Workbench of vertical turning and milling composite machine tool

Abstract

The utility model provides a vertical turning and milling combined machine tool workbench. The vertical turning and milling combined machine tool workbench comprises a basic platform, a rotating platform, a lead screw assembly and a rotating driving assembly. The foundation platform is a rectangular platform, the foundation platform is driven by a lead screw assembly to do linear reciprocating motion, and an assembling round hole and a plurality of arc long holes concentric with the assembling round hole are formed in the foundation platform and correspond to the rotating platform; the rotating platform comprises a circular platform and a plurality of arc supporting parts concentric with the circular platform, the circular platform is rotatably installed in the assembling circular hole, the arc supporting parts are installed in the arc long holes, and the upper surface of the rotating platform is flush with the upper surface of the basic platform; the disc base table is driven by a rotary driving assembly to rotate; a plurality of assembling holes are formed in the upper surfaces of the circular platform and the arc supporting part. The workbench has the advantages that the fixing requirement of a larger area can be met, and the machining stability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe technical field, specifically speaking, relates to a vertical turning and milling combined machine tool workbench. BACKGROUND

[0002] In order to realize the machining of workpieces in multiple positions, the common vertical turning and milling combined machine tool is often provided with double-head structure, that is, a set of tool rest assembly is arranged on each side of the workbench, and the workpiece moves left and right on the workbench, approaches different tool rests and completes the machining of each 50% space.

[0003] This form of machine tool can solve the machining demand of most workpieces, but a small amount of workpieces are difficult to effectively cover all machining areas.

[0004] Based on the above reasons, some manufacturers have continued to develop a workbench with a rotating station at the center, and the area where the workpiece is installed is designed to be rotatable to solve the problem of dead angles in the machining process, so that the machining demand of most workpieces can be met.

[0005] But it still has some disadvantages, the space occupied by the rotating workbench at the center is limited, when the volume of the workpiece is large and the occupied area exceeds the range of the rotating workbench, the installation and fixation will cause problems.

[0006] In order to solve this problem, it is necessary to continue to improve such workbench to meet more rotating machining requirements. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at the deficiency of prior art, and provides a vertical turning and milling combined machine tool workbench which can provide larger area of fixation demand and has guaranteed machining stability.

[0008] In order to achieve the above purpose, the utility model adopts the technical scheme of a vertical turning and milling combined machine tool workbench, which comprises a base platform, a rotating platform, a lead screw assembly and a rotating drive assembly.

[0009] The base platform is a rectangular platform, the base platform is driven by the lead screw assembly to make linear reciprocating motion, and the base platform is provided with an assembly round hole and a plurality of arc long holes concentric with the assembly round hole corresponding to the rotating platform;

[0010] The rotating platform comprises a circular platform and a plurality of arc support portions concentric with the circular platform, the size of the circular platform is the same as that of the assembly round hole, the radius of the arc support portion is the same as that of the arc long hole, the arc length of the arc support portion is less than that of the arc long hole, the circular platform is rotatably installed in the assembly round hole, each arc support portion is installed in each arc long hole, and the upper surface of the rotating platform is flush with the upper surface of the base platform.

[0011] The bottom ends of the circular platform and the arc support part are jointly installed on a disc base, which is driven to rotate by the rotation driving assembly.

[0012] The upper surfaces of the circular platform and the arc support part are provided with a plurality of assembly holes.

[0013] The rotation driving assembly is installed on the slider of the lead screw assembly or the bottom end of the base platform.

[0014] Preferably, the circular platform and the disc base are integrally formed as a convex structure.

[0015] Preferably, the arc support part is an arc-shaped column fixedly welded to the disc base.

[0016] Preferably, the number of the arc support parts is four, and the included angle between adjacent arc support parts is 90 degrees.

[0017] As mentioned above, the upper surface of the base platform is provided with a plurality of trapezoidal grooves.

[0018] Preferably, the outer circumferential surface of the disc base is a tooth surface, the rotation driving assembly comprises a speed reducer motor and a gear set, the speed reducer motor and the gear set are installed on the bottom of the base platform or the slider, and the gear set is used to engage with the tooth surface of the disc base.

[0019] Preferably, the base platform and the rotation platform are both stainless steel platforms.

[0020] Preferably, the lead screw assembly comprises a rack, a lead screw motor, a transmission lead screw, a slider and a guide rail installed based on the rack, the lead screw motor drives the transmission lead screw to rotate, the slider is threadedly connected with the transmission lead screw, the slider is fixed with the base platform, and the two ends of the base platform are slidably connected with the guide rail.

