JP2012187677A - Assembling tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembling tool capable of quickly coping with the change of a production plan and improving versatility of equipment.SOLUTION: While being mounted on a spindle of a machining center (machine tool), this assembling tool 1 is configured so that a clamp member 3 is subjected to a clamping or unclamping operation in conjunction with the rotation of the spindle. Accordingly, when a production plan is changed, it can cope with it by merely mounting the assembling tool 1 corresponding to an assembly component to the spindle, and it can thereby quickly cope with it. Further, equipment has versatility because the equipment is not dedicated to assembly.

Description

  The present invention relates to an assembly tool used for assembling parts.

  As a means (assembly tool) for clamping and unclamping a workpiece (part), for example, a clamping device described in Patent Document 1 is known. By the way, in the automatic assembly process of an automobile production line, in many cases, an assembly tool is prepared for each target vehicle type, that is, a part to be assembled, and in general, the assembly tool is diverted to another vehicle type. I can't. Therefore, conventionally, when there is a sudden change in the production plan (switching of the target vehicle type), it has been necessary to change the assembly tool or the equipment itself. In this case, many man-hours were required including the relocation and adjustment of equipment, and it was not possible to respond quickly. Therefore, it has been studied to share parts and mounting positions among vehicle types. However, since the equipment is exclusively used for assembly, it is poor in versatility and causes an increase in equipment cost.

Japanese Patent Laid-Open No. 2004-223661

  Therefore, the present invention has been made in view of the above circumstances, and it is an object to provide an assembly tool that can quickly respond to a change in a production plan and can improve the versatility of equipment. It was made.

  In order to solve the above problems, an assembling tool of the present invention is an assembling tool comprising at least one clamping member for gripping an assembling part and an elastic member for applying a clamping force of the clamping member. And an interlocking mechanism that is mounted on a spindle of a machine tool and that clamps or unclamps the clamp member in conjunction with the rotation of the spindle.

(Aspect of the Invention)
In the following, aspects of the invention that is recognized as being capable of being claimed in the present application (hereinafter referred to as claimable invention) will be exemplified, and each exemplified aspect will be described. Here, as in the claims, each aspect is divided into paragraphs, numbers are assigned to the respective paragraphs, and the descriptions of other paragraphs are cited as necessary. This is for the purpose of facilitating the understanding of the claimable invention, and is not intended to limit the combination of the constituent elements constituting the claimable invention to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description accompanying each section, the description of the embodiment, etc., and as long as the interpretation is followed, another aspect is added to the aspect of each section. Moreover, the aspect which deleted the component from the aspect of each term can also be one aspect of the claimable invention.
In the following items, each of items (1) to (3), (5), and (6) corresponds to each of claims 1 to 5 described in the claims.

(1) An assembly tool including at least one clamp member that grips an assembly component and an elastic member that imparts a clamping force of the clamp member. The assembly tool is attached to a spindle of a machine tool and interlocks with the rotation of the spindle. An assembling tool comprising an interlocking mechanism for clamping or unclamping the clamp member.
According to the assembly tool described in this section, when the production plan is changed, only the clamp member is replaced, or the corresponding assembly tool is replaced with the machine tool in the same manner as the normal tool replacement of the machine tool. This can be done simply by attaching to the main shaft. Therefore, a quick response is possible, and a wide variety of assembly parts can be supported. In addition, since the clamp member is driven using the rotation of the spindle of the machine tool, it is not necessary to supply hydraulic pressure to the assembly tool as a power source or to provide an electric motor for the assembly tool, and the assembly tool is simplified. It can be reduced in size, weight, and cost.

