# US 2017/0282290 A1 · Ultrasonic Welding Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0282290 A1 - Document ID: US20170282290A1 - Status: Published application - Kind: A1 - Application number: 15/504,412 - Filed: 2015-08-20 - Published: 2017-10-05 - Earliest claimed: 2014-08-25 - Assignees: Nissan Motor Co., Ltd. - Applicants: Nissan Motor Co., Ltd. - Inventors: Masahiro Nakamoto; Jiromaru Tsujino; Eiichi Sugimoto - Web page: https://patentgrep.com/patent/US20170282290A1 ## CPC - B23K 20/106: {Features related to sonotrodes} - B06B 1/0644: {using a single piezoelectric element (B06B1/0688 takes precedence)} - B06B 3/00: Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency - H02N 2/00: Electric machines in general using piezoelectric effect, electrostriction or magnetostriction (generating mechanical vibrations in general B06B; piezoelectric, electrostrictive or magnetostrictive devices in general H10N30/00) - B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM - B06B: METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. B07B1/40, B23Q17/12, B24B31/06; measurement of mechanical vibrations G01H; in direction finding, locating, distance or velocity measuring G01S; {generating seismic energy G01V1/02}; control of mechanical vibrations in general G05D; sound-producing devices, e.g. bells, sirens, whistles G10K, {e.g. methods or devices for transmitting, conducting, or directing sound in general G10K11/00}; generation of electrical oscillations H03B; electromechanical resonators in general H03H; electromechanical transducers {for communication techniques, e.g. microphones, speakers} H04R) - H02N: ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR ## Abstract An ultrasonic welding device for ultrasonic welding of members to be welded, comprising: an ultrasonic horn configured to generate ultrasonic vibration; a horn chip configured to transmit the ultrasonic vibration to the members to be welded; and a connecting member provided between the ultrasonic horn and the horn chip for connecting them. The ultrasonic horn has a first screw part at the tip. The horn chip has a second screw part at the base end. The connecting member has a third screw part at one side to be screwed with the first screw part and a fourth screw part at the other side to be screwed with the second screw part. The ultrasonic horn and the horn chip are connected by the connecting member so that the attachment surface of the ultrasonic horn and the attachment surface of the horn chip are pressed to each other. ## Claims ### Claim 1 An ultrasonic welding device for ultrasonic welding of members to be welded comprising: a vibrator for generating ultrasonic vibration; an ultrasonic horn connected to the vibrator, having an attachment surface in an opposite side of the vibrator, and transmitting the ultrasonic vibration generated by the vibrator; a horn chip having an attachment surface at a base side and tip surface, connected to the attachment surface of the ultrasonic horn; and a connecting member being provided between the ultrasonic horn and the horn chip for connecting the ultrasonic horn and the horn chip, wherein the attachment surface of the ultrasonic horn has a first screw part, an attachment surface of the horn chip at a base side has a second screw part, the connecting member has a third screw part, which is screwed with the first screw portion, in one side and has a fourth screw part, which is screwed with the second screw portion, in an other side, the ultrasonic horn and the horn chip are attached by the connecting member so that the attachment surface of the ultrasonic horn and the attachment surface of the horn chip are pressed to each other, and the members are welded by contacting the tip surface with the member and transmitting the ultrasonic vibration to the members. ### Claim 2 (depends on 1) The ultrasonic welding device according to claim 1, wherein both the first screw part and the second screw part are female screws, and both the third screw part and the fourth screw part are male screws. ### Claim 3 (depends on 1) The ultrasonic welding device according to claim 1, wherein both the first screw part and the second screw part are male screws, and both the third screw part and the fourth screw part are female screws. ### Claim 4 (depends on 1) The ultrasonic welding device according to claim 1, wherein a length of the first screw part is longer than a length of the third screw part, and a length of the second screw part is longer than a length of the fourth screw part. ### Claim 5 (depends on 1) The ultrasonic welding device according to claim 1, wherein the connecting member is a cylindrical member consisting only of the third screw part and the fourth screw part, and the ultrasonic horn and the horn chip are attached by the connecting member so that the attachment surface of the ultrasonic horn and the attachment surface of the horn chip are directly contacted and pressed to each other. ### Claim 6 (depends on 1) The ultrasonic welding device according to claim 1, wherein the connecting member includes a flat plate part having a pair of surfaces between the first screw part and the second screw part, and the ultrasonic horn and the horn chip are attached by the connecting member so that one surface of the flat plate part and the attachment surface of the ultrasonic horn are contacted, another surface of the flat plate part and the attachment surface of the horn chip are contacted, and the attachment surface of the ultrasonic horn and the attachment surface of the horn chip are indirectly pressed to each other via the flat plate part. ### Claim 7 (depends on 6) The ultrasonic welding device according to claim 6, wherein the first screw part has a first circular inclined surface at an edge in the attachment surface of the ultrasonic horn, the second screw part has a second circular inclined surface at an edge in the attachment surface of the horn chip, the connecting member has a first curved surface at a border between the flat plate part and the third screw part and a second curved surface at a border between the flat plate part and the fourth screw part. ### Claim 8 (depends on 1) The ultrasonic welding device according to claim 1, wherein the tip surface of the horn chip is circular. ### Claim 9 (depends on 1) The ultrasonic welding device according to claim 1, wherein the ultrasonic horn has, at a tip, a first depression having a depth equal to a length of the third screw part in a direction of an axis and a cross-section area equal to a cross-section area of a part in the connecting member in which the third screw part is formed, the horn chip has, at a base end, a second depression having a depth equal to a length of the fourth screw part in a direction of an axis and a cross-section area equal to a cross-section area of a part in the connecting member in which the fourth screw part is formed. ### Claim 10 (depends on 1) The ultrasonic welding device according to claim 1, further comprising a pressure device for supporting the ultrasonic horn and moving the ultrasonic horn in a rectangular direction of the attachment surface of the ultrasonic horn, wherein the horn chip presses the members due to a movement of the ultrasonic horn.