JP5833410B2 - Workpiece processing method - Google Patents

Description

  The present invention relates to a method of processing a workpiece, and in particular, processing of a workpiece in which a joint portion where a second member assembly portion is inserted into an assembly hole of a first member and joined together is continuously welded. Regarding the method.

  Generally, a clutch incorporated in an automatic transmission or continuously variable transmission of an automobile includes, for example, a clutch hub and a clutch drum that fits and houses the clutch hub. A plurality of clutch plates are incorporated between the clutch hub and the clutch drum, and a hydraulic piston is slidably accommodated in the clutch drum (see, for example, Patent Document 1).

  Such a clutch drum 100 is, for example, as shown in FIG. 6, a disc-shaped bottom wall portion 111 in which an assembly hole 113 is formed in the center portion, and a cylindrical shape formed on the outer peripheral edge of the bottom wall portion 111. A drum main body 110 having a peripheral wall portion 112 and a columnar shaft 120 in which a cylindrical assembly portion 122 having a large-diameter outer peripheral surface 122a is formed on the base end side of the shaft portion 121 and the shaft portion 121. Prepare.

  The clutch drum 100 is assembled with the inner peripheral surface 113a of the assembly hole 113 by press-fitting the assembly portion 122 of the shaft 120 into the assembly hole 113 formed in the bottom wall portion 111 of the drum main body 110. The outer peripheral surface 122a of the part 122 is joined and assembled. The inner peripheral surface 113a of the assembly hole 113 and the outer peripheral surface 122a of the assembly portion 122 that are fitted to each other are welded in an annular manner along the joint portion by electron beam welding or the like.

JP 2009-208732 A

  However, when the assembly hole 113 provided in the bottom wall portion 111 of the drum main body 110 is misaligned or the like with respect to the bottom wall portion 111, the inner peripheral surface 113a of the assembly hole 113 or the assembly portion When the processing accuracy of the outer peripheral surface 122a of 122 is low, when the assembly portion 122 of the shaft 120 is press-fitted into the assembly hole 113 of the drum body portion 110 and assembled, the shaft center of the shaft 120 and the shaft center of the drum body portion 110 are obtained. The shaft 120 is displaced with respect to the drum main body 110 and assembled.

  On the other hand, when electron beam welding is performed on the joint between the drum main body 110 and the shaft 120, the shaft 120 is displaced or inclined with respect to the drum main body 110 due to the thermal effect of the portion irradiated with the beam. It is known that the axis of the portion 110 and the axis of the shaft 120 are misaligned.

  Here, according to the result of earnest research of the present inventors, when such a drum body 110 and the shaft 120 are fitted and the joint is overlapped with the welding start point and the welding end point and welded in an annular shape, It was confirmed that there is a certain tendency in the welding start point position and the direction in which the shaft 120 tilts with respect to the drum body 110. Further, it was confirmed that even when other members to be fitted to each other were welded in an annular shape, there was a tendency to generate a certain deviation between the welding start point position and the member.

  The present invention has been made by paying attention to the fact that there is a certain correlation between the welding start point position and the position where the deviation of the member tends to occur. The object of the present invention is to improve the machining accuracy of the workpiece by welding. The object is to provide a method of processing a workpiece.

  According to a first aspect of the present invention for solving the above-described problem, the workpiece processing method according to the first aspect of the present invention includes a method for fitting the assembly holes of the first member into the assembly holes of the first member and inserting the assembly portions of the second member together. In the processing method of a work piece which welds between the inner peripheral surface and the outer peripheral surface of the assembly part in an annular shape continuous along the joint part, the assembly part of the second member in the assembly hole of the first member And a runout measuring step for detecting a maximum runout position of the first member relative to the reference axis in the rotational circumferential direction generated when the workpiece inserted is rotated with the second member as a reference axis. A set in which the maximum deflection position of the first member detected in the measurement step and the assembly portion of the member corresponding to the second member are inserted into the assembly hole of the member corresponding to the first member in advance and joined together. When welding between the inner peripheral surface of the perforated hole and the outer peripheral surface of the assembly part in a continuous ring along the joint The first member and the second member are compared by comparing the deviation tendency position data in which the deviation occurrence tendency position of the member corresponding to the first member and the second member with respect to the welding start point position is set. A welding start position setting step of setting a welding start position at a joint portion of the member, and the assembly start hole of the first member and the second member of the second member with the welding start position set in the welding start position setting step as a welding start point And a welding step of welding in an annular shape that is continuous along the joint portion with the assembly portion.

  According to this invention, the maximum shake position in the rotational circumferential direction of the shake generated in the first member in the shake measurement process is measured, and in the welding start position setting process, the maximum shake position and a member corresponding to the first member The deviation tendency position data, in which the deviation occurrence tendency position with the member corresponding to the second member is set in advance, is compared, and the welding start position is set at the joint between the first member and the second member. The welding start position is used as the welding start point and welding is continuously performed along the joint portion between the first member and the second member, so that the maximum runout of the first member is corrected by welding and the product quality is improved. .

  Invention of Claim 2 is a processing method of the workpiece of Claim 1, Comprising: The said shake measurement process arises when the said workpiece is rotated by making the said 2nd member into a reference axis. The phase detector that detects the shake position of the first member in the rotational circumferential direction detects the maximum shake position of the first member, and the welding start position setting step includes the maximum shake position and the deviation tendency position data. In which the welding start position is set by the phase detection device at the joint portion between the first member and the second member, and the joint portion between the first member and the second member is welded. The workpiece is rotated with the second member as a reference axis by the phase detection device at the reference position on the phase detection device corresponding to the welded portion, and the welding start position is determined. The welding start position is positioned at the reference position. In this state, the workpiece is conveyed to a welding device for welding the joint between the first member and the second member of the workpiece, and the welding start position is positioned at the welding portion of the welding device. It is characterized by.

  According to the present invention, the runout measurement process and the welding start position setting process are executed by the phase detection device, and the work start is rotated so that the welding start position is at the reference position on the phase detection device corresponding to the welded portion of the welding device. In this state, the workpiece is carried out to the welding apparatus, and the welding start position is positioned at the welding portion of the welding apparatus. Therefore, by moving the workpiece from the phase detection device to the welding device in that state, the welding start position on the workpiece can be easily positioned at the welded portion of the welding device.

  Invention of Claim 3 is a processing method of the workpiece of Claim 1, Comprising: The said shake measurement process arises when the said workpiece is rotated by making the said 2nd member into a reference axis. The phase detector that detects the shake position of the first member in the rotational circumferential direction detects the maximum shake position of the first member, and the welding start position setting step includes the maximum shake position and the deviation tendency position data. And the welding start position is set by the phase detection device at the joint between the first member and the second member. In the welding step, the workpiece is the first of the workpiece. The joint between the member and the second member is transported and arranged in a welding device for welding, and the welding device includes a welding portion of the welding device based on the welding start position set by the phase detection device. Positioning the welding start position

  According to the present invention, the maximum deflection position of the first member detected by the phase detection device is compared with the preset deviation tendency position data, and the welding start position is set by the phase detection device. On the other hand, the work piece is transported to the welding apparatus, the work piece is placed in the welding apparatus, and the welding portion of the welding apparatus is placed at the welding start position in the work piece based on the welding start position set by the phase detection device. Position. Therefore, the welding part of a welding apparatus can be easily positioned in the welding start position of a workpiece with a welding apparatus.

  A workpiece processing method according to a fourth aspect of the present invention is the workpiece processing method according to any one of the first to third aspects, wherein the run-out measuring step has a preset tolerance. Based on the shake amount determination data, it is determined whether or not the maximum shake of the first member is within an allowable shake amount range.

  According to the present invention, it is possible to select in advance a workpiece whose maximum deflection of the first member based on the assembly error is outside the allowable deflection amount range and a workpiece within the allowable deflection amount range. Therefore, the workpiece outside the allowable runout amount range can be removed at that time, and welding loss due to welding on the workpiece outside the allowable runout range can be prevented.

  According to the present invention, the maximum deflection position of the first member and the deviation tendency position data in which the deviation occurrence tendency position when the member corresponding to the first member and the member corresponding to the second member are welded are set. In contrast, since the welding start position is set at the joint between the first member and the second member, the welding start position is set as the welding start point, and the ring is continuously formed along the joint between the first member and the second member. The maximum run-out is corrected and the product quality is improved.

