Five-axis linkage milling and turning combined machining center

Abstract

The utility model discloses a five-axis linkage milling and turning combined machining center which comprises a base and a stand column and further comprises a machining unit, a moving device and a spindle box unit, the moving device is arranged on the stand column and used for driving the machining unit to move along the X axis and the Z axis, and a rotating device for driving the machining unit to swing is arranged on the moving device. The base is further provided with a Y-axis moving assembly which is brave to drive the spindle box unit to move, the spindle box unit can fix one end or two ends of a workpiece, the spindle box unit comprises a movable spindle and a fixed spindle which synchronously rotate along the same axis, the movable spindle is further provided with an ejector pin assembly used for abutting against the workpiece, and the machining unit is matched with the spindle box unit to machine the workpiece. The spindle box unit can adapt to workpieces of various lengths, the fixed spindle and the movable spindle can fix and drive the workpieces to synchronously rotate, the workpieces are machined through cooperation with the rotatable machining unit, the complex workpieces can be machined, and the machining precision is high.

Description

Technical Field

[0001] The present application relates to the technical field of machine tool equipment, and in particular to a five-axis linkage milling and turning compound machining center. Background Art

[0002] In mechanical processing, turning and milling are the most basic and important processing methods; when processing parts with complex structures, lathes and milling machines are needed separately, and different machine tools are difficult to use interchangeably.

[0003] Existing machine tools have many processing steps when processing parts with complex structures, and different types of machine tools need to be used for processing respectively, which leads to low processing efficiency and reduced processing accuracy. Summary of the invention

[0004] The purpose of this application is to provide a five-axis milling and turning compound machining center to solve the above problems, using the following technical solutions:

[0005] A five-axis linkage milling and turning compound machining center comprises a base and a column, and also comprises a machining unit, a moving device and a spindle box unit. The moving device is arranged on the column and is used to drive the machining unit to move along the X-axis and the Z-axis. The moving device is provided with a rotating device for driving the machining unit to swing. The base is also provided with a Y-axis moving assembly for driving the spindle box unit to move. The spindle box unit can fix one end or both ends of the workpiece. The spindle box unit comprises a moving spindle and a fixed spindle that rotate synchronously along the same axis. The moving spindle is also provided with a pin assembly for tightening the workpiece. The machining unit cooperates with the spindle box unit to process the workpiece.

[0006] The spindle box is used to fix and drive the workpiece to rotate, the fixed spindle and the dynamic spindle can drive the workpiece to rotate synchronously, and the Y-axis moving assembly and the moving device can cooperate with the rotation or swing of the machining unit to achieve five-axis linkage, and can perform turning and milling on the workpiece, so that parts with complex structures can be processed and the machining accuracy can be guaranteed.

[0007] Preferably, the fixed spindle includes a fixed seat, a driving device is provided in the fixed seat, a clamp is provided on one side of the driving device, the driving device drives the clamp to rotate, and a brake disc is provided on the other side to rotate with the driving device, and a braking device for clamping the brake disc is also provided on the fixed seat, and the brake disc is used to brake the driving device.

[0008] Further preferably, the dynamic spindle includes a movable seat, a driving device 2 is provided in the movable seat, a clamp 2 is provided on the side of the driving device 2 opposite to the clamp 1, the braking device 2 drives the clamp 2 to rotate, and a brake disc 2 is provided on the other side that rotates following the driving device 2, and a braking device 2 for clamping the brake disc 2 is also provided on the movable seat, and the brake disc 2 is used to brake the driving device 2.

[0009] Preferably, the ejector assembly comprises an ejector and a clamping device for pushing the ejector, and the ejector and the clamping device are connected via a connecting shaft.

[0010] Preferably, the moving spindle and the fixed spindle are connected to the Y-axis moving assembly via a sliding plate, and the moving spindle is slidably disposed on the sliding plate.

