WO2015099259A1 - Appareil de chauffage de mandrin de frettage - Google Patents

Appareil de chauffage de mandrin de frettage Download PDF

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Publication number
WO2015099259A1
WO2015099259A1 PCT/KR2014/007333 KR2014007333W WO2015099259A1 WO 2015099259 A1 WO2015099259 A1 WO 2015099259A1 KR 2014007333 W KR2014007333 W KR 2014007333W WO 2015099259 A1 WO2015099259 A1 WO 2015099259A1
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WO
WIPO (PCT)
Prior art keywords
shrink fit
fit chuck
unit
heat dissipation
heating
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Application number
PCT/KR2014/007333
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English (en)
Korean (ko)
Inventor
박광오
조병훈
강길수
최재성
Original Assignee
주식회사 다인정공
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Application filed by 주식회사 다인정공 filed Critical 주식회사 다인정공
Publication of WO2015099259A1 publication Critical patent/WO2015099259A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
    • B23P11/027—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold for mounting tools in tool holders

Definitions

  • the present invention relates to an apparatus for heating a shrink fit chuck.
  • the shrink fit chuck may have a mounting portion into which the cutting tool is inserted and fixed.
  • This mounting portion is generally formed in a size whose inner diameter corresponds to the outer diameter of the cutting tool so that it can be engaged with the cutting tool after thermal expansion through a separate heating device or the like.
  • the heating device for heating the shrink fit chuck can usually have a heating coil with a hollow portion formed therein.
  • the mounting portion of the shrink fit chuck is inserted into the hollow portion, and the heating coil may be configured to heat and expand the mounting portion inserted into the hollow portion by an induction heating method or the like.
  • the overheating phenomenon of the heating device may be detected by an overheat sensor built in the heating device.
  • the overheat sensor cuts off the power supply for protection of the heating device when an overheating phenomenon occurs, whereby the heating device may be in an inoperable state for a predetermined time, making it difficult to perform continuous shrinkage work by the user.
  • One object of the present invention is to provide a shrink fit chuck heating apparatus, which quickly discharges heat generated in a heating coil during shrink fit chuck heating to enable continuous shrink fit operation.
  • Another object of the present invention is to provide a shrink fit chuck heating apparatus, which enables a continuous shrink fit operation by lowering the temperature of a power supply for supplying power to a heating coil.
  • Shrink fit chuck heating device for achieving the above object, the case having a receiving portion; A heating unit having a hollow portion into which a shrink fit chuck is inserted, and a heating coil embedded in the receiving portion and heating the shrink shrink chuck inserted into the hollow portion to thermally expand; And a cooling unit including a closed loop heat dissipation space formed on an inner circumferential surface of the hollow part and a fluid supply unit supplying cooling fluid to the heat dissipation space.
  • an AC power supply unit for supplying an AC current having a frequency of 50 kHz to 2 MHz may be further provided to the heating coil.
  • the main body is fixed to the shrink fit chuck; And a guide member slidably fixed to guide the case toward the main body.
  • the cooling unit may further include a hollow member spaced apart from the inner circumferential surface of the hollow part to form the heat dissipation space between the inner circumferential surface of the hollow part.
  • the cooling fluid includes compressed air, the fluid supply unit, an air pump for supplying the compressed air; And it may include a supply pipe for interconnecting the air pump and the heat dissipation space.
  • the cooling unit the inlet hole is formed through the hollow member so as to communicate with one side of the heat dissipation space, and connected to the supply pipe; And a discharge port formed at the other side of the heat dissipation space and discharging the compressed air introduced into the heat dissipation space through the inflow hole to the outside.
  • the inlet hole may be formed along the spiral direction based on the central axis of the hollow member.
  • the inlet is provided with a plurality, the cooling unit, the base in close contact with the hollow member; And an air groove formed on a surface of the base in close contact with the hollow member, in communication with the plurality of inflow holes, and connected to the supply pipe.
