A turning and milling compound double tool magazine device and working method for five-axis CNC machining equipment

Abstract

The present invention discloses a lathe-milling composite double tool magazine device and a working method for five-axis CNC machining equipment, belonging to the field of machine tool technology. The present invention can flexibly and fully automatically convert the lathe, milling, grinding, drilling, and measuring functions that may be applied to the five-axis CNC machining equipment; the left and right tool magazines are set up with clear functions; the layout of the two tool magazines fully utilizes the span of the double-column gantry beam, does not affect the machining range, and does not waste the horizontal tool change stroke; the stroke matching of the Z and W axes allows the tool magazine to land and reduce the beam load; the arrangement of the upper and lower tool magazine discs matches the tool change position of the ram milling head, which also maximizes the utilization rate of the Z-axis stroke.

Description

Technical Field

[0001] The invention relates to a turning-milling compound double tool magazine device for five-axis numerical control machining equipment and a working method, belonging to the technical field of machine tools. Background Art

[0002] Domestic five-axis CNC machining equipment still has certain limitations in processing. Considering the functional complexity, flexibility and automation of five-axis CNC machining equipment, it is necessary to restructure the turning and milling tool magazines in order to more effectively improve the comprehensive capabilities of the five-axis CNC machining equipment. Summary of the invention

[0003] In order to solve the shortcomings of the above-mentioned prior art, the present invention provides a turning-milling compound double tool magazine device and a working method for five-axis CNC machining equipment, which fully utilizes the span of the double-column gantry beam of the five-axis CNC machining equipment without affecting the machining range and wasting the horizontal tool changing stroke; the stroke of the Z and W axes is matched so that the tool magazine is on the ground, reducing the load on the beam; the arrangement of the upper and lower tool magazine discs, and the matching of the tool changing position of the slide ram and milling head, also maximizes the utilization of the Z-axis stroke.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a turning and milling compound double tool magazine device for five-axis CNC machining equipment, the turning and milling tool holder of the five-axis CNC machining equipment has up and down Z-axis movement, and can perform horizontal X-axis movement on the crossbeam; the crossbeam can perform vertical W-axis movement on the double-column gantry; the workbench can perform front and rear Y-axis movement on the bed; the left milling tool magazine mechanism is fixed on the left side of the gantry, and can rotate as an external D-axis; the right accessory head magazine mechanism is fixed on the right side of the gantry, and can rotate as an external E-axis, wherein the left milling tool magazine mechanism and the right accessory head magazine mechanism both adopt a bamboo hat type tool magazine structure, because the size between the double-column gantries is the maximum diameter workpiece processing size, and the left and right lengths of the crossbeam are greater than the distance between the double-column gantries, so that the turning and milling tool holder is moved to the left and right sides of the double-column gantry through the crossbeam, so the left milling tool magazine mechanism and the right accessory head magazine mechanism are respectively fixed on the ground on both sides of the double-column gantry, and the ground tool magazine structure can effectively avoid the interference of the weight bending moment of the tool magazine on the accuracy of the crossbeam and the tool holder, and both Located directly below the X-axis moving track of the milling cutter holder on the crossbeam, the left milling cutter magazine mechanism adopts an upper and lower double-layer tool magazine disc, the upper tool magazine disc has six equal-angle array positions for installing vertical milling cutters, and the lower tool magazine disc has six equal-angle array positions for installing horizontal milling cutters. The upper and lower tool magazine discs are staggered to form a milling cutter magazine with twelve equal-angle array positions, which can be controlled by a set of servo motors; the right attachment head magazine mechanism adopts a single-layer tool disc, which is driven by a set of servo motors. Control, there are eight equal-angle array stations on the tool disk of the right accessory head magazine mechanism. Considering the force balance of the tool magazine, station 1 is equipped with a swing-angle milling head, station 2 is equipped with a CAPTO vertical lathe tool clamp, station 3 is equipped with a CAPTO vertical lathe tool clamp, station 4 is equipped with a right-angle milling head, station 5 is equipped with a dust cover, station 6 is equipped with a grinding head accessory, station 7 is equipped with a square lathe tool clamp, and station 8 is equipped with a workpiece measuring tool; the left milling tool magazine mechanism and the right accessory head magazine mechanism are both connected to the electrical system of the five-axis CNC machining equipment and controlled by their electrical systems.