[0011] Further preferably, the dynamic spindle is further provided with a locking assembly, and the locking assembly includes a hook block and a locking member for locking the hook block; and the sliding plate is provided with a groove for matching the hook block.

[0012] Further preferably, the driving device 1 and the driving device 2 are both DD motors.

[0013] Preferably, a tool changing assembly corresponding to the processing unit is also provided on one side of the base, and the tool changing assembly includes a tool magazine and a manipulator. The tool magazine is also provided with a tool pushing assembly, and the tool pushing assembly is used to push the tool out of the tool magazine. The manipulator can assemble the pushed tool onto the processing unit.

[0014] The tool pusher assembly can push the tool to be used out of the tool magazine, and the tool can be quickly changed for the processing unit through a manipulator, without the need for manual tool change, increasing the tool change speed and improving processing efficiency.

[0015] Further preferably, the push blade assembly is a cylinder.

[0016] Preferably, the base and the columns are both hollow structures.

[0017] Beneficial effects of this application:

[0018] (1) The machining unit is driven to rotate by a rotating device. A spindle box unit is provided on the base to clamp and drive the workpiece to rotate. The spindle box unit can adapt to workpieces of various lengths and has high versatility. It can clamp one or both ends of the workpiece and drive the workpiece to rotate synchronously to ensure the machining accuracy of the workpiece. The machining unit can cooperate with the swinging machine to process the workpiece, integrating the machine tool and the milling machine, so that it can process workpieces with complex structures.

[0019] (2) A tool changing assembly corresponding to the machining unit is provided on one side of the base, and a tool pushing assembly capable of pushing the tool out of the tool magazine is provided on the tool magazine. The manipulator can push the required tool out of the tool pushing assembly and assemble it on the machining unit, thereby reducing the tool changing time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional schematic diagram of the present application;

[0021] Figure 2 It is a three-dimensional schematic diagram of the spindle box unit of the present application;

[0022] Figure 3 It is a front view of the headstock unit of the present application;

[0023] Figure 4 It is a cross-sectional view taken at AA of this application;

[0024] Figure 5 It is a cross-sectional view at BB of this application;

[0025] Figure 6 This is a three-dimensional diagram of the tool change assembly of this application Figure 1 ;

[0026] Figure 7 This is a three-dimensional diagram of the tool change assembly of this application Figure 2 .

[0027] In the figure: 1, base, 2, column, 3, machining unit, 4, spindle box unit, 41, fixed seat, 43A, brake device 1, 44A, fixture 1, 45A, brake disc 1, 46A, drive device 1, 42, movable seat, 43B, brake device 2, 44B, fixture 2, 45B, brake disc 2, 46B, drive device 2, 401, clamping device, 402, waist hole, 403, limit pin, 404, ejector, 5, manipulator, 51, drive assembly, 52, rotating arm, 501, hook block, 502, groove, 503, locking piece, 504, accommodating groove, 6, tool magazine, 61, push tool assembly, 62, tool sleeve, 63, tool, 7, Z-axis moving assembly, 8, X-axis moving assembly, 9, Y-axis moving assembly, 10, rotating device, 100, sliding plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in the present application are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0029] See also Figure 1 and Figure 7 , the application is further explained, the five-axis linkage milling and turning compound machining center includes a base 1 and a column 2, and also includes a machining unit 3, a moving device and a spindle box unit 4, the moving device is arranged on the column 2, and is used to drive the machining unit 3 to move along the X-axis and the Z-axis, and the moving device is provided with a rotating device 10 for driving the machining unit 3 to swing, and the base 1 is also provided with a Y-axis moving component 9 for driving the spindle box unit 4 to move, the spindle box unit 4 can fix one end or both ends of the workpiece, the spindle box unit 4 includes a moving spindle and a fixed spindle that rotate synchronously along the same axis, and the moving spindle is also provided with a pin assembly for tightening the workpiece, and the machining unit 3 cooperates with the spindle box unit 4 to process the workpiece; the base and the column can be designed as a hollow structure to reduce the overall weight.

