Five-axis five-linkage machining center

Abstract

A five-axis five-linkage machining center is used for solving the technical problems that in the prior art, in the background technology, connection rigidity between a main shaft and a main motor of a five-axis machine tool is insufficient, vibration is prone to being generated in the high-speed machining process, tool positioning accuracy is lowered, thin-wall parts are prone to deformation in the machining process, and the surface quality of machined workpieces is affected. A longitudinally-arranged first guide rail is arranged on the upper surface of the supporting table, a first moving table is slidably arranged on the first guide rail, a transversely-arranged second guide rail is arranged on the upper surface of the first moving table, a second moving table is slidably arranged on the second guide rail, and a clamping disc used for clamping a workpiece is arranged on the second moving table. A third guide rail is arranged on the supporting frame, a third moving table is vertically arranged on the third guide rail in a sliding mode, a main motor is arranged on the third moving table, an adjusting assembly used for adjusting the rotation angle of the main motor is arranged on the third moving table, and a longitudinally-arranged main shaft is arranged on the third moving table.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control machining, and in particular to a five-axis five-linkage machining center. Background Art

[0002] Five-axis machining technology is an advanced CNC machining technology that can perform multi-directional and multi-angle precision machining of workpieces. Compared with traditional three-axis machining, five-axis machining can perform three-dimensional engraving more flexibly and process more complex workpieces. Through five-axis movement, higher precision and more complex shapes can be processed, which is suitable for aerospace, mold manufacturing and other fields.

[0003] A five-axis machining center in the prior art, such as a utility model patent document with authorization announcement number "CN219561468U" and patent name "A Five-Axis Drilling Machine", discloses a five-axis machining center, including a base, a supporting back plate, a worktable and a spindle mechanism; the worktable can be driven by a Y-axis moving mechanism to move forward and backward along the Y-axis direction and driven by a Z-axis rotating mechanism to rotate around the Z-axis; the spindle mechanism can be driven by an X-axis moving mechanism to move left and right along the X-axis direction, driven by a Z-axis moving mechanism to move up and down along the Z-axis direction and driven by a Y-axis rotating mechanism to rotate 0 degrees to 90 degrees around the Y-axis; when the five-axis drilling machine is switched from a vertical drilling machine to a horizontal drilling machine or from a horizontal drilling machine to a vertical drilling machine, the spindle mechanism can switch the angle arbitrarily within the range of 0 degrees to 90 degrees under the action of the Y-axis rotating mechanism.

[0004] The connection rigidity between the spindle and the main motor of the five-axis machine tool in the above patent document is insufficient, which is prone to vibration during high-speed processing, resulting in reduced tool positioning accuracy, easy deformation when processing thin-walled parts, and affecting the surface quality of the processed workpiece. Summary of the invention

[0005] The purpose of the present invention is to propose a five-axis five-linkage machining center in response to the deficiencies in the prior art, which is used to solve the technical problems mentioned in the background technology that the connection rigidity between the spindle and the main motor of the five-axis machine tool in the prior art is insufficient, vibration is easily generated during high-speed machining, resulting in a decrease in tool positioning accuracy, resulting in easy deformation when machining thin-walled parts, and affecting the surface quality of the machined workpiece.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A five-axis five-linkage machining center comprises a support table, a first guide rail arranged longitudinally is provided on the upper surface of the support table, a first movable table is slidably provided on the first guide rail, a second guide rail arranged transversely is provided on the upper surface of the first movable table, a second movable table is slidably provided on the second guide rail, a clamping disk for clamping a workpiece is provided on the second movable table, a vertically placed support frame is provided on one side of the support table, a third guide rail is provided on the support frame, a third movable table is vertically slidably provided on the third guide rail, a main motor is provided on the third movable table, an adjusting component for adjusting the rotation angle of the main motor is provided on the third movable table, a longitudinally arranged spindle is provided on the third movable table, and the spindle is used to improve the rigidity between the main motor and the rotating component.