  • the cooling unit the inlet is formed through the communication with the receiving portion, the auxiliary inlet hole connected to the supply pipe; And it is formed through the case, it may include an auxiliary outlet for discharging the compressed air introduced into the receiving portion through the auxiliary inlet to the outside.
  • the cooling fluid may include a cooling liquid
  • the fluid supply part may include a cooling liquid pump for supplying the cooling liquid
  • the cooling unit may further include a circulation channel installed in the heat dissipation space and connected to the cooling liquid pump. It may include.
  • the cooling unit may further include a heat insulator disposed between the inlet pipe and the outlet pipe.
  • the heat insulating material, the first heat insulating portion disposed between the inner peripheral surface of the hollow portion and the outlet pipe;
  • a second heat insulating part extending from the first heat insulating part and disposed between the outlet pipe and the neighboring inlet pipe;
  • a third heat insulating part extending from the second heat insulating part and disposed on an opposite side of the inner circumferential surface of the hollow part based on the inflow pipe.
  • the case and the hollow member may be formed of a material of a non-conductor.
  • the coil temperature sensor is installed in the receiving portion for sensing the temperature of the heating coil; And based on the temperature information received from the coil temperature sensor, when the temperature of the heating coil is higher than the set temperature may be further provided with a control unit for controlling the AC power supply to block the supply of the AC current.
  • the main body having an outer housing;
  • a circuit board including a frequency converter configured to receive a current from a commercial power source and convert the frequency of the current to provide the AC power supply unit, and a substrate unit on which the frequency converter is installed and embedded in the outer housing;
  • a substrate temperature sensor for sensing a temperature of the circuit board;
  • a controller for controlling the AC power supply to block the supply of the AC current when the temperature of the circuit board is higher than a set temperature based on the temperature information received from the substrate temperature sensor.
  • the water removal unit for removing the moisture from the outside air, and supplying the external air from which the moisture is removed into the outer housing may be further provided.
  • the heat generated in the heating coil during the shrink fit chuck heating using a cooling fluid can be quickly discharged.
  • the heating unit or the case from being damaged due to overheating, and to prevent the heating coil from being inoperable due to overheating, so that the operator can keep the shrink fit. can do.
  • the temperature of the power supply unit such as an AC power supply unit and a frequency converter for supplying power to the heating coil can also be lowered, allowing the operator to work on shrinking for a longer time.
  • the shrink fit chuck heating apparatus since the case and the hollow member may be made of a non-conductive material, it is possible to block heat transferred from the heated shrink fit chuck to the heating coil during the shrink fit operation. Thereby, overheating and damage of a heating unit can be prevented more efficiently.
  • FIG. 1 is a perspective view of a shrink fit chuck heating apparatus 100 according to an embodiment of the present invention.
  • FIG. 2 is a view for explaining the operation of the shrink fit chuck heating device 100 of FIG.
  • FIG. 3 is a cross-sectional view of the shrink fit chuck heating apparatus 100 of FIG. 1.
  • FIG. 4 is a cross-sectional view and a plan view of the hollow member 135 of the shrink fit chuck heating apparatus 100 of FIG.
  • FIG. 5 is a cross-sectional view and a plan view of the base 143 of the shrink fit chuck heating apparatus 100 of FIG. 1.
  • FIG. 6 is an operation diagram of the shrink fit chuck heating device 100 of FIG.
  • FIG. 7 is a cross-sectional view of a shrink fit chuck heating apparatus 100 ′ according to another embodiment of the present invention.
  • FIG. 8 is a cross-sectional view of a shrink fit chuck heating apparatus 100 ′′ according to another embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of a shrink fit chuck heating apparatus 100 ′ ′′ according to another embodiment of the present invention.
  • shrink fit chuck is used to mean a holder or an arbor that fixes a cutting tool through a shrink fit operation.
  • FIG. 1 is a perspective view of a shrink fit chuck heating device 100 according to an embodiment of the present invention
  • Figure 2 is a view for explaining the operation of the shrink fit chuck heating device 100 of FIG.
  • the shrink fit chuck heating apparatus 100 includes a case 110, a heating unit 120, a cooling unit 130, a main body 160, a guide member 170, a circuit board 180, And a water removal unit 195.
