TWM589090U - Ultrasonic cutting tool-holder structure - Google Patents

Abstract

This creation is about a structure of ultrasonic tool holder, including a tool holder, a processing tool set, a primary current sensing module, a secondary current sensing module and a beam ring. The tool holder extends along an axial length, and a contact portion is provided on the tool holder along a radial extension; the processing tool group is provided on the tool holder, and the processing tool group has a tool and a piezoelectric actuator; the primary The side current sensing module is adjacent to the tool handle, the secondary side current sensing module is sleeved on the tool handle and pressed against the resisting portion, and the secondary side current sensing module corresponds to the primary side current sensing module with a gap Then, the beam ring is sleeved on the handle and pressed against the secondary side current sensing module, thereby fixing the secondary side current sensing module between the resisting portion and the beam ring, thereby stably Fix the secondary side current sensing module.

Description

Ultrasonic blade structure

This creation is about a cutting tool, especially a structure of an ultrasonic blade that supplements the tool with ultrasonic vibration.

In order to improve the machining efficiency, the cutting process will supplement the tool with ultrasonic vibration. Usually a piezoelectric actuator is installed on the tool spindle, and the piezoelectric actuator is energized to generate micro vibration. However, if the power supply and the piezoelectric actuator are connected by wire, the tool may rotate during machining, and the wire may be entangled during the rotation process, causing danger.

Refer to Republic of China Patent No. M560962 "Side-Coupled Wireless Powered Ultrasonic Tool Holder Device and Ultrasonic Tool Holder Device". The case uses a wireless induction current method to surround a receiving coil unit with a tool holder body and electrically connect the tool holder An ultrasonic unit in the body has a side-coupling energy-feeding coil unit disposed adjacent to and not in contact with the receiving coil unit, for inducing electric energy to the receiving-coil unit through the side-coupling energy-feeding coil unit, and passing the electricity The connection method is transmitted to the ultrasonic unit, thereby solving the possible winding problem of the wire. However, it can be found from Figure 1 of the case that the receiving coil unit of the case surrounds the body of the knife handle and fixes its limit position by an infinite fixing mechanism. For example, there is no bearing mechanism under the receiving coil unit, when the tool body rotates at high speed , May cause the receiving coil unit to come loose.

Please refer to Republic of China Patent No. I617388 "A Cutting Device". The case also uses a wireless induction current method, which combines the first induction module with the tool holder and contains the first magnetic core and the first coil group. , The first coil assembly is modularly shaped, and is shaped into an annular body with a first hollow portion in the middle through the adhesive to be detachably coupled to the first magnetic core; the piezoelectric actuator is electrically It is connected to the first induction module, which is controlled to drive the cutter to vibrate. The second induction module includes a second magnetic core and a second coil group. The second coil group is modularly formed and is shaped as An arc-shaped annular body with a second hollow portion in the middle is detachably coupled to the second magnetic core. By energizing the second induction module and causing the first induction module to generate an induction current correspondingly, the piezoelectric actuator is energized. Refer to Figure 6 of the case. Similarly, the case does not have a complete limit fixing mechanism for the first sensing module. For example, there is no fixing mechanism above the first sensing module. When the knife body rotates at a high speed, it may still be possible This causes the first sensing module to loosen.

So, this work proposes a structure of ultrasonic blade, including:

A tool holder, which extends along an axial length, and an abutment portion is provided on the tool holder along a radial extension; a processing tool group is provided on the tool holder, and the processing tool group has a tool and a piezoelectric actuator; one The secondary-side current sensing module is adjacent to the handle. The primary-side current sensing module includes a primary-side magnetic core and a primary-side coil wound on the primary-side magnetic core; a secondary-side current sensing module, It includes a secondary side magnetic core and a secondary side coil wound on the secondary side magnetic core, the secondary side current sensing module is sleeved on the knife handle and pressed against the resisting portion, and the secondary side The current sensing module corresponds to the primary current sensing module and has a gap; a bunch of rings is sleeved on the handle and pressed against the secondary side current sensing module to fix the secondary side current sensing module at Between the abutment and the ring.

Further, the primary side magnetic core includes a vertical portion, and two horizontal portions extending horizontally at opposite ends of the vertical portion, a concave portion is formed between the two horizontal portions and the vertical portion, and the primary side coil It is not detachably wound around the concave portion, and the concave portion faces the secondary side current sensing module.

Further, the primary side magnetic core includes a first component and a second component that divide the vertical portion into two, and the first component and the second component are bonded and fixed.

