CN110461490A

CN110461490A - Quench processing unit (plant)

Info

Publication number: CN110461490A
Application number: CN201880019980.6A
Authority: CN
Inventors: 浜崎丰
Original assignee: Japanese Style Stock Co
Current assignee: Japanese Style Stock Co
Priority date: 2017-05-19
Filing date: 2018-03-22
Publication date: 2019-11-15
Also published as: MX2019011022A; WO2018211814A1; JP6458915B1; KR20190126403A; US20200040417A1; JPWO2018211814A1; EP3626360A1

Abstract

The present invention provides a kind of quenching processing unit (plant), comprising: conveying mechanism (110) alongst conveys work piece (200)；Supporting device (120) is configured at than conveying mechanism (110) by the downstream side of the conveying direction of work piece (200), supports work piece (200)；And heating mechanism (130), it is configured at than supporting device (120) by the downstream side of the conveying direction of work piece (200), work piece (200) is heated, supporting device (120) is formed as including backing roll (121), the backing roll (121) is abutted with the outer surface of work piece (200), has the hollow structure (122) passed through for cooling medium in inside.

Description

Quench processing unit (plant)

Technical field

The present invention relates to a kind of quenching processing unit (plant)s of processing for carrying out work piece.

Background technique

In the past, such as in patent document 1 proposed there is a kind of processing unit (plant), in the 1st supporting device for including roller and constituting In, for from feed mechanism convey come work piece i.e. steel pipe, on one side carry out bearing while face direction of feed downstream side it is defeated It send, in the heating mechanism in the downstream side for being configured at supporting device, the steel pipe come to conveying is heated, and then, is being configured at In 2nd supporting device in the downstream side of heating mechanism, make it towards regulation side while supporting for conveying the steel pipe come To movement, bending load thus is assigned to the part of the work piece after being heated by heating mechanism, tube bending is processed into institute Shape desired.

Existing technical literature

Patent document

Patent document 1: No. 5304893 bulletins of Japanese Patent No.

Patent document 2: No. 4825019 bulletins of Japanese Patent No.

Summary of the invention

Subject to be solved by the invention

In the processing unit (plant) documented by above patent document 1, work piece, that is, steel is supported by roller in the 1st supporting device The distance between the bearing position of pipe and heating mechanism are the parts of the additional length from end as converted products, because The shorter this better from the viewpoint of the yield rate of converted products.But when in order to shorten by roller bearing work piece branch When holding the distance between position and heating mechanism and making roller excessively close to heating mechanism, due to heating mechanism heating and roller becomes High temperature.As a result, roller generates damage.In the processing unit (plant) documented by above patent document 1, any examine is not made to this point Consider.Accordingly, there exist following projects: being difficult to eliminate the heat from heating mechanism and matches roller relative to heating mechanism to the damage of roller Set to obtain the closer raising to realize the yield rate of converted products.

The present invention is completed in view of such project, and its purpose is to provide a kind of quenching processing unit (plant)s, can disappear Except the heat from heating mechanism is arranged to relative to heating mechanism to the damage of roller and by roller closer, it is achieved in converted products The raising of yield rate.

Means for solving the problems

Quenching processing unit (plant) of the invention is to carry out the processing of work piece, consist of, comprising: conveying mechanism, it will be by Workpiece is alongst conveyed；Supporting device is configured at than conveying mechanism under the conveying direction of work piece Side is swum, work piece is supported；And heating mechanism, work piece is heated.Supporting device is formed as, including roller, the roller It is abutted with the outer surface of work piece, has the hollow structure passed through for cooling medium in inside.Roller is formed as, comprising: outer ring Portion is abutted with the outer surface of work piece；Axis, configuration is in the inside in outer ring portion, by the bearing of outer ring portion for that can rotate, and inside Portion has hollow structure；And sliding bearing, it configures between outer ring portion and axis.

The effect of invention

According to the present invention, it is disappeared due to the heat from heating mechanism to the damage of roller, it can be by roller relative to heating Mechanism is arranged to yield rate that is closer, therefore can be improved converted products.

Detailed description of the invention

Fig. 1 is the figure of an example for indicating that the summary of the quenching processing unit (plant) of embodiments of the present invention is constituted.

Fig. 2 is the figure for indicating embodiments of the present invention, and indicating an example that the summary of backing roll shown in FIG. 1 is constituted.

Fig. 3 A is the figure for indicating embodiments of the present invention, and indicating the concrete mode example of sliding bearing shown in Fig. 2.

Fig. 3 B is the figure for indicating embodiments of the present invention, and indicating the concrete mode example of sliding bearing shown in Fig. 2.

Fig. 3 C is the figure for indicating embodiments of the present invention, and indicating the concrete mode example of sliding bearing shown in Fig. 2.

Fig. 4 A is the figure for indicating embodiments of the present invention, and indicating the concrete mode example of sliding bearing shown in Fig. 2.

Fig. 4 B is the figure for indicating embodiments of the present invention, and indicating the concrete mode example of sliding bearing shown in Fig. 2.

Fig. 4 C is the figure for indicating embodiments of the present invention, and indicating the concrete mode example of sliding bearing shown in Fig. 2.

Fig. 5 A is to indicate embodiments of the present invention, and indicate an example of the assemble method of sliding bearing shown in Fig. 2 Figure.

Fig. 5 B is the figure for indicating embodiments of the present invention, and sliding bearing shown in Fig. 5 A being amplified.

Fig. 5 C is the sectional view for indicating embodiments of the present invention, and being the assemble method of sliding bearing shown in Fig. 5 A.

Fig. 5 D is the sectional view for indicating embodiments of the present invention, and being the method for dismounting of sliding bearing shown in Fig. 5 C.

Fig. 6 A is to indicate embodiments of the present invention, and indicate the concrete mode example of the shape in outer ring portion shown in Fig. 2 Figure.

Fig. 6 B is to indicate embodiments of the present invention, and indicate the concrete mode example of the shape in outer ring portion shown in Fig. 2 Figure.

Fig. 6 C is to indicate embodiments of the present invention, and indicate the concrete mode example of the shape in outer ring portion shown in Fig. 2 Figure.

Fig. 7 A is to indicate embodiments of the present invention, and indicate the concrete mode example of the configuration in outer ring portion shown in Fig. 2 Figure.

Fig. 7 B is to indicate embodiments of the present invention, and indicate the concrete mode example of the configuration in outer ring portion shown in Fig. 2 Figure.

Fig. 7 C is to indicate embodiments of the present invention, and indicate the concrete mode example of the configuration in outer ring portion shown in Fig. 2 Figure.

Fig. 8 A is to indicate comparative example, and indicate example in the case where be provided with rolling bearing between outer ring portion and axis Figure.

Fig. 8 B is the figure for indicating comparative example, and indicating the stress that the inside in the outer ring portion shown in Fig. 8 A generates.

Fig. 8 C is to indicate embodiments of the present invention, and indicate the case where being provided with sliding bearing between outer ring portion and axis Under example figure.

Fig. 8 D is to indicate embodiments of the present invention, and indicate the stress that the inside in the outer ring portion shown in Fig. 8 C generates Figure.

Fig. 9 A is the backing roll for indicating comparative example, and indicates the case where being provided with rolling bearing between axis and roller retainer An example figure.

Fig. 9 B is the backing roll for indicating embodiments of the present invention, and indicates to be provided with sliding axle between axis and outer ring portion The figure of an example in the case where holding.

Embodiment party of the invention shown in the case where Fig. 9 C is the backing roll for comparative example shown in Fig. 9 A and Fig. 9 B The case where backing roll of formula, indicates the figure of an example of each element.

Figure 10 A be indicate embodiments of the present invention, and indicate outer ring portion as backing roll shown in Fig. 2 material and The figure of an example of temperature change for having used the backing roll in the case where austenite stainless steel to pass through at any time and having generated.

Figure 10 B be indicate embodiments of the present invention, and indicate outer ring portion as backing roll shown in Fig. 2 material and The figure of an example of temperature change for having used the backing roll in the case where nonmagnetic ceramics to pass through at any time and having generated.

The backing roll of embodiments of the present invention shown in the case where Figure 10 C is the backing roll for comparative example, Figure 10 A The case where backing roll of embodiments of the present invention shown in situation and Figure 10 B, indicates the temperature based on test processing conditions The figure of an example of characteristic.

Figure 11 A is to indicate embodiments of the present invention, and indicate an example of relationship between outer ring portion and sliding bearing Figure.

Figure 11 B is the figure for indicating comparative example, and indicating an example of relationship between outer ring portion and sliding bearing.

Specific embodiment

Hereinafter, the embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is the figure of an example for indicating that the summary of the quenching processing unit (plant) 100 of embodiments of the present invention is constituted.Quenching adds Tooling is set 100 and is configured to, and has conveying mechanism 110, supporting device 120, heating mechanism 130, cooling body 140, handle sturcture 150, cooling medium feed mechanism 160, control device 170, input unit 180 and display device 190.