[0005] According to the above description, a working method of a turning-milling compound double tool magazine device for five-axis CNC machining equipment is provided: when the turning-milling tool holder grabs the accessory head, the turning-milling tool holder is in an empty tool state and moves horizontally to the right along the crossbeam; the right accessory head magazine mechanism rotates to turn the accessory head to be grabbed to the 9 o'clock position; the Z-axis slide descends to grab the corresponding accessory head.

[0006] When the milling tool holder grabs the end mill, the milling tool holder is in an empty tool state and moves horizontally to the right along the beam; the right accessory head magazine mechanism rotates to turn the dust cover to the 9 o'clock position; the Z-axis slide descends to grab the dust cover to protect the four corner cylinders; the milling tool holder moves horizontally to the left along the beam; the left milling tool magazine mechanism rotates to turn the upper tool magazine disk end mill that needs to be grabbed to the 3 o'clock position; the Z-axis slide descends to grab the corresponding end mill.

[0007] When the right-angle milling head grabs the horizontal milling cutter, the turning and milling tool holder is in an empty-tool state and moves horizontally to the right along the crossbeam; the right accessory head magazine mechanism rotates to turn the right-angle milling head to the 9 o'clock position; the Z-axis slide descends to grab the right-angle milling head; the turning and milling tool holder moves horizontally to the left along the crossbeam with the right-angle milling head; the left milling tool magazine mechanism rotates to turn the horizontal milling cutter on the lower tool magazine disk that needs to be grabbed to the 3 o'clock position; the Z-axis slide descends, and the right-angle milling head grabs the corresponding horizontal milling cutter.

[0008] When the swing milling head grabs the milling cutter, the turning and milling tool holder is in an empty tool state and moves horizontally to the right along the beam; the right accessory head magazine mechanism rotates to turn the swing milling head to the 9 o'clock position; the Z-axis slide descends to grab the swing milling head; the turning and milling tool holder moves horizontally to the left along the beam with the swing milling head; when it is necessary to grab the end mill, the swing milling head swings the milling spindle to a 0° vertical state; the left milling tool magazine mechanism rotates to turn the end mill of the upper tool magazine disk to be grabbed to the 3 o'clock position; the Z-axis slide descends, and the swing milling head grabs the corresponding end mill; when it is necessary to grab the horizontal milling cutter, the swing milling head swings the milling spindle to a -90° left horizontal state; the left milling tool magazine mechanism rotates to turn the horizontal milling cutter of the lower tool magazine disk to be grabbed to the 3 o'clock position; the Z-axis slide descends, and the swing milling head grabs the corresponding horizontal milling cutter.

[0009] In actual use, the present invention takes comprehensive consideration of the complexity of functions, and can flexibly and automatically convert the turning, milling, grinding, drilling, measuring and other functions that may be applied to five-axis CNC machining equipment; the left and right tool magazines have clear functions; the layout of the two tool magazines fully utilizes the span of the double-column gantry beam, does not affect the machining range, and does not waste the horizontal tool changing stroke; the stroke matching of the Z and W axes allows the tool magazine to land and reduce the beam load; the arrangement of the upper and lower tool magazine discs, and the matching of the tool changing position of the ram milling head, also maximize the utilization rate of the Z-axis stroke. The left and right double tool magazine layout is adopted for the five-axis CNC machining equipment, so that the turning and milling tool holder can realize the complex tool changing function of multiple accessory heads and multiple tools through the left and right double tool magazines; the left and right floor-standing tool magazine structure can effectively avoid the interference of the weight bending moment of the tool magazine on the accuracy of the crossbeam and the tool holder; the vertical X-axis and Z-axis travel of the tool holder, combined with the W-axis travel of the crossbeam lifting and lowering, and the two-layer tool magazine plate of the milling tool magazine, enable the tool holder to reach the range of the floor-standing tool magazine for automatic tool replacement, the left milling tool magazine has a vertical milling cutter on the first layer and a horizontal milling cutter on the second layer, the ram grabs the vertical milling cutter at a high position, and the right-angle milling head grabs the horizontal milling cutter at a low position. The relationship between the three can be fully realized by the ram travel, and the right-angle milling head and B-axis swing milling head grabbed by the tool holder also have the function of automatically grabbing milling / drilling tools.