Further, the blade handle is substantially cylindrical, the primary current sensing module corresponds to an arc configuration with an arc of 120 degrees, and the distance between the secondary current sensing module and the primary current sensing module is 5 mm.

Further, the fixed ring block has a ring groove, and the primary current sensing module is disposed in the ring groove.

Further, the secondary side magnetic core includes a vertical portion, and two horizontal portions extending horizontally at opposite ends of the vertical portion, and a concave portion is formed between the two horizontal portions and the vertical portion, the secondary The side coil is not detachably wound around the concave portion, and the concave portion faces the primary side current sensing module.

Further, the secondary side magnetic core includes a first component and a second component that divide the vertical portion into two, and the first component and the second component are bonded and fixed.

Further, the beam ring includes a first beam ring and a second beam ring in a semicircular shape.

Further, the blade handle has a through hole, and the beam ring has a groove communicating with the through hole.

Further, the tool holder conforms to the BT-30 machining spindle specification.

According to the above technical features, the following effects can be achieved:

1. Fix the secondary-side current sensing module between the contact portion of the tool holder and the beam ring, thereby firmly fixing the secondary-side current sensing module to avoid causing the two The secondary current sensing module is loose.

2. The primary-side current sensing module corresponds to the cylindrical handle and has an arc configuration with an arc of 80-180 degrees, and the distance between the secondary-side current sensing module and the primary-side current sensing module is 0.01 ~10mm, it can produce better induced current efficiency without interfering with the rotation of the handle.

3. The concave portion of the primary side magnetic core faces the secondary side current sensing module, and a better induction current efficiency can be generated through the simulation result.

4. The primary side magnetic core and the secondary side magnetic core each include a first component and a second component that divide the vertical portion into two, which is convenient for manufacturing and production.

5. The beam ring includes a semi-circular first beam ring and a second beam ring, which is convenient for production and assembly.

6. The cutter handle conforms to the BT-30 machining spindle specification, so the traditional machine tool can be improved into an ultrasonic processing machine and can be used without any modification.

Combining the above technical features, the main function of the ultrasonic blade structure of this creation will be clearly presented in the following embodiments.

Referring to the first figure, the structure of the ultrasonic tool holder in this embodiment includes: a main shaft (10), a tool holder (1), a processing tool set (2), a primary current sensing module (3), A secondary side current sensing module (4), a beam ring (5) and a fixed ring block (6) are assembled with each other.

Referring to the second and third figures, the tool holder (1) extends along an axial length and is provided on the main shaft (10), and the tool holder (1) is provided with an abutment portion (11) extending in a radial direction There is a through hole (12) on the tool holder (1), wherein the tool holder (1) conforms to the BT-30 machining spindle specification, so the traditional machine tool can be transformed into the ultrasonic tool holder structure of this embodiment. The processing tool group (2) is arranged on the tool holder (1), and the processing tool group (2) has a fixture (21), a tool (22) and a piezoelectric actuator (23), the fixture (21) It is used to clamp the cutter (22), and the piezoelectric actuator (23) is sleeved on the clamp (21). The primary current sensing module (3) is adjacent to the handle (1). The primary current sensing module (3) includes a primary magnetic core (31) and a primary coil (32) wound around the On the primary side magnetic core (31), in this embodiment, the primary side magnetic core (31) includes a vertical portion (311), and two horizontal portions (312) extending horizontally at opposite ends of the vertical portion (311) ), a concave portion (313) is formed between the two horizontal portions (312) and the vertical portion (311), and the primary-side coil (32) is detachably wound around the concave portion (313), the concave portion (313) Facing the secondary side current sensing module (4), and preferably, in order to facilitate manufacturing and assembly, the primary side magnetic core (31) includes dividing the vertical portion (311) into two A first component (31A) and a second component (31B) are combined with the first component (31A) and the second component (31B) by adhesive bonding. The secondary-side current induction module (4) includes a secondary-side magnetic core (41) and a secondary-side coil (42) wound around the secondary-side magnetic core (41), the secondary-side current induction The module (4) is sleeved on the blade handle (1) and pressed against the pressing portion (11), and the secondary side current sensing module (4) corresponds to the primary side current sensing module (3) with a gap In this embodiment, the secondary core (41) includes a vertical portion (411), and two horizontal portions (412) extending horizontally at opposite ends of the vertical portion (411), the two A concave portion (413) is formed between the horizontal portion (412) and the vertical portion (411), and the secondary-side coil (42) is wound around the concave portion (413) non-removably, and the concave portion (413) Facing the primary-side current sensing module (3), for the convenience of manufacturing and assembly, the secondary-side magnetic core (41) includes a first component (41A) that bisects the vertical portion (411) ) And a second component (41B), and the first component (41A) and the second component (41B) are combined by adhesive bonding. The beam ring (5) is sleeved on the blade handle (1) and pressed against the secondary side current sensing module (4), thereby fixing the secondary side current sensing module (4) group to the resisting portion (11) ) And the beam ring (5), wherein the beam ring (5) includes a semi-circular first beam ring (51) and a second beam ring (52) to facilitate production and assembly in the On the handle (1), there is a groove (53) in the bundle ring (5) communicating with the through hole (12) of the handle (1), so the wire can be made from the groove (53) of the bundle ring (5) and the handle (1) The through hole (12) connects the secondary side coil (42) and the piezoelectric actuator (23). The fixed ring block (6) has a ring groove (61) for the primary side current sensing module (3) to be disposed in the ring groove (61).

