A CNC machining center

Abstract

The present application relates to a CNC machining center, which includes a frame; a spindle box slidably arranged on the frame for forming an unlocking position and a clamping position, wherein the unlocking position is below the clamping position; a spindle broaching member arranged on the spindle box; an unlocking trigger member; a flying saucer tool magazine rotatably arranged on the frame, wherein the flying saucer tool magazine is provided with a tool changing position, wherein when the spindle box moves from the clamping position to the unlocking position, the unlocking trigger member is connected to the spindle broaching member for causing the spindle broaching member to release the tool, and when the spindle box moves from the unlocking position to the clamping position, the unlocking trigger member is disconnected from the spindle broaching member for causing the spindle broaching member to clamp the tool; and a tool magazine swinging member, wherein when the spindle box moves upward and enters the clamping position, the tool changing position enters the movement path of the spindle broaching member for allowing the tool to leave the tool changing position, and when the spindle box moves downward and leaves the clamping position, the tool changing position leaves the movement path of the spindle broaching member for allowing the tool to enter the tool changing position. The present application has the effect of improving the tool changing efficiency of the machining center.

Description

Technical Field

[0001] The present application relates to the technical field of machine tools, and in particular to a CNC machining center. Background Art

[0002] Machine tools are machines used to process metal / non-metal workpieces into desired shapes and sizes using various cutting or non-cutting methods using appropriate cutting tools. Examples include turning centers, vertical / horizontal machining centers, portal machining centers, electrical discharge machines, horizontal NC drilling machines, CNC lathes, and other machine tools, which are widely used in various industrial sites depending on the purpose of the corresponding operations. Machine tools also have control consoles that use numerical control or computer numerical control technology, so they can be called CNC machining centers.

[0003] In the related technology, the CNC machining center also includes a frame, a spindle box, a workbench, a tool magazine and a tool changing robot. The spindle box is vertically slidably arranged on the frame, and a spindle broaching part and an unlocking part are provided on the spindle box. The spindle broaching part is used to clamp the tool, and the unlocking part is used to allow the spindle broaching part to release the tool; the workbench is set on the frame through an XY two-axis slide, and the workbench is located below the spindle box; the tool magazine is set on the frame, and a plurality of tools are loaded in the tool magazine; the tool changing robot is set on the frame, and when performing the tool changing process, the spindle box is first The spindle box moves up so that there is a predetermined distance between the spindle box and the workbench, and then the tool changing robot moves to the spindle broaching part, and at the same time, the spindle broaching part releases the tool through the unlocking part, so that the tool is transferred to the tool changing robot, and then the tool changing robot moves to the location of the tool magazine, and transfers the old tool to the tool magazine, and transfers the new tool to the tool changing robot, and finally the tool changing robot transfers the new tool to the spindle broaching part, and at the same time releases the unlocking part on the spindle broaching part, thereby realizing the tool changing process of the spindle broaching part.

[0004] Regarding the above-mentioned related technologies, there is a defect that when changing tools, the spindle tool broaching part needs to stay at a certain height and wait for the tool changing robot to transfer the new and old tools between the tool magazine and the spindle tool broaching part, which leads to low tool changing efficiency of the CNC machining center. Summary of the Invention

[0005] In order to improve the tool changing efficiency of a CNC machining center, the present application provides a CNC machining center.

[0006] The CNC machining center provided in this application adopts the following technical solutions:

[0007] A CNC machining center, comprising:

[0008] frame;

[0009] A spindle box is slidably arranged on the frame and is used to form an unlocking position and a clamping position, wherein the unlocking position is below the clamping position;

[0010] A spindle broaching member, arranged on the spindle box;

[0011] Unlock the trigger;

[0012] A flying saucer tool magazine is rotatably arranged on the frame, and the flying saucer tool magazine is provided with a tool changing position. When the spindle box moves from the clamping position to the unlocking position, the unlocking trigger is connected to the spindle broaching member, so as to release the tool from the spindle broaching member. When the spindle box moves from the unlocking position to the clamping position, the unlocking trigger is disconnected from the spindle broaching member, so as to clamp the tool from the spindle broaching member.

[0013] The tool magazine swinging part, when the spindle box moves up and enters the clamping position, the tool changing position enters the movement path of the spindle broaching part, which is used to allow the tool to leave the tool changing position; when the spindle box moves down and leaves the clamping position, the tool changing position leaves the movement path of the spindle broaching part, which is used to allow the tool to enter the tool changing position.

