Numerical control machine tool with automatic tool changing function

Abstract

The invention discloses a numerical control machine tool with an automatic tool changing function, and relates to the technical field of automatic tool changing of numerical control machine tools. A tool storage assembly is arranged on a circle and used for storing tools, and a mounting assembly is arranged in a machine tool tool arm shell; the mounting assembly is arranged in the tool storage assembly and used for mounting tools in the tool storage assembly on a machine tool tool arm shell for use, the deflection assembly is arranged in the machine tool tool arm shell and used for enabling the tool storage assembly to deflect, and the pressing assembly is arranged in the machine tool tool arm shell and used for driving the mounting assembly to move downwards. The push-out assembly is arranged in the machine tool cutter arm shell and used for pushing out the connecting plate provided with the cutter, the cutter is horizontally placed so that space can be saved, the working efficiency can be improved, cutter replacement is accelerated through a quick connection interface, the cost is reduced by rotating a right-angle frame, and installation is optimized. And the machining space and the machining capacity of the machine tool are expanded through the connecting plate capable of being pushed out.

Description

Technical Field

[0001] The invention relates to the technical field of automatic tool changing for numerically controlled machine tools, in particular to an automatic tool changing numerically controlled machine tool. Background Art

[0002] With the rapid development of modern processing technology, CNC machine tools, as core equipment, have become the focus of research on improving their performance and efficiency. In CNC machine tools, the tool magazine is an important component for storing and replacing tools. Its structural design and functional realization are directly related to the processing capacity and operating efficiency of the machine tool. As an important tool storage device, the disc track tool magazine is widely used in CNC machine tools, machining centers and other automation equipment. The disc track tool magazine has the advantages of large storage capacity, fast tool change speed, and high degree of automation, which can greatly improve processing efficiency and quality.

[0003] When using machine tools to process more complex parts, different tools need to be replaced. There are two ways to replace tools nowadays. One is machine replacement, which has the advantages of being fast and accurate, but because the tool changing machine uses a large number of servo motors to manufacture, the price is very expensive, so it is not the main way to change tools. The second is manual replacement. Manual replacement has low cost in the production process, but has low efficiency, which will greatly increase the non-processing time of the machine tool, thereby reducing the production efficiency of the machine tool;

[0004] Therefore, a machine with low cost and high tool changing efficiency is proposed to assist machine tools in processing complex parts. Summary of the invention

[0005] The purpose of the present invention is to provide a CNC machine tool with automatic tool change, which solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a CNC machine tool with automatic tool change, comprising a machine tool tool arm housing, a surface of the machine tool tool arm housing is fixedly connected to a belt transmission frame, a belt surface at the upper end of the belt transmission frame is transmission-connected to a rotating ring, a fixed plate 1 is fixedly connected to the inner wall of the rotating ring, an end surface of the fixed plate 1 away from one end of the rotating ring is provided with a through notch, a groove wall of the notch is fixedly connected to a circle, and the CNC machine tool comprises:

[0007] A tool storage assembly, the tool storage assembly is arranged on the circle, and the tool storage assembly is used to store tools;

[0008] An installation assembly, the installation assembly is arranged in the housing of the machine tool tool arm, and is used to install the tool in the tool storage assembly on the housing of the machine tool tool arm for use;

[0009] A deflection assembly, the deflection assembly being disposed in the housing of the machine tool tool arm and used to deflect the tool storage assembly, thereby facilitating taking out the tool in the tool storage assembly;

[0010] A pressing assembly, the pressing assembly being disposed in the housing of the machine tool tool arm and being used to drive the installation assembly to move downward, thereby installing the tool in the tool storage assembly;

[0011] The ejection assembly and the connecting plate, wherein the ejection assembly is arranged in the housing of the machine tool tool arm, and the ejection assembly is used to push out the connecting plate with the tool installed so as to carry out machine tool processing on the parts.

