Double-end automatic machining numerical control machine tool

Abstract

The utility model discloses a double-end automatic machining numerical control machine tool which comprises a machine tool base, a first main shaft device, a second main shaft device, a turning tool rest, an X-axis moving platform and a Y-axis moving platform. A machining platform is arranged on the machine tool base; the first main shaft device is arranged on the machine tool base and located above the machining platform, and the axis direction of the first main shaft device is the X-axis direction; the X-axis moving platform is arranged on the machining platform and located on one side of the first main shaft device. The Y-axis moving platform is arranged on the X-axis moving platform; the second main shaft device is arranged on the Y-axis moving platform, and the axis direction of the second main shaft device is the X-axis direction; and the turning tool rest is arranged on the Y-axis moving platform. The automatic double-end machining device can machine rod-shaped materials into small sections and automatically conduct double-end machining on the small sections, manual intervention or assistance is not needed in the double-end machining process, and the automatic double-end machining device has the good automation effect and higher machining efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control processing equipment, in particular to a double-head automatic processing numerical control machine tool. Background Art

[0002] Some machine tools are used for processing rod-shaped materials such as shafts and tubes. Their main structures include a machine base, a spindle, a motor, a chuck, a tool holder, etc. Among them, the motor and the spindle serve as the rotation drive structure for the rod-shaped material, and the chuck is the fixed structure for the rod-shaped material, so that the rod-shaped material can be firmly fixed and the rod-shaped material can rotate stably. In a general lathe, one side is the spindle and the other side is the tool holder. The rod-shaped material will first be cut into suitable small segments, and then one end of the small segment of material will be inserted into the spindle, and the other end will be located at the tool holder, or the tool holder will be moved to the end of the rod-shaped material protruding from the spindle. In this way, for some products that require double-head processing, during the processing process, after processing one end of the material each time, it needs to be disassembled and re-clamped. During the entire processing process, double-head processing cannot be performed and manual intervention is required. Utility Model Content

[0003] In order to solve the technical problem that double-head processing cannot be performed in the prior art, one of the purposes of the present utility model is to provide a double-head automatic processing CNC machine tool.

[0004] One of the purposes of this utility model is achieved by the following technical solution:

[0005] A double-head automatic processing CNC machine tool, the double-head automatic processing CNC machine tool comprising a machine tool base, a first spindle device, a second spindle device, a turning tool holder, an X-axis moving platform and a Y-axis moving platform;

[0006] A processing platform is provided on the machine tool base;

[0007] The first spindle device is arranged on the machine tool base and is located above the machining platform, and the axis direction of the first spindle device is the X-axis direction;

[0008] The X-axis moving platform is arranged on the processing platform and is located on one side of the first spindle device;

[0009] The Y-axis moving platform is arranged on the X-axis moving platform;

[0010] The second spindle device is arranged on the Y-axis movable platform, and the axis direction of the second spindle device is the X-axis direction;

[0011] The tool holder is arranged on the Y-axis moving platform.

[0012] Optionally, the X-axis moving platform includes a first sliding assembly and a first driving assembly; the Y-axis moving platform is disposed on the first sliding assembly, and the Y-axis moving platform is also connected to the first driving assembly.

[0013] Optionally, the first drive assembly includes a first bearing seat, a first motor seat, a first screw rod, a first nut, a first screw rod seat and a first motor;

[0014] The first screw rod is arranged along the X-axis direction, the first bearing seat and the first motor seat are respectively provided at both ends of the first screw rod, the first nut is provided on the first screw rod, the first screw rod seat is provided on the first nut, the first motor is provided on the first motor seat, and the first motor is connected to the first screw rod to drive the first screw rod to rotate;

[0015] The Y-axis moving platform is connected to the first screw seat.

[0016] Optionally, the top of the processing platform is provided with an X-axis groove extending along the axial direction;

[0017] The first driving assembly is disposed in the X-axis groove. There are two groups of the first sliding assemblies, and the two groups of the first sliding assemblies are respectively disposed along two sides of the X-axis groove.

[0018] Optionally, the Y-axis moving platform includes an upper slide plate, a lower slide plate, a second sliding assembly and a second driving assembly;

[0019] The lower slide is arranged on the X-axis moving platform, the second sliding assembly and the second driving assembly are arranged on the lower slide, and the upper slide is arranged on the second sliding assembly and connected to the second driving assembly;

[0020] The second spindle device and the tool holder are arranged on the upper slide plate.