[0010] The beneficial effects of the present invention are as follows: it solves the problem of realizing the functions of turning, milling, grinding, drilling, tapping and measuring in a five-axis CNC machining center, and takes rigorous consideration of complexity, flexibility and space, fully utilizes the span of the double-column gantry crossbeam, does not affect the machining range, and does not waste the horizontal tool change stroke; the strokes of the Z and W axes are matched, so that the tool magazine is on the ground, reducing the load on the crossbeam; the arrangement of the upper and lower tool magazine plates matches the tool change position of the ram milling head, and also maximizes the utilization rate of the Z axis stroke, adopts the left and right layout of the double tool magazine for the five-axis CNC machining equipment, so that the turning and milling tool holder can pass through the left and right double tool magazines to realize multi-attachment The complex tool changing function of the workpiece head and multiple tools; the left and right floor-standing tool magazine structure can effectively avoid the interference of the weight and bending moment of the tool magazine on the accuracy of the beam and the tool holder; the vertical X-axis and Z-axis travel of the tool holder, combined with the W-axis travel of the beam lifting and lowering, and the second-layer tool magazine plate of the milling tool magazine, enable the tool holder to reach the range of the floor-standing tool magazine for automatic tool replacement, the left milling tool magazine has a first-layer vertical milling cutter and a second-layer horizontal milling cutter, the ram grabs the vertical milling cutter at a high position, and the right-angle milling head grabs the horizontal milling cutter at a low position. The relationship between the three can be fully realized by utilizing the ram travel, and the right-angle milling head and B-axis swing milling head grabbed by the tool holder also have the function of automatically grabbing milling / drilling tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0012] Figure 1 It is a schematic diagram of the structure of the present invention.

[0013] Figure 2 This is a schematic diagram of the left milling tool magazine mechanism.

[0014] Figure 3 This is a top view of the left milling tool magazine mechanism.

[0015] Figure 4 It is a schematic diagram of the right attachment head library mechanism.

[0016] Figure 5 It is a top view of the right accessory head library mechanism.

[0017] Numbers in the figure:

[0018] 1. Turning and milling tool holder, 2. Left milling tool magazine mechanism, 3. Right accessory head magazine mechanism, 4. Crossbeam, 5. Double-column gantry, 6. Swinging milling head, 7. Five-axis CNC machining center worktable, 8. Square turning tool clamp, 9. CAPTO vertical turning tool clamp, 10. Right-angle milling head, 11. CAPTO horizontal turning tool clamp, 12. Dust cover, 13. Vertical milling cutter, 14. Horizontal milling cutter, 15. Upper tool magazine plate, 16. Lower tool magazine plate, 17. Workpiece measuring tool, 18. Grinding head accessories. DETAILED DESCRIPTION

