Multi-station tool machining device

Abstract

The utility model discloses a multi-station cutter machining device which comprises a workbench and a center rotary table unit, and a first station, a second station, a third station and a fourth station are sequentially arranged on the periphery, corresponding to the center rotary table unit, of the workbench. The first station, the second station, the third station and the fourth station are correspondingly provided with a feeding and discharging mechanism, a slotting grinding mechanism, an end edge grinding mechanism and a circumferential edge grinding mechanism respectively, and the center rotary table unit comprises a center rotary table and a plurality of rotary clamping mechanisms which are arranged on the center rotary table and correspond to the feeding and discharging mechanism, the slotting grinding mechanism, the end edge grinding mechanism and the circumferential edge grinding mechanism respectively. And the center rotary table drives the cutters on the rotary clamping mechanism to sequentially rotate to different stations for machining. The four-station grinding machine can grind cutters such as a spherical milling cutter, a flat-bottom milling cutter, a round nose cutter or a drill bit, the four stations can conduct respective machining work at the same time and do not affect one another, efficient cooperative operation is achieved, the working efficiency is high, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool processing, in particular to a multi-station tool processing device. Background Art

[0002] The single-station structure of the existing five-axis tool grinder can only process one milling cutter alone. Moreover, since the processing of the milling cutter involves multiple processes such as slotting grinding mechanism, end blade grinding mechanism, and peripheral blade grinding mechanism, only one process can be processed at the same time, and the processing efficiency is low. Utility Model Content

[0003] The utility model aims to provide a multi-station tool processing device to solve the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a multi-station tool processing device, including a workbench, a center turntable unit is arranged in the middle of the workbench, and the first, second, third and fourth stations are arranged in sequence on the periphery of the workbench corresponding to the center turntable unit, and the first, second, third and fourth stations are respectively provided with a loading and unloading mechanism, a slotting grinding mechanism, an end blade grinding mechanism and a peripheral blade grinding mechanism. The center turntable unit includes a center turntable and a plurality of rotating clamping mechanisms which are arranged on the center turntable and correspond to the loading and unloading mechanism, the slotting grinding mechanism, the end blade grinding mechanism and the peripheral blade grinding mechanism, which are used to clamp and rotate the tool, and the center turntable drives the tool on the rotating clamping mechanism to rotate to different stations in sequence for processing.

[0005] Preferably, there are four rotary clamping mechanisms, which are evenly distributed on the circumference of the central turntable, and the angle between two adjacent rotary clamping mechanisms is 90°. A tool support mechanism is provided on the workbench below the rotary clamping mechanism.

[0006] Preferably, an independent reference coordinate system is established for each workstation, the front-to-back direction of each workstation is the Y-axis direction, the left-to-right direction is the X-axis direction, and the up-down direction is the Z-axis direction, that is, the central turntable unit is located in front of each workstation, the rotation direction of the rotating clamping mechanism is the A-axis direction, and the A-axis direction is the direction of rotation around the Y-axis direction of the corresponding workstation. The second, third, and fourth workstations are respectively provided with an XY-axis moving mechanism and a Z-axis lifting mechanism. The XY-axis moving mechanism is used to drive the grinding mechanism on the corresponding workstation to move back and forth along the X-axis and Y-axis directions, and the Z-axis lifting mechanism is used to drive the grinding mechanism on the corresponding workstation to move back and forth along the Z-axis direction.

[0007] Preferably, the direction of rotation around the Z axis at each workstation is defined as the B-axis direction, and a B-axis rotation mechanism is provided on the second, third or fourth workstation to drive the grinding mechanism on the corresponding workstation to swing back and forth along the B-axis direction.

[0008] Preferably, the XY-axis moving mechanism includes a fixed seat, an X-axis slide, an X-axis driving member, a Y-axis slide and a Y-axis driving member. The X-axis driving member drives the X-axis slide to move back and forth along the X-axis direction on the fixed seat, and the Y-axis driving member drives the Y-axis slide to move back and forth along the Y-axis direction on the X-axis slide. The B-axis rotation mechanism is installed on the Y-axis slide, and the Z-axis lifting mechanism is installed on the B-axis rotation mechanism. The slotting grinding mechanism, the end blade grinding mechanism, and the peripheral blade grinding mechanism are respectively fixedly installed on the Z-axis lifting mechanisms corresponding to the second, third, and fourth workstations.

[0009] Preferably, the slotting and grinding mechanism includes an electric spindle and a grinding wheel connected to the electric spindle.

