A moving beam type five-axis machining center equipment

Abstract

The present invention discloses a moving beam type five-axis machining center equipment, which specifically relates to the field of CNC machine tool processing technology, including a support assembly, a processing table assembly, a Y-axis assembly, an X-axis assembly, a head assembly and a balance assembly, wherein the support assembly includes a base, a first slide rail, a second slide rail and a first linear motor system, and the first slide rail and the second slide rail are both fixedly arranged on the upper surface of the base. The present invention uses a staggered arrangement of a horizontally fixed second slide rail in conjunction with a corresponding second slider, thereby driving the trapezoidal crossbeam with an upper surface tilted backward by 45° and a trapezoidal saddle with a bottom tilted forward by 45° to slide in conjunction, and then using the geometric characteristics of the inclined surface to offset part of the forward turning moment, thereby improving the stability of the overall structure, significantly reducing the vibration amplitude of the equipment, and thereby improving the processing accuracy of the equipment, with good use effect.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control machine tool processing, and more specifically, to a movable beam type five-axis machining center equipment. Background Art

[0002] In the industrial field, parts processing is becoming increasingly complex, and large-size workpieces are appearing more and more frequently. For some large parts with complex processing, many processes and high precision requirements, processing on large ordinary CNC machine tools requires multiple clamping and the use of numerous tools and tooling to complete, and the processing efficiency is low; and the use of three-axis machining centers to process some parts with high precision, many processes and complex processing has poor results, and it is difficult to ensure the processing accuracy of parts, affecting product quality. Therefore, more advanced five-axis machining centers have been developed on the market.

[0003] The CNC five-axis machining center is a highly advanced manufacturing equipment that combines computer numerical control technology and precision mechanical engineering to achieve simultaneous control of the workpiece in five different directions. Compared with traditional three-axis machine tools, this type of machining center has higher flexibility and machining accuracy and can handle parts with more complex shapes.

[0004] However, the existing five-axis machining centers still have many shortcomings in actual use. For example, the head box used to install the spindle on a large five-axis machine tool is large in size and weight. When moving, the weight of the head box will be transferred to the X-axis guide rail fixedly installed on the crossbeam through the saddle. Since the head box is usually installed on the front side of the saddle with its center of gravity forward, when moving, it will not only apply a vertical downward pressure on the guide rail, but also apply a horizontal forward force to cause the guide rail to tend to flip forward. In actual use, the head box will constantly change its moving direction. After the inertia generated is superimposed on this flipping tendency, vibration will occur between the saddle and the fixed guide rail, thereby reducing the machining accuracy. Summary of the invention

[0005] The present invention provides a moving beam type five-axis machining center device, and aims to solve the problem that when the existing five-axis machining center is actually used, the head box installed on the front side of the saddle and with the center of gravity at the front moves, and the inertia generated is superimposed on the tendency to flip forward, and vibration occurs between the saddle and the fixed guide rail, thereby reducing the machining accuracy.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a moving beam type five-axis machining center device, comprising a support assembly, a machining table assembly, a Y-axis assembly, an X-axis assembly, a head assembly and a balancing assembly, the support assembly comprising a base, a first slide rail, a second slide rail and a first linear motor system, the first slide rail and the second slide rail are both fixedly arranged on the upper surface of the base;

[0007] The processing table assembly includes a swing axis and a rotating axis. The processing table assembly is horizontally fixed between the inner walls on both sides of the base. The swing axis and the rotating axis are both driven by a direct drive motor.

[0008] The Y-axis assembly includes a Y-axis slide and a crossbeam. The crossbeam is a trapezoidal shape with an upper surface tilted backward. A first slider is fixedly provided at the bottom of the crossbeam, and the first slider slides in cooperation with a first slide rail. A second slider is fixedly provided at the bottom of the Y-axis slide, and the second slider slides in cooperation with a second slide rail. The front end of the Y-axis slide is fixedly connected to the crossbeam, and a third slide rail is horizontally fixed at both upper and lower ends of the upper surface of the crossbeam.