[0019] like Figure 1-5As shown, a milling compound double tool magazine device for five-axis CNC machining equipment, the milling tool holder 1 of the five-axis CNC machining equipment has up and down Z-axis movement, and can perform horizontal X-axis movement on the crossbeam 4; the crossbeam 4 can perform vertical W-axis movement on the double-column gantry; the workbench 7 can perform front and back Y-axis movement on the bed; the left milling tool magazine mechanism 2 is fixed on the left side of the gantry, and can rotate as an external D-axis; the right accessory head magazine mechanism 3 is fixed on the right side of the gantry, and can rotate as an external E-axis, wherein the left milling tool magazine mechanism 2 and the right The attachment head magazine mechanism 3 adopts a bamboo hat-type tool magazine structure. Since the size between the double-column gantry 5 is the maximum diameter workpiece processing size, and the left and right lengths of the beam 4 are greater than the distance between the double-column gantry 5, the milling tool holder 1 is moved to the left and right sides of the double-column gantry 5 through the beam 4. Therefore, the left milling tool magazine mechanism 2 and the right attachment head magazine mechanism 3 are respectively fixed on the ground on both sides of the double-column gantry 5. The ground-type tool magazine structure can effectively avoid the tool magazine weight bending moment from interfering with the accuracy of the beam and the tool holder, and both are located on the X-axis of the milling tool holder 1 on the beam 4. Directly below the moving track, the left milling tool magazine mechanism 2 adopts an upper and lower double-layer tool magazine disc, the upper tool magazine disc 15 has six equal-angle array stations for installing the vertical milling cutter 13, and the lower tool magazine disc 16 has six equal-angle array stations for installing the horizontal milling cutter 14. The upper and lower tool magazine discs are arranged alternately to form a milling tool magazine with twelve equal-angle array stations, which can be controlled by a group of servo motors; the right accessory head magazine mechanism 3 adopts a single-layer tool disc, which is driven and controlled by a group of servo motors. 3 is provided with eight stations in an equiangular array. Considering the force balance of the tool magazine, station 1 is equipped with a swing-angle milling head 6, station 2 is equipped with a CAPTO vertical lathe tool holder 9, station 3 is equipped with a CAPTO vertical lathe tool holder 11, station 4 is equipped with a right-angle milling head 10, station 5 is equipped with a dust cover 12, station 6 is equipped with a grinding head accessory 18, station 7 is equipped with a square lathe tool holder 8, and station 8 is equipped with a workpiece measuring tool 17; the left milling tool magazine mechanism 2 and the right accessory head magazine mechanism 3 are both connected to the electrical system of the five-axis CNC machining equipment and controlled by their electrical systems.

[0020] According to the above description, a working method of a turning-milling compound double tool magazine device for five-axis CNC machining equipment is provided: when the turning-milling tool holder 1 grabs the accessory head, the turning-milling tool holder 1 is in an empty tool state and moves horizontally to the right along the crossbeam 4; the right accessory head magazine mechanism 3 rotates to turn the accessory head to be grabbed to the 9 o'clock position; the Z-axis slide descends to grab the corresponding accessory head.

[0021] When the milling tool holder 1 grabs the end mill 13, the milling tool holder 1 is in an empty tool state and moves horizontally to the right along the beam 4; the right accessory head magazine mechanism 3 rotates to turn the dust cover 12 to the 9 o'clock position; the Z-axis slide descends to grab the dust cover 12 to protect the four-corner cylinder; the milling tool holder 1 moves horizontally to the left along the beam 4; the left milling tool magazine mechanism 2 rotates to turn the upper tool magazine disc 15 end mill 13 that needs to be grabbed to the 3 o'clock position; the Z-axis slide descends to grab the corresponding end mill 13.

[0022] When the right-angle milling head 10 grabs the horizontal milling cutter 14, the turning and milling tool holder 1 is in an empty tool state and moves horizontally to the right along the crossbeam 4; the right accessory head magazine mechanism 3 rotates to turn the right-angle milling head 10 to the 9 o'clock position; the Z-axis slide descends to grab the right-angle milling head 10; the turning and milling tool holder 1 moves horizontally to the left along the crossbeam 4 with the right-angle milling head 10; the left milling tool magazine mechanism 2 rotates to turn the lower tool magazine disc 16 horizontal milling cutter 14 that needs to be grabbed to the 3 o'clock position; the Z-axis slide descends, and the right-angle milling head 10 grabs the corresponding horizontal milling cutter 14.