[0021] Optionally, the second drive assembly includes a second bearing seat, a second motor seat, a second screw rod, a second nut, a second screw rod seat and a second motor;

[0022] The second screw is arranged on the lower sliding plate along the Y-axis direction, the second bearing seat and the second motor seat are provided on the lower sliding plate and are respectively provided at both ends of the second screw, the second nut is provided on the second screw, the second screw seat is provided on the second nut, the second motor is provided on the second motor seat, and the second motor is connected to the second screw to drive the second screw to rotate;

[0023] The upper slide plate is connected to the second screw rod seat.

[0024] Optionally, the lower sliding plate is provided with a Y-axis groove extending along the Y-axis direction;

[0025] The second driving assembly is disposed in the Y-axis groove. There are two groups of second sliding assemblies, and the two groups of second sliding assemblies are respectively disposed along two sides of the Y-axis groove.

[0026] Optionally, the first spindle device includes a first spindle, a spindle box and a first fixture, the spindle box is arranged on the machining platform, the first spindle is arranged in the spindle box, and the first fixture is arranged at one end of the first spindle.

[0027] Optionally, the second spindle device includes a second spindle, a spindle seat and a second fixture, the spindle seat is arranged on the X-axis movable platform, the second spindle is arranged on the spindle seat, and the second fixture is arranged at one end of the second spindle.

[0028] Optionally, the double-head automatic machining CNC machine tool further includes a tool preparation mechanism for storing spare tools, and the tool preparation mechanism is arranged on the Y-axis moving platform.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] In the present invention, a rod-shaped material is loaded through a first spindle device, the end of the rod-shaped material passes through the first spindle device, and the protruding portion is processed into a first processing end by a tool on a turning tool holder; the Y-axis moving platform drives the second spindle device to move along the Y-axis direction to align the axis of the first spindle device with the axis of the second spindle device; the X-axis moving platform drives the second spindle device to move toward the first processing end, so that the first processing end extends into the second spindle device, or in other words, the second spindle device is sleeved on the first processing end; the second spindle device clamps the rod-shaped material, the first spindle device releases the rod-shaped material, and the X-axis moving platform drives the second spindle device and the rod-shaped material to move and feed; after the second spindle device moves to the appropriate position, it drives the rod-shaped material to rotate, and the tool on the turning tool holder cuts the rod-shaped material and processes the second processing end from the cut, thus completing the processing of both ends of the small segment of material. Therefore, the present invention can process the rod-shaped material into small segments and automatically perform double-end processing on the small segments. The double-end processing process does not require human intervention or assistance, has good automation effect, and has higher processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a double-head automatic processing CNC machine tool of the present utility model;

[0032] Figure 2 This is an exploded view of the double-head automatic processing CNC machine tool of the present utility model;

[0033] Figure 3This is an exploded view of the first spindle device in the double-head automatic processing CNC machine tool of the present utility model;

[0034] Figure 4 This is an exploded view of the tool holder and the second spindle device in the double-head automatic machining CNC machine tool of the present invention;

[0035] Figure 5 This is an exploded view of the tool preparation mechanism and the Y-axis moving platform in the double-head automatic processing CNC machine tool of the present utility model;

[0036] Figure 6 This is an exploded view of the spare tool holder in the double-head automatic processing CNC machine tool of the present utility model.

[0037] Description of the accompanying drawings:

[0038] 1. Machine tool base; 11. Processing platform; 111. X-axis groove;

[0039] 2. First spindle device; 21. First spindle; 22. Spindle box; 23. First fixture;

[0040] 3. Second spindle device; 31. Second spindle; 32. Spindle seat; 33. Second fixture;

[0041] 4. Turning tool holder;

[0042] 5. X-axis moving platform; 51. First sliding assembly; 52. First driving assembly;

[0043] 6. Y-axis moving platform; 61. Upper slide; 62. Lower slide; 621. Y-axis groove; 63. Second sliding assembly; 64. Second driving assembly;

[0044] 7. Knife preparation mechanism; 71. Knife holder plate; 72. Knife preparation holder; 721. Knife holder; 722. Connecting piece; 723. Adjusting screw; 724. Lifting frame. DETAILED DESCRIPTION

[0045] The following is a combination of the appended examples of the present application Figure 1 To the attached Figure 6 , clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of this application.

