WO2017146173A1 - Dispositif de grenaillage - Google Patents

Dispositif de grenaillage Download PDF

Info

Publication number
WO2017146173A1
WO2017146173A1 PCT/JP2017/006931 JP2017006931W WO2017146173A1 WO 2017146173 A1 WO2017146173 A1 WO 2017146173A1 JP 2017006931 W JP2017006931 W JP 2017006931W WO 2017146173 A1 WO2017146173 A1 WO 2017146173A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil spring
shot peening
load
peening apparatus
shot
Prior art date
Application number
PCT/JP2017/006931
Other languages
English (en)
Japanese (ja)
Inventor
岡田　秀樹
大介 横田
千里 森山
聡史 秋山
雅也 駒崎
剛 永安
Original Assignee
日本発條株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本発條株式会社 filed Critical 日本発條株式会社
Priority to JP2018501773A priority Critical patent/JP6582119B2/ja
Priority to CN201780011608.6A priority patent/CN108698201B/zh
Priority to EP17756611.4A priority patent/EP3421176A4/fr
Publication of WO2017146173A1 publication Critical patent/WO2017146173A1/fr
Priority to US16/107,507 priority patent/US20180354097A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
    • B24C3/20—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by turntables
    • B24C3/24—Apparatus using impellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Definitions

  • the present invention relates to a shot peening apparatus that performs shot peening (stress shot peening) with a coil spring compressed.
  • Patent Document 1 An example of a conventional shot peening apparatus is disclosed in Patent Document 1. This shot peening apparatus projects a shot toward a coil spring from a centrifugal accelerator (impeller) while conveying the coil spring. Patent Document 2 also describes a conventional shot peening apparatus. This shot peening apparatus compresses a coil spring and performs shot peening in a state where stress is applied. That is, this shot peening apparatus generates a larger compressive residual stress in the coil spring by stress shot peening. Further, Patent Document 3 describes an apparatus that performs shot peening while compressing a coil spring on a rotating turntable.
  • Patent Document 1 a shot peening apparatus that simply hits a coil spring has room for improvement in generating a large compressive residual stress in the coil spring.
  • Patent Documents 2 and 3 in an apparatus that performs shot peening while a coil spring is compressed, the coil spring is supported in an unstable state depending on the shape of the coil spring (particularly the shape of the end winding portion). For this reason, stress shot peening may not be performed properly because the coil spring is not stable.
  • an object of the present invention is to provide a shot peening apparatus capable of performing shot peening under a state where a desired stress is applied to a coil spring.
  • a shot peening apparatus includes a turntable mechanism including a turntable that rotates about a revolution axis, a revolution mechanism that rotates the turntable mechanism, and a lower side of the coil spring in a posture in which the coil spring is erected.
  • a holding mechanism that holds the end winding part and the upper end winding part and moves around the revolution axis integrally with the turntable, a rotation mechanism that rotates the holding mechanism around the rotation axis, and the coil spring includes: A pressure mechanism that compresses the coil spring in a state of being held by the holding mechanism, a load detector such as a load cell that detects a compression load applied to the coil spring by the pressure mechanism, and the compressed A projection mechanism that projects a shot toward the coil spring, and a control unit (for example, a personal computer) that detects a change in the load based on a signal output from the load detector. It is provided with a Le computer) and.
  • the load detector is a load cell disposed in a load transmission path between the pressurizing mechanism and the holding mechanism.
  • the control unit may include means for storing a change with time of the load.
  • the said control part may be provided with the display part which displays the time-dependent change of the said load.
  • the control unit may include means for notifying that the load is out of an allowable range while the projection mechanism projects a shot toward the coil spring.
  • the control unit may include a computer program for controlling the pressurizing mechanism so that the load approaches a constant value while the projection mechanism projects a shot toward the coil spring.
  • compressive residual stress can be formed in a coil spring by shot peening (stress shot peening) performed under a condition in which a desired stress is applied to the coil spring, and a coil spring of stable quality can be obtained. Obtainable.
  • FIG. 1 is a perspective view showing an example of a coil spring.
  • FIG. 2 is a flowchart showing an example of a manufacturing process of the coil spring.
  • FIG. 3 is a perspective view schematically showing the first shot peening apparatus.
  • FIG. 4 is a perspective view illustrating an example of a part of the transport device and a transfer mechanism (robot).
  • FIG. 5 is a front view showing a part of the second shot peening apparatus according to one embodiment.
  • 6 is a longitudinal sectional view of the shot peening apparatus shown in FIG.
  • FIG. 7 is a cross-sectional view of the shot peening apparatus shown in FIG.
  • FIG. 8 is a perspective view of a lower holder of the shot peening apparatus shown in FIG.
  • FIG. 9 is a front view showing the lower holder of the shot peening apparatus shown in FIG. 5 and the end winding portion of the coil spring.
  • FIG. 10 is a flowchart showing the operation of the shot peening apparatus shown in FIG.
  • FIG. 11 is a graph showing an example of a change with time of a load generated during warm stress shot peening.
  • FIG. 12 is a graph showing another example of a change with time of a load generated during warm stress shot peening.
  • FIG. 1 shows an example of a coil spring 1.
  • the coil spring 1 is composed of an element wire (wire) 2 wound in a spiral shape. End winding portions 1a and 1b are formed at one end and the other end of the coil spring 1, respectively.
  • the relative positional relationship between one terminal 1 c and the other terminal 1 d is constant according to the type of the coil spring 1.
  • the position around the axis C1 from the terminal 1c of the coil spring 1 may be referred to as "position in the coil circumferential direction" or "position in the winding direction".
  • An example of the coil spring 1 is a cylindrical coil spring, but various types of coil springs such as a barrel coil spring, a drum coil spring, a taper coil spring, and an unequal pitch coil spring are used depending on the specifications of the suspension device. Also good.