(2) A base shaft mounted on the main shaft of the machine tool, a barrel portion provided with a clamp member and supported by the base shaft so as to be relatively rotatable around the rotation axis of the main shaft, and rotation of the barrel portion with respect to the head of the machine tool And an anti-rotation means for preventing rotation around the shaft, wherein the interlocking mechanism converts relative rotation between the base shaft and the body portion into a clamping or unclamping operation of the clamp member. tool.
According to the assembling tool described in this section, since the body portion is prevented from rotating around the rotation axis by the rotation prevention means, the base shaft is rotated by rotating the main shaft and the base shaft around the rotation axis. Rotates relative to the part. Then, the relative rotation of the base shaft with respect to the body portion is converted into a clamping or unclamping operation of the clamp member by the interlocking mechanism.
In the aspect of this section, the base shaft has the same shank portion as that of a normal tool holder. As the shape of the shank portion, a standardized taper shape (for example, Jacobs taper, Morse taper, etc.) is adopted. Thereby, the assembly tool can be mounted in the tool holder mounting hole of the main spindle of a machine tool such as a machining center in the same manner as a normal tool holder.

(3) The interlocking mechanism is provided with clamp guide means for guiding the clamp member in a direction perpendicular to the rotation axis, and coaxially disposed with respect to the rotation axis, and is allowed to move relative to the base axis in the axial direction. A shaft portion in which relative rotation around the rotation shaft is prevented, a nut member fixed to the body portion and screwed with a screw portion formed on the outer peripheral surface of the shaft portion, and a tip end of the shaft portion are connected to the bottom portion. The combination of (1) and (2), comprising: a conical member; and a driven member that moves in unison with the clamp member by contacting the conical surface of the conical member by the elastic force of the elastic member Attached tool.
In the following description of the assembling tool described in this section, of the movement of the shaft portion or the conical member in the axial direction with respect to the base shaft, each of the end portions of the base shaft (the portion where the pull stud is normally attached in the tool holder) The movement to the side is defined as the backward movement, and the movement toward the opposite side is defined as the forward movement.
Further, as a target assembly part, a connecting rod cap of an internal combustion engine will be exemplified. In this case, the assembly tool has a fixed pin arranged in parallel with the rotation axis, and a clamp member that can approach (clamp operation) and release from the fixed pin (unclamp operation). The cap can be held (clamped) by fitting one of the bolt insertion holes and pressing the end face of the cap with a predetermined clamping force (elastic force of the elastic member) by the clamp member in this state. And
In the state immediately after the assembly tool described in this section is mounted on the spindle of the machine tool, that is, in the initial state of the assembly tool, the shaft portion is positioned at the retracted end position (clamp position) with respect to the base shaft. . In this initial state, the driven member is brought into contact with the top side of the conical surface of the conical member, so that the clamp member is positioned closest to the fixing pin.
When the main shaft is rotated forward in this state, the base shaft rotates integrally with the main shaft. Then, since the relative rotation around the rotation axis with respect to the base shaft is prevented and the screw portion is screwed into the nut member fixed to the trunk portion, the shaft portion moves forward while rotating normally around the rotation shaft. As the shaft portion advances, the conical member advances, and as the conical member advances, the outer diameter of the portion of the conical member with which the driven member abuts is increased. Accordingly, the driven member moves outward (in a direction away from the rotation shaft) while compressing an elastic member (for example, a compression coil spring), and as a result, the clamp member also in a direction away from the fixing pin. Move (unclamp operation). Here, the elastic energy accumulated in the elastic member by being compressed is used as a clamping force.
The spindle stops when it rotates forward by the commanded rotation speed (rotation speed set in the NC controller), and when the rotation of the main spindle stops, the shaft portion moves to the forward end position (unclamped). Position). Next, in this state, one bolt insertion hole of the cap (assembly part) is fitted to the fixing pin. In this state, the clamp member is opposed to the end surface of the cap at a predetermined interval. In this state, when the main shaft is rotated in the reverse direction, the shaft portion moves backward while rotating around the rotation axis. The conical member retreats with the retraction of the shaft portion, and the outer diameter of the portion of the conical member with which the driven member abuts is reduced with the retraction of the conical member. Thereby, since the driven member is pressed against the conical member by the elastic force of the elastic member that generates the clamping force, the driven member moves inward (in the direction approaching the rotation axis), and the clamp member integrated with the driven member is a fixed pin. Moves in a direction approaching (clamping operation). Thereby, the end surface of the cap is pressed by the clamp member, and the assembly tool can grip (clamp) the cap.
The conical member is desirably connected to the shaft portion so as to be relatively rotatable around the rotation axis using a bearing or the like.

