Numerical control milling machine with cutter protection structure

Abstract

The invention discloses a numerical control milling machine with a cutter protection structure, and relates to the technical field of numerical control milling machines, the numerical control milling machine comprises a base, a machine body stand column and a support are fixedly mounted on the two sides of the top of the base respectively, a mounting base is fixedly mounted on the top of the support, and a Z-direction sliding groove is formed in the outer surface of the machine body stand column; the Z-direction sliding groove is formed in the upper portion of the installation base, X-direction guide rails are fixedly installed on the two sides of the top of the installation base, a horizontal feeding mechanism is installed on the tops of the X-direction guide rails, a Z-direction feeding mechanism is installed on the surface of the lathe bed stand column, a machining mechanism is installed on the Z-direction feeding mechanism, and through a protection assembly in the machining mechanism, the machining precision is improved. The milling cutter is protected when the milling machine stops working, the milling cutter is prevented from being damaged due to accidental collision in a non-working state, the service life of the milling cutter is prolonged, the cutter replacement cost is reduced, meanwhile, machining interruption caused by cutter damage is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled milling machines, in particular to a numerically controlled milling machine with a tool protection structure. Background Art

[0002] In mechanical processing, CNC milling machines are widely used as precision processing equipment. Although traditional CNC milling machines can efficiently process complex parts, there are deficiencies in tool protection. The tools rotate at high speed and cut frequently during processing, and are easily damaged by collision and overload. When the milling machine is not in operation, the tool is exposed, which poses a safety hazard. The milling cutter may be damaged by accidental collision, which extends the service life of the milling cutter. With the improvement of the manufacturing industry's requirements for processing accuracy, efficiency and safety, the development of CNC milling machines with reliable tool protection structures has become an inevitable trend.

[0003] When the CNC milling machine is not working, the tool protection structure prevents other people in the workshop from accidentally touching the tool without knowing it, causing personal injury. On the other hand, it prevents debris from accidentally falling and damaging the tool, or impurities such as dust and cutting fluid from adhering to the tool and affecting tool performance. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A CNC milling machine with a tool protection structure, comprising:

[0005] A base, a bed column and a support are fixedly installed on both sides of the top of the base, a mounting base is fixedly installed on the top of the support, and the support auxiliary supports the mounting base and related components, the mounting base is fixedly installed on the outer surface of the bed column, the outer surface of the bed column is provided with a Z-direction slide groove, and the Z-direction slide groove is arranged above the mounting base, and X-guide rails are fixedly installed on both sides of the top of the mounting base;

[0006] A horizontal feeding mechanism, wherein the horizontal feeding mechanism is installed on the top of the X-guide rail;

[0007] A Z-direction feeding mechanism, the Z-direction feeding mechanism is installed on the surface of the bed column, the Z-direction feeding mechanism includes a Z-direction servo motor and a lifting platform, the Z-direction servo motor is fixedly installed on the top of the bed column through a bracket, a Z-direction screw rod is fixedly installed on the output end of the Z-direction servo motor, a Z-direction threaded hole is opened on the outer surface of the lifting platform, and the threaded protrusion on the surface of the Z-direction screw rod is adapted to the Z-direction threaded hole, and a Z-direction guide rail is fixedly installed on the side of the lifting platform, and the Z-direction guide rail is slidably installed inside the Z-direction slide groove to provide guidance and support for the Z-direction movement of the lifting platform;

[0008] A processing mechanism, wherein the processing mechanism is installed on a lifting platform and is arranged directly above a horizontal feeding mechanism, and a Z-direction feeding mechanism drives the processing mechanism to move in the Z direction to adjust the processing depth;

[0009] Among them, the processing mechanism includes a driving motor and a milling cutter, the driving motor is fixedly installed on the top of the lifting platform, the output end of the driving motor is fixedly connected to a rotating shaft, the rotating shaft passes through the lifting platform and extends to its bottom, a protective component is fixedly installed on the bottom of the rotating shaft, and an installation component is fixedly installed on the top of the milling cutter, the installation component is installed inside the protective component, and circular grooves are provided on both sides of the handle of the milling cutter.

