JPH07180741A - Compressed spring assembling device - Google Patents

Abstract

PURPOSE:To enable a compression spring to be excellently compressed regardless of the number of its winding, and also enable its upper end to be held by an upper support when the upper support is installed on the spring in a state that the compression spring is compressed while being interspaced with a lower support. CONSTITUTION:The upper end of a compression spring 102 is positioned by the guide surface 56 of a guide member 5a, it is concurrently engaged with the pawl section 60 of an engaging pawl 52a, and the compression spring 102 is kept compressing until the upper end of a piston rod 108 is protruded by letting a going up and down member 16 be lowered with the aforesaid condition kept as is. After that, an upper support is installed on the upper end of the piston rod 108, and when the engaging pawl 52a is evacuated thereafter, the compression spring 102 is extended upward with its engagement released from the pawl section 60, so that it is thereby held by the upper support installed on the piston rod 108.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention attaches a second holding member for holding the other end of a compression coil spring to a mounted member provided with a first holding member for holding one end of the compression coil spring. The present invention relates to a spring compression assembling device that compresses the compression coil spring with the first holding member.

[0002]

2. Description of the Related Art As one type of vehicle suspension device, there is a strut type suspension in which a compression coil spring is arranged on the outer periphery of a shock absorber. The compression coil spring is held in a compressed state by a pair of holding members arranged on the cylinder tube side and the piston rod side of the shock absorber. When assembling a compression coil spring to a mounted member such as a shock absorber in a compressed state, one holding member is arranged in advance on the mounted member and the compression coil spring is pressed against the holding member to compress. Then, in that state, the other holding member will be attached to the mounted member,
Conventionally, a plurality of engaging claws are engaged with the intermediate portion of the compression coil spring from the outer peripheral side, and are moved in the axial direction of the mounted member for compression.

[0003]

However, when the engaging claw is engaged with the intermediate portion of the compression coil spring for compression in this way and the winding number of the spring is different, the engaging claw is engaged from the outer peripheral side. When contacting the compression coil spring, it may not be possible to properly engage all the engaging claws, and if the compression coil spring is compressed as it is, the posture becomes unstable and other members such as the mounted member Could interfere with.

On the other hand, for example, actual Kaihei 4-91036
It is conceivable to utilize a spring compression mechanism as described in Japanese Patent Laid-Open Publication No. 2004-242242 to engage a compression member with the end of the compression coil spring for compression. By doing this, compression can be performed without being affected by the number of turns of the spring,
Even if the holding member is attached to the mounted member in the compressed state,
Since the compression member exists between the holding member and the compression coil spring, the other end of the compression coil spring cannot be held by the holding member.

The present invention has been made in view of the above circumstances, and its purpose is to always satisfactorily compress the compression coil spring regardless of the number of windings of the spring and hold it between the pair of holding members. It is to provide a spring compression assembling device capable of performing the above.

[0006]

In order to achieve such an object, the present invention is to hold a second end of a compression coil spring on a mounted member having a first holding member for holding one end of the compression coil spring. A spring compression assembling device for compressing the compression coil spring between the first holding member and the second holding member,
(A) Engage with the outer peripheral portion of the other end of the compression coil spring naturally arranged on the mounted member, and position the compression coil spring within a plane substantially perpendicular to the axial center of the compression coil spring; A guide member having a guide surface that allows the passage of the compression coil spring in the axial direction, and (b) the guide member is immovable in the axial direction relative to the guide member and is positioned by the guide surface. An engaging position that engages with the other end of the compression coil spring and prevents the other end from passing through the guide member;
An engaging pawl movably arranged to a retracted position that allows the other end of the compression coil spring to pass through the guide member; and (c) the engaging pawl to the engaging position and the retracted position. And (d) the guide member and the mounted member are relatively moved in a direction substantially the same as the axial direction of the compression coil spring to move the first holding member and the engaging claw. And an axial moving means for compressing the compression coil spring between them.