[0030] Combination Figure 1 The moving device includes an X-axis moving component 8 and a Z-axis moving component 7. The Z-axis moving component 7 is used to drive the processing unit 3 to move along the Z-axis. The X-axis moving component 8 is arranged on the column 2. The X-axis moving component 8 is used to drive the Z-axis moving component 7 to move along the Z-axis. The rotating device 10 connects the processing unit 3 to the Z-axis moving component 7 to drive the processing unit 3 to swing.

[0031] Combination Figure 2 and Figure 4 , the moving spindle and the fixed spindle are connected to the Y-axis moving assembly 9 through a sliding plate 100; the fixed spindle is fixedly arranged on the sliding plate 100, the moving spindle can be slidably arranged on the sliding plate 100, the rotation centers of the fixed spindle and the moving spindle are on the same axis, the fixed spindle and the moving spindle are respectively fixed to one end of the workpiece, and the Y-axis moving assembly 9 can drive the spindle box unit 4 to cooperate with the machining unit 3 to move (in the Y direction);

[0032] The fixed spindle includes a fixed seat 41 and a driving device 46A arranged in the fixed seat 41, wherein the driving device 46A can be a DD motor, and a clamp 44A and a brake disc 45A are respectively connected to the two sides of the driving device 46A, the driving device 46A drives the clamp 44A to rotate synchronously, and the brake disc 45A rotates synchronously with the driving device 46A, the clamp 44A is used to fix the workpiece, and the fixed seat 41 is also provided with a braking device 43A for clamping the brake disc 45A to brake the driving device 46A; during machining, a short workpiece can be clamped by the fixed spindle, and the machining unit 3 can be used to drive the workpiece to rotate, so that parts with complex structures can be machined.

[0033] Combination Figure 4The moving spindle is slidably arranged on the sliding plate 100 and is arranged on the same axis as the fixed spindle. The moving spindle includes a movable seat 42 and a driving device 46B arranged in the movable seat 42, wherein the driving device 46B can be a DD motor, and a clamp 44B for fixing the other end of the workpiece is provided on the side of the driving device 46B opposite to the clamp 44A, and a brake disc 45B is provided on the other side of the driving device 46B. The driving device 46B can drive the clamp 44B to rotate synchronously, and the brake disc 45B rotates synchronously with the driving device 46B. A brake device 43B is also provided on the movable seat 42, and the brake device 43B can clamp the brake disc 45B, thereby braking the driving device 46B to rotate; in this embodiment, the brake device 43A and the brake device 43B can be caliper disc brakes; in other embodiments not shown, the brake device 43A and the brake device 43B can also be brakes.

[0034] It should be noted that the driving device 1 46A and the driving device 2 46B rotate synchronously along the same axis, and the dynamic spindle can move on the sliding plate 100 along the axis direction (X direction).

[0035] When processing a long workpiece, the other end of the workpiece can be fixed by adjusting the moving spindle, and the drive device 1 46A and the drive device 2 46B can synchronously drive the workpiece to rotate and cooperate with the processing unit 3 to process the workpiece, thereby avoiding affecting the processing accuracy due to the asynchronous rotation of the two sides during processing.