[0012] Optionally, the tool storage assembly includes:

[0013] A right-angle frame, one end face of the right-angle frame is provided with a penetrating notch, the groove wall of the notch is rotatably connected to the surface of the circle, the end face of the right-angle frame connected to the circle is fixedly connected with a spring disk, and the other end of the spring disk is fixedly connected to the surface of the circle, and the surface of the right-angle frame away from the end of the circle is provided with a U-shaped groove, the groove wall of the U-shaped groove is slidably connected with a clamping block, the inner wall of the clamping block is clamped with a column one, the end face of the column one is fixedly connected with a processing tool, and the outer surface of the clamping block is fixedly connected with a sliding column one, the surface of the sliding column one slides through the groove wall of the U-shaped groove, the outer surface of the sliding column one is fixedly connected to a limiting plate, the end face of the limiting plate is fixedly connected with a spring one, and the other end of the spring one is fixedly connected to the outer surface of the right-angle frame.

[0014] Optionally, the installation component includes:

[0015] A clamping frame 1, the end surface of which is fixedly connected to the end surface of the column 1, and a clamping block is fixedly connected to the end surface of the clamping frame 1 away from the column 1.

[0016] Optionally, the installation component further includes:

[0017] A connecting block one, the upper end face of the connecting block one is fixedly connected to the lower end face of the connecting plate, the lower end face of the connecting block one is fixedly connected to a mounting ring, the inner wall of the mounting ring close to one end of the connecting block one is provided with a cavity groove, the inner wall of the cavity groove is fixedly connected with a spring two, the end of the spring two away from the cavity groove is fixedly connected with a snap-in ball, the inner wall of the mounting ring away from one end of the connecting block one is also provided with a snap-in groove, and the upper end face of the connecting plate is slidably connected to the inner upper surface of the machine tool tool arm housing.

[0018] Optionally, the deflection assembly comprises:

[0019] A fixing rod 1, the lower end face of which is fixedly connected to the inner lower end face of the machine tool tool arm housing, the upper end face of which is fixedly connected to a placement plate, the upper end face of which is provided with a motor 1, the output end of the motor 1 is fixedly connected to a rotating rod 1, the end of the rotating rod 1 away from the motor 1 is fixedly connected to a cam, the end face of the cam facing away from the motor 1 is fixedly connected to a sliding column 2, and the end face of the cam facing away from the motor 1 is also fixedly connected to an arc-shaped piece.

[0020] Optionally, the deflection assembly further includes:

[0021] A spur gear row one, the tooth surface of which is meshingly connected with a gear ring one, the end face of which is fixedly connected to the inner wall of the right-angle frame, an arc groove is provided on the back tooth surface of the spur gear row one, and a strip groove is also provided on the back tooth surface of the spur gear row one, the outer surface of the arc piece is slidably connected to the groove wall of the arc groove, the second surface of the sliding column is slidably connected to the groove wall of the strip groove, the lower end face of the spur gear row one is fixedly connected to a sliding rod one, the surface of the sliding rod one is slidably connected to a fixed cylinder, and the lower end face of the fixed cylinder is fixedly connected to the inner lower end face of the machine tool tool arm housing.

[0022] Optionally, the pressing component includes:

[0023] Gear ring two, the inner wall of the gear ring two is fixedly connected to the surface of the rotating rod one, the tooth surface of the gear ring two is meshingly connected with a straight tooth row two, the upper end surface of the straight tooth row two is fixedly connected with a limiting plate, the lower end surface of the connecting plate is fixedly connected with a connecting frame one, the end surface of the connecting frame one is provided with a sliding groove, the groove wall of the sliding groove is slidably connected to the surface of the straight tooth row two, the end surface of the connecting frame one is also provided with a transverse groove, the groove wall of the transverse groove is slidably connected to the surface of the limiting plate.

[0024] Optionally, the ejection component includes:

[0025] A sliding block 1, wherein the surface of the sliding block 1 is fixedly connected to the surface of the connecting frame 1, and the surface of the sliding block 1 is also slidably connected to the limiting frame 1, and a notch is provided on the inner lower surface of the machine tool tool arm housing, and the groove wall of the notch is slidably connected to the lower end surface of the limiting frame 1;

[0026] A sliding frame, wherein the outer surface of the sliding frame is fixedly connected to the outer surface of the sliding block 1, the inner wall of the sliding frame is slidably connected to a sliding column 3, the end surface of the sliding column 3 is fixedly connected to a bent rod 1, the central end of the bent rod 1 is provided with a through slot, the slot wall of the slot is hinged with a fixed plate 2, and the lower end surface of the fixed plate 2 is fixedly connected to the inner lower surface of the machine tool tool arm housing;