[0007]

In such a spring compression assembling apparatus, first, for example, the guide member and the mounted member are relatively moved by the axial moving means while the engaging pawl is positioned at the engaging position by the pawl moving means. By doing so, the other end of the compression coil spring, which is naturally arranged in the mounted member, is fitted into the inside of the guide surface of the guide member for positioning, and is engaged with the engaging claw. Subsequently, when the guide member and the mounted member are relatively moved by the axial moving means, the compression coil spring engaged with the engagement claw is compressed between the first holding member and the predetermined compression state. Then, the relative movement is stopped, and the second holding member is attached to the attached member by an automatic attachment device or a manual operation by an operator. Since the engaging claw is engaged with the other end of the compression coil spring, it can be reliably engaged and compressed even when the number of turns of the spring is different, and the other end of the compression coil spring is positioned by the guide surface of the guide member. Therefore, it is always compressed in a stable posture.

After that, when the engaging claw is moved to the retracted position by the claw moving means, the compression coil spring expands by its own spring force, and the other end passes through the inside of the guide surface of the guide member and the second holding member. Held by. Since the other end of the compression coil spring is positioned by the guide member, there is no risk of the other end being displaced due to friction between the two when the engaging claw is moved to the retracted position. Holds well. Further, in this state, at least the other end of the compression coil spring can pass through the guide surface of the guide member. Therefore, if the second holding member has substantially the same outer diameter as the other end of the compression coil spring, for example, in the axial direction. The moving member relatively moves the guide member and the mounted member in a direction opposite to the direction when the spring is compressed, so that the mounted member on which the second holding member and the compression coil spring are mounted can be taken out from the guide member.

Here, the guide member may be constituted by a single member provided with a guide hole whose inner peripheral surface forms a guide surface, but a plurality of members having an arc-shaped guide surface at the tip thereof may be used. In this case, if the plurality of members are separated from each other after the assembling is completed, even if the second holding member is relatively large, the mounted member to which the compression coil spring is assembled is attached. The member can be easily taken out from the guide member. The guide surface is
It is sufficient that at least the other end of the compression coil spring can be positioned within a plane substantially perpendicular to the axial center of the compression coil spring, and it does not necessarily have to have a perfect annular shape.

Further, since the engaging claw is engaged with the other end of the compression coil spring positioned by the guide member, the compression coil spring can be satisfactorily provided even if it is not necessarily engaged with the entire circumference of the other end. It may be compressed and only a single engaging pawl may be provided. For example, when a shaft-shaped member such as the shock absorber is inserted through the inside of the compression coil spring as the mounted member, the tip end has a substantially U shape and the compression coil is in the range of 180 ° or more. It suffices to provide only a single engaging pawl that is engaged with the other end of the spring. However, when the guide member is composed of a single member, a plurality of engaging claws are arranged so that they can approach and separate around the guide hole whose inner peripheral surface forms the guide surface, and the compression coil spring Alternatively, when the guide member is composed of a plurality of members, it is possible to dispose the engaging claws separately for all the members.

[0011]

