Multi-station numerical control machine tool

Abstract

The utility model discloses a multi-station numerical control machine tool which comprises a base, a workbench, an installation frame, a plurality of machining mechanisms, a plurality of tool magazines and a plurality of multi-shaft clamping platforms. Each machining mechanism comprises a moving mechanism and a main shaft mechanism, the moving mechanisms comprise an X-axis moving mechanism, a Y-axis moving mechanism and a Z-axis moving mechanism, the Y-axis moving mechanism is arranged at the moving end of the X-axis moving mechanism, and the Z-axis moving mechanism is arranged on the Y-axis moving mechanism. According to the multi-station numerical control machine tool, multi-station independent machining is achieved through the multiple machining mechanisms and the multi-axis clamping platform, independent compensation machining in any direction is achieved, the machining efficiency and precision of workpieces are guaranteed, the whole multi-station numerical control machine tool is compact in structure through the layout of the moving mechanism, and the overall size is reduced; the tool magazine is protected by arranging the protection mechanism, the failure rate is reduced, and the service life of the tool magazine and the tool is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a multi-station numerically controlled machine tool. Background Art

[0002] CNC machine tools are the main cutting equipment for machining today, and machining mechanisms are the most commonly used machine tools for CNC machine tools. With the advancement of technology and the requirements for efficiency in machining, there are now many dual-spindle or even multi-spindle machining machines on the market; and each spindle is equipped with a set of tool magazines, which facilitates tool change and improves machining efficiency. However, in the prior art, for vertical drilling and tapping machines that use a clamp-arm tool magazine, the tool magazine is set at the front end of the spindle; however, since the clamp-arm tool magazine has a disc-like structure, in order to satisfy that each spindle has a corresponding tool magazine, it is necessary to increase the distance between adjacent spindles, resulting in widening of the column, increasing the volume of the equipment, and low space utilization.

[0003] In response to the above problems, people invented patent number: 202321642108.1, which discloses a dual-spindle vertical CNC machine tool. The tool magazine layout of the dual-spindle vertical CNC machine tool can reduce the gap between the first column and the second column, reduce the overall size of the CNC machine tool, and thus improve the space utilization of the CNC machine tool. However, the dual-spindle vertical CNC machine tool still has the following problems: 1. It can only process the same workpiece, and cannot perform chamfering and separate compensation processing on two different workpieces. The next process needs to move the workpiece to another machine tool for processing, which affects the workpiece. Processing efficiency; 2. The existing CNC machine tools can perform feed axial movement and vertical axial movement, and cooperate with the worktable to perform left and right axial movement to form multi-axis processing. This type of mechanism layout causes the size of the mobile worktable to be larger, and when the workpiece needs to be replaced, the worktable needs to be reset before the workpiece can be unloaded or replaced, affecting the subsequent processing efficiency; 3. The tool magazines of existing CNC machine tools are mostly exposed. The iron chips, impurities and cutting fluid generated during the processing of the workpiece may splash into the tool magazine, causing the tool magazine to become stuck or rusted, increasing the occurrence of failures, and affecting the subsequent operation of the tool magazine and the service life of the tool. Utility Model Content

[0004] The utility model aims to solve the technical problems in the prior art that the multi-station CNC machine tool cannot independently compensate for processing of multiple workpieces, the layout of the mobile mechanism is not compact, and the tool magazine has no protection, resulting in an increased failure rate.

[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0006] A multi-station CNC machine tool, comprising a base and a workbench, a mounting frame and more than two processing mechanisms arranged on the base; the workbench is arranged in front of the base, the mounting frame is arranged behind the workbench, and the processing mechanism is arranged in the mounting frame; the mounting frame is provided with more than two tool magazines, and the tool magazines are all provided with protection mechanisms; the processing mechanisms include moving mechanisms and spindle mechanisms, and the moving mechanisms include X-axis moving mechanisms, Y-axis moving mechanisms and Z-axis moving mechanisms, the X-axis moving mechanism is arranged on the base in a horizontal manner, the Y-axis moving mechanism is arranged on the moving end of the X-axis moving mechanism in a longitudinal manner, the Z-axis moving mechanism is arranged on the Y-axis moving mechanism, and the spindle mechanism is arranged on the moving end of the Z-axis moving mechanism; the workbench is also provided with more than two multi-axis clamping platforms.