[0027] The pressing plate, the upper end surface of the pressing plate is fixedly connected to the lower end surface of the straight tooth row two, the end of the curved rod one away from the sliding column three is also rotatably connected to a mounting plate, the end surface of the mounting plate is fixedly connected to a spring three, the other end of the spring three is fixedly connected to a sliding plate, the surface of the sliding plate is slidably connected to the surface of the fixed plate two, the end surface of the sliding plate is fixedly connected to a sliding column four, and the end surface of the sliding column four away from one end of the sliding plate slides through the end surface of the mounting plate.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the present invention, when placing the tool, the U-shaped groove of the right-angle frame is oriented toward the center of the circle under the action of the spring disk, which makes the tool be placed horizontally. Compared with the traditional centripetal placement method, this horizontal placement method can not only save placement space, but also make installation more convenient. At the same time, it also makes it easier for the staff to observe the status of the tool, so as to replace the tool with greater wear, and the installation method is simple, which is more convenient for the staff to operate.

[0030] Second, the present invention makes it faster to replace the tool through the design of the quick-connect interface, further improving the efficiency of tool replacement, thereby indirectly reducing the non-processing time of the machine tool and improving the processing efficiency of the machine tool.

[0031] 3. The present invention drives the gear ring to rotate 90 degrees when changing the tool, thereby driving the right-angle frame to rotate 90 degrees, so that the tool is placed vertically. Therefore, when the tool is placed horizontally, there is no need for a separate machine to place the tool vertically, thereby reducing manufacturing costs. When the arc piece contacts the groove wall of the arc groove, it can also prevent the straight tooth row from falling, thereby making it more convenient to install the tool later. The invention is linked with the deflection assembly, so that when the arc piece contacts the groove wall of the arc groove, the mounting ring continues to move downward to complete the installation, thereby making the installation process more compact. In addition, this installation method only uses one motor, which can further reduce the difficulty of programming the servo motor for the operator, thereby making the machine tool more practical.

[0032] Fourth, the present invention pushes out the connecting plate with the installed tool, thereby providing a larger space for processing parts, thereby increasing the size range of parts that can be processed by this machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front view of the structure of the present invention;

[0034] Figure 2 A top view of the structure of the present invention;

[0035] Figure 3 For the present invention Figure 2 A magnified view of the structure at inner A;

[0036] Figure 4 It is a cross-sectional view of the internal structure of the mounting ring in the present invention;

[0037] Figure 5 For the present invention Figure 4 A magnified view of the structure at inner B;

[0038] Figure 6 For the present invention Figure 4 A magnified view of the structure at inner C;

[0039] Figure 7 It is a front view of the internal structure of the present invention;

[0040] Figure 8 It is a side view of the internal structure of the present invention;

[0041] Fig. 9 It is a front view of a position structure of a spur gear row in the present invention;

[0042] Fig.10 For the present invention Fig. 9 A magnified view of the structure at inner D;

[0043] Fig.11 For the present invention Fig. 9 Enlarged view of the structure at inner E.

[0044] In the figure: 1. Machine tool tool arm housing; 2. Belt drive frame; 3. Rotating ring; 4. Connecting block 1; 5. Connecting plate; 6. Circle; 7. Spring plate; 8. Gear ring 1; 9. Processing tool; 10. Fixed plate 1; 11. Right angle frame; 12. Sliding column 1; 13. Limiting plate; 14. Spring 1; 15. Clamping block; 16. Snap-on frame 1; 17. Column 1; 18. Cavity groove; 19. Spring 2; 20. Snap-on ball; 21. Mounting ring; 22. Snap-on groove; 23. Snap-on block; 24. Snap-on frame 1; 25. Sliding block 1; 26. Connecting frame 1; 27. Arc sheet; 28. Sliding frame; 29. ​​Sliding column 3; 30. Bending rod 1; 31. Fixing plate 2; 32. Mounting plate; 33. Fixing rod 1; 34. Pressing plate; 35. Placing plate; 36. Motor 1; 37. Straight tooth row 2; 38. Straight tooth row 1; 39. Sliding rod 1; 40. Fixing cylinder; 41. Sliding column 4; 42. Sliding plate; 43. Spring 3; 44. Rotating rod 1; 45. Gear ring 2; 46. Arc groove; 47. Strip groove; 48. Sliding column 2; 49. Cam. DETAILED DESCRIPTION

[0045] 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.