Further, in this embodiment, the knife handle (1) is generally cylindrical, and the primary current sensing module (3) corresponds to an arc configuration with an arc of 80-180 degrees. In this embodiment, the arc is 120 degrees, and the The distance between the secondary-side current sensing module (4) and the primary-side current sensing module (3) may be 0.01-10 mm, in this embodiment, 5 mm. The method of generating the induced current in this embodiment is conventional, and will not be repeated here.

Referring to the fourth to fourth C diagrams, the corresponding forms of the primary side current sensing module (3) and the secondary side current sensing module (4) of this embodiment and different corresponding forms of primary side current sensing The module (3C) (3D) and the secondary side current sensing module (4C) (4D) perform the induction current efficiency simulation. In the fourth diagram A, a concave portion (313) is formed on the primary side magnetic core (31) of the primary side current sensing module (3), and the concave portion (313) faces the secondary side current sensing module ( 4); the fourth B picture is that the primary side magnetic core (31C) of the primary current sensing module (3C) does not form a concave portion; the fourth C picture is a primary current sensing module (3D) The side magnetic core (31D) forms a concave portion (313D), and the concave portion (313D) does not face the secondary side current sensing module (4D). According to the simulation results, it is found that the form of the fourth graph A has an induced current efficiency of 29.6%, the form of the fourth graph B has an induced current efficiency of 10.3%, and the form of the fourth graph C has an induced current efficiency of 9.4%. Therefore, the form of this embodiment will have better induced current efficiency.

Based on the description of the above embodiments, the operation, use and effects of this creation can be fully understood, but the above-mentioned embodiments are only the preferred embodiments of the creation, and should not be used to limit the implementation of this creation. The scope, that is, simple equivalent changes and modifications made in accordance with the scope of the patent application for the creation and the content of the creation description, are all covered by the scope of the creation.

(10)‧‧‧spindle (1)‧‧‧knife handle (11)‧‧‧ arrived (12)‧‧‧Through hole (2)‧‧‧Machining tool set (21)‧‧‧Jig (22)‧‧‧Cutter (23)‧‧‧Piezo actuator (3)‧‧‧primary side current sensing module (31)‧‧‧primary side magnetic core (31A)‧‧‧The first component (31B)‧‧‧Second component (311)‧‧‧Vertical (312)‧‧‧Level (313)‧‧‧recessed part (32)‧‧‧primary side coil (4)‧‧‧Secondary side current sensing module (41)‧‧‧Secondary side magnetic core (41A)‧‧‧The first component (41B)‧‧‧Second component (411)‧‧‧Vertical (412)‧‧‧Level (413)‧‧‧recessed part (42)‧‧‧Secondary side coil (5)‧‧‧Bundle (51)‧‧‧First Ring (52)‧‧‧Second beam ring (53)‧‧‧groove (6) ‧‧‧ fixed ring block (61)‧‧‧Ring groove (3C)‧‧‧primary side current sensing module (31C)‧‧‧primary side magnetic core (3D)‧‧‧primary side current sensing module (31D)‧‧‧primary side core (313D)‧‧‧recessed part (4C)‧‧‧Secondary side current sensing module (4D)‧‧‧Secondary side current sensing module

[The first picture] is a three-dimensional appearance drawing of this creation.

[Second picture] It is a three-dimensional exploded view of this creation.