[0007] As a further improvement, a gantry is provided at the rear of the base, the gantry is provided with a groove, the gantry is provided with two transversely arranged slide rails, the X-axis moving mechanism includes a first servo motor, a first screw assembly and a first slide, the first servo motor is connected to the first screw assembly and is arranged in the groove, a slider group is provided at the bottom of the first slide, the slider group is respectively arranged on the slide rails, the first screw assembly is also provided with a first nut seat, and the first nut seat is fixedly connected to the bottom of the first slide.

[0008] As a further improvement, the Y-axis moving mechanism is arranged on the first slide, the first slide is provided with a groove 1, the Y-axis moving mechanism includes a second servo motor, a second screw assembly and a second slide, the second servo motor is connected to the second screw assembly and is arranged in the groove of the first slide, the second slide is provided with two second slide rails, the second slide rails are provided with a plurality of second sliders, and the plurality of second sliders are fixed on the first slide; the second screw assembly is provided with a second nut seat, and the second nut seat is fixedly connected to the second slide; the second slide is provided with a saddle.

[0009] As a further improvement, the Z-axis moving mechanism is arranged at the end of the saddle; the Z-axis moving mechanism includes a third servo motor, a third screw assembly and a third slide, the third servo motor is connected to the third screw assembly and is vertically arranged on the saddle; the third slide is provided with a plurality of third slide rails, and the third slide rails are provided with a plurality of third sliders, and the plurality of third sliders are fixed on the end face of the saddle; the third screw assembly is provided with a third nut seat, and the third nut seat is fixedly connected to the third slide; the third slide is provided with a mounting seat, and the spindle mechanism is arranged on the mounting seat.

[0010] As a further improvement, the spindle mechanism includes a fourth motor and a tool chuck, wherein the tool chuck is arranged on the driving end of the fourth motor; the tool chuck is provided with a clamp mechanism, and the clamp mechanism is used to fix or release the tool.

[0011] As a further improvement, the tool magazine is a flying saucer type tool magazine, the tool magazine is provided with a fixed bracket, the fixed bracket is fixed on the mounting frame, the tool magazine is provided with a plurality of tool clamps arranged in an array; the protection mechanism includes an outer cover and two box doors, a tool changing entrance is provided between the two box doors, one of the box doors is provided with a cylinder, a baffle is provided at the driving end of the cylinder, and the baffle is used to close the tool changing entrance for protection during operation.

[0012] As a further improvement, the multi-axis clamping platform and the workbench are detachably connected, the multi-axis clamping platform includes an angle rotation mechanism and a plane rotation mechanism, the plane rotation mechanism is arranged on the angle rotation mechanism; the angle rotation mechanism includes a driving component and a platform one, the platform one is connected to the driving component one; the platform one is provided with a mounting hole, and the plane rotation mechanism is arranged in the mounting hole; the plane rotation mechanism includes a rotating motor two and a platform two, the platform two is arranged on the driving end of the rotating motor two, and the platform two is provided with a plurality of mounting grooves arranged in a circular array.

[0013] As a further improvement, the base is also provided with a cutting fluid guide slope.

