A multi-axis vertical turning, grinding and milling compound CNC machine tool

Abstract

The present invention relates to the technical field of compound CNC machine tools, specifically a multi-axis vertical turning, grinding and milling compound CNC machine tool, which solves the problem that CNC machine tools, CNC lathes or grinders can only perform single-process processing, and the workpiece needs to be moved between different machine tools when grinding, turning and milling the same workpiece, which takes a lot of time and reduces the processing efficiency of the workpiece. A multi-axis vertical turning, grinding and milling compound CNC machine tool includes a fixed seat, a machine tool chassis is fixed to the rear end of the fixed seat, a lifting mechanism is installed on the front surface of the machine tool chassis, a transverse moving mechanism is installed on the front surface of the lifting mechanism, a lifting spindle is installed on the front surface of the transverse moving mechanism, a grinding wheel is installed on the bottom of the transverse moving mechanism, and two symmetrically distributed storage slots are provided on the upper surface of the fixed seat. The present invention completes processing of different processes through a single CNC machine tool without transferring the workpiece, saving workpiece transfer time and improving workpiece processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control machine tools, in particular to a multi-axis vertical turning, grinding and milling compound numerical control machine tool. Background Art

[0002] CNC machine tool is the abbreviation of digitally controlled machine tool. It is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process parts according to the shape and size required by the drawing.

[0003] However, existing CNC machine tools, CNC lathes or grinders can only perform single-process processing. When grinding, turning and milling the same workpiece, the workpiece needs to be moved between different machine tools, which takes a lot of time and reduces the processing efficiency of the workpiece. Therefore, it does not meet the existing needs. In this regard, we propose a multi-axis vertical turning, grinding and milling composite CNC machine tool. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-axis vertical turning, grinding and milling compound CNC machine tool to solve the problems proposed in the above background technology that the CNC machine tools, CNC lathes or grinders can only perform single-process processing, and when grinding, turning and milling the same workpiece, the workpiece needs to be moved between different machine tools, which takes a lot of time and reduces the processing efficiency of the workpiece.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-axis vertical turning, grinding and milling compound CNC machine tool, comprising a fixed seat, a machine tool chassis is fixed to the rear end of the fixed seat, a lifting mechanism is installed on the front surface of the machine tool chassis, a lateral moving mechanism is installed on the front surface of the lifting mechanism, a lifting spindle is installed on the front surface of the lateral moving mechanism, a grinding wheel is installed on the bottom of the lateral moving mechanism, two symmetrically distributed storage grooves are provided on the upper surface of the fixed seat, an adjustable processing table is installed on the top of the storage groove, the adjustable processing table comprises a first rotating connecting plate, a second rotating connecting plate and a moving slide plate, a positioning shaft rod is inserted through one end of the first rotating connecting plate, and both ends of the positioning shaft rod are rotatably inserted into the fixed seat, and the first rotating connecting plate is provided. The other end of the connecting plate is penetrated and inserted with a third connecting shaft, and both ends of the second rotating connecting plate are penetrated and inserted with the first connecting shaft, and the two outer sides of the two first connecting shafts are rotatably installed with a rotating connecting piece, and the end of the movable slide close to the second rotating connecting plate is penetrated and inserted with the second connecting shaft, wherein one end of the two rotating connecting pieces is penetrated by the end of the second connecting shaft and rotatably connected to the second connecting shaft, and one end of the other two rotating connecting pieces is penetrated by the third connecting shaft and rotatably connected to the third connecting shaft, and a milling processing seat is fixed on the upper surface of the second rotating connecting plate, and a three-jaw chuck mounting seat is detachably installed on one end of the milling processing seat, and a rotatable three-jaw chuck is installed on the upper surface of the three-jaw chuck mounting seat.

[0006] Preferably, the surface of the milling processing seat is provided with a plurality of T-shaped guide grooves parallel to each other, and the two ends of the T-shaped guide grooves are flush with the ends of the milling processing seat. The surface of the three-jaw chuck mounting seat in contact with the milling processing seat is fixed with a plurality of T-shaped support bars linearly arranged along the length direction of the three-jaw chuck mounting seat, and the T-shaped support bars are slidably clamped on the inner side of the T-shaped guide groove.

[0007] Preferably, two symmetrically distributed support bars are fixed to the inner side of one end of the T-shaped guide groove, and the gap between the two symmetrical support bars is half of the width of the top of the T-shaped guide groove.

[0008] Preferably, threaded holes are provided on both sides of the end of the milling processing seat on which the T-shaped support bar is installed, and a pressure plate is detachably installed on the outer side of this end of the milling processing seat, and fastening screws are inserted through both ends of the pressure plate, and the ends of the fastening screws are screwed into the inner side of the threaded hole through threads.