[0021] Preferably, a limit switch is arranged on the rack corresponding to the lead screw assembly.

[0022] Preferably, a rotation limit switch is arranged on the arc-shaped long hole or the base platform corresponding to the rotation platform.

[0023] The present invention has substantial features and progress compared to the prior art. Specifically, the present invention is based on the current situation that the existing rotating platform design is usually relatively small and is improved. Since the area of ​​the rotating platform is directly enlarged, problems with assembly accuracy will arise, and it is difficult to ensure the stable operation of the rotating platform. This is also the reason why the rotating platform is designed to be relatively small in the prior art. On this basis, the present application does not directly enlarge the area of ​​the rotating platform, but based on the structural form of the rotating platform, adds an arc support part at a larger radius and correspondingly adds an arc long hole on the base platform. Under this design situation, the matching surfaces of the arc support part and the arc long hole, the circular platform and the assembly circular hole have multiple arc surfaces, which can limit each other, play the role of rotation guidance and constraint, and ensure that the rotation of the rotating platform is more stable.

[0024] When the volume of the processed parts is too large, it is only necessary to fix the parts that extend beyond the circular platform to one or more of the arc supports. The effect is equivalent to directly increasing the area of ​​the rotating platform, thereby ensuring the installation stability of large-volume workpieces or special-shaped parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a schematic diagram of the overall structure of a vertical turning and milling compound machine tool workbench.

[0026] Figure 2 The utility model is a top view of a vertical turning and milling compound machine tool workbench.

[0027] Figure 3 The utility model is a bottom view of a vertical turning and milling compound machine tool workbench.

[0028] Figure 4 It is a structural diagram of the rotating platform in the utility model.

[0029] Figure 5 It is a structural diagram of the basic platform in the utility model.

[0030] In the figure: 1. Base platform; 2. Rotating platform; 3. Screw assembly; 4. Rotating drive assembly; 11. Assembly circular hole; 12. Arc long hole; 13. Trapezoidal groove; 21. Circular platform; 22. Arc support; 23. Disc base; 24. Assembly hole; 31. Frame; 32. Screw motor; 33. Drive screw; 34. Slider; 35. Guide rail; 41. Gear set. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0032] like Figures 1-5As shown, a vertical turning-milling compound machine tool workbench includes a basic platform 1, a rotating platform 2, a screw assembly 3 and a rotating drive assembly 4.

[0033] The basic platform 1 is a rectangular platform, which is driven by a screw assembly to perform linear reciprocating motion. The basic platform 1 is provided with an assembly circular hole 11 and several arc long holes 12 concentric with the assembly circular hole corresponding to the rotating platform. The upper surface of the basic platform 1 is provided with several trapezoidal grooves 13.

[0034] Specifically, the screw assembly 3 includes a frame 31 and a screw motor 32, a transmission screw 33, a slider 34, and a guide rail 35 mounted on the frame. The screw motor 32 drives the transmission screw 33 to rotate. The slider 34 is threadedly engaged with the transmission screw 33. The slider 34 is fixed to the base platform 1, and both ends of the base platform 1 are slidably engaged with the guide rail 35. A limit switch is provided on the frame 31 corresponding to the screw assembly.

[0035] The rotating platform 2 includes a circular platform 21 and several arc support parts 22 concentric with the circular platform. Specifically, in this embodiment, the bottom ends of the circular platform 21 and the arc support parts 22 are jointly installed on a disc base 23, and the disc base 23 is driven to rotate by the rotating drive assembly 4.

[0036] The base platform 1 and the rotating platform 2 are both stainless steel platforms.

[0037] The size of the circular platform 21 is the same as the size of the assembly circular hole 11, the radius of the arc support part 22 is the same as the radius of the arc long hole 12, the arc length of the arc support part 22 is smaller than the arc length of the arc long hole 12, the circular platform 21 can be rotatably installed in the assembly circular hole 11, each arc support part 22 is installed in each arc long hole 12, and the upper surface of the rotating platform 2 is flush with the upper surface of the base platform 1.

[0038] A plurality of assembly holes 24 are provided on the upper surfaces of the circular platform 21 and the arc support portion 22. The main function of the assembly holes 24 is to lock the workpiece to be processed. The forms of the assembly holes are relatively diverse and are usually designed as threaded holes.

