CN108941299B

CN108941299B - Installation mechanism of machining tool and forming machine comprising same

Info

Publication number: CN108941299B
Application number: CN201710378894.1A
Authority: CN
Inventors: 藤本悟
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2017-05-25
Filing date: 2017-05-25
Publication date: 2020-05-19
Anticipated expiration: 2037-05-25
Also published as: TWI626023B; TW201900062A; CN108941299A

Abstract

The invention provides an installation mechanism of a processing tool and a forming machine comprising the installation mechanism, which can easily perform micro-adjustment of the relative position of an installation part and/or the processing tool relative to a movable part. The mounting mechanism for a machining tool includes: a movable section (10) that moves along an axis (X1); a mounting part (20) to which a processing tool (130, 140) is mounted and which is assembled to the movable part (10); an urging member (40) that urges the mounting portion (20) along an axis (X1); and a rotating tool (30) that directly or indirectly pushes the attachment section (20) in a direction opposite to the biasing force of the biasing member (40) based on rotation about the rotation Axis (AX).

Description

Installation mechanism of machining tool and forming machine comprising same

Technical Field

The invention relates to an installation mechanism of a machining tool and a forming machine comprising the same.

Background

Patent document 1 discloses a molding machine for a stop pawl member of a slider for a slide fastener.

Documents of the prior art

Patent document

Patent document 1: international publication No. 2015/128996

Disclosure of Invention

The machining tool called a punch disclosed in patent document 1 can be connected to a movable portion that moves in accordance with power from a drive source. In order to perform high-precision machining by a machining tool, it is required to position the machining tool with respect to the movable portion. For example, when the machining tool is positioned at a position deviated from a desired position with respect to the movable portion, the machining accuracy of the machining tool may be deteriorated. Therefore, after the machining tool is assembled to the movable portion, it is required to finely adjust the relative position of the machining tool with respect to the movable portion.

The fine adjustment can be achieved by adjusting the position of a bolt that passes through a long hole provided at the attachment end of the processing tool and is screwed into the movable portion, on the long hole. However, in this case, the fine adjustment largely depends on the skill level of the operator. Further, it is necessary to rotate the bolt while supporting the machining tool, which requires a lot of labor. The same problem is also involved in a position adjustment method according to the thickness or number of metal plates called spacers.

The inventors of the present application have found a new problem to facilitate fine adjustment of the relative position of the processing tool with respect to the movable portion.

An attachment mechanism for a machining tool according to an aspect of the present invention includes:

a movable portion that moves along an axis;

a mounting portion to which a machining tool is mounted, the mounting portion being assembled to the movable portion so as to be displaceable in a direction along the axis;

a biasing member that biases the mounting portion along the axis; and

and a rotating tool that directly or indirectly pushes the mounting portion in a direction opposite to the biasing force of the biasing member based on rotation about a rotation axis.

In some embodiments, the rotary tool has an urging portion for urging the mounting portion, and the urging portion is provided eccentrically with respect to the rotary shaft.

In some embodiments, the pushing portion has an outer peripheral surface disposed eccentrically with respect to the rotation axis.

In some embodiments, the rotary tool is rotatably assembled to the movable portion.

In some embodiments, the biasing member includes an elastic body assembled or attached to the movable portion.

In some embodiments, the rotary tool has a rotary knob portion.

In some embodiments, the mounting mechanism further includes a member for displaying a rotational position of the rotary knob portion.

In some embodiments, the mounting mechanism further comprises means for preventing rotation of the rotary tool.

In some embodiments, the means for preventing the rotation of the rotary tool includes two or more blocks disposed so as to sandwich the rotary tool.

A molding machine according to an aspect of the present invention includes:

a mounting mechanism for a machining tool according to any one of the above;

a punch mounted to the mounting portion of the mounting mechanism; and

and a mandrel to which a metal material to be processed by the punch is supplied.

a movable portion that moves along an axis;

a working tool assembled to the movable portion so as to be displaceable in a direction along the axis;

a biasing member that biases the machining tool along the axis; and

and a rotating tool that directly or indirectly pushes the machining tool in a direction opposite to the biasing force of the biasing member based on rotation about a rotation axis.