[0014] Compared with the prior art, the above one or more technical solutions in the multi-station CNC machine tool provided by the embodiment of the utility model have at least one of the following technical effects:

[0015] 1. The utility model can realize multi-station independent processing and independent compensation processing by setting multiple processing mechanisms and configuring a multi-axis clamping platform, thereby ensuring the processing efficiency and accuracy of the workpiece, thereby improving the processing quality of the workpiece, and the multi-axis clamping platform includes an angle rotation mechanism and a plane rotation mechanism, which can control the workpiece to adjust the angle and plane position, realize the multi-axis movement of the workpiece, thereby performing multi-angle processing on the workpiece and improving the machining efficiency;

[0016] 2. By arranging the X-axis moving mechanism on the base in a horizontal manner, the Y-axis moving mechanism on the moving end of the X-axis moving mechanism in a vertical manner, the Z-axis moving mechanism on the Y-axis moving mechanism, and the spindle mechanism on the moving end of the Z-axis moving mechanism, the design layout makes the structure of the entire multi-station CNC machine tool compact, greatly reduces the overall volume of the multi-station CNC machine tool, takes up less space for installation, improves the installation utilization rate of the site, and the workbench does not move, thereby improving the efficiency of workpiece processing, replacement and positioning, and improving processing efficiency;

[0017] 3. A protection mechanism is provided to protect the tool magazine. When the tool needs to be changed, the protection mechanism is opened, and the spindle mechanism moves to the tool changing entrance to change the tool. After the tool changing is completed, the spindle mechanism withdraws and the protection mechanism closes the tool changing entrance, thereby preventing impurities such as iron filings and cutting fluid generated by machining from splashing into the tool magazine, and preventing the various components in the tool magazine from rusting and getting stuck. This better protects the internal tool magazine and cutting tools, reduces the failure rate, extends the service life of the tool magazine and cutting tools, and ensures that subsequent processed products will not be defective due to iron filings and foreign matter adhering to the cutting tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the overall structure of the multi-station CNC machine tool of this embodiment;

[0020] Figure 2 This is a rear view schematic diagram of the multi-station CNC machine tool of this embodiment;

[0021] Figure 3 This is a schematic diagram of the decomposition of the multi-station CNC machine tool of this embodiment;

[0022] Figure 4 Schematic diagram of the multi-axis clamping platform structure of this embodiment. DETAILED DESCRIPTION

[0023] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0024] For example, see the attached Figure 1 to Figure 4A multi-station CNC machine tool 1 includes a base 2 and a workbench 3, a mounting frame 4 and two or more processing mechanisms 5 arranged on the base 2; the workbench 3 is arranged in front of the base 2, the mounting frame 4 is arranged behind the workbench 3, and the processing mechanism 5 is arranged in the mounting frame 4; the mounting frame 4 is provided with more than two tool magazines 6, and the tool magazines 6 are all provided with a protection mechanism 7; the processing mechanism 5 includes a moving mechanism 50 and a spindle mechanism 51, the moving mechanism 50 includes an X-axis moving mechanism 52, a Y-axis moving mechanism 53 and a Z-axis moving mechanism 54, the X-axis moving mechanism 52 is arranged on the base 2 in a horizontal manner, the Y-axis moving mechanism 53 is arranged on the moving end of the X-axis moving mechanism 52 in a longitudinal manner, the Z-axis moving mechanism 54 is arranged on the Y-axis moving mechanism 53, and the spindle mechanism 51 is arranged on the Z-axis moving mechanism 54 on the moving end; the workbench 3 is also provided with more than two multi-axis clamping platforms 8; by setting up a plurality of processing mechanisms 5 and configuring the multi-axis clamping platforms 8, multi-station independent processing can be realized, and independent compensation processing can be realized to ensure the processing efficiency and accuracy of the workpiece, thereby improving the processing quality of the workpiece, and when one of them fails, the workpiece of another station can continue to be processed to ensure the processing efficiency; the X-axis moving mechanism 52 is arranged on the base 2 in a horizontal manner, the Y-axis moving mechanism 53 is arranged on the moving end of the X-axis moving mechanism 52 in a longitudinal manner, the Z-axis moving mechanism 54 is arranged on the Y-axis moving mechanism 53, and the spindle mechanism 51 is arranged on the moving end of the Z-axis moving mechanism 54. The design layout makes the structure of the entire multi-station CNC machine tool 1 compact, greatly reduces the overall volume of the multi-station CNC machine tool 1, occupies a smaller installation space, and improves the installation utilization rate of the site.