[0014] By adopting the above technical solution, when tool changing is required, the spindle box is first moved up to the clamping position, wherein when the spindle broaching part has not reached the height of the flying saucer tool magazine, the tool magazine swinging part needs to make the tool changing position not in the movement path of the spindle broaching part, and in the process of the spindle box moving from the spindle broaching part to the height where the flying saucer tool magazine is located to the clamping position, the tool magazine swinging part allows the flying saucer tool magazine to rotate, allowing the tool changing position to enter the movement path of the spindle broaching part. When the spindle box moves to the clamping position, the old tool on the spindle broaching part will be connected to the clamping structure of the flying saucer tool magazine at the tool changing position, and then the spindle box moves up to the unlocking position. In this process, the unlocking trigger is connected to the spindle broaching member to allow the spindle broaching member to release the old tool, and then the tool in the flying saucer tool magazine is rotated to move the new tool to the tool change position. Finally, the spindle box is moved down to the clamping position, and the unlocking trigger is disconnected from the spindle broaching member to allow the spindle broaching member to clamp the new tool, so that the tool can be replaced by moving the spindle box up and down, which helps to improve the tool changing efficiency of the machining center. In addition, when the spindle box moves down and away from the clamping position, the tool change position will leave the path of the spindle broaching member to disconnect the new tool from the clamping structure at the tool change position.

[0015] Preferably, the unlocking trigger member includes a trigger lever, a guide abutment block and a first return spring, the trigger lever is rotatably arranged on the spindle box, for forming an abutment end and a trigger end, the trigger end is connected to the end of the spindle broaching member away from the end for clamping the tool; the guide abutment block is arranged on the frame, and the guide abutment block is tilted to be provided with a trigger guide surface, when the spindle box moves from the clamping position to the unlocking position, the trigger guide surface abuts against the abutment end, for moving the trigger end downward to allow the spindle broaching member to release the tool; one end of the first return spring is connected to the spindle box, and the other end is connected to the trigger lever, when the spindle box moves from the unlocking position to the clamping position, the first return spring is used to move the trigger end upward to allow the spindle broaching member to clamp the tool.

[0016] By adopting the above technical solution, in the process of the spindle box moving from the clamping position to the unlocking position, the abutting end will move from the inclined low position of the trigger guide surface to the inclined high position, so that the trigger end presses down the spindle broaching part, and at the same time, the tool is released by the structural characteristics of the spindle broaching part itself; and in the process of the spindle box moving from the unlocking position to the clamping position, the abutting end will move from the inclined high position of the trigger guide surface to the inclined low position under the action of the first reset spring, so that the trigger end pulls up the spindle broaching part, and at the same time, the tool is clamped by the structural characteristics of the spindle broaching part itself, thereby realizing the clamping and release of the tool during the up and down movement of the spindle box.

[0017] Preferably, the distance between the abutting end and the rotation center of the trigger lever is greater than the distance between the triggering end and the rotation center of the trigger lever; an abutting roller is rotatably connected to the abutting end, and the abutting roller rolls and abuts against the triggering guide surface.

[0018] By adopting the above technical solution, on the one hand, the distance relationship between the abutment end and the trigger end and the rotation center of the trigger lever can make the trigger lever a force-saving lever, so that the spindle broaching part can smoothly release the tool during the upward movement of the spindle box; on the other hand, the setting of the abutment roller can also improve the smoothness of the abutment end moving from the inclined low point to the inclined high point of the trigger guide surface, and at the same time, it can also improve the smoothness of the spindle broaching part in releasing the tool.

[0019] Preferably, the tool magazine swinging member includes an avoidance guide plate and a second return spring, the avoidance guide plate is arranged on the spindle box, and the avoidance guide plate is provided with a avoidance guide surface, when the spindle box moves down and leaves the clamping position, the avoidance guide surface is used to rotate the flying saucer tool magazine to allow the tool changing position to leave the movement path of the spindle broaching member; one end of the second return spring is connected to the frame, and the other end is connected to the flying saucer tool magazine, when the spindle box moves up and enters the clamping position, the second return spring is used to rotate the flying saucer tool magazine to allow the tool changing position to enter the movement path of the spindle broaching member.

