Cutter fixing device for CNC machining

Abstract

The utility model relates to the technical field of tool fixing, and provides a CNC machining tool fixing device which comprises a tool apron, a tool body is arranged on the inner side of the tool apron, and a disassembly and assembly structure is arranged on the top of the tool apron. By arranging the dismounting and mounting structure, the limiting plate is inserted into the top of the tool apron through the mounting groove, when one end of the limiting plate is attached to the inner side wall of the tool apron, the central axis of the guide rod and the central axis of the reserved groove are collinear, and at the moment, the guide rod can move up and down through the reserved groove; when the guide rod moves up and down, the guide rod can drive the fixing plate to move through the bottom limiting circular plate, tool bodies of different heights can be conveniently fixed, the limiting plate and the tool apron are slidably connected so that mounting and dismounting can be facilitated, and the fixing plate can be conveniently replaced; according to the cutter fixing device, the functions that the fixing plate is convenient to replace and cutters with different heights can be conveniently pressed and fixed are achieved, and the convenience and the working efficiency of the cutter fixing device during use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool fixing, in particular to a tool fixing device for CNC processing. Background Art

[0002] With the continuous development of the manufacturing industry, the requirements for parts processing accuracy, surface quality, processing efficiency, etc. are getting higher and higher. CNC processing technology, with its high precision, high efficiency and high flexibility, has become an important means to meet these needs. The design of the tool fixing device also affects the processing efficiency. Therefore, it is necessary to design a tool fixing device for CNC processing.

[0003] Traditional tool fixing devices are inconvenient to quickly replace tools and fixing plates during use, and replacement is time-consuming and laborious. Therefore, it is necessary to design a tool fixing device that is easy to operate, can quickly replace tools and convenient to replace fixing plates, so as to reduce processing preparation time and improve production efficiency. Utility Model Content

[0004] The utility model aims to provide a tool fixing device for CNC machining, so as to solve the defects of the existing tool fixing device that it is inconvenient to quickly replace the tool and the fixing plate when in use, and the replacement is time-consuming and laborious.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a tool fixing device for CNC machining, comprising a tool holder;

[0006] A tool body is arranged on the inner side of the tool holder;

[0007] The top of the knife seat is provided with a disassembly structure, and the disassembly structure comprises an installation slot, a limit plate, a guide rod, a top limit circular plate, a reserved slot, a top limit slot, a fixed plate, a bottom limit circular plate and a bottom limit slot, the installation slots are opened on both sides of the top of the knife seat, the interior of the installation slots is provided with limit plates, both sides of the interior of the limit plates penetrate the guide rods, the top of the guide rods is fixed with a top limit circular plate, the top of the limit plate outside the guide rod is provided with a top limit slot, the interior of the knife seat above the top limit slot is provided with a reserved slot, the fixed plate is arranged above the knife body inside the knife seat, the bottom of the fixed plate is evenly provided with bottom limit slots, and the interior of the bottom limit slot is provided with a bottom limit circular plate;

[0008] A limiting structure is evenly arranged on one side of the top of the knife seat, and a pressurizing structure is arranged at the middle position of the top of the knife seat.

[0009] Furthermore, the side view cross section of the installation groove is designed to be "T"-shaped, and the limiting plate and the knife seat form a sliding structure through the installation groove.

[0010] Furthermore, the bottom end of the guide rod extends to the outside of the fixed plate and is fixedly connected to the top end of the bottom limiting circular plate, and the outer diameter of the top limiting circular plate is smaller than the inner diameter of the reserved groove and the inner diameter of the top limiting groove.

[0011] Furthermore, the central axis of the guide rod and the central axis of the reserved groove are collinear, and the bottom end of the fixing plate and the top end of the tool body are in conflict with each other.

[0012] Furthermore, the limiting structure includes a limiting rod, a connecting rod and a limiting hole, the limiting holes are evenly opened on the top of the knife seat, the limiting holes are provided with limiting rods inside, and the top of the limiting rods is fixed with a connecting rod.

[0013] Furthermore, the pressure structure includes a rotating handle, a rotating rod and a pressure plate. The rotating rod runs through the middle position of the top of the knife seat, the rotating handle is fixed to the top of the rotating rod, and the bottom end of the rotating rod extends to the outside of the knife seat and is provided with a pressure plate.

[0014] Furthermore, the rotating rod is threadedly connected to the knife seat, the rotating rod is rotatably connected to the pressure plate, and the bottom end of the pressure plate and the top end of the fixed plate are in conflict with each other.

