic telescopic rod of the device is used to press against the inner wall of the thin-walled shell, and the supporting force generated by it and the radial cutting force of the tool offset each other, thereby reducing the deformation of the tool during the cutting process and improving the rigidity of the turning tool; when the turning tool moves forward for cutting, the elastic ball at the front end of the telescopic rod moves synchronously with the turning tool, and the elastic ball is always in contact with the curved surface of the inner wall of the shell, which serves to increase the rigidity of the turning tool; the telescopic rod of the device has a certain telescopic range, and the supporting force can be adjusted by replacing springs of different specifications to adapt to the cutting force of different back cutting amounts; the device is easy to load and unload, can flexibly adjust the vibration resistance, is compact and practical, and can effectively improve the rigidity of the long overhang turning tool during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a tool rigidity increasing device provided by an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of another perspective of the tool rigidity increasing device provided by an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the tool rigidity increasing device provided by the embodiment of the utility model when in use.

[0020] Figure numerals: Ι-shell to be processed; Ⅱ-tool to be clamped; Ⅲ-tool rigidity increasing device; 1-ring clamp; 2-fastener; 3-thrust bearing; 4-telescopic rod; 01-movable connection part; 5-fixed tile; 6-elastic ball; 7-elastic part. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to solve the problem of tool vibration caused by the reduction of tool rigidity in the prior art, the embodiment of the utility model provides a tool rigidity increasing device, such as Figure 1 , 2 As shown, the device III includes: a ring clamp 1, the diameter of which is adapted to the tool rod of the tool II to be clamped; a connecting column, the connecting column and the ring clamp 1 are integrally formed or fixedly connected; a telescopic rod 4, the telescopic rod 4 is movably connected to the inner cavity of the connecting column, and an elastic member 7 is sleeved on the outer side, which can be telescopic and rotatable in the inner cavity; a movable connecting part 01, the movable connecting part 01 is connected to the end of the telescopic rod 4, and is used to slide after contacting the inner wall of the shell Ι to be processed.

[0023] The ring clamp 1 is annular in shape as a whole, and its inner circle can be inserted into a suitable position of the tool rod of the tool II to be clamped to clamp the tool.

[0024] A connecting column extends from one side of the ring clamp 1. The interior of the connecting column is hollow and has an opening at the bottom. One end of the telescopic rod 4 penetrates into the inner cavity of the connecting column and is movably connected to the connecting column. The connecting column can not only move up and down in the inner cavity, but also move circumferentially. An elastic member 7 is also sleeved on the outside of the connecting member. Specifically, one end of the elastic member 7 abuts against the bottom of the connecting column, and the other end abuts against the top of the movable connecting part 01.

[0025] As an optional implementation, the connecting column and the ring clamp 1 can be integrally formed or fixedly connected.

[0026] The top of the movable connection part 01 is connected to the other end of the telescopic rod 4, and the bottom can move along the inner wall of the shell 1 to be processed.

[0027] like Figure 3As shown, during specific use, for example, when a turning tool with an effective length greater than two meters is turning the distal end of the inner wall of a thin-walled shell, the device is pre-installed on the turning tool head, that is, the ring clamp 1 is sleeved on the tool rod, and the movable connection part 01 is pressed against the inner wall of the thin-walled shell through the telescopic rod 4 sleeved with an elastic member 7, the generated supporting force and the radial cutting force of the tool offset each other, thereby reducing the deformation of the tool during the cutting process and improving the rigidity of the turning tool.

[0028] In addition, when the turning tool moves forward or backward for cutting, the movable connection part 01 at the end of the telescopic rod 4 locks the turning tool to move synchronously, and it is always in contact with the curved surface of the inner wall of the shell, always ensuring the rigidity of the turning tool.

[0029] As an optional embodiment, the ring clamp 1 is provided with a plurality of fasteners 2, and the guide rod of the tool II to be clamped is fastened by adjusting the fasteners 2.

[0030] like Figure 1 As shown, the ring clamp 1 is provided with a plurality of fasteners 2. When the ring clamp 1 is sleeved on the tool arbor of the tool II to be clamped, the tool arbor can be tightened by adjusting the plurality of fasteners 2 to improve the clamping stability.

[0031] As an optional implementation, for ring clamps 1 of different models and diameters, when different models of tools are used, the ring clamps 1 of different diameters can be replaced in a targeted manner to stably clamp the current tool.

[0032] Furthermore, in this embodiment, two fasteners 2 are provided, and the two fasteners 2 are symmetrically opened on the ring clamp 1.

[0033] As an optional implementation, the fastener 2 is a locking bolt.

[0034] In order to improve the clamping efficiency, the fastener 2 in this embodiment adopts a locking bolt, and the length of the locking bolt in the inner circle of the ring clamp 1 is adjusted by rotating the locking bolt to control the fixing tightness of the tool rod.

[0035] As an optional implementation, the telescopic rod 4 is movably connected to the inner cavity of the connecting column via a thrust bearing 3 .

[0036] like Figure 1 As shown, the telescopic rod 4 is connected to the inner cavity of the connecting column through the thrust bearing 3 to ensure the circumferential rotation of the telescopic rod 4.

[0037] As an optional implementation, a groove is provided on the inner wall of the connecting column for accommodating the thrust bearing 3 .

[0038] As an optional implementation, the width of the end of the telescopic rod 4 inserted into the inner cavity is greater than the distance between the thrust bearings 3 .

[0039] The width of one end of the telescopic rod 4 is greater than the distance between the two thrust bearings 3, so as to prevent the telescopic rod 4 from falling out of the connecting column.