[0010] Preferably, the structures of the slotting grinding mechanism, the end edge grinding mechanism and the peripheral edge grinding mechanism are the same.

[0011] Preferably, rotating motors are respectively provided near the second, third and fourth workstations in the central turntable, and a first gear is installed on the output shaft of the rotating motor. The rotating clamping mechanism includes a conical cylinder and a clamping module rotatably installed in the conical cylinder. The clamping module includes a transmission member, a universal joint and a tubular chuck. The transmission member and the tubular chuck are connected through a universal joint. A second gear meshing with the first gear is provided at the end of the transmission member away from the universal joint.

[0012] Preferably, the rotating motor and the rotating clamping mechanism are perpendicular to each other, and the first gear and the second gear are bevel gears perpendicular to each other.

[0013] Preferably, the tool comprises a spherical milling cutter, a flat-bottomed milling cutter, a round-nose cutter or a drill bit, and the blade diameter of the tool is 0.3-10 mm.

[0014] The utility model has the following beneficial effects:

[0015] The utility model includes a workbench, a center turntable unit is provided in the middle of the workbench, and the first, second, third, and fourth workstations are provided on the workbench in sequence corresponding to the periphery of the center turntable unit. The first, second, third, and fourth workstations are provided with loading and unloading mechanisms, slotting and grinding mechanisms, end blade grinding mechanisms, and peripheral blade grinding mechanisms, respectively. The center turntable unit includes a center turntable and a plurality of rotary clamping mechanisms provided on the center turntable and corresponding to the loading and unloading mechanisms, slotting and grinding mechanisms, end blade grinding mechanisms, and peripheral blade grinding mechanisms, respectively, for clamping and rotating the tool. The center turntable drives the tool on the rotary clamping mechanism to rotate to different workstations in sequence for processing. The device can grind tools such as spherical milling cutters, flat-bottom milling cutters, round nose cutters, or drill bits. The rotary structural layout of the center turntable unit enables the four workstations to perform their respective processing tasks simultaneously without affecting each other, and operate efficiently and collaboratively. The processing process is simple, the processing time is short, the work efficiency is high, the production efficiency is improved, and the grinding quality is good. The device occupies a small area and does not require a large number of operators, saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of an embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the assembly of the B-axis rotation mechanism, the XY-axis movement mechanism, and the end blade grinding mechanism of an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the assembly of the XY axis moving mechanism and the slotting and grinding mechanism of an embodiment of the present utility model;

[0020] Figure 5 This is a schematic structural diagram of a central turntable unit according to an embodiment of the present invention;

[0021] Figure 6 is a longitudinal sectional view of the central turntable unit of an embodiment of the present utility model;

[0022] Figure 7 is a transverse cross-sectional view of a central turntable unit according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic structural diagram of a milling cutter according to an embodiment of the present utility model;

[0024] Figure 9 This is a schematic structural diagram of an alloy ball end milling cutter according to an embodiment of the present invention;

[0025] Figure 10 This is a schematic structural diagram of a flat-bottomed milling cutter according to an embodiment of the present invention;

[0026] Figure 11 It is a structural schematic diagram of a drill bit according to an embodiment of the utility model;

[0027] Figure markings: 1 workbench, 2 center turntable, 3 first station, 4 second station, 5 third station, 6 fourth station, 7 rotary clamping mechanism, 71 cone body, 72 ball bearing, 73 transmission part, 74 universal joint, 75 tubular chuck, 8 manipulator, 9 loading and unloading trays, 10 slotting grinding mechanism, 11 end blade grinding mechanism, 12 peripheral blade grinding mechanism, 13 tool support mechanism, 14 electric spindle, 15 grinding wheel, 16XY axis moving mechanism, 161 fixed seat, 162 X axis slide, 163 X axis driving part, 164 Y axis slide, 165 Y axis driving part, 17 Z axis lifting mechanism, 18 B axis rotating mechanism, 19 rotating motor, 20 first bevel gear, 21 second bevel gear, 22 milling cutter, 221 spiral chip groove, 222 end blade, 223 peripheral blade. DETAILED DESCRIPTION

[0028] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0029] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] See Figure 1-11 As shown, as an embodiment of the present invention, a multi-station tool processing device is provided, including a workbench 1, a center turntable unit is provided in the middle of the workbench 1, and the first station 3, the second station 4, the third station 5, and the fourth station 6 are provided in a clockwise direction in the periphery of the corresponding center turntable unit on the workbench 1. The first, second, third, and fourth stations 6 are respectively provided with a loading and unloading mechanism, a slotting grinding mechanism 10, an end blade grinding mechanism 11, and a peripheral blade grinding mechanism 12. The center turntable unit includes a center turntable 2 and four parts arranged on the center turntable 2 and respectively connected to the upper and lower parts. The blanking mechanism, the slotting grinding mechanism 10, the end blade grinding mechanism 11, and the circumferential blade grinding mechanism 12 correspond to the rotary clamping mechanism 7. Specifically, the four rotary clamping mechanisms 7 are evenly distributed on the circumferential periphery of the center turntable 2, and the angle between two adjacent rotary clamping mechanisms 7 is 90°. A tool supporting mechanism 13 is provided on the workbench 1 below the rotary clamping mechanism 7. The tool supporting mechanism 13 supports the tool. The rotary clamping mechanism 7 is used to clamp and rotate the tool. The center turntable 2 drives the tool on the rotary clamping mechanism 7 to rotate to different workstations in sequence for processing.

[0032] The multi-station tool processing device of the utility model is mainly used for the efficient batch production of tools with a blade diameter of 0.3 to 10 mm. The tools include spherical milling cutters, flat-bottom milling cutters, round-nose cutters or drill bits, etc. The rotating structural layout of the central turntable unit enables the four stations to perform their respective processing work simultaneously without affecting each other, and operate efficiently and collaboratively. The processing flow is simple, the processing time is short, the work efficiency is high, the production efficiency is improved, and the grinding quality is good. The device occupies a small area and does not require a large number of operators, saving labor costs.

[0033] In this embodiment, an independent reference coordinate system is established for each workstation. The front-to-back direction of each workstation is the Y-axis direction, the left-to-right direction is the X-axis direction, and the up-down direction is the Z-axis direction. That is, the central turntable unit corresponds to the front of each workstation, and the rotation direction of the rotary clamping mechanism 7 is the A-axis direction, which is the direction of rotation around the Y-axis direction of its corresponding workstation. The second, third, and fourth workstations 6 are respectively provided with an XY-axis moving mechanism 16 and a Z-axis lifting mechanism 17. The XY-axis moving mechanism 16 is used to drive the grinding mechanism on the corresponding workstation to move back and forth along the X-axis and Y-axis directions, and the Z-axis lifting mechanism 17 is used to drive the grinding mechanism on the corresponding workstation to move back and forth along the Z-axis direction. Specifically, the direction of rotation around the Z-axis at each workstation is defined as the B-axis direction. The second, third, or fourth workstation 6 is provided with a B-axis rotating mechanism 18 to drive the grinding mechanism on the corresponding workstation to swing back and forth along the B-axis direction. This arrangement enables the five-axis linkage of the multi-station tool processing device, thereby meeting the requirements of different processing procedures for multiple tools.

[0034] In this embodiment, the XY-axis moving mechanism 16 includes a fixed seat 161, an X-axis slide 162, an X-axis driving member 163, a Y-axis slide 164 and a Y-axis driving member 165. The X-axis driving member 163 drives the X-axis slide 162 to move back and forth along the X-axis direction on the fixed seat 161, and the Y-axis driving member 165 drives the Y-axis slide 164 to move back and forth along the Y-axis direction on the X-axis slide 162. The B-axis rotation mechanism 18 is installed on the Y-axis slide 164, and the Z-axis lifting mechanism 17 is installed on the B-axis rotation mechanism 18. The slotting grinding mechanism 10, the end blade grinding mechanism 11, and the peripheral blade grinding mechanism 11 are The mechanism 12 is fixedly installed on the Z-axis lifting mechanism 17 corresponding to the second, third and fourth stations 6 respectively. This arrangement can improve the accuracy and stability of the movement of the slotting grinding mechanism 10, the end blade grinding mechanism 11, and the circumferential blade grinding mechanism 12 along each axis, thereby ensuring the accuracy and stability of tool processing. In addition, since some tools do not require B-axis rotation processing in the second and fourth stations 6, the second and fourth stations 6 can selectively not install the B-axis rotation mechanism 18 according to needs, and only rely on the four-axis linkage cooperation of the X-axis, Y-axis, Z-axis, and A-axis for processing.

[0035] In this embodiment, the slotting grinding mechanism 10 includes an electric spindle 14 and a grinding wheel 15 connected to the electric spindle 14. There are two grinding wheels 15 coaxially arranged, and the diameter of the front grinding wheel 15 is smaller than the diameter of the rear grinding wheel 15. The structures of the slotting grinding mechanism 10, the end blade grinding mechanism 11, and the peripheral blade grinding mechanism 12 are the same. Of course, the grinding wheel 15 can also be only a single one.