[0010] Preferably, the protection component includes a first mounting sleeve, which is fixedly mounted on the bottom of the rotating shaft, and dovetail grooves are provided on both sides of the inner wall of the first mounting sleeve, and a snap-in groove is provided on the top of the inner wall of the first mounting sleeve. The dovetail grooves facilitate the installation and positioning of the mounting component and limit its radial movement when the milling cutter is working, and the snap-in groove further fixes the mounting component to prevent its axial movement.

[0011] Preferably, a protective cover is fixedly connected to the bottom of the first mounting sleeve, the bottom of the protective cover is slidably connected to the cover sleeve, a magnetic ring is fixedly installed on the top of the outer surface of the first mounting sleeve, and a fixing piece is installed on the top of the outer surface of the cover sleeve.

[0012] Preferably, the fixing member includes a rotating block, which is rotatably installed on the top of the outer surface of the cover sleeve through a rotating shaft, and a first accommodating groove is opened inside the cover sleeve, and a connecting spring is fixedly installed inside the first accommodating groove, and the other end of the connecting spring is fixedly connected to a sliding bar, and the sliding bar is slidably installed in the first accommodating groove, and one end of the connecting spring away from the sliding bar is fixedly installed with a magnetic block, and the magnetic block and the magnetic ring are magnetically adapted, and the sliding bar drives the magnetic block to move under the action of the connecting spring to realize the magnetic attraction or separation of the magnetic block and the magnetic ring. When the milling machine is working, the magnetic block and the magnetic ring are magnetically attracted, so that the cover sleeve is fixed and the milling cutter works normally. When the milling machine stops working, the cover sleeve is slid downward to make the magnetic block away from the magnetic ring, and the cover sleeve falls down to cover the milling cutter to protect the milling cutter.

[0013] Preferably, the mounting assembly includes a second mounting sleeve, wedge blocks are fixedly installed on both sides of the outer surface of the second mounting sleeve, the wedge blocks are slidably installed inside the dovetail groove, and a clamping strip is fixedly installed on the top of the outer surface of the second mounting sleeve, and the clamping strip is clamped and adapted to the clamping groove.

[0014] Preferably, a buffer spring is fixedly installed inside the second mounting sleeve, and a gasket is fixedly connected to the other end of the buffer spring, and the gasket is squeezed and fitted with the end of the milling cutter. Second accommodating grooves are opened on both sides of the inner wall of the second mounting sleeve, and a clamping spring is fixedly installed inside the second accommodating groove, and a clamping block is fixedly connected to the other end of the clamping spring, and the clamping block is clamped and fitted with the circular groove.

[0015] Preferably, the horizontal feeding mechanism includes an X-axis servo motor and an X-axis workbench. The X-axis servo motor is fixedly mounted on the side of the mounting base through a bracket. The output end of the X-axis servo motor is fixedly connected to an X-axis screw rod. An X-axis threaded hole is opened in the middle of the X-axis workbench. The threaded protrusion on the surface of the X-axis screw rod is adapted to the X-axis threaded hole.

[0016] Preferably, an X-axis slide groove is provided at the bottom of the X-axis workbench, and the X-axis workbench is slidably installed on the top of the X-axis guide rail through the X-axis slide groove. Y-axis guide rails are fixedly installed on both sides of the top of the X-axis workbench, and a Y-axis feeding mechanism is installed on the outer surface of the Y-axis guide rail.

[0017] Preferably, the Y-axis feeding mechanism includes a Y-axis servo motor and a placement platform, the Y-axis servo motor is fixedly installed on the side of the X-axis workbench through a bracket, the output end of the Y-axis servo motor is fixedly connected to a Y-axis screw rod, a Y-axis threaded hole is opened in the middle of the placement platform, and the threaded protrusion on the surface of the Y-axis screw rod is adapted to the Y-axis threaded hole.