As described above, according to the spring compression assembling apparatus of the present invention, the engaging claw is engaged with the other end of the compression coil spring for compression, so that the spring compression assembling apparatus is always provided regardless of the number of turns of the spring. The compression coil spring can be satisfactorily compressed, and the other end of the compression coil spring can be held by the second holding member by moving the engagement claw to the retracted position. Further, in the present invention, since the guide member for positioning the other end of the compression coil spring is provided, the posture of the compression coil spring is stable during compression or when the engaging claw is moved to the retracted position, and interference with other members and Satisfactory seating on the second holding member is avoided.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view of a spring compression assembling apparatus 10 according to an embodiment of the present invention.
FIG. 2 is a view showing a front-side portion and a rear-side portion of the II-II cross-sectional portion in FIG. The spring compression assembling apparatus 10 is for assembling the tapered compression coil spring 102 to the shock absorber 100 as the mounted member shown in FIG. 2, and the compression tube is attached to the cylinder tube 104 of the shock absorber 100. A lower support 106 that holds the lower end of the coil spring 102 is previously fixed as a first holding member. Also, a male screw 110 is formed at the tip of a piston rod 108 that is provided so as to be capable of being pushed into the cylinder tube 104, and an insulator 112 is provided in a state in which the compression coil spring 102 is compressed as shown in FIG.
After mounting the upper support 114 as the second holding member, the nut 116 is screwed into the male screw 110, so that the compression coil spring 102 is assembled to the shock absorber 100 in a compressed state. The upper support 114 abuts on the stepped portion of the piston rod 108 when the nut 116 is tightened, and is integrally fixed. The upper end of the compression coil spring 102 is shown in FIG. 7. So insulator 11
It is held by the upper support 114 via the two flange portions 118. A bound stopper 120 is previously fixed to the piston rod 108.

1 to 3, a spring compression assembling apparatus 10 includes two guide rails 1 on a main body frame 12.
Elevating member 1 arranged so as to be movable in the vertical direction via 4
Elevating device 18 as an axial moving means
It can be moved up and down by.
The lifting device 18 includes a lifting member 16 via a bracket 20.
Servo motor 2 for rotating the screw shaft 24 via a timing belt 26 and a screw shaft 24 screwed to the ball nut 22 disposed at the rear of the ball nut 22.
8 and the screw shaft 24 is rotationally driven in both forward and reverse directions by the servo motor 28, so that the lifting member 16
Is linearly moved in the vertical direction while being guided by the guide rails 14. The elevating member 16 is long in the vertical direction, and the nut runner 30 (see FIG. 6) and the like are arranged on the upper part thereof, while the supporting plate 32 is arranged on the lower part and a pair of slide members 34a and 34b are arranged. ing.

The support plate 32 is disposed on a guide rail 36 fixed to the elevating member 16 so as to be movable in the vertical direction. The support plate 32 is vertically moved by a driving means (not shown) and has a predetermined height. It is designed to be positioned at. A pair of slide members 34a, 34
b are spaced apart from each other in the left-right direction of FIG.
The guide rails 38a and 38b fixed to the guide rails 38a and 38b are guided in the left-right direction, and the left slide member 34a is reciprocated in the left-right direction by the air cylinder 40. Also, both slide members 34a, 34b
Racks 42a and 42b are fixedly installed in the respective left and right directions, and these racks 42a and 42b are
A pinion 44 rotatably arranged on the support plate 32.
When the left slide member 34a is reciprocated in the left-right direction by the air cylinder 40, the right slide member 34b is also reciprocated in the left-right direction symmetrically with respect to a predetermined assembly center O. Can be moved.

The pair of slide members 34a and 34b have guide members 50a and 50b and an engaging claw 52, respectively.
Although the air cylinders 54a, 54b for moving the a, 52b and the engaging claws 52a, 52b in the left-right direction are arranged, they are substantially symmetrically arranged and have substantially the same structure. Now, the left slide member 34a side will be specifically described, and the right slide member 34b side will not be described in detail. The guide member 50a is fixed substantially horizontally below the slide member 34a as shown in FIGS. 1 and 2 and FIG. 4 showing the longitudinal section of the slide member 34a. When 34a is advanced to the right in FIGS. 1 and 4, it is positioned at a guide position approaching the assembly center O, and when the slide member 34a is retracted to the left, it is separated from the assembly center O and compressed. Shock absorber 1 with coil spring 102 and upper support 114 assembled
00 is moved to the front side, that is, a retracted position that allows the downward movement in FIG. The guide position is
Stopper bolt 46 attached to the guide member 50a
Is defined by being brought into contact with the stopper 48 attached to the guide member 50b, and its guide position can be adjusted by loosening the lock nut and changing the tightening amount of the stopper bolt 46. Guide member 50a
A guide surface 56 having an arcuate shape in a plan view is provided at the tip end portion of the above, that is, the right end portion in FIGS. 1 and 4, and is disposed on the right slide member 34b in the state of being positioned at the guide position. With the guide surface 56 of the guide member 50b formed as described above, a guide hole having a substantially annular shape is formed, and the assembly center O
In the plane orthogonal to the axis of the shock absorber 100 positioned substantially concentric with the compression coil spring 102, in other words, in the plane substantially orthogonal to the axis of the compression coil spring 102 mounted on the shock absorber 100.
Position the upper end of 02. As is clear from FIG. 2, the guide surface 56 has a taper shape that widens toward the lower side, and opens at a larger taper angle toward the rear side, that is, the right side in FIG. 2, corresponding to the shape of the compression coil spring 102. ing. This taper angle is larger than the taper angle of the compression coil spring 102, so that the upper end of the compression coil spring 102 fits smoothly inside the guide surface 56, and the upper end opening side can be positioned with high accuracy.

The engaging claw 52a, as shown in FIG. 5 which is a sectional view taken along line VV of FIG.
The thin claw portion 6 is arranged in a guide groove 58 formed on the upper surface of a so as to be movable in the left-right direction, and has a tip portion, that is, a right end portion, which has an arc shape in a plan view.
0 is provided so as to incline so as to be higher toward the rear side, that is, the right side in FIG. 2, corresponding to the upper end shape of the compression coil spring 102. A first link 62 is rotatably connected to the engaging claw 52a around a substantially horizontal pin 64, and the other end of the first link 62 is connected to the second link 68 by a substantially horizontal pin 66. Are rotatably connected to each other, and the output rod 70 of the air cylinder 54a is connected to the other end of the second link 68 of the pin 72 which is substantially horizontal.
They are connected so that they can rotate relative to each other. The air cylinder 54a is disposed downward on a bracket 74 fixed to the slide member 34a so as to be rotatable around a substantially horizontal pin 76, and the second link 68 has a substantially horizontal pin 78 at an intermediate portion thereof. The bracket 74 is pivotally connected to the bracket 74. Then, when the output rod 70 of the air cylinder 54a is projected downward, the claw portion 60 moves from the guide surface 56 of the guide member 50a to the assembly center O side as shown in FIGS. 1, 4 and 5. When the output rod 70 is extended upward while being positioned at an engagement position where it engages with the upper end of the compression coil spring 102 and prevents passage, the tip of the claw portion 60 as shown in FIG. Is substantially at the same position as the guide surface 56, and is positioned at a retracted position that allows the upper end of the compression coil spring 102 to pass therethrough. Even when both the guide members 50a and 50b are located at the guide positions and the engagement claws 52a and 52b are located at the engagement positions, the piston rod 108 and the bound stopper 120 have the two engagement claws 52a and 52b. It can pass upward through the spaces between 52b. Further, when the engaging claw 52a is positioned at the engaging position, the pin 66 connecting the first link 62 and the second link 68 is substantially positioned on the line segment connecting the pins 64 and 78. Therefore, even if the air pressure of the air cylinder 54 decreases due to a failure of the air circuit or the like, the engaging claw 52a does not move to the retracted position side unless the second link 68 is rotated around the pin 78. In the present embodiment, the air cylinder 54a, the first link 62, the second link 68, etc. are used to move the claw moving means 80.
Is configured. The guide member 50a, the bracket 74, and the like are provided with a plurality of rollers 82 that engage with the upper surface and the lower surface of the engaging claws 52a and allow movement in the left-right direction while blocking movement in the up-down direction. There is.