[0008] Working principle:

[0009] The first movable table can be moved longitudinally on the support table by setting the first guide rail, and the second movable table can be moved transversely on the first movable table by setting the second guide rail, so that the position of the clamping plate on the support table can be changed by moving the first movable table and the second movable table, and the third movable table can be moved by the third guide rail on the support frame, and the third movable table can drive the main motor to move, so that the tool on the output end of the main motor can process the workpiece on the clamping plate. When the operator needs to change the rotation angle of the main motor, the operator can rotate the angle of the main motor by adjusting the component, so that the tool on the output end of the main motor rotates accordingly, thereby expanding the processing range of the tool on the output end of the main motor on the workpiece, and the setting of the spindle can reduce vibration when the tool on the output end of the main motor processes the workpiece, thereby improving the positioning accuracy of the tool.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] First, an adjustment component is provided, through which the rotation angle of the main motor can be changed, thereby expanding the processing range of the tool on the output end of the main motor on the workpiece.

[0012] Second, a first guide rail, a second guide rail and a first movable table and a second movable table are provided. The first guide rail can be used to longitudinally move the first movable table on the support table, and the second guide rail can be used to transversely move the second movable table on the first movable table. The position of the clamping plate on the support table is changed by the moving directions of the first movable table and the second movable table, thereby expanding the processing range of the workpiece.

[0013] Thirdly, a main shaft is provided, through which the rigidity of the local structure can be improved and the processing vibration can be reduced when the tool on the main motor processes the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0015] Figure 2 A partial cross-sectional structural diagram of the main shaft, the adjustment assembly and the main motor;

[0016] Figure 3 It is a schematic diagram of the assembly structure of the support platform, the first moving platform and the second moving platform;

[0017] Figure 4 It is a schematic diagram of the assembly structure of the support frame and the third moving platform;

[0018] Figure 5 It is a schematic diagram of the assembly structure of the clamping plate and the second driving motor;

[0019] Figure 6 It is a schematic diagram of the cross-sectional structure of the main shaft, the first reducer and the flange.

[0020] Explanation of the accompanying drawings: support table 1, first guide rail 2, first moving table 3, second guide rail 4, second moving table 5, clamping plate 6, support frame 7, third guide rail 8, third moving table 9, main motor 10, main shaft 11, first drive motor 12, first reducer 13, first drive wheel 14, first drive belt 15, flange 16, mounting block 17, mounting cavity 18, bearing 19, external thread 20, back cap 21, first motor 22, first screw 23, first slider 24, second motor 25, second screw 26, second slider 27, third motor 28, third screw 29, third slider 30, second drive motor 31, second reducer 32, second drive wheel 33, second drive belt 34, chip removal plate 35, screw rod 36, fourth motor 37, collection bin 38. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example:

[0023] like Figure 1 and Figure 3 As shown, a five-axis five-linkage machining center includes a support table 1, a longitudinally arranged first guide rail 2 is provided on the upper surface of the support table 1, a first movable table 3 is slidably provided on the first guide rail 2, a first motor 22 is fixed on the support table 1, a first screw rod 23 is rotatably provided on the support table 1 and the end of the first screw rod 23 is fixed on the output end of the first motor 22, a first slider 24 is threadedly connected to the first screw 23, the bottom of the first movable table 3 is fixedly connected to the top of the first slider 24, the first motor 22 can drive the first screw rod 23, the first screw 23 can drive the first slider 24, and the first slider 24 can drive the first movable table 3 to move on the two first guide rails 2 on the support table 1.

[0024] like Figure 1 and Figure 3 As shown, a second guide rail 4 arranged laterally is provided on the upper surface of the first movable platform 3, a second movable platform 5 is slidably provided on the second guide rail 4, a second motor 25 is fixedly provided on the first movable platform 3, a second screw rod 26 is rotated on the first movable platform 3 and an end of the second screw rod 26 is fixedly provided on the output end of the second motor 25, a second slider 27 is threadedly connected to the second screw rod 26, and the bottom of the second movable platform 5 is fixedly connected to the top of the second slider 27. The second screw rod 26 can be driven by the setting of the second motor 25, and the second screw rod 26 can drive the second slider 27, so that the second slider 27 can drive the second movable platform 5 to move on the two second guide rails 4 on the first movable platform 3.