[0039] The rotary drive assembly 4 is mounted on the slider of the screw assembly 3 or the bottom end of the base platform 1. In this embodiment, the outer circumferential surface of the disc base 23 is a toothed surface. The rotary drive assembly 4 includes a reduction motor (not shown) and a gear set 41. The reduction motor and gear set 41 are mounted on the bottom of the base platform. The gear set 41 is used to mesh with the toothed surface of the disc base 23 to drive the disc base 23 to rotate. A rotation limit switch is provided on the arc slot or the base platform corresponding to the rotary platform.

[0040] To further ensure stability, in a preferred embodiment, the circular platform and the disc base are an integrally formed boss structure, and the arc support portion is an arc-shaped column welded and fixed to the disc base.

[0041] In this embodiment, the number of the arc support portions is 4, and the angle between adjacent arc support portions is 90 degrees.

[0042] Working principle description:

[0043] This application essentially expands the effective support area of ​​the circular platform 21 , but does not simply expand the physical area of ​​the circular platform 21 .

[0044] If the physical area of ​​the circular platform 21 is directly expanded, the weight of the circular platform 21 will increase significantly. However, it needs to be installed based on the basic platform, and there are relatively few constraint structures for the rotation movement. Once the weight distribution is uneven, it may be biased.

[0045] The present application utilizes an arc support portion 22 to replace a directly enlarged circular platform, which is equivalent to a weight-reducing design. The effective supporting portion of the larger circular platform is retained, and other portions are deleted to ensure rotational stability.

[0046] When a larger workpiece is installed beyond the support range of the circular platform, it can be partially supported on the outer arc support portion 22 through a connecting piece and fixed through the assembly hole 24, thereby expanding the effective support area of ​​the rotating platform 2.

[0047] Finally, it should be noted that: The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A vertical turning and milling machine tool workbench, characterized by: Includes a basic platform, a rotating platform, a lead screw assembly and a rotating drive assembly; The basic platform is a rectangular platform, which is driven by a screw assembly to perform linear reciprocating motion. A mounting circular hole and a plurality of arc long holes concentric with the mounting circular hole are provided on the basic platform corresponding to the rotating platform; The rotating platform includes a circular platform and a plurality of arc support portions concentric with the circular platform. The size of the circular platform is the same as the size of the assembly circular hole. The radius of the arc support portion is the same as the radius of the arc long hole. The arc length of the arc support portion is smaller than the arc length of the arc long hole. The circular platform is rotatably installed in the assembly circular hole. Each of the arc support portions is installed in each of the arc long holes. The upper surface of the rotating platform is flush with the upper surface of the base platform. The bottom ends of the circular platform and the arc support portion are mounted together on a disc base, and the disc base is driven to rotate by the rotary drive assembly; The upper surfaces of the circular platform and the arc support portion are provided with a plurality of assembly holes; The rotary drive assembly is mounted on the slider of the lead screw assembly or the bottom end of the base platform.

2. The vertical turning-milling compound machine tool workbench according to claim 1, characterized in that: The circular platform and the disc base are an integrally formed boss structure.

3. The vertical turning-milling compound machine tool workbench according to claim 2, characterized in that: The arc support portion is an arc-shaped column welded and fixed on the disc base.

4. The vertical turning-milling compound machine tool workbench according to claim 3, characterized in that: The number of the arc support parts is 4, and the angle between adjacent arc support parts is 90 degrees.

5. The vertical turning-milling compound machine tool workbench according to claim 2 or 4, characterized in that: A plurality of trapezoidal grooves are provided on the upper surface of the basic platform.

6. The vertical turning-milling machine tool workbench according to claim 5, characterized in that: The outer peripheral surface of the disc base is a tooth surface, and the rotation drive assembly includes a reduction motor and a gear set, which are installed at the bottom of the base platform or on the slider, and the gear set is used to engage with the tooth surface of the disc base.

7. The vertical turning-milling compound machine tool workbench according to claim 6, characterized in that: The basic platform and the rotating platform are both stainless steel platforms.

8. The vertical turning-milling compound machine tool workbench according to claim 7, characterized in that: The screw assembly includes a frame and a screw motor, a transmission screw, a slider and a guide rail installed based on the frame. The screw motor drives the transmission screw to rotate, the slider is threadedly engaged with the transmission screw, the slider is fixed to the base platform, and both ends of the base platform are slidably engaged with the guide rail.

9. The vertical turning-milling machine tool workbench according to claim 8, characterized in that: A limit switch is provided on the frame corresponding to the lead screw assembly.

10. The vertical turning-milling compound machine tool workbench according to claim 9, characterized in that: A rotation limit switch is provided on the arc long hole or the base platform corresponding to the rotation platform.

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