[0046] For example, see Figures 1 to 11 The present embodiment provides a CNC machine tool with automatic tool changing, including a machine tool tool arm housing 1, a belt transmission frame 2 is fixedly connected to the surface of the machine tool tool arm housing 1, a belt surface at the upper end of the belt transmission frame 2 is transmission-connected to a rotating ring 3, a fixed plate 10 is fixedly connected to the inner wall of the rotating ring 3, a through slot is provided on the end face of the fixed plate 10 away from one end of the rotating ring 3, and a circle 6 is fixedly connected to the slot wall.

[0047] The CNC machine tool includes a tool storage assembly, which is arranged on the circle 6 and includes:

[0048] A right angle frame 11, one end face of the right angle frame 11 is provided with a through slot, the slot wall of the slot is rotatably connected to the surface of the circle 6, the end face of the right angle frame 11 connected to the circle 6 is fixedly connected with a spring disk 7, the other end of the spring disk 7 is fixedly connected to the surface of the circle 6, a U-shaped slot is provided on the surface of the end of the right angle frame 11 away from the circle 6, a clamping block 15 is slidably connected to the slot wall of the U-shaped slot, the inner wall of the clamping block 15 is clamped with a column 17, the end face of the column 17 is fixedly connected with a processing tool 9, and the outer surface of the clamping block 15 is fixedly connected with a sliding column 12, the surface of the sliding column 12 slides through the slot wall of the U-shaped slot, the outer surface of the sliding column 12 is fixedly connected with a limiting disk 13, the end face of the limiting disk 13 is fixedly connected with a spring 14, the other end of the spring 14 is fixedly connected to the outer surface of the right angle frame 11

[0049] In this embodiment, firstly, a sufficient amount of cutting tools are placed on the right-angle frame 11. When placing the cutting tools, the U-shaped groove of the right-angle frame 11 is oriented toward the center of the circle under the action of the spring disk 7. This will make the cutting tools be placed horizontally when placed. Compared with the traditional centripetal placement method, this horizontal placement method can not only save placement space, but also make installation more convenient. At the same time, it also makes it easier for the staff to observe the status of the cutting tools, so as to replace the cutting tools with greater wear, place the cutting tools in the U-shaped groove, and then press the cutting tools to make the column 17 move toward the inside of the U-shaped groove, thereby squeezing the clamping block 15 to move, further driving the sliding column 12 to slide, pulling the spring 14, so that the spring 14 has elastic deformation to generate pressure, and then driving the two clamping blocks 15 to squeeze each other, clamping the column 17 in the U-shaped groove, so as to realize the storage of cutting tools;

[0050] The arrangement of the tool storage assembly is such that when placing the tool, the U-shaped groove of the right-angle frame 11 is oriented toward the center of the circle under the action of the spring disk 7, so that when the tool is placed, the tool is placed horizontally. Compared with the traditional centripetal placement method, this horizontal placement method not only saves placement space, but also makes installation more convenient, and also allows the staff to more easily observe the status of the tool, thereby replacing the tool with greater wear, and the installation method is simple, which is more convenient for the staff to operate.

[0051] It is worth noting that, in this embodiment, the CNC machine tool further includes a mounting assembly, which is disposed in the machine tool tool arm housing 1 and includes:

[0052] A clamping frame 16, the end surface of the clamping frame 16 is fixedly connected to the end surface of the column 17, and the end surface of the clamping frame 16 away from the column 17 is fixedly connected with a clamping block 23;

[0053] A connecting block 4, the upper end surface of the connecting block 4 is fixedly connected to the lower end surface of the connecting plate 5, the lower end surface of the connecting block 4 is fixedly connected with a mounting ring 21, the inner wall of the mounting ring 21 close to one end of the connecting block 4 is provided with a cavity groove 18, the inner wall of the cavity groove 18 is fixedly connected with a spring 2 19, the end of the spring 2 19 away from the cavity groove 18 is fixedly connected with a snap-in ball 20, the inner wall of the mounting ring 21 away from the end of the connecting block 4 is also provided with a snap-in groove 22, and the upper end surface of the connecting plate 5 is slidably connected to the inner upper surface of the machine tool tool arm housing 1.