[0036] Combination Figure 4The movable spindle is also provided with an ejector assembly for fixing the workpiece, and the ejector assembly includes an ejector 404 and a clamping device 401. The ejector 404 is arranged in the second clamp 44B, and the clamping device 401 is arranged on the second brake disc 45B, wherein the clamping device 401 can be a hollow rotary oil cylinder; the internal piston is pushed by the hydraulic oil, thereby generating an axial force to realize axial transmission; a connecting shaft (not shown) is screwed between the ejector 404 and the clamping device 401, and the clamping device 401 is used to drive the ejector 404 to move (in the X direction) to clamp or release the workpiece, and the clamping device 401 pushes the ejector 404 axially through the connecting shaft The ejector pin 404 is provided with a waist-shaped hole 402, and the ejector pin 404 is arranged in the second clamp 44B through a limit pin 403; specifically, the limit pin 403 passes through the waist-shaped hole 402 and is arranged on the second clamp 44B, and an ejector pin may also be arranged in the first clamp 44A; wherein, the first clamp and the second clamp may be chucks; in actual use, the ejector pin is used in combination with the first clamp and the second clamp to fix the two ends of the workpiece. In this embodiment, the two ends of the workpiece are clamped and pushed at the same time; in other embodiments not shown, the two ends of the workpiece can be clamped and fixed at the same time, both ends can be pushed at the same time, or one end can be clamped and the other end can be pushed at the same time.

[0037] Combination Figure 5 The moving spindle is also provided with a locking assembly, which includes a hook block 501 and a locking member 503 for locking the hook block 501. In this embodiment, the locking member can be a bolt. The moving spindle is provided with a receiving groove 504 for accommodating the hook block 501. The hook block 501 is arranged in the receiving groove 504. The locking member 503 passes through one side of the moving spindle and is screwed to the hook block 501 in the receiving groove 504. The sliding plate 100 is provided with a There is a groove 502 corresponding to the hook block 501, and the hook block 501 can hook the groove 502. The hook block 501 can be tightened by the locking member 503, so that the hook block 501 grasps the groove 502, thereby locking the position of the dynamic spindle on the sliding plate 100; when using the dynamic spindle, after adjusting the position of the dynamic spindle according to the length of the workpiece, the position of the dynamic spindle can be fixed by the locking assembly to prevent the dynamic spindle from moving during processing.

[0038] Combination Figure 6 and Figure 7 The processing unit 3 is used for processing workpieces. A plurality of horizontally placed tool sleeves 62 are provided in the tool magazine 6. The tool sleeves 62 can be arranged equidistantly to form a closed loop connected end to end. A motor is provided on the tool magazine 6 to drive the tool sleeves 62 to rotate. The tool sleeves 62 are used to install tools 63.

[0039] The manipulator 5 includes a driving component 51 and a rotating arm 52. Grippers for grabbing the tool 63 are provided on both sides of the rotating arm 52. The driving component 51 drives the rotating arm 52 to remove the tool 63 and replace it with a new tool 63, which can shorten the tool change time and improve the processing efficiency.

[0040] When the tool needs to be changed during use, the X-axis moving assembly 8 and the Z-axis moving assembly 7 move the processing unit 3 to the tool changing position, and the rotating device 10 drives the processing unit 3 to rotate to be perpendicular to the X-axis. The tool pushing assembly 61 pushes the required tool 63 out of the tool magazine. At this time, the pushed tool 63 is in a vertical state, and the tool 63 pushed out from the tool magazine is on the same horizontal line as the tool 63 on the processing unit 3. The driving assembly 51 drives the rotating arm 52 to rotate, and the claws at both ends of the rotating arm 52 simultaneously clamp the tool to be replaced 63 on the processing unit 3 and the replaced tool 63 pushed out by the tool pushing assembly 61. After the driving assembly 51 drives the rotating arm 52 to remove the tool 63, the rotating arm 52 rotates 180 degrees, and then replaces the tool 63 to be replaced on the processing unit 3, and the replaced tool 63 is installed in the tool sleeve 62. In this embodiment, the tool pushing assembly 61 can be a cylinder.

[0041] In actual use, when processing a shorter workpiece, the workpiece can be clamped only by the clamp 44A on the fixed spindle, and the clamp 44A can be driven to rotate synchronously by the driving device 46A to cooperate with the processing unit 3 to process the workpiece.