[0009] Preferably, a plurality of T-shaped filling blocks are fixed to the surface of the pressing plate that is in contact with the end of the milling seat, and the T-shaped support bar is clamped on the inner side of the T-shaped guide groove and contacts the end of the T-shaped support bar.

[0010] Preferably, a drainage groove is provided on the bottom surface of the storage tank, and the drainage groove passes through the fixing seat and has a bottom facing vertically downward.

[0011] Preferably, the bottom surface of the storage tank is further provided with two baffles, which are fixed to the fixing seat and the ends of which are in contact with the side walls of the storage tank, and the top of one of the baffles is provided with a drainage surface with an inclination angle of forty-five degrees.

[0012] Preferably, a limit plate is slidably installed between the two baffles, and a plurality of circular holes are provided at the bottom of the limit plate, and the circular holes are linearly arrayed along the length direction of the baffle.

[0013] Preferably, a limit spring is installed inside the circular hole, and the top end of the limit spring is fixed to the inner end surface of the circular hole.

[0014] Preferably, two symmetrically distributed guide slots are provided on the top of the storage slot, a guide slide is inserted through the interior of the rotating connecting piece, and both ends of the guide slide are slidably engaged in the guide slots.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention fixes the workpiece by using a milling seat and performs milling processing on the workpiece through a lifting spindle, or performs grinding processing by a grinding wheel, while a three-jaw chuck can fix the end of the workpiece and perform turning processing through a lifting spindle. Different processing steps can be completed by a CNC machine tool without transferring the workpiece, saving workpiece transfer time and improving workpiece processing efficiency;

[0017] 2. The present invention moves the movable slide to rotate the first and second rotating connecting plates, thereby making the first and second rotating connecting plates flush with the surface of the fixed seat or the first and second rotating connecting plates abut against each other and be perpendicular to the fixed seat, thereby changing the position of the milling seat and the three-jaw chuck, thereby changing the operating mode of the machine tool and performing milling, grinding or turning on the workpiece;

[0018] 3. In the present invention, after the first rotating connecting plate and the second rotating connecting plate are fitted together, the limit spring elastically recovers and lifts up the limit plate, and the position of the end of the movable slide is limited by the limit plate, thereby ensuring that after the milling processing seat is erected, the first rotating connecting plate, the second rotating connecting plate and the movable slide will not slide or shake, thereby ensuring safety during the extension process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0020] Figure 2 for Figure 1 A magnified view of the structure at point A;

[0021] Figure 3This is a schematic diagram of the state conversion of the adjustable processing table of the present invention;

[0022] Figure 4 for Figure 3 A magnified view of the structure at B in the middle;

[0023] Figure 5 This is a schematic diagram of the connection between the first rotating connecting plate, the second rotating connecting plate and the movable slide plate of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the milling processing seat of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection between the support bar and the T-shaped guide groove of the present invention;

[0026] Figure 8 It is a partial structural cross-sectional view of the fixing seat of the present invention;

[0027] Figure 9 for Figure 8 Enlarged view of the structure at point C in the middle.

[0028] In the figure: 1. Fixed base; 2. Machine tool chassis; 3. Transverse movement mechanism; 4. Lifting mechanism; 5. Lifting spindle; 6. Adjustable processing table; 601. First rotating connecting plate; 602. Moving slide; 603. Milling base; 604. Three-jaw chuck; 605. Pressing plate; 606. Fastening screw; 607. Support bar; 608. Second rotating connecting plate; 609. Guide slide; 610. Three-jaw chuck mounting base. 611. First connecting shaft; 612. Rotating connecting piece; 613. Second connecting shaft; 614. Positioning shaft; 615. T-shaped filling block; 616. T-shaped support bar; 617. T-shaped guide groove; 618. Third connecting shaft; 619. Threaded hole; 7. Grinding wheel; 8. Storage groove; 9. Guide slide; 10. Baffle; 11. Limit plate; 12. Drain trough; 13. Limit spring; 14. Drainage surface. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] like Figure 1 and Figure 3As shown, a multi-axis vertical turning, grinding and milling compound CNC machine tool includes a fixed base 1, a machine tool chassis 2 is fixed to the rear end of the fixed base 1, a lifting mechanism 4 is installed on the front surface of the machine tool chassis 2, a horizontal movement mechanism 3 is installed on the front surface of the lifting mechanism 4, a lifting spindle 5 is installed on the front surface of the horizontal movement mechanism 3, a grinding wheel 7 is installed on the bottom of the horizontal movement mechanism 3, and two symmetrically distributed storage grooves 8 are opened on the upper surface of the fixed base 1, and an adjustable processing table 6 is installed on the top of the storage groove 8.