As the quenching processing unit (plant) 100 of present embodiment, to be assumed to dimensionally to carry out work piece 200 bending plus The example of three-dimensional thermal flexure quenching (3Dimensional Hot Bending and Quench:3DQ) processing unit (plant) of work carries out Explanation.But in the present invention, it is not limited to three-dimensional thermal flexure quenching processing unit (plant), three-dimensional thermal flexure can also be quenched Other quenching processing unit (plant)s (for example, two dimension bending quenching processing unit (plant)) other than fiery processing unit (plant) are applied to the present invention.In turn, In the present invention, it is not limited to carry out the bender of the bending machining of work piece 200, as long as to work piece 200 devices for carrying out quenching processing can be applied.

In addition, in the present embodiment, as work piece 200, to the steel pipe for being assumed to that there is the cross section of round Example be illustrated.At this point, being steel pipe as work piece 200, for example, it is preferable to the use of outer diameter be 10 [mm]~200 [mm] Left and right, the steel pipe that wall thickness is the left and right 1 [mm]~8 [mm].In this way, in the present embodiment, as work piece 200, to hypothesis It is illustrated for the example of steel pipe, but is not limited to the steel pipe in the present invention, as long as being made of metal material, Other work pieces can be applied to the present invention.In addition, the shape of the cross section of work piece 200 is not limited to above-mentioned circle Shape, for example, it can be the other shapes such as the polygons such as rectangle, ellipse.In addition, work piece 200 be also possible to it is solid Bar-like member.In addition, the material of work piece 200 is for example other than steel, special steel, it can also be each with aluminium, aluminium alloy, titanium etc. Kind metal.

(conveying mechanism 110)

Conveying mechanism 110 is set to the upstream side of quenching processing unit (plant) 100, is to be processed work piece 200 along this The mechanism that the length direction of part 200 is conveyed.Specifically, conveying mechanism 110 for example holds the upstream side of work piece Portion 201, and work piece 200 is made alongst continuously or intermittently based on the control for carrying out self-control device 170 It moves and is conveyed.Fig. 1 is the conveying direction 111 for indicating the length direction of the work piece 200 based on the conveying mechanism 110 An example figure.In the example depicted in figure 1, the conveying direction 111 of work piece 200 is set as X-direction.In addition, in Fig. 1 In, by the mutually orthogonal both direction of the X-direction of the conveying direction 111 with work piece 200 be set to Y direction and Z-direction and illustrated.At this point, Y direction is for example comparable to the side of the width direction of work piece 200 in Fig. 1 To.In addition, Z-direction is comparable to the direction of vertical direction.

(supporting device 120)

Supporting device 120 is following mechanism: carrying out mobile direction with conveying mechanism 110 and be configured in parallel in compare conveyer Structure 110 is configured and is heated in comparison work piece 200 by the position in the downstream side of the conveying direction 111 of work piece 200 Heating mechanism 130 by conveying direction 111 upstream side position, a part of work piece 200 is guided.The bearing Mechanism 120 is for example configured to, comprising: backing roll 121, at one of the length direction (conveying direction 111) of work piece 200 Point, it is configured in a manner of covering the periphery of work piece 200；And bearing part, in order to make the backing roll 121 and work piece 200 outer surface abuts and supports to it.In addition, it's not limited to that for the configuration of supporting device 120.That is, supporting device 120 also can be only fitted to the downstream side that the heating mechanism 130 that comparison work piece 200 is heated leans on conveying direction 111.

In addition, in the example depicted in figure 1, on the conveying direction 111 of work piece 200, matching in different positions It is equipped with multiple backing rolls 121.In addition, in the present embodiment, the outer diameter of backing roll 121 is, for example, the left side 10 [mm]~100 [mm] It is right.In the following description, as needed, such as in the position of conveying direction 111 that concern backing roll 121 is configured and to branch When runner 121 is illustrated, " the 1st backing roll 121-1 " will be set as closest to the backing roll 121 of heating mechanism 130, connect the 2nd The backing roll 121 of nearly heating mechanism 130 is set as " the 2nd backing roll 121-2 " to be illustrated.In addition, for example, not paying special attention to The position for the conveying direction 111 that backing roll 121 is configured and each backing roll 121-1 and 121-2 is typically said When bright, referred to as " backing roll 121 " and be illustrated.

In addition, as shown in Figure 1, the 1st backing roll 121-1 and the 2nd backing roll 121-2 on the different location of X-direction, It clips work piece 200 and configures in couples.In addition, in the above-described embodiment, show the 1st backing roll 121-1 and The case where 2nd backing roll 121-2 is configured at the different location on the conveying direction 111 of work piece 200.But the present invention is simultaneously It is not limited to this, also includes the mode that 3 or more backing rolls 121 are arranged in the different location in X-axis.

Supporting device 120 is the backing roll 121, Neng Gouzhu configured in a manner of the periphery to cover work piece 200 It will be in a part of the length direction (conveying direction 111) for radially supporting work piece 200 of the work piece 200.It is quenching In fiery processing unit (plant) 100, given by high-temperature portion of the handle sturcture 150 to the work piece 200 after being heated by heating mechanism 130 Add bending load, thus carries out bending machining.The bending load applied to work piece 200 mainly has work piece 200 Radial ingredient.Therefore, in the bending machining, by the bending load applied to work piece 200, to supporting device 120 Backing roll 121 act on bending direction processing counter-force, that is, bending machining counter-force.

In addition, in the supporting device 120 of present embodiment, in being internally provided with for being somebody's turn to do for cooling for backing roll 121 The hollow structure 122 that the cooling medium of backing roll 121 passes through.By making hollow structure of the cooling medium inside backing roll 121 Pass through in 122, thus, it is possible to obtain the cooling effect based on heat dissipation, is able to suppress the heating due to heating mechanism 130 and causes Backing roll 121 temperature rise etc..Therefore, in the present embodiment, compared with not set hollow structure 122 the case where, The damage that backing roll 121 (especially the 1st backing roll 121-1) is generated due to high temperature (for example, about 200 DEG C) is less, can will prop up Runner 121 is closer configured relative to heating mechanism 130.As a result, as shown in Figure 1, can shorten by the 1st backing roll 121-1 Support the distance between bearing position S and the heating mechanism 130 of work piece 200 L1.As bearing position S and heating mechanism 130 The distance between L1 when shortening, the part that can become additional length can be shortened, which is by work piece 200 Carry out the additional length from end of bending machining product obtained from bending machining.As a result, present embodiment can mention The yield rate of high bending machining product.In addition, according to the upstream side of heating mechanism 130 position be arranged backing roll 121 and into The case where row bending machining, is illustrated, but the present invention is not limited to this.As long as that is, supporting quilt by the 1st backing roll 121-1 The bearing position S of workpiece 200 shortens with the distance between heating mechanism 130 and backing roll 121 L1, then can obtain identical Effect.For example, backing roll 121 is set to the position of the upstream side of heating mechanism 130 and carry out straight tube quenching processing feelings Under condition, identical effect can be also obtained.In addition, backing roll 121 to be set to the position in the downstream side of heating mechanism 130 and In the case where carrying out bending machining or straight tube quenching processing, identical effect can be also obtained.

In addition, supporting device 120 is formed as, it is arranged on the different location of the conveying direction 111 of work piece 200 There are multiple backing rolls 121 (in the example depicted in figure 1, at least the 1st backing roll 121-1 and the 2nd backing roll 121-2).It is logical Cross above-mentioned backing roll 121 inside setting for cooling medium by hollow structure 122 can shorten distance L1's as a result, More easily realize the situation.According to this composition, in the bending machining of work piece 200, it can at least pass through the 1st backing roll 121-1 or the 2nd backing roll 121-2 supports work piece 200.Therefore, in the present embodiment, the 1st can at least be passed through Backing roll 121-1 or the 2nd backing roll 121-2 bears above-mentioned bending machining counter-force.

Then, an example constituted to the summary of backing roll 121 is illustrated.

Fig. 2 is to indicate embodiments of the present invention, and indicate an example that the summary of backing roll 121 shown in FIG. 1 is constituted Figure.Specifically, Fig. 2 indicates the sectional view of the Z-direction of backing roll 121.

As shown in Fig. 2, backing roll 121 is configured to, including outer ring portion 1211, sliding bearing 1212 and axis 1213.In addition, In Fig. 2, sliding bearing 1212-1 and 1212-2 there are two being arranged in the Z-axis direction as sliding bearing 1212 are indicated Example.In the following description, referred to as " sliding when being typically illustrated to sliding bearing 1212-1 and 1212-2 Dynamic bearing 1212 " and be illustrated.In addition, in Fig. 2, indicate setting in the Z-axis direction there are two sliding bearing 1212-1 with And the example of 1212-2, but the present invention is not limited to this, also includes the mode of setting 3 or more sliding bearing 1212.

