CN-121972693-A - Adjustable reverse boring groove cutter

CN121972693ACN 121972693 ACN121972693 ACN 121972693ACN-121972693-A

Abstract

The invention discloses an adjustable reverse boring groove cutter, which comprises a cutter bar, wherein a jogged protruding block is arranged on the cutter bar, a cutter holder is connected to the jogged protruding block in a clamping way, the cutter holder comprises a radial extension part, the radial extension part protrudes along the radial direction of the cutter bar, a mounting groove is arranged on the radial extension part, the mounting groove comprises a forward cutter groove and a pull-back cutter groove, the forward cutter groove and the pull-back cutter groove are respectively arranged at two ends of the radial extension part along the axial direction of the cutter bar, and blades are respectively arranged on the forward cutter groove and the pull-back cutter groove. The invention provides an adjustable reverse boring groove cutter, which can use the same cutter to process the front and the back, reduce the disassembly and assembly steps and the positioning steps, improve the processing efficiency and improve certain processing precision.

Inventors

YU CHENGDONG
QIAN XIAODONG
ZHOU JINHUA
XIE RUYING
SHEN FENG

Assignees

杭州大和热磁电子有限公司

Dates

Publication Date: 20260505
Application Date: 20251231

Claims (10)

1. The utility model provides a boring the slot sword with adjustable, its characterized in that, including the cutter arbor, be provided with the gomphosis lug on the cutter arbor, the block is connected with the blade holder on the gomphosis lug, the blade holder is including radial extension portion, radial extension portion is protruding along the radial direction of cutter arbor, be provided with the mounting groove on the radial extension portion, the mounting groove is including forward sword groove and pullback sword groove, forward sword groove and pullback sword groove set up at radial extension portion both ends along cutter arbor axial direction respectively, all be provided with the blade on forward sword groove and the pullback sword groove.
2. An adjustable reverse boring cutter as claimed in claim 1, wherein the forward and reverse cutter grooves are aligned in the axial direction of the cutter bar.
3. An adjustable reverse boring cutter as claimed in claim 1, wherein the blade comprises a cutting bit and a spare bit.
4. An adjustable reverse boring cutter according to claim 3, wherein the cutting bit and the spare bit are arranged centrally and symmetrically, the cutting bit and the spare bit being arranged in a "Z" shape, the cutting bit being arranged adjacent the outer side of the cutter holder.
5. An adjustable reverse boring cutter according to claim 1, wherein the radially outer extension comprises an outer curved surface and an inner planar surface, the mounting slot being disposed in the inner planar surface, the mounting slot being aligned with the cutter bar axis.
6. The adjustable reverse boring cutter according to any one of claims 1-5, wherein the radially extending portion is connected with a claw-shaped protrusion, the blade comprising an outer portion protruding from the radially extending portion when the blade is disposed in the mounting groove, the claw-shaped protrusion abutting the partial outer portion, the outer portion comprising a cutting portion protruding from the claw-shaped protrusion.
7. The adjustable reverse boring cutter according to claim 6, wherein the claw is connected to the radially extending portion in a protruding and rotating manner, the claw is provided with an adjusting lever connected to the radially extending portion, the rotating portion is provided with a coating groove attached to the arc surface of the rotating portion, and the coating groove is concentric with the adjusting lever.
8. The adjustable reverse boring cutter as described in claim 7, wherein a torsion spring is disposed between the claw outer protrusion and the radially outer extension, the claw outer protrusion being rotatable relative to the radially outer extension.
9. An adjustable reverse boring cutter according to any one of claims 1-5, wherein a trimming slot is provided between the forward and return cutter slots, and a trimming bolt is provided on the trimming slot, the trimming bolt passing through the cutter seat and abutting the engagement projection.
10. An adjustable reverse boring cutter according to any one of claims 1-5, wherein the tool holder is provided with an axial bore, the axial bore being connected with a locking bolt, the locking bolt passing through the axial bore and being threadedly connected to the mating projection.

Description

Adjustable reverse boring groove cutter Technical Field The invention relates to the technical field of cutters, in particular to an adjustable reverse boring groove cutter. Background For example, bulletin number CN208408575U discloses a cutting knife capable of processing an external groove, which comprises a knife head and a knife handle, wherein the knife head is fixedly arranged on the top wall of the knife handle, a blade is arranged on the front wall of the knife head and comprises a first blade, a second blade and a third blade, the rear angles of the first blade and the third blade are 3-5 degrees, the rear angle of the second blade is 15-30 degrees, an oblique angle structure is arranged at the top of the knife handle, and the rear angles of 3-5 degrees are arranged on the first blade and the third blade. However, in practical application, when processing the through hole, the front and back sides of the through hole need to be processed, two cutters are used, the operation is complex, and the multiple steps of disassembly and positioning are needed, so that the efficiency and the processing precision are affected. Disclosure of Invention Aiming at the problems that in the prior art, multiple tools are required to be used for machining and efficiency and precision are affected, the invention provides an adjustable reverse boring groove cutter which can be used for machining front and back surfaces by using the same cutter, so that the disassembly and assembly steps and the positioning steps are reduced, the machining efficiency is improved, and meanwhile, certain machining precision is improved. In order to achieve the above purpose, the present invention adopts the following technical scheme. The utility model provides a boring the slot sword with adjustable, is including the cutter arbor, be provided with the gomphosis lug on the cutter arbor, the block is connected with the blade holder on the gomphosis lug, the blade holder is including radial extension portion, radial extension portion is protruding along the radial direction of cutter arbor, be provided with the mounting groove on the radial extension portion, the mounting groove is including forward sword groove and pullback sword groove, forward sword groove and pullback sword groove set up at radial extension portion both ends along cutter arbor axial direction respectively, all be provided with the blade on forward sword groove and the pullback sword groove. In the prior art, the front side and the back side of the through hole are required to be machined, the size and the position of the machined groove are generally symmetrically arranged, so that two cutters are required to be arranged in a reverse symmetry mode in the machining process, the two cutters are required to be positioned and assembled, in order to avoid interference influence on a workpiece in the machining process, after the machining of one side is finished, the cutter on the other side is required to be assembled and positioned, the cutter on the machined side is disassembled, the labor capacity is doubled, if the workpiece is a complex workpiece, and if the through hole is only arranged at a local position of the workpiece, the cutter is possibly blocked by interference of other areas of the workpiece in the back side area of the through hole, and therefore, the problem of interference in the machining process of the back side groove of the through hole is also required to be considered, the cutter installation state in the front side machining process and the cutter installation state in the back side machining process are different, the time cost in the positioning and installation process is increased, and the operation difficulty is also increased. In order to solve the problems, in the application, the cutter holder is connected to the cutter bar, wherein the cutter holder and the cutter bar are in clamping connection through the embedded convex blocks, the connection stability between the cutter bar and the cutter holder can be improved through the clamping connection of the embedded convex blocks, the installation convenience and the installation efficiency between the cutter bar and the cutter holder can be improved, and the cutter bar can be pre-positioned through the embedded convex blocks, so that the follow-up bolt connection and fastening are convenient; the cutter holder is provided with a radial extension part, wherein the radial extension part extends along the radial direction of the cutter bar, the mounting groove can be far away from the cutter bar through the cutter holder extension part, the cutter blade is mounted in the mounting groove, the mounting groove comprises a forward cutter groove and a reverse cutter groove, wherein the connecting line of the forward cutter groove and the reverse cutter groove is parallel to the axis of the cutter bar, the forward cutter groove and the reverse cutter groove are respectively arranged at two ends of the r