[0046] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0048] like Figure 1-2 The double-head automatic machining CNC machine tool shown in the figure includes a machine base 1, a first spindle device 2, a second spindle device 3, a turning tool holder 4, an X-axis movable platform 5, and a Y-axis movable platform 6. A machining platform 11 is provided on the machine base 1. The first spindle device 2 is arranged on the machine base 1 and is located above the machining platform 11, and the axis direction of the first spindle device 2 is the X-axis direction. The X-axis movable platform 5 is arranged on the machining platform 11 and is located on one side of the first spindle device 2. The Y-axis movable platform 6 is arranged on the X-axis movable platform 5. The second spindle device 3 is arranged on the Y-axis movable platform 6, and the axis direction of the second spindle device 3 is the X-axis direction. The turning tool holder 4 is arranged on the Y-axis movable platform 6.

[0049] In the present invention, the rod-shaped material is loaded through the first spindle device 2, the end of the rod-shaped material passes through the first spindle device 2, and the protruding part is processed into a first processing end by the tool on the turning tool holder 4; the Y-axis moving platform 6 drives the second spindle device 3 to move along the Y-axis direction to align the axis of the first spindle device 2 and the axis of the second spindle device 3; the X-axis moving platform 5 drives the second spindle device 3 to move toward the first processing end, so that the first processing end extends into the second spindle device 3, or in other words, the second spindle device 3 is sleeved on the first processing end; the second spindle device 3 clamps the rod-shaped material, the first spindle device 2 releases the rod-shaped material, and the X-axis moving platform 5 drives the second spindle device 3 and the rod-shaped material to move and feed; after the second spindle device 3 moves to the appropriate position, it drives the rod-shaped material to rotate, and the tool on the turning tool holder 4 cuts the rod-shaped material and processes the second processing end from the cut, thus completing the processing of both ends of the small section of material. Therefore, the embodiment of the utility model can process rod-shaped materials into small segments and automatically perform double-head processing on the small segments. The double-head processing process does not require manual intervention or assistance, has good automation effects, and has higher processing efficiency.

[0050] In some embodiments of the X-axis moving platform 5, as Figure 2 As shown, the X-axis moving platform 5 includes a first sliding assembly 51 and a first driving assembly 52. ​​The Y-axis moving platform 6 is disposed on the first sliding assembly 51 and is further connected to the first driving assembly 52.

[0051] For the first drive assembly 52, the first drive assembly 52 includes a first bearing seat, a first motor seat, a first screw rod, a first nut, a first screw rod seat and a first motor. The first screw rod is arranged along the X-axis direction, and the first bearing seat and the first motor seat are arranged on the processing platform 11 and are respectively arranged at the two ends of the first screw rod. Specifically, the two ends of the first screw rod are respectively connected to the first bearing seat and the first motor seat for rotation, such as the first screw rod is connected to the first bearing seat and the first motor seat for rotation through a bearing. The first nut is arranged on the first screw rod, the first screw rod seat is arranged on the first nut, the first motor is arranged on the first motor seat, and the first motor is connected to the first screw rod to drive the first screw rod to rotate. The Y-axis moving platform 6 is connected to the first screw rod seat.

[0052] The Y-axis mobile platform 6 slides with the machine tool base 1 via a first sliding assembly 51, with the sliding engagement direction being the X-axis. Simultaneously, in the first drive assembly 52, the first motor, first screw, first nut, and first screw holder cooperate to enable the first screw holder to move along the X-axis, thereby driving the Y-axis mobile platform 6 to move along the X-axis, ultimately driving the rod-shaped material along the X-axis.

[0053] As shown in the figure, the first sliding assembly 51 includes a first guide rail arranged along the X-axis and a first slider disposed on the first guide rail. The Y-axis movable platform 6 is disposed on the first slider. There are two first sliding assemblies 51, with the two sets of first sliding assemblies 51 located on either side of the first drive assembly 52. ​​The two first guide rails are located on either side of the first screw rod. The sliding engagement between the first slider and the first guide rail allows the Y-axis movable platform 6 to be slidably disposed on the machine tool base 1.