Outer ring portion 1211 is the component abutted with the outer surface of work piece 200.Sliding bearing 1212 is arranged in outer ring Component between portion 1211 and axis 1213.Axis 1213 is configured in the inside in outer ring portion 1211, is to support in outer ring portion 1211 for energy It is enough to rotate and have the component of hollow structure 122 in inside.At this point, outer ring portion 1211, sliding bearing 1212, axis 1213 are respectively Core be on concentric circles.The outer surface of axis 1213 is contacted and is slided with the inner surface of sliding bearing 1212.Specifically, The outer ring portion 1211 abutted with work piece 200 rotates, and sliding bearing 1212 similarly rotates.The axis that load is supported 1213 cannot rotate, and be fixed on the roller retainer (the roller retainer 902 of aftermentioned Fig. 9 B) of supporting device 120.In outer ring portion 1211 inside is provided with the mechanism by the outer ring portion 1211 bearing for that can rotate.

In addition, in the present embodiment, as described above, as the bearing being set between outer ring portion 1211 and axis 1213 and It is provided with sliding bearing 1212, thus, for example can be improved construction compared with the case where rolling bearing is arranged as the bearing Intensity and the wall thickness that bearing is thinned.When can be improved structural strength, such as it is capable of increasing the bending of the imparting of handle sturcture 150 Therefore load is more suitable for quenching processing unit (plant) 100.In addition, bearing can be reduced when the wall thickness of bearing can be thinned The outer diameter of roller 121.Therefore, even if between the outer surface of the 1st backing roll 121-1 and the end of heating mechanism 130 shown in Fig. 1 Shortest distance L2 be same distance in the case where, bearing position S can be also set in more lean on conveying direction 111 downstream Side.That is, due to can further shorten distance L1, present embodiment can further increase the finished product of bending machining product Rate.

(heating mechanism 130)

Herein, the explanation of Fig. 1 is again returned to.

Heating mechanism 130 is configured at than supporting device 120 by the downstream side of the conveying direction 111 of work piece 200, is pair The mechanism that work piece 200 is heated.For example, heating mechanism 130 is configured to include heating coil, which is being added A part of the length direction (conveying direction 111) of workpiece 200 is configured in a manner of the periphery for covering work piece 200.Specifically For, for example, heating mechanism 130 is configured to, by the control of control device 170, high-frequency current is applied to heating coil, thus Work piece 200 is heated.It is for example provided with from the upstream side of conveying direction 111 downstream in the heating mechanism 130 The interconnecting part of side energization high-frequency current, work piece 200 pass through in the interconnecting part.Specifically, for example, heating mechanism 130 Heating coil winding be arranged in around the interconnecting part, therefore, the inner circumferential side of heating mechanism 130 corresponding with the interconnecting part Space is equivalent to the region of the heating target of heating mechanism 130.

(cooling body 140)

Cooling body 140 is configured at than heating mechanism 130 by the downstream side of the conveying direction 111 of work piece 200 (in quilt It is configured between heating mechanism 130 and handle sturcture 150 on the conveying direction 111 of workpiece 200), it is to by heating mechanism 130 The high-temperature part of work piece 200 after heating carries out cooling mechanism.For example, cooling body 140 is based on control device 170 Control, to the high-temperature part spray cooling medium of the work piece 200 after being heated by heating mechanism 130, thus to the high-temperature portion Divide and is cooled down.Specifically, the jet port for spray cooling medium is provided in cooling body 140, from the jet port Spray cooling medium.In addition, cooling body 140 is configured to, by 170 pairs of cooling mediums sprayed of control device the amount of injection into Row control.In addition, an example as the cooling medium sprayed from cooling body 140, can apply water.

For example, cooling body 140 is configured to, comprising: injecting-unit, in the length direction (conveying direction of work piece 200 111) a part is configured in a manner of covering the periphery of work piece 200；And feed mechanism, it is used for the injecting-unit Supply cooling medium.At this point, feed mechanism is for example by for the flow path for cooling down medium circulation and the pump for recycling cooling medium etc. It constitutes.Specifically, being configured to, it is provided with jet port on injecting-unit, supplies from feed mechanism to the cooling of injecting-unit Medium is sprayed from the jet port.In addition, control device 170 is configured to, by cold to supplying from feed mechanism to injecting-unit But the amount of medium is controlled, and is thus controlled the amount of injection for the cooling medium sprayed by cooling body 140.

(handle sturcture 150)

Handle sturcture 150 is configured at than heating mechanism 130 by the downstream side of the conveying direction 111 of work piece 200, is energy It enough holds work piece 200 and applies the mechanism of bending load to the work piece 200.Specifically, example shown in Fig. 1 In son, handle sturcture 150 can hold be located at it is opposite with the upstream side end 201 of work piece held by conveying mechanism 110 The end of downstream side 202 of the work piece of side, and bending load is applied to the work piece 200.In addition, handle sturcture 150 It is configured to, direction and the size of the bending load applied to work piece 200 is controlled by control device 170.

(cooling medium feed mechanism 160)

It (is in more detail, inside axis 1213 that cooling medium feed mechanism 160, which is to the hollow structure 122 of backing roll 121, The hollow structure 122 being had) supply for cooling down the backing roll 121 (in detail, is axis 1213 shown in Fig. 2, sliding axle Hold 1212 and outer ring portion 1211) cooling medium mechanism.Specifically, cooling medium feed mechanism 160 is configured to, by controlling Device 170 processed controls the supply amount of the cooling medium supplied to hollow structure 122.In addition, as from cooling medium feed mechanism An example of the cooling medium of 160 supplies, is able to use liquid, and water can be applied in the same manner as cooling body 140.At this point, cold But media feed mechanism 160 can make the cooling water of an example as cooling medium recycle and be supplied, or can not also Cooling water is set to recycle and be supplied.

(control device 170)

Control device 170 is, for example, mutually to control conveying mechanism in linkage based on the input information from input unit 180 110, thus the driving of heating mechanism 130, cooling body 140, handle sturcture 150 and cooling medium feed mechanism 160 carries out By 200 bending machining of work piece at the device of the processing of desired shape.Specifically, such as basis of control device 170 The processing conditions information corresponding with shape of product inputted from input unit 180, makes conveying mechanism 110 with defined conveying on one side Speed alongst conveys work piece 200, heats heating mechanism 130 locally to work piece 200, And handle sturcture 150 is made to apply bending load to the heating part after being heated of work piece 200, and it is next at its, make cold But mechanism 140 cools down the heating part of work piece 200.Hereby it is achieved that according to the quilt of desired shape of product The bending machining of workpiece 200.In addition, as needed, control device 170 is for example carried out showing in display device 190 and be come from The control of the operation information that input information, the bending machining of work piece 200 of input unit 180 are handled etc..

(input unit 180)

Input unit 180 is the device that various information are inputted to control device 170.Specifically, such as input unit 180 Processing conditions information corresponding with the said goods shape is inputted to control device 170.

(display device 190)

Display device 190 is the device that various information are shown based on the control of control device 170.Specifically, for example, Input information, the operation information of the bending machining of work piece 200 processing of the display of display device 190 from input unit 180 Deng.In addition, the display device 190 may not be a composition of quenching processing unit (plant) 100, and it can become and be processed with quenching The mutually independent composition of device 100, can also be omitted as needed.

As described above, quenching processing unit (plant) 100 is formed as, including abutting with the outer surface of work piece 200 Supporting device 120 and have the backing roll 121 of the hollow structure 122 passed through for cooling medium in inside.According to this structure At, be able to suppress the backing roll 121 due to caused by the heating of heating mechanism 130 temperature rise etc..In turn, when such as this implementation When mode is provided with hollow structure 122 like that, compared with the case where being not provided with hollow structure 122, backing roll 121 is due to warm And the damage generated is less, can closer configure backing roll 121 relative to heating mechanism 130.Thereby, it is possible to shorten figure Distance L1 shown in 1, therefore the bending machining product as obtained from carrying out bending machining to work piece 200 can be shortened The excess portion of end.As a result, it is possible to improve the yield rate of bending machining product.Furthermore it is possible to inhibit due to heating The temperature of backing roll 121 caused by the heating of mechanism 130 rises, as a result, it is possible to mitigate the damage of backing roll 121, therefore It is able to maintain that the excellent operation of bending machining product.

Herein, so-called yield rate raising refers to, is able to carry out overall length of the length of bending machining relative to work piece 200 It is elongated.When yield rate improves, the additional length that can not be utilized as material in work piece 200 tails off, therefore nothing The case where additional length need to be cut off, is more.That is, cutting operation is cancelled when yield rate improves, therefore, the life of product can be saved Cut off operation in production, therefore the larger advantage in production can be enjoyed.In turn, it is able to suppress fee of material.