In some embodiments, the rotary tool has a pushing portion for pushing the working tool, and the pushing portion is disposed eccentrically with respect to the rotary shaft.

In some embodiments, the rotary tool has a rotary knob portion.

A molding machine according to an aspect of the present invention includes:

a mounting mechanism for a machining tool according to any one of the above; and

and a mandrel to which a metal material to be processed by the processing tool is supplied.

According to an aspect of the present invention, fine adjustment of the relative position of the processing tool with respect to the movable portion and/or the mounting portion is facilitated.

Drawings

Fig. 1 is a schematic diagram of a system including a molding machine according to an aspect of the present invention, in which a metal material as a flat metal plate is cut at both sides in a width direction thereof in an upstream press machine, and the metal material as the flat metal plate is molded and cut in a downstream molding machine, and as a result, a stopper claw member as a metal piece is manufactured. The stopping pawl member can be assembled into the slider body by any of various methods.

Fig. 2 is a schematic side view of a stopper claw member as an example of a metal sheet molded by a molding machine according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a stopper claw member as an unlimited semi-finished product in a process of molding by the molding machine according to an embodiment of the present invention.

Fig. 4 is a schematic process diagram showing how a metal material is formed by a forming machine according to an embodiment of the present invention. In fig. 4(a), the narrow width portion of the metal material is bent to be small, and a U-shaped bent portion having a small bend is formed at the narrow width portion. The wide width portion is folded to be small, and an arc-shaped folded portion is formed in the wide width portion. In fig. 4(b), an arc-shaped bent portion is formed in the wide width portion of the metal material, and a terminal bent portion is formed in the vicinity of the end portion of the metal material. In fig. 4(c), the metal material is cut at the boundary of the unit length of the metal material. In fig. 4(d), a terminal bent portion is formed near the end of the metal material cut at the time of the present forming. In fig. 4(e), the degree of bending of the U-shaped bent portion which has been formed previously and is bent less is increased, with the result that a U-shaped bent portion which is bent more is formed.

Fig. 5 is a schematic diagram showing a schematic configuration of a molding machine according to an embodiment of the present invention, and schematically shows a plurality of punches, one cutter, and a metal material supply member arranged on an outer periphery of a mandrel.

Fig. 6 is a schematic front view of a mounting mechanism of a machining tool included in a molding machine according to an embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of a mounting mechanism of a machining tool included in a molding machine according to an embodiment of the present invention.

Fig. 8 is a schematic view showing the operation of the molding machine according to one embodiment of the present invention, and schematically shows the formation of a U-shaped bent portion and an arc-shaped bent portion having a small bend by the cooperation of the mandrel and the first punch.

Fig. 9 is a schematic view showing a U-shaped bent portion formed by the operation of fig. 8 of the molding machine to be bent into a small bend in the metal material.

Fig. 10 is a schematic view showing the operation of the molding machine according to one embodiment of the present invention, schematically showing the formation of the arc-shaped bent portion and the end bent portion by the cooperation of the mandrel and the first and second punches.

Fig. 11 is a schematic view showing an arc-shaped bent portion and a terminal bent portion formed in a metal material by the operation of fig. 10 of the molding machine.

Fig. 12 is a schematic view showing the operation of the molding machine according to one embodiment of the present invention, and schematically shows the cutting of the metal material by the operation of the cutter.

Fig. 13 is a schematic view showing the metal material being cut by the operation of fig. 12 of the molding machine.

Fig. 14 is a schematic view showing the operation of the molding machine according to one embodiment of the present invention, and schematically shows the formation of the end bend by the cooperation of the mandrel and the first and third punches.

Fig. 15 is a schematic view showing a terminal bent portion formed in a metal material by the operation of fig. 14 of the molding machine.