[0054] In this embodiment, the installation ring 21 will further contact the clamping block 23 during the downward movement of the connecting plate 5. When contacting the clamping block 23, due to the setting of the arc surface at the edge of the clamping block 23, the clamping ball 20 is pressed during the movement, thereby squeezing the spring 2 19. Then, when the clamping ball 20 moves between the clamping block 23 and the clamping frame 1 16, the spring 2 19 releases its elastic force, clamping the clamping ball 20 between the clamping block 23 and the clamping frame 1 16, so as to complete the installation of the processing tool 9 by the installation ring 21.

[0055] The setting of this installation component, through the design of the quick-connect interface, makes it faster to change the tool, further improves the efficiency of tool change, thereby indirectly reducing the non-processing time of the machine tool and improving the processing efficiency of the machine tool.

[0056] Embodiment 2, based on the above embodiment:

[0057] See also Figure 2 , Figure 3 , Fig. 9 and Fig.10In this embodiment, the CNC machine tool includes a deflection assembly, which is arranged in a machine tool tool arm housing 1, and the deflection assembly includes:

[0058] A fixing rod 33, the lower end surface of the fixing rod 33 is fixedly connected to the lower end surface of the inner part of the machine tool tool arm housing 1, the upper end surface of the fixing rod 33 is fixedly connected to a placement plate 35, the upper end surface of the placement plate 35 is provided with a motor 36, the output end of the motor 36 is fixedly connected to a rotating rod 44, the end of the rotating rod 44 away from the motor 36 is fixedly connected to a cam 49, the end surface of the cam 49 away from the motor 36 is fixedly connected to a sliding column 248, and the end surface of the cam 49 away from the motor 36 is also fixedly connected to an arc-shaped piece 27;

[0059] A spur gear row 38 is provided, and the tooth surface of the spur gear row 38 is meshedly connected with a gear ring 8, the end surface of the gear ring 8 is fixedly connected to the inner wall of the right-angle frame 11, the back tooth surface of the spur gear row 38 is provided with an arc groove 46, and the back tooth surface of the spur gear row 38 is also provided with a strip groove 47, the outer surface of the arc piece 27 is slidably connected to the groove wall of the arc groove 46, the surface of the sliding column 28 is slidably connected to the groove wall of the strip groove 47, the lower end surface of the spur gear row 38 is fixedly connected with a sliding rod 39, the surface of the sliding rod 39 is slidably connected with a fixed cylinder 40, and the lower end surface of the fixed cylinder 40 is fixedly connected to the inner lower end surface of the machine tool tool arm housing 1.

[0060] In this embodiment, the motor 1 36 is started to drive the rotating rod 1 44 to rotate, and the rotation of the rotating rod 1 44 drives the cam 49 to rotate around the rotating rod 1 44, and further drives the arc piece 27 and the sliding column 2 48 to rotate, so that the straight tooth row 1 38 has the following two motion states:

[0061] First, when the sliding column 48 slides in the strip groove 47, the cam 49 rotates, which further lifts the straight tooth row 38 to move upward, and then drives the gear ring 8 to rotate through the upward movement of the straight tooth row 38, thereby driving the right-angle frame 11 to rotate, and the distance that the sliding column 48 drives the straight tooth row 38 to move upward is just enough to drive the gear ring 8 to rotate 90 degrees, so that the tool is placed vertically;

[0062] Second, when the second sliding post 48 slides in the strip groove 47 until it is about to leave the strip groove 47, the outer surface of the arc-shaped piece 27 will contact the groove wall of the arc-shaped groove 46, thereby preventing the straight tooth row 1 38 from falling, so that the tool remains in a vertical position;

[0063] The setting of the deflection assembly drives the gear ring 8 to rotate ninety degrees when changing the tool, thereby driving the right-angle frame 11 to rotate ninety degrees, so that the tool is placed vertically. Therefore, when the tool is placed horizontally, there is no need for a separate machine to place the tool vertically, thereby reducing manufacturing costs, and when the arc piece 27 contacts the groove wall of the arc groove 46, it can also prevent the straight tooth row 38 from falling, thereby making it more convenient to install the tool later.