Herein, so-called excellent operation refers to, is able to use the processing unit (plant) of the consumable component based on the long-life, accurately Produce the converted products of high quality.The processing unit (plant) of so-called long-life refers to, the lower processing unit (plant) of the replacement frequency of consumables. In the quenching processing unit (plant) 100 of present embodiment, if the replacement frequency of backing roll 121 is lower, processing unit (plant) 100 is quenched Service life long lifetime.When quenching the service life long lifetime of processing unit (plant) 100, productivity can be improved, and become good behaviour Make.

The converted products of so-called high quality refers to, is able to carry out bending machining for the overall length of work piece 200 Range it is longer and by form accuracy highland processing product.The range that can not carry out bending machining (is hereinafter referred to as bent and adds The work limit) length, be roughly equivalent to the distance between bearing position S and the heating mechanism 130 of backing roll 121 L1.Its reason It is, the bending moment assigned in bending machining to the downstream side of work piece 200 is transmitted to the heating zone of work piece 200 Domain, also, the bending moment for being transmitted to the upstream side of work piece 200 is transmitted to the bearing position S of backing roll 121.According to this Kind is constituted, can be to work piece in the range longer than manufacturing limit with a distance from upstream end thereof in work piece 200 The high-temperature area that 200 deformation drag reduces steadily assigns bending moment.As a result, it is possible to accurately bending machining quilts Workpiece 200.In addition, when the range for being able to carry out bending machining is elongated relative to the overall length of work piece 200, curved shape Freedom degree relative to shape of product can increase, and converted products becomes more preferable.

In addition, the backing roll 121 of quenching processing unit (plant) 100 has the outer ring portion abutted with the outer surface of work piece 200 1211 and has the axis 1213 of hollow structure 122 in inside.The bearing of outer ring portion 1211 is that can rotate, and match by axis 1213 It is placed in the inside in outer ring portion 1211.In addition, axis 1213 is able to maintain intensity, as the material of axis 1213, it is also possible to gold Belong to, ceramic or resin.

In addition, in the quenching processing unit (plant) 100 of present embodiment, even if passing through conveying mechanism 110 for work piece In the case that 200 have been transported to the most downstream side of conveying direction 111, also between conveying mechanism 110 and heating mechanism 130 and Different location on the conveying direction 111 of work piece 200 is configured with multiple backing rolls 121 1st backing roll 121-1 and the 2nd backing roll 121-2).According to this composition, in the bending machining of work piece 200, at least Work piece 200 can be supported by the 1st backing roll 121-1 or the 2nd backing roll 121-2, therefore, can at least pass through 1 backing roll 121-1 or the 2nd backing roll 121-2 is acted on curved to bear the bending load due to being applied to work piece 200 Qu Jiagong counter-force.As a result, in the present embodiment, compared with the case where only supporting work piece 200 by a pair of of backing roll 121 Compared with can more stably support work piece 200.It, can will be based on handle sturcture 150 as a result, in the present embodiment Bending load is more stably applied to the high-temperature part of the work piece 200 after being heated by heating mechanism 130, therefore can also mention High bending machining precision.

" the concrete mode example of supporting device 120 "

Secondly, the concrete mode example to supporting device 120 is illustrated.

Fig. 3 A~Fig. 3 C be indicate embodiments of the present invention, and indicate sliding bearing 1212-1 shown in Fig. 2 and The figure of the concrete mode example of 1212-2.It is identical for composition imparting identical with composition shown in Fig. 2 in Fig. 3 A~Fig. 3 C Symbol.Specifically, Fig. 3 A indicates axial direction (Z-direction) length of sliding bearing 1212-1 and 1212-2 than outer ring portion The short example of 1211 axial direction (Z-direction) length.The Z-direction length of Fig. 3 B expression sliding bearing 1212-1 and 1212-2 With the example of the Z-direction same length in outer ring portion 1211, this is identical as situation shown in Fig. 2.Fig. 3 C indicates sliding axle Hold the Z-direction length of the 1212-1 and 1212-2 example longer than the Z-direction length in outer ring portion 1211.In addition, Fig. 2 with And it indicates sliding bearing 1212 being divided into two-part example in the Z-axis direction in Fig. 3 A~Fig. 3 C, but the present invention and unlimited Due to which.

Fig. 4 A~Fig. 4 C is the specific side for indicating embodiments of the present invention, and indicating sliding bearing 1212 shown in Fig. 2 The figure of formula example.In Fig. 4 A~Fig. 4 C, for identical as the identical composition imparting of composition shown in Fig. 2 and Fig. 3 A~Fig. 3 C Symbol.Specifically, sliding bearing 1212 is not split by Fig. 4 A expression in axial direction (Z-direction), and in Z-direction The upper example for constituting a sliding bearing 1212.Sliding bearing 1212 is divided into two parts by Fig. 4 B expression in the Z-axis direction, and The example of two sliding bearings 1212-1 and 1212-2 are constituted in the Z-axis direction, this is identical as situation shown in Fig. 2.Fig. 4 C It indicates sliding bearing 1212 being divided into three parts in the Z-axis direction, and constitutes 3 sliding bearing 1212-1 in the Z-axis direction The example of~1212-3.

In addition, the material of sliding bearing 1212 is not limited to metal material, it is also possible to resin.Sliding bearing 1212 Hardness is preferably smaller than the hardness of axis 1213.The sliding bearing 1212 is characterized in that, passes through axial (Z axis for outer ring portion 1211 Direction) whole face come bear processing counter-force shape.

Secondly, being illustrated to an example of the assemble method of sliding bearing 1212 shown in Fig. 2.Fig. 5 A is to indicate the present invention Embodiment, and indicate the figure of an example of the assemble method of sliding bearing 1212 shown in Fig. 2.Specifically, Fig. 5 A is indicated Outer ring portion 1211 is set in lower fixture 301, the placing sliding bearing 1212 and in the sliding bearing in the outer ring portion 1211 1212 upload and put fixture 302, move upper fixture 302 downward, thus sliding bearing 1212 is assembled in outer ring portion 1211.

In addition, Fig. 5 B is the figure for indicating embodiments of the present invention, and being exaggerated sliding bearing 1212 shown in Fig. 5 A.Such as Shown in Fig. 5 A and Fig. 5 B, slit 12121 is formed on the sliding bearing 1212 of present embodiment.By sliding bearing 1212 When assembling to the outer ring portion 1211 that illustrates in fig. 5, slit 12121 for example can be avoided to be formed by nonmagnetic ceramics Outer ring portion 1211 is damaged, therefore has the effect of being easy to carry out the assembling.Due to being formed with slit on sliding bearing 1212 12121, therefore, when assembling sliding bearing 1212 to the outer ring portion 1211 illustrated in fig. 5, it can be avoided outer ring portion 1211 is damaged.Therefore, sliding bearing 1212 easily can be assembled in outer ring portion 1211.

In addition, the slit 12121 can absorb the heating due to heating mechanism 130 and the thermal expansion that generates.As a result, energy Enough mitigate the sliding bearing 1212 generated due to thermal expansion to the load in outer ring portion 1211, the outer of outer ring portion 1211 can be reduced Diameter.In the present embodiment, it is provided with sliding bearing 1212 between outer ring portion 1211 and axis 1213, therefore is capable of forming slit 12121.But rolling bearing is covered generally in 360 ° of circumferential direction by outline border and inside casing, therefore, it is difficult to form slit 12121. Therefore, it in rolling bearing, can not play to form said effect brought by the slit 12121.

Fig. 5 C is the section for indicating embodiments of the present invention, and being the assemble method of sliding bearing 1212 shown in Fig. 5 A Figure.In addition, Fig. 5 D is the sectional view for indicating embodiments of the present invention, and being the method for dismounting of sliding bearing shown in Fig. 5 C. In Fig. 5 C and Fig. 5 D, identical symbol is assigned for composition identical with the composition of Fig. 5 A and Fig. 5 B.In figure 5d Indicate that setting assembles the outer ring portion 1211 of sliding bearing 1212 on lower fixture 311, makes upper fixture 312 be resisted against sliding bearing The case where 1212 move downward, thus dismantle sliding bearing 1212 from outer ring portion 1211.

Specifically, by method shown in Fig. 5 C, the protrusion of the lower end of upper fixture 302 and the upper end of sliding bearing 1212 Portion is abutted in the circumferential with substantially 360 °, therefore, the circumferential load of the upper end of sliding bearing 1212 generated due to abutting Lotus becomes uniform.Then, by inside from the lower end of upper fixture 302 to the upper end of sliding bearing 1212 with the two be in concentric circles Mode be inserted into.Therefore, stablize required for insertion towards the direction of the load of axial lower section.Also, to sliding bearing 1212 The circumferential load that upper end applies becomes uniformly, stablizes required for insertion towards the direction of the load of axial lower section, therefore, energy Enough mitigate the generation of the load other than the axial direction in outer ring portion 1211.In this way, by using upper fixture 302 and lower fixture 301, energy It is enough easily to configure in outer ring portion 1211 in concentric circles with sliding bearing 1212, in turn, it can make to sliding bearing 1212 Stablize in the direction for the load being inserted into.Therefore, it can reduce due between built-in sliding bearing 1212 and outer ring portion 1211 Bias and therefore the pressing to outer ring portion 1211 that generates can be avoided for example nonmagnetic pottery for constituting outer ring portion 1211 Porcelain generates cracking, breakage.In addition, putting fixture 302 by being uploaded in sliding bearing 1212 and moving upper fixture 302 downward Dynamic, thus, it is possible to sliding bearing 1212 is easily assembled in outer ring portion 1211.

In addition, upper fixture 312 is carried when dismantling sliding bearing 1212 from outer ring portion 1211 by method shown in Fig. 5 D It is put in sliding bearing 1212, presses sliding bearing 1212 towards axial lower section.The load downward generated by pressing is applied It is identical when adding method is with above-mentioned insertion.Also, as shown in Figure 5 D, there is the circle of guidance sliding bearing 1212 on lower fixture 311 The cavity of post shapes, therefore the direction that sliding bearing 1212 moves downward unanimously becomes concentric circles with outer ring portion 1211. As a result, it is possible to mitigate the production due to the load other than the axial direction towards outer ring portion 1211 that sliding bearing 1212 is disassembled and is generated It is raw.

In addition, allowing using as described in Fig. 5 B, in the sliding bearing 1212 of present embodiment, it is formed in the axial direction Slit 12121.Also, as illustrated using Fig. 5 A and Fig. 5 C, by sliding bearing 1212 to 1211 groups of outer ring portion When dress, even if becoming pressing state between axis 1213 and outer ring portion 1211 due to being inserted into and dismantling operation, slit 12121 Gap also becomes smaller, and can be avoided pressing state.By the step that progress is such, such as can prevent from being formed by nonmagnetic ceramics Outer ring portion 1211 generate cracking, damaged.Thus, it is possible to easily assemble the sliding bearing 1212 of present embodiment.

In addition, in the present embodiment, as shown in Fig. 2, dividedly there are two sliding for setting in the axial direction of backing roll 121 Dynamic bearing 1212-1 and 1212-2.The reason is that when outer ring portion 1211 is longer in the axial direction, in sliding bearing 1212 When insertion and disassembly operation, it is easy to produce the positional shift of sliding bearing 1212 Yu the respective core in outer ring portion 1211.As a result, Sometimes pressing state only not can avoid by upper fixture 302, slit 12121, therefore, in order to cope with the situation and to sliding bearing 1212 are split.When being split to sliding bearing 1212, the axial length of every 1 sliding bearing 1212 shortens.As a result, It can reduce the eccentricity of every 1 sliding bearing 1212, therefore can be avoided pressing state.That is, this reality can be assembled easily Apply the sliding bearing of mode.

In addition, in the present embodiment, as shown in Fig. 2, in the inner surface of sliding bearing 1212 and the outer surface of axis 1213 Between small gap can be also set.In this way, adding due to heating mechanism 130 can be absorbed by the way that small gap is arranged Hot and generation thermal expansion, can easily be done the assembling illustrated using Fig. 5 A.

Fig. 6 A~Fig. 6 C is the tool for indicating embodiments of the present invention, and indicating the shape in outer ring portion 1211 shown in Fig. 2 The figure of body mode example.It is identical for being assigned with Fig. 1 and the identical composition of composition shown in Fig. 2 in Fig. 6 A~Fig. 6 C Symbol.In addition, Fig. 6 A~Fig. 6 C indicates the sectional view from X-direction shown in FIG. 1.Specifically, Fig. 6 A indicates outer ring The shape in portion 1211 is the example of cylindrical shape.Fig. 6 B indicates that the shape in outer ring portion 1211 is the example of bobbin shape.Fig. 6 C table The shape for showing outer ring portion 1211 is the example of bowl-type shape.

Fig. 7 A~Fig. 7 C is the tool for indicating embodiments of the present invention, and indicating the configuration in outer ring portion 1211 shown in Fig. 2 The figure of body mode example.It is identical for being assigned with Fig. 1 and the identical composition of composition shown in Fig. 2 in Fig. 7 A~Fig. 7 C Symbol.In addition, Fig. 7 A~Fig. 7 C indicates the sectional view from X-direction shown in FIG. 1.Specifically, Fig. 7 A is indicated right In the case that the work piece 200 of quadrilateral shape guides, outer ring portion 1211 (that is, backing roll 121) is configured in paper The example of left and right (that is, backing roll 121 clips in Y-axis work piece 200 and configured).Fig. 7 B is indicated in the quilt to quadrilateral shape In the case that workpiece 200 guides, outer ring portion 1211 (that is, backing roll 121) is configured at (i.e. backing roll up and down in paper 121 clip on Z axis work piece 200 and are configured) example.Fig. 7 C indicates to carry out in the work piece 200 to quadrilateral shape In the case where guidance, outer ring portion 1211 (that is, backing roll 121) is configured at up and down (that is, 2 in backing roll 121 in paper A backing roll 121 clips on Z axis work piece 200 and is configured, and remaining 2 backing rolls 121 clip work piece in Y-axis 200 and configure) example.

Then, the details of backing roll 121 shown in Fig. 2 etc. is illustrated.When assuming that being in outer ring portion 1211 Substantially outside the bearing of axis 1213 can be rotated mechanism when, due to the load applied on the direction vertical with axis 1213, Bearing is set to generate bending moment.Due in the bending moment generated in the substantially bearing in outside and vertical with axis 1213 The load applied on direction is added, therefore the stress applied to axis 1213 becomes larger.Therefore, it is necessary to the diameter of thickened shaft 1213.But It is that in the present embodiment, sliding bearing 1212 is arranged in built-inly between outer ring portion 1211 and axis 1213.Therefore, in outer ring The inside in portion 1211, axis 1213 can support outer ring portion 1211 as that can rotate.As long as a result, bear geometrically by Compressive surfaces pressure caused by load to the right angle orientation of axis 1213 hardly applies bending force to sliding bearing 1212 Square.Further, it is possible to reduce the stress to sliding bearing 1212 and the application of axis 1213.The outer diameter of axis 1213, and energy can be reduced Enough reduce the outer diameter in outer ring portion 1211.In the present embodiment, when the outer diameter in outer ring portion 1211 becomes smaller, can reduce due to from The heating of heating mechanism 130 and on being influenced caused by outer ring portion 1211, therefore can be by backing roll 121 close to heating mechanism 130 Ground configuration.

Hereinafter, illustrating that heating mechanism 130 carries out induction heating to work piece 200, the temperature of work piece 200 reaches about 850 DEG C~1000 DEG C the case where.In this case, due to heat transfer, the influence of radiant heat, the temperature of supporting device 120 rises. In supporting device 120, especially 121 temperature of backing roll rises.In turn, the case where material in outer ring portion 1211 is magnetic substance Under, due to heating mechanism 130 induction heating and outer ring portion 1211 is directly affected, the temperature of backing roll 121 becomes It is easy to rise.When the distance between heating mechanism 130 and backing roll 121 are closer, the temperature rising of backing roll 121 becomes aobvious It writes.In backing roll 121, when the temperature in axis 1213 and outer ring portion 1211 is more than permissible value (such as 200 DEG C), in rotational work Can, the aspect of structural strength lead to the problem of it is fatefulue.In order to eliminate the problem, in embodiments of the present invention, more preferably By the way of forming outer ring portion 1211 by nonmagnetic material.In addition, being described in the 0051st section of above patent document 2 The content of support guides shown in Fig. 3 is manufactured by non-magnetic material.About this point, patent document 2 it is shown in Fig. 3 Support guides are supported by sliding (fixation), pass through rotation unlike the outer ring portion 1211 of embodiments of the present invention It is supported, it is therefore, different from the technology assumed in embodiments of the present invention.

The general sintering of sliding part in order to prevent in axis 1213 and use lubricating oil.When the temperature of axis 1213 is more than lubrication When the heat resisting temperature of oil, it will lead to the deterioration of lubricating oil and greasy property can not be played, the sliding surface of axis 1213 can be sintered.Into And when the temperature of backing roll 121 is more than permissible value, the surface of the strength reduction of backing roll 121, backing roll 121 generates thermal change Shape cracks in the surface of backing roll 121 (that is, outer ring portion 1211) sometimes.When backing roll 121 is deformed, crackle when, outside Mechanical loosening is generated between circle portion 1211 and axis 1213, therefore the interval of the Y direction of a pair of of backing roll 121 is set from desired Definite value changes.Therefore, when supporting device 120, which becomes, steadily to support work piece 200, the shape of processing dimension is generated Deviation, scale error become larger, and the quality of converted products reduces.In turn, since be easy to deteriorate as backing roll 121 uses ring Border, therefore the service life for quenching processing unit (plant) 100 shortens.Moreover, the replacement frequency of backing roll 121 is got higher, running rate is reduced, therefore It makes a very bad impression to production.

But the backing roll 121 of present embodiment is being internally provided with for the cooling medium for cooling down the backing roll 121 By hollow structure 122, therefore, even if by backing roll 121 configuration near heating mechanism 130, be also able to suppress its temperature Degree rises.Thus it is for example possible to prevent the deterioration of the sliding part of backing roll 121, reduce the thermal deformation in outer ring portion 1211.It is tied The quenching processing unit (plant) 100 of fruit, present embodiment becomes the long-life.

Herein, to due to work piece and backing roll 121 be subject to processing counter-force when outer ring portion 1211 generate stress It is illustrated.Fig. 8 A is to indicate comparative example, and indicate the feelings that rolling bearing 801 is provided between outer ring portion 1211 and axis 1213 The figure of example under condition.Fig. 8 B is to indicate comparative example, and indicate the outer ring portion that the work piece 200 shown in Fig. 8 A is abutted The figure for the stress that 1211 inside generates.In addition, also illustrating the waterproof ring 802 for rolling bearing 801 to be arranged in fig. 8 a.

As shown in Figure 8 A, rolling bearing 801 is axially arranged between outer ring portion 1211 and axis 1213 it is multiple In the case of, gap is generated between multiple rolling bearing 801.When lubricating oil is used for rolling bearing 801, in order to prevent The intrusion of water, it is necessary to which waterproof ring and rolling bearing 801 are adjacently arranged.According to such case, rolling bearing 801 is being used In the case where, when from section, it is difficult to make the inner flat in outer ring portion 1211.Also, generate multiple rolling bearings that Gap between this.As a result, becoming uneven in the stress distribution that the inside in outer ring portion 1211 generates.In the fig. 8b, horizontal axis Indicate that the stress generated in the inside in outer ring portion 1211, the longitudinal axis indicate the axial position of roller.When from section, due to outer The shape of circle inside is bumps, and since the contact surface of rolling bearing and outer ring is discontinuous, is produced in the inside in outer ring portion Raw stress becomes uneven.Therefore, the raised portion of the factor of stress concentration of the load generated due to bending machining can be generated Position, is easy to produce the breakage in outer ring portion 1211.

Fig. 8 C is to indicate embodiments of the present invention, and indicate to be provided with sliding axle between outer ring portion 1211 and axis 1213 The figure of example in the case where holding 1212.In addition, Fig. 8 D is to indicate embodiments of the present invention, and indicate outer shown in Fig. 8 C The figure for the stress that the inside in circle portion 1211 generates.

In the example shown in Fig. 8 C, sliding bearing 1212 is relative to the axially consecutively built-in of outer ring portion 1211.Due to It is continuously so provided with sliding bearing 1212, therefore sliding bearing 1212 can connect in the longitudinal direction via outer ring portion 1211 The load from work piece 200 is born continuously.In addition, when from section, the shape of the inside in outer ring portion 1211 at It is flat.In this way, due to outer ring portion 1211 inside shape be it is flat, further can continuously bear load, because This becomes uniform in the stress distribution that the inside of outer ring generates.That is, the present invention, which has, can mitigate stress concentration and keep stress big Cause uniform effect.

By as in the present embodiment, the interior dress sliding bearing 1212 between outer ring portion 1211 and axis 1213, when from cut The inside in outer ring portion 1211 becomes flat shape when observing in face, and thus, it is possible to obtain capable of mitigating stress to concentrate and make stress Generally uniform such effect.By as in the present embodiment, the interior dress sliding bearing between outer ring portion 1211 and axis 1213 1212, the inside in outer ring portion 1211 becomes flat shape when from section, thus it enables that stress is generally uniform.With Compared with the case where rolling bearing 801 are arranged between axis 1213 in outer ring portion 1211, there is effect below.

As the 1st effect, the structural strength of the shape of backing roll 121 can be improved, therefore, be capable of increasing by handle sturcture The use scope of 150 bending loads generated.Therefore, in the present embodiment, built-in sliding bearing and as bearing 1212, thus, it is possible to increase the freedom degree of the size of the processing load of quenching processing unit (plant) 100.

As the 2nd effect, the wall thickness of bearing can be thinned.Thereby, it is possible to reduce the outer diameter of backing roll 121, therefore, even if In the identical situation of the distance between 1st backing roll 121-1 shown in Fig. 1 and heating mechanism 130 L2, position can will be also supported S is set to be set to more lean on the downstream side of conveying direction 111.That is, can further shorten distance L1.As a result, it is possible to improve processing The yield rate of product.

In general, compared with metal material, ceramic toughness is poor, weaker for impacting, therefore asking there are intensity Topic.Also, the case where in order to make 1211 path of outer ring portion, outer ring portion 1211 be made to become thin wall profile, is more.Further, since empty Between restriction, the case where axial length in outer ring portion 1211 has the length roughly the same with sliding bearing 1212 is more.Therefore, According to toughness, the geometric condition of thin-walled tubular of the ceramics in outer ring portion 1211, outer ring portion 1211 is easy by from cunning The pressing of dynamic bearing 1212 and generate cracking.But in this composition, such as illustrated in fig. 5b, in sliding bearing 1212 On be provided with slit 12121, therefore, as illustrated using Fig. 5 C and Fig. 5 D, by sliding bearing 1212 relative to In operation when outer ring portion 1211 is inserted into and when dismantling, the breakage etc. in outer ring portion 1211 can be prevented.

Secondly, being illustrated from different viewpoints to supporting device 120.

It, can when rotation support mechanism is built in outer ring portion 1211 supporting device 120 such as present embodiment Simplify the composition at the both ends that axis 1213 is fixed, therefore, there is space-efficient effect in layout.When the comparison of such as Fig. 9 A Shown in example like that, when bearing is arranged in the both ends of axis 1213, it is additionally required the installation space of bearing.In Fig. 9 B of present embodiment In, since outer ring portion 1211 will be loaded in rotation support mechanism, it can geometrically realize save space.In figures 9 b and 9, It cannot be rotatably secured to constitute the roller retainer 902 of a part of supporting device 120 due to axis 1213, so can will rotate Outer ring portion 1211 is loaded in supporting device.In general, exist on the periphery of the heating mechanism of quenching processing to heating mechanism 130 The busbar supplied electric power, the heating mechanism processed to quenching carry out cooling cooling tubing.Therefore, such as the comparative example institute of Fig. 9 A Show, in order to mitigate the influence of heating of the heating mechanism 130 to bearing portion, and makes rolling bearing in the Z-direction of backing roll 121 903 from the abutment portion in outer ring portion 1211 from thus making supporting device 120 close to heating mechanism 130, the situation is in terms of space From the perspective of can not say it is appropriate method.On the other hand, in the supporting device of present embodiment 120, due to can It, therefore, will not be with even if supporting device 120 is configured close to heating mechanism 130 from the structurally realization save space of bearing Above-mentioned peripheral equipment interferes.That is, in the present embodiment, also supporting device 120 can be configured from space aspect Near heating mechanism 130.

As long as no matter how its setting direction can access in addition, supporting device 120 can support work piece Above-mentioned effect.That is, the direction of the axis of the backing roll 121 of supporting device 120 can be relative to X/Y plane shown in FIG. 1 vertically Setting, in addition it is also possible to be vertically arranged relative to YZ plane shown in FIG. 1.

Fig. 9 A is the backing roll for indicating comparative example, and indicates that rolling bearing is arranged between axis 1213 and roller retainer 902 The figure of an example in the case where 903.Diagram constitutes the rolling element 901 of rolling bearing in Fig. 9 A.Fig. 9 B is to indicate the present invention Embodiment backing roll 121, and indicate between axis 1213 and outer ring portion 1211 be arranged sliding bearing 1212 in the case where An example figure.The sliding part 904 in the case where backing roll 121 of present embodiment is illustrated in Fig. 9 B.In addition, Fig. 9 C The feelings of the backing roll 121 of present embodiment shown in the case where being the backing roll for comparative example shown in Fig. 9 A and Fig. 9 B Condition indicates the figure of an example of each element.Herein, the axis 1213 of the backing roll as comparative example shown in Fig. 9 A is indicated in Fig. 9 C And the axis 1213 of the backing roll 121 of present embodiment shown in Fig. 9 B material and used mechanical realization steel (SCM material) The case where.

As shown in Figure 9 B, in the present embodiment, between outer ring portion 1211 and axis 1213 there are sliding bearing 1212, because This can shorten the length of axis 1213 as shown in Figure 9 C, and torque becomes smaller, and the diameter of axle can be made to attenuate, therefore, can be by backing roll 121 are arranged close to heating mechanism 130.It as shown in Figure 9 C, will if the length of the axis 1213 of present embodiment is set as 50mm The length of the axis 1213 of comparative example is set as 100mm, then the outer diameter of the axis 1213 of present embodiment can be made to become 80% (17.5mm/22mm=80%).Roller by the way that axis 1213 cannot be rotatably secured to constitute a part of supporting device 120 is protected Frame 902 is held, thus, it is possible to sliding bearing 1212 is arranged between the outer ring portion 1211 and axis 1213.Since axis 1213 cannot rotate Ground is fixed on the roller retainer 902 for constituting a part of supporting device 120, therefore can be reduced to the outer diameter of axis 1213 80%.The backing roll 121 of present embodiment has the function of abutting with work piece 200, in addition, the axis at the position of the abutting Have the function of rotationally supporting in the inside of backing roll 121 into range.