Fig. 16 is a schematic view showing the operation of the molding machine according to one aspect of the present invention, schematically showing the formation of a U-shaped bent portion having a large bend by the cooperation of the mandrel and the first, third, and fourth punches.

Fig. 17 is a schematic view showing a U-shaped bent portion formed by the operation of fig. 16 of the molding machine to have a large bend in the metal material.

Fig. 18 is a schematic cross-sectional view of a mounting mechanism of a machining tool according to another embodiment of the present invention.

Fig. 19 is a schematic view showing a manner in which the mounting portion is pushed by rotation of the rotary tool.

Description of the reference numerals

Axis X1

10 moving part

20 mounting part

30 rotating tool

40 force application part

Detailed Description

Non-limiting embodiments of the present invention will be described below with reference to fig. 1 to 19. The above embodiments of the invention and the features included in the embodiments are not independent of each other. Those skilled in the art will be able to combine embodiments and/or features without undue experimentation. Furthermore, the person skilled in the art will also be able to understand the synergistic effect obtained by this combination. The overlapping description between the embodiments is omitted in principle. The drawings are mainly for illustrating the invention and may be simplified for convenience of drawing.

Next, a molding machine and a molding method of a metal material will be described as a non-limiting example. Further, a method of manufacturing a stop pawl member of a slider for a slide fastener, which is one non-limiting example of a metal piece manufactured by a molding machine, will be described. The metal sheet manufactured by the molding machine is not limited to a finished product, and may be a semi-finished product processed by another manufacturing apparatus. The metal material formed by the forming machine may include various metals or metal alloys. Examples of the metal material or metal alloy include stainless steel (SUS), aluminum, iron, zinc, and copper-zinc alloy.

In some cases, the metal material exhibits elasticity after being formed by a forming machine, but is not limited thereto. Additionally or alternatively, the metal material may be in any form such as a metal wire, a metal foil, a metal plate, or the like. Additionally or alternatively, the cross-sectional shape of the metal material may be circular, triangular, rectangular, or other polygonal shape. Additionally or alternatively, the metal material may be a long strip, and cut and formed into a sheet by a forming machine.

The metal sheet obtained from the metal material may be various members according to the embodiment. For example, the metal sheet may be a mechanical component, an electrical component, a decorative component, or other types of components. As the mechanical component, the stopper claw member of the slider for a slide fastener is exemplified as described above, but the mechanical component is not limited thereto, and may be a structural component (for example, various metal frames) of various moving bodies such as an airplane, a motorcycle, a tricycle, a bicycle, a boat, and a submarine, a structural component of various manufacturing apparatuses, a toy such as a doll, and other kinds of articles. The electric component may be, for example, various terminal components such as a connection terminal and an electrode terminal, or other wiring components.

For convenience of explanation, a non-limiting example of manufacturing the stop pawl member of the slider for a slide fastener by forming and cutting a metal material as a metal plate material by a forming machine will be described below. The metal material is long and is fed downstream from a roll not shown. The metal material has ductility and ductility, and is bent along the outer peripheral surface of the mandrel by molding with a molding machine provided on the downstream side of the mandrel. The metal material returns to the original shape but retains the bent shape. The metal material is cut by a cutter incorporated in a molding machine to obtain a metal sheet. The stop pawl member of the slider for slide fastener is not limited to the shape illustrated in the drawings, and various other shapes can be adopted. The outer peripheral surface of the mandrel and the punch surface of the punch can be designed as desired by those skilled in the art according to the desired shape of the stop pawl member.

Fig. 1 is a diagrammatic view of a system 99 including the molding machine 92 of the present invention. In the upstream press 91, the metal material 80, which is a flat metal plate, is subjected to shearing work on both sides in the width direction thereof. The metal material 80, which is a flat metal plate, is formed and cut by the forming machine 92 on the downstream side. As a result, the stop claw member 70 as a metal sheet is manufactured. The stopping pawl member 70 can be assembled into the slider body by any of various methods.

