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CN-224209742-U - Multi-blade cutterhead and cutter assembly

CN224209742UCN 224209742 UCN224209742 UCN 224209742UCN-224209742-U

Abstract

The utility model discloses a multi-blade cutterhead and a cutter assembly, wherein the multi-blade cutterhead comprises a cutter handle mounting part and at least two blade mounting parts, the cutter handle mounting parts can be detachably connected with a cutter handle body, the at least two blade mounting parts are sequentially and evenly arranged at intervals in the circumferential direction of the cutter handle mounting parts in an outward extending mode, a neutral gear between any two adjacent blade mounting parts is set to be a blade empty area, each blade mounting part is sequentially provided with a blade inner empty area and a blade interface from inside to outside, the scouring force of externally spraying cooling liquid to the middle area of the cutter can be increased through the arrangement of the blade empty area and the blade inner empty area, chips are easily discharged, the phenomenon of poor cutter seal can be avoided, and the cooling effect of the cutterhead can be effectively improved through the common arrangement of the blade empty area and the blade inner empty area, so that the processing precision is improved.

Inventors

  • ZHOU SHUHONG
  • LONG TAO

Assignees

  • 蓝思科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (10)

  1. 1. A multi-bladed cutterhead, the multi-bladed cutterhead comprising: A tool shank mounting part (100) which can be detachably connected with the tool shank body; At least two blade mounting parts (200) are arranged in the circumferential direction of the tool handle mounting part (100) in a sequentially and evenly-spaced outwards extending mode, a blank space between any two adjacent blade mounting parts (200) is set to be a blade empty space (300), and each blade mounting part (200) is sequentially provided with a blade empty space (230) and a blade interface (221) from inside to outside.
  2. 2. The multi-edge cutterhead according to claim 1, wherein a circumference of an outer ring of the holder mounting portion (100) is a first circumference, a circumference of an outer ring of at least two edge mounting portions (200) is a second circumference concentric with the first circumference, and each edge mounting portion (200) is a sector shape having the first circumference as an inner circle and the second circumference as an outer circle.
  3. 3. The multi-edge cutterhead according to claim 2, characterized in that the edge mounting portion (200) comprises a connecting body portion (210) and a mounting body portion (220) which are sequentially connected from inside to outside, the connecting body portion (210) is connected with the shank mounting portion (100) to the first circumference, an outer ring of the mounting body portion (220) is set to the second circumference, the connecting body portion (210) and the mounting body portion (220) are connected with a third circumference between the first circumference and the second circumference, the edge hollow zone (230) is provided on the connecting body portion (210) and extends from the first circumference to the third circumference to divide the connecting body portion (210) into two connecting ribs (211), and the edge interface (221) is provided on the mounting body portion (220).
  4. 4. A multi-edge cutterhead according to claim 3, characterized in that the ratio of the length of the shank mounting portion (100) to the length of the edge mounting portion (200) in the radial direction is set to 1 (2.5-3.5); And/or the length ratio of the connecting ribs (211) to the mounting body (220) in the radial direction is set to be 1 (0.37-0.57); And/or the lengths of the connecting ribs (211) in the arc length direction are gradually increased from inside to outside; And/or, the minimum length of each connecting rib (211) in the arc length direction is greater than a set length which is equal to 6% of the circumferential diameter of the blade interface (221); And/or, the orthographic projection area of the single blade inner empty area (230) is 2-3.5 times of the orthographic projection area of the single connecting rib (211); And/or the thickness of the connecting ribs (211) is set to be more than 5mm; And/or the length of the connecting ribs (211) in the radial direction is set to be more than 10mm; and/or the ratio of the width of the blade interface (221) in the radial direction to the width of the mounting body (220) in the radial direction is (0.23-0.43): 1.
  5. 5. The multi-bladed cutterhead according to claim 1, characterized in that said in-bladed hollow zone (230) is profiled with said blade mounting portion (200); And/or the in-blade void (230) is centrally disposed in the arc length direction of the blade mounting portion (200).
  6. 6. The multi-bladed cutterhead of claim 1, wherein the ratio of the orthographic projected area of a single said interbladed hollow zone (230) to the orthographic projected area of a single said interbladed hollow zone (300) is 1 (4-5); And/or the sum of the orthographic projection areas of all the interedge empty areas (300) and the orthographic projection areas of all the interedge empty areas (230) accounts for 42% -58% of the total area of the cutter head; And/or the number of the cutter edge mounting parts (200) is three, and the three cutter edge mounting parts (200) are sequentially and uniformly arranged at intervals in a protruding mode outwards in the circumferential direction of the cutter handle mounting part (100); And/or, the central angles of the blade mounting parts (200) are set to be 60 degrees; and/or, the central angles of the single blade-space areas (300) are set to be 60 degrees.
  7. 7. A multi-edge cutterhead according to claim 3, characterized in that the mounting body (220) protrudes from the connecting body (210) at a side facing away from the shank body and is provided with the edge interface (221), the edge interface (221) being adapted for mounting of a grinding section (400); and/or, the outer ring of the mounting body (220) is provided with a first fastening hole (222) communicated with the blade interface (221), and the first fastening hole (222) can be used for a first fastening piece to penetrate and tightly support the grinding part (400) in the blade interface (221); And/or the mounting body (220) is provided with at least two dynamic balance mounting holes (223) at intervals in sequence in the arc length direction.
  8. 8. A multi-edge cutterhead according to claim 3, wherein the circumference of the edge interface (221) is a fourth circumference, the edge interface (221) is arranged on the fourth circumference concentric with the second circumference and penetrates the mounting body (220) in both directions on the fourth circumference; The length of the blade mounting part (200) in the radial direction is set to be 30% -40% of the fourth circumference diameter, and/or the width of the mounting body part (220) in the radial direction is set to be 5% -25% of the fourth circumference diameter.
  9. 9. The multi-edge cutterhead according to any one of claims 1 to 8, wherein a side of the edge mounting portion (200) facing the extension direction of the shank body is inclined in a direction away from the shank body in a direction from inside to outside, and an inclination angle is set to 15 ° to 25 °.
  10. 10. A tool assembly, characterized in that the tool assembly comprises a tool shank body, a grinding part (400) and a multi-blade cutterhead according to any one of claims 1-9, the tool shank body is detachably connected with a tool shank mounting part (100) of the multi-blade cutterhead, the grinding part (400) is mounted at a blade interface (221) of each blade mounting part (200), and both ends of the grinding part (400) are located in the blade interface (221).