[0023] When the swing-angle milling head 6 grabs the milling cutter, the turning and milling tool holder 1 is in an empty-tool state and moves horizontally to the right along the crossbeam 4; the right accessory head magazine mechanism 3 rotates to turn the swing-angle milling head 6 to the 9 o'clock position; the Z-axis slide descends to grab the swing-angle milling head 6; the turning and milling tool holder 1 moves horizontally to the left along the crossbeam 4 with the swing-angle milling head 6; when it is necessary to grab the end mill 13, the swing-angle milling head 6 swings the milling spindle to a 0° vertical state; the left milling tool magazine mechanism 2 rotates to turn the upper tool magazine disc 15 end mill 13 to be grabbed to the 3 o'clock position; the Z-axis slide descends, and the swing-angle milling head 6 grabs the corresponding end mill 13; when it is necessary to grab the horizontal milling cutter 14, the swing-angle milling head 6 swings the milling spindle to a -90° left horizontal state; the left milling tool magazine rotates to turn the lower tool magazine disc 16 end mill 14 to be grabbed to the 3 o'clock position; the Z-axis slide descends, and the swing-angle milling head 6 grabs the corresponding horizontal milling cutter 14.

[0024] In actual use, the present invention takes comprehensive consideration of the complexity of functions, and can flexibly and automatically convert the turning, milling, grinding, drilling, measuring and other functions that may be applied to five-axis CNC machining equipment; the left and right tool magazines have clear functions; the layout of the two tool magazines fully utilizes the span of the double-column gantry beam, does not affect the machining range, and does not waste the horizontal tool changing stroke; the stroke matching of the Z and W axes allows the tool magazine to land and reduce the beam load; the arrangement of the upper and lower tool magazine discs, and the matching of the tool changing position of the ram milling head, also maximize the utilization rate of the Z-axis stroke. The left and right double tool magazine layout is adopted for the five-axis CNC machining equipment, so that the turning and milling tool holder can realize the complex tool changing function of multiple accessory heads and multiple tools through the left and right double tool magazines; the left and right floor-standing tool magazine structure can effectively avoid the interference of the weight bending moment of the tool magazine on the accuracy of the crossbeam and the tool holder; the vertical X-axis and Z-axis travel of the tool holder, combined with the W-axis travel of the crossbeam lifting and lowering, and the two-layer tool magazine plate of the milling tool magazine, enable the tool holder to reach the range of the floor-standing tool magazine for automatic tool replacement, the left milling tool magazine has a vertical milling cutter on the first layer and a horizontal milling cutter on the second layer, the ram grabs the vertical milling cutter at a high position, and the right-angle milling head grabs the horizontal milling cutter at a low position. The relationship between the three can be fully realized by the ram travel, and the right-angle milling head and B-axis swing milling head grabbed by the tool holder also have the function of automatically grabbing milling / drilling tools.

Claims

1. A milling tool magazine device for a five-axis CNC machining equipment, wherein the milling tool holder (1) of the five-axis CNC machining equipment has up and down Z-axis movement and can perform horizontal X-axis movement on a crossbeam (4); the crossbeam (4) can perform vertical W-axis movement on a double-column gantry; the worktable (7) can perform forward and backward Y-axis movement on a bed; a left milling tool magazine mechanism (2) is fixed on the left side of the gantry and can rotate as an external D-axis; a right attachment head magazine mechanism (3) is fixed on the right side of the gantry and can rotate as an external E-axis; the left milling tool magazine mechanism (2) and the right attachment head magazine mechanism (3) both adopt a bamboo hat-type tool magazine, characterized in that: The left milling tool magazine mechanism (2) and the right accessory head magazine mechanism (3) are respectively fixed on the ground on both sides of the double-column gantry (5), and are both located directly below the X-axis moving track of the milling tool holder (1) on the crossbeam (4). The left milling tool magazine mechanism (2) adopts an upper and lower double-layer tool magazine disc, the upper tool magazine disc (15) has six equal-angle array positions for installing the vertical milling cutter (13), and the lower tool magazine disc (16) has six equal-angle array positions for installing the horizontal milling cutter (14). The upper and lower tool magazine discs are arranged in a staggered manner to form a milling tool magazine with twelve equal-angle array positions, which can be controlled by a set of servo motors; the right accessory head magazine mechanism (3) adopts a single The tool disk is driven by a set of servo motors. The tool disk of the right accessory head magazine mechanism (3) is provided with eight workstations arranged in an equal angle array. Considering the force balance of the tool magazine, workstation 1 is equipped with a swing angle milling head (6), workstation 2 is equipped with a CAPTO vertical lathe tool holder (9), workstation 3 is equipped with a CAPTO vertical lathe tool holder (11), workstation 4 is equipped with a right angle milling head (10), workstation 5 is equipped with a dust cover (12), workstation 6 is equipped with a grinding head accessory (18), workstation 7 is equipped with a square lathe tool holder (8), and workstation 8 is equipped with a workpiece measuring tool (17); the left milling tool magazine mechanism (2) and the right accessory head magazine mechanism (3) are both connected to the electrical system of the five-axis CNC machining equipment and controlled by the electrical system thereof.