[0015] The utility model provides a CNC machining tool fixing device, which has the advantages of:

[0016] By providing a disassembly and assembly structure, when in use, the limit plate is inserted into the top of the tool holder through the installation slot. When one end of the limit plate and the inner side wall of the tool holder are in contact with each other, the central axis of the guide rod and the reserved slot are in line. At this time, the guide rod can move up and down through the reserved slot. When the guide rod moves up and down, it will drive the fixed plate to move through the bottom limit circular plate, which can facilitate the fixing of tool bodies of different heights. The limit plate and the tool holder can be slidably connected through the installation slot, which can facilitate installation and disassembly, and can facilitate the replacement of the fixed plate. The device has the functions of facilitating the replacement of the fixed plate and facilitating the pressing and fixing of tools of different heights, thereby improving the convenience and work efficiency of the tool fixing device for CNC machining when in use.

[0017] By setting a limited position structure, after the disassembly and assembly structure is installed, the limit rods are respectively inserted into the limit holes, and the bottom ends of the limit rods extend to the inside of the tool holder along the insertion direction of the limit holes, blocking the opening position of the installation slot, preventing the limit plate from slipping, and increasing the stability of the tool body when in use, so that the device has a limit function, and the stability of the tool fixing device for CNC machining when in use is improved;

[0018] By providing a pressurizing structure, the rotating handle is rotated, the rotating handle drives the rotating rod to rotate, and the rotating rod drives the pressurizing plate to move downward when rotating, until the bottom end of the pressurizing plate and the top end of the fixed plate contact each other, and the bottom end of the fixed plate and the top end of the tool body contact each other, so that the tool body can be clamped and fixed, realizing the function of easy operation and clamping of the device, and improving the convenience of the tool fixing device for CNC machining when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0022] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 It is a schematic diagram of the top cross-sectional structure of the utility model;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the side view section of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. tool holder; 2. tool body; 3. disassembly and assembly structure; 31. mounting groove; 32. limit plate; 33. guide rod; 34. top limit circular plate; 35. reserved groove; 36. top limit groove; 37. fixing plate; 38. bottom limit circular plate; 39. bottom limit groove; 4. limit structure; 41. limit rod; 42. connecting rod; 43. limit hole; 5. pressurizing structure; 51. turning handle; 52. turning rod; 53. pressurizing plate. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 6 The utility model provides a tool fixing device for CNC machining, which includes a tool holder 1.

[0028] Reference Figure 1-Figure 6A tool body 2 is arranged on the inner side of the tool holder 1, and a disassembly structure 3 is arranged on the top of the tool holder 1. The disassembly structure 3 includes a mounting groove 31, a limit plate 32, a guide rod 33, a top limit circular plate 34, a reserved groove 35, a top limit groove 36, a fixing plate 37, a bottom limit circular plate 38 and a bottom limit groove 39. The mounting groove 31 is arranged on both sides of the top of the tool holder 1, and a limit plate 32 is arranged inside the mounting groove 31. Both sides of the limit plate 32 are penetrated by a guide rod 33, and a top limit circular plate 34 is fixed on the top of the guide rod 33. A top limit groove 36 is arranged on the top of the limit plate 32 outside the guide rod 33, and a reserved groove 35 is arranged inside the tool holder 1 above the top limit groove 36. The fixing plate 37 is arranged above the tool body 2 inside the tool holder 1, and bottom limiting grooves 39 are evenly opened at the bottom of the fixing plate 37. Bottom limiting circular plates 38 are arranged inside the bottom limiting grooves 39. The side cross-section of the mounting groove 31 is designed in a "T" shape. The limiting plate 32 and the tool holder 1 form a sliding structure through the mounting groove 31. The bottom end of the guide rod 33 extends to the outside of the fixing plate 37 and is fixedly connected to the top of the bottom limiting circular plate 38. The outer diameter of the top limiting circular plate 34 is smaller than the inner diameter of the reserved groove 35 and the inner diameter of the top limiting groove 36. The central axis of the guide rod 33 and the central axis of the reserved groove 35 are collinear, and the bottom end of the fixing plate 37 and the top of the tool body 2 conflict with each other.

[0029] When in use, the limit plate 32 is inserted into the top of the tool holder 1 through the mounting groove 31. When one end of the limit plate 32 and the inner wall of the tool holder 1 are in contact with each other, the central axis of the guide rod 33 and the reserved groove 35 are collinear. At this time, the guide rod 33 can move up and down through the reserved groove 35. When the guide rod 33 moves up and down, it will drive the fixing plate 37 to move through the bottom limit circular plate 38, which can facilitate the fixation of the tool body 2 at different heights. The limit plate 32 and the tool holder 1 can be slidably connected through the mounting groove 31, which can facilitate installation and disassembly, and can facilitate replacement of the fixing plate 37.

[0030] Reference Figure 2 and Figure 5 A limiting structure 4 is evenly arranged on one side of the top of the knife seat 1. The limiting structure 4 includes a limiting rod 41, a connecting rod 42 and a limiting hole 43. The limiting holes 43 are evenly opened on the top of the knife seat 1. The limiting rods 41 are arranged inside the limiting holes 43, and the tops of the limiting rods 41 are fixed with connecting rods 42.