Description

Multi-blade cutterhead and cutter assembly Technical Field The utility model belongs to the technical field of machining cutters, and particularly relates to a multi-edge cutter head and a cutter assembly. Background In order to ensure the flatness of the product, the traditional grinding wheel generally adopts a large cutter to cover the plane of the product, so that the thickness of the processed finished product is uniform. However, the traditional external spraying cooling liquid has small scouring force to the middle area of the cutter, so that the chips are difficult to discharge, and the chips which are not discharged move along with the cutter head processing and are extruded by the product to generate poor cutter mark, thereby easily causing scrapping of the product. Disclosure of utility model In order to overcome the defects or shortcomings, the utility model provides a multi-edge cutter disc and a cutter assembly, and aims to solve the technical problem that poor cutter printing is caused by difficult discharge of chips in the middle area of the existing large disc cutter. In order to achieve the above purpose, the first aspect of the present utility model provides a multi-blade cutterhead, wherein the multi-blade cutterhead comprises a cutter handle mounting portion and at least two blade mounting portions, the cutter handle mounting portion is detachably connected with a cutter handle body, the at least two blade mounting portions are sequentially and evenly arranged at intervals in an extending mode in the circumferential direction of the cutter handle mounting portion, a gap between any two adjacent blade mounting portions is set as a blade empty area, and each blade mounting portion is sequentially provided with a blade inner empty area and a blade interface from inside to outside. In an embodiment of the present utility model, the circumference of the outer ring of the tool holder mounting part is a first circumference, the circumference of the outer ring of the at least two blade mounting parts is a second circumference concentric with the first circumference, and each blade mounting part is a sector shape with the first circumference as an inner circle and the second circumference as an outer circle. In an embodiment of the utility model, the blade mounting part comprises a connecting body part and a mounting body part which are sequentially connected from inside to outside, the connecting body part is connected with the cutter handle mounting part to form a first circumference, the outer ring of the mounting body part is set to be a second circumference, the connecting body part and the mounting body part are connected to a third circumference between the first circumference and the second circumference, the blade hollow area is arranged on the connecting body part and extends from the first circumference to the third circumference so as to divide the connecting body part into two connecting ribs, and the blade interface is arranged on the mounting body part. In one embodiment of the present utility model, the ratio of the length of the shank mounting portion to the length of the blade mounting portion in the radial direction is set to 1 (2.5-3.5). In one embodiment of the present utility model, the ratio of the length of the connecting rib to the length of the mounting body in the radial direction is set to 1 (0.37-0.57). In one embodiment of the present utility model, the lengths of the individual connecting ribs in the arc length direction are arranged in an increasing manner from inside to outside. In one embodiment of the utility model, the minimum length of the single connecting rib in the arc direction is greater than a set length which is equal to 6% of the diameter of the circumference of the blade interface. In an embodiment of the present utility model, the orthographic projection area of the single-blade hollow area is 2 times to 3.5 times of the orthographic projection area of the single connecting rib. In one embodiment of the utility model, the thickness of the connecting ribs is set to be greater than 5mm. In one embodiment of the utility model, the length of the connecting ribs in the radial direction is set to be greater than 10mm. In one embodiment of the utility model, the ratio of the width of the blade interface in the radial direction to the width of the mounting body in the radial direction is (0.23-0.43): 1. In one embodiment of the present utility model, the in-blade space is contoured with the blade mounting portion. In one embodiment of the utility model, the in-blade void is centered in the arc length direction of the blade mounting portion. In an embodiment of the present utility model, a ratio of the orthographic projection area of the single-blade hollow space to the orthographic projection area of the single-blade hollow space is 1 (4-5). In one embodiment of the present utility model, the sum of the orthographic projection areas of all the lands and the