-
公开(公告)号：US20140175760A1
公开(公告)日：2014-06-26
申请号：US13723027
申请日：2012-12-20
Applicant: KENNAMETAL INC.
Inventor： Josef K. Herud , Ruy Frota de Souza Filho
IPC: B23B31/12
CPC classification number: B23B31/12 , B23B31/1176 , B23B31/1178 , B23B31/305 , B23B2240/08 , B23B2240/11 , B23B2260/126 , Y10T279/1029 , Y10T279/12 , Y10T279/1216 , Y10T279/1249
Abstract: The invention relates to a hydraulic expansion chuck with a basic body, with an expansion bush which is received in the basic body and defines a reception space for a tool to be chucked, and with a pressure chamber which is delimited between the expansion bush and the basic body, at least one solder region being provided, in which the expansion bush is soldered to the basic body, wherein, between the pressure chamber and the solder region, a seal is provided which is formed by an at least essentially fluid-tight bearing contact of the expansion bush against the basic body.
Abstract translation: 本发明涉及一种具有基体的液压膨胀卡盘，其具有容纳在基体中的膨胀衬套，并且限定了用于夹紧工具的接收空间，并且具有限定在膨胀衬套和膨胀衬套之间的压力室 提供至少一个焊接区域，其中将膨胀衬套焊接到基体上，其中在压力室和焊接区域之间设置密封件，该密封件由至少基本上是流体密封的轴承 膨胀套筒与基体接触。
-
公开(公告)号：US12257637B2
公开(公告)日：2025-03-25
申请号：US17706265
申请日：2022-03-28
Applicant: Kennametal Inc.
Inventor： Ruy Frota de Souza Filho
Abstract: A rotary cutting tool includes a tool body including a shank portion and a cutting portion adjoining the shank portion. The cutting portion has a plurality of blades separated by helically twisted flutes. A tunable vibration absorber is disposed within an internal cavity formed in the cutting portion and has a shape that follows the helically twisted flutes. The tunable vibration absorber includes an absorber mass and a resilient material disposed between the absorber mass and an outer wall of the internal cavity. In one aspect, the tunable vibration absorber is tuned to a desired frequency by selecting the mechanical properties of the absorber mass and the resilient material. In another aspect, the tunable vibration absorber is tuned by controlling a pressure of fluid within a main internal fluid cavity disposed within the tunable vibration absorber.
-
公开(公告)号：US20250041949A1
公开(公告)日：2025-02-06
申请号：US18228430
申请日：2023-07-31
Applicant: Kennametal Inc.
Inventor： Ruy Frota de Souza Filho , Austin Baer , Dominik Smidt
IPC: B23B31/30
Abstract: A hydraulic chuck assembly includes a tool support member having an axial bore. An expansion sleeve is received within the axial bore of the tool support member. The expansion sleeve comprises an inner surface, an outer surface and a front flange extending radially outward from the outer surface. A primary pressure chamber is formed between the axial bore of the tool support member and the outer surface of the expansion sleeve. A flexibility of the expansion sleeve is increased by removing material from the expansion sleeve in a vicinity of a front braze ring and a rear braze ring, thereby decreasing a maximum stress in the front braze ring and the rear braze ring. The material is removed by undercuts that form secondary pressure chambers in fluid communication with the primary pressure chamber.
-
公开(公告)号：US20250033122A1
公开(公告)日：2025-01-30
申请号：US18359381
申请日：2023-07-26
Applicant: KENNAMETAL INC.
Inventor： Ruy Frota de Souza Filho , Santhosha Boregowda
IPC: B23B31/117 , B23B31/30
Abstract: A hydraulic chuck may include an expansion sleeve, a plurality of pistons, and an actuator ring. The expansion sleeve may include a bore. The plurality of pistons may be axially mounted in at least one piston chamber of the expansion sleeve. The actuator ring may be rotatably mounted relative to the expansion sleeve. The actuator ring may be configured to actuate the plurality of pistons in the at least one piston chamber to hydraulically expand the expansion sleeve to provide a varying clamping force within the bore.
-
公开(公告)号：US11986893B2
公开(公告)日：2024-05-21
申请号：US17359732
申请日：2021-06-28
Applicant: Kennametal Inc.
CPC classification number: B23C5/2226 , B23C5/006 , B23C5/08 , F16B37/00 , F16B37/044
Abstract: A hardware fastener with a movable threaded element suspended within a cavity formed in a body. The movable threaded element has an internal surface with threads for cooperating with a threaded fastener. The movable threaded element is suspended in the cavity by the one or more spring-like members such that an area, A, of reduced stiffness is created in the cavity proximate the movable threaded element, thereby allowing the movable threaded element to move a predetermined distance within the cavity when torque is applied to the threaded fastener. The one or more spring-like members store elastic potential energy to prevent the loss of pretension of the threaded fastener that can be caused by heat or vibration. The invention also eliminates the need for a torque wrench when tightening the threaded fastener to a specified torque value.