[0009] The X-axis assembly includes a saddle, which is in a trapezoidal shape with the bottom tilted forward, and a third slider is arranged at the bottom of the saddle, and the third slider slides in cooperation with the corresponding third slide rail;

[0010] The balancing assembly includes an L-shaped wear-resistant plate and a consumable plate. The L-shaped wear-resistant plate is staggered at the bottom of the saddle, and the consumable plate is staggered on the upper surface of the crossbeam. The rear side of the consumable plate is slidably abutted against the front side of the L-shaped wear-resistant plate.

[0011] In a preferred embodiment, the first linear motor system is disposed between the upper surface of the base and the bottom of the Y-axis slide to drive the crossbeam to move.

[0012] In a preferred embodiment, a placement table is fixedly provided above the rotating shaft for fixing the workpiece to be processed.

[0013] In a preferred embodiment, a collecting trough is provided at the bottom of the base, and the collecting trough is located below the processing table assembly for collecting waste chips and coolant.

[0014] In a preferred embodiment, the line connecting the centers of gravity of the two second slide rails is 45 degrees, and a second linear motor system is provided at a middle position of the upper surface of the beam parallel to the line, for driving the saddle to move.

[0015] In a preferred embodiment, two brackets are staggered and fixedly provided at the bottom of the saddle, and the L-shaped wear-resistant plate is detachably installed in the corresponding brackets.

[0016] In a preferred embodiment, a dust hood is fixedly provided at the bottom of the L-shaped wear-resistant plate, the opening of the dust hood faces the consumption plate, and a plurality of interfaces are fixedly connected to the rear side of the dust hood for connecting an external dust pump.

[0017] In a preferred embodiment, two frames are staggered and fixedly provided on the upper surface of the crossbeam, a plurality of vertical through holes are opened on the top of the frame, and the consumption plate slides in the corresponding vertical through holes.

[0018] In a preferred embodiment, a plurality of mounting plates are fixedly provided on the front side of the frame, threaded holes are provided on the front side of the mounting plates, fixing bolts are provided in the threaded holes, and fixing grooves are provided at positions of the consumable plates corresponding to the threaded holes.

[0019] In a preferred embodiment, the head assembly includes a spindle box and a connecting plate, a fourth slide rail is fixedly provided on the rear side of the spindle box, the rear side of the connecting plate is fixedly connected to the saddle, a fourth slider is fixedly provided on the front side of the connecting plate, and the spindle box slides up and down along the fourth slider through the fourth slide rail.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention arranges horizontally fixed second slide rails in a staggered manner and cooperates with the corresponding second sliding blocks to drive the trapezoidal crossbeam whose upper surface is tilted backward by 45 degrees and the trapezoidal saddle whose bottom is tilted forward by 45 degrees to slide together, and then uses the geometric characteristics of the inclined surface to offset part of the forward turning moment; when the saddle is subjected to gravity in the vertical direction, part of the gravity will be converted into a component force downward along the inclined surface, which helps to offset the forward turning trend, thereby improving the stability of the overall structure, significantly reducing the vibration amplitude of the equipment, and then improving the processing accuracy of the equipment, and the use effect is good.

[0022] 2. The present invention provides a balancing component, thereby transmitting the greater friction force on the rear side of the second slide rail than on the front side to the consumable plate, thereby further improving the stability of the overall structure, and by setting the consumable plate to be adjustable, the service life of the balancing component is extended, thereby improving the service life of the second slide rail and reducing the maintenance intensity of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a schematic structural diagram of the base portion of the present invention.

[0025] Figure 3 It is a schematic structural diagram of the Y-axis slide plate part of the present invention.

[0026] Figure 4 It is a schematic structural diagram of the X-axis component part of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the bottom of the saddle of the present invention.

[0028] Figure 6 It is a schematic structural diagram of the support part of the present invention.

[0029] Figure 7 It is a structural schematic diagram of the head assembly part of the present invention.

[0030] Figure 8 It is a schematic structural diagram of the balancing component part of the present invention.