[0031] After installing the disassembly structure 3, the limit rods 41 are inserted into the limit holes 43 respectively. The bottom ends of the limit rods 41 will extend to the inside of the tool holder 1 along the insertion direction of the limit holes 43, blocking the opening position of the installation groove 31 to prevent the limit plate 32 from slipping, thereby increasing the stability of the tool body 2 during use.

[0032] Reference Figure 1-Figure 3 , Figure 5 and Figure 6 A pressure structure 5 is provided at the middle position of the top of the tool holder 1, and the pressure structure 5 includes a rotating handle 51, a rotating rod 52 and a pressure plate 53. The rotating rod 52 runs through the middle position of the top of the tool holder 1, and the rotating handle 51 is fixed to the top of the rotating rod 52. The bottom end of the rotating rod 52 extends to the outside of the tool holder 1 and is provided with a pressure plate 53. The rotating rod 52 is threadedly connected to the tool holder 1, and the rotating rod 52 and the pressure plate 53 are rotatably connected. The bottom end of the pressure plate 53 and the top end of the fixed plate 37 are in conflict with each other.

[0033] By rotating the handle 51, the handle 51 will drive the rotating rod 52 to rotate, and the rotating rod 52 will drive the pressure plate 53 to move downward when rotating, until the bottom end of the pressure plate 53 and the top end of the fixed plate 37 collide with each other, and the bottom end of the fixed plate 37 and the top end of the tool body 2 collide with each other, so that the tool body 2 can be clamped and fixed.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tool fixing device for CNC machining, comprising a tool holder (1); Features: A tool body (2) is arranged on the inner side of the tool holder (1); The top of the knife seat (1) is provided with a disassembly and assembly structure (3), and the disassembly and assembly structure (3) comprises a mounting groove (31), a limiting plate (32), a guide rod (33), a top limiting circular plate (34), a reserved groove (35), a top limiting groove (36), a fixing plate (37), a bottom limiting circular plate (38) and a bottom limiting groove (39), wherein the mounting groove (31) is provided on both sides of the top of the knife seat (1), and the limiting plates (32) are provided inside the mounting groove (31), and the guide rods (33) are passed through both sides of the limiting plates (32). 33), the top of the guide rod (33) is fixed with a top limiting circular plate (34), the top of the limiting plate (32) outside the guide rod (33) is provided with a top limiting groove (36), the inside of the knife seat (1) above the top limiting groove (36) is provided with a reserved groove (35), the fixing plate (37) is arranged above the knife body (2) inside the knife seat (1), the bottom of the fixing plate (37) is evenly provided with bottom limiting grooves (39), and the inside of the bottom limiting groove (39) is provided with a bottom limiting circular plate (38); A limiting structure (4) is evenly arranged on one side of the top of the knife seat (1), and a pressurizing structure (5) is arranged at the middle position of the top of the knife seat (1).

2. A CNC machining tool fixing device according to claim 1, characterized in that: The side view cross section of the installation groove (31) is designed to be "T"-shaped, and the limiting plate (32) and the knife seat (1) form a sliding structure through the installation groove (31).

3. A CNC machining tool fixing device according to claim 1, characterized in that: The bottom end of the guide rod (33) extends to the outside of the fixed plate (37) and is fixedly connected to the top end of the bottom limiting circular plate (38), and the outer diameter of the top limiting circular plate (34) is smaller than the inner diameter of the reserved groove (35) and the inner diameter of the top limiting groove (36).

4. A CNC machining tool fixing device according to claim 1, characterized in that: The central axis of the guide rod (33) and the central axis of the reserved groove (35) are collinear, and the bottom end of the fixing plate (37) and the top end of the tool body (2) are in contact with each other.

5. The tool fixing device for CNC machining according to claim 1, characterized in that: The limiting structure (4) comprises a limiting rod (41), a connecting rod (42) and a limiting hole (43); the limiting holes (43) are evenly arranged on the top of the knife seat (1); the limiting rod (41) is arranged inside the limiting holes (43); and the connecting rod (42) is fixed to the top of the limiting rod (41).

6. A CNC machining tool fixing device according to claim 1, characterized in that: The pressurizing structure (5) comprises a rotating handle (51), a rotating rod (52) and a pressurizing plate (53); the rotating rod (52) passes through the middle position of the top of the knife seat (1); the rotating handle (51) is fixed to the top of the rotating rod (52); the bottom end of the rotating rod (52) extends to the outside of the knife seat (1) and is provided with a pressurizing plate (53).

7. A CNC machining tool fixing device according to claim 6, characterized in that: The rotating rod (52) is threadedly connected to the knife seat (1), the rotating rod (52) is rotatably connected to the pressure plate (53), and the bottom end of the pressure plate (53) and the top end of the fixed plate (37) are in contact with each other.

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