[0036] In this embodiment, a rotary motor 19 is provided in the center turntable 2 near the second, third, and fourth stations 6, respectively. A first bevel gear 20 is mounted on the output shaft of the rotary motor 19. The rotary clamping mechanism 7 includes a conical cylinder 71 and a clamping module rotatably mounted in the conical cylinder 71. The clamping module includes a transmission member 73, a universal joint 74, and a tubular chuck 75. The transmission member 73 and the tubular chuck 75 are connected by a universal joint 74. The tubular chuck 75 is used to clamp the tail end of the tool. The end of the transmission member 73 away from the universal joint 74 is provided with a second bevel gear 21 meshing with the first bevel gear 20. A ball bearing 72 is installed between the clamping module and the conical cylinder 71. This technical solution prevents the vibration of the rotary clamping mechanism 7 from being transmitted to the end of the tubular chuck 75 during operation, thereby preventing the tool from tilting and ensuring the clamping stability of the tool, with higher fault tolerance and precision.

[0037] In this embodiment, the rotating motor 19 and the rotating clamping mechanism 7 are perpendicular to each other, and the first bevel gear 20 and the second bevel gear 21 are perpendicular bevel gears, thereby fully utilizing the internal space of the central turntable 2 and making the entire device more reasonable and compact.

[0038] In this embodiment, the loading and unloading mechanism includes a robot 8 and a loading and unloading tray 9. The robot 8 clamps the milling cutter blank to be processed on the loading tray and places it on the rotating clamping mechanism 7 of the second workstation 4. After the milling cutter blank is processed through all steps to form a complete tool, the robot 8 clamps the tool from the rotating clamping mechanism 7 of the fourth workstation 6 and places it on the unloading tray.

[0039] The tool processing process of this embodiment is as follows:

[0040] S1, the robot 8 clamps the milling cutter blank to be processed on the loading tray and places it on the rotating clamping mechanism 7 of the first station 3;

[0041] S2. The center turntable 2 rotates 90°, and the milling cutter blank is transferred to the second workstation 4. The rotary motor 19 cooperates with the rotary clamping mechanism 7 to drive the milling cutter blank to rotate about the A-axis. The XY-axis moving mechanism 16 and the Z-axis lifting mechanism 17 cooperate with each other to drive the slotting and grinding mechanism 10 to move back and forth along the X-axis, Y-axis, and Z-axis directions, thereby realizing the spiral chip removal groove 221 of the milling cutter blank along the axial direction to obtain the first processed tool.

[0042] S3, the center turntable 2 continues to rotate 90 degrees, and the first processing tool is transferred to the third station 5. The rotary motor 19 cooperates with the rotary clamping mechanism 7 to drive the first processing tool to rotate around the A-axis. The XY-axis moving mechanism 16, the Z-axis lifting mechanism 17 and the B-axis rotating mechanism 18 cooperate with each other to drive the end blade grinding mechanism 11 to move back and forth along the X-axis, Y-axis, Z-axis and B-axis directions, thereby performing end blade 222 grinding on the end of the first processing tool to obtain the second processing tool.

[0043] S4, the center turntable 2 continues to rotate 90 degrees, and the second processing tool is transferred to the fourth station 6. The rotary motor 19 cooperates with the rotary clamping mechanism 7 to drive the second processing tool to rotate around the A-axis. The XY-axis moving mechanism 16 and the Z-axis lifting mechanism 17 cooperate with each other to drive the slotting and grinding mechanism 10 to move back and forth along the X-axis, Y-axis, and Z-axis directions, thereby grinding the peripheral edge 223 of the second processing tool, and finally obtaining a complete milling cutter 22;

[0044] S5, the manipulator 8 clamps the tool on the rotary clamping mechanism 7 of the fourth station 6 and places it on the blanking tray, completing the milling cutter processing process.

[0045] In summary, the multi-station tool processing device of this embodiment is mainly used for the efficient production of large quantities of tools, and has great advantages in production efficiency, power consumption, labor costs, processing accuracy, dimensional stability, etc.:

[0046] 1.Production efficiency: about 200% to 300% higher than that of five-axis tool grinder (about 65SEC / PCS for 6 shanks).

[0047] 2. Labor cost: Since the equipment has multi-function and multi-position capabilities, the average labor cost of a single tool is about 30% to 40% of that of a five-axis tool grinder.

[0048] 3. High processing precision: blade radial runout within 0.002mm, blade diameter consistency within 0.003mm.