[0064] Embodiment 3, based on the above embodiment:

[0065] See also Figure 7 , Figure 8 , Fig. 9 and Fig.10 In this embodiment, the CNC machine tool further includes a pressing component, which is arranged in the machine tool tool arm housing 1, and the pressing component includes:

[0066] Gear ring 2 45, the inner wall of gear ring 2 45 is fixedly connected to the surface of rotating rod 1 44, the tooth surface of gear ring 2 45 is meshingly connected with spur gear row 2 37, the upper end surface of spur gear row 2 37 is fixedly connected to the limiting plate, the lower end surface of connecting plate 5 is fixedly connected to connecting frame 1 26, the end surface of connecting frame 1 26 is provided with a sliding groove, the groove wall of the sliding groove is slidably connected to the surface of spur gear row 2 37, the end surface of connecting frame 1 26 is also provided with a transverse groove, the groove wall of the transverse groove is slidably connected to the surface of the limiting plate.

[0067] In this embodiment, the motor 1 36 drives the rotating rod 1 44 to rotate, thereby driving the gear ring 2 45 to rotate, and further driving the straight gear row 2 37 to move downward, thereby dragging the connecting plate 5 to drive the mounting ring 21 to move downward, so as to complete the docking work of the mounting assembly;

[0068] The setting of the pressing assembly, through the rotation of the rotating rod 44, further drives the connecting plate 5 to drive the mounting ring 21 to move downward to complete the docking work of the mounting assembly, and is linked with the deflection assembly, so that when the arc piece 27 contacts the groove wall of the arc groove 46, the mounting ring 21 continues to move downward to complete the installation, thereby making the installation process more compact, and this installation method only uses one motor, which can further reduce the difficulty of the operator in programming the servo motor, thereby making the machine tool more practical.

[0069] Embodiment 4, based on the above embodiment:

[0070] See also Figure 7 , Figure 8 , Fig. 9 and Fig.11 In this embodiment, the CNC machine tool further includes an ejection assembly and a connecting plate 5. The ejection assembly is arranged in the machine tool tool arm housing 1. The ejection assembly includes:

[0071] A sliding block 25, the surface of which is fixedly connected to the surface of a connecting frame 26, and the surface of which is also slidably connected to a limiting frame 24, a notch is provided on the inner lower surface of the machine tool tool arm housing 1, and a groove wall of the notch is slidably connected to the lower end surface of the limiting frame 24;

[0072] A sliding frame 28, the outer surface of the sliding frame 28 is fixedly connected to the outer surface of the sliding block 1 25, the inner wall of the sliding frame 28 is slidably connected to a sliding column 3 29, the end surface of the sliding column 3 29 is fixedly connected to a bent rod 1 30, the central end of the bent rod 1 30 is provided with a through slot, the slot wall of the slot is hinged with a fixed plate 2 31, the lower end surface of the fixed plate 2 31 is fixedly connected to the inner lower surface of the machine tool tool arm housing 1;

[0073] Pressing plate 34, the upper end surface of pressing plate 34 is fixedly connected to the lower end surface of straight tooth row 2 37, the end of curved rod 1 30 away from the end of sliding column 3 29 is also rotatably connected to mounting plate 32, the end surface of mounting plate 32 is fixedly connected to spring 3 43, the other end of spring 3 43 is fixedly connected to sliding plate 42, the surface of sliding plate 42 is slidably connected to the surface of fixing plate 2 31, the end surface of sliding plate 42 is fixedly connected to sliding column 41, the end surface of sliding column 41 away from the end of sliding plate 42 slides through the end surface of mounting plate 32.

[0074] In this embodiment, when the straight tooth row 2 37 moves downward, the pressing plate 34 is further driven to move downward until the pressing plate 34 contacts the surface of the curved rod 1 30, so that the curved rod 1 30 deflects with the fixed plate 2 31 as the axis, and further drives the sliding column 3 29 to slide in the sliding frame 28, so as to push out the connecting plate 5 with the tool installed, so as to provide a larger space for the processing of parts, thereby increasing the size range of the parts that can be processed by the machine tool;

[0075] The arrangement of the push-out assembly pushes out the connecting plate 5 on which the tool is installed, thereby providing a larger space for processing parts, thereby increasing the size range of parts that can be processed by the machine tool.