[0054] In some embodiments of the processing platform 11, such as Figure 2 As shown, the top of the processing platform 11 is provided with an X-axis groove 111 extending along the axial direction. The first drive assembly 52 is disposed within the X-axis groove 111. Two sets of first sliding assemblies 51 are provided, one on each side of the X-axis groove 111. The X-axis groove 111 reduces the installation height of the first drive assembly 52, preventing assembly interference with the Y-axis movable platform 6 and improving overall assembly convenience.

[0055] In some embodiments of the Y-axis moving platform 6, specifically, as Figure 2 、 Figure 5 As shown, the Y-axis mobile platform 6 includes an upper slide 61, a lower slide 62, a second sliding assembly 63, and a second drive assembly 64. The lower slide 62 is disposed on the X-axis mobile platform 5, the second sliding assembly 63 and the second drive assembly 64 are disposed on the lower slide 62, and the upper slide 61 is disposed on the second sliding assembly 63 and connected to the second drive assembly 64. The second spindle assembly 3 and the turning tool holder 4 are disposed on the upper slide 61.

[0056] The upper slide 61 connects the second spindle assembly 3 and the tool rest 4, while the lower slide 62 connects to the X-axis moving platform 5, specifically the first slider and the first screw seat. Thus, the lower slide 62 receives the motion state transmitted from the first screw seat, and the upper slide 61 outputs the motion state to the second spindle assembly 3 and the tool rest 4, causing the second spindle assembly 3 and the tool rest 4 to move along the X and Y axes.

[0057] For the second drive assembly 64, the second drive assembly 64 includes a second bearing seat, a second motor seat, a second screw rod, a second nut, a second screw rod seat and a second motor. The second screw rod is arranged on the lower slide 62 along the Y-axis direction, and the second bearing seat and the second motor seat are arranged on the lower slide 62 and are respectively arranged at the two ends of the second screw rod. Specifically, the two ends of the second screw rod are respectively connected to the second bearing seat and the second motor seat for rotation, such as the second screw rod is connected to the second bearing seat and the second motor seat for rotation through a bearing. The second nut is arranged on the second screw rod, the second screw rod seat is arranged on the second nut, the second motor is arranged on the second motor seat, and the second motor is connected to the second screw rod to drive the second screw rod to rotate. The upper slide 61 is connected to the second screw rod seat.

[0058] The second spindle assembly 3 slides in engagement with the lower slide plate 62 via a second sliding assembly 63, with the sliding engagement direction being the Y-axis. Simultaneously, in the second drive assembly 64, the second motor, second screw rod, second nut, and second screw rod holder cooperate to enable the second screw rod holder to move in the Y-axis direction, thereby driving the second spindle assembly 3 in the Y-axis direction via the upper slide plate 61. Ultimately, this drives the second spindle assembly 3 and the tool holder 4 in the Y-axis direction, aligning the second spindle assembly 3 with the first spindle assembly 2, particularly aligning the second spindle 31 with the first spindle 21.

[0059] The second sliding assembly 63 comprises a second guide rail arranged along the Y-axis and a second slider mounted on the second guide rail. The upper slide 61 is mounted on the second slider. There are two second sliding assemblies 63, one on each side of the second drive assembly 64. Specifically, the two second guide rails are located on either side of the second lead screw. The sliding engagement of the second slider and the second guide rail allows the second spindle assembly 3 and the tool holder 4 to slide on the Y-axis movable platform 6.

[0060] In some embodiments of the lower slide plate 62, such as Figure 5 As shown, the lower slide 62 is provided with a Y-axis groove 621 extending along the Y-axis. The second drive assembly 64 is disposed within the Y-axis groove 621. Two sets of second sliding assemblies 63 are provided, one on each side of the Y-axis groove 621. The Y-axis groove 621 is recessed within the lower slide 62, reducing the space occupied by the second drive assembly 64. This further flattens the Y-axis movable platform 6, preventing assembly interference between the second drive assembly 64 and the second spindle assembly 3, and improving overall assembly convenience. This facilitates lowering the height of the second spindle assembly 3 and facilitating alignment of the second spindle 31 with the first spindle 21.

[0061] In some embodiments of the first spindle device 2, such as Figure 2 、 Figure 3As shown, the first spindle assembly 2 includes a first spindle 21, a spindle housing 22, and a first fixture 23. The spindle housing 22 is mounted on the machining platform 11, and the first spindle 21 is mounted in the spindle housing 22. Both ends of the first spindle 21 protrude, and the first fixture 23 is mounted at one end of the first spindle 21. The first spindle 21 is hollow, and rod-shaped materials extend into the first spindle 21. Under the traction of the second spindle assembly 3, the rod-shaped materials are repeatedly fed.