2. A working method for a turning-milling compound double tool magazine device for a five-axis CNC machining equipment according to claim 1, characterized in that: When the milling tool holder (1) grabs the attachment head, the milling tool holder (1) is in an empty tool state and moves horizontally to the right along the crossbeam (4); the right attachment head storage mechanism (3) rotates to turn the attachment head to be grabbed to the 9 o'clock position; the Z-axis ram descends to grab the corresponding attachment head; when the milling tool holder (1) grabs the end mill (13), the milling tool holder (1) is in an empty tool state and moves horizontally to the right along the crossbeam (4); The right attachment head magazine mechanism (3) rotates and moves the dust cover (12) to the 9 o'clock position; the Z-axis ram descends and grabs the dust cover (12) to protect the four corner cylinders; the milling tool holder (1) moves horizontally to the left along the crossbeam (4); the left milling tool magazine mechanism (2) rotates and moves the upper tool magazine plate (15) end mill (13) to be grabbed to the 3 o'clock position; the Z-axis ram descends and grabs the corresponding end mill (13); when the right-angle milling head (10) grabs the horizontal milling cutter (14), the milling tool holder (1) is in an empty tool state and moves horizontally to the right along the crossbeam (4); the right attachment The head magazine mechanism (3) rotates to rotate the right-angle milling head (10) to the 9 o'clock position; the Z-axis ram descends to grab the right-angle milling head (10); the milling tool holder (1) moves horizontally to the left along the crossbeam (4) with the right-angle milling head (10); the left milling tool magazine mechanism (2) rotates to rotate the horizontal milling cutter (14) of the lower tool magazine disc (16) to be grabbed to the 3 o'clock position; the Z-axis ram descends, and the right-angle milling head (10) grabs the corresponding horizontal milling cutter (14); when the swing-angle milling head (6) grabs the milling cutter, the milling tool holder (1) is in an empty tool state and moves horizontally to the right along the crossbeam (4); The right attachment head magazine mechanism (3) rotates to rotate the angular milling head (6) to the 9 o'clock position; the Z-axis slide moves down to grab the angular milling head (6); the turning and milling tool holder (1) moves horizontally to the left along the crossbeam (4) with the angular milling head (6); when it is necessary to grab the end mill (13), the angular milling head (6) swings the milling spindle to a 0° vertical state; the left milling tool magazine mechanism (2) rotates to move the end mill to be grabbed on the upper tool magazine plate (15) (13) is rotated to the 3 o'clock position; the Z-axis ram is lowered, and the swing milling head (6) grabs the corresponding vertical milling cutter (13); when it is necessary to grab the horizontal milling cutter (14), the swing milling head (6) swings the milling spindle to a -90° left horizontal state; the left milling cutter magazine mechanism (2) rotates to rotate the horizontal milling cutter (14) of the lower tool magazine disc (16) to be grabbed to the 3 o'clock position; the Z-axis ram is lowered, and the swing milling head (6) grabs the corresponding horizontal milling cutter (14).

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