[0020] By adopting the above technical solution, after the spindle broaching part is clamped with a new tool, the spindle box will move down for processing. During this process, the spindle box will use the avoidance guide surface on the avoidance guide plate to flip the flying saucer tool magazine so that the tool changing position leaves the movement path of the spindle broaching part, thereby achieving the purpose of disconnecting the new tool from the clamping structure at the tool changing position; and when the spindle broaching part needs to replace the tool, the spindle box will move up to the clamping position, and in the process that the flying saucer tool magazine does not abut against the avoidance guide surface, the flying saucer tool magazine also No reset rotation occurs, and after the flying saucer tool magazine begins to abut against the avoidance guide surface, the flying saucer tool magazine will reset and rotate, so that the tool changing position gradually approaches the movement path of the spindle broaching part. When the spindle box moves to the clamping position, the tool changing position enters the movement path of the spindle broaching part, so as to achieve the purpose of connecting the old tool with the clamping structure at the tool changing position. In the process of the spindle box moving up and down, the flying saucer tool magazine will not hinder the movement of the spindle box, and the detachable connection between the tool and the clamping structure at the tool changing position can be realized.

[0021] Preferably, the spindle box is connected to the frame via a screw slide.

[0022] By adopting the above technical solution, on the one hand, the up and down movement of the spindle box is realized by means of a screw slide, and on the other hand, the movement path of the spindle box can be made more accurate, which helps to improve the smoothness of the tool changing process.

[0023] Preferably, the frame is further provided with an auxiliary tool changing mechanism, and when there is a damaged tool in the flying saucer tool magazine and the spindle box is working, the auxiliary tool changing mechanism is used to replace the damaged tool in the flying saucer tool magazine.

[0024] By adopting the above technical solution, due to the setting of the auxiliary tool changing mechanism, the damaged tools in the flying saucer tool magazine can be replaced while the spindle box is processing, so the damaged tools in the flying saucer tool magazine can be replaced without stopping the machine.

[0025] Preferably, the auxiliary tool changing mechanism includes:

[0026] A YZ two-axis slide is provided on the frame;

[0027] A connecting seat connected to the YZ two-axis slide;

[0028] An L-shaped swing arm, one end of which is rotatably connected to the connecting seat, and is used to allow the other end to enter the extended path of the tool changing position along the Y-axis direction;

[0029] A tool clamping assembly is connected to the L-shaped swing arm, and the tool clamping assembly is provided with a plurality of clamping positions. When the clamping position enters the tool changing position, the clamping structure at the clamping position is used to release the tool carried by itself or clamp the tool at the tool changing position;

[0030] The tool changing turntable is rotatably connected to one end of the L-shaped swing arm away from the connecting seat. The tool changing turntable is provided for the tool clamping assembly to allow the different clamping positions to move to a position opposite to the tool changing position along the Y-axis direction.

[0031] By adopting the above technical solution, when it is necessary to replace a damaged tool in the flying saucer tool magazine, the damaged tool is first moved to the tool change position by rotating the flying saucer tool magazine, and then the new tool is loaded into one of the clamping positions of the tool clamping assembly, and then the empty clamping position is located at a position relative to the tool change position along the Y-axis direction through the joint action of the YZ two-axis slide and the L-shaped swing arm, and finally the old tool is connected to the empty clamping position through the YZ two-axis slide, thereby transferring the old tool to the tool clamping assembly. Similarly, it is only necessary to first use the tool change turntable to match the clamping position of the new tool to the position of the tool change position, and then use the YZ two-axis slide to connect the new tool to the tool change position, so as to achieve the purpose of replacing the new tool on the flying saucer tool magazine. In addition, when the spindle broaching part on the spindle box needs to be changed, it is only necessary to use the L-shaped swing arm to move the tool clamping assembly away from the top of the spindle box.

[0032] Preferably, the tool clamping assembly includes an L-shaped supporting plate, a suction cup and an air path connecting piece, the L-shaped supporting plate is connected to the peripheral edge of the tool changing turntable, the L-shaped supporting plate is used to carry the tool, and there are multiple L-shaped supporting plates distributed around the rotation axis of the tool changing shaft to form multiple clamping positions; the suction cup is arranged on the L-shaped supporting plate, and the suction cup is used to adsorb the tool; the air path connecting piece is connected to the multiple suction cups, and when the tool changing turntable rotates, the air path connecting piece is used to connect the air paths of the multiple suction cups.