[0062] Corresponding to the second spindle device 3, such as Figure 4 As shown, it includes a second spindle 31, a spindle seat 32, and a second fixture 33. The spindle seat 32 is disposed on the X-axis movable platform 5, the second spindle 31 is disposed on the spindle seat 32, and the second fixture 33 is disposed on the second spindle 31. The second spindle 31 is a hollow spindle. Through the cooperation of the X-axis movable platform 5 and the second fixture 33, the rod-shaped material is pulled and fed during the reciprocating movement of the second spindle device 3.

[0063] The first and second fixtures 23, 33 can be rotary hydraulic cylinders or rotary pneumatic cylinders. The first fixture 23 is preferably hollow, i.e., a hollow rotary hydraulic cylinder or a hollow rotary pneumatic cylinder. The second fixture 33 can be hollow or solid. It is positioned on the second spindle 31, preferably at the end away from the first spindle assembly 2.

[0064] In addition, the double-head automatic machining CNC machine tool further includes two driving devices for driving the first spindle 21 and the second spindle 31 to rotate. The driving devices specifically include a transmission belt, a motor, etc.

[0065] In some embodiments of double-head automatic machining CNC machine tools, such as Figure 2 、 Figure 5 As shown, the double-head automatic processing CNC machine tool also includes a tool preparation mechanism 7 for installing the tool, and the tool preparation mechanism 7 is arranged on the Y-axis moving platform 6. By providing the tool preparation mechanism 7, the double-head automatic processing CNC machine tool can store multiple tools, which is convenient for tool replacement or switching.

[0066] Specifically, the tool preparation mechanism 7 includes a tool holder plate 71 and several tool preparation holders 72. The tool holder plate 71 is provided with multiple T-slots, and the tool preparation holders 72 are mounted on the T-slots. Each tool preparation holder 72 can hold at least one tool. Thus, the presence of several tool preparation holders 72 can significantly increase the number of tool preparations for a dual-head automatic machining CNC machine tool, improving tool switching and providing greater convenience.

[0067] The aforementioned lathe tool rest is specifically arranged on a tool rest fixing plate, and the tool rest fixing plate is arranged on the tool rest plate 71 .

[0068] In some embodiments of the tool holder 72, as Figure 6As shown, the tool stand 72 includes a tool holder 721, a connecting member 722, an adjustment screw 723, and a lifting frame 724. The tool holder 721 is mounted on the tool holder plate 71. A through hole is provided in the tool holder 721. Two lifting frames 724 are respectively arranged on either side of the tool holder 721 for escalation. The connecting member 722 extends through the through hole, with both ends of the connecting member 722 protruding from the through hole. The upper end of the adjustment screw 723 is threadedly connected to the lifting frame 724, while the lower end of the adjustment screw 723 is rotatably connected to the protruding portion of the connecting member 722. In this embodiment, when the adjustment screw 723 is rotated, it is restricted by the through hole of the connecting member 722 and can only move in a selective manner, not in a lifting or lowering motion. However, the rotation of the adjustment screw 723 causes the lifting frame 724 to rise or fall, thereby causing the tool on the lifting frame 724 to move upward or downward. This allows for precise adjustment of the height of the tool stand, facilitating precise tool replacement or switching.

[0069] The lower end of the adjusting screw 723 is rotatably connected to the connecting member 722. Specifically, both ends of the connecting member 722 are provided with through holes through which the adjusting screw 723 can rotate. The adjusting screw 723 can be moved by the connecting member 722 or other structures. For example, the connecting member 722 may have through holes at both ends, and the lower end of the adjusting screw 723 may have an annular groove. The nominal diameter of the adjusting screw 723 may be larger than the diameter of the through holes, while the diameter of the adjusting screw 723 within the annular groove may be smaller than the diameter of the through hole. In this manner, the adjusting screw 723 can be engaged within the through hole of the connecting member 722 through the annular groove.