(4) An anti-rotation mechanism that prevents relative rotation of the base shaft and the shaft portion around the rotation axis, and the anti-rotation mechanism is released when the shaft portion tries to move beyond the limit in the axial direction relative to the base shaft. And a release mechanism that allows relative rotation of the base shaft and the shaft portion around the rotation axis. The assembly tool according to (2) or (3).
According to the assembly tool described in this section, when the shaft portion tries to move beyond the limit in the axial direction with respect to the base shaft, the detent mechanism is released by the release means, and the rotation between the base shaft and the shaft portion is performed. Since the relative rotation around the axis is allowed, it is possible to prevent the assembly tool from being damaged due to an excessive force applied to the interlocking mechanism due to the runover of the shaft portion and the conical member.
In this aspect, for example, the rotation preventing mechanism is formed on the inner peripheral surface of the shaft insertion hole of the base shaft and extends in the axial direction, and is projected on the outer peripheral surface of the shaft portion and can slide in the key groove. The release mechanism is configured to engage the key material and the key groove only while the relative position in the axial direction relative to the base shaft of the shaft portion is within a predetermined range. Thus, it can be set as the structure which sets the length of the axial direction of a keyway.

(5) The detent means is constituted by a positioning block provided at the shaft head, and a positioning pin provided in a tool holder having a fluid receiving means and fitted in a fitting hole of the positioning block. The assembly tool of (2).
Since the existing tool holder (tool holder with oil hole) having the fluid receiving means has a configuration corresponding to the base shaft, the body part, and the rotation preventing means in the assembly tool, the existing tool holder with oil hole is used. By designing and manufacturing the assembly tool on the basis, the design man-hour can be shortened and the manufacturing cost can be kept low.

(6) The assembly tool according to any one of (1) to (5), wherein the assembly tool is accommodated in a tool holder housing shelf of a machine tool including an automatic tool changer so that automatic tool change is possible.
According to the assembly tool described in this section, each assembly tool corresponding to each assembly part is accommodated in a tool holder accommodation shelf (tool magazine) of a machine tool equipped with an automatic tool changer (ATC). Therefore, when a sudden change occurs in the production plan, the required assembly tool can be mounted on the spindle of the machine tool simply by specifying the required assembly tool and performing a normal automatic tool change. Can do. Therefore, an extremely quick response is possible. Moreover, since it is not necessary to newly secure a place (shelf) for storing the assembly tool corresponding to each assembly component, it is possible to save the equipment.

  ADVANTAGE OF THE INVENTION According to this invention, the assembly tool which can respond rapidly to the change of a production plan and can improve the versatility of an installation can be provided.

It is the figure which represented a part of assembly tool of this embodiment with the section by a uniaxial plane. It is the figure which represented a part of assembly tool of this embodiment by the cross section by the axial plane orthogonal to the axial plane in FIG. It is a figure related to FIG. 1, Comprising: It is a figure which shows the principal part in the state of an unclamp. It is the figure which represented a part of assembly | attachment tool of other embodiment with the cross section by a uniaxial plane.

An embodiment of the present invention will be described with reference to the accompanying drawings.
Hereinafter, the assembly tool 1 for which the cap 2 (assembly part) of the connecting rod of the internal combustion engine is to be assembled will be described. In the following description, for the sake of convenience, the right direction in FIGS. 1 and 2 is defined as the front and the left direction as the rear, respectively. That is, the rightward movement in FIGS. 1 and 2 is forward movement, and the leftward movement is backward movement. Moreover, although the rotating shaft L and an axis are substantially the same, they are used properly as needed.