The backing roll 121 of supporting device 120 in the case where straight tube quenching processing, is resistant to work piece as long as having 200 weight and the structural strength of transporting resistance.But to the load that the backing roll 121 used in bending machining applies Lotus, the situation for becoming excessive compared with the load applied to the backing roll 121 used in straight tube quenching processing are more.Its reason It is, for the backing roll 121 used in bending machining, is not only required to the weight and conveying of tolerance work piece 200 The structural strength of resistance, and be required to be resistant to the structural strength for the bending load for applying work piece 200.When to branch When the load that the axis 1213 that runner 121 is supported applies becomes larger, the diameter of axle must be increased in order to reduce its stress.But when When the diameter of axle of axis 1213 becomes larger, the outer diameter in outer ring portion 1211 can become larger.As a result, as shown in Figure 1, if in the defeated of work piece It send on direction, the position (position of the abutting part shown in FIG. 1 abutted with work piece of work piece 200 is supported from backing roll 121 Set S) the distance L1 until the position of heating mechanism 130 is identical, then the outer diameter of backing roll 121 is bigger, outer ring portion 1211 with plus Shortest distance L2 between heat engine structure 130 is shorter.

In addition, the outer ring portion 1211 of present embodiment is for example formed by nonmagnetic ceramics, therefore not by from heating mechanism The influence of 130 electromagnetic induction generated.In this way, in the present embodiment, due to forming outer ring portion by nonmagnetic ceramics 1211, therefore for example can reduce compared with the case where forming the outer ring portion by magnetic substance due to heating mechanism 130 The influence that temperature caused by heating rises.As a result, it is possible to further shorten distance L1 shown in FIG. 1.In addition, outer ring portion As long as therefore 1211 such as nonmagnetic materials in the present invention, are not limited to nonmagnetic ceramics.It is outer as constituting The nonmagnetic material in circle portion 1211, such as the mode of nonmagnetic resin can also will be used to be applied to the present invention.Herein, passing through Nonmagnetic ceramics in the case where forming outer ring portion 1211, as an example of its specific material, can enumerate silicon nitride (Si₃N₄) ceramics.In addition, in the case where forming outer ring portion 1211 by nonmagnetic resin, as its specific material one Example, can enumerate polyether-ether-ketone (PEEK) resin.In turn, it as the nonmagnetic material for constituting outer ring portion 1211, such as can also incite somebody to action It is applied to the present invention using the mode of nonmagnetic stainless steel, that is, austenite stainless steel.

In the present embodiment, the hardness of sliding bearing 1212 is set as smaller than the hardness of axis 1213.Therefore, outer ring portion Sliding bearing 1212 between 1211 and axis 1213 is lost.At this point, sliding bearing 1212 is rotated, so in the circumferential uniformly Ground abrasion.Therefore, the circumferential deviation of the wall thickness of sliding bearing 1212 becomes smaller.As a result, it is possible to prevent due to outer ring portion 1211 Caused by axis 1213 circumferential Localized wear, and reduce partial wear, therefore backing roll 121 is abutted with work piece 200 Bearing position S stablizes.That is, can be realized can steadily maintain bearing position S by using the sliding bearing of present embodiment Supporting device 120.In addition, in the case where specified amount has been lost in sliding bearing 1212, as long as replacement sliding bearing 1212 is Can, as illustrated using above-mentioned Fig. 5 C and Fig. 5 D, replacement is simpler, therefore is also advantageous in production.

Figure 10 A is to indicate embodiments of the present invention, and indicate in the outer ring portion as backing roll 121 shown in Fig. 2 1211 material and in the case where having used austenite stainless steel, which passes through at any time and the temperature change that generates The figure of an example.In addition, Figure 10 B is to indicate embodiments of the present invention, and indicate as the outer of backing roll 121 shown in Fig. 2 The material in circle portion 1211 and in the case where having used nonmagnetic ceramics, which passes through at any time and the temperature change that generates An example figure.The temperature of backing roll 121 at the graphical representation quenching processing unit (plant) Continuous maching of Figure 10 A and Figure 10 B 5 Degree variation, horizontal axis are to pass through the time, and the longitudinal axis is the temperature of backing roll 121.Austria has been used in the material as outer ring portion 1211 In the case where Figure 10 A of family name's system stainless steel, with the progress of processing, temperature rises and reaches about 200 DEG C or so, Cong Benfa It is undesirable from the perspective of bright implementation, but can be applied to the level of implementation of the invention.In addition, as outer ring The material in portion 1211 and in the case where having used Figure 10 B of nonmagnetic ceramics, maximum temperature is about 100 DEG C and becomes substantially permanent It is fixed, therefore from the viewpoint of implementation of the invention, with the material as outer ring portion 1211 and used austenite stainless steel Figure 10 A the case where compare, it may be said that be the material in preferred outer ring portion 1211.The both sides of the curve graph of Figure 10 A and Figure 10 B Become relative to the time pass through and temperature in a manner of fluctuating repeatedly raising and lowering the reason of be, there are quilts for work in-process The period is moved in moving out for workpiece, and in the period without heating, therefore the temperature of backing roll 121 temporarily declines.As The material in outer ring portion 1211, compared with the case where having used austenite stainless steel, in the case where having used nonmagnetic ceramics Superior aspect be, it is big in the relatively low temperature range of maximum temperature (being about 100 DEG C in the example shown in Figure 10 B) Cause it is constant, temperature rising be inhibited.

The backing roll of embodiments of the present invention shown in the case where Figure 10 C is the backing roll for comparative example, Figure 10 A The case where backing roll 121 of embodiments of the present invention shown in 121 the case where and Figure 10 B, indicates based on test processing item The figure of an example of the temperature characterisitic of part.Herein, in fig 1 oc, as the backing roll of comparative example, the material in outer ring portion 1211 is shown For the backing roll of mechanical realization steel (SCM material), in addition, the backing roll 121 as embodiments of the present invention, shows outer ring The material in portion 1211 is backing roll 121 and the material in outer ring portion 1211 shown in Figure 10 A of austenite stainless steel (SUS304) Matter is backing roll 121 shown in Figure 10 B of nonmagnetic ceramics.In fig 1 oc, when in observation per unit product processing time When temperature change, outer ring portion 1211 material be mechanical realization steel comparative example backing roll in temperature change be about 20 DEG C, in contrast, outer ring portion 1211 material be austenite stainless steel embodiments of the present invention backing roll 121 in Temperature change is about 10 DEG C.According to the result of the temperature change in the per unit product processing time it is found that from inhibiting in temperature From the perspective of rising, compared with the backing roll for the comparative example that the material in outer ring portion 1211 is mechanical realization steel, outer ring portion 1211 Material be austenite stainless steel embodiments of the present invention backing roll 121 it is more excellent.In addition, in fig 1 oc, working as sight When examining the temperature change in the regulation process time of multiple products, the material in outer ring portion 1211 is the comparison of mechanical realization steel Temperature is changing into as the rising of significantly temperature and is about 300 DEG C in the backing roll of example, in contrast, in outer ring portion 1211 Material is that in the backing roll 121 of the embodiments of the present invention of austenite stainless steel although temperature change is that temperature rises but stops About 200 DEG C are stayed in, in addition, the material in outer ring portion 1211 is the backing roll of the embodiments of the present invention of nonmagnetic ceramics Temperature change is due to filament saturation in 121 and constant is at about 100 DEG C.According in the regulation process time of multiple product For the result of temperature change it is found that from the viewpoint of inhibiting temperature to rise, the material with outer ring portion 1211 is mechanical realization steel The backing roll of comparative example compare, the material in outer ring portion 1211 is the present invention of austenite stainless steel or nonmagnetic ceramics Embodiment backing roll 121 it is more excellent.In addition, the mutual ratio of material in the outer ring portion 1211 of embodiments of the present invention In relatively, as above-mentioned in Figure 10 A and Figure 10 B, it is known that from the viewpoint of inhibiting temperature to rise in this way, with outer ring portion 1211 material is that the backing roll 121 of the embodiments of the present invention of austenite stainless steel is compared, the material in outer ring portion 1211 Backing roll 121 for the embodiments of the present invention of nonmagnetic ceramics is more excellent.

Secondly, illustrating the construction of backing roll 121 again.

In the backing roll of the comparative example of Fig. 8 A, rolling bearing 801 is set between outer ring portion 1211 and axis 1213, because This, in order to absorb the thermal expansion of rolling bearing 801 and between the inner surface in outer ring portion 1211 and the outer surface of rolling bearing 801 Need gap.When there are the gap, outer ring portion 1211 and the contact area of rolling bearing 801 become smaller.Generally pass through hertz Stress formula determines contact according to factors such as the internal diameter in outer ring portion 1211, the outer diameter of rolling bearing 801, load, elasticity modulus Area.When the stress formula by hertz is to find out contact area, due to being connect in the inside in outer ring portion 1211 there are gap The stress of the inside in the outer ring portion 1211 that contacting surface product is become smaller, therefore generated due to contact is got higher.When the stress is got higher, outer ring The required wall thickness in portion 1211 thickens, therefore outer diameter becomes larger, and distance L1 shown in FIG. 1 becomes larger, yield penalty.

Figure 11 A is to indicate present embodiment of the invention, and indicate the pass between outer ring portion 1211 and sliding bearing 1212 The figure of an example of system.Axis 1213 is omitted in Figure 11 A.As shown in Figure 11 A, in the present embodiment, pass through interference fit 1101 Sliding bearing 1212 is inserted into outer ring portion 1211, therefore becomes the state that sliding bearing 1212 is contacted with outer ring portion 1211, therefore It is capable of increasing the contact area of the abutting part abutted with work piece.When contact area becomes larger, can reduce due to being processed The abutting of part and the stress generated.That is, the sliding bearing 1212 of present embodiment can reduce the inside production in outer ring portion 1211 Raw stress, therefore the wall thickness in outer ring portion can be reduced.On the other hand, Figure 11 B indicates comparative example.Figure 11 B is to indicate comparative example, And indicate the figure of an example of relationship between outer ring portion 1211 and sliding bearing 1212.Axis 1213 is also omitted in Figure 11 B.Such as figure Shown in 11B, in order to absorb the thermal expansion of sliding bearing 1212 and there are gaps between outer ring portion 1211 and sliding bearing 1212 1102.As a result, in the circumferential direction of sliding bearing 1212, the outer ring portion 1211 at abutting part that is abutted with work piece 200 with The contact area of sliding bearing 1212 becomes smaller, therefore becomes larger in the stress that the inside in outer ring portion 1211 generates.When by this embodiment party When Figure 11 A of formula is compared with Figure 11 B of comparative example, the outer ring portion 1211 of present embodiment and the contact of sliding bearing 1212 Area is greater than the outer ring portion 1211 of comparative example and the contact area of sliding bearing 1212, therefore in the outer ring portion of present embodiment The stress that 1211 inside generates is less than the stress generated in the inside in the outer ring portion 1211 of comparative example.Therefore, if to abutting The load that portion applies is identical, then when present embodiment is compared with comparative example, can reduce the inside production in outer ring portion 1211 Raw stress, therefore the wall thickness in the outer ring portion 1211 of present embodiment can be thinned.As a result, present embodiment can reduce outside The outer diameter in circle portion 1211.Furthermore it is possible to the reason of being inserted into interference fit 1101 like that as shown in Figure 11 A, based in sliding bearing Has the effect of slit 12121 in 1212 axial direction.

Slit 12121 is formed on the sliding bearing 1212 of present embodiment, therefore for due to heating mechanism 130 The thermal expansion heated and generated, the gap of slit 12121 being capable of absorbing thermal expansion.That is, in the present embodiment, can reduce by In the tensile load to outer ring portion 1211 that thermal expansion generates.According to such reason, by applying sliding bearing 1212, example Such as even with the outer ring portion 1211 formed by nonmagnetic ceramics, the higher backing roll 121 of durability also can be realized.

In the backing roll of the comparative example of Fig. 8 A, rolling bearing 801, In is provided between outer ring portion 1211 and axis 1213 In example shown in Fig. 8 A, rolling bearing 801 is premised on 360 ° of cylindrical shape.Rolling bearing 801 rolls to make to be in The rolling element of institute's interpolation in bearing 801 swimmingly rotates, it is necessary to be covered in 360 ° of circumferential direction by outline border and inside casing.Therefore, It is difficult to form slit 12121 on rolling bearing 801 as in the present embodiment.That is, use can not be formed on rolling bearing 801 Ceramics are difficult in the slit of thermal expansion, therefore as the material of outer ring.On the other hand, in the present embodiment, as above It is described, due to being provided with sliding bearing 1212 between outer ring portion 1211 and axis 1213, so being capable of forming slit 12121.Its As a result, in the present embodiment, can mitigate and be concentrated to the stress that sliding bearing 1212 applies, therefore can be realized as outer ring The material in portion 1211 and the situation for using nonmagnetic ceramics.

In turn, in the present embodiment, as sliding bearing 1212, so-called oilless bearing also can be used.In this way, such as Fruit uses oilless bearing as sliding bearing 1212, then is not necessarily to lubricating oil, therefore the axis of rolling for generally requiring lubricating oil For holding, viewpoints are also advantageous in terms of maintenance etc..

(other embodiments)

For such as under type in above-mentioned embodiments of the present invention: the handle when holding work piece 200 of conveying mechanism 110 The upstream side end 201 of work piece is held, handle sturcture 150 holds the downstream side of work piece when holding work piece 200 End 202.But the present invention is not limited to which, for example, it is also possible to which conveying mechanism 110 is not held work piece Upstream side end 201 and hold the mode of the middle section of work piece 200, handle sturcture 150 is not held under work piece The mode swum side end 202 and hold the middle section of work piece 200 is applied to the present invention.

In addition, above-mentioned embodiments of the present invention all only show the example of materialization when implementing the present invention, root is not answered Technical scope of the invention is restrictively explained according to these.That is, the present invention can not depart from its technical idea or its master In the case where wanting feature, implement in various ways.

Claims

1. a kind of quenching processing unit (plant), carry out the processing of work piece comprising:

Conveying mechanism alongst conveys above-mentioned work piece；

Supporting device is configured at than above-mentioned conveying mechanism by the downstream side of the conveying direction of above-mentioned work piece, supports above-mentioned quilt Workpiece；And

Heating mechanism heats above-mentioned work piece,

Above-mentioned supporting device includes roller, which abuts with the outer surface of above-mentioned work piece, is had in inside logical for cooling medium The hollow structure crossed,

Above-mentioned roller is formed as, comprising:

Outer ring portion is abutted with the outer surface of above-mentioned work piece；

Axis, configuration is in the inside in above-mentioned outer ring portion, by the bearing of above-mentioned outer ring portion for that can rotate, and has in inside above-mentioned hollow Construction；And

Sliding bearing configures between above-mentioned outer ring portion and above-mentioned axis.

2. quenching processing unit (plant) as described in claim 1, which is characterized in that

Above-mentioned quenching processing unit (plant) also has handle sturcture, which, which is configured at, is processed than above-mentioned heating mechanism by above-mentioned The downstream side of the conveying direction of part can hold above-mentioned work piece and apply bending load to the work piece.

3. quenching processing unit (plant) as claimed in claim 1 or 2, which is characterized in that

Above-mentioned outer ring portion is formed by nonmagnetic material.

4. quenching processing unit (plant) as claimed in claim 3, which is characterized in that

Above-mentioned nonmagnetic material is ceramics or resin.

5. quenching processing unit (plant) according to any one of claims 1 to 4, which is characterized in that

Above-mentioned axis cannot be rotatably secured to roller retainer.

6. the quenching processing unit (plant) as described in any one of claims 1 to 5, which is characterized in that

The inside in above-mentioned outer ring portion is cylindrical shape, and is flat in sectional view.

7. such as quenching processing unit (plant) described in any one of claims 1 to 6, which is characterized in that

Above-mentioned sliding bearing spreads the axial whole region of the sliding bearing and is formed with slit.

8. the quenching processing unit (plant) as described in any one of claims 1 to 7, which is characterized in that

Multiple above-mentioned sliding bearings have been continuously provided in the axial direction of above-mentioned roller.

9. such as quenching processing unit (plant) described in any item of the claim 1 to 8, which is characterized in that

The hardness of above-mentioned sliding bearing is less than the hardness of above-mentioned axis.

10. quenching processing unit (plant) as claimed in any one of claims 1-9 wherein, which is characterized in that

It is inserted in above-mentioned outer ring portion to above-mentioned sliding bearing interference fit.

11. the quenching processing unit (plant) as described in any one of claims 1 to 10, which is characterized in that

Above-mentioned supporting device is formed as, and being arranged on the different location of the conveying direction of above-mentioned work piece, there have to be multiple above-mentioned Roller.

12. the quenching processing unit (plant) as described in any one of claims 1 to 11, which is characterized in that

Above-mentioned quenching processing unit (plant) also has cooling body, which, which is configured at, is processed than above-mentioned heating mechanism by above-mentioned The downstream side of the conveying direction of part cools down the heating part by the above-mentioned work piece after the heating of above-mentioned heating mechanism.