[Third Picture] is a sectional view of this creation.

[Fourth Figure A] is a simulation diagram of the induced current efficiency of the primary-side magnetic core created for this creation, and the concave portion facing the secondary-side current sensing module.

[Fourth picture B] This is a simulation diagram of the induced current efficiency of the primary side magnetic core where no concave portion is formed.

[Fourth C] is a simulation diagram of the induced current efficiency of the primary side magnetic core formed for this creation, and the concave part does not face the secondary side current sensing module.

(1)‧‧‧knife handle

(11)‧‧‧ arrived

(12)‧‧‧Through hole

(2)‧‧‧Machining tool set

(21)‧‧‧Jig

(22)‧‧‧Cutter

(23)‧‧‧Piezo actuator

(3)‧‧‧primary side current sensing module

(31)‧‧‧primary side magnetic core

(31A)‧‧‧The first component

(31B)‧‧‧Second component

(311)‧‧‧Vertical

(312)‧‧‧Level

(313)‧‧‧recessed part

(32)‧‧‧primary side coil

(4)‧‧‧Secondary side current sensing module

(41)‧‧‧Secondary side magnetic core

(41A)‧‧‧The first component

(41B)‧‧‧Second component

(411)‧‧‧Vertical

(412)‧‧‧Level

(413)‧‧‧recessed part

(42)‧‧‧Secondary side coil

(5)‧‧‧Bundle

(51)‧‧‧First Ring

(52)‧‧‧Second beam ring

(53)‧‧‧groove

(6) ‧‧‧ fixed ring block

(61)‧‧‧Ring groove

Claims (10)

An ultrasonic blade handle structure includes: A knife handle extends along an axial length, and a contact portion is provided on the knife handle extending along a radial direction; A processing tool group, which is arranged on the tool holder, and the processing tool group has a tool and a piezoelectric actuator; A primary current sensing module is adjacent to the handle. The primary current sensing module includes a primary magnetic core and a primary coil wound on the primary magnetic core; A secondary side current sensing module includes a secondary side magnetic core and a secondary side coil wound on the secondary side magnetic core, the secondary side current sensing module is sleeved on the knife handle and resists The offset portion, and the secondary-side current sensing module corresponds to the primary-side current sensing module with a gap; A beam ring is sleeved on the handle and pressed against the secondary-side current sensing module, thereby fixing the secondary-side current sensing module between the resisting portion and the beam ring. The ultrasonic blade handle structure as described in item 1 of the patent application scope, wherein the primary side magnetic core includes a vertical portion, and two horizontal portions extending horizontally at opposite ends of the vertical portion, the two horizontal portions and A concave portion is formed between the vertical portions, and the primary side coil is detachably wound around the concave portion, and the concave portion faces the secondary side current sensing module. The ultrasonic blade handle structure as described in item 2 of the patent application scope, wherein the primary side magnetic core includes a first component and a second component that divide the vertical portion into two, and the first component and The second component is adhesively fixed. The ultrasonic tool holder structure as described in item 1 of the patent application scope, wherein the tool holder is generally cylindrical, the primary side current sensing module corresponds to an arc configuration with an arc of 80 to 180 degrees, and the secondary side current The distance between the sensing module and the primary current sensing module is 0.01-10mm. According to the structure of the ultrasonic blade handle described in item 1 of the patent application scope, further, there is a fixed ring block, the fixed ring block has a ring groove, and the primary current sensing module is disposed in the ring groove. The ultrasonic blade structure as described in item 1 of the patent application scope, wherein the secondary side magnetic core includes a vertical portion, and two horizontal portions extending horizontally at opposite ends of the vertical portion, the two horizontal portions A concave portion is formed between the vertical portion and the secondary-side coil is detachably wound around the concave portion, and the concave portion faces the primary-side current sensing module. The ultrasonic tool holder structure as described in item 6 of the patent application scope, wherein the secondary side magnetic core includes a first component and a second component that divide the vertical portion into two, and the first component And the second component is adhesively fixed. The ultrasonic tool holder structure as described in item 1 of the patent application scope, wherein the beam ring includes a first beam ring and a second beam ring in a semicircular shape. The structure of the ultrasonic tool holder as described in item 1 of the patent application scope, wherein the tool holder has a through hole, and the beam ring has a groove communicating with the through hole. The structure of the ultrasonic tool holder as described in item 1 of the patent application scope, wherein the tool holder conforms to the BT-30 machining spindle specification.

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