[0070] Regarding the liftable connection between the lifting frame 724 and the tool holder 721, specifically, a dovetail groove extending up and down is set on the side of the tool holder 721, and a corresponding dovetail rail is set on the side of the lifting frame 724 close to the tool holder 721. The lifting frame 724 slides with the dovetail groove of the tool holder 721 through the dovetail rail, so that the lifting frame 724 can be raised and lowered to the side of the tool holder 721.

[0071] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A double-head automatic processing CNC machine tool, characterized in that: The double-head automatic processing CNC machine tool includes a machine tool base, a first spindle device, a second spindle device, a turning tool holder, an X-axis moving platform and a Y-axis moving platform; A processing platform is provided on the machine tool base; The first spindle device is arranged on the machine tool base and is located above the machining platform, and the axis direction of the first spindle device is the X-axis direction; The X-axis moving platform is arranged on the processing platform and is located on one side of the first spindle device; The Y-axis moving platform is arranged on the X-axis moving platform; The second spindle device is arranged on the Y-axis movable platform, and the axis direction of the second spindle device is the X-axis direction; The tool holder is arranged on the Y-axis moving platform.

2. The double-head automatic processing CNC machine tool according to claim 1, characterized in that: The X-axis moving platform includes a first sliding component and a first driving component; the Y-axis moving platform is arranged on the first sliding component, and the Y-axis moving platform is also connected to the first driving component.

3. The double-head automatic processing CNC machine tool according to claim 2, characterized in that: The first drive assembly includes a first bearing seat, a first motor seat, a first screw rod, a first nut, a first screw rod seat and a first motor; The first screw rod is arranged along the X-axis direction, the first bearing seat and the first motor seat are respectively provided at both ends of the first screw rod, the first nut is provided on the first screw rod, the first screw rod seat is provided on the first nut, the first motor is provided on the first motor seat, and the first motor is connected to the first screw rod to drive the first screw rod to rotate; The Y-axis moving platform is connected to the first screw seat.

4. The double-head automatic processing CNC machine tool according to claim 2, characterized in that: The top of the processing platform is provided with an X-axis groove extending along the axial direction; The first driving assembly is disposed in the X-axis groove. There are two groups of the first sliding assemblies, and the two groups of the first sliding assemblies are respectively disposed along two sides of the X-axis groove.

5. The double-head automatic processing CNC machine tool according to claim 1, characterized in that: The Y-axis moving platform includes an upper slide, a lower slide, a second sliding assembly and a second driving assembly; The lower slide is arranged on the X-axis moving platform, the second sliding assembly and the second driving assembly are arranged on the lower slide, and the upper slide is arranged on the second sliding assembly and connected to the second driving assembly; The second spindle device and the tool holder are arranged on the upper slide plate.

6. The double-head automatic processing CNC machine tool according to claim 5, characterized in that: The second drive assembly includes a second bearing seat, a second motor seat, a second screw rod, a second nut, a second screw rod seat and a second motor; The second screw is arranged on the lower sliding plate along the Y-axis direction, the second bearing seat and the second motor seat are provided on the lower sliding plate and are respectively provided at both ends of the second screw, the second nut is provided on the second screw, the second screw seat is provided on the second nut, the second motor is provided on the second motor seat, and the second motor is connected to the second screw to drive the second screw to rotate; The upper slide plate is connected to the second screw rod seat.

7. The double-head automatic processing CNC machine tool according to claim 5, characterized in that: The lower sliding plate is provided with a Y-axis groove extending along the Y-axis direction; The second driving assembly is disposed in the Y-axis groove. There are two groups of second sliding assemblies, and the two groups of second sliding assemblies are respectively disposed along two sides of the Y-axis groove.

8. The double-head automatic processing CNC machine tool according to claim 1, characterized in that: The first spindle device includes a first spindle, a spindle box and a first fixture. The spindle box is arranged on the processing platform, the first spindle is arranged on the spindle box, and the first fixture is arranged at one end of the first spindle.

9. The double-head automatic processing CNC machine tool according to claim 1, characterized in that: The second spindle device includes a second spindle, a spindle seat and a second fixture. The spindle seat is arranged on the X-axis moving platform, the second spindle is arranged on the spindle seat, and the second fixture is arranged at one end of the second spindle.

10. The double-head automatic processing CNC machine tool according to claim 1, characterized in that: The double-head automatic processing CNC machine tool also includes a tool preparation mechanism for storing spare tools, and the tool preparation mechanism is arranged on the Y-axis moving platform.

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