[0031] Fig. 9 It is a schematic structural diagram of part A of the present invention.

[0032] Fig.10 It is a schematic structural diagram of part B of the present invention.

[0033] Fig.11 The figure is a schematic diagram of the force-bearing structure of the saddle part of the present invention and the prior art.

[0034] The accompanying drawings are marked as follows: 1. support assembly; 2. processing table assembly; 3. Y-axis assembly; 4. X-axis assembly; 5. head assembly; 6. balance assembly; 11. base; 12. first slide rail; 13. first slider; 14. second slide rail; 15. second slider; 16. first linear motor system; 21. swing axis; 22. rotation axis; 23. placement table; 31. Y-axis slide plate; 32. crossbeam; 33. third slide rail; 34. third slider; 35. second linear motor system; 41. saddle; 51. spindle box; 52. connecting plate; 53. fourth slide rail; 54. fourth slider; 61. bracket; 62. L-shaped wear-resistant plate; 63. dust hood; 64. interface; 65. frame; 66. vertical through hole; 67. mounting plate; 68. consumable plate; 69. slide groove. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0036] Refer to the instruction manual Figures 1 to 11 A movable beam type five-axis machining center device comprises a support assembly 1, a machining table assembly 2, a Y-axis assembly 3, an X-axis assembly 4, a head assembly 5 and a balance assembly 6. The support assembly 1 comprises a base 11, a first slide rail 12, a second slide rail 14 and a first linear motor system 16. The first slide rail 12 and the second slide rail 14 are both fixedly arranged on the upper surface of the base 11.

[0037] The processing table assembly 2 includes a swing shaft 21 and a rotating shaft 22. The processing table assembly 2 is horizontally fixed between the inner walls of both sides of the base 11. The swing shaft 21 and the rotating shaft 22 are driven by a direct drive motor.

[0038] The Y-axis assembly 3 includes a Y-axis slide 31 and a crossbeam 32. The crossbeam 32 is a trapezoidal shape with an upper surface tilted backward. A first slider 13 is fixedly provided at the bottom of the crossbeam 32, and the first slider 13 slides in cooperation with the first slide rail 12. A second slider 15 is fixedly provided at the bottom of the Y-axis slide 31, and the second slider 15 slides in cooperation with the second slide rail 14. The front end of the Y-axis slide 31 is fixedly connected to the crossbeam 32, and third slide rails 33 are horizontally fixed at both upper and lower ends of the upper surface of the crossbeam 32.

[0039] The X-axis assembly 4 includes a saddle 41, which is a trapezoidal shape with the bottom tilted forward. The bottom of the saddle 41 is staggered with third sliders 34, and the third sliders 34 slide in cooperation with the corresponding third slide rails 33;

[0040] The balancing assembly 6 includes an L-shaped wear-resistant plate 62 and a consumable plate 68 . The L-shaped wear-resistant plate 62 is staggered at the bottom of the saddle 41 . The consumable plate 68 is staggered on the upper surface of the crossbeam 32 . The rear side of the consumable plate 68 is in sliding contact with the front side of the L-shaped wear-resistant plate 62 .

[0041] Refer to the instruction manual Figure 2 and Figure 3 In this embodiment, the first linear motor system 16 is disposed between the upper surface of the base 11 and the bottom of the Y-axis slide 31 to drive the crossbeam 32 .

[0042] It should be noted that the Y-axis slide plate 31 can drive the crossbeam 32 to move synchronously.

[0043] Refer to the instruction manual Figure 1 In this embodiment, a placement table 23 is fixedly provided above the rotating shaft 22 for fixing and mounting the workpiece to be processed.

[0044] It should be noted that the placement table 23 is compatible with the spindle box 51 .

[0045] Refer to the instruction manual Figure 1 and Figure 2 In this embodiment, a collecting trough is provided at the bottom of the base 11, and the collecting trough is located below the processing table assembly 2 for collecting waste chips and coolant.

[0046] It should be noted that the coolant will be recycled after being collected.