The metal material 80 fed from a roll (not shown) is subjected to shearing processing by a punch 91. The press 91 punches the metal material 80 with one or more punches. The punch 91 includes one or more dies and one or more punches. The die or punch is appropriately given a shape to cut and process the metal material 80 into a desired shape. In some cases including the illustrated example, the concave portions are formed on both sides in the width direction of the metal material 80 by the punch 91. The recesses may be provided in the same manner on both sides in the width direction of the metal material 80. The width direction of the metal material 80 is orthogonal to the longitudinal direction and the thickness direction of the metal material 80. The longitudinal direction of the metal material 80 coincides with the direction in which the metal material 80 flows from the press 91 to the molding machine 92. The thickness direction of the metal material 80 may be a direction orthogonal to a pair of flat surfaces of the metal material 80.

As shown in fig. 1, the metal material 80 fed from the press machine 91 to the molding machine 92 is continuous in shape per unit length 80U. In the unit length 80U, the metal member 80 includes an upstream end 81, a downstream end 82, a narrow portion 83 between the upstream end 81 and the downstream end 82, a wide portion 84 between the upstream end 81 and the narrow portion 83, and a wide portion 85 between the downstream end 82 and the narrow portion 83. The wide width portion 84 is located on the upstream side of the wide width portion 85. As described above, there are various examples of the shape of the metal piece obtained from the metal material 80, even if limited to the stop pawl member of the slider for a slide fastener. Therefore, the description in this paragraph can be understood as a method of shearing the metal material 80 by the punch 91 in a manner suitable for manufacturing the stopper claw member as a certain non-limiting example. Obviously, it may be desirable to shear-work the metal material 80 into other shapes by the punch 91. The

end portions

81 and 82 are narrower than the

wide portions

84 and 85, similarly to the narrow portion 83. The upstream end 81 and the downstream end 82 may be referred to as a first end and a second end, respectively. The

wide portions

84 and 85 may be referred to as first and second wide portions, respectively.

The metal piece, that is, the stopper claw member 70 in the illustrated example is continuously discharged from the metal material 80 by molding and cutting by a molding machine 92 which will be described later in detail. The end 82 included in the portion having the unit length 80U when the portion having the unit length 80U is formed in this time by the forming machine 92 is a free end generated by cutting the metal material 80 in the process of forming the portion having the unit length 80U in the previous time by the forming machine 92. At the start of the present partial molding of the unit length 80U by the molding machine 92, the end portion 81 included in the unit length 80U is connected to the end portion 82 of the unit length 80U on one upstream side. At this time of molding, the molding machine 92 cuts the end portion 81 and the end portion 82, and thereby the

end portions

81 and 82 become free end portions. At the same time, a metal piece corresponding to or identical to the part of the unit length 80U to be molded in this time by the molding machine 92 is cut out from the metal material 80.

Fig. 2 is a schematic side view of the stop pawl member 70 as one example of the metal sheet molded by the molding machine 92. Fig. 3 is a schematic perspective view of the stopper claw member 70 as an unlimited semi-finished product in the process of molding by the molding machine 92. As is apparent from fig. 2 and 3, the forming by the forming machine 92 forms the terminal bent portion 86 between the end portion 81 and the wide portion 84, the terminal bent portion 87 between the end portion 82 and the wide portion 85, and the U-shaped bent portion 88 in the narrow portion 83. The molding by the molding machine 92 further forms an arcuate bent portion 89m in the wide portion 85 and an arcuate bent portion 89n in the wide portion 84.

Fig. 4 is a schematic process diagram showing how the metal material 80 is molded by the molding machine 92. In fig. 4(a), the narrow portion 83 of the metal material 80 is bent to be small, and a U-shaped bent portion 88 which is bent to be small is formed in the narrow portion 83. The wide width portion 84 is folded to be small, and an arc-shaped folded portