A milling cutter machining apparatus

Abstract

The utility model discloses a milling cutter processing equipment, including work table, the clamping unit is arranged in the middle part of work table, work table is sequentially equipped with first, second, third, fourth station along the circumferential direction, first, second, third, fourth station respectively correspond to be provided with the feeding and drawing unit, the section difference fish tail unit, the left screw processing unit, the right screw processing unit, and the clamping unit includes the rotary table, four rotation axis chuck are set up on the rotary table along the circumference and drive the driving piece that drives the rotary table to go up and down and rotate, and the rotation axis chuck is used for clamping rotation to the cutter, and four rotation axis chuck correspond respectively with first station, second station, third station, fourth station, and the cutter on the rotation axis chuck is sequentially rotated to different stations and is processed under the drive of the rotary table, and the feeding and drawing unit below is provided with the feeding tray and the discharge tray. The utility model can carry out the section difference grinding or grinding fish tail processing to the cutter, and the processing flow is simple, and the processing efficiency is high, and the grinding quality is better.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool processing technology, specifically to a milling cutter processing equipment. Background Technology

[0002] The milling cutters used in PCB (Printed Circuit Board) production, also called router cutters, are used in the post-processing of PCBs (or in the lamination and frame-making stages). Their main purpose is to use these cutters to process the manufactured circuit board. The PCB milling process involves several crucial steps, including step grinding and fishtail grinding. Step grinding involves grinding the bar stock to the required outer diameter and length, while fishtail grinding involves grinding the tip of the milling cutter into a shape resembling the tail of a fish.

[0003] In the existing technology, the step grinding and fishtail grinding processes in the PCB milling cutter manufacturing process are carried out on two separate machines, which results in a complex processing flow, long processing time, low work efficiency, and generally poor grinding quality. In addition, the equipment occupies a large area, requires a large number of operators, and has high labor costs. Utility Model Content

[0004] The present invention aims to provide a milling cutter processing device to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a milling cutter processing equipment, including a worktable, a clamping unit arranged in the middle of the worktable, and a first, second, third, and fourth workstation arranged sequentially along the circumferential direction of the worktable. The first, second, third, and fourth workstations are respectively provided with a loading / unloading unit, a step-fishtail unit, a left-hand rotation processing unit, and a right-hand rotation processing unit. The clamping unit includes a rotary table, four circumferentially arranged rotary chucks on the rotary table, and a driving component for driving the rotary table to lift and rotate. The rotary chucks are used to clamp and rotate the cutting tool. The four rotary chucks are respectively connected to the first, second, third, and fourth workstations. Correspondingly, the rotary table drives the cutting tools on the spindle chuck to rotate sequentially to different workstations for processing. Below the loading and unloading unit are a loading tray and a unloading tray. The loading and unloading unit is used to pick up the cutting tools to be processed from the loading tray and transport them to the spindle chuck of the first workstation, or to pick up the processed cutting tools from the spindle chuck of the first workstation and transport them to the unloading tray. The step-grinding or fishtail grinding unit is used to perform step grinding or fishtail grinding on the cutting tools on the spindle chuck of the second workstation. The left-hand rotation machining unit is used to perform left-hand spiral groove machining on the cutting tools on the spindle chuck of the third workstation, and the right-hand rotation machining unit is used to perform right-hand spiral groove machining on the cutting tools on the spindle chuck of the fourth workstation.

[0006] Preferably, the front-to-back direction of the worktable is the Y-axis direction, the left-to-right direction is the X-axis direction, and the up-to-down direction is the Z-axis direction. The loading and unloading unit includes a Y-axis drive module that can reciprocate along the Y-axis direction, as well as a detection mechanism and a rotation mechanism set on the Y-axis drive module. The rotation mechanism is equipped with a pushing mechanism, and the pushing mechanism is equipped with a gripper mechanism.

[0007] Preferably, a conveying mechanism capable of reciprocating along the X-axis is provided below the loading and unloading unit, and the loading tray and unloading tray are mounted on the conveying mechanism.

[0008] Preferably, the step-fishtail unit includes a step mechanism and a fishtail mechanism. The step mechanism includes a motor and a mechanical shaft that are driven together, and a step grinding wheel is connected to the mechanical shaft.

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

[0010] Preferably, the left-hand rotary machining unit includes a first electric spindle mounted on the worktable, and a first grinding wheel connected to the output end of the first electric spindle. The first grinding wheel is used to perform left-hand helical groove machining on the tool on the spindle chuck of the third station.

[0011] Preferably, the right-hand rotary machining unit includes a second electric spindle mounted on the worktable, and a second grinding wheel connected to the output end of the second electric spindle. The second grinding wheel is used to perform right-hand helical groove machining on the tool on the spindle chuck of the fourth station.

[0012] Preferably, a circular mounting platform is provided in the middle of the workbench, and a rotary table is provided on the mounting platform. A guide cylinder and a push cylinder are provided on the mounting platform below the rotary chuck of the first station. The guide cylinder is used to clamp and position the tool on the rotary chuck of the first station, and the push cylinder is used to release the clamping limit of the rotary chuck of the first station on the tool.

[0013] Preferably, a support mechanism is provided on the periphery of the mounting platform below the spindle chucks of the second, third, and fourth workstations to support the tools on the spindle chucks.

[0014] Preferably, the support mechanism includes a fixing member, a pressure plate, and a drive cylinder. The fixing member has a V-shaped groove for placing the tool. The drive cylinder is located on one side of the support plate. The output end of the drive cylinder is connected to the pressure plate. The drive cylinder drives the pressure plate to rotate up and down to release or press the tool.

[0015] This utility model has the following beneficial effects:

[0016] This utility model's milling cutter processing equipment can perform step grinding or fishtail grinding on cutting tools. It can be used for processing new cutting tools or for secondary processing of milling cutters that have been reduced in size. That is, it is necessary to grind away the steps of the original milling cutter to form a cylindrical bar with a smaller diameter for secondary processing. At the same time, the rotary structure layout allows four stations to perform their respective processing work simultaneously without interfering with each other. The processing flow is simple, the processing time is short, the work efficiency is high, the grinding quality is good, and the equipment occupies a small area and does not require many operators, thus saving labor costs. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0018] Figure 2 This is a top view of an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the loading and unloading unit according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the stepped fishtail unit according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the left-handed machining unit according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the right-hand rotary machining unit according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the support mechanism according to an embodiment of the present utility model.

[0024] Attached diagram labels: 1. Worktable, 2. Mounting platform, 3. Guide cylinder, 4. Ejector cylinder, 5. Rotary table, 6. Rotary shaft chuck, 7. Drive unit, 8. Y-axis drive module, 9. Detection mechanism, 10. Rotation mechanism, 11. Pushing mechanism, 12. Gripper mechanism, 13. Step mechanism, 131. Motor, 132. Mechanical axis, 133. Step grinding wheel, 14. Fishtail mechanism, 141. Fishtail electric spindle, 142. Fishtail grinding wheel, 15. First electric spindle, 16. First grinding wheel, 17. Second electric spindle, 18. Second grinding wheel, 19. First Y-axis drive mechanism, 20. First X-axis drive mechanism, 21. Second Y-axis drive mechanism, 22. First Z-axis adjustment mechanism, 23. First sway plate, 24. Second X-axis drive mechanism, 25. Second Z-axis adjustment mechanism, 26. Second sway plate, 27. Support mechanism, 271. Fixing component, 272. Pressure plate, 273. Drive cylinder, 28. Conveying mechanism, 29. Loading tray, 30. Unloading tray. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] See Figure 1-7 As shown in the figure, as an embodiment of the present invention, a milling cutter processing device is provided, including a worktable 1. A clamping unit is provided in the middle of the worktable 1. The worktable 1 is provided with a first, second, third, and fourth workstation in sequence along the circumferential direction. The first, second, third, and fourth workstations are respectively provided with a loading / unloading unit, a step-fishtail unit, a left-hand machining unit, and a right-hand machining unit. Specifically, the loading / unloading unit, the step-fishtail unit, the left-hand machining unit, and the right-hand machining unit are arranged in sequence along the outer periphery of the worktable 1 in a counterclockwise direction. The clamping unit includes a rotary table 5, four rotary chucks 6 arranged circumferentially on the rotary table 5, and a driving component 7 for driving the rotary table 5 to lift and rotate. The included angle between any two adjacent rotary chucks 6 is 90°. The rotary chucks 6 are used to clamp and rotate the cutting tool. The rotary table 5 rotates the four chucks 6, which correspond to the first, second, third, and fourth workstations respectively. The rotary table 5 drives the cutting tools on the chucks 6 to rotate sequentially to different workstations for processing. The loading and unloading unit is equipped with a loading plate 29 and a unloading plate 30 below it. The loading and unloading unit is used to pick up the cutting tools to be processed on the loading plate 29 and transport them to the chucks 6 of the first workstation, or to pick up the processed cutting tools on the chucks 6 of the first workstation and transport them to the unloading plate 30. The step-grinding or fishtail grinding unit is used to perform step grinding or fishtail grinding on the cutting tools on the chucks 6 of the second workstation. The left-hand rotation processing unit is used to perform left-hand spiral groove processing on the cutting tools on the chucks 6 of the third workstation, and the right-hand rotation processing unit is used to perform right-hand spiral groove processing on the cutting tools on the chucks 6 of the fourth workstation.

[0027] This utility model's milling cutter processing equipment can perform step grinding or fishtail grinding on cutting tools. It can be used for processing new cutters, that is, processing new cylindrical bars without steps. In the second station, step grinding is not required; fishtail grinding can be performed directly. It can also be used for secondary processing of milling cutters that have been reduced in size. In this case, step grinding is required in the second station to grind away the original milling cutter's steps, forming a cylindrical bar with a smaller diameter. Then, fishtail grinding is performed, thus realizing the secondary processing of milling cutters that have been reduced in size. At the same time, the rotary structure layout allows the four stations to perform their respective processing work simultaneously without interfering with each other. The processing flow is simple, the processing time is short, the work efficiency is high, the grinding quality is good, and the equipment occupies a small area, requiring fewer operators and saving labor costs.

[0028] In this embodiment, the front-to-back direction of the worktable 1 is the Y-axis direction, the left-to-right direction is the X-axis direction, and the up-to-down direction is the Z-axis direction. The loading and unloading unit includes a Y-axis drive module 8 that can reciprocate along the Y-axis direction, as well as a detection mechanism 9 and a rotation mechanism 10 disposed on the Y-axis drive module 8. The rotation mechanism 10 is provided with a pushing mechanism 11, and the pushing mechanism 11 is provided with a gripper mechanism 12. The components of the loading and unloading unit cooperate with each other to achieve precise loading and unloading of the tool.

[0029] In this embodiment, a conveying mechanism 28 that can reciprocate along the X-axis is provided below the loading and unloading unit. The loading tray 29 and the unloading tray 30 are disposed on the conveying mechanism 28. When loading is required, the conveying mechanism 28 drives the loading tray 29 to move directly below the loading and unloading unit. When unloading is required, the conveying mechanism 28 drives the unloading tray 30 to move directly below the loading and unloading unit.

[0030] In this embodiment, the step-grinding fishtail unit includes a step-grinding mechanism 13 and a fishtail mechanism 14. The step-grinding mechanism 13 includes a motor 131 and a mechanical shaft 132 connected to the drive. A step-grinding wheel 133 is connected to the mechanical shaft 132. The fishtail mechanism 14 includes a fishtail electric spindle 141 and a fishtail grinding wheel 142 connected to the fishtail electric spindle 141. The step-grinding fishtail unit performs step-grinding or fishtail grinding on the cutting tool. Only one of the two can be selected for processing at the same time.

[0031] In this embodiment, the left-hand rotary machining unit includes a first electric spindle 15 disposed on the worktable 1. The output end of the first electric spindle 15 is connected to a first grinding wheel 16. The first grinding wheel 16 is used to perform left-hand helical groove machining on the tool on the spindle chuck 6 of the third station.

[0032] In this embodiment, the right-hand rotary machining unit includes a second electric spindle 17 disposed on the worktable 1. The output end of the second electric spindle 17 is connected to a second grinding wheel 18. The second grinding wheel 18 is used to perform right-hand helical groove machining on the tool on the spindle chuck 6 of the fourth station.

[0033] The second workstation is equipped with an XY axis drive assembly, which includes a first Y-axis drive mechanism 19 and a first X-axis drive mechanism 20. The step fishtail unit is set on the XY axis adjustment assembly. The first Y-axis drive mechanism 19 and the first X-axis drive mechanism 20 are used to adjust and control the position of the step fishtail unit in the Y-axis and X-axis directions, respectively, thereby driving the step fishtail unit to move to perform step grinding or grinding fishtail processing.

[0034] The third station is equipped with a left-hand rotation adjustment assembly, which includes a second Y-axis drive mechanism 21, a first Z-axis adjustment mechanism 22, and a first deflection disk 23. The first Z-axis adjustment mechanism 22 is mounted on the first deflection disk 23, which is mounted on the first Y-axis drive mechanism 19. The left-hand rotation machining unit is mounted on the first Z-axis adjustment mechanism 22. The first Z-axis adjustment mechanism 22 is used to adjust the position of the left-hand rotation machining unit in the Z-axis direction. The second Y-axis drive mechanism 21 drives the first grinding wheel 16 to move back and forth along the Y-axis direction to perform left-hand spiral groove machining on the tool. The first deflection disk 23 adjusts the deflection angle of the first grinding wheel 16 to meet the machining angle requirements of the left-hand spiral groove of different tools.

[0035] The fourth station is equipped with a right-hand rotation adjustment assembly, which includes a second X-axis drive mechanism 24, a second Z-axis adjustment mechanism 25, and a second deflection disk 26. The second Z-axis adjustment mechanism 25 is mounted on the second deflection disk 26, and the second deflection disk 26 is mounted on the second X-axis drive mechanism 24. The right-hand rotation machining unit is mounted on the second Z-axis adjustment mechanism 25. The second Z-axis adjustment mechanism 25 is used to adjust the position of the right-hand rotation machining unit in the Z-axis direction. The second X-axis drive mechanism 24 drives the second grinding wheel 18 to move back and forth along the X-axis direction to perform right-hand spiral groove machining on the tool. The second deflection disk 26 adjusts the deflection angle of the second grinding wheel 18 to meet the machining angle requirements of the right-hand spiral groove of different tools.

[0036] In this embodiment, a circular mounting platform 2 is provided in the middle of the workbench 1, and a rotary table 5 is provided on the mounting platform 2. A guide cylinder 3 and a top cylinder 4 are provided on the mounting platform 2 below the rotary chuck 6 corresponding to the first station. The guide cylinder 3 is used to clamp and position the tool on the rotary chuck 6 of the first station, so that the gripper mechanism 12 can insert the tool into the fixed position on the rotary chuck 6. The top cylinder 4 is used to release the clamping limit of the rotary chuck 6 of the first station on the tool, so that the gripper mechanism 12 can take the tool out of the rotary chuck 6.

[0037] In this embodiment, support mechanisms 27 are respectively provided below the chucks 6 of the second, third, and fourth workstations on the periphery of the mounting platform 2 to support the tools on the chucks 6. Specifically, the support mechanism 27 includes a fixing member 271, a pressure plate 272, and a drive cylinder 272. The fixing member 271 has a V-shaped groove for placing the tool. The drive cylinder 272 is located on one side of the support plate, and the output end of the drive cylinder 272 is connected to the pressure plate 272. The drive cylinder 272 drives the pressure plate 272 to rotate up and down to release or press the tool. The rear end of the tool is held by the chuck 6, and the front end of the tool is supported by the support mechanism 27. This ensures that the tool has stable support under it when the step fishtail unit, the left-hand machining unit, and the right-hand machining unit are machining the front end of the tool, thereby reducing the impact of cutting stress on the tool.

[0038] The machining steps for the cutting tool in this invention are as follows:

[0039] The cutting tool to be processed is placed on the loading tray 29, which is then conveyed to the bottom of the loading and unloading unit via the conveying mechanism 28. The gripper mechanism 12 of the loading and unloading unit picks up the cutting tool from the loading tray 29 and inserts it into the rotary chuck 6 at the first station. The drive mechanism drives the rotary table 5 to rotate 90° each time, so that the cutting tool on the rotary chuck 6 passes through the second, third, and fourth stations in sequence for the step-grinding or fish-tail grinding unit, the left-hand spiral processing unit, and the right-hand spiral processing unit to perform step-grinding or fish-tail grinding, left-hand spiral groove processing, and right-hand spiral groove processing, respectively. After the cutting tool is processed, it rotates back to the first station, and the unloading tray 30 is conveyed to the bottom of the loading and unloading unit via the conveying mechanism 28. The gripper mechanism 12 of the loading and unloading unit removes the processed cutting tool and places it in the unloading tray 30.