[0047] Refer to the instruction manual Figure 3 , Figure 4 and Figure 5 In this embodiment, the line connecting the centers of gravity of the two third slide rails 33 is 45 degrees, and a second linear motor system 35 is provided at the middle position of the upper surface of the beam 32 parallel to the line, for driving the saddle 41 to move.

[0048] It should be noted that such a configuration can effectively reduce the overall center of gravity height of the saddle 41 , thereby making the saddle 41 more stable when moving.

[0049] Refer to the instruction manual Figure 6 and Fig. 9 In this embodiment, two brackets 61 are staggered and fixedly provided at the bottom of the saddle 41 , and the L-shaped wear-resistant plate 62 is detachably installed in the corresponding bracket 61 .

[0050] It should be noted that the L-shaped wear-resistant plate 62 can be fixedly installed by bolts or other methods.

[0051] Refer to the instruction manual Fig. 9 and Fig.10 In this embodiment, a dust hood 63 is fixedly provided at the bottom of the L-shaped wear-resistant plate 62, the opening of the dust hood 63 faces the consumption plate 68, and a plurality of interfaces 64 are fixedly connected to the rear side of the dust hood 63 for connecting an external dust pump.

[0052] It should be noted that the waste chips generated by the wear of the consumable plate 68 will be absorbed in time, thereby ensuring a low friction state between the consumable plate 68 and the L-shaped wear-resistant plate 62, thereby extending the service life of the consumable plate 68.

[0053] Refer to the instruction manual Figure 8 In this embodiment, two frames 65 are staggered and fixed on the upper surface of the crossbeam 32 , and a plurality of vertical through holes 66 are opened on the top of the frame 65 , and the consumption plate 68 slides in the corresponding vertical through holes 66 .

[0054] It should be noted that, in the initial state, the fixed height of the consumable plate 68 is relatively low, and the staff will adjust the consumable plate 68 upward according to the actual wear conditions of the consumable plate 68 at different positions.

[0055] Refer to the instruction manual Figure 8 In this embodiment, a plurality of mounting plates 67 are fixedly provided on the front side of the frame 65, threaded holes are provided on the front side of the mounting plates 67, fixing bolts are provided in the threaded holes, and fixing grooves 69 are provided at positions of the consumable plates 68 corresponding to the threaded holes.

[0056] It should be noted that, when in use, the consumable plate 68 can be fixed by tightening the fixing bolts so that the fixing bolts are pressed against the bottom wall of the fixing groove 69; generally, the movement frequency of the spindle box 51 in the middle part of the X-axis direction of the beam 32 is higher, and the movement frequency on both sides is relatively low. Therefore, the wear conditions of the consumable plates 68 at different positions are also different. Compared with setting a single large plate, the consumable plate 68 is arranged into multiple small plates, and the replacement frequency is significantly reduced, which also effectively reduces the production cost.