[0025] like Figure 1 and Figure 3 and Figure 5 As shown, the second movable platform 5 is provided with a clamping plate 6 for clamping the workpiece, and the clamping plate 6 is a three-claw chuck, and the clamping plate 6 can clamp the workpiece to be processed, which is the prior art and will not be elaborated here. A second driving motor 31 is fixedly provided in the second movable platform 5, and a second reducer 32 is fixedly provided in the second movable platform 5. Second driving wheels 33 are fixedly provided on the output end of the second driving motor 31 and the input end of the second reducer 32, and second driving belts 34 are sleeved on the outer rings of the two second driving wheels 33. The clamping plate 6 is fixedly provided on the output end of the second reducer 32, and the second driving motor 31 can drive the second driving wheel 33 to rotate, and the rotation of the second driving wheel 33 can drive the second driving belt 34, so that the second driving belt 34 can drive the second driving wheel 33 on the input end of the second reducer 32 to rotate, and then the clamping plate 6 can be rotated by the second reducer 32 to expand the processing range of the workpiece.

[0026] like Figure 1 and Figure 4 As shown, a vertically placed support frame 7 is provided on one side of the support platform 1, a third guide rail 8 is provided on the support frame 7, a third movable platform 9 is vertically slidably provided on the third guide rail 8, a main motor 10 is provided on the third movable platform 9, a third motor 28 is fixedly provided on the support frame 7, a third screw rod 29 is rotatably provided on the support frame 7 and the end of the third screw rod 29 is fixedly provided on the output end of the third motor 28, a third slider 30 is threadedly connected to the third screw rod 29, and a side wall of the third slider 30 is fixedly connected to the side wall of the third movable platform 9, the third screw rod 29 can be driven to rotate by the setting of the third motor 28, and the rotation of the third screw rod 29 can drive the third slider 30 to move, so that the movement of the third slider 30 can drive the third movable platform 9 to move on the two third guide rails 8, thereby controlling the vertical height of the third movable platform 9 on the support frame 7, and finally adjusting the vertical height of the main motor 10 in this way.

[0027] like Figure 1 and Figure 2As shown, the third mobile platform 9 is provided with an adjustment component for adjusting the rotation angle of the main motor 10, the adjustment component includes a first drive motor 12, a first reducer 13, two first drive wheels 14, a first drive belt 15 and a flange 16, and a mounting block 17 is fixedly provided on the third mobile platform 9. The first drive motor 12 is fixedly provided on the mounting block 17, the first reducer 13 is fixedly provided on the mounting block 17, the two first drive wheels 14 are respectively fixedly provided on the output end of the first drive motor 12 and the input end of the first reducer 13, and the first drive belt 15 is sleeved on the two On the outer ring of the first driving wheel 14, the flange 16 is fixedly arranged on the output end of the first reducer 13 and the flange 16 is fixedly connected to the main motor 10. The first driving motor 12 can drive the first driving wheel 14, and the first driving wheel 14 can drive the first driving belt 15. The first driving belt 15 can drive the first driving wheel 14 on the input end of the first reducer 13 to rotate, so that the output end of the first reducer 13 can drive the flange 16, and the rotation of the flange 16 can drive the rotation of the main motor 10, thereby expanding the processing angle of the main motor 10.

[0028] like Figure 2 As shown, a longitudinally arranged main shaft 11 is provided on the third movable platform 9 and the main shaft 11 is used to improve the rigidity between the main motor 10 and the rotating assembly. An installation cavity 18 is provided on the third movable platform 9 and the installation block 17, and bearings 19 are fixed in the two installation cavities 18. One end of the main shaft 11 axially penetrates the two bearings 19 in sequence, and the inner rings of the two bearings 19 are respectively abutted against the main shaft 11. The other end of the main shaft 11 axially penetrates the first reducer 13 and is coaxially fixed with the flange 16. Through the cooperation of the main shaft 11 and the double bearing 19 support structure, the rigidity of the transmission system is effectively improved and the processing vibration is reduced. The first reducer 13 is specifically a PSC self-eliminating backlash reducer, and the outer wall of the main shaft 11 penetrates the connection of the first reducer 13 and is connected by a bearing.

[0029] like Figure 2 As shown, an external thread 20 is provided at the end of the main shaft 11, and a back cap 21 is threadedly connected to the external thread 20 of the main shaft 11, and the back cap 21 abuts against the inner wall of the mounting cavity 18 on the mounting block 17. By rotating the back cap 21, the main shaft 11 can be driven to move toward the third movable platform 9, thereby reducing the axial clearance of the main shaft 11 and improving the rigidity of the local structure.