[0025] A gantry 20 is provided at the rear of the base 2, and the gantry 20 is provided with a groove. The gantry 20 is provided with two transversely arranged slide rails 21. The X-axis moving mechanism 52 includes a first servo motor 520, a first screw assembly 521 and a first slide 522. The first servo motor 520 is connected to the first screw assembly 521 and is arranged in the groove. The bottom of the first slide 522 is provided with a slider group, and the slider group is respectively arranged on the slide rail 21. The first screw assembly 521 is also provided with a first nut seat, and the first nut seat is fixedly connected to the bottom of the first slide 522. The X-axis moving mechanism 52 is used to control the spindle mechanism 51 to move in the transverse direction, and the first slide 522 is arranged on the same slide rail 21, which reduces the setting of accessories and reduces costs.

[0026] The Y-axis moving mechanism 53 is arranged on the first slide 522, and the first slide 522 is provided with a groove 1. The Y-axis moving mechanism 53 includes a second servo motor 530, a second screw assembly 531 and a second slide 532. The second servo motor 530 is connected to the second screw assembly 531 and is arranged in the groove of the first slide 522. The second slide 532 is provided with two second slide rails 534. The second slide rails 534 are provided with a plurality of second sliders, and the plurality of second sliders are fixed on the first slide 522; the second screw assembly 531 is provided with a second nut seat, and the second nut seat is fixedly connected to the second slide 532; the second slide 532 is provided with a saddle 533. The Y-axis moving mechanism 53 is used to control the spindle mechanism 51 to perform longitudinal movement processing.

[0027] The Z-axis moving mechanism 54 is arranged at the end of the saddle 533; the Z-axis moving mechanism 54 includes a third servo motor 540, a third screw assembly 541 and a third slide 542, the third servo motor 540 is connected to the third screw assembly 541 and is vertically arranged on the saddle 533; the third slide 542 is provided with a plurality of third slide rails 543, and the third slide rails 543 are each provided with a plurality of third sliders, and the plurality of third sliders are fixed on the end surface of the saddle 533; the third screw assembly 541 is provided with a third nut seat, and the third nut seat is fixedly connected to the third slide 542; the third slide 542 is provided with a mounting seat, and the spindle mechanism 51 is arranged on the mounting seat, and the Z-axis moving mechanism 54 is used to control the spindle mechanism 51 to move vertically to process the workpiece.

[0028] The spindle mechanism 51 includes a fourth motor 510 and a tool chuck 511, wherein the tool chuck 511 is arranged on the driving end of the fourth motor 510; the tool chuck 511 is provided with a clamp mechanism, which is used to fix or release the tool, and the spindle mechanism 51 is used to clamp the tool for cutting processing.

[0029] The tool magazine 6 is a flying saucer type tool magazine, and the tool magazine 6 is provided with a fixed bracket, and the fixed bracket is fixed on the mounting frame 4, and the tool magazine 6 is provided with a plurality of tool clips arranged in an array; the protection mechanism 7 includes an outer cover 70 and two box doors 71, and a tool changing entrance 72 is provided between the two box doors 71, and one of the box doors 71 is provided with a cylinder 73, and a baffle 74 is provided at the driving end of the cylinder 73, and the baffle 74 is used to close and protect the tool changing entrance 72 during operation, and the protection mechanism 7 is used to protect the tool magazine 6. When the tool needs to be changed, the protection mechanism 7 is opened, and the spindle mechanism 51 moves to the tool changing entrance 72 for tool changing. After the tool changing action is completed, the spindle mechanism 51 withdraws and the protection mechanism 7 closes the tool changing entrance 72, thereby preventing impurities such as iron filings and cutting fluid generated by machining from splashing into the tool magazine 6, and preventing the various components in the tool magazine 6 from rusting and getting stuck, so as to better protect the internal tool magazine 6 and the tool, reduce the failure rate, and extend the service life of the tool magazine 6 and the tool.