-
Patent Agency Ranking
公开(公告)号：US20240066653A1
公开(公告)日：2024-02-29
申请号：US17894800
申请日：2022-08-24
Applicant: Kennametal Inc.
Inventor： Shuangyuan Zhang , Christoph Gey , Patrick Kuhlemann , Ruy Frota de Souza Filho
CPC classification number: B23Q17/0995 , G06N20/00
Abstract: A system and method for monitoring and predicting wear of a cutting tool used for machining a workpiece is disclosed. The system includes a cutting tool having a shank and a cutting head. The system also includes a split, modular and wireless wear detection system including one or more sensors mounted to the cutting tool for providing a data signal representative of a physical condition of the system, and a data recording and data transmitting device for recording the data signal from the one or more sensors and for generating and transmitting a data signal to a processor. The processor applies a machine learning data processing technique in real time to monitor and/or predict a condition of various components and/or parameters of the system during a metal cutting operation.
-
公开(公告)号：US20240011526A1
公开(公告)日：2024-01-11
申请号：US17811429
申请日：2022-07-08
Applicant: Kennametal Inc.
Inventor： Ruy Frota de Souza Filho , Dominik Schmid
CPC classification number: F16C32/06 , B23Q11/10 , F16C2322/39
Abstract: A cutting tool is provided having a hydrostatic bearing support to minimize bending of the tool when in use. More specifically, a tool is provided comprising a body, a cutting insert, at least one flow pressure supply channel, a hydrostatic bearing, and wherein the flow pressure supply channel is in communication with the hydrostatic bearing, and optionally at least one coolant channel in communication with the cutting insert, and wherein the flow pressure supply channel is in communication with a supply reservoir for containing a lubricant or coolant. The supply reservoir is ultimately in communication with a pump to supply pressure to the hydrostatic bearing when the tool is operational.
-
公开(公告)号：US20220410285A1
公开(公告)日：2022-12-29
申请号：US17359977
申请日：2021-06-28
Applicant: Kennametal Inc.
Inventor： Ruy Frota de Souza Filho , Marcelo Euripedes Silva , Nicholas J. Henry
IPC: B23B51/02
Abstract: A rotary cutting tool with enhanced bump-off capability is disclosed. The cutting tool includes a tool shank having a pocket. A replaceable cutting head is at least partially disposed within the pocket of the tool shank with an interference fit. A coupling pin assembly is at least partially received within a bore of the tool shank. The coupling pin assembly comprises a sleeve member and a coupling pin at least partially disposed within the sleeve member. The sleeve member includes an upper portion and a lower portion having a non-circular cross-sectional shape with a bump-off surface. An actuation screw contacts the coupling pin assembly and causes the replaceable cutting head to move relative to the tool shank. The bump-off surface of the lower portion of the sleeve member extends radially outward with respect to the coupling pin by a distance, D, thereby providing enhanced bump-off capability.
-
公开(公告)号：US11529691B2
公开(公告)日：2022-12-20
申请号：US16700266
申请日：2019-12-02
Applicant: Kennametal Inc.
Abstract: A rotary cutting tool includes a cutting head having a plurality of insert-receiving pockets for radially mounting a first type of cutting insert in a first cutting region and for tangentially mounting a second type of cutting insert in a second cutting region. The first cutting region has a first length, L1, and the second cutting region has a second length, L2, that is greater in magnitude than the first length, L1. The two types of cutting inserts provides a hybrid cutting insert design in which the first type of cutting inserts provide an increased chip gash volume for effective chip evacuation, and the second type of cutting inserts provide an increased core diameter to minimize deflection of the rotary cutting tool.
-
公开(公告)号：US11148213B2
公开(公告)日：2021-10-19
申请号：US16239094
申请日：2019-01-03
Applicant: Kennametal Inc.
Abstract: A hardware fastener with a movable threaded element suspended within a cavity formed in a body. The movable threaded element has an internal surface with threads for cooperating with a threaded fastener. The movable threaded element is suspended in the cavity by the one or more spring-like members such that an area, A, of reduced stiffness is created in the cavity proximate the movable threaded element, thereby allowing the movable threaded element to move a predetermined distance within the cavity when torque is applied to the threaded fastener. The one or more spring-like members store elastic potential energy to prevent the loss of pretension of the threaded fastener that can be caused by heat or vibration. The invention also eliminates the need for a torque wrench when tightening the threaded fastener to a specified torque value.
-
-
-
-
-
-
-
-
-
Search Results
89
records
(took 0.015 seconds)