[0030] like Figure 1As shown, cleaning components for cleaning waste chips are provided on both sides of the support platform 1, and the cleaning components include a V-shaped chip removal plate 35, a hollow spiral rod 36, a fourth motor 37 and a collecting bin 38. The chip removal plate 35 is fixedly arranged on one side of the support platform 1, and the inclined arrangement of both sides of the chip removal plate 35 can facilitate the movement of waste chips toward the bottom of the chip removal plate 35. The spiral rod 36 is rotatably arranged in the chip removal plate 35, and the fourth motor 37 is fixedly arranged on the chip removal plate 35 and the output end of the fourth motor 37 is fixedly connected to the spiral rod 36. The collecting bin 38 is arranged at the end of the chip removal plate 35 away from the fourth motor 37 and the collecting bin 38 is used to collect waste chips in the chip removal plate 35. The spiral rod 36 can be driven to rotate by the fourth motor 37, and the spiral rod 36 can drive the waste chips in the chip removal plate 35 to move toward the collecting bin 38, thereby completing the waste chip collection operation.

[0031] Working principle:

[0032] First, the operator clamps the workpiece to be processed on the clamping plate 6. When the workpiece is clamped, the operator can start the main motor 10, and the main motor 10 can drive the tool on its output end to rotate. Then the operator starts the third motor 28, the third motor 28 drives the third screw 29, the third screw 29 drives the third slider 30, and the third slider 30 can drive the third movable table 9 to move on the third guide rail 8 on the support frame 7, thereby driving the third movable table 9 to move toward the workpiece, and then the tool on the main motor 10 can process the surface of the workpiece.

[0033] When it is necessary to expand the tool processing range on the main motor 10, the operator starts the first motor 22, the first motor 22 drives the first screw 23, the first screw 23 drives the first slider 24, and the first slider 24 drives the first movable table 3 to move on the first guide rail 2 on the support table 1, thereby changing the position of the clamping plate 6 by moving the position of the first movable table 3, thereby expanding the processing range of the main motor 10.

[0034] When it is necessary to further expand the processing range of the tool on the main motor 10, the operator starts the second motor 25, the second motor 25 drives the second screw 26, the second screw 26 drives the second slider 27, and the second slider 27 drives the second movable table 5 to move on the second guide rail 4 on the first movable table 3, thereby changing the position of the clamping plate 6 by moving the position of the second movable table 5, thereby further expanding the processing range of the main motor 10.

[0035] When it is necessary to change the processing angle of the main motor 10, the operator starts the first drive motor 12, the first drive motor 12 drives the first drive wheel 14, the first drive wheel 14 drives the first drive belt 15, the first drive belt 15 can drive the first drive wheel 14 on the input end of the first reducer 13 to rotate, so that the output end of the first reducer 13 can drive the flange 16 to rotate, and the rotation of the flange 16 can drive the main motor 10 to rotate, thereby changing the rotation angle of the main motor 10. When the flange 16 rotates, the main shaft 11 also rotates accordingly. The end of the main shaft 11 can rotate on the mounting block 17 and the third movable platform 9 through the bearing 19, so that the rigidity of the local structure can be improved by the setting of the main shaft 11. The main shaft 11 can be driven to move toward the third movable platform 9 by rotating the back cap 21, thereby reducing the axial clearance between the main shaft 11 and the first reducer 13, and further improving the rigidity of the local structure.

[0036] When the waste chips in the chip removal plate 35 need to be collected, the operator starts the fourth motor 37, and the fourth motor 37 drives the spiral rod 36. The spiral rod 36 can drive the waste chips in the chip removal plate 35 to move toward the collection bin 38, thereby completing the waste chip collection operation.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A five-axis five-link machining center, characterized in that: The invention comprises a support platform (1), wherein a first guide rail (2) arranged longitudinally is disposed on the upper surface of the support platform (1), a first movable platform (3) is slidably disposed on the first guide rail (2), a second guide rail (4) arranged transversely is disposed on the upper surface of the first movable platform (3), a second movable platform (5) is slidably disposed on the second guide rail (4), a clamping plate (6) for clamping a workpiece is disposed on the second movable platform (5), a vertically placed support frame (7) is disposed on one side of the support platform (1), a third guide rail (8) is disposed on the support frame (7), a third movable platform (9) is vertically slidably disposed on the third guide rail (8), a main motor (10) is disposed on the third movable platform (9), an adjusting component for adjusting the rotation angle of the main motor (10) is disposed on the third movable platform (9), and a longitudinally arranged main shaft (11) is disposed on the third movable platform (9), and the main shaft (11) is used to improve the rigidity between the main motor (10) and the rotating component.