  The assembly tool 1 of the present embodiment is used by being mounted on a main shaft (hereinafter simply referred to as a main shaft) of a horizontal machining center (machine tool), and the clamp member 3 is clamped or unclamped in conjunction with the rotation of the main shaft. It is configured as follows. As shown in FIG. 1 and FIG. 2, the assembly tool 1 can be relatively rotated about the rotation axis L by the base shaft 5 on which the shank portion 4 is mounted on the main shaft and the pair of bearings 6 and 7. It is comprised based on the existing tool holder (tool holder with an oil hole) provided with the case (trunk | drum) 8 supported by 1 and the fluid receiving means 9.

  The shank portion 4 described above is formed in the rear portion of the base shaft 5 (the left portion in FIGS. 1 and 2). The shank portion 4 is formed in a standardized taper shape (for example, a Jacobs taper, a Morse taper, etc.) adapted to a holder mounting hole formed in the end surface of the main shaft, and a pull stud bolt is provided at the rear end portion thereof. Is provided with a screw hole 10 for mounting. In addition, a holder grip portion 11 that is gripped by an arm of an ATC (automatic tool changer) at the time of automatic tool change is provided at an intermediate portion of the base shaft 5. Further, the inner peripheral surface of each inner race of the pair of bearings 6 and 7 (radial ball bearings) is fitted to the outer peripheral surface 5a of the front side portion (the right side portion in FIGS. 1 and 2) of the base shaft 5. Yes. The rear end surface of the inner race of the bearing 6 is abutted against an annular abutting surface 5 b formed on the base shaft 5, while the front end surface of the inner race of the bearing 7 is the outer periphery of the front end portion of the base shaft 5. It is pressed in the axial direction (left direction in FIGS. 1 and 2) by a bearing retainer 12 screwed into a threaded portion 5c formed on the surface.

  The case 8 is divided into a case 8A arranged on the rear side and a case 8B arranged on the front side. The case 8B is formed in a substantially cylindrical shape, and a small diameter hole 23 on the rear side and a large diameter hole 24 on the front side are provided coaxially with the rotation axis L, respectively. The case 8A is formed in a substantially cylindrical shape, and includes an inner peripheral surface 8a into which the outer peripheral surfaces of the outer races of the pair of bearings 6 and 7 are fitted, and an accommodating portion 8b that accommodates the bearing retainer 12. ing. The case 8A is provided with the fluid receiving means 9 described above, and the positioning pin 9a of the fluid receiving means 9 is fitted in the fitting hole of the positioning block provided at the head of the machining center. Accordingly, a rotation preventing means for preventing the rotation of the case 8 (8A) around the rotation axis with respect to the shaft head is configured. In addition, as the fluid receiving means 9 as the rotation preventing means, the existing fluid receiving means of the tool holder with an oil hole is used as it is. Therefore, detailed description of the fluid receiving transmission means is omitted here.

  The assembly tool 1 has a shaft portion 13 (interlocking mechanism) that is disposed coaxially with the rotation axis L and the base shaft 5. The shaft portion 13 is slidably supported by an inner peripheral surface of a hole 14 formed in the base shaft 5 at a rear side portion. Further, a parallel pin 15 (key material) is penetrated and fixed to the intermediate portion in the front-rear direction of the shaft portion 13. The parallel pins 15 are arranged so as to be orthogonal to the axis of the base shaft 5, and both end portions protrude from the outer peripheral surface of the shaft portion 13. Then, both end portions of the parallel pin 15 are engaged with the respective guide grooves 17 provided on the inner peripheral surface of the shaft insertion hole 16 of the base shaft 5. Accordingly, the shaft portion 13 is allowed to move relative to the base shaft 5 in the axial direction, but is prevented from rotating relative to the rotation axis L.