[0031] like Figures 1 to 7 The adjustable processing table 6 includes a first rotating connecting plate 601, a second rotating connecting plate 608 and a movable slide 602. One end of the first rotating connecting plate 601 is penetrated and plugged with a positioning shaft 614. The two ends of the positioning shaft 614 are rotatably plugged into the interior of the fixed seat 1. The other end of the first rotating connecting plate 601 is penetrated and plugged with a third connecting shaft 618. Both ends of the second rotating connecting plate 608 are penetrated and plugged with a first connecting shaft 611. The outer sides of the two ends of the two first connecting shafts 611 are rotatably installed with rotating connecting pieces 612. The end of the movable slide 602 close to the second rotating connecting plate 608 is penetrated and plugged with a second connecting shaft 613, wherein one end of the two rotating connecting pieces 612 is penetrated by the end of the second connecting shaft 613 and rotates with the second connecting shaft 613. The third connecting shaft 618 is connected to the workpiece, and one end of the other two rotating connecting pieces 612 is penetrated by the third connecting shaft 618 and is rotatably connected to the third connecting shaft 618. The upper surface of the second rotating connecting plate 608 is fixed with a milling processing seat 603, and one end of the milling processing seat 603 is detachably installed with a three-jaw chuck mounting seat 610. The upper surface of the three-jaw chuck mounting seat 610 is installed with a rotatable three-jaw chuck 604. The milling processing seat 603 is used to fix the workpiece and the workpiece is milled by the lifting spindle 5, or it is ground by the grinding wheel 7. The three-jaw chuck 604 can fix the end of the workpiece and turn it by the lifting spindle 5. Different processing steps can be completed by one CNC machine tool without transferring the workpiece, saving the workpiece transfer time and improving the processing efficiency of the workpiece.

[0032] The surface of the milling processing seat 603 is provided with a plurality of T-shaped guide grooves 617 parallel to each other, and the two ends of the T-shaped guide grooves 617 are flush with the ends of the milling processing seat 603. The surface of the three-jaw chuck mounting seat 610 in contact with the milling processing seat 603 is fixed with a plurality of T-shaped support bars 616 linearly arranged along the length direction of the three-jaw chuck mounting seat 610, and the T-shaped support bar 616 is slidably clamped in the inner side of the T-shaped guide groove 617, and two symmetrically distributed support bars 607 are fixed on the inner side of one end of the T-shaped guide groove 617, and the gap between the two symmetrical support bars 607 is half the width of the top of the T-shaped guide groove 617. The support bar 607 is used to support the T-shaped support bar 616 clamped in the inner side of the T-shaped guide groove 617, so as to ensure that the three-jaw chuck mounting seat 610, the T-shaped support bar 616 and the three-jaw chuck 604 will not slide downward after the milling processing seat 603 is erected, thereby ensuring the safety of the machine tool during use.

[0033] The milling seat 603 is equipped with a T-shaped support bar 616, and threaded holes 619 are provided on both sides of the end. A pressure plate 605 is detachably installed on the outer side of this end of the milling seat 603. Fastening screws 606 are inserted through both ends of the pressure plate 605. The ends of the fastening screws 606 are screwed into the inner sides of the threaded holes 619 through threads. A plurality of T-shaped filling blocks 615 are fixed on the surface of the pressure plate 605 that fits the end of the milling seat 603. The T-shaped support bar 616 is clamped on the inner side of the T-shaped guide groove 617 and contacts the end of the T-shaped support bar 616. The pressure plate 605 and the T-shaped filling block 615 are used to limit the end of the T-shaped support bar 616 clamped on the inner side of the T-shaped guide groove 617, so as to ensure that the T-shaped support bar 616 will not slide or shake in the inner side of the T-shaped guide groove 617.

[0034] Two symmetrically distributed guide grooves 9 are provided on the top of the storage groove 8. A guide slide 609 is inserted through the interior of the rotating connecting piece 612. The two ends of the guide slide 609 are slidably engaged in the guide groove 9. The movement of the movable slide 602 is guided by the guide slide 609, and it is ensured that the movable slide 602, the second rotating connecting plate 608, and the first rotating connecting plate 601 will not collapse into the storage groove 8 due to the gravity of the milling processing seat 603.

[0035] like Figure 8 and Figure 9 As shown, a drainage groove 12 is provided on the bottom surface of the storage tank 8. The drainage groove 12 passes through the fixing seat 1 and the bottom is vertically downward. The coolant entering the storage tank 8 is discharged through the drainage groove 12 on the bottom surface of the storage tank 8 to avoid water accumulation inside the storage tank 8.

[0036] The bottom surface of the storage groove 8 is also provided with two baffles 10, which are fixed to the fixed seat 1 and the ends are in contact with the side walls of the storage groove 8. The top of one of the baffles 10 is provided with a drainage surface 14 with an inclination angle of forty-five degrees. A limit plate 11 is slidably installed between the two baffles 10. The bottom of the limit plate 11 is provided with a plurality of circular holes, and the circular holes are linearly arrayed along the length direction of the baffle 10. A limit spring 13 is installed on the inside of the circular hole, and the top of the limit spring 13 is fixed to the inner end face of the circular hole. After the first rotating connecting plate 601 and the second rotating connecting plate 608 are in contact with each other, the limit spring 13 elastically recovers and lifts up the limit plate 11, and the position of the end of the movable slide 602 is limited by the limit plate 11, thereby ensuring that after the milling processing seat 603 is erected, the first rotating connecting plate 601, the second rotating connecting plate 608 and the movable slide 602 will not slide or shake, thereby ensuring safety during the elongation process.

[0037] Working principle: When using a multi-axis vertical turning, grinding and milling compound CNC machine tool to grind or mill a workpiece, first place the workpiece on the surface of the milling seat 603. At this time, the upper surface of the milling seat 603 is parallel to the upper surface of the fixed seat 1. The workpiece is leveled and the coordinate positioning operations are performed. Then, the workpiece is pressed by a clamping tool. Then, the machine tool power is turned on. After the power is turned on, when the workpiece is ground, the lifting mechanism 4 drives the transverse moving mechanism 3 and the grinding wheel 7 to rise, so that the bottom of the grinding wheel 7 is higher than the upper surface of the workpiece. Then, the grinding wheel 7 is moved above the workpiece, and the transverse moving mechanism 3 is controlled to descend by the lifting mechanism 4 until the bottom of the grinding wheel 7 is flush with the upper surface of the workpiece. Then, the grinding wheel 7 is driven to move back and forth by the transverse moving mechanism 3, so that the grinding wheel 7 and the workpiece are in reciprocating sliding contact, thereby grinding the workpiece;

[0038] When milling a workpiece, the milling tool installed at the bottom of the lifting spindle 5 is used to feed the workpiece from the tool position preset by the program. During the milling process, the lifting spindle 5 can be raised and lowered to control the milling position of the tool at the bottom of the lifting spindle 5.

[0039] When turning the workpiece, the movable slide 602 is pushed to move toward the first rotating connecting plate 601. When the movable slide 602 slides, it squeezes the second rotating connecting plate 608 and the first rotating connecting plate 601. Since the first rotating connecting plate 601 and the second rotating connecting plate 608 are rotatably connected through the first connecting shaft 611, the rotating connecting piece 612 and the third connecting shaft 618, the first rotating connecting plate 601 rotates upward around the axis of the positioning shaft 614. At the same time, the end of the second rotating connecting plate 608 connected to the first rotating connecting plate 601 moves upward when the first rotating connecting plate 601 rotates, and the end of the second rotating connecting plate 608 connected to the rotating connecting piece 612 rotates around the axis of the first connecting shaft 611, and the first connecting shaft 611 rotates around the axis of the second connecting shaft 613. At this time, the first rotating connecting plate 601 and the second rotating connecting plate 608 gradually change from a horizontal state to a vertical state until the first rotating connecting plate 601 and the second rotating connecting plate 608 are in contact with each other.