[0018] Preferably, a Y-direction slide groove is provided at the bottom of the placement platform, and the placement platform is slidably installed on the top of the Y-direction guide rail through the Y-direction slide groove. The Y-direction guide rail cooperates with the Y-direction slide groove at the bottom of the placement platform to provide Y-direction sliding guidance and support for the placement platform in the Y-direction feed mechanism.

[0019] The present invention provides a CNC milling machine with a tool protection structure. The invention has the following beneficial effects:

[0020] 1. The CNC milling machine with a tool protection structure, through the setting of the protection component, when the milling machine is working, the magnetic block in the fixing part is magnetically attracted to the magnetic ring on the top of the outer surface of the first mounting sleeve, so that the cover sleeve is fixed above the bottom of the protective cover without affecting the operation of the milling cutter. After the milling machine stops working, the cover sleeve is slid downward to keep the magnetic block away from the magnetic ring, and the cover sleeve falls to cover the milling cutter, effectively preventing the milling cutter from being damaged due to accidental collision when not working, extending the service life of the milling cutter, reducing the cost of tool replacement, and at the same time reducing processing interruptions caused by tool damage, thereby improving processing efficiency.

[0021] 2. The CNC milling machine with a tool protection structure installs the installation component on the top of the milling cutter into the inside of the protection component through the setting of the installation component, and the wedge blocks on both sides of the outer surface of the second installation sleeve slide into the dovetail grooves on both sides of the inner wall of the first installation sleeve. At the same time, the clamping strip on the top of the outer surface of the second installation sleeve is clamped into the clamping groove on the top of the inner wall of the first installation sleeve. The milling cutter handle is inserted into the second installation sleeve, the clamping spring is compressed, and the clamping block enters the second accommodating groove. When the circular groove moves to the position of the clamping block, the clamping block is clamped into the circular groove, so that the milling cutter is firmly installed, and the buffer spring and gasket play a buffering and protective role for the milling cutter. The installation component realizes the stable installation of the milling cutter. The buffer spring can reduce the vibration and impact caused by the cutting force during the milling process, thereby improving the processing accuracy.

[0022] 3. The CNC milling machine with a tool protection structure, through the setting of the horizontal feeding mechanism, the X-direction servo motor drives the X-direction lead screw to rotate, so that the X-direction worktable moves along the X-direction guide rail, and the Y-direction servo motor drives the Y-direction lead screw to rotate, so that the placement platform moves along the Y-direction guide rail. It can accurately and quickly adjust the position of the workpiece in the X and Y directions on the horizontal plane, facilitate the processing of workpieces with complex shapes, improve processing efficiency and positioning accuracy, and meet diverse processing needs.

[0023] 4. The CNC milling machine with a tool protection structure, through the setting of the Z-axis feed mechanism, the Z-axis servo motor drives the Z-axis lead screw to rotate, the lifting platform makes a linear motion along the Z-axis, and adjusts the height of the processing mechanism. The Z-axis feed mechanism accurately controls the relative position of the milling cutter and the workpiece in the Z-axis direction, which is convenient for controlling the processing depth, meeting the milling processing requirements of different depths, and ensuring the accuracy and stability of the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the appearance of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the Z-direction feeding mechanism of the present invention;

[0027] Figure 4 It is a schematic diagram of the processing mechanism structure of the present invention;

[0028] Figure 5 It is a partial cross-sectional view of the processing mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the milling cutter structure of the present invention;

[0030] Figure 7 It is a partial cross-sectional view of the protection component of the present invention;

[0031] Figure 8It is an enlarged schematic diagram of part A of the present invention;

[0032] Fig. 9 It is a partial cross-sectional view of the installation assembly of the present invention;

[0033] Fig.10 It is a schematic diagram of the structure of the horizontal feeding mechanism of the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of the Y-direction feeding mechanism of the present invention.

