JP2004306252A - Component press-fit method and device, watch manufacturing method, and watch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it difficult to generate a press-fit failure, component deformation, etc. <P>SOLUTION: The component press-fit method is to pressurize the first component W1 and press-fit it in the second component W2. The first component is press-fit in the second component by repeating a depressing step several times to add a depressing force to the first component in the press-fit direction of the second component by means of a depressing means 110. The depressing means is the pressurizing mechanism 110 having a depressing pin 111 and a pressurizing means 112 to pressurize the depressing pin 111. The pressurize means 112 is controlled by a control part 140 to set the pressure and the depressing time for the depressing pin 111. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a component press-fitting method and apparatus and a watch manufacturing method, and more particularly to a manufacturing technique suitable for press-fitting pins into a plate-shaped component.

  2. Description of the Related Art In general, a method of providing a hole or a hole in a certain component and press-fitting another component into the hole or the hole is performed at various manufacturing sites. For example, in a watch production line, there is a component press-in process in which pins are driven into plate-shaped components such as a base plate (base frame) and a train wheel receiver. In the component press-in process, the pins are pressed using a large press machine. We press in with big power.

  As a technique for manufacturing a timepiece having the above-described component press-fitting step, for example, a metal pin 2 is press-fitted into a base frame 1 and a tapping screw 3 is self-tapping into a through hole 21 provided in the metal pin 2. Screwed structures are known. Such a structure is described, for example, in Patent Document 1 below.

JP-A-8-94772 (especially, see FIG. 1).

  However, in the above-mentioned conventional component press-fitting method, pins are press-fitted into the plate-shaped component at a time with a large force, so that the press-fitting posture of the pins or the plate-shaped component is warped. And the yield of the component press-fitting process has been extremely deteriorated. In particular, since there is a strong demand for timepieces to be smaller, thinner, lighter, and the like, there is a situation in which components are likely to be deformed in the component press-fitting process. For example, when the plate-shaped component is made thin, the plate-shaped component is significantly warped or deformed in the component press-fitting step. For this reason, there has been a problem that it is difficult to reduce the thickness of a wristwatch or the like, which also affects the external design.

  Therefore, the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a new component press-fitting method which is less likely to cause poor press-fitting and deformation of components. Another object of the present invention is to realize a novel timepiece manufacturing method that can reduce the size, thickness, and weight of the timepiece by using the component press-fitting method.

  In order to solve the above-mentioned problem, a component press-fitting method according to the present invention is a method for press-fitting a first component into a second component, wherein the pressing means presses the first component into the first component in a press-fit direction with respect to the second component. The first part is press-fitted into the second part by repeating a pressing step of applying pressure a plurality of times.

  According to the present invention, by pressing the first component by a method of repeating the pressing step a plurality of times, the first component can be pressed into the second component even if the pressing force of the pressing unit is reduced. As a result, self-regulation of the first component in the press-fitting direction with respect to the second component becomes easy to work, so that poor press-fitting does not easily occur, and deformation of the component hardly occurs due to a small pressing force. Can be improved.

  In the present invention, a first step of applying the relatively small pressing force for a relatively short time and a second step of subsequently applying the pressing force larger than the first step for a longer time than the first step are performed. It is preferred to have. According to this, since a small pressing force is applied for a short time in the first step, self-regulation of the press-fitting direction of the first component with respect to the second component becomes easier to work, and press-fitting accuracy can be further improved. In the second step, a large pressing force is applied for a long time, so that the first component can be securely pressed into the second component.

  In the present invention, the first step and the second step each preferably include a plurality of pressing steps. By performing the first step and the second step in each of the plurality of pressing steps, press-fitting can be performed even when the pressing force applied in both steps is reduced, so that press-fitting accuracy can be further improved. And deformation of parts can be further suppressed.

  In the present invention, it is preferable that the method further includes, after the second step, a third step of applying the pressing force smaller than that of the second step for a shorter time than that of the second step. By further performing the third step on the first component press-fitted by the relatively large pressing force in the second step, the first component can be reliably pressed into the second component to a predetermined press-fit depth. At the same time, when the final press-fitting depth is reached, a smaller pressing force than in the second step is only applied for a shorter time than in the second step, so that the deformation of the part can be further reduced.

  In the present invention, the third step preferably includes a plurality of pressing steps. By providing a plurality of pressing steps also in the third step, it is possible to more reliably press into the predetermined press-fitting depth, and it is possible to reduce the pressing force and the pressing time in the third step. Can be reduced.

  In the present invention, it is preferable that the first component is a pin and the second component is a plate-shaped component. In the case where the pins are pressed into the plate-shaped component as described above, the plate-shaped component is particularly liable to be deformed. Therefore, the thickness and weight of the plate-shaped component can be easily reduced.

  Next, a component press-fitting device of the present invention is a component press-fitting device for pressurizing a first component and press-fitting it into a second component, wherein a pressing mechanism and a pressing mechanism configured to change a pressing force and a pressing time are provided. It is characterized in that it has a support member arranged opposite to the pressing direction of the pressing mechanism, and a control drive section for controlling the pressing force of the pressing mechanism with time.

  According to the present invention, since the pressing force of the pressing mechanism can be controlled over time by the control driving unit, it is possible to press-fit the component by a plurality of pressing steps.

  In the present invention, the control drive section applies a relatively small pressing force in a relatively short time, and then applies the pressing force greater than the second step for a longer time than the first step. The second step to be added is preferably configured to be sequentially executed by the pressing mechanism. In this case, it is preferable that each of the first step and the second step includes a plurality of pressing steps.

  In the present invention, the control drive unit may cause the pressing mechanism to further execute a third step of applying the pressing force smaller than the second step for a shorter time than the second step after the second step. Preferably, it is configured. In this case, the third step desirably includes a plurality of pressing steps.

  In the present invention, it is preferable to have a moving means for moving the pressing mechanism toward and away from the support. As a result, the pressing stroke of the pressing mechanism can be made small, so that the pressing accuracy can be improved, and thereby the press-fitting accuracy can be increased.

  In the present invention, it is preferable that holding means for pressing and holding the second component on the support is provided. According to this, when the second component is placed on the support, the second component is pressed and held by the holding means, so that the second component is pressed and pressed by the first component. Deformation such as displacement or warpage can be reduced.

  Next, a timepiece manufacturing method according to the present invention is characterized by using any one of the above-described component press-fitting methods. By manufacturing a watch using the above-described component press-fitting method, it is possible to improve the product yield, such as improving the product yield, increasing the component press-in accuracy, and reducing the amount of deformation of the component. it can. Further, since the deformation of the component is suppressed, it is possible to reduce the size, thickness, and weight of the component.

  ADVANTAGE OF THE INVENTION According to this invention, since deformation | transformation of a component is suppressed, it becomes possible to attain size reduction, thickness reduction, and weight reduction of a component.

  Next, with reference to the accompanying drawings, embodiments of a component press-fitting method and apparatus and a timepiece manufacturing method according to the present invention will be described in detail. FIG. 1 is a schematic configuration diagram showing the entire configuration of a component press-fitting device according to an embodiment of the present invention. The component press-fitting device 100 is a pressurizing device for press-fitting a first component W1 into a second component W2. The component press-fitting device 100 includes a pressing mechanism 110 for applying a pressing force to the first component W1, a support portion 120 for supporting the second component W2, and a device for moving the pressing mechanism 110 toward and away from the support. And a moving mechanism 130.

  The pressing mechanism 110 has a pressing pin 111 for applying a pressing force to the first component W1, and pressing means 112 for pressing the pressing pin 111. The pressurizing means 112 has a pressurizing rod 112a in contact with the pressing pin 111, and can be constituted by, for example, a hydraulic cylinder (a hydraulic cylinder, a pneumatic cylinder, or the like). Also, a return means 113 for returning the pressing pin 111 to the back side is provided. The return means 113 is constituted by an elastic member such as a coil spring. A front plate 114 is provided on the front surface (the lower part in the figure) of the pressing mechanism 110. The front plate 114 guides the pressing pin 111 so as to be able to protrude and retract. The holding means 116 is fixed to the front plate 114. The holding means 116 is provided with a holding portion 116a which is attached so as to be able to come and go, and the holding portion 116a is urged toward the support portion 120.

  Behind the front plate 114, a back plate 115 is provided. The back plate 115 supports and fixes the pressing means 112. The back plate 115 is fixed to the moving mechanism 130.

  The support section 120 has a support table 121 for supporting the second component W2, and a positioning table 122 for positioning the support table 121 in a planar position. As the positioning table 122, for example, an XYθ table capable of adjusting the attitude of the support table 121 in the XYθ direction can be used.

  The moving mechanism 130 includes a driving source 131 such as a pneumatic cylinder or a hydraulic cylinder, a movable part 132 that moves up and down by the driving source 131, a connection part 133 fixed to the movable part 132 and connected to the pressing mechanism 110, And a guide shaft 134 for guiding the movable portion 132 up and down. The moving mechanism 130 is configured to operate the driving source 131 to move the pressing mechanism 110 up and down via the movable part 132 and the connection part 133. Here, if a pneumatic cylinder is used as the drive source 131, the size of the device can be easily reduced and the pressure can be easily changed as compared with the case where a hydraulic cylinder is used, which is advantageous from the viewpoint of safety such as fire.

  The pressing means 112 of the pressing mechanism 110 is connected to the control unit 140. The control unit 140 is configured to control the operation of the pressing unit 112 so that the pressing force of the pressing pin 111 driven by the pressing unit 112 can be controlled over time. Here, "controllable with time" means that the temporal change mode of the pressing force can be controlled. More specifically, the pressing means 112 can set the pressing force of the pressing pin 111 to the first component W1 to a predetermined value, and appropriately set the pressing time for maintaining the pressing force at the predetermined value. be able to.

  FIG. 2 is an enlarged partial sectional view showing the pressing mechanism 110 in more detail. The pressing pin 111 has a pressing portion 111a that projects through the guide hole 114a of the front plate 114, and a rear end portion 111b that abuts on the front end block of the pressing rod 112a of the pressing means 112. The rear end 111b is expanded in a flange shape. A return means 113 for returning the pressing pin 111 upward is accommodated between the rear end portion 111b having the increased diameter and the front plate 114. The return means 113 can be constituted by an elastic member, but is a coil spring in the illustrated example. The holding means 116 fixed to the front plate 114 has a holding portion 116a urged downward by a built-in spring.

  In the component press-fitting device 100 described above, the second component W2 is placed on the support base 121, and the first component W1 is arranged on the press-fit portion (through hole in the illustrated example) W2a of the second component W2. Here, the second component W2 may be configured to be suction-held on the support base 121. In addition, it is preferable that the first component W1 is lightly inserted into the press-fit portion W2a.

  In the above state, when the moving mechanism 130 operates under the control of the control unit 140 and the pressing mechanism 110 descends, the holding part 116 of the holding means 116 comes into contact with the second component W2 as shown by the dotted line in FIG. The second component W2 is pressed and held from above by the force. At this time, when the pressing unit 112 is operated by the control unit 140 to cause the pressing rod 112a to protrude, the pressing rod 112a pushes down the pressing pin 111, so that the pressing unit 111a of the pressing pin 111 pushes the first component W1. Press. At this time, since the pressing pin 111 is only in contact with the pressing rod 112a, the pressing direction thereof is not restricted by the pressing rod 112a, and is at the position closest to the first component W1. Since the first component W1 is guided by the guide hole 114a of the front plate 114, the first component W1 can be pressed accurately. That is, the pressing direction of the pressing pin 111 (the vertical direction in the illustrated example) coincides with the guide direction of the guide hole 114a of the front plate 114 with high accuracy.

  FIG. 3 is a graph showing a temporal change of the pressing force applied to the first component W1 according to the present embodiment. In the present embodiment, the first component W1 is pressed into the second component W2 by a plurality of pressing steps by the pressing pin 111. The control unit 140 controls the pressurizing unit 112 in a plurality of steps. The first step TA is a step of executing a pressing step of the pressing force P1 and the pressing time t1, and in the first step TA, it is preferable that the pressing step be repeated a plurality of times as in the illustrated example. Further, the second step TB is a step of executing a pressing step of the pressing force P2 and the pressing time t2, and in the second step TB, it is preferable that the pressing step is repeated a plurality of times as shown in the illustrated example. Further, the third step TC is a step of executing a pressing step of the pressing force P3 and the pressing time t3. In the third step TC, it is preferable that the pressing step is repeated a plurality of times as in the illustrated example.

  In the first step TA, the pressing force P2 of the pressing step of the second step TB is set to be larger than the pressing force P1 of the pressing step. This is because, in the first step TA, since the first component W1 is not completely inserted into the press-fitting portion W2a of the second component W2, the posture of the first component W1 is likely to collapse, and the first component W1 is pressed into the press-fitting portion W2a. Pressing the first component W1 with a small pressing force is not necessarily set to an accurate press-fitting posture with respect to the first component W1. Is required to be set accurately. The pressing time t2 of the pressing step of the second process TB is set to be longer than the pressing time t1 of the pressing process of the first process TA. This is because it is necessary to apply an impact to the first component W1 for a very short time in order to effectively exert the above-described self-regulating action. That is, if the pressing force is applied for a long time, the first component W1 is pressed against the second component W2, so that a sufficient self-regulating action cannot be generated.

  As described above, when the press-fitting posture of the first component W1 is accurately set by the self-regulating action in the first process TA, in the second process TB, the first component W1 is separated from the second component W1 by a large pressing force and a long pressing time. The press-fitting portion W2a of W2 is press-fitted little by little. Here, by executing the second step TB in a plurality of pressing steps, the press-fitting can be performed reliably without giving an excessive impact to the components.

The third step TC is an additional step for securely press-fitting the first component W1 to a predetermined press-fit depth in the press-fit portion W2a of the second component W2. The press-fitting is basically performed substantially in the second step TB. However, in the second step, the pressing force is relatively high, so that the predetermined force is generated by the reaction force when the first component W1 collides with the butting portion of the press-fitting portion W2a. It may return to a position shallower than the press-fitting depth. Therefore, in the third step TC, the first component W1 is pressed with a pressing force P3 smaller than the pressing force P2 in the second step. Thereby, the first component W1 can be more securely press-fitted to the predetermined press-fitting depth.
The pressing time at this time is a pressing time t3 shorter than the pressing time t2 in the second step. As a result, even if the remaining depth with respect to the predetermined press-fitting depth is small, it can be pushed in little by little, so that the effect of further reducing the deviation from the predetermined press-fitting depth of the first component W1 is expected. .

  In the present embodiment, the pressing force P3 in the third step TC is larger than the pressing force P1 in the first step TA. This is because the press-fitting force P2 in the second process TB has already been press-fitted. Therefore, the press-fit force P2 must be smaller than the press force P2 in the second process TB but larger than the press force P1 in the first process TA. This is because the first component W1 cannot be sufficiently pushed in to reach the predetermined press-fitting depth. Further, the pressing time t3 in the third step TC is set shorter than the pressing time t1 in the first step TA. This is because, when the press-fit amount (movement amount) of the first component W1 in one pressing step increases, the rebound when the first component W1 hits the end of the press-fit portion W2a also increases, so that the first component W1 rebounds. This is because the component W1 cannot be accurately pushed into the predetermined press-fitting depth. That is, by reducing the amount of movement of the first component W1 in the depth direction in one pressing step, the amount of the first component W1 rebounding when the first component W1 abuts on the press-fit portion W2a can be reduced. The first component W1 can be pushed to a position closer to the end.

  The control unit 140 can set the pressing force P1, the pressing time t1, and the number of pressing steps in the first process TA. In addition, the pressing force P2, the pressing time t2, and the number of pressing steps in the second step TB can be set. Further, the pressing force P3, the pressing time t3, and the number of pressing steps in the third process TC can be set. In any case, the above-mentioned pressing forces P1 to P3 can be set to a sufficiently small value as compared with the conventional case where the press-fitting is performed in one pressing step. Further, the pressing times t1 to t3 are preferably set to about 0.01 to 1.0 second. The cycle of the pressing step is preferably set to about 0.1 to 1.0 second.

  Further, in the above description, as shown in FIG. 3, the pressing force and the pressing time of the pressing step are constant for each process, but this is not necessarily required. For example, a pressing step in which the pressing force is small and the pressing time is also small at first is performed, and thereafter, the pressing force and the pressing time gradually increase, and at some point, the pressing force and the pressing time decrease again. May be set to follow. If the accuracy of the press-fit depth of the first component W1 is not so important, the third step may be omitted. The pressing force P1 and pressing time t1 of the first step TA, the pressing force P2 and pressing time t2 of the second step TB, and the pressing force P3 and pressing time t3 of the third step TC in FIG. 3 are indicated by rectangular waves. However, this is schematically shown, and the shape may be a triangular wave, a sine wave, or the like.

  FIG. 4 is an enlarged sectional view showing a component press-fitting structure press-fitted by using the apparatus and the method of the present embodiment. This structure corresponds to a part of the movement of the wristwatch. Here, a metal pin W1 made of a material such as brass or stainless steel corresponding to the first component W1 is press-fitted and fixed to a metal base plate W2 corresponding to the second component W2. Brass or stainless steel is used as the material of the base plate. Here, the metal pin W1 includes a distal end portion W11 having a small diameter, an intermediate portion W12 having an outer diameter slightly larger than the distal end portion W11, a base end portion W13 having an outer shape slightly larger than the intermediate portion W12, and a base end portion. An enlarged diameter portion W14 that protrudes in a flange shape adjacent to W13. Here, it is desirable that the metal pin is made of a material having a property of work hardening (brass, stainless steel, or the like). The outer peripheral portion of the enlarged diameter portion W14 does not engage with the main plate W2, and only the base end portion W13 is pressed into the main plate W2. When the outer peripheral portion of the enlarged diameter portion W14 engages with the main plate W2 and is press-fitted, the main plate easily warps at the time of press-fitting. Therefore, only W2a of the base end portion W13 is press-fitted with the main plate W2. ing. In FIG. 4, a step is provided between the bottom surface of the enlarged diameter portion W14 and the base plate W2, but it is preferable that there is no step. When fixing the screw 3, the pressing force is received by both the metal pin W1 and the main plate W2, so that the deformation of the entire movement can be minimized. Here, it is desirable that the surface of the press-fit portion W2a of the metal pin W1 be subjected to “knurling” or “streaking”. This is because, at the time of press-fitting, the contact area with the main plate W2 increases, and the fixing force increases.

  In this case, before the component press-fitting, the component is placed on the support base 121 with only the tip end W11 inserted into the press-fitting portion W2a, which is a through hole of the main plate. Then, in the first step TA, the intermediate portion W12 is gradually inserted into the press-fit portion W2a, and the vertical posture of the metal pin is regulated. Then, in the second step TB, the base end portion W13 is pressed into the hole with a large pressing force. Finally, in the third step TC, the press-fit portion W2a is pushed until the step surface W1b of the enlarged diameter portion W14 comes into contact with the opening edge W2b corresponding to the end of the press-fit portion W2a. Thereby, the metal pin has reached the predetermined press-fitting depth. In FIG. 4, the receiving plate 4 and the holding plate 8 are superimposed on the main plate W2, and are fixed by screws 3 screwed to the metal pins W1. The screw 3 is preferably a tapping screw that is screwed into the metal pin W1 by self-tapping. Here, since the outer periphery of the metal pin W1 is work-hardened at the contact portion of the main plate W2 with the press-fit portion W2a, it is possible to increase the mechanical strength while suppressing deformation of the main plate W2 by press-fitting. Utilizing, the base frame of the movement is strengthened, and the size and thickness of the entire timepiece can be reduced. Further, a processing step for individually increasing the strength of each component (metal pin W1, ground plate W2) is not required.

  FIG. 5 is a sectional view showing a part of the structure of the movement of the wristwatch. In this structure, between the base frame 1 and the holding member 4, a stepping motor including the rotor 12 and the stator 13, and a clock component such as a fifth wheel 14, a fourth wheel 15, a second wheel 16, and an hour wheel 17 are arranged. Have been. In addition, a circuit receiver 6, a circuit block 7, a battery plus terminal 8, and the like are also arranged. The metal pin 2 is press-fitted and fixed to the base frame 1 in the same manner as described above, and a screw 3 is screwed into the metal pin 2 from the side opposite to the press-fit direction of the metal pin 2.

When the metal pin 2 (corresponding to the first component W1) is pressed into the base frame 1 (corresponding to the second component W2) according to the method of the present embodiment, the metal pin 2 is press-fitted by the conventional method. As a result, the impact force of each component at the time of press fitting is greatly reduced. As a result, poor press-fitting and component deformation can be reduced. Further, when a component to be press-fitted is used as a part of a conductive path (for example, when the metal pin 2 is used as a conductive connection member), the work hardening of the metal pin 2 itself is reduced due to a small impact force received at the time of press-fitting. Since the crystal structure is suppressed and the crystal structure is maintained with almost no transition, there is also an advantage that the movement of electrons is not hindered, and a decrease in conductivity is suppressed, whereby the connection resistance can be reduced. Further, when the tapping screw 3 is screwed into the metal pin 2 by self-tapping as described above, an area where the metal pin 2 is hardened due to the impact force received by the metal pin 2 is contacted at the time of press-fitting. Since the tapping screw 3 is limited to the vicinity of the portion, the hardening of the portion to be tapped by the tapping screw 3 (the inside of the hole of the metal pin 2) is suppressed, so that there is an advantage that tapping is easily performed. The base frame is not limited to the main plate, but may be a train wheel receiver, a case body, a dial, a back cover, or a case body and a back cover integrated.
Here, in FIG. 5, when the metal pin 2 is press-fitted into the base frame 1 by the method of the present embodiment, the impact force at the time of press-fitting of each component is significantly reduced as compared with the case where the metal pin 2 is press-fitted by the conventional method. Therefore, warpage of the base frame 1 itself can be prevented. Thereby, the gap between the stator 13 and the base frame 1 can be reduced to zero. That is, conventionally, when the stator 13 is mounted and the screw is tightened with the tapping screw 3 in a state where the base frame 1 is warped, magnetic distortion occurs in the stator 13, so that the power consumption of the step motor is reduced. There was a problem that it would increase. In addition, since the above-described gap must be provided, there is a problem that the thickness of the entire timepiece increases. Further, since the above-described gap must be provided, the base plate is subjected to a leaching process, so that a cutting process must be performed, and there is a problem that the strength of the base frame is reduced. However, in the method of the present embodiment, since the warp of the base frame 1 itself can be prevented, the power consumption of the step motor can be reduced, the thickness of the entire timepiece can be reduced, and the cutting of the main plate can be eliminated. Was.

  It should be noted that the component press-fitting method and apparatus and the watch manufacturing method of the present invention are not limited to the illustrated examples described above, and it is needless to say that various changes can be made without departing from the gist of the present invention. .

FIG. 1 is a schematic configuration diagram schematically illustrating an entire configuration of a component press-fitting device according to an embodiment. FIG. 3 is an enlarged partial cross-sectional view of the pressing mechanism of the embodiment. 6 is a graph showing a change over time of a pressing force in the press-fitting method according to the embodiment. FIG. 2 is an enlarged cross-sectional view illustrating a press-fit structure formed by the method and the apparatus according to the embodiment. FIG. 2 is a schematic cross-sectional view of the inside of the timepiece formed by the method and apparatus of the embodiment.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 100 ... Component press-in apparatus, 110 ... Pressing mechanism, 111 ... Pressing pin, 112 ... Pressing means, 113 ... Return means, 114 ... Front plate, 115 ... Back plate, 116 ... Retaining means, 120 ... Support part, 121 ... Support Table, 122: positioning table, 130: moving mechanism, 140: control unit

Claims (13)

  A method of press-fitting a first component into a second component, wherein the pressing step of applying a pressing force in the press-fitting direction to the second component by the pressing means is repeated a plurality of times by a pressing unit. Is press-fitted into the second component.   A first step of applying the relatively small pressing force for a relatively short time; and a second step of applying the pressing force larger than the first step for a longer time than the first step. The component press-fitting method according to claim 1, wherein   The component press-fitting method according to claim 2, wherein the first step and the second step each include a plurality of pressing steps.   4. The component press-fitting method according to claim 2, further comprising, after the second step, a third step of applying the pressing force smaller than the second step for a shorter time than the second step. 5.   The component press-fitting method according to claim 4, wherein the third step includes a plurality of pressing steps.   The component press-fitting method according to any one of claims 1 to 5, wherein the first component is a pin, and the second component is a plate-shaped component. A component press-fitting device for pressurizing a first component and press-fitting it into a second component,
It has a pressing mechanism configured to be able to change the pressing force and the pressing time, a support body arranged to face the pressing direction of the pressing mechanism, and a control drive unit that controls the pressing force of the pressing mechanism with time. A component press-fitting device.   A first step of applying the relatively small pressing force in a relatively short time; and a second step of applying the pressing force greater than the second step for a longer time than the first step. The component press-fitting device according to claim 7, wherein the pressing mechanism is configured to sequentially execute the following.   The control drive unit is configured to cause the pressing mechanism to further execute a third step of applying the pressing force smaller than the second step for a shorter time than the second step after the second step. The component press-fitting device according to claim 8, wherein:   The component press-fitting device according to any one of claims 7 to 9, further comprising a moving unit configured to move the pressing mechanism toward and away from the support.   The component press-fitting device according to any one of claims 7 to 10, further comprising holding means for pressing and holding the second component on the support.   A method for manufacturing a timepiece, comprising using the component press-fitting method according to any one of claims 1 to 6. A timepiece manufactured by the manufacturing method according to claim 12.

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