[0049] 4. Lower power consumption: The average power consumption of a single tool is about 30% of that of a five-axis tool grinder.

[0050] 5. The operation interface is intuitive and easy to operate.

[0051] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims shall fall within the scope of protection of the present invention.

Claims

1. A multi-station tool processing device, characterized in that: It includes a workbench, a center turntable unit is arranged in the middle of the workbench, and the first, second, third and fourth workstations are arranged in sequence on the periphery of the workbench corresponding to the center turntable unit. The first, second, third and fourth workstations are respectively provided with loading and unloading mechanisms, slotting grinding mechanisms, end blade grinding mechanisms and peripheral blade grinding mechanisms. The center turntable unit includes a center turntable and multiple rotary clamping mechanisms which are arranged on the center turntable and correspond to the loading and unloading mechanisms, slotting grinding mechanisms, end blade grinding mechanisms and peripheral blade grinding mechanisms, respectively, and are used for clamping and rotating the tool. The center turntable drives the tool on the rotary clamping mechanism to rotate to different workstations in sequence for processing.

2. The multi-station tool processing device according to claim 1, characterized in that: There are four rotary clamping mechanisms, which are evenly distributed on the circumference of the central turntable, and the angle between two adjacent rotary clamping mechanisms is 90°. A tool support mechanism is provided on the workbench below the rotary clamping mechanism.

3. The multi-station tool processing device according to claim 1, characterized in that: An independent reference coordinate system is established for each workstation. The front-to-back direction of each workstation is the Y-axis direction, the left-to-right direction is the X-axis direction, and the up-down direction is the Z-axis direction. That is, the central turntable unit is located in front of each workstation, and the rotation direction of the rotary clamping mechanism is the A-axis direction. The A-axis direction is the direction of rotation around the Y-axis direction of the corresponding workstation. The second, third, and fourth workstations are respectively provided with an XY-axis moving mechanism and a Z-axis lifting mechanism. The XY-axis moving mechanism is used to drive the grinding mechanism on the corresponding workstation to move back and forth along the X-axis and Y-axis directions, and the Z-axis lifting mechanism is used to drive the grinding mechanism on the corresponding workstation to move back and forth along the Z-axis direction.

4. The multi-station tool processing device according to claim 3, characterized in that: The direction of rotation around the Z axis at each station is defined as the B-axis direction. A B-axis rotation mechanism is provided on the second, third or fourth station to drive the grinding mechanism on the corresponding station to swing back and forth along the B-axis direction.

5. The multi-station tool processing device according to claim 4, characterized in that: The XY-axis moving mechanism includes a fixed seat, an X-axis slide, an X-axis driving member, a Y-axis slide and a Y-axis driving member. The X-axis driving member drives the X-axis slide to move back and forth along the X-axis direction on the fixed seat. The Y-axis driving member drives the Y-axis slide to move back and forth along the Y-axis direction on the X-axis slide. The B-axis rotation mechanism is installed on the Y-axis slide, and the Z-axis lifting mechanism is installed on the B-axis rotation mechanism. The slotting grinding mechanism, end blade grinding mechanism, and peripheral blade grinding mechanism are respectively fixedly installed on the Z-axis lifting mechanism corresponding to the second, third, and fourth workstations.

6. The multi-station tool processing device according to claim 1, characterized in that: The slotting and grinding mechanism comprises an electric spindle and a grinding wheel connected to the electric spindle.

7. The multi-station tool processing device according to claim 1, characterized in that: The structures of the slotting grinding mechanism, the end blade grinding mechanism and the peripheral blade grinding mechanism are the same.

8. The multi-station tool processing device according to claim 1, characterized in that: Rotating motors are respectively provided near the second, third and fourth workstations in the central turntable. A first gear is installed on the output shaft of the rotating motor. The rotating clamping mechanism includes a conical cylinder and a clamping module rotatably installed in the conical cylinder. The clamping module includes a transmission member, a universal joint and a tubular chuck. The transmission member and the tubular chuck are connected through a universal joint. A second gear meshing with the first gear is provided at the end of the transmission member away from the universal joint.

9. The multi-station tool processing device according to claim 8, characterized in that: The rotating motor and the rotating clamping mechanism are perpendicular to each other, and the first gear and the second gear are bevel gears perpendicular to each other.

10. The multi-station tool processing device according to any one of claims 1 to 9, characterized in that: The cutting tool comprises a spherical milling cutter, a flat bottom milling cutter, a round nose cutter or a drill bit, and the diameter of the cutting tool is 0.3 to 10 mm.

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