[0035] In the figure: 1. Base; 2. Bed column; 3. Mounting base; 4. Support; 5. X-direction guide rail; 6. Horizontal feeding mechanism; 61. X-direction servo motor; 62. X-direction screw rod; 63. X-direction workbench; 64. X-direction threaded hole; 65. X-direction slide; 66. Y-direction guide rail; 68. Y-direction feeding mechanism; 681. Y-direction servo motor; 682. Y-direction screw rod; 683. Placement platform; 684. Y-direction slide; 685. Y-direction threaded hole; 7. Z-direction slide; 8. Z-direction feeding mechanism; 81. Z-direction servo motor; 82. Z-direction screw rod; 83. Lifting platform; 84. Z-direction threaded hole; 85. Z-direction guide rail; 9. Add Working mechanism; 91, driving motor; 92, rotating shaft; 93, protection assembly; 931, first mounting sleeve; 932, dovetail groove; 933, snap-in groove; 934, protective cover; 935, cover sleeve; 936, magnetic ring; 937, fixing piece; 9371, rotating block; 9372, first accommodating groove; 9373, connecting spring; 9374, slide bar; 9375, magnetic block; 94, milling cutter; 95, mounting assembly; 951, second mounting sleeve; 952, buffer spring; 953, wedge block; 954, second accommodating groove; 955, snap-in spring; 956, snap-in block; 957, clamping strip; 958, gasket; 96, circular groove. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The first embodiment, as Figures 1 to 11 As shown, the present invention provides a technical solution: a CNC milling machine with a tool protection structure, comprising:

[0038] Base 1, bed column 2 and support 4 are fixedly installed on both sides of the top of base 1, a mounting base 3 is fixedly installed on the top of support 4, support 4 auxiliary supports mounting base 3 and related components, mounting base 3 is fixedly installed on the outer surface of bed column 2, the outer surface of bed column 2 is provided with Z-direction slide groove 7, Z-direction slide groove 7 is arranged above mounting base 3, and X-guide rails 5 are fixedly installed on both sides of the top of mounting base 3;

[0039] A horizontal feeding mechanism 6 is installed on the top of the X-guide rail 5. The horizontal feeding mechanism 6 includes an X-direction servo motor 61 and an X-direction workbench 63. The X-direction servo motor 61 is fixedly installed on the side of the mounting base 3 through a bracket. An X-direction screw rod 62 is fixedly connected to the output end of the X-direction servo motor 61. An X-direction threaded hole 64 is opened in the middle of the X-direction workbench 63. The threaded protrusion on the surface of the X-direction screw rod 62 is adapted to the X-direction threaded hole 64.

[0040] An X-direction slide groove 65 is provided at the bottom of the X-direction workbench 63, and the X-direction workbench 63 is slidably mounted on the top of the X-direction guide rail 5 through the X-direction slide groove 65. Y-direction guide rails 66 are fixedly mounted on both sides of the top of the X-direction workbench 63, and a Y-direction feeding mechanism 68 is mounted on the outer surface of the Y-direction guide rail 66;

[0041] The Y-direction feeding mechanism 68 includes a Y-direction servo motor 681 and a placement platform 683. The Y-direction servo motor 681 is fixedly mounted on the side of the X-direction workbench 63 through a bracket. The output end of the Y-direction servo motor 681 is fixedly connected to a Y-direction screw rod 682. A Y-direction threaded hole 685 is provided in the middle of the placement platform 683. The threaded protrusion on the surface of the Y-direction screw rod 682 is adapted to the Y-direction threaded hole 685.