  • the case 110 may be formed in a cylindrical shape.
  • the case 110 may include a bracket 111, and the bracket 111 may be fixed to the guide member 170 described later.
  • the heating unit 120 is a structure for heating and shrinking the shrink fit chuck C.
  • the heating unit 120 may include a hollow portion 121.
  • the cooling unit 130 is a structure for cooling the heating unit 120.
  • the cooling unit 130 may include a fluid supply unit 131 for supplying a cooling fluid to the heating unit 120.
  • the main body 160 is a structure for mounting and fixing the shrink fit chuck C.
  • An AC power supply unit 161 for supplying an AC current to the heating unit 120 may be built in the main body 160.
  • the main body 160 may include an outer housing 162, an operation setting unit 165, an outside air inlet 163, and a hot air outlet 164.
  • the outer housing 162 may be equipped with a shrink fit chuck (C).
  • the operation setting unit 165 may be installed on the front surface of the outer housing 162 so that an operator may set a progress time or on-off of a shrink fit operation.
  • the outside air inlet 163 is formed on one side of the outer housing 162 to be configured to suck outside air
  • the hot air outlet 164 is formed on the other side of the outer housing 162 to open the heat inside the outer housing 162. It can be configured to discharge the.
  • the main body 160 has a fin heat sink installed in close contact with the circuit board 180 to be described later for cooling the internal components of the outer housing 162 and cooling for discharging heat of the heat sink to the outside.
  • a fan may be further provided.
  • the guide member 170 is a configuration for guiding the case 110.
  • the bracket 111 may be slidably fixed to the guide member 170, whereby the hollow part 121 of the heating unit 120 moves toward the shrink fit chuck C fixed to the main body 160. Can be.
  • the circuit board 180 is a configuration for controlling power supply and operation.
  • the circuit board 180 may include a frequency converter 181, a substrate unit 182, a substrate temperature sensor 183, and a controller 185.
  • the frequency converter 181 converts the frequency of a current and provides it to the AC power supply 161.
  • the frequency converter 181 may include an insulated gate bipolar transistor (IGBT).
  • the IGBT is configured to convert a frequency supplied from a commercial power supply through a switching operation or the like.
  • the substrate unit 182 has a configuration in which the frequency converter 181 is mounted.
  • the substrate 182 is embedded in the outer housing 162.
  • the substrate temperature sensor 183 senses the temperature of the frequency converter 181 or the substrate 182.
  • the controller 185 controls the operation of the heating unit 120 based on the input of the operation setting unit 165 or the temperature information received from the substrate temperature sensor 183.
  • the moisture removing unit 195 is configured to remove moisture from the external air and supply the external air from which the moisture is removed into the external housing 162.
  • the water removal unit 195 may be a commercially available dehumidifier such as a filter method, a condensation point method (for example, a zandar TM product) according to a pressure drop.
  • the moisture removal unit 195 may optionally be connected to a fluid supply 131, such as an air compressor, to be configured to supply dry compressed air into the outer housing 162.
  • the frequency converter 181 frequency-converts the current of the commercial power source and provides it to the AC power supply unit 161.
  • the frequency converter 181 composed of IGBTs exhibits heat generation characteristics such as switching loss, normal loss, turn-on and turn-off loss, and the heat generation is detected by the substrate temperature sensor 183.
  • the controller 185 controls the AC power supply unit 161 to protect the equipment when the temperature of the circuit board 180 is higher than the set temperature based on the temperature information of the substrate temperature sensor 183. The supply will be cut off. As a result, the worker may not be able to continuously perform the shrink fit operation.
  • the water removing unit 195 may supply air into the outer housing 162. Since the moisture removing unit 195 is configured to provide dry air, failure of the circuit board 180 due to moisture may be prevented.
  • the heat dissipation plate may be further provided on the circuit board 180, thereby dissipating heat more efficiently. According to such a configuration, it is possible to prevent deterioration and damage of the equipment due to overheating through the substrate temperature sensor 183, and at the same time, through the configuration of the water removing unit 195 and the fluid supply unit 131, the circuit board 180 and the like. Can be cooled quickly to enable continuous shrink fit operations.
  • FIG. 3 is a cross-sectional view of the shrink fit chuck heating apparatus 100 of FIG. 1.
  • the shrink fit chuck heating apparatus 100 may include a case 110, a heating unit 120, a cooling unit 130, and a coil temperature sensor 190.
  • the case 110 may include a housing 112, a coil stopper 113, a stop ring 114, and a receiving portion 115.
  • the housing 112 may include a central hole 112a.
  • the housing 112 is disposed to face each other up and down with the coil stopper 113, thereby defining the receiving portion 115.
  • the stop ring 114 may be inserted into and fixed to the central hole 112a.
  • Receiving portion 115 may have a cylindrical shape.
  • the heating unit 120 may have a hollow portion 121, a heating coil 123, and a bobbin 125.
  • the hollow part 121 is a space into which the shrink fit chuck C is inserted.
  • the heating coil 123 may be configured to be wound in a spiral form along the central axis X of the hollow part 121.
  • the bobbin 125 is a member to which the heating coil 123 is wound, and the hollow part 121 may be formed in a central region thereof.
  • the bobbin 125 may include a through hole 126.
  • the through hole 126 is formed to penetrate along the thickness direction of the bobbin 125 to communicate the heating coil 123 embedded in the accommodating part 115 with the heat dissipation space 139.
  • the cooling unit 130 may include a hollow member 135, a heat dissipation space 139, an outlet 141, a base 143, an O-ring 145, and a fluid supply unit 131.
  • the hollow member 135 may include a central member 136, a flange 137, an inlet hole 138.
  • the central member 136 may have a substantially cylindrical shape.
  • the central member 136 may be spaced apart from the inner circumferential surface 122 of the bobbin 125 to form a heat dissipation space 139 between the bobbin 125.
  • the flange 137 extends from the central member 136 and may be in close contact with the coil stopper 113.
  • the inlet hole 138 may be formed through the flange 137 to communicate with the heat dissipation space 139.
  • the heat dissipation space 139 is a space in which the cooling fluid is circulated.
  • the heat dissipation space 139 may be formed between the central member 136 and the inner circumferential surface 122 of the bobbin 125.
  • the heat dissipation space 139 may have a substantially cylindrical shape.
  • the outlet 141 is a space where the cooling fluid is discharged.
  • the outlet 141 may be formed between the upper end of the central member 136 and the inner circumferential surface 122 of the hollow part 121.
  • the base 143 may be configured to be in close contact with the flange 137.
  • the base 143 may include an air groove 144 on a surface in close contact with the central member 136.
  • the air groove 144 may be in communication with the inlet hole 138.
  • the o-ring 145 is configured to prevent leakage of the cooling fluid.
  • the O-ring 145 may be installed between the coil stopper 113 and the flange 137, between the flange 137 and the base 143, and between the central member 136 and the base 143, respectively. .
  • the fluid supply unit 131 may include an air pump 132 and a supply pipe 133.
  • the cooling fluid may be compressed air and the air pump 132 may be configured to supply compressed air.
  • the supply pipe 133 may be connected to the air pump 132 (see FIG. 1) and the air groove 144, respectively, to provide compressed air to the heat dissipation space 139.
  • the coil temperature sensor 190 is a component for sensing the temperature of the heating coil 123.
  • the coil temperature sensor 190 may be installed in the accommodation portion.
  • FIG. 4 is a cross-sectional view and a plan view of the hollow member 135 of the shrink fit chuck heating apparatus 100 of FIG.
  • the hollow member 135 may include a central member 136 and a flange 137, a plurality of inlet holes 138 may be formed in the flange 137.
  • the inlet hole 138 may be formed along the spiral direction S based on the central axis X of the central member 136.
  • the angle ⁇ formed by the spiral direction S with the central axis X may be 30 ° to 60 °.
  • the compressed air introduced into one side of the heat dissipation space 139 through the inlet hole 138 may proceed along the inclined direction with the central axis (X). Therefore, the compressed air may be discharged to the outside through the discharge port 141 formed on the other side of the heat dissipation space 139 while circulating in the form of a vortex along the circumferential direction of the central member 136, thereby dissipating the heat dissipation space 139. Can be cooled evenly throughout.
  • FIG. 5 is a cross-sectional view and a plan view of the base 143 of the shrink fit chuck heating apparatus 100 of FIG. 1.
  • the base 143 may have an air groove 144 having a circular shape as a whole.
  • the air groove 144 may be connected to the supply pipe 133 described above.
  • the air groove 144 may be formed at a surface in close contact with the flange 137 in the base 143, and may be formed at a position corresponding to the plurality of inlet holes 138. Accordingly, the compressed air provided to the air groove 144 through the supply pipe 133 may be uniformly supplied to all of the plurality of inlet holes 138.
  • FIG. 6 is an operation diagram of the shrink fit chuck heating device 100 of FIG.
  • the user mounts and fixes the shrink fit chuck C on the main body 160, and then lowers the case 110 along the guide member 170 to adjust the shrink fit chuck C.
  • the mounting portion may be inserted into the hollow portion 121.
  • the AC power supply unit 161 may supply an AC current having a frequency of 50 Hz to 2 MHz to the heating coil 123. Specifically, the AC power supply unit 161 may supply a high frequency current of 7 kHz to 400 kHz. When a high frequency current is supplied to the heating coil 123, a magnetic field having a high frequency shape may be formed in the hollow part 121.
  • the shrink fit chuck (C) inserted into the hollow portion 121 is made of a metal conductor, a high frequency magnetic field may induce an eddy current or the like on the surface of the shrink fit chuck (C), whereby the shrink fit chuck In (C), heat may be generated due to hysteresis loss and eddy current loss. Accordingly, the mounting portion of the shrink fit chuck C may be thermally expanded, and the shrink fit operation may be completed by inserting the cutting tool T into the mounting portion and cooling the shrink fit chuck C again.
  • Such a high frequency induction heating method is high in efficiency, it is possible to thermally expand the shrink fit chuck (C) in a moment, thereby enabling the work processing of the second unit.
  • the heating method is directly heated by the shrink fit chuck (C) itself, which is the heating element, the amount of heat generated in the heating coil 123 itself is relatively smaller than the direct heating method using the resistance coil.
  • the coil temperature sensor 190 detects the temperature of the heating coil 123 and transmits its temperature information to the controller 185.
  • the controller 185 protects the shrink fit chuck heating device 100 by blocking the supply of AC current when the temperature of the heating coil 123 is higher than the set temperature based on the temperature information.
  • the components constituting the case 110 and the cooling unit 130 are made of non-conductive material.
  • the material of the non-conductor may be a material having a thermal conductivity lower than that of a conventional metal such as reinforced plastic.
  • the temperature of the heating coil 123 or the like may be lowered through the configuration of the cooling unit 130.
  • compressed air may be supplied to the air groove 144 through the supply pipe 133.
  • Compressed air introduced into the air groove 144 may circulate the heat dissipation space 139 again in the form of a vortex through the inlet hole 138 as described above with reference to FIG. 4.
  • heat generated from the heating coil 123 may be transmitted to the heat dissipation space 139 through the bobbin 125 or may be directly discharged to the heat dissipation space 139 through the through hole 126 of the bobbin 125. have.
  • the compressed air introduced into the heat dissipation space 139 through the inlet hole 138 may be discharged to the outside through the outlet 141 formed between the central member 136 and the inner circumferential surface 122 while circulating with the heat.
  • heat generated from the heating coil 123 may also be discharged to the discharge port 141 together with the compressed air.
  • the heat transmitted from the high temperature shrink fit chuck C to the heating coil 123 side can be blocked and discharged efficiently, and the continuous shrink fit operation can be made possible.
  • FIG. 7 is a cross-sectional view of a shrink fit chuck heating apparatus 100 ′ according to another embodiment of the present invention.
  • the cooling unit 130 may further include an auxiliary inlet hole (138a), and an auxiliary outlet (141a).
  • the auxiliary inlet hole 138a may be formed to pass through the flange 137 and the coil stopper 113 to communicate with the air groove 144 and the receiving part 115.
  • the auxiliary inlet hole 138a may be formed along the spiral direction S with respect to the central axis X of the central member 136 like the inlet hole 138 described above, and this spiral direction S Can form an angle of 30 ° to 60 ° with the central axis (X).
  • the auxiliary outlet 141a may be formed to penetrate the housing 112 so that the accommodation part 115 communicates with the outside.
  • the compressed air introduced into one side of the receiving portion 115 through the auxiliary inlet hole (138a) is circulated in the form of vortex along the circumferential direction of the heating coil 123, the heat from the heating coil 123 Absorbed directly may be discharged through the auxiliary outlet (141a).
  • the cooling efficiency for the heating coil 123 may be further increased.
  • FIG. 8 is a cross-sectional view of a shrink fit chuck heating apparatus 100 ′′ according to another embodiment of the present invention.
  • the cooling unit 130 may further include an auxiliary supply pipe 133a.
  • the auxiliary supply pipe 133a may be configured to directly communicate with the receiving portion 115 through the auxiliary inlet hole 138 ′ formed through the housing 112. According to this configuration, it is possible to increase the flow rate of the compressed air supplied to the receiving unit 115, as well as to mutually adjust the supply amount of the compressed air supplied to the supply pipe 133 and the auxiliary supply pipe 133a as necessary. have.
  • FIG. 9 is a cross-sectional view of a shrink fit chuck heating apparatus 100 ′ ′′ according to another embodiment of the present invention.
  • the cooling unit 130 may include a fluid supply 131 ′, a circulation channel 149, and a heat insulator 155.
  • the fluid supply unit 131 may include a coolant pump 132 ′, a supply pipe 133, and a discharge pipe 147.
  • the cooling fluid may be a cooling liquid such as cooling water or cooling oil.
  • the coolant pump 132 ′ (see FIG. 1) may be configured to supply coolant.
  • the supply pipe 133 may supply coolant to the circulation channel 149, and the discharge pipe 147 may be configured to discharge hot coolant from the circulation channel 149.
  • the circulation channel 149 may be installed in the heat dissipation space 139.
  • the circulation channel 149 may include an inlet pipe 151 and an outlet pipe 153.
  • the inlet pipe 151 receives the coolant from the coolant pump 132 ′ and may be wound spirally along the central axis X of the hollow part 121.
  • the outlet pipe 153 may be supplied with a high temperature coolant through the inlet pipe 151, and may be alternately arranged in parallel with the inlet pipe 151.
  • the heat insulator 155 may be disposed between the inlet pipe 151 and the outlet pipe 153.
  • the heat insulator 155 may include a first heat insulator 156, a second heat insulator 157, and a third heat insulator 158.
  • the first heat insulating part 156 may be disposed between the inner circumferential surface 122 of the hollow part 121 and the outlet pipe 153.
  • the second heat insulating part 157 extends from the first heat insulating part 156 and may be disposed between the outlet pipe 153 and the neighboring inlet pipe 151.
  • the third heat insulating part 158 may extend from the second heat insulating part 157 and may be disposed on an opposite side of the inner circumferential surface 122 of the hollow part 121 with respect to the inflow pipe 151.
  • the heat insulator 155 may have a form of a corrugated pipe as a whole.
  • the coolant When the user operates the coolant pump 132 ′, the coolant may be supplied to the inlet pipe 151 through the supply pipe 133. Thereafter, the coolant may move upward in the drawing while circulating the inner circumferential surface 122 of the hollow part 121 along the inlet pipe 151.
  • the coolant in the inlet pipe 151 is thermally cut off with the shrink fit chuck (C), as well as the bobbin ( It may be in close contact with the inner circumferential surface 122 of the 125 to absorb heat from the heating coil 123.
  • the coolant When the hot coolant absorbing heat reaches the top of the drawing, the coolant may be circulated downward along the outlet pipe 153.
  • the first heat insulating part 156 is disposed between the outlet pipe 153 and the inner circumferential surface 122 of the hollow part 121, the high temperature coolant in the outlet pipe 153 is transferred to the heating coil 123. The amount of heat that can be minimized can be minimized.
  • the second heat insulating part 157 is disposed between the neighboring outlet pipe 153 and the inlet pipe 151, heat exchange between the inlet pipe 151 and the outlet pipe 153 can be minimized. Cooling efficiency for the heating coil 123 can be further improved.
  • Such shrink fit chuck heating apparatus is not limited to the configuration and manner of operation of the embodiments described above.
  • the above embodiments may be configured such that various modifications may be made by selectively combining all or part of the embodiments.
  • the heating coil may be configured as a resistance coil or the like so as to directly heat the shrink fit chuck.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Induction Heating (AREA)

Abstract

La présente invention concerne un appareil destiné à chauffer un mandrin de frettage. L'appareil comprend : un boîtier ayant une partie réception ; une unité de chauffage comprenant une partie creuse dans laquelle un mandrin de frettage est inséré et une bobine de chauffage pour chauffer le mandrin de frettage, intégrée dans la partie réception et insérée dans la partie creuse, pour dilater thermiquement ce dernier ; et une unité de refroidissement comprenant un espace de dissipation de chaleur du type en boucle fermée formée sur la surface périphérique interne de la partie creuse et une partie d'alimentation en fluide pour fournir un fluide de refroidissement dans l'espace de dissipation de chaleur.
PCT/KR2014/007333 2013-12-26 2014-08-07 Appareil de chauffage de mandrin de frettage WO2015099259A1 (fr)

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KR10-2013-0164509 2013-12-26
KR20130164509 2013-12-26

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WO2015099259A1 true WO2015099259A1 (fr) 2015-07-02

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KR (1) KR101541320B1 (fr)
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP3718680A1 (fr) * 2019-04-04 2020-10-07 E. Zoller GmbH & Co. KG Einstell- und Messgeräte Station de serrage et/ou de desserrage pour outils et procédé doté d'une station de serrage et/ou de desserrage d'échappement pour outils

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
KR20210092574A (ko) 2020-01-16 2021-07-26 주식회사 에스제이테크윈 다이캐스팅 주조용 금형 슬리브 냉각케이스 자동 열박음 장치

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KR20040023064A (ko) * 2002-09-10 2004-03-18 현대자동차주식회사 절삭공구의 고정방법 및 이에 사용되는 장치

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KR20000047997A (ko) * 1998-12-10 2000-07-25 아끼모토 유미 절삭공구 및 그 가열끼워맞춤방법
JP2000343306A (ja) * 1999-06-04 2000-12-12 Makino Milling Mach Co Ltd 工作機械の主軸装置
JP2001287121A (ja) * 2000-04-06 2001-10-16 Hitachi Hometec Ltd 誘導加熱式焼きばめ装置
JP2003071670A (ja) * 2001-09-03 2003-03-12 Showa Seimitsu Koki Kk シュリンク式ツールホルダ用クーリングユニット
KR20040023064A (ko) * 2002-09-10 2004-03-18 현대자동차주식회사 절삭공구의 고정방법 및 이에 사용되는 장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3718680A1 (fr) * 2019-04-04 2020-10-07 E. Zoller GmbH & Co. KG Einstell- und Messgeräte Station de serrage et/ou de desserrage pour outils et procédé doté d'une station de serrage et/ou de desserrage d'échappement pour outils
US11241761B2 (en) 2019-04-04 2022-02-08 E. Zoller GmbH & Co. KG Einstell-Und Messgeräte Shrinking and / or shrinking clamping station for tools and method with a shrinking and / or shrinking clamping station for tools

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KR101541320B1 (ko) 2015-08-03
CN204135708U (zh) 2015-02-04
KR20150076059A (ko) 2015-07-06

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