[0040] As an optional embodiment, the movable connection part 01 includes a fixed tile 5 and an elastic ball 6; the fixed tile 5 is fixedly connected to the telescopic rod 4; the elastic ball 6 is movably connected to the fixed tile 5 and can rotate in any direction.

[0041] The movable connection part 01 includes a fixed tile 5 and an elastic ball 6. The fixed tile 5 is used to connect the elastic ball 6 and the telescopic rod 4. The elastic ball 6 can rotate in any direction to ensure that when the tool moves, the entire device can move accordingly.

[0042] As an optional embodiment, the fixed tile 5 includes a first sub-fixed tile and a second sub-fixed tile; the first sub-fixed tile and the second sub-fixed tile are both hemispherical, and the two are connected to form the fixed tile 5, so that the elastic ball 6 rolls in a semi-wrapped state.

[0043] The fixing tile 5 is formed by connecting two hemispherical sub-fixing tiles, which can cover the upper hemisphere of the elastic ball 6, so that the elastic ball 6 can roll in a semi-wrapped state.

[0044] As an optional implementation, the ring clamp 1 includes a first sub-clamp and a second sub-clamp; the first sub-clamp and the second sub-clamp are connected via an adjusting member, and the diameter of the ring clamp 1 is controlled by the adjusting member.

[0045] The ring clamp 1 includes a first sub-clamp and a second sub-clamp, both of which are semicircular and connected by an adjusting piece. By rotating the adjusting piece, the first sub-clamp and the second sub-clamp can be relatively moved away from or close to each other, thereby adjusting the diameter of the ring clamp 1.

[0046] As an optional implementation, the elastic member 7 is a spring.

[0047] As an optional implementation, the elastic force of the spring and the length of the telescopic rod 4 are set according to the tool II to be clamped.

[0048] The telescopic rod 4 of the device has a certain telescopic range, and the supporting force can be adjusted by replacing springs of different specifications to adapt to cutting forces with different back cutting amounts.

[0049] The above technical scheme has the following beneficial effects: the tool rod of the tool is fixed by the ring clamp so that the turning tool is no longer suspended in the air, and the rigidity of the turning tool is increased after being supported, the cutting vibration is reduced to an allowable range, and the processing accuracy of the inner wall of the shell is guaranteed; the elastic telescopic rod of the device is used to press against the inner wall of the thin-walled shell, and the supporting force generated by it and the radial cutting force of the tool offset each other, thereby reducing the deformation of the tool during the cutting process and improving the rigidity of the turning tool; when the turning tool moves forward for cutting, the elastic ball at the front end of the telescopic rod moves synchronously with the turning tool, and the elastic ball is always in contact with the curved surface of the inner wall of the shell, which serves to increase the rigidity of the turning tool; the telescopic rod of the device has a certain telescopic range, and the supporting force can be adjusted by replacing springs of different specifications to adapt to the cutting force of different back cutting amounts; the device is easy to load and unload, can flexibly adjust the vibration resistance, is compact and practical, and can effectively improve the rigidity of the long overhang turning tool during the cutting process.

[0050] The specific implementation methods of the above utility model further describe in detail the purpose, technical solutions and beneficial effects of the utility model. It should be understood that the above content is only the specific implementation methods of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A tool rigidity increasing device, characterized in that: include: A ring clamp, the diameter of which is adapted to the tool shank of the tool to be clamped; A connecting column, the connecting column is integrally formed with the ring clamp or is fixedly connected with the ring clamp; A telescopic rod, the telescopic rod is movably connected to the inner cavity of the connecting column, an elastic member is sleeved on the outer side, and the telescopic rod can be telescoped in the inner cavity and can rotate circumferentially; The movable connection part is connected to the end of the telescopic rod and is used for sliding after contacting the inner wall of the shell to be processed.

2. The tool rigidity increasing device according to claim 1, characterized in that: The ring clamp is provided with a plurality of fasteners, and the guide rod for clamping the tool is fastened by adjusting the fasteners.

3. The tool rigidity increasing device according to claim 2, characterized in that: The fastener is a locking bolt.

4. The tool rigidity increasing device according to claim 1, characterized in that: The telescopic rod is movably connected to the inner cavity of the connecting column through a thrust bearing.

5. The tool rigidity increasing device according to claim 4, characterized in that: The width of the end of the telescopic rod inserted into the inner cavity is greater than the distance between the thrust bearings.

6. The tool rigidity increasing device according to claim 1, characterized in that: The movable connection part includes a fixed tile and an elastic ball; The fixed tile is fixedly connected to the telescopic rod; The elastic ball is movably connected to the fixed tile and can rotate in any direction.

7. The tool rigidity increasing device according to claim 6, characterized in that: The fixing tile comprises a first sub-fixing tile and a second sub-fixing tile; The first sub-fixing tile and the second sub-fixing tile are both hemispherical, and the two are connected to form the fixing tile, so that the elastic ball rolls in a semi-wrapped state.

8. The tool rigidity increasing device according to claim 1, characterized in that: The ring clamp includes a first sub-clamp and a second sub-clamp; The first sub-clamp is connected to the second sub-clamp via an adjusting member, and the diameter of the ring clamp is controlled by the adjusting member.

9. The tool rigidity increasing device according to claim 1, characterized in that: The elastic member is a spring.

10. The tool rigidity increasing device according to claim 9, characterized in that: The elastic force of the spring and the length of the telescopic rod are set according to the tool to be clamped.

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