[0040] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A milling cutter machining equipment, characterized in that: The worktable includes a clamping unit in its center. The worktable has four stations arranged sequentially along its circumference: a loading / unloading unit, a step-fishtail unit, a left-hand machining unit, and a right-hand machining unit. The clamping unit includes a rotary table, four circumferentially mounted rotary chucks, and a drive mechanism for lifting and rotating the rotary table. The rotary chucks are used to clamp and rotate the cutting tool. The four rotary chucks correspond to the first, second, third, and fourth stations, respectively. The rotary table drives the rotary chucks... The cutting tools rotate sequentially to different workstations for processing. Below the loading and unloading unit are loading and unloading trays. The loading and unloading unit is used to pick up the cutting tools to be processed from the loading tray and transport them to the spindle chuck of the first workstation, or to pick up the processed cutting tools from the spindle chuck of the first workstation and transport them to the unloading tray. The step-grinding or fishtail grinding unit is used to perform step grinding or fishtail grinding on the cutting tools on the spindle chuck of the second workstation. The left-hand rotation processing unit is used to perform left-hand spiral groove processing on the cutting tools on the spindle chuck of the third workstation, and the right-hand rotation processing unit is used to perform right-hand spiral groove processing on the cutting tools on the spindle chuck of the fourth workstation. A circular mounting platform is provided in the middle of the workbench, and a rotary table is provided on the mounting platform. A guide cylinder and a push cylinder are provided on the mounting platform below the rotary chuck of the first station. The guide cylinder is used to clamp and position the tool on the rotary chuck of the first station, and the push cylinder is used to release the clamping limit of the rotary chuck of the first station on the tool. Support mechanisms are provided on the periphery of the mounting table below the spindle chucks of the second, third, and fourth workstations to support the tools on the spindle chucks. The support mechanism includes a fixing component, a pressure plate, and a drive cylinder. The fixing component has a V-shaped groove for placing the cutting tool. The drive cylinder is located on one side of the support plate. The output end of the drive cylinder is connected to the pressure plate. The drive cylinder drives the pressure plate to rotate up and down to release or press the cutting tool.

2. The milling cutter processing equipment according to claim 1, characterized in that: The front-to-back direction of the worktable is the Y-axis direction, the left-to-right direction is the X-axis direction, and the up-to-down direction is the Z-axis direction. The loading and unloading unit includes a Y-axis drive module that can reciprocate along the Y-axis direction, as well as a detection mechanism and a rotation mechanism set on the Y-axis drive module. The rotation mechanism is equipped with a pushing mechanism, and the pushing mechanism is equipped with a gripper mechanism.

3. The milling cutter processing equipment according to claim 2, characterized in that: Below the loading and unloading unit is a conveying mechanism that can reciprocate along the X-axis, and the loading and unloading trays are mounted on the conveying mechanism.

4. The milling cutter processing equipment according to claim 1, characterized in that: The step-fishtail unit includes a step mechanism and a fishtail mechanism. The step mechanism includes a motor and a mechanical shaft that are connected for drive. A step grinding wheel is connected to the mechanical shaft.

5. The milling cutter processing equipment according to claim 4, characterized in that: The fishtail mechanism includes a fishtail electric spindle and a fishtail grinding wheel connected to the fishtail electric spindle.

6. The milling cutter processing equipment according to claim 1, characterized in that: The left-hand machining unit includes a first electric spindle mounted on the worktable. The output end of the first electric spindle is connected to a first grinding wheel, which is used to perform left-hand helical groove machining on the tool on the spindle chuck of the third station.

7. The milling cutter processing equipment according to claim 1, characterized in that: The right-hand rotary machining unit includes a second electric spindle mounted on the worktable. The output end of the second electric spindle is connected to a second grinding wheel, which is used to perform right-hand helical groove machining on the tool on the spindle chuck of the fourth station.

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