The spring compression assembly device 10 is shown in FIG.
It is controlled by the controller 84 shown in FIG.
The controller 84 is configured to include a microcomputer that has a CPU, a RAM, and a ROM and uses the temporary storage function of the RAM to perform signal processing according to a program stored in the ROM in advance. The air cylinders 40, 5
The operating states of the servo motor 28 and the nut runner 30 are switched by controlling the operating states of the motors 4a and 54b or controlling the electric power. The controller 84 also carries in the shock absorber 100 to a mounting position in which the axis of the shock absorber 100 substantially vertically coincides with the mounting center O while holding the shock absorber 100 in a substantially vertical position, and carries out from the mounting position after the mounting. An operation panel 88 provided with various switches operated by an operator is connected to the control panel 86, and various switch signals are supplied. Although not shown, the operating state of each part, such as a signal indicating that the moving end has been reached, is supplied from a sensor or a limit switch.

FIG. 9 is a flow chart for explaining the operation of this embodiment. In step S1, the work transfer device 86 carries the shock absorber 100 to the assembly position,
In step S2, the compression coil spring 102 is loaded from above the shock absorber 100 by a worker's manual work or the like, and is placed on the lower support 106 in a natural state. When a predetermined switch of the operation panel 88 is operated after the compression coil spring 102 is turned on, the servo motor 28 is operated in step S3, and the elevating member 16 is lowered from the original position to a predetermined first lowering position. In this first lowered position, as shown in FIG. 2, the upper end portion of the compression coil spring 102 is located at the guide member 50.
The guide members 50a and 50b are preliminarily positioned at the guide positions, and the engaging claws 52a and 52b are preliminarily positioned at the engaging positions. There is. At this time, if the upper end of the compression coil spring 102 is fitted inside the guide surfaces 56 of the guide members 50a and 50b, the elevating member 16 is operated in step S4 by operating a predetermined switch of the operation panel 88 as it is. Second predetermined
Although it can be further lowered to the lowered position, when the upper end of the compression coil spring 102 is not fitted inside the guide surface 56 of the guide members 50a and 50b, it is manually moved to the inside of the guide surface 56 by an operator. After fitting, the switch may be operated to execute step S4.

The second lowered position is a position where the compression coil spring 102 is compressed and the upper end portion of the piston rod 108 of the shock absorber 100 projects upward from the guide members 50a and 50b as shown in FIG. Until that state, the compression coil spring 102 is compressed between the claw portions 60 of the engaging claws 52a and 52b and the lower support 106. In this case, since the engaging claws 52a and 52b are engaged with the upper end of the compression coil spring 102, the engaging claws 52a and 52b can be reliably engaged and compressed even when the number of turns of the spring is different. Also, the compression coil spring 102
Since the upper end of the compression coil spring 1 is positioned inside the guide surface 56 of the guide members 50a and 50b, the compression coil spring 1
02 is always compressed in a stable posture, and the insulator 1
There is no risk of pinching 12. Next step S5
Then, the insulator 112 and the upper support 114 are thrown in from above the piston rod 108 by a worker's manual work or the like. The flange portion 118 at the upper end of the insulator 112 is placed on the claw portions 60 of the engaging claws 52a and 52b, and the upper support 114 is locked to the stepped portion of the piston rod 108. Then, when a predetermined switch of the operation panel 88 is operated, the nut runner 30 is lowered in step S6, the male screw 110 of the piston rod 108 is screwed with the nut 116, and the upper support 11
4 is fixed to the piston rod 108. FIG. 6 shows this state.

In step S7, the servo motor 28 is actuated again, and the elevating member 16 is raised to a predetermined first raising position. The first raised position is a position where the flange portion 118 of the insulator 112 supported by the claw portions 60 of the engaging claws 52a and 52b substantially contacts the lower surface of the outer peripheral portion of the upper support 114. In step S8, the air cylinders 54a and 54b move the engaging claws 52a and 52b to the retracted position, whereby the compression coil spring 102 expands by its own spring force, and as shown in FIG. 114
And the flange portion 118 of the insulator 112 is sandwiched between and. Compression coil spring 102
Since the upper ends of the compression coil springs are positioned by the guide members 50a and 50b, there is no risk that the upper ends of the engaging claws 52a and 52b will be displaced due to friction between the engaging claws 52a and 52b when they move to the retracted position. It is well held by the upper support 114 via the flange portion 118. In particular, in step S7, the insulator 112
Since the compression coil spring 102 is previously expanded so that the flange portion 118 of the compression coil spring 102 is substantially in contact with the upper support 114, the expansion amount of the compression coil spring 102 in step S8 is slightly smaller than the wall thickness of the claw portion 60. With the large size, the positional displacement of the upper end can be prevented more favorably, and the upper support 1 can be connected via the flange 118.
The impact at the time of contacting 14 is alleviated.