  A screw portion 18 is formed on the outer peripheral surface of the front portion of the shaft portion 13. The screw portion 18 is screwed into a screw hole 20 of a nut member 19 (interlocking mechanism) fixed to the center of the front end portion of the case 8A. Accordingly, the shank portion 4 of the base shaft 5 is mounted on the spindle of the machining center, and the positioning pin 9a of the fluid receiving means 9 is fitted in the fitting hole of the positioning block of the shaft head, that is, the case 8 is on the shaft head. On the other hand, by rotating the main shaft while being prevented from rotating around the rotation axis L, the base shaft 5 rotates around the rotation axis L, that is, relative to the case 8 around the rotation axis L. And since the axial part 13 is screwed together by the nut member 19 in which the thread part 18 was fixed to case 8A, the relative rotation with respect to the base shaft 5 is blocked, and relative movement in the axial direction is allowed. It moves forward or backward in conjunction with the rotation of the spindle.

  When the shaft portion 13 tries to move beyond the limit in the axial direction with respect to the base shaft 5, the engagement between the parallel pin 15 and each guide groove 17 is released, and the base shaft 5, the shaft portion 13, The relative rotation around the rotation axis L is allowed. Thereby, it is possible to prevent the assembly tool 1 from being damaged due to an excessive force applied to the interlocking mechanism by the run-over of the shaft portion 13 and the conical member 21 described later.

  The bottom portion (the left end portion in FIGS. 1 and 2) of the conical member 21 (interlocking mechanism) disposed coaxially with the shaft portion 13 is connected to the front end portion of the shaft portion 13. The conical member 21 can rotate relative to the shaft portion 13 around the rotation axis L via the bearing 22. As shown in FIG. 2, the conical member 21 has a part of the base 21b formed in a cylindrical shape, and the cylindrical outer peripheral surface of the base 21b can be slid by the small diameter hole 23 of the case 8B. It is supported by. The front side portion of the conical member 21 protrudes into the large-diameter hole 24 of the case B.

  As shown in FIG. 1, on one side of the front end surface of the case 8B (upper side when the assembly tool 1 is mounted on the main shaft), one of the two bolt insertion holes 2a of the cap 2 is inserted. A fixing pin 25 to be fitted in the hole 2a is erected in parallel with the rotation axis L. Further, on the other side of the front end surface of the case 8B (lower side when the assembly tool 1 is mounted on the main shaft), a clamp arm 3a extending in the radial direction of the case 8B (vertical direction in FIG. 1), The above-described clamp member 3 is provided which includes a clamp claw 3b that is fixed to one end portion (lower end portion in FIG. 1) of the clamp arm 3a by a bolt 27 and arranged to face the fixing pin 25. ing.

  A driven member 28 (interlocking mechanism) accommodated in the large-diameter hole 24 of the case 8B is fixed to the other end (upper end in FIG. 1) of the clamp arm 3a by a bolt 29. The driven member 28 has a contact surface 28a that is inclined so as to be slidably line-contacted with the conical surface 21a of the conical member 21, and the back surface 28b is accommodated in the case 8B and is blocked. A pressing member 30 formed in a shape is fixed by a bolt 31. The pressing member 30 is smoothly moved in the radial direction of the case 8B (the direction perpendicular to the rotation axis L and in the vertical direction in FIG. 1) by guide means (clamp guide means) constituted by the guide 32 and the rail 33. It is guided to be movable.

  A compression coil spring 34 (elastic member) is accommodated in the counterbore hole 30a through which the bolt 31 of the pressing member 30 is inserted. The outer end (lower side in FIG. 1) of the compression coil spring 34 protrudes from the outer end surface of the pressing member 30 and is in contact with the inner surface of the plate 35. The driven member 28 is urged toward the conical member 21 by the spring force (elastic force) of the compression coil spring 34, so that the contact surface 28a of the driven member 28 is in line contact with the conical surface 21a. It is configured. As will be described later, the spring force (elastic force) obtained by compressing the compression coil spring 34 is also used for the clamping force of the clamp member 3.

Next, the operation of this embodiment will be described.
In the following description, the positive rotation is the rotation in the same direction around the rotation axis L with respect to the normal rotation commanded by the NC control device (in the clockwise direction around the rotation axis L as seen from the shaft head). The reverse rotation is a rotation in the opposite direction to the normal rotation.

  First, the assembly tool 1 corresponding to the assembly component (cap 2 assembled to the connecting rod body 26 in this embodiment) is mounted on the spindle of the machining center (machine tool). Here, it is required that the assembly tool 1 corresponding to each assembly part is stored in advance in a tool holder storage shelf (tool magazine) of a machining center provided with an automatic tool changer (ATC). By specifying the assembly tool 1 and executing normal automatic tool change, the required assembly tool 1 can be mounted on the spindle. In the state immediately after the assembly tool 1 is mounted on the main shaft, that is, in the initial state of the assembly tool 1, the shaft portion 13 is positioned at the retracted end position with respect to the base shaft 5, as shown in FIG. . In this initial state, the driven member 28 is in contact with the top side of the conical surface 21 a of the conical member 21, so that the clamp member 3 is closest to the fixing pin 25, in other words, the fixing pin 25. It is located at a close position.

  When the main shaft is rotated forward from this state (the initial state of the assembly tool 1), the base shaft 5 rotates positively integrally with the main shaft. Then, the shaft portion 13 is prevented from relative rotation around the rotation axis L with respect to the base shaft 5 and the screw portion 18 is screwed into the nut member 19 fixed to the case 8A. While moving forward. As the conical member 21 advances, the conical member 21 advances, and as the conical member 21 advances, the outer diameter of the conical member 21 at the portion where the driven member 28 abuts is increased. As a result, the driven member 28 slides the contact surface 28a to the conical surface 21a of the conical member 21, and compresses the compression coil spring 34 (elastic member) to the outside (downward direction in FIG. 1). As a result, the clamp member 3 moves in the direction away from the fixing pin 25 (unclamping operation). Here, the spring force (elastic force) accumulated in the compression coil spring 34 by being compressed is used as a clamping force.

  The main shaft stops when it rotates forward by the commanded number of revolutions (the number of revolutions set in the NC controller). In a state where the forward rotation of the main shaft is stopped, the shaft portion 13 is positioned at the forward end position (unclamp position) with respect to the base shaft 5. FIG. 3 shows the position of the clamp member 3 in this state, that is, the state where the shaft portion 13 is located at the forward end position. Next, as shown in FIG. 3, one bolt insertion hole 2 a of the cap 2 (assembled part) is fitted to the fixing pin 25. In this state, the clamp claw 3 b is opposed to the end surface of the cap 2 with a predetermined interval.

  Next, when the main shaft is reversely rotated, the base shaft 5 is reversely rotated integrally with the main shaft. Then, the shaft portion 13 is prevented from relative rotation around the rotation axis L with respect to the base shaft 5 and the screw portion 18 is screwed into the nut member 19 fixed to the case 8A. While retreating. The conical member 21 retreats with the retraction of the shaft portion 13, and the outer diameter of the conical member 21 at the portion with which the driven member 28 abuts is reduced with the retraction of the conical member 21. As a result, the driven member 28 moves inward (upward in FIG. 1) so that the contact surface 28a slides on the conical surface 21a of the conical member 21, and as a result, the clamp member 3 is fixed to the fixing pin 25. Moves in a direction approaching (clamping operation).

  The main shaft stops when it is reversely rotated by the commanded rotational speed (the rotational speed set in the NC controller), but at a timing before the reverse rotation of the main spindle stops, the clamp claw 3b is attached to the cap 2 (See FIG. 1). Thereby, the assembling tool 1 is fixed with the fixed pin 25 and the clamp member 3 (clamp claw 3b) with a predetermined clamping force, in other words, with the spring force (elastic force) of the compression coil spring 34 (elastic member). 2 can be gripped. Then, the machining center moves each axis (X axis, Y axis, and Z axis) to the position commanded by the NC control device. Accordingly, as shown in FIG. 1, the cap gripped by the assembly tool 1 can be assembled to the connecting rod body 26 gripped by the jig on the machine table of the machining center.