  • the end turns 1a and 1b may have a negative pitch (pitch angle is negative) or a positive pitch (pitch angle is positive).
  • FIG. 2 shows an example of the manufacturing process of the coil spring 1.
  • the wire (wire) 2 is formed into a spiral shape using a coiling machine.
  • tempering and annealing are performed in order to remove the strain stress generated in the strand 2 by the forming step S1.
  • the wire 2 is heated to about 400 to 450 ° C. and then gradually cooled.
  • the first shot peening is performed, for example, warm using the residual heat of the heat treatment step S2.
  • the first shot peening apparatus 10 shown in FIG. 3 projects the first shot onto the entire surface of the coil spring 1 at a processing temperature of 250 to 300 ° C., for example. .
  • the first shot is a cut wire having a particle diameter of 1.1 mm, for example.
  • a shot peening apparatus 10 other than the above may be used, or a shot size other than the above (for example, 0.87 to 1.2 mm) may be used.
  • a compressive residual stress is formed from the surface of the coil spring 1 to a relatively deep position.
  • the oxide film (black skin by heat processing) currently formed in the surface of the strand 2 is removed by 1st shot peening process S3.
  • FIG. 3 schematically shows an example of the first shot peening apparatus 10.
  • the first shot peening apparatus 10 includes a pair of rollers 11 and 12 and a shot projector (impeller) 13.
  • a plurality of coil springs 1 are placed in series on the rollers 11 and 12 in a posture in which the axis C1 is horizontal (posture laid sideways).
  • the coil spring 1 on the rollers 11 and 12 continuously moves in the direction indicated by the arrow F1 while rotating around the axis C1.
  • a shot SH1 is projected from the shot projector 13 toward the moving coil spring 1.
  • FIG. 4 shows a transfer device 20 that forms part of the coil spring processing device and a robot 21 that handles the coil spring 1.
  • the conveying device 20 continuously conveys the plurality of coil springs 1 in the direction indicated by the arrow F2.
  • the robot 21 holds the coil spring 1 from both sides by an openable / closable chuck 23 provided at the tip of the arm 22.
  • the robot 21 is an example of a transfer mechanism for moving the coil spring 1.
  • the robot 21 has a function of storing the positions of the terminals 1c and 1d of the coil spring 1 held by the chuck 23 in a memory.
  • the positions of the terminals 1c and 1d of the coil spring 1 held by the robot 21 are regulated in advance by positioning means such as a jig so that the terminals 1c and 1d are at predetermined positions.
  • second shot peening (warm stress shot peening) is performed by the shot peening apparatus 50 shown in FIGS.
  • the second shot peening step S4 is performed in a state where the coil spring 1 is compressed at a temperature lower than that of the first shot peening step S3 (for example, a warm region of 200 to 250 ° C.).
  • the second shot is projected on the entire surface of the coil spring 1.
  • the size of the second shot is smaller than the size of the first shot used in the first shot peening step S3.
  • the second shot is a cut wire having a particle diameter of 0.4 to 0.7 mm, for example.
  • the setting step S5 is performed, the coil spring 1 is further coated in the coating step S6, and finally the quality inspection is performed in the inspection step S7, whereby the coil spring 1 is completed.
  • the second shot peening apparatus 50 constitutes a part of the coil spring processing apparatus.
  • the second shot peening apparatus 50 performs shot peening in a warm region of, for example, 200 to 250 ° C. with the coil spring 1 in a standing posture.
  • the posture in which the coil spring 1 is erected refers to a state in which the axis C1 of the coil spring 1 is substantially vertical.
  • FIG. 5 is a front view showing a part of the second shot peening apparatus 50.
  • FIG. 6 is a longitudinal sectional view of the second shot peening apparatus 50.
  • FIG. 7 is a cross-sectional view of the second shot peening apparatus 50.
  • the second shot peening apparatus 50 includes a housing 51, a turntable mechanism 52, a projection mechanism 57 (shown in FIG. 6), a first lifting mechanism 58, and a second lifting mechanism 59.
  • the projection mechanism 57 includes a first projection unit 55 and a second projection unit 56.
  • the first lifting mechanism 58 and the second lifting mechanism 59 move the projection units 55 and 56 in the vertical direction.
  • the first elevating mechanism 58 and the second elevating mechanism 59 include servo motors 58a and 59a (shown in FIG. 6) whose rotation is controlled by a controller, ball screws 58b and 59b, and the like. These elevating mechanisms 58 and 59 move the projection units 55 and 56 independently in the vertical direction with a constant stroke Y1 and Y2 according to the rotation direction and rotation amount of the servomotors 58a and 59a.
  • a first chamber 61, a second chamber 62, and intermediate chambers 63 and 64 located between the chambers 61 and 62 are formed inside the housing 51. Yes.
  • a coil spring entrance 65 is formed in the first chamber 61.
  • the coil spring inlet / outlet 65 is an opening for taking the coil spring 1 into and out of the first chamber 61 from the outside of the housing 51.
  • a projection port 55a of the first projection unit 55 and a projection port 56a of the second projection unit 56 are arranged in the second chamber 62.
  • a shot SH2 is projected toward the coil spring 1 from the projection ports 55a and 56a.
  • partition walls 70 and 71 are provided between the first chamber 61 and the intermediate chambers 63 and 64.
  • Partitions 72 and 73 are also provided between the second chamber 62 and the intermediate chambers 63 and 64.
  • Seal walls 74 and 75 are formed in the intermediate chambers 63 and 64. The seal walls 74 and 75 prevent the shot SH ⁇ b> 2 projected into the second chamber 62 from moving toward the first chamber 61.
  • the turntable mechanism 52 includes a turntable 79, a revolution mechanism 80 (shown in FIG. 5), a first holding mechanism 81, and a second holding mechanism 82.
  • the turntable 79 rotates around a revolution axis X1 extending in the vertical direction.
  • the revolution mechanism 80 includes a motor. This motor rotates the turntable 79 intermittently by 180 ° around the revolution axis X1 in a first direction R1 and a second direction R2 (shown in FIG. 7).
  • the holding mechanisms 81 and 82 rotate around the revolution axis X1 integrally with the turntable 79.
  • the first holding mechanism 81 has a lower holder 81a and an upper holder 81b.
  • the lower holder 81a is disposed on the turntable 79.
  • the upper holder 81b is arranged to face the upper side of the lower holder 81a.
  • the second holding mechanism 82 also has a lower holder 82a and an upper holder 82b.
  • the lower holder 82 a is disposed on the turntable 79.
  • the upper holder 82b is disposed to face the upper side of the lower holder 82a.
  • the first holding mechanism 81 and the second holding mechanism 82 are disposed at 180 ° rotationally symmetrical positions around the revolution axis X1.
  • Backup plates 83 and 84 (shown in FIG. 7) are disposed behind the first holding mechanism 81 and the second holding mechanism 82 on the turntable 79.
  • a misalignment prevention jig 85 is provided on the lower holder 81a of the first holding mechanism 81 and the lower holder 82a of the second holding mechanism 82, respectively.
  • the lower end winding portion 1 a of the coil spring 1 can be fitted into the misalignment prevention jig 85.
  • 8 and 9 show the lower holder 81a of the first holding mechanism 81.
  • FIG. The configuration of the lower holder 82 a of the second holding mechanism 82 is the same as that of the lower holder 81 a of the first holding mechanism 81. Therefore, the lower holder 81a of the first holding mechanism 81 will be described with reference to FIGS.
  • a misalignment prevention jig 85 is provided in the lower holder 81a.
  • the misalignment prevention jig 85 includes a plurality of (for example, three) claw members 85a, 85b, and 85c.
  • the claw members 85a, 85b, and 85c are arranged according to the shape and pitch angle of the end winding part 1a so that the end winding part 1a of the coil spring 1 can be supported in a stable state.
  • the claw members 85a, 85b, and 85c are arranged at equal intervals (for example, 90 °) in the circumferential direction of the lower holder 81a.
  • the number of claw members of the lower misalignment prevention jig 85 and the number of claw members of the upper misalignment prevention jig 91 may each be other than three. Further, the claw members may be arranged at intervals other than 90 °.
  • Guide grooves 86 a and 86 b are formed in a disk-shaped base member 86.
  • the claw members 85a, 85b, and 85c are movable along the guide grooves 86a and 86b. After the claw members 85a, 85b, and 85c are adjusted to positions corresponding to the end winding portions 1a, the claw members 85a, 85b, and 85c are fixed to the base member 86 by bolts 87 (shown in FIG. 9).
  • Height adjusting members 88 and 89 are provided between the base member 86 and the claw members 85b and 85c.
  • the height adjusting members 88 and 89 have thicknesses T1 and T2 corresponding to the pitch angle of the end portions of the coil spring.
  • the end winding part of a negative pitch can be mounted on the claw members 85a, 85b, 85c in a stable state.
  • the claw members 85a, 85b, and 85c are respectively formed with V-grooves 90 into which the end turn portions 1a are inserted.
  • the upper holders 81b and 82b are provided with misalignment prevention jigs 91 corresponding to the upper end winding portions 1b.
  • the upper misalignment prevention jig 91 has a plurality of (for example, three) claw members corresponding to the shape and pitch angle of the end winding portion 1b, similarly to the lower misalignment misalignment prevention jig 85. Yes. By these claw members, the upper end winding portion 1b is held in a stable state.
  • the upper misalignment prevention jig 91 may have a different form from the lower misalignment prevention jig 85 depending on the shape of the end turn portion 1b.
  • the revolution mechanism 80 (shown in FIG. 5) rotates the turntable 79 around the revolution axis X1. That is, the revolution mechanism 80 rotates the turntable 79 intermittently by 180 ° in the first direction R1 and the second direction R2 (shown in FIG. 7).
  • the first holding mechanism 81 is located in the first chamber 61
  • the second holding mechanism 82 is located in the second chamber 62.
  • the first holding mechanism 81 is located in the second chamber 62.
  • the shot peening apparatus 50 includes a pressurizing mechanism 93 that compresses the coil spring 1 as shown in FIG.
  • the pressurizing mechanism 93 includes pressurizing units 94 and 95 for moving the upper holders 81b and 82b in the vertical direction.
  • An example of the pressure units 94 and 95 includes a ball screw and a servo motor.
  • the pressurizing units 94 and 95 can change the compressive load (stress) applied to the coil spring 1 in accordance with the amount of vertical movement of the upper holders 81b and 82b.
  • a unit that uses a fluid pressure as a driving source such as a hydraulic cylinder, may be used.
  • the first pressurizing unit 94 and the second pressurizing unit 95 are provided with load cells 96 and 97, respectively. These load cells 96 and 97 are examples of load detectors.
  • the load cells (load detectors) 96 and 97 detect a compression load applied to the coil spring 1 during shot peening, and input an electrical signal regarding the detected compression load to the control unit 98.
  • the first load cell 96 is disposed in a load transmission path between the first pressure unit 94 and the upper holder 81b.
  • the second load cell 97 is disposed in a load transmission path between the second pressure unit 95 and the upper holder 82b.
  • the control unit 98 has a function (computer program) for detecting a change in load based on the outputs of the load cells 96 and 97.
  • the control unit 98 has a function of notifying that the load is out of the allowable range during shot peening. Further, the control unit 98 compares the load value output from the load cells 96 and 97 with a predetermined load value set in the control unit 98 in advance.
  • the first pressure unit 94 and the second pressure unit 95 also perform feedback control of signals so that the difference approaches zero, that is, a predetermined load is applied to the coil spring 1. Have.
  • This shot peening apparatus 50 has a rotation mechanism 100.
  • the rotation mechanism 100 rotates the coil spring 1 around the rotation axes X2 and X3.
  • the rotation axes X2 and X3 each extend in a vertical direction.
  • the rotation mechanism 100 includes a lower rotation unit 101 and an upper rotation unit 102.
  • the lower rotating unit 101 rotates the lower holders 81a and 82a around the rotation axes X2 and X3.
  • the upper rotating unit 102 rotates the upper holders 81b and 82b around the rotation axes X2 and X3.
  • the lower rotating unit 101 and the upper rotating unit 102 have driving sources such as a timing belt and a servo motor, respectively.
  • the control unit 98 that controls the driving source rotates the lower rotation unit 101 and the upper rotation unit 102 in the same direction and at the same rotation speed in synchronization with each other. That is, the lower holders 81a and 82a and the upper holders 81b and 82b rotate at the same rotational speed in the same direction in synchronization with each other.
  • the lower holders 81a and 82a and the upper holders 81b and 82b stop at the first rotation stop position or the second rotation stop position set in advance based on data input to the control unit 98 in advance. Can do.
  • An example of the first rotation stop position is a position suitable for the robot 21 to pass the coil spring 1 to the holding mechanisms 81 and 82.
  • An example of the second rotation stop position is a position suitable for taking out the coil spring 1 from the holding mechanisms 81 and 82.
  • An information processing apparatus 110 such as a personal computer is connected to the control unit 98.
  • the information processing apparatus 110 includes an input operation unit 111 capable of inputting a coil spring product number and various data, a display unit 112, and a pointing device 113 such as a mouse.
  • various data relating to the coil spring can be input through the input operation unit 111 or the storage medium 114. is there.
  • the information processing apparatus 110 such as a personal computer also functions as a means for storing a change over time of the load applied to the coil spring 1 during shot peening. Further, the display unit 112 of the information processing apparatus 110 functions as means for displaying a change with time of the load during shot peening. The information processing apparatus 110 may also serve as the control unit 98.
  • FIG. 7 is a cross-sectional view of the first projection unit 55 and the second projection unit 56 as viewed from above.
  • the first projection unit 55 includes an impeller (blade wheel) 121 and a distributor 122.
  • the impeller 121 is rotated by the motor 120.
  • the distributor 122 supplies the shot SH ⁇ b> 2 to the impeller 121.
  • the second projection unit 56 also includes an impeller 126 that is rotated by a motor 125 and a distributor 127 that supplies the shot SH2 to the impeller 126.
  • the first projection unit 55 is supported so as to be movable in the vertical direction along the guide member 130 extending in the vertical direction.
  • the guide member 130 is provided on the side portion of the housing 51.
  • the first projection unit 55 is reciprocated between the ascending position A1 and the descending position B1 with the first elevating mechanism 58 (shown in FIG. 6) as a boundary from the neutral position N1.
  • the second projection unit 56 is also supported so as to be movable in the vertical direction along the guide member 131 extending in the vertical direction.
  • the guide member 131 is provided on the side portion of the housing 51.
  • the second projection unit 56 reciprocates between the ascending position A2 and the descending position B2 with the second elevating mechanism 59 as a boundary from the neutral position N2.
  • FIG. 10 is a flowchart showing the operation of the shot peening apparatus 50 of the present embodiment.
  • step S ⁇ b> 10 in FIG. 10 the lower holder 81 a of the first holding mechanism 81 is stopped in the first chamber 61.
  • the first coil spring 1 is set (placed) on the lower holder 81a by the robot 21 (shown in FIG. 4).