[0042] A Y-direction slide groove 684 is provided at the bottom of the placement platform 683, and the placement platform 683 is slidably installed on the top of the Y-direction guide rail 66 through the Y-direction slide groove 684. The Y-direction guide rail 66 cooperates with the Y-direction slide groove 684 at the bottom of the placement platform 683 to provide Y-direction sliding guidance and support for the placement platform 683 in the Y-direction feeding mechanism 68. When the X-direction servo motor 61 is working, the output end of the X-direction servo motor 61 drives the X-direction lead screw 62 to rotate, and the X-direction workbench 63 will make a linear motion along the X-direction guide rail 5 to achieve the position adjustment of the workpiece in the X-axis direction. When the Y-direction servo motor 681 is working, its output end drives the Y-direction lead screw 682 to rotate, so that the placement platform 683 makes a linear motion along the Y-direction guide rail 66 to complete the position adjustment of the workpiece in the Y-axis direction.

[0043] Z-direction feeding mechanism 8 is installed on the surface of the bed column 2. The Z-direction feeding mechanism 8 includes a Z-direction servo motor 81 and a lifting platform 83. The Z-direction servo motor 81 is fixedly installed on the top of the bed column 2 through a bracket. The output end of the Z-direction servo motor 81 is fixedly installed with a Z-direction screw rod 82. The outer surface of the lifting platform 83 is provided with a Z-direction threaded hole 84. The threaded protrusion on the surface of the Z-direction screw rod 82 is matched with the Z-direction threaded hole 84. A Z-direction guide rail 85 is fixedly installed on the side of the lifting platform 83. The Z-direction guide rail 85 is slidably installed inside the Z-direction slide groove 7 to provide guidance and support for the Z-direction movement of the lifting platform 83. When the Z-direction servo motor 81 is working, the Z-direction screw rod 82 at its output end rotates, and the lifting platform 83 will make a linear motion along the Z direction, thereby adjusting the height of the processing mechanism 9 and determining the relative position of the milling cutter 94 and the workpiece in the Z-axis direction.

[0044] The second embodiment is based on the first embodiment. Figures 1 to 9 As shown, the processing mechanism 9 is installed on the lifting platform 83, and the processing mechanism 9 is arranged just above the horizontal feeding mechanism 6. The Z-direction feeding mechanism 8 drives the processing mechanism 9 to move in the Z-direction to adjust the processing depth;

[0045] The processing mechanism 9 includes a driving motor 91 and a milling cutter 94. The driving motor 91 is fixedly mounted on the top of the lifting platform 83. The output end of the driving motor 91 is fixedly connected with a rotating shaft 92. The rotating shaft 92 penetrates the lifting platform 83 and extends to the bottom thereof. A protective component 93 is fixedly mounted on the bottom of the rotating shaft 92. A mounting component 95 is fixedly mounted on the top of the milling cutter 94. The mounting component 95 is mounted inside the protective component 93. Circular grooves 96 are provided on both sides of the shank of the milling cutter 94. When the driving motor 91 is working, the rotating shaft 92 at its output end drives the protective component 93 and the milling cutter 94 mounted therein to rotate at a high speed. At this time, the magnetic block 9375 in the fixing member 937 is magnetically attracted to the magnetic ring 936 on the top of the outer surface of the first mounting sleeve 931, so that the cover sleeve 935 is fixed above the bottom of the protective cover 934, which will not affect the normal operation of the milling cutter 94.

[0046] The protection assembly 93 includes a first mounting sleeve 931, which is fixedly mounted on the bottom of the rotating shaft 92. Dovetail grooves 932 are provided on both sides of the inner wall of the first mounting sleeve 931, and a clamping groove 933 is provided on the top of the inner wall of the first mounting sleeve 931. The dovetail grooves 932 facilitate the installation and positioning of the mounting assembly 95 and limit the radial movement of the milling cutter 94 when it is working. The clamping grooves 933 further fix the mounting assembly 95 to prevent its axial movement.