[0040] After the first rotating connecting plate 601 and the second rotating connecting plate 608 are fitted together, the limit spring 13 elastically recovers and pushes the limit plate 11 upward, so that the top of the limit plate 11 is flush with the upper surface of the fixed seat 1. At this time, the end of the movable slide 602 contacts the limit plate 11, and the position of the movable slide 602 is limited by the limit plate 11, so that the movable slide 602, the first rotating connecting plate 601, and the second rotating connecting plate 608 cannot be reset without external force intervention. Then the workpiece is clamped between the three-jaw chuck 604 with two overlapping axes, and the workpiece can be turned. Different processing steps can be completed by one CNC machine tool without transferring the workpiece, saving workpiece transfer time and improving workpiece processing efficiency.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A multi-axis vertical turning, grinding and milling compound CNC machine tool, comprising a fixed base (1), a machine tool chassis (2) fixed to the rear end of the fixed base (1), a lifting mechanism (4) installed on the front surface of the machine tool chassis (2), a transverse moving mechanism (3) installed on the front surface of the lifting mechanism (4), a lifting spindle (5) installed on the front surface of the transverse moving mechanism (3), and a grinding wheel (7) installed on the bottom of the transverse moving mechanism (3), characterized in that: The upper surface of the fixed seat (1) is provided with two symmetrically distributed receiving grooves (8), and an adjustable processing table (6) is installed on the top of the receiving groove (8), and the adjustable processing table (6) includes a first rotating connecting plate (601), a second rotating connecting plate (608) and a movable slide (602), one end of the first rotating connecting plate (601) is penetrated and plugged with a positioning shaft (614), and both ends of the positioning shaft (614) are rotatably plugged into the inside of the fixed seat (1), the other end of the first rotating connecting plate (601) is penetrated and plugged with a third connecting shaft (618), both ends of the second rotating connecting plate (608) are penetrated and plugged with a first connecting shaft (611), and both ends of the first connecting shaft (611) are rotatably installed on the outer sides. A connecting plate (612), the end of the movable slide (602) close to the second rotating connecting plate (608) is penetrated and plugged with a second connecting shaft (613), wherein one end of the two rotating connecting plates (612) is penetrated by the end of the second connecting shaft (613) and is rotatably connected to the second connecting shaft (613), and one end of the other two rotating connecting plates (612) is penetrated by the third connecting shaft (618) and is rotatably connected to the third connecting shaft (618), a milling processing seat (603) is fixed on the upper surface of the second rotating connecting plate (608), one end of the milling processing seat (603) is detachably mounted with a three-jaw chuck mounting seat (610), and a rotatable three-jaw chuck (604) is mounted on the upper surface of the three-jaw chuck mounting seat (610).

2. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 1, characterized in that: The surface of the milling processing seat (603) is provided with a plurality of mutually parallel T-shaped guide grooves (617), and the two ends of the T-shaped guide grooves (617) are flush with the ends of the milling processing seat (603). The surface of the three-jaw chuck mounting seat (610) in contact with the milling processing seat (603) is fixed with a plurality of T-shaped support bars (616) linearly arranged along the length direction of the three-jaw chuck mounting seat (610), and the T-shaped support bars (616) are slidably engaged with the inner side of the T-shaped guide groove (617).

3. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 2, characterized in that: Two symmetrically distributed support bars (607) are fixed to the inner side of one end of the T-shaped guide groove (617), and the gap between the two symmetrical support bars (607) is half the width of the top of the T-shaped guide groove (617).

4. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 3, characterized in that: The milling processing seat (603) is provided with a threaded hole (619) on both sides of the end portion of the T-shaped support bar (616). A pressure plate (605) is detachably installed on the outer side of this end portion of the milling processing seat (603). Both ends of the pressure plate (605) are penetrated and inserted with a fastening screw (606). The end portion of the fastening screw (606) is screwed into the inner side of the threaded hole (619) through a thread.

5. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 4, characterized in that: A plurality of T-shaped filling blocks (615) are fixed to the surface of the pressing plate (605) that abuts against the end of the milling seat (603), and the T-shaped support bar (616) is clamped on the inner side of the T-shaped guide groove (617) and contacts the end of the T-shaped support bar (616).

6. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 1, characterized in that: A drainage groove (12) is provided on the bottom surface of the receiving groove (8), and the drainage groove (12) passes through the fixing seat (1) and has a bottom facing vertically downward.

7. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 1, characterized in that: The bottom surface of the receiving groove (8) is further provided with two baffles (10), which are fixed to the fixing seat (1) and whose ends are in contact with the side walls of the receiving groove (8), and the top of one of the baffles (10) is provided with a drainage surface (14) with an inclination angle of forty-five degrees.

8. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 7, characterized in that: A limiting plate (11) is slidably mounted between the two baffles (10), and a plurality of circular holes are provided at the bottom of the limiting plate (11), and the circular holes are arranged in a linear array along the length direction of the baffle (10).

9. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 8, characterized in that: A limit spring (13) is installed inside the circular hole, and the top end of the limit spring (13) is fixed to the inner end surface of the circular hole.

10. The multi-axis vertical turning, grinding and milling compound CNC machine tool according to claim 1, characterized in that: Two symmetrically distributed guide slots (9) are provided on the top of the receiving slot (8), a guide slide plate (609) is inserted through the interior of the rotating connecting piece (612), and both ends of the guide slide plate (609) are slidably engaged in the interior of the guide slots (9).

Images