It is principal part sectional drawing explaining the outline of the phase detection apparatus used for the processing method which concerns on 1st Embodiment. It is the A section enlarged view of FIG. It is process drawing which concerns on this Embodiment. Similarly, it is a figure explaining the effect | action of the processing method which concerns on this Embodiment. It is a figure explaining the outline of the processing method which concerns on 2nd Embodiment. It is a figure explaining the outline of the clutch drum which is a workpiece.

  Next, an embodiment of a workpiece processing method of the present invention will be described by taking as an example a case where the welding method is electron beam welding and the workpiece to be welded is a clutch drum of a transmission. To do.

(First embodiment)
A first embodiment of the present invention will be described with reference to FIGS. 1 to 4, the same reference numerals are given to the same components as those in FIG. 6, and detailed description thereof will be omitted.

  FIG. 1 is a diagram for explaining the outline of a phase detection device used in the processing method according to the present embodiment, and FIG. 2 is an enlarged view of a portion A in FIG.

  This phase detection device 10 uses the clutch drum 100 as a reference when the assembly portion 122 of the shaft 120 serving as the second member is press-fitted into the assembly hole 113 of the drum body 110 serving as the first member. It detects the maximum shake position of the drum main body 110 in the rotational circumferential direction that is generated when the shaft is rotated. The clutch drum 100 from which the maximum deflection position has been detected is transported to a welding device (not shown) disposed adjacent to the phase detection device 10 by a loader hand 130 serving as transport means, and the assembly hole 113 and shaft of the drum main body 110 are transported. The joint part with 120 assembly parts 122 is welded.

  As shown in FIGS. 1 and 2, the phase detection device 10 includes a base 11 b that is erected on the lower support 11 a and extends in the vertical direction, and an upper support that protrudes from the upper portion of the base 11 b so as to face the lower support 11 a. The main body part 11 formed in the side view substantially U shape which has the part 11c is provided. The lower support portion 11 a is provided with a mount 12 that is formed to be rotatable about the center line L and that supports the proximal end side of the shaft 120 of the clutch drum 100.

  The mount 12 includes a cylindrical base portion 12a disposed in the lower support portion 11a, and a hollow inner periphery formed on an assembly portion 122 of the shaft 120 that is rotatably supported by the base portion 12a via a bearing or the like. The seat portion 12b is fitted to the surface 122b to center and support the proximal end of the shaft 120.

  A center mechanism 13 is disposed on the upper support portion 11 c so as to face the mount 12. The center mechanism 13 is rotatably supported by an upper support portion 11c via a rotary ball spline 13d, and a reciprocating spline shaft 13a between an upper limit position and a lower limit position in the vertical direction by an air cylinder 13b. Prepare. The spline shaft 13 a is provided with a center 13 e that fits into a center hole 121 a formed in the shaft portion 121 of the shaft 120.

  A timing pulley 13c is provided on the spline shaft 13a. The timing belt 14d is wound between the timing pulley 13c and the timing pulley 14b provided on the rotating shaft 14a of the step motor 14 disposed on the base 11b, and the rotational force of the step motor 14 is changed to the timing pulley 14b. Then, it is transmitted to the spline shaft 13a via the timing belt 14d and the timing pulley 13c, and the spline shaft 14a rotates around the center line L as a rotation center.

  On the other hand, a measurement gauge 15 serving as a shake detection unit is disposed adjacent to the mount 12. The measurement gauge 15 includes a gauge main body 15a and a contact terminal 15b supported by the gauge main body 15a. The measurement position where the contact terminal 15b contacts the measurement target by the air cylinder 15c and the retreat position where the measurement terminal 15 separates from the measurement target. And move on. When measuring the vibration of the drum main body 110, the contact terminal 15b is switched to a measurement position where the contact terminal 15b contacts along the inner peripheral surface of the corner portion of the bottom wall 111 and the peripheral wall 112 of the drum main body 110, and the clutch drum When the 110 is disposed on the phase detection device 10 and when it is removed from the phase detection device 1, the position is switched to the retracted position away from the inner peripheral surface of the drum main body 110.

  This phase detection device 10 determines whether or not the maximum shake amount of the drum main body 110 is within the allowable shake amount range based on the result of the shake measurement of the clutch drum 100 by the measurement gauge 15. A control unit (not shown) storing data is provided. The control unit further includes a deviation between the drum main body 110 and the shaft 120 that is generated when welding the ring main body 110 and the shaft 120 from the welding start point in the circumferential direction along the joint. The deviation occurrence tendency position data in which the position occurrence tendency position is set in advance is stored.

  This deviation occurrence tendency position data is obtained by pre-inserting the attachment portion of the member corresponding to the shaft 120 into the attachment hole of the member corresponding to the drum main body 110 to be welded, and the fitting hole and attachment portion to be fitted. A displacement generation tendency position with respect to a welding start point position generated when the joint portion is welded in an annular shape is set in advance based on experiments or simulations. For example, in the present embodiment, as shown in FIG. 4A, when the joint portion between the drum main body 110 and the shaft 120 is welded in the circumferential direction, welding is performed around the axis O with respect to the welding start point S. It is assumed that the drum body 110 is displaced in a direction shifted by an angle θ in the direction T, and the deviation occurrence direction is set as a deviation occurrence tendency position A.

  Next, a processing method according to the present embodiment will be described. This will be described with reference to the process diagram shown in FIG.

  As shown in FIG. 3, the processing method includes a press-fit process S2, a runout measurement process S3, a runout amount determination process S4, a welding start position setting process S5, and a welding process S6 as main components.

  First, in assembling the machined drum body 110 and shaft 120, the deposits such as cutting oil and chips are removed by washing in advance (cleaning step S1).

  The drum main body 110 and the shaft 120 cleaned in the cleaning step S1 are dried by an air blower or the like, and then transferred to the press-fitting device. Are fitted or press-fitted and assembled (press-fitting step S2).

  The clutch drum 100 in which the drum main body 110 and the shaft 120 are integrally assembled is carried into the phase detection device 10 and proceeds to the shake measurement step S3. In the shake measurement step S3, the measurement gauge 15 of the phase detection device 10 is held at the retracted position, and the center 13e of the center mechanism 13 is raised to the upper limit position by the air cylinder 13b, and is attached to the assembly portion 122 of the shaft 120. The formed hollow inner peripheral surface 122b is fitted into the seat 12b of the mount 12, and the center 13e is lowered by the air cylinder 13b to fit the center 13e into the center hole 121a formed in the shaft 120. 12 and the center 13e are clamped and positioned so that the axis of the clutch drum 100 is coaxial with the center line L.

  Thereafter, the measurement gauge 15 held at the retracted position is moved to the measurement position by the air cylinder 15c, and the contact terminal 15b is brought into contact with the inner peripheral surface of the drum main body 110 serving as the measurement position.

  In this state, the step motor 14 rotates the center 13d to rotate the clutch drum 100. At this time, in the clutch drum 100 in which the drum main body 110 is displaced with respect to the shaft 12 held on the central axis L, the drum main body 110 rotates while generating a vibration with respect to the central axis L. Therefore, the contact terminal 15b of the measurement gauge 15 that contacts the inner peripheral surface of the drum main body 110 swings with respect to the gauge main body 15a following the swing rotation of the drum main body 110, and this swing width The maximum shake of the drum main body 110 is measured, and the maximum shake position of the clutch drum 100 in the rotational circumferential direction is measured based on the rotational position of the step motor 14.

  The shake amount of the drum body 100 measured in the shake measurement step S3 is compared with the allowable shake amount determination data, and it is determined whether or not the maximum shake amount is within an allowable range (amount of shake determination step S4). When it is determined that the shake amount is within the allowable range (Y in the shake amount determination step S4), the process proceeds to the welding start position setting step S5.

  In the welding start position setting step S5, the maximum deflection position of the drum body 110 detected in the deflection measurement process S3, and the circumferential direction of the joint between the assembly hole 112 of the drum body 110 and the assembly 122 of the shaft 120 The drum body part is compared with the deviation occurrence tendency position data in which the deviation tendency position between the drum body part 110 and the shaft 120 generated when the drum body part 110 and the shaft 120 are welded from the welding start point above. The welding start position S at the joint between 110 and the shaft 120 is set.