[0042] When it is necessary to process a longer workpiece, the moving spindle can be adjusted to cooperate with the fixed spindle to prevent the workpiece from bending due to the force exerted by the machining unit on the workpiece during cutting of the longer workpiece, thereby affecting the machining effect and accuracy of the workpiece; the clamp 1 44A on the fixed spindle and the clamp 2 44B on the moving spindle can clamp the two ends of the workpiece, the ejector assembly in the moving spindle fixes the workpiece, and the drive device 1 46A and the drive device 2 46B can drive the workpiece to rotate synchronously, thereby ensuring the rotation accuracy of the two ends of the workpiece and improving the machining quality.

[0043] The moving device can drive the processing unit 3 to move along the Z-axis and X-axis directions, the rotating device 10 can drive the processing unit 3 to swing around the Y-axis, the spindle box unit 4 can drive the workpiece to rotate in coordination with the processing unit 3, and the Y-axis moving component 9 that drives the spindle box unit to move along the Y-axis, thereby realizing five-axis linkage and being able to process workpieces with complex surfaces. The spindle box unit can fix workpieces of different lengths, thereby achieving higher processing accuracy and improving the processing effect of the workpiece surface.

Claims

1. A five-axis milling and turning compound machining center, including a base and a column, characterized in that: It also includes a processing unit, a moving device and a spindle box unit. The moving device is arranged on the column and is used to drive the processing unit to move along the X-axis and the Z-axis. The moving device is provided with a rotating device for driving the processing unit to swing. The base is also provided with a Y-axis moving component for driving the spindle box unit to move. The spindle box unit can fix one end or both ends of the workpiece. The spindle box unit includes a moving spindle and a fixed spindle that rotate synchronously along the same axis. The moving spindle is also provided with a pin assembly for tightening the workpiece. The processing unit cooperates with the spindle box unit to process the workpiece.

2. The five-axis milling and turning compound machining center according to claim 1 is characterized in that: The fixed spindle includes a fixed seat, a driving device is arranged in the fixed seat, a clamp is arranged on one side of the driving device, the driving device drives the clamp to rotate, and a brake disc is arranged on the other side to rotate with the driving device, and a braking device for clamping the brake disc is also arranged on the fixed seat, and the brake disc is used to brake the driving device.

3. The five-axis milling and turning compound machining center according to claim 2 is characterized in that: The dynamic spindle includes a movable seat, in which a driving device 2 is provided, a clamp 2 is provided on the side of the driving device 2 opposite to the clamp 1, the braking device 2 drives the clamp 2 to rotate, and a brake disc 2 is provided on the other side to rotate with the driving device 2, and a braking device 2 for clamping the brake disc 2 is also provided on the movable seat, and the brake disc 2 is used to brake the driving device 2.

4. The five-axis milling and turning compound machining center according to claim 1 is characterized in that: The ejector assembly comprises an ejector and a clamping device for pushing the ejector, and the ejector and the clamping device are connected via a connecting shaft.

5. The five-axis milling and turning compound machining center according to claim 1 is characterized in that: The moving spindle and the fixed spindle are connected to the Y-axis moving assembly via a sliding plate, and the moving spindle is slidably disposed on the sliding plate.

6. The five-axis milling and turning compound machining center according to claim 3 is characterized in that: The driving device 1 and the driving device 2 are both DD motors.

7. The five-axis milling and turning compound machining center according to claim 5 is characterized in that: The dynamic main shaft is also provided with a locking assembly, which includes a hook block and a locking member for locking the hook block; the sliding plate is provided with a groove for matching the hook block.

8. The five-axis milling and turning compound machining center according to claim 1 is characterized in that: A tool changing assembly corresponding to the processing unit is also provided on one side of the base. The tool changing assembly includes a tool magazine and a manipulator. The tool magazine is also provided with a tool pushing assembly, which is used to push the tool out of the tool magazine. The manipulator can assemble the pushed tool onto the processing unit.

9. The five-axis milling and turning compound machining center according to claim 8 is characterized in that: The push blade assembly is a cylinder.

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