[0033] By adopting the above technical solution, on the one hand, through the setting of the L-shaped support plate and the suction cup, it is possible to not only load the tool on the clamping position, but also to remove the tool from the tool changing position; on the other hand, through the setting of the air path connecting piece, the normal function of the suction cup can be maintained during the rotation of the tool changing turntable.

[0034] Preferably, the gas path connecting piece includes:

[0035] a fixed communication block connected to the L-shaped swing arm, the fixed communication block being provided with a fixed channel, one end of the fixed channel being connected to the end surface of the fixed communication block away from the L-shaped swing arm, and the other end being connected to the peripheral outer wall of the fixed communication block, for connecting to an air source;

[0036] A connecting pipe is rotatably sleeved on the fixed connecting block;

[0037] A rotating connecting block, one end of which is fixedly penetrated on the rotation center of the tool changing turntable, and the other end of which is fixedly penetrated on the end of the connecting pipe away from the fixed connecting block, for abutting against the fixed connecting block, wherein the rotating connecting block is provided with a rotating channel, one end of the rotating channel is connected to the fixed channel, and the other end is connected to the end surface of the rotating connecting block away from the fixed connecting block;

[0038] A connecting air pipe has one end connected to an end of the rotating channel away from the fixed channel, and the other end connected to the suction cup.

[0039] By adopting the above technical solution, the fixed connecting block, the connecting pipe and the rotating connecting block can cooperate with each other to ensure that the suction cup can still maintain communication with the external air source during the rotation of the tool changing turntable, thereby achieving the purpose of the suction cup being able to work normally during the rotation of the tool changing turntable.

[0040] In summary, this application includes at least one of the following beneficial technical effects:

[0041] 1. Through the setting of the frame, spindle box, spindle broaching member, unlocking trigger member, flying saucer tool magazine and tool magazine swing member, the tool can be replaced by moving the spindle box up and down, which helps to improve the tool changing efficiency of the machining center;

[0042] 2. Through the setting of the auxiliary tool changing mechanism, the damaged tools in the flying saucer tool magazine can be replaced while the spindle box is processing, so the damaged tools in the flying saucer tool magazine can be replaced without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the CNC machining center in Example 1 of the present application.

[0044] Figure 2 This is a schematic diagram of the unlocking trigger in Example 1 of the present application.

[0045] Figure 3 This is a schematic diagram of the tool magazine swing member in Example 1 of the present application.

[0046] Figure 4 It is a schematic diagram of the CNC machining center in Example 2 of the present application.

[0047] Figure 5 This is a schematic diagram of the tool clamping assembly of Example 2 of the present application.

[0048] Explanation of the accompanying drawings: 1. Frame; 2. Spindle box; 3. Spindle broaching member; 4. Unlocking trigger member; 41. Trigger lever; 411. Abutment end; 412. Trigger end; 42. Guide abutment block; 421. Trigger guide surface; 43. First return spring; 44. Abutment roller; 5. Flying saucer tool magazine; 51. Tool changing position; 6. Tool magazine swing member; 61. Avoidance guide plate; 611. Avoidance guide surface; 62. Second return spring; 7. Auxiliary tool changing mechanism; 71. YZ two-axis slide; 72. Connecting seat; 73. L-shaped swing arm; 74. Tool clamping assembly; 741. L-shaped support plate; 742. Suction cup; 743. Fixed connecting block; 744. Connecting pipe; 745. Rotating connecting block; 746. Connecting air pipe; 75. Tool changing turntable; 8. Clamping position; 9. Fixed channel; 10. Rotating channel. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1-5 This application is described in further detail.

[0050] The embodiment of the present application discloses a CNC machining center.

[0051] Example 1

[0052] Reference Figure 1 and Figure 2 The CNC machining center includes a frame 1, a spindle box 2, a spindle broaching member 3, an unlocking trigger member 4, a flying saucer tool magazine 5 and a tool magazine swinging member 6. Specifically, the spindle box 2 is installed on the frame 1 through a screw slide structure, and the movement direction of the spindle box 2 is vertical, and the movement path of the spindle box 2 has an unlocking position and a clamping position, wherein the unlocking position is above the clamping position; the spindle broaching member 3 is fixedly installed on the spindle box 2, so the movement path of the spindle broaching member 3 is parallel to the movement path of the spindle box 2, and the spindle broaching member 3 is used to clamp the tool, and when the spindle box 2 is in the unlocking position, the spindle broaching member 3 will release the tool, and when the spindle box 2 is in the clamping position, the spindle broaching member 3 will clamp the tool; the unlocking trigger member 4 is arranged on the frame 1, and in the process of the spindle box 2 moving from the clamping position to the unlocking position, the unlocking trigger member 4 is connected to the spindle broaching member 3, which is used to allow the spindle broaching member 3 to release the tool.