  In the present embodiment, for example, as shown in FIG. 4B, the central axis L serving as the center of rotation, that is, the direction I of the measurement point furthest away from the center point O of the shaft 120 is the rotational circumferential direction in the drum main body 110. This is the maximum shake position on R. The maximum deflection position I is compared with the deviation occurrence tendency data, and the welding start position is such that the deviation occurrence tendency position A at which the maximum deflection occurs with welding is opposed to the maximum deflection position I via the center point O. Set to S. That is, the position of 180 ° + angle θ in the anti-welding direction is set as the welding start position S with respect to the maximum deflection position I where the deviation occurrence tendency position A is the position of the angle θ in the anti-welding direction via the center point O. .

  After the welding start position S is set, the process proceeds to the electron beam welding process S6. In the electron beam welding step S <b> 6, first, the control unit performs a step so that a beam irradiation part serving as a welding part of a welding apparatus arranged adjacent to the phase detection device 10 is located at the welding start position S in the clutch drum 100. The motor 15 is rotationally controlled to position the welding start position S at the reference position on the phase detection device 10 corresponding to the beam irradiation unit of the welding device.

  Further, the clutch drum 100 in which the welding start position S is positioned at the reference position of the phase detection device 10 is held as it is, and is held by the loader hand 130 and carried out to the welding device, and the welding start position S in the clutch drum 100 is determined. Positioning in the beam irradiation part of the welding apparatus, the clutch drum 100 is arranged in the welding apparatus.

  The clutch drum 100 disposed in the welding apparatus is subjected to electron beam welding by the welding apparatus. That is, welding between the inner peripheral surface 113a of the assembly hole 113 of the drum main body 110 and the outer peripheral surface 122a of the assembly portion 122 from the welding start position S in the clutch drum 100 is performed in a continuous ring along the joint portion. Then, welding is performed by overlapping the welding start position S to the welding end position. As a result, the maximum deflection position of the drum main body 110 is corrected by the shaft 120 being displaced in the direction indicated by the arrow B.

  In this way, the vibration measurement is performed on the clutch drum 100 in which the displacement of the drum main body 110 and the shaft 120 in the assembled clutch drum 100 is detected, and the maximum vibration position I of the drum main body 110 is detected. The welding start position S is set by comparing the position I and the deviation tendency position data, and electron beam welding is performed from the welding start position S, and the welding start point and the welding end point are overlapped to continuously weld in an annular shape. To do. As a result, the maximum shake position of the drum main body 110 is corrected, the shake of the clutch drum 100 is improved, and the quality of the product is improved.

  After the electron beam welding step S6, the process proceeds to an ultrasonic flaw detection step S7. That is, the clutch drum 100 that has been welded is removed from the welding apparatus, and is installed in an ultrasonic flaw detector (not shown) to perform ultrasonic flaw detection of the clutch drum 100 to detect minute flaws in the clutch drum 100 and the like.

  On the other hand, if it is determined in the shake amount determination step S4 that the maximum shake position is not within the allowable range preset in the control device (N in the shake amount determination step S4), the clutch drum 100 is moved to the phase detection device. 10 is removed (removal S8). The removed clutch drum 100 is collected as a defective product.

  In the present embodiment, the welding start position S is positioned at the reference position of the phase detection device 10 corresponding to the beam irradiation part of the welding device, and is conveyed to the welding device while being positioned by the phase detection device 10. Although the case where the beam irradiation part is positioned at the welding start position S has been described, the beam irradiation part is positioned at the welding start position S in the welding apparatus without positioning the beam irradiation part at the welding start position S in the phase detection device 10. May be.

  That is, after the welding start position S is set by the phase detection device 10, the clutch drum 100 is carried out to the welding device and arranged in the welding device. In the welding device, the data of the welding start position S set by the phase detection device 10 is used. Based on this, the beam irradiation unit is positioned at the welding start position S of the clutch drum 100. For example, the welding start position S in the clutch drum 100 arranged in the welding apparatus may be rotated and positioned to the beam irradiation section by a rotation mechanism of the welding apparatus, or the beam irradiation section may be positioned in the clutch drum 100. You may move to S and position.

  According to this, in the welding apparatus, since the beam irradiation part is positioned at the welding start position S based on the data of the welding start position S set by the phase detection device 10, the welding start position S in the clutch drum 100 is determined. After setting, that is, when carrying out from the phase detection device 10 to the welding device, the beam irradiation unit is surely provided at the welding start position S even if the processing operation is temporarily interrupted or another work process is executed. Can be positioned. As a result, the construction of the work process becomes easy and the work efficiency can be improved.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In FIG. 5, the same components as those in FIGS. 1 to 4 and 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 5 is a diagram for explaining the outline of the phase detection device used in the welding method according to the present embodiment. As illustrated, in the present embodiment, the phase detection device 10 is incorporated in the welding device 20.

  The welding device 20 includes a beam irradiation unit 21 disposed adjacent to the center line L of the phase detection device 10. The clutch drum 100 disposed in the phase detection device 10 is rotated on the mount 12 around the center line L by the rotation driving of the center mechanism 13, and the beam irradiation unit 21 welds the rotating clutch drum 100.

  Next, a processing method according to the present embodiment will be described. After the same cleaning process S1 and press-fitting process S2 as in the first embodiment, the process proceeds to a shake measurement process S3, a shake amount determination process S4, and a welding start position setting process S5. Since these steps are the same as those in the first embodiment, the description thereof is omitted.

  After the welding start position S is set in the welding start position setting step S5, the process proceeds to the electron beam welding step S6.

  In the electron beam welding step S6, the control unit controls the rotation of the step motor 15 so that the beam irradiation unit 21 of the welding apparatus 20 is disposed at the welding start position S in the clutch drum 100, and the beam irradiation of the welding apparatus 20 is performed. The welding start position S is positioned on the part 21.

  The clutch drum 100 in which the beam irradiation unit 21 is positioned at the welding start position S is subjected to electron beam welding in a state where the clutch drum 100 is disposed in the phase detection device 10. Irradiating the welding start position S from the beam irradiation unit 21 and rotating the clutch drum 100 in the welding direction by the step motor 14, the inner peripheral surface 113 a of the assembly hole 113 of the drum main body 110 and the assembly unit from the welding start position S. Between the outer peripheral surface 122a of 122, it welds to the cyclic | annular form continuous along the junction part, and it welds to the welding end position E beyond the welding start position S.

  Thus, in the present embodiment, since the phase detection device 10 is incorporated in the welding device 20, it is necessary to move the clutch drum 100 on which the shake measurement step S <b> 3 has been performed from the phase detection device 10 to the welding device 20. The beam irradiation unit 21 can be positioned at the welding start position S of the clutch drum 100 on the phase detection device 10, and electron beam welding can be performed in this state. That is, since the runout measurement step S3, the welding start position setting step S5 and the electron beam welding step S6 are continuously performed with a single device, the cycle time between the steps can be shortened, and the device The working space can be secured by reducing the arrangement space.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. In the first embodiment, the phase detection device 10 performs shake measurement and setting of the welding start position. In the second embodiment, the phase detection device 10 performs shake measurement and the beam irradiation unit 21 of the welding device 20 Although the case where it is positioned at the welding start position S has been described, for example, the vibration measurement of the drum main body 110 of the clutch drum 100 may be performed by a measuring instrument such as a laser measuring device.

  Further, a marking is attached to the maximum shake position of the drum main body 110, and the welding start position is set based on the comparison result by comparing the marking position with the deviation tendency position data. A separate marking is attached to the welding start position. The clutch drum 100 with the marking at the welding start position is installed in the welding apparatus with the welding start position positioned at the beam irradiation unit. As a result, the clutch drum 100 can be welded without using the phase detection device 10.

  In the above-described embodiment, the case where the welding method is electron beam welding has been described. However, any welding method that overlaps the welding start point and the welding end point, such as laser welding or TIG welding, can be applied.

  In each of the above-described embodiments, the case where the workpiece is the clutch drum 100 of the transmission has been described as an example. However, for example, a shaft-shaped shaft is assembled to the casing of the torque converter. The workpiece can be applied as long as the workpiece is subjected to welding in which the two members are press-fitted or fitted and assembled to overlap the welding start point and the welding end point. In this case, the control unit includes a member corresponding to the first member and a member corresponding to the second member from the welding start point on the circumferential direction of the joint portion of the member corresponding to the first member and the member corresponding to the second member. The deviation occurrence tendency position data in which the deviation occurrence tendency positions of the member corresponding to the first member and the member corresponding to the second member are preset with respect to the welding start point generated when welding is stored.

DESCRIPTION OF SYMBOLS 10 Phase detection apparatus 11 Main-body part 12 Mount 13 Center mechanism 14 Step motor 15 Measurement gauge 20 Welding apparatus 21 Beam irradiation part 100 Clutch drum (workpiece)
110 Drum body (first member)
113 Assembly hole 113a Inner peripheral surface 120 Shaft (second member)
122a Outer peripheral surface S3 Runout measurement step S5 Welding start position setting step S6 Electron beam welding step (welding step)

Claims (4)

An annular ring that is continuous along the joint between the inner peripheral surface of the assembly hole and the outer peripheral surface of the assembly portion, which are joined to each other by fitting the assembly portion of the second member into the assembly hole of the first member. In the processing method of the workpiece to be welded to
The workpiece of the first member on the circumferential direction that is produced when the workpiece in which the assembly portion of the second member is inserted into the assembly hole of the first member is rotated about the second member as a reference axis. A runout measurement process for detecting the maximum runout position with respect to the reference axis;
The maximum deflection position of the first member detected in the deflection measurement step and the assembly portion of the member corresponding to the second member are inserted into the assembly hole of the member corresponding to the first member in advance and joined together. A member corresponding to the first member and a second member with respect to a welding start position generated when welding between the inner peripheral surface of the assembly hole to be performed and the outer peripheral surface of the assembly portion in an annular shape continuous along the joint portion A welding start position setting step of setting a welding start position at a joint portion of the first member and the second member, by comparing with a deviation tendency position data in which a deviation occurrence tendency position of the member corresponding to
Welding step of welding in a continuous ring along the joint portion between the assembly hole of the first member and the assembly portion of the second member with the welding start position set in the welding start position setting step as a welding start point When,
The processing method of the to-be-processed object characterized by providing. The run-out measuring step includes
Detecting a maximum deflection position of the first member with a phase detection device that detects a deflection position of the first member in a rotational circumferential direction generated when the workpiece is rotated with the second member as a reference axis;
The welding start position setting step includes
The phase detection device sets the welding start position at the joint between the first member and the second member by comparing the maximum deflection position and the deviation tendency position data, and the first member and the first member The workpiece is rotated by using the phase detection device with the second member as a reference axis at a reference position on the phase detection device corresponding to a welded portion of a welding device for welding a joint with two members. Position the start position,
The welding process includes
In a state where the welding start position is positioned at the reference position, the workpiece is conveyed to a welding apparatus for welding the joint portion between the first member and the second member of the workpiece, and the welding is performed. Positioning the starting position at the weld of the welding device;
The processing method of the workpiece of Claim 1 characterized by the above-mentioned. The run-out measuring step includes
Detecting a maximum deflection position of the first member with a phase detection device that detects a deflection position of the first member in a rotational circumferential direction generated when the workpiece is rotated with the second member as a reference axis;
The welding start position setting step includes
The phase detection device sets the welding start position at the joint between the first member and the second member by comparing the maximum deflection position and the deviation tendency position data,
The welding process includes
Based on the welding start position set by the phase detector, the workpiece is transferred to a welding device for welding the joint between the first member and the second member of the workpiece. And positioning the welding start position at a welded portion of the welding device in the welding device,
The processing method of the workpiece of Claim 1 characterized by the above-mentioned. The run-out measuring step includes
4. The method according to claim 1, wherein it is determined whether or not a maximum shake of the first member is within a range of an allowable shake amount based on preset allowable shake amount determination data. The processing method of the to-be-processed object of description.

Images