[0030] The multi-axis clamping platform 8 and the workbench 3 are detachably connected and can be added according to needs. The multi-axis clamping platform 8 includes an angle rotation mechanism and a plane rotation mechanism, and the plane rotation mechanism is arranged on the angle rotation mechanism; the angle rotation mechanism includes a driving component and a platform one, and the platform one is connected to the driving component one, and the driving component includes a driving motor and a rotating shaft; the platform one is provided with a mounting hole, and the plane rotation mechanism is arranged in the mounting hole; the plane rotation mechanism includes a rotating motor two and a platform two, and the platform two is arranged on the driving end of the rotating motor two, and the platform two is provided with a plurality of mounting grooves arranged in a circular array. The multi-axis clamping platform 8 is used to control the workpiece to adjust the angle and plane position, realize the multi-axis movement of the workpiece, thereby performing multi-angle processing on the workpiece and improving the machining efficiency.

[0031] The base 2 is further provided with a cutting fluid guiding inclined surface 22 , and an outlet is provided at the rear end of the cutting fluid guiding inclined surface 22 .

[0032] The utility model can realize multi-station independent processing and independent compensation processing by setting multiple processing mechanisms and configuring a multi-axis clamping platform, thereby ensuring the processing efficiency and accuracy of the workpiece, thereby improving the processing quality of the workpiece, and the multi-axis clamping platform includes an angle rotation mechanism and a plane rotation mechanism, which can control the workpiece to adjust the angle and plane position, realize multi-axis movement of the workpiece, thereby performing multi-angle processing on the workpiece and improving the machining efficiency; the design layout of the entire multi-station CNC is achieved by arranging the X-axis moving mechanism on the base in a horizontal manner, the Y-axis moving mechanism on the moving end of the X-axis moving mechanism in a longitudinal manner, the Z-axis moving mechanism on the Y-axis moving mechanism, and the spindle mechanism on the moving end of the Z-axis moving mechanism. The machine tool has a compact structure, which greatly reduces the overall size of the multi-station CNC machine tool, occupies a smaller installation space, improves the installation utilization rate of the site, and the workbench does not move, which improves the efficiency of workpiece processing, replacement and positioning, and improves processing efficiency; by setting a protection mechanism to protect the tool magazine, when the tool needs to be changed, the protection mechanism is opened, and the spindle mechanism moves to the tool changing entrance to change the tool. After the tool changing action is completed, the spindle mechanism withdraws and the protection mechanism closes the tool changing entrance, thereby preventing impurities such as iron chips and cutting fluid generated by machining from splashing into the tool magazine, and preventing the various components in the tool magazine from rusting and getting stuck, better protecting the internal tool magazine and tools, reducing the failure rate, extending the service life of the tool magazine and tools, and ensuring that there will be no defects in subsequent processed products due to iron chips and foreign matter adhering to the tools.

[0033] The present invention is not limited to the above-mentioned embodiments. Other applications for multi-station CNC machine tools obtained by using the same or similar structures or devices as the above-mentioned embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A multi-station CNC machine tool, characterized in that: The multi-station CNC machine tool includes a base and a workbench, a mounting frame and more than two processing mechanisms arranged on the base; the workbench is arranged in front of the base, the mounting frame is arranged behind the workbench, and the processing mechanism is arranged in the mounting frame; the mounting frame is provided with more than two tool magazines, and the tool magazines are provided with protection mechanisms; the processing mechanisms include moving mechanisms and spindle mechanisms, and the moving mechanisms include X-axis moving mechanisms, Y-axis moving mechanisms and Z-axis moving mechanisms, the X-axis moving mechanism is arranged on the base in a horizontal manner, the Y-axis moving mechanism is arranged on the moving end of the X-axis moving mechanism in a longitudinal manner, the Z-axis moving mechanism is arranged on the Y-axis moving mechanism, and the spindle mechanism is arranged on the moving end of the Z-axis moving mechanism; the workbench is also provided with more than two multi-axis clamping platforms.

