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CN-224223999-U - Hob assembly

CN224223999UCN 224223999 UCN224223999 UCN 224223999UCN-224223999-U

Abstract

The utility model provides a hob assembly, which comprises a mounting shaft, an annular cutter and a cutter rest, wherein the cutter rest comprises a mounting part and a limiting part, the mounting part comprises an annular mounting part sleeved on the mounting shaft and a locking part connected with the annular mounting part, the locking part is provided with a first end and a second end which are opposite, the first end and the second end are connected through a fastening connecting part so that the locking part is fixed on the mounting shaft in a surrounding manner, a plurality of limiting grooves are formed in the outer surface of the annular mounting part, which is opposite to the locking part, the limiting part is sleeved on the mounting shaft and is connected with the annular mounting part through a connecting part arranged in the limiting grooves, the annular cutter is sleeved on the mounting shaft and is positioned between the outer surface and the limiting part in the axial direction of the mounting shaft, the connecting part penetrates through the annular cutter, and the central axis of the annular cutter is parallel to the axial direction. The utility model solves the problem of poor cutting of materials in the using process of the hob assembly.

Inventors

  • MA JIAHONG
  • HE ZIFENG

Assignees

  • 江苏生益特种材料有限公司

Dates

Publication Date
20260512
Application Date
20250730

Claims (10)

  1. 1. A hob assembly, comprising: A mounting shaft; an annular knife; The tool rest comprises a mounting part and a limiting part, wherein the mounting part comprises an annular mounting part sleeved on a mounting shaft and a locking part connected with the annular mounting part, the locking part is provided with a first end and a second end which are opposite, the first end and the second end are connected through a fastening connecting part so that the locking part is fixed on the mounting shaft in a surrounding mode, a plurality of limiting grooves are formed in the outer surface of the annular mounting part, the limiting part is sleeved on the mounting shaft and is connected with the annular mounting part through a connecting part arranged in the limiting grooves, the annular tool is sleeved on the mounting shaft and is located between the outer surface and the limiting part in the axial direction of the mounting shaft, and the connecting part penetrates through the annular tool and is parallel to the axial direction of the central axis of the annular tool.
  2. 2. The hob assembly according to claim 1, characterized in, that the annular mounting part and the locking part are arranged at intervals in the axial direction of the mounting shaft, the annular mounting part and the locking part being connected by a connecting part.
  3. 3. The hob assembly according to claim 2, characterized in, that the number of connection elements connecting the first and the second end is arranged at least two, at least two of said connection elements being arranged at intervals along the axial direction.
  4. 4. The hob assembly according to claim 1, characterized in that a plurality of the limit grooves are provided on the outer surface at intervals along the circumferential direction of the mounting shaft, one mounting hole is provided on the annular cutter corresponding to each limit groove, and one mounting through hole is provided on the limit piece corresponding to each mounting hole.
  5. 5. The hob assembly according to claim 4, characterized in that the connecting piece provided in the limit groove is penetrated in the mounting hole and the mounting through hole corresponding to the limit groove, the limit piece is connected to the annular mounting portion by the aforementioned connecting piece, and the spacing between the outer surface and the limit piece in the axial direction of the mounting shaft is a predetermined spacing.
  6. 6. The hob assembly according to claim 5, characterized in, that the limit piece is arranged in a truncated cone-shaped structure, the area of the end of the limit piece close to the outer surface being smaller than the area of the end of the limit piece remote from the outer surface.
  7. 7. The hob assembly according to claim 6, characterized in, that the hob assembly further comprises an elastic member, which is sleeved on the side wall of the limiting member and abuts against the annular knife.
  8. 8. The hob assembly according to claim 4, characterized in that a number of the plurality of limit grooves is four, the limit grooves are provided on the outer surface at uniform intervals along a circumferential direction of the mounting shaft, and the plurality of the mounting holes are provided on the annular cutter at uniform intervals along the circumferential direction of the mounting shaft.
  9. 9. The hob assembly according to claim 5, characterized in, that the distance is set to 1.5-1.7 mm, the thickness of the annular knife in the axial direction of the mounting shaft is 1.3-1.5 mm.
  10. 10. The hob assembly according to claim 1, characterized in, that the annular mounting part further comprises an annular protrusion arranged on the outer surface, the annular protrusion being sleeved on the mounting shaft and protruding away from the outer surface in the axial direction, the inner wall of the annular knife being sleeved on the side wall of the annular protrusion.