[0076] Working principle: When using this automatic tool changing CNC machine tool, the following steps are performed:

[0077] S1: Place enough tools on the right angle frame 11, then start the machine tool and write a program;

[0078] S2: When changing the blade, the belt drive frame 2 drives the rotating ring 3 to rotate, thereby rotating the blade to be replaced to the bottom, and then starting the motor 36 to drive the rotating rod 44 to rotate, thereby driving the gear ring 8 to rotate 90 degrees, so that the blade is placed vertically;

[0079] S3: At the same time, the rotation of the rotating rod 44 will also drive the straight tooth row 2 37 to move downward, so that the connecting plate 5 drives the mounting ring 21 to move downward. When the gear ring 8 rotates 90 degrees, so that the tool is placed vertically, the rotating rod 44 will no longer drive the gear ring 8 to rotate, and the mounting ring 21 continues to move downward to complete the installation.

[0080] S4: After the installation is completed, the straight tooth row 2 37 moving downward will drive the pressing plate 34 to contact one end of the curved rod 1 30, and then continue to move downward, driving the curved rod 1 30 to deflect, and then push out the connecting plate 5 with the tool installed, providing more space for the processing of parts;

[0081] S5: Finally, when the knife is retracted, the motor is turned over, so that the knife is restored, and then the belt drive frame 2 drives the rotating ring 3 to rotate, and the above steps are repeated.

[0082] 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 machine tool with automatic tool change, comprising a machine tool tool arm housing (1), characterized in that: The surface of the machine tool tool arm housing (1) is fixedly connected to a belt transmission frame (2), the belt surface at the upper end of the belt transmission frame (2) is drivingly connected to a rotating ring (3), the inner wall of the rotating ring (3) is fixedly connected to a fixed plate (10), the end surface of the fixed plate (10) away from one end of the rotating ring (3) is provided with a through slot, the slot wall of the slot is fixedly connected to a circle (6), and the CNC machine tool comprises: A tool storage assembly, wherein the tool storage assembly is arranged on the circle (6); An installation assembly, the installation assembly being arranged in a machine tool tool arm housing (1) and being used for installing a tool in the tool storage assembly; A deflection assembly, the deflection assembly being arranged in a machine tool tool arm housing (1) and being used to deflect the tool storage assembly so as to take out the tool in the tool storage assembly; A pressing assembly, the pressing assembly being arranged in a machine tool tool arm housing (1) and being used to drive the installation assembly to move downwards so as to install a tool in the tool storage assembly; An ejection assembly and a connecting plate (5), wherein the ejection assembly is arranged in a machine tool tool arm housing (1) and is used to eject the connecting plate (5) with the tool installed thereon so as to perform machine tool processing.

2. The automatic tool-changing CNC machine tool according to claim 1, characterized in that: The tool storage assembly comprises: A right angle frame (11), one end surface of the right angle frame (11) is provided with a through notch, the groove wall of the notch is rotatably connected to the surface of the circle (6), the end surface of the right angle frame (11) connected to the circle (6) is fixedly connected with a spring disk (7), the other end of the spring disk (7) is fixedly connected to the surface of the circle (6), a U-shaped groove is provided on the surface of the right angle frame (11) away from the circle (6), the groove wall of the U-shaped groove is slidably connected with a clamping block (15), the clamping block (15 ) is clamped with a column (17) on its inner wall, the end face of the column (17) is fixedly connected with a processing tool (9), and the outer surface of the clamping block (15) is fixedly connected with a sliding column (12), the surface of the sliding column (12) slides through the groove wall of the U-shaped groove, the outer surface of the sliding column (12) is fixedly connected with a limiting plate (13), the end face of the limiting plate (13) is fixedly connected with a spring (14), and the other end of the spring (14) is fixedly connected to the outer surface of the right-angle frame (11).

3. The automatic tool-changing CNC machine tool according to claim 2, characterized in that: The installation assembly includes: A clamping frame (16), the end surface of which is fixedly connected to the end surface of the column (17), and a clamping block (23) is fixedly connected to the end surface of the clamping frame (16) away from the column (17).

4. The automatic tool-changing CNC machine tool according to claim 3, characterized in that: The installation assembly also includes: A connecting block (4), the upper end surface of the connecting block (4) is fixedly connected to the lower end surface of the connecting plate (5), the lower end surface of the connecting block (4) is fixedly connected to a mounting ring (21), the inner wall of the mounting ring (21) close to one end of the connecting block (4) is provided with a cavity groove (18), the inner wall of the cavity groove (18) is fixedly connected to a spring (19), the end of the spring (19) away from the cavity groove (18) is fixedly connected to a snap-in ball (20), the inner wall of the mounting ring (21) away from the end of the connecting block (4) is also provided with a snap-in groove (22), and the upper end surface of the connecting plate (5) is slidably connected to the inner upper surface of the machine tool tool arm housing (1).