[0047] The bottom of the first installation sleeve 931 is fixedly connected with a protective cover 934, the bottom of the protective cover 934 is slidably connected with a cover sleeve 935, the top of the outer surface of the first installation sleeve 931 is fixedly installed with a magnetic ring 936, and the top of the outer surface of the cover sleeve 935 is installed with a fixing piece 937;

[0048] The fixing member 937 includes a rotating block 9371, which is rotatably mounted on the top of the outer surface of the cover sleeve 935 through a rotating shaft. The cover sleeve 935 has a first receiving groove 9372 formed inside, and a connecting spring 9373 is fixedly mounted inside the first receiving groove 9372. The other end of the connecting spring 9373 is fixedly connected to a slide bar 9374, which is slidably mounted inside the first receiving groove 9372. The end of the slide bar 9374 away from the connecting spring 9373 is fixedly mounted with a magnetic block 937 5. The magnetic block 9375 is magnetically adapted to the magnetic ring 936. The slide bar 9374 drives the magnetic block 9375 to move under the action of the connecting spring 9373, so as to realize the magnetic attraction or separation of the magnetic block 9375 and the magnetic ring 936. When the milling machine is working, the magnetic block 9375 and the magnetic ring 936 are magnetically attracted to each other, so that the cover sleeve 935 is fixed and the milling cutter 94 works normally. When the milling machine stops working, the cover sleeve 935 is slid downward to make the magnetic block 9375 away from the magnetic ring 936, and the cover sleeve 935 falls to cover the milling cutter 94 to protect the milling cutter 94.

[0049] The mounting assembly 95 includes a second mounting sleeve 951, wedge blocks 953 are fixedly mounted on both sides of the outer surface of the second mounting sleeve 951, the wedge blocks 953 are slidably mounted inside the dovetail groove 932, and a clamping strip 957 is fixedly mounted on the top of the outer surface of the second mounting sleeve 951, and the clamping strip 957 is clamped and adapted with the clamping groove 933;

[0050] A buffer spring 952 is fixedly installed inside the second mounting sleeve 951, and a gasket 958 is fixedly connected to the other end of the buffer spring 952. The gasket 958 is squeezed and fitted with the end of the milling cutter 94. Second accommodating grooves 954 are opened on both sides of the inner wall of the second mounting sleeve 951. A clamping spring 955 is fixedly installed inside the second accommodating groove 954. The other end of the clamping spring 955 is fixedly connected to a clamping block 956. The clamping block 956 is clamped and fitted with the circular groove 96.

[0051] When in use, the worker places the workpiece to be processed on the placement platform 683, and installs the mounting assembly 95 on the top of the milling cutter 94 into the protection assembly 93. During installation, the wedge blocks 953 on both sides of the outer surface of the second mounting sleeve 951 slide along the dovetail grooves 932 on both sides of the inner wall of the first mounting sleeve 931, and at the same time, the clamping strip 957 on the top of the outer surface of the second mounting sleeve 951 is clamped into the clamping groove 933 on the top of the inner wall of the first mounting sleeve 931, completing the initial positioning;

[0052] Insert the handle of the milling cutter 94 into the second mounting sleeve 951, compress the clamping spring 955, and the clamping block 956 enters the second receiving groove 954. When the circular groove 96 moves to the position of the clamping block 956, the clamping block 956 is clamped into the circular groove 96, so that the milling cutter 94 is firmly installed. The buffer spring 952 and the gasket 958 play a buffering and protective role for the milling cutter 94.

[0053] Start the X-direction servo motor 61, and the output end of the X-direction servo motor 61 drives the X-direction screw rod 62 to rotate, so that the X-direction worktable 63 will make a linear motion along the X-direction guide rail 5 to achieve the position adjustment of the workpiece in the X-axis direction. Start the Y-direction servo motor 681, and its output end drives the Y-direction screw rod 682 to rotate, so that the placement platform 683 makes a linear motion along the Y-direction guide rail 66 to complete the position adjustment of the workpiece in the Y-axis direction;