Description

Hob assembly Technical Field The utility model relates to the field of mechanical manufacturing and precision machining, in particular to a hob assembly. Background Referring to fig. 1, fig. 1 shows a prior art hob assembly (which may be an upper hob assembly or a lower hob assembly in a cutting device) comprising a mounting shaft 1, a circular knife 2, a mounting bracket 100, a clamping spring 200 and a first resilient member 300. The mounting frame 100 is configured like a hoop, and the mounting frame 100 can be wound around and fixed to a mounting shaft by connecting both ends of the mounting frame 100 through the connecting members. The annular knife 2 is sleeved on the mounting shaft 1 and is connected to the mounting frame through a clamp spring 200. The clamp spring 200 and the mounting frame 100 are reserved at a certain interval in the axial direction of the mounting shaft 1 to form an assembly gap, so that the annular cutter 2 can be conveniently subjected to position fine adjustment in the axial direction. The side wall of the mounting frame 100 is provided with an inclined surface, and the first elastic member 300 is sleeved on the inclined surface and is abutted against the annular cutter 2, so as to apply a damping force on the annular cutter 2 in the axial direction. However, there are problems with this hob assembly. When the connecting members are connected to both ends of the mounting frame 100, the mounting frame 100 may rotate with respect to the vertical direction, resulting in deviation of the cutting edge of the annular knife 2 mounted on the mounting frame 100 from the vertical direction, and in addition, the interval between the mounting frame 100 and the clamp spring 200 is difficult to control, resulting in a certain angle between the central axis of the annular knife with respect to the horizontal direction, which also affects the position of the cutting edge. When the blade is not in the vertical direction, a problem of poor cutting of the material is caused when the material is cut. Disclosure of utility model The utility model aims to provide a hob assembly, which solves the problem of poor material cutting in the use process of the hob assembly in the prior art. In order to achieve the above object of the present utility model, an embodiment of the present utility model provides a hob assembly including: A mounting shaft; the annular knife is sleeved on the mounting shaft; The tool rest comprises a mounting part and a limiting part, wherein the mounting part comprises an annular mounting part sleeved on a mounting shaft and a locking part connected with the annular mounting part, the locking part is provided with a first end and a second end which are opposite, the first end and the second end are connected through a fastening connecting part so that the locking part is fixed on the mounting shaft in a surrounding mode, a plurality of limiting grooves are formed in the outer surface of the annular mounting part, the limiting part is sleeved on the mounting shaft and is connected with the annular mounting part through a connecting part arranged in the limiting grooves, the annular tool is sleeved on the mounting shaft and is located between the outer surface and the limiting part in the axial direction of the mounting shaft, and the connecting part penetrates through the annular tool and is parallel to the axial direction of the central axis of the annular tool. As a further improvement of an embodiment of the present utility model, the annular mounting portion and the locking portion are disposed at intervals in an axial direction of the mounting shaft, and the annular mounting portion and the locking portion are connected by a connecting portion. As a further improvement of an embodiment of the present utility model, the number of the connectors connecting the first end and the second end is at least two, and at least two of the connectors are spaced apart along the axial direction. As a further improvement of an embodiment of the present utility model, a plurality of the limit grooves are provided on the outer surface at intervals along the circumferential direction of the mounting shaft, one mounting hole is provided on the annular cutter corresponding to each limit groove, and one mounting through hole is provided on the limit piece corresponding to each mounting hole. As a further improvement of an embodiment of the present utility model, the connecting piece disposed in the limiting groove is inserted into the mounting hole and the mounting through hole corresponding to the limiting groove, and the limiting piece is connected to the annular mounting portion by the connecting piece, so that a distance between the outer surface and the limiting piece in an axial direction of the mounting shaft is a predetermined distance. As a further improvement of an embodiment of the present utility model, the limiting member is configured in a truncated cone shape, and an area of an e