In step S9, the air cylinder 40 separates the slide members 34a and 34b from each other to move the guide members 50a and 50b to the retracted position.
In step S10, the shock absorber 100 to which the compression coil spring 102, the insulator 112, and the upper support 114 are attached is moved to the work transfer device 8
6, the sheet is carried out from the assembly position to the front side of the apparatus, that is, the lower side in FIG. In step S11, the lifting / lowering member 16 is raised to its original position by the servo motor 28, and the guide members 50a, 50a,
50b is moved to the guide position, and the air cylinder 54
The engaging claws 52a and 52b are moved to the engaging position by a and 54b. As a result, one shock absorber 1
The work of assembling the compression coil spring 102 and the like with respect to 00 is completed.

In the spring compression assembling apparatus 10 of this embodiment, since the engaging claws 52a and 52b are engaged with the upper ends of the compression coil springs 102 to compress them, the number of windings of the springs is reduced. Regardless, the compression coil spring 102 can always be favorably compressed, and the upper ends of the compression coil spring 102 are moved to the upper support 11 by moving the engaging claws 52a and 52b to the retracted position.
4 can be held. Further, since the upper end of the compression coil spring 102 is positioned by the guide members 50a and 50b, the posture of the compression coil spring 102 is stable during compression and the engagement claws 52a and 52b are moved to the retracted position, and the insulator 112 is prevented from biting. It is possible to satisfactorily avoid jamming and poor seating on the upper support 114.

Further, in this embodiment, a pair of guide members 50 is used.
a and 50b are provided, and a guide position for positioning the upper end of the compression coil spring 102 and a retracted position for allowing the shock absorber 100, to which the compression coil spring 102 and the upper support 114 are assembled, to be taken out downward in FIG. The shock absorber 100 having the upper support 114 having a larger diameter than the upper end of the compression coil spring 102 and the like mounted thereon can be easily carried out from the mounting position.

Although one embodiment of the present invention has been described in detail with reference to the drawings, the present invention can be implemented in other modes. For example, in the above embodiment, the shock absorber 1
The spring compression assembling device 10 in which the compression coil springs 102 and the like are mounted on the outer peripheral side of 00 has been described. The present invention can be similarly applied to a case where a compression coil spring is held between a pair of holding members that are arranged as described above.

In the above embodiment, the pair of guide members 5
Although 0a and 50b are provided, the other end of the compression coil spring may be positioned by one or three or more guide members depending on the conditions. The same applies to the engaging claws.

In the above embodiment, the pair of guide members 5
0a and 50b are air cylinders 40 and racks 42a and 42.
Although it can be moved by b and the pinion 44, various other guide member moving means such as moving by using a screw shaft rotated by a motor can be adopted. Also for the engaging claws 52a and 52b, various other claw moving means such as directly connecting to the output rod of the air cylinder to reciprocate can be adopted.

Further, in the above embodiment, a pair of engaging claws 52 is provided.
a and 52b are arranged on the guide members 50a and 50b,
When the guide members 50a and 50b are moved to the guide position and the retracted position, the engaging claws 52a and 52b are also moved together. However, a holding member for holding the engaging claws 52a and 52b and the claw moving means 80 is not provided. , Guide members 50a, 50
It may be arranged on the support plate 32 separately from the slide members 34a, 34b on which the b is arranged.