[0053] Reference Figure 1 and Figure 2The flying saucer tool magazine 5 is rotatably set on the frame 1, and the rotation axis is parallel to the large circular surface of the flying saucer tool magazine 5, and the flying saucer tool magazine 5 is provided with a tool changing position 51 at its lowest point. At the same time, when the tool on the spindle broaching part 3 is at the tool changing position 51, the spindle box 2 is at the position of the clamping position. In addition, the tool at the tool changing position is still exposed outside the shell of the entire flying saucer tool magazine 5. When the spindle box 2 moves from the clamping position to the unlocking position, the unlocking trigger part 4 will be connected to the spindle broaching part 3 to allow the spindle broaching part 3 to release the tool, and when the spindle box 2 moves from the unlocking position to the clamping position, the unlocking trigger part 4 will release the connection with the spindle broaching part 3 to allow the spindle broaching part 3 to clamp the tool.

[0054] Reference Figure 1 and Figure 2 When the spindle box 2 moves down and leaves the clamping position, the tool magazine swing part 6 will allow the flying saucer tool magazine 5 to rotate, so that the tool changing position 51 leaves the movement path of the spindle broaching part 3, so that the new tool is disconnected from the clamping structure at the tool changing position 51.

[0055] Reference Figure 1 and Figure 2 The entire process of tool changing is as follows: first, the spindle box 2 moves up to the clamping position, and the clamping structure at the tool changing position 51 is connected to the old tool; second, the spindle box 2 continues to move up to the unlocking position, and the spindle broaching part 3 releases the old tool; third, the spindle box 2 moves up and away from the unlocking position, so that the spindle broaching part 3 will not hinder the rotation of the flying saucer tool magazine 5; fourth, the flying saucer tool magazine 5 rotates to allow the new tool to be transferred to the tool changing position 51; fifth, the spindle box 2 moves down to the clamping position, and the spindle broaching part 3 clamps the new tool; sixth, the spindle box 2 moves down and away from the clamping position, and the clamping structure at the tool changing position 51 is disconnected from the new tool, so that the tool changing of the spindle broaching part 3 can be achieved directly by moving the spindle box 2 up and down, thereby helping to improve the tool changing efficiency of the CNC machining center.

[0056] Reference Figure 1 and Figure 2The unlocking trigger member 4 includes a trigger lever 41, a guide abutment block 42 and a first return spring 43. Specifically, the trigger lever 41 is rotatably connected to the spindle box 2, and the trigger lever 41 has an abutment end 411 and a trigger end 412, wherein the abutment end 411 is rotatably connected to the abutment roller 44, and the trigger end 412 is connected to the end of the spindle broaching member 3 away from the end used for clamping the tool; the guide abutment block 42 is fixedly mounted on the frame 1, and the guide abutment block 42 is formed with a trigger guide surface 421 in an inclined state, and the trigger guide surface 421 rolls and abuts against the abutment roller 44. At the same time, when the spindle box 2 moves from the clamping position to the unlocking position, the trigger guide surface 421 abuts against the abutment end 411 to allow the trigger end 412 to move downward, so as to release the tool through the structural characteristics of the spindle broaching member 3 itself. In addition, in this embodiment, when the abutment end 411 moves to the uppermost end of the trigger guide surface 421, the spindle box 2 is in the unlocking position.

[0057] Reference Figure 1 and Figure 2 One end of the first return spring 43 is connected to the spindle box 2, and the other end is connected to the trigger lever 41. When the spindle box 2 moves from the unlocking position to the clamping position, the first return spring 43 allows the trigger end 412 to move up, so as to clamp the tool through the structural characteristics of the spindle broaching member 3 itself, so that in the process of the spindle box 2 moving up and down, the spindle broaching member 3 can release the tool and clamp the tool. At the same time, in this embodiment, in order to improve the smoothness of the downward pressing of the trigger lever 41, the distance between the abutting end 411 and the rotation center of the trigger lever 41 is greater than the distance between the trigger end 412 and the rotation center of the trigger lever 41, so the trigger lever 41 will form a force-saving lever.

[0058] Reference Figure 1 and Figure 3The tool magazine swing member 6 includes an avoidance guide plate 61 and a second return spring 62. The avoidance guide plate 61 is fixedly mounted on the spindle box 2. At the same time, the avoidance guide plate 61 is formed with an arc-shaped avoidance guide surface 611. When the spindle box 2 moves down and away from the clamping position, the avoidance guide surface 611 will abut against the flying saucer tool magazine 5 to rotate the flying saucer tool magazine 5 to allow the tool changing position 51 to leave the path where the spindle broaching member 3 is located, thereby achieving the purpose of disconnecting the clamping structure at the tool changing position 51 from the tool. In addition, in this embodiment, when the spindle box 2 is processing the workpiece, the tool changing position 51 is still not in the state of being rotated. When the spindle broaching member 3 is in the state of the path where the spindle broaching member 3 is located; one end of the second return spring 62 is connected to the frame 1, and the other end is connected to the flying saucer tool magazine 5. Then, when the spindle box 2 moves up into the clamping position, the spindle broaching member 3 has not yet entered the height where the flying saucer tool magazine 5 is located, and the flying saucer tool magazine 5 has not yet abutted against the avoidance guide surface 611. In the process of the spindle broaching member 3 reaching the height of the flying saucer tool magazine 5 to the clamping position, the second return spring 62 will allow the flying saucer tool magazine 5 to perform a reset rotation, so that the tool changing position 51 enters the movement path of the spindle broaching member 3, thereby achieving the purpose of connecting the clamping structure at the tool changing position 51 with the tool.

[0059] The implementation principle of a CNC machining center in Example 1 of the present application is: first, the spindle box 2 moves up to the clamping position, and the clamping structure at the tool changing position 51 is connected to the old tool; second, the spindle box 2 continues to move up to the unlocking position, and the spindle broaching part 3 releases the old tool; third, the spindle box 2 moves up and away from the unlocking position, so that the spindle broaching part 3 will not hinder the rotation of the flying saucer tool magazine 5; fourth, the flying saucer tool magazine 5 rotates to allow the new tool to be transferred to the tool changing position 51; fifth, the spindle box 2 moves down to the clamping position, and the spindle broaching part 3 clamps the new tool; sixth, the spindle box 2 moves down and away from the clamping position, and the clamping structure at the tool changing position 51 is disconnected from the new tool, so that the tool changing work of the spindle broaching part 3 can be achieved directly by moving the spindle box 2 up and down, thereby helping to improve the tool changing efficiency of the CNC machining center.

[0060] Example 2, reference Figure 4 and Figure 5, the difference from Example 1 is that an auxiliary tool changing mechanism 7 is also provided on the frame 1, so that when the tool magazine in the flying saucer tool magazine 5 is damaged, the damaged tool in the flying saucer tool magazine 5 can be replaced while the spindle box 2 is still working. Specifically, the auxiliary tool changing mechanism 7 includes a YZ two-axis slide 71, a connecting seat 72, an L-shaped swing arm 73, a tool changing turntable 75 and a tool clamping assembly 74. The YZ two-axis slide 71 is arranged on the frame 1; the connecting seat 72 is connected to the YZ two-axis slide 71, so the connecting seat 72 can move along the Y-axis and Z-axis directions; one end of the L-shaped swing arm 73 is connected to the connecting seat 72 through motor rotation, and the other end can be rotated to the top of the spindle box 2 under the action of the motor; the tool changing turntable 75 is connected to the end of the L-shaped swing arm 73 away from the connecting seat 72, and the tool changing turntable 75 is cylindrical in shape, and the tool changing turntable 75 is rotated around its own axis through the transmission structure of the motor gear.

[0061] Reference Figure 4 and Figure 5 The tool clamping assembly 74 includes an L-shaped supporting plate 741, a suction cup 742 and an air path connecting piece. Specifically, the L-shaped supporting plate 741 is connected to the peripheral edge of the tool changing turntable 75, and the L-shaped supporting plate 741 will carry the tool, and there are multiple L-shaped supporting plates 741 evenly distributed around the axis of the tool changing turntable 75 to form multiple clamping positions 8; the suction cup 742 is fixedly set on each L-shaped supporting plate 741, and the suction cup 742 is used to absorb the tool. When the tool is changed, the tool clamping assembly is first moved along the Y-axis. Move the empty clamping position 8 to the tool changing position 51 so that the old tool is connected to the suction cup 742 of the empty clamping position 8, and then move the tool clamping assembly along the Y-axis direction to release the connection between the old tool and the clamping structure at the tool changing position 51, and then use the tool changing turntable 75 to align the clamping position 8 where the new tool is located with the tool changing position 51, and finally move the tool clamping assembly along the Y-axis direction to connect the new tool to the clamping structure at the tool changing position 51, and at the same time release the connection between the suction cup 742 and the new tool.