  • the end winding portion 1a placed on the lower holder 81a is stopped by a misalignment prevention jig 91 (shown in FIGS. 8 and 9).
  • the upper holder 81b is lowered, the coil spring 1 is compressed between the lower holder 81a and the upper holder 81b.
  • the second holding mechanism 82 is located in the second chamber 62.
  • the second holding mechanism 82 is in an empty state in which no coil spring is placed.
  • the left coil spring 1 in FIG. 5 is in a free state in which no compression load is applied.
  • the length (free length) of the coil spring 1 in the free state is L1.
  • the coil spring 1 on the right side in FIG. 5 shows a state compressed to a length L2.
  • step S11 in FIG. 10 the turntable 79 rotates 180 ° in the first direction.
  • the coil spring 1 held by the first holding mechanism 81 is sent to the second chamber 62.
  • the second holding mechanism 82 moves to the first chamber 61.
  • step S ⁇ b> 12 the second coil spring 1 is set on the second holding mechanism 82.
  • step S13 shot peening is performed in the second chamber 62 while the compressed first coil spring 1 is rotated (rotated) by the rotation mechanism 100. That is, the shot SH2 is projected onto the first coil spring 1 by the first projection unit 55 and the second projection unit 56 that move in the vertical direction. Since shot peening is performed in a state where stress is applied, a compressive residual stress effective for improving the durability of the coil spring 1 can be formed on the surface layer portion of the coil spring 1.
  • step S14 the turntable 79 rotates 180 ° in the second direction.
  • the coil spring 1 held by the first holding mechanism 81 returns to the first chamber 61.
  • the coil spring 1 held by the second holding mechanism 82 is sent to the second chamber 62.
  • step S15 the upper holder 81b of the first holding mechanism 81 is raised. Then, the first coil spring 1 held by the first holding mechanism 81 is taken out by the robot 21. The third coil spring 1 is set by the robot 21 to the empty first holding mechanism 81. When the upper holder 81b is lowered, the coil spring 1 is compressed.
  • step S16 shot peening is performed in the second chamber 62 while the compressed second coil spring 1 is rotated (rotated) by the rotation mechanism 100. That is, the shot SH2 is projected onto the second coil spring 1 by the first projection unit 55 and the second projection unit 56 that move in the vertical direction.
  • step S17 the turntable 79 rotates 180 ° in the first direction again.
  • the coil spring 1 held by the first holding mechanism 81 is sent to the second chamber 62, and at the same time, the second holding mechanism 82 returns to the first chamber 61.
  • the upper holder 82b of the second holding mechanism 82 is raised.
  • the coil spring 1 held by the second holding mechanism 82 is taken out by the robot 21.
  • the next coil spring 1 is set by the robot 21 to the second holding mechanism 82 thus emptied.
  • the coil holder 1 is compressed by the lowering of the upper holder 82b.
  • FIG. 11 is a graph schematically showing an example of a change with time (relationship between time and load) of a load generated when warm stress shot peening is performed by the shot peening apparatus 50.
  • the coil spring 1 is compressed by the pressurizing mechanism 93.
  • no load is detected because the dead zone of the load cell 96.
  • the load detected by the load cell 96 increases from Z1 to Z2.
  • the pressurizing mechanism 93 is stopped.
  • warm stress shot peening is started from time t3 under the condition that the compression amount (compression stroke) of coil spring 1 is kept constant. This warm stress shot peening is performed until time t4 elapses.
  • the load detected by the load cells 96 and 97 during the warm stress shot peening is constantly monitored by the control unit 98.
  • Information on the detected load is displayed on the display unit 112.
  • this information is stored in the memory or storage medium 114 of the information processing apparatus 110.
  • Information (such as changes in load over time) stored in the storage medium 114 or the like can be taken out whenever necessary. If the detected load change is within an allowable range, it is determined that the warm spring shot peening has been correctly performed with the coil spring applied with a predetermined load.
  • the data regarding the change with time of the load is stored in the built-in memory of the information processing apparatus 110 or the storage medium 114. This also proves that warm stress shot peening is correctly performed on the coil spring, that is, proof of quality assurance.
  • FIG. 12 is a graph schematically showing another example of load change that occurs during warm stress shot peening.
  • the load may suddenly decrease at time t5 and deviate from the allowable range (threshold value).
  • the coil spring 1 may be detached from the first holding mechanism 81 or the second holding mechanism 82 during shot peening. For this reason, when such a rapid load drop is recognized, it is determined that the warm stress shot peening has not been correctly performed, and the coil spring is handled as a defective product.
  • each element constituting the shot peening apparatus can be variously changed.
  • a personal computer may be used as a control unit that processes a signal output from a load cell, or an information processing device that stores a dedicated computer program developed for a shot peening device may be used.
  • a load detector other than the load cell may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Wire Processing (AREA)