In addition, the guide members 50a, 5 of the above embodiment
0b had a tapered guide surface 56, but when a cylindrical compression coil spring is mounted,
It is also possible to position by providing a cylindrical guide surface. However, in fitting the end of the compression coil spring into the inside of the guide surface, the guide surface is preferably tapered.

Further, in the above embodiment, the flange portion 118 of the insulator 112 is raised to the first raised position where it is substantially in contact with the upper support 114 in step S7, and then the engaging claws 52a and 52b are moved to the retracted position in step S8. However, when the gap between the flange portion 118 and the upper support 114 is relatively small, step S8 may be immediately executed after step S6.

In the above embodiment, the guide members 50a,
Although 50b is lowered to compress the compression coil spring 102, the shock absorber 100 may be raised. It is also possible to relatively move in the horizontal direction to compress the compression coil spring.

In the above embodiment, the case where the operator manually inserts the compression coil spring 102, the insulator 112, and the upper support 114 has been described, but it may be automatically introduced by a robot or the like. it can.

In the above embodiment, the upper support 11
Although the nut 116 for fixing 4 to the piston rod 108 is designed to be automatically tightened by the nut runner 30, it may be manually performed by an operator. The loading of the shock absorber 100 to the assembling position and the unloading after the assembling may be manually performed by the worker.

In the above embodiment, the upper support 114 as the second holding member is fixed to the piston rod 108 by the nut 116.
The means for attaching the holding member to the mounted member may be other fixing means such as bolts, caulking, and welding.

Although not illustrated one by one, the present invention can be implemented in various modified and improved modes based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a spring compression assembly device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a front side portion in a II-II cross section of FIG.

FIG. 3 is a sectional view showing a rear side portion in a II-II section of FIG.

4 is a longitudinal sectional view of one slide member provided with a guide member and an engaging claw in the spring compression assembly apparatus of FIG.

5 is a diagram showing a VV cross section in FIG. 4;

FIG. 6 is a cross-sectional view showing a state in which the compression coil spring is compressed by the engaging claws and the upper support as the second holding member is attached in the spring compression assembly apparatus of FIG. 1;

7 is a cross-sectional view showing a state in which the engagement claw is moved to the retracted position and the compression coil spring is held by the upper support in the spring compression assembly apparatus of FIG.

FIG. 8 is a block diagram illustrating a control system of the spring compression assembling device in FIG. 1.

9 is a flow chart for explaining the operation of the spring compression assembly apparatus of FIG.

[Explanation of symbols]

 10: Spring compression assembling device 18: Lifting device (axial direction moving means) 50a, 50b: Guide members 52a, 52b: Engaging claws 56: Guide surface 80: Claw moving means 100: Shock absorber (attached member) 102: Compression coil spring 106: Lower support (first holding member) 114: Upper support (second holding member)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroyasu Watanabe 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (72) Inventor Nobufumi Kobayashi, 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd.

Claims (1)

[Claims] 1. A first holding member for holding one end of a compression coil spring, and a second holding member for holding the other end of the compression coil spring attached to a member to be attached, wherein the compression coil spring is attached to the first holding member. 1 is a spring compression assembling device that compresses between the holding member and the holding member, which engages with the outer peripheral portion of the other end of the compression coil spring that is naturally arranged on the mounted member, A guide member having a guide surface that positions in a plane substantially perpendicular to the axis and allows the other end to pass in the axial direction of the compression coil spring; and a guide member in the axial direction with respect to the guide member. An engaging position that is relatively immovable and that engages with the other end of the compression coil spring positioned by the guide surface and prevents the other end from passing through the guide member. An engaging pawl movably arranged to a retracted position that allows the other end of the compression coil spring to pass through the guide member, and the engaging pawl to the engaging position and the retracted position. The pawl moving means for moving, the guide member and the mounted member are relatively moved in a direction substantially the same as the axial direction of the compression coil spring, and the compression coil is provided between the first holding member and the engaging pawl. A spring compression assembly device, comprising: an axial movement means for compressing the spring.