[0054] Start the Z-direction servo motor 81, the Z-direction screw 82 at its output end rotates, and the lifting platform 83 moves linearly along the Z-direction, thereby adjusting the height of the processing mechanism 9 and determining the relative position of the milling cutter 94 and the workpiece in the Z-axis direction;

[0055] The driving motor 91 is turned on, and the rotating shaft 92 at the output end drives the protection assembly 93 and the milling cutter 94 installed therein to rotate at high speed. At this time, the magnetic block 9375 in the fixing member 937 is magnetically attracted to the magnetic ring 936 on the top of the outer surface of the first mounting sleeve 931, so that the cover sleeve 935 is fixed above the bottom of the protection cover 934, which will not affect the normal operation of the milling cutter 94;

[0056] After the processing is completed, the motor is turned off and the cover sleeve 935 is slid downward to make the magnetic block 9375 in the fixing part 937 away from the magnetic ring 936. Under the action of gravity, the cover sleeve 935 falls down to cover the milling cutter 94 to protect the milling cutter 94 and prevent it from being collided and damaged in the non-processing state.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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 statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC milling machine with a tool protection structure, characterized in that: include: A base (1), wherein a bed column (2) and a support (4) are fixedly installed on both sides of the top of the base (1), a mounting base (3) is fixedly installed on the top of the support (4), the mounting base (3) is fixedly installed on the outer surface of the bed column (2), the outer surface of the bed column (2) is provided with a Z-direction slide groove (7), the Z-direction slide groove (7) is arranged above the mounting base (3), and X-direction guide rails (5) are fixedly installed on both sides of the top of the mounting base (3); A horizontal feeding mechanism (6), wherein the horizontal feeding mechanism (6) is installed on the top of the X-guide rail (5); A Z-direction feeding mechanism (8), the Z-direction feeding mechanism (8) is installed on the surface of the bed column (2), the Z-direction feeding mechanism (8) comprises a Z-direction servo motor (81) and a lifting platform (83), the Z-direction servo motor (81) is fixedly installed on the top of the bed column (2) through a bracket, a Z-direction screw rod (82) is fixedly installed on the output end of the Z-direction servo motor (81), a Z-direction threaded hole (84) is opened on the outer surface of the lifting platform (83), the threaded protrusion on the surface of the Z-direction screw rod (82) is matched with the Z-direction threaded hole (84), a Z-direction guide rail (85) is fixedly installed on the side of the lifting platform (83), and the Z-direction guide rail (85) is slidably installed inside the Z-direction slide groove (7); A processing mechanism (9), wherein the processing mechanism (9) is installed on a lifting platform (83), and the processing mechanism (9) is arranged directly above the horizontal feeding mechanism (6); The processing mechanism (9) comprises a driving motor (91) and a milling cutter (94), wherein the driving motor (91) is fixedly mounted on the top of a lifting platform (83), the output end of the driving motor (91) is fixedly connected to a rotating shaft (92), the rotating shaft (92) passes through the lifting platform (83) and extends to the bottom thereof, a protection component (93) is fixedly mounted on the bottom of the rotating shaft (92), a mounting component (95) is fixedly mounted on the top of the milling cutter (94), the mounting component (95) is mounted inside the protection component (93), and circular grooves (96) are provided on both sides of the handle of the milling cutter (94).

2. A CNC milling machine with a tool protection structure according to claim 1, characterized in that: The protection component (93) comprises a first mounting sleeve (931), wherein the first mounting sleeve (931) is fixedly mounted on the bottom of the rotating shaft (92), dovetail grooves (932) are provided on both sides of the inner wall of the first mounting sleeve (931), and a clamping groove (933) is provided on the top of the inner wall of the first mounting sleeve (931).

3. A CNC milling machine with a tool protection structure according to claim 2, characterized in that: The bottom of the first installation sleeve (931) is fixedly connected to a protective cover (934), the bottom of the protective cover (934) is slidably connected to a cover sleeve (935), the top of the outer surface of the first installation sleeve (931) is fixedly installed with a magnetic ring (936), and the top of the outer surface of the cover sleeve (935) is installed with a fixing part (937).