[0062] Reference Figure 4 and Figure 5 The air path connecting parts include a fixed connecting block 743, a connecting pipe 744, a rotating connecting block 745 and a connecting air pipe 746. Specifically, the fixed connecting block 743 is connected to the end of the L-shaped swing arm 73 away from the connecting seat 72. The fixed connecting block 743 is cylindrical in shape. At the same time, the fixed connecting block 743 is provided with a plurality of fixed channels 9, one end of which is connected to the end face of the fixed connecting block 743 away from the L-shaped swing arm 73, and the other end is connected to the outer wall of the circumference of the fixed connecting block 743 close to the end of the L-shaped swing arm 73, so as to be connected to the air source; one end of the connecting pipe 744 is arranged on the end of the fixed connecting block 743 away from the L-shaped swing arm 73 through a bearing sleeve.

[0063] Reference Figure 4 and Figure 5 The rotating connecting block 745 is cylindrical in shape, one end of the rotating connecting block 745 is fixedly penetrated on the rotation center of the tool changing turntable 75, and the other end is fixedly penetrated on the end of the connecting pipe 744 away from the fixed connecting block 743, and also abuts against the fixed connecting block 743. At the same time, the rotating connecting block 745 is provided with a plurality of rotating channels 10, one end of the rotating channel 10 is connected to the fixed channel 9, and the other end is connected to the end face of the rotating connecting block 745 away from the fixed connecting block 743; one end of the connecting air pipe 746 is connected to the suction cup 742, and the other end is connected to the end of the rotating channel 10 away from the fixed channel 9. In the process of rotation of the tool changing turntable 75, the fixed channel 9 can still be connected to the rotating channel 10 corresponding to its own position, thereby maintaining the normal function of the suction cup 742.

[0064] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A CNC machining center, characterized by: include: Rack (1); A spindle box (2) is slidably arranged on the frame (1) and is used to form an unlocking position and a clamping position, wherein the unlocking position is located below the clamping position; A spindle broaching member (3) is arranged on the spindle box (2); Unlock trigger (4); A flying saucer tool magazine (5) is rotatably arranged on the frame (1), and the flying saucer tool magazine (5) is provided with a tool changing position (51). When the spindle box (2) moves from the clamping position to the unlocking position, the unlocking trigger member (4) is connected to the spindle broaching member (3) to release the tool from the spindle broaching member (3). When the spindle box (2) moves from the unlocking position to the clamping position, the unlocking trigger member (4) is disconnected from the spindle broaching member (3) to clamp the tool from the spindle broaching member (3). The tool magazine swinging member (6) is configured such that when the spindle box (2) moves upward and enters the clamping position, the tool changing position (51) enters the motion path of the spindle broaching member (3) to allow the tool to leave the tool changing position (51); and when the spindle box (2) moves downward and leaves the clamping position, the tool changing position (51) leaves the motion path of the spindle broaching member (3) to allow the tool to enter the tool changing position (51); The frame (1) is also provided with an auxiliary tool changing mechanism (7). When a tool in the flying saucer tool magazine (5) is damaged and the spindle box (2) is working, the auxiliary tool changing mechanism (7) is used to replace the damaged tool in the flying saucer tool magazine (5); The auxiliary tool changing mechanism (7) comprises: A YZ two-axis slide (71) is arranged on the frame (1); A connecting seat (72) connected to the YZ two-axis slide (71); An L-shaped swing arm (73), one end of which is rotatably connected to the connecting seat (72) and is used to allow the other end to enter the extended path of the tool changing position (51) along the Y-axis direction; A tool clamping assembly (74) is connected to the L-shaped swing arm (73), and the tool clamping assembly (74) is provided with a plurality of clamping positions (8). When the clamping position (8) enters the tool changing position (51), the clamping structure at the clamping position (8) is used to release the tool carried by the clamping position or clamp the tool at the tool changing position (51); A tool-changing turntable (75) is rotatably connected to one end of the L-shaped swing arm (73) away from the connecting seat (72). The tool-changing turntable (75) is provided for the tool clamping assembly (74) to allow different clamping positions (8) to move to positions opposite to the tool-changing position (51) along the Y-axis direction.