2. The multi-station CNC machine tool according to claim 1, characterized in that: A gantry is provided at the rear of the base, the gantry is provided with a groove, the gantry is provided with two transversely arranged slide rails, the X-axis moving mechanisms include a first servo motor, a first screw assembly and a first slide, the first servo motor is connected to the first screw assembly and is arranged in the groove, a slider group is provided at the bottom of the first slide, the slider group is respectively arranged on the slide rails, the first screw assembly is also provided with a first nut seat, and the first nut seat is fixedly connected to the bottom of the first slide.

3. The multi-station CNC machine tool according to claim 2, characterized in that: The Y-axis moving mechanism is arranged on the first slide, and the first slide is provided with a groove 1. The Y-axis moving mechanism includes a second servo motor, a second screw assembly and a second slide, the second servo motor is connected to the second screw assembly and is arranged in the groove of the first slide, the second slide is provided with two second slide rails, the second slide rails are provided with a plurality of second sliders, and the plurality of second sliders are fixed on the first slide; the second screw assembly is provided with a second nut seat, and the second nut seat is fixedly connected to the second slide; the second slide is provided with a saddle.

4. The multi-station CNC machine tool according to claim 3, characterized in that: The Z-axis moving mechanism is arranged at the end of the saddle; the Z-axis moving mechanism includes a third servo motor, a third screw assembly and a third slide, the third servo motor is connected to the third screw assembly and is vertically arranged on the saddle; the third slide is provided with a plurality of third slide rails, and the third slide rails are provided with a plurality of third sliders, and the plurality of third sliders are fixed on the end face of the saddle; the third screw assembly is provided with a third nut seat, and the third nut seat is fixedly connected to the third slide; the third slide is provided with a mounting seat, and the spindle mechanism is arranged on the mounting seat.

5. The multi-station CNC machine tool according to claim 4, characterized in that: The spindle mechanism comprises a fourth motor and a tool chuck, wherein the tool chuck is arranged on the driving end of the fourth motor; the tool chuck is provided with a clamp mechanism, and the clamp mechanism is used to fix or release the tool.

6. The multi-station CNC machine tool according to claim 5, characterized in that: The tool magazine is a flying saucer type tool magazine, the tool magazine is provided with a fixed bracket, the fixed bracket is fixed on the mounting frame, the tool magazine is provided with a plurality of tool clamps arranged in an array; the protection mechanism includes an outer cover and two box doors, a tool changing entrance is provided between the two box doors, one of the box doors is provided with a cylinder, a baffle is provided at the driving end of the cylinder, and the baffle is used to close the tool changing entrance for protection during operation.

7. The multi-station CNC machine tool according to claim 6, characterized in that: The multi-axis clamping platform and the workbench are detachably connected, and the multi-axis clamping platform includes an angle rotation mechanism and a plane rotation mechanism, and the plane rotation mechanism is arranged on the angle rotation mechanism; the angle rotation mechanism includes a driving component and a platform one, and the platform one is connected to the driving component one; the platform one is provided with a mounting hole, and the plane rotation mechanism is arranged in the mounting hole; the plane rotation mechanism includes a rotating motor two and a platform two, and the platform two is arranged on the driving end of the rotating motor two, and the platform two is provided with a plurality of mounting grooves arranged in a circular array.

8. The multi-station CNC machine tool according to claim 7, characterized in that: The base is also provided with a cutting fluid diversion inclined surface.

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