Abstract

L'invention concerne un dispositif de grenaillage (50) comprenant : une plaque tournante (79) qui tourne autour d'un axe de révolution (X1) ; des mécanismes de maintien (81, 82) qui se déplacent de façon solidaire avec la plaque tournante (79) ; un mécanisme de pressurisation (93) destiné à comprimer un ressort hélicoïdal (1) ; un mécanisme de rotation (100) destiné à faire tourner le ressort hélicoïdal ; un mécanisme de projection (57) destiné à projeter de la grenaille sur le ressort hélicoïdal comprimé ; des cellules de charge (96, 97) destinées à détecter une charge appliquée sur le ressort hélicoïdal (1) ; et une unité de commande (98). Les changements dans le temps de la charge appliquée sur le ressort hélicoïdal (1) pendant le grenaillage sont détectés par un signal émis par les cellules de charge (96, 97) et reçu par l'unité de commande (98).
PCT/JP2017/006931 2016-02-23 2017-02-23 Dispositif de grenaillage WO2017146173A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2018501773A JP6582119B2 (ja) 2016-02-23 2017-02-23 ショットピーニング装置
CN201780011608.6A CN108698201B (zh) 2016-02-23 2017-02-23 一种喷丸硬化装置
EP17756611.4A EP3421176A4 (fr) 2016-02-23 2017-02-23 Dispositif de grenaillage
US16/107,507 US20180354097A1 (en) 2016-02-23 2018-08-21 Shot peening device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-032138 2016-02-23
JP2016032138 2016-02-23

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/107,507 Continuation US20180354097A1 (en) 2016-02-23 2018-08-21 Shot peening device

Publications (1)

Publication Number Publication Date
WO2017146173A1 true WO2017146173A1 (fr) 2017-08-31

Family

ID=59685679

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/006931 WO2017146173A1 (fr) 2016-02-23 2017-02-23 Dispositif de grenaillage

Country Status (5)

Country Link
US (1) US20180354097A1 (fr)
EP (1) EP3421176A4 (fr)
JP (1) JP6582119B2 (fr)
CN (1) CN108698201B (fr)
WO (1) WO2017146173A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020162450A1 (fr) * 2019-02-04 2020-08-13 日本発條株式会社 Dispositif de grenaillage de précontrainte et procédé de grenaillage de précontrainte