[0057] Refer to the instruction manual Figure 1and Figure 7 In this embodiment, the head assembly 5 includes a spindle box 51 and a connecting plate 52. A fourth slide rail 53 is fixedly provided on the rear side of the spindle box 51. The rear side of the connecting plate 52 is fixedly connected to the saddle 41. A fourth slide block 54 is fixedly provided on the front side of the connecting plate 52. The spindle box 51 slides up and down along the fourth slide block 54 through the fourth slide rail 53.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A moving beam type five-axis machining center equipment, characterized in that: The machine tool comprises a support assembly (1), a processing table assembly (2), a Y-axis assembly (3), an X-axis assembly (4), a head assembly (5) and a balancing assembly (6); the support assembly (1) comprises a base (11), a first slide rail (12), a second slide rail (14) and a first linear motor system (16); the first slide rail (12) and the second slide rail (14) are both fixedly arranged on the upper surface of the base (11); The processing table assembly (2) comprises a swing shaft (21) and a rotating shaft (22); the processing table assembly (2) is horizontally fixed between two side inner walls of the base (11); and the swing shaft (21) and the rotating shaft (22) are both driven by a direct drive motor; The Y-axis assembly (3) comprises a Y-axis slide plate (31) and a crossbeam (32); the crossbeam (32) is arranged in a trapezoidal shape with an upper surface tilted backward; a first slider (13) is fixedly provided at the bottom of the crossbeam (32), and the first slider (13) slides in cooperation with a first slide rail (12); a second slider (15) is fixedly provided at the bottom of the Y-axis slide plate (31), and the second slider (15) slides in cooperation with a second slide rail (14); a front end of the Y-axis slide plate (31) is fixedly connected to the crossbeam (32), and third slide rails (33) are horizontally fixed at both upper and lower ends of the upper surface of the crossbeam (32); The X-axis assembly (4) comprises a saddle (41), the saddle (41) is arranged in a trapezoidal shape with the bottom tilted forward, third sliders (34) are arranged at the bottom of the saddle (41), and the third sliders (34) slide in cooperation with corresponding third slide rails (33); The balancing assembly (6) comprises an L-shaped wear-resistant plate (62) and a consumable plate (68), the L-shaped wear-resistant plate (62) being arranged at a staggered position on the bottom of the saddle (41), the consumable plate (68) being arranged at a staggered position on the upper surface of the crossbeam (32), and the rear side of the consumable plate (68) being in sliding contact with the front side of the L-shaped wear-resistant plate (62); A dust hood (63) is fixedly provided at the bottom of the L-shaped wear-resistant plate (62), the opening of the dust hood (63) faces the consumption plate (68), and a plurality of interfaces (64) are fixedly connected to the rear side of the dust hood (63) for connecting to an external dust pump.

2. The movable beam type five-axis machining center equipment according to claim 1, characterized in that: The first linear motor system (16) is arranged between the upper surface of the base (11) and the bottom of the Y-axis slide (31), and is used to drive the crossbeam (32) to move.

3. The movable beam type five-axis machining center equipment according to claim 2, characterized in that: A placement table (23) is fixedly provided above the rotating shaft (22) and is used for fixing and mounting a workpiece to be processed.

4. The movable beam type five-axis machining center equipment according to claim 3, characterized in that: A collecting trough is provided at the bottom of the base (11), and the collecting trough is located below the processing table assembly (2) and is used to collect waste chips and coolant.

5. The movable beam type five-axis machining center equipment according to claim 4, characterized in that: The connection line between the centers of gravity of the two third slide rails (33) is 45 degrees, and a second linear motor system (35) is provided at a middle position of the upper surface of the crossbeam (32) parallel to the connection line, for driving the saddle (41) to move.

6. The movable beam type five-axis machining center equipment according to claim 5, characterized in that: Two brackets (61) are staggered and fixedly provided at the bottom of the saddle (41), and the L-shaped wear-resistant plate (62) is detachably mounted in the corresponding brackets (61).

7. The movable beam type five-axis machining center equipment according to claim 6, characterized in that: Two frames (65) are staggered and fixedly provided on the upper surface of the crossbeam (32), a plurality of vertical through holes (66) are provided on the top of the frame (65), and the consumption plate (68) slides in the corresponding vertical through holes (66).

8. The movable beam type five-axis machining center equipment according to claim 7, characterized in that: A plurality of mounting plates (67) are fixedly provided on the front side of the frame (65), threaded holes are provided on the front side of the mounting plates (67), fixing bolts are provided in the threaded holes, and fixing grooves (69) are provided at positions of the consumable plates (68) corresponding to the threaded holes.

9. The movable beam type five-axis machining center equipment according to claim 8, characterized in that: The head assembly (5) comprises a main spindle box (51) and a connecting plate (52); a fourth slide rail (53) is fixedly provided on the rear side of the main spindle box (51); the rear side of the connecting plate (52) is fixedly connected to the saddle (41); a fourth slide block (54) is fixedly provided on the front side of the connecting plate (52); and the main spindle box (51) slides up and down along the fourth slide block (54) via the fourth slide rail (53).

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