2. The CNC machining center according to claim 1, characterized in that: The unlocking trigger member (4) includes a trigger lever (41), a guide abutment block (42) and a first return spring (43); the trigger lever (41) is rotatably arranged on the spindle box (2) to form an abutment end (411) and a trigger end (412); the trigger end (412) is connected to the end of the spindle broaching member (3) away from the end for clamping the tool; the guide abutment block (42) is arranged on the frame (1); the guide abutment block (42) is tilted to have a trigger guide surface (421) which is arranged on the spindle box (2) from When the clamping position moves to the unlocking position, the trigger guide surface (421) abuts against the abutting end (411), which is used to move the trigger end (412) downward to allow the spindle broaching member (3) to release the tool; one end of the first return spring (43) is connected to the spindle box (2), and the other end is connected to the trigger lever (41). When the spindle box (2) moves from the unlocking position to the clamping position, the first return spring (43) is used to move the trigger end (412) upward to allow the spindle broaching member (3) to clamp the tool.

3. The CNC machining center according to claim 2, characterized in that: The distance between the abutting end (411) and the rotation center of the trigger lever (41) is greater than the distance between the triggering end (412) and the rotation center of the trigger lever (41); an abutting roller (44) is rotatably connected to the abutting end (411), and the abutting roller (44) rolls and abuts against the triggering guide surface (421).

4. The CNC machining center according to claim 2, characterized in that: The tool magazine swinging member (6) includes an avoidance guide plate (61) and a second return spring (62), wherein the avoidance guide plate (61) is arranged on the spindle box (2), and the avoidance guide plate (61) is provided with a avoidance guide surface (611). When the spindle box (2) moves down and leaves the clamping position, the avoidance guide surface (611) is used to rotate the flying saucer tool magazine (5) to allow the tool changing position (51) to leave the movement path of the spindle broaching member (3); one end of the second return spring (62) is connected to the frame (1), and the other end is connected to the flying saucer tool magazine (5). When the spindle box (2) moves up and enters the clamping position, the second return spring (62) is used to rotate the flying saucer tool magazine (5) to allow the tool changing position (51) to enter the movement path of the spindle broaching member (3).

5. The CNC machining center according to claim 4, characterized in that: The spindle box (2) is connected to the frame (1) via a screw slide.

6. The CNC machining center according to claim 1, characterized in that: The tool clamping assembly (74) includes an L-shaped supporting plate (741), a suction cup (742) and an air path connecting piece, wherein the L-shaped supporting plate (741) is connected to the peripheral edge of the tool changing turntable (75), and the L-shaped supporting plate (741) is used to carry a tool. There are multiple L-shaped supporting plates (741) distributed around the rotation axis of the tool changing turntable (75) to form multiple clamping positions (8); the suction cup (742) is arranged on the L-shaped supporting plate (741), and the suction cup (742) is used to adsorb the tool; the air path connecting piece is connected to the multiple suction cups (742), and when the tool changing turntable (75) rotates, the air path connecting piece is used to connect the multiple suction cups (742) by air.

7. The CNC machining center according to claim 6, characterized in that: The gas path connecting piece includes: A fixed communication block (743) is connected to the L-shaped swing arm (73), and the fixed communication block (743) is provided with a fixed channel (9). One end of the fixed channel (9) is connected to the end surface of the fixed communication block (743) away from the L-shaped swing arm (73), and the other end is connected to the peripheral outer wall of the fixed communication block (743), and is used for connecting to an air source; A connecting pipe (744) is rotatably sleeved on the fixed connecting block (743); A rotating connecting block (745) has one end fixedly penetrated on the rotation center of the tool changing turntable (75), and the other end fixedly penetrated on the end of the connecting pipe (744) away from the fixed connecting block (743), and is used to abut against the fixed connecting block (743); the rotating connecting block (745) is provided with a rotating channel (10), one end of the rotating channel (10) is connected to the fixed channel (9), and the other end is connected to the end face of the rotating connecting block (745) away from the fixed connecting block (743); A connecting air pipe (746) is connected at one end to an end of the rotating channel (10) away from the fixed channel (9), and at the other end to the suction cup (742).

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