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3744478B1 (fr) * 2019-05-29 2023-03-29 Paul Auer GmbH Dispositif de maintien pour un appareil de sablage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4408643C1 (de) * 1994-03-15 1995-06-22 Krupp Ag Hoesch Krupp Vorrichtung zum Kugelstrahlen von Schraubendruckfedern für Kraftfahrzeuge
DE4419208C1 (de) * 1994-06-01 1995-08-03 Krupp Ag Hoesch Krupp Transportsystem zum Transportieren von Schraubendruckfedern durch eine Kugelstrahlanlage
WO2015136737A1 (fr) * 2014-03-10 2015-09-17 新東工業株式会社 Dispositif de traitement de grenaillage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430542C2 (de) * 1994-08-27 1996-11-21 Krupp Ag Hoesch Krupp Transportsystem zum Transportieren von Schraubendruckfedern durch eine Kugelstrahlanlage
JP3915089B2 (ja) * 2001-12-20 2007-05-16 中央発條株式会社 圧縮コイルばねのセッチング方法及びその装置
CN102343557B (zh) * 2010-08-04 2013-04-24 上海中国弹簧制造有限公司 应力喷丸强压一体机
CN202240940U (zh) * 2011-09-09 2012-05-30 上海中国弹簧制造有限公司 应力抛丸机的压缩旋转机构
JP2015077638A (ja) * 2012-02-13 2015-04-23 新東工業株式会社 ショット処理装置及びショット処理方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4408643C1 (de) * 1994-03-15 1995-06-22 Krupp Ag Hoesch Krupp Vorrichtung zum Kugelstrahlen von Schraubendruckfedern für Kraftfahrzeuge
DE4419208C1 (de) * 1994-06-01 1995-08-03 Krupp Ag Hoesch Krupp Transportsystem zum Transportieren von Schraubendruckfedern durch eine Kugelstrahlanlage
WO2015136737A1 (fr) * 2014-03-10 2015-09-17 新東工業株式会社 Dispositif de traitement de grenaillage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3421176A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020162450A1 (fr) * 2019-02-04 2020-08-13 日本発條株式会社 Dispositif de grenaillage de précontrainte et procédé de grenaillage de précontrainte
JP2020124768A (ja) * 2019-02-04 2020-08-20 日本発條株式会社 ショットピーニング装置およびショットピーニング方法

Also Published As

Publication number Publication date
US20180354097A1 (en) 2018-12-13
EP3421176A4 (fr) 2019-10-30
JPWO2017146173A1 (ja) 2018-11-01
CN108698201B (zh) 2020-06-12
JP6582119B2 (ja) 2019-09-25
EP3421176A1 (fr) 2019-01-02
CN108698201A (zh) 2018-10-23

Similar Documents

Publication Publication Date Title
JP6318048B2 (ja) インペラ昇降式ショットピーニング装置
JP6582119B2 (ja) ショットピーニング装置
JP2022512072A (ja) ラミネーション装置及び方法、それを含む二次電池の製造設備
WO2017146177A1 (fr) Dispositif de traitement à ressort hélicoïdal
US20180133772A1 (en) Plate Roll Bending Machine Bending Control System and Method
JP5768485B2 (ja) 球体研磨装置
CN110026869A (zh) 基板处理装置以及控制方法
CN102651965B (zh) 电子部件安装装置以及电子部件安装方法
US10916794B2 (en) Winding apparatus
CN106129477B (zh) 辊压装置及辊压方法
WO2018163239A1 (fr) Appareil et procédé de correction de fil électrique
JP6554569B2 (ja) インペラ昇降式ショットピーニング装置
KR101415868B1 (ko) 밴딩 장치
JP6503482B2 (ja) コイルばね
CN103395648B (zh) 一种薄带分卷机
JP6312261B2 (ja) 圧延制御装置および圧延装置
WO2016121121A1 (fr) Dispositif de formation de film et procédé de fabrication d'un outil de coupe revêtu
EP4152457A1 (fr) Dispositif de correction de sinuosité pour électrode et procédé de correction de sinuosité pour électrode
JP2017509801A (ja) 基板表面上に材料をスパッタリングするためのスパッタリング装置
JPWO2017122334A1 (ja) 圧延装置及び圧延装置の改造方法
US20180181100A1 (en) Numerical controller
TW201904360A (zh) 電漿處理裝置及表面處理薄膜的製造方法
CN103191963A (zh) 一种异形管弯制工装
JP2022187874A (ja) 成形システム、成形方法、及びプログラム
JP4295977B2 (ja) センタレス研削盤の監視システム

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2018501773

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2017756611

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2017756611

Country of ref document: EP

Effective date: 20180924

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17756611

Country of ref document: EP

Kind code of ref document: A1