2. A five-axis five-link machining center according to claim 1, characterized in that: The adjustment component comprises a first drive motor (12), a first reducer (13), two first drive wheels (14), a first drive belt (15) and a flange (16); a mounting block (17) is fixedly arranged on the third movable platform (9); the first drive motor (12) is fixedly arranged on the mounting block (17); the first reducer (13) is fixedly arranged on the mounting block (17); the two first drive wheels (14) are respectively fixedly arranged on the output end of the first drive motor (12) and the input end of the first reducer (13); the first drive belt (15) is sleeved on the outer rings of the two first drive wheels (14); the flange (16) is fixedly arranged on the output end of the first reducer (13) and the flange (16) is fixedly connected to the main motor (10).

3. A five-axis five-link machining center according to claim 2, characterized in that: The third movable platform (9) and the mounting block (17) are both provided with mounting cavities (18), and bearings (19) are fixedly arranged in the two mounting cavities (18); one end of the main shaft (11) axially passes through the two bearings (19) in sequence, and the inner rings of the two bearings (19) are respectively in contact with the main shaft (11); the other end of the main shaft (11) axially passes through the first reducer (13) and is coaxially fixedly connected to the flange (16).

4. A five-axis five-link machining center according to claim 3, characterized in that: An external thread (20) is formed at the end of the main shaft (11), a back cap (21) is threadedly connected to the external thread (20) of the main shaft (11), and the back cap (21) abuts against the inner wall of the mounting cavity (18) on the mounting block (17).

5. The five-axis five-link machining center according to claim 1, characterized in that: A first motor (22) is fixedly arranged on the support platform (1), a first screw rod (23) is rotatably arranged on the support platform (1), and the end of the first screw rod (23) is fixedly arranged on the output end of the first motor (22), a first slider (24) is threadedly connected to the first screw rod (23), and the bottom of the first moving platform (3) is fixedly connected to the top of the first slider (24).

6. The five-axis five-link machining center according to claim 1, characterized in that: A second motor (25) is fixedly arranged on the first movable platform (3); a second screw rod (26) is rotated on the first movable platform (3) and an end of the second screw rod (26) is fixedly arranged on an output end of the second motor (25); a second slider (27) is threadedly connected to the second screw rod (26); and a bottom of the second movable platform (5) is fixedly connected to a top of the second slider (27).

7. The five-axis five-link machining center according to claim 1, characterized in that: A third motor (28) is fixedly arranged on the support frame (7), a third screw rod (29) is rotatably arranged on the support frame (7), and the end of the third screw rod (29) is fixedly arranged on the output end of the third motor (28), a third slider (30) is threadedly connected to the third screw rod (29), and a side wall of the third slider (30) is fixedly connected to a side wall of the third moving platform (9).

8. The five-axis five-link machining center according to claim 1, characterized in that: A second driving motor (31) is fixedly arranged in the second moving platform (5), a second reducer (32) is fixedly arranged in the second moving platform (5), second driving wheels (33) are fixedly arranged on the output end of the second driving motor (31) and the input end of the second reducer (32), second driving belts (34) are sleeved on the outer rings of the two second driving wheels (33), and the clamping disk (6) is fixedly arranged on the output end of the second reducer (32), and the clamping disk (6) is a three-claw chuck.

9. The five-axis five-link machining center according to claim 1, characterized in that: Cleaning components for cleaning waste scraps are provided on both sides of the support platform (1).

10. A five-axis five-link machining center according to claim 9, characterized in that: The cleaning assembly comprises a V-shaped chip removal plate (35), a hollow spiral rod (36), a fourth motor (37) and a collecting bin (38); the chip removal plate (35) is fixedly arranged on one side of the support platform (1); the spiral rod (36) is rotatably arranged in the chip removal plate (35); the fourth motor (37) is fixedly arranged on the chip removal plate (35) and the output end of the fourth motor (37) is fixedly connected to the spiral rod (36); the collecting bin (38) is arranged at the end of the chip removal plate (35) away from the fourth motor (37) and the collecting bin (38) is used to collect waste chips in the chip removal plate (35).

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