This embodiment has the following effects.
According to the present embodiment, when the production plan is changed, only the clamp member 3 is replaced, or in the same manner as a normal tool replacement of a machining center (machine tool), an assembly part (in this embodiment, The assembly tool 1 corresponding to the connecting rod cap 2) can be dealt with by simply attaching it to the spindle of the machining center.
Therefore, a quick response is possible, and a wide variety of assembly parts can be supported. Further, since the clamping member 3 is driven by utilizing the rotation of the spindle of the machining center, it is not necessary to supply hydraulic pressure to the assembly tool 1 as a power source or to provide an electric motor for the assembly tool 1. Simplification, size reduction, weight reduction, and cost reduction can be achieved.
Moreover, since the machining center can be used as an original processing machine as necessary, the versatility of equipment can be improved.

In addition, embodiment is not limited above, For example, it can comprise as follows.
As shown in FIG. 4, instead of the fixing pin 25, the clamping member 3 and accompanying elements (the driven member 28, the pressing member 30, etc.) are arranged symmetrically in the vertical direction in FIG. 4 to constitute the assembly tool 1. Can do. In this case, the pair of clamp claws 3b can be separated from each other (unclamping operation) and approaching (clamping operation) in conjunction with forward and reverse rotations of the main shaft.

DESCRIPTION OF SYMBOLS 1 Assembling tool, 2 Cap (assembly part), 3 Clamp member, 5 Basic shaft, 8 Case (torso part), 9 Fluid receiving means (rotation prevention means), 9a Positioning pin (rotation prevention means), 13 Shaft part (Linked mechanism), 19 nut member (linked mechanism), 21 conical member (linked mechanism), 28 driven member (linked mechanism), 32 guide (clamp guide means), 33 rail (clamp guide means), 34 compression coil spring ( Elastic member)

Claims (5)

An assembly tool comprising: at least one clamp member that grips an assembly component; and an elastic member that applies a clamping force of the clamp member,
An assembling tool comprising an interlocking mechanism that is attached to a spindle of a machine tool and that clamps or unclamps the clamp member in conjunction with rotation of the spindle. A base shaft mounted on a main shaft of a machine tool, a body portion provided with the clamp member and supported by the base shaft so as to be relatively rotatable around a rotation axis of the main shaft, and a head portion of the body portion of the machine tool Rotation prevention means for preventing rotation about the rotation axis with respect to
The interlocking mechanism is
The assembly tool according to claim 1, wherein relative rotation between the base shaft and the body portion is converted into a clamping or unclamping operation of the clamp member. The interlocking mechanism is
Clamp guide means for guiding the clamp member in a direction perpendicular to the rotation axis;
A shaft portion that is arranged coaxially with respect to the rotating shaft and is allowed to move in the axial direction relative to the base shaft and is prevented from rotating relative to the rotating shaft;
A nut member fixed to the body portion and screwed with a screw portion formed on the outer peripheral surface of the shaft portion;
A conical member to which the tip of the shaft is connected to the bottom;
A driven member that is brought into contact with the conical surface of the conical member by the elastic force of the elastic member and moves integrally with the clamp member;
The assembly tool according to claim 1, wherein the assembly tool is provided. The detent means is
A positioning block provided on the shaft head;
A positioning pin provided in a tool holder having a fluid receiving means and fitted in a fitting hole of the positioning block;
The assembly tool according to claim 2, comprising: The assembly tool according to any one of claims 1 to 4, wherein the assembly tool is housed in a tool holder housing shelf of the machine tool including an automatic tool changer so as to be capable of automatic tool change.

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