4. A CNC milling machine with a tool protection structure according to claim 3, characterized in that: The fixing member (937) includes a rotating block (9371), and the rotating block (9371) is rotatably mounted on the top of the outer surface of the cover sleeve (935) through a rotating shaft. A first accommodating groove (9372) is opened inside the cover sleeve (935), and a connecting spring (9373) is fixedly mounted inside the first accommodating groove (9372). The other end of the connecting spring (9373) is fixedly connected to a sliding bar (9374), and the sliding bar (9374) is slidably mounted inside the first accommodating groove (9372). A magnetic block (9375) is fixedly mounted on one end of the sliding bar (9374) away from the connecting spring (9373), and the magnetic block (9375) is magnetically adapted to the magnetic ring (936).

5. A CNC milling machine with a tool protection structure according to claim 4, characterized in that: The mounting assembly (95) comprises a second mounting sleeve (951), wedge blocks (953) are fixedly mounted on both sides of the outer surface of the second mounting sleeve (951), the wedge blocks (953) are slidably mounted inside the dovetail groove (932), and a clamping strip (957) is fixedly mounted on the top of the outer surface of the second mounting sleeve (951), and the clamping strip (957) is clamped and adapted to the clamping groove (933).

6. The CNC milling machine with a tool protection structure according to claim 5, characterized in that: A buffer spring (952) is fixedly installed inside the second mounting sleeve (951), and the other end of the buffer spring (952) is fixedly connected to a gasket (958), and the gasket (958) is squeezed and matched with the end of the milling cutter (94). Second accommodating grooves (954) are opened on both sides of the inner wall of the second mounting sleeve (951), and a clamping spring (955) is fixedly installed inside the second accommodating groove (954), and the other end of the clamping spring (955) is fixedly connected to a clamping block (956), and the clamping block (956) is clamped and matched with the circular groove (96).

7. The CNC milling machine with a tool protection structure according to claim 1, characterized in that: The horizontal feeding mechanism (6) comprises an X-direction servo motor (61) and an X-direction workbench (63); the X-direction servo motor (61) is fixedly mounted on the side of the mounting base (3) via a bracket; an output end of the X-direction servo motor (61) is fixedly connected to an X-direction screw rod (62); an X-direction threaded hole (64) is provided in the middle of the X-direction workbench (63); a threaded protrusion on the surface of the X-direction screw rod (62) is adapted to fit the X-direction threaded hole (64).

8. The CNC milling machine with a tool protection structure according to claim 7, characterized in that: An X-direction slide groove (65) is provided at the bottom of the X-direction workbench (63), and the X-direction workbench (63) is slidably mounted on the top of the X-direction guide rail (5) through the X-direction slide groove (65). Y-direction guide rails (66) are fixedly mounted on both sides of the top of the X-direction workbench (63), and a Y-direction feeding mechanism (68) is installed on the outer surface of the Y-direction guide rail (66).

9. The CNC milling machine with a tool protection structure according to claim 8, characterized in that: The Y-direction feeding mechanism (68) comprises a Y-direction servo motor (681) and a placement platform (683); the Y-direction servo motor (681) is fixedly mounted on the side of the X-direction workbench (63) via a bracket; the output end of the Y-direction servo motor (681) is fixedly connected to a Y-direction screw rod (682); a Y-direction threaded hole (685) is provided in the middle of the placement platform (683); a threaded protrusion on the surface of the Y-direction screw rod (682) is adapted to fit the Y-direction threaded hole (685).

10. The CNC milling machine with a tool protection structure according to claim 9, characterized in that: A Y-direction sliding groove (684) is provided at the bottom of the placement platform (683), and the placement platform (683) is slidably mounted on the top of the Y-direction guide rail (66) through the Y-direction sliding groove (684).

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