5. The automatic tool-changing CNC machine tool according to claim 2, characterized in that: The deflection assembly comprises: A fixing rod (33), the lower end surface of the fixing rod (33) being fixedly connected to the inner lower end surface of the machine tool tool arm housing (1), the upper end surface of the fixing rod (33) being fixedly connected to a placement plate (35), the upper end surface of the placement plate (35) being provided with a motor (36), the output end of the motor (36) being fixedly connected to a rotating rod (44), the end of the rotating rod (44) away from the motor (36) being fixedly connected to a cam (49), the end surface of the cam (49) facing away from the motor (36) being fixedly connected to a sliding column (48), and the end surface of the cam (49) facing away from the motor (36) being also fixedly connected to an arc-shaped sheet (27).

6. The automatic tool-changing CNC machine tool according to claim 5, characterized in that: The deflection assembly further comprises: A straight tooth row (38), the tooth surface of the straight tooth row (38) is meshingly connected with a tooth ring (8), the end surface of the tooth ring (8) is fixedly connected to the inner wall of the right-angle frame (11), the back tooth surface of the straight tooth row (38) is provided with an arc groove (46), the back tooth surface of the straight tooth row (38) is also provided with a strip groove (47), the outer surface of the arc sheet (27) is slidably connected to the groove wall of the arc groove (46), the surface of the sliding column (48) is slidably connected to the groove wall of the strip groove (47), the lower end surface of the straight tooth row (38) is fixedly connected with a sliding rod (39), the surface of the sliding rod (39) is slidably connected with a fixed cylinder (40), and the lower end surface of the fixed cylinder (40) is fixedly connected to the inner lower end surface of the machine tool tool arm housing (1).

7. The automatic tool-changing CNC machine tool according to claim 5, characterized in that: The pressing assembly comprises: A gear ring 2 (45), the inner wall of the gear ring 2 (45) is fixedly connected to the surface of the rotating rod 1 (44), the tooth surface of the gear ring 2 (45) is meshingly connected with a straight tooth row 2 (37), the upper end surface of the straight tooth row 2 (37) is fixedly connected to a limit plate, the lower end surface of the connecting plate (5) is fixedly connected to a connecting frame 1 (26), the end surface of the connecting frame 1 (26) is provided with a sliding groove, the groove wall of the sliding groove is slidably connected to the surface of the straight tooth row 2 (37), and the end surface of the connecting frame 1 (26) is also provided with a transverse groove, the groove wall of the transverse groove is slidably connected to the surface of the limit plate.

8. The automatic tool-changing CNC machine tool according to claim 7, characterized in that: The push-out component comprises: A sliding block (25), the surface of the sliding block (25) being fixedly connected to the surface of the connecting frame (26), the surface of the sliding block (25) being also slidably connected to the limiting frame (24), a notch being provided on the inner lower surface of the machine tool tool arm housing (1), the groove wall of the notch being slidably connected to the lower end surface of the limiting frame (24); A sliding frame (28), the outer surface of the sliding frame (28) is fixedly connected to the outer surface of the sliding block 1 (25), the inner wall of the sliding frame (28) is slidably connected to a sliding column 3 (29), the end surface of the sliding column 3 (29) is fixedly connected to a bent rod 1 (30), the center end of the bent rod 1 (30) is provided with a through slot, the slot wall of the slot is hinged with a fixed plate 2 (31), the lower end surface of the fixed plate 2 (31) is fixedly connected to the inner lower surface of the machine tool tool arm housing (1); A pressing plate (34), the upper end surface of the pressing plate (34) is fixedly connected to the lower end surface of the straight tooth row 2 (37), the end of the curved rod 1 (30) away from the end of the sliding column 3 (29) is also rotatably connected to the mounting plate (32), the end surface of the mounting plate (32) is fixedly connected to the spring 3 (43), the other end of the spring 3 (43) is fixedly connected to the sliding plate (42), the surface of the sliding plate (42) is slidably connected to the surface of the fixing plate 2 (31), the end surface of the sliding plate (42) is fixedly connected to the sliding column 4 (41), the end surface of the sliding column 4 (41) away from the end of the sliding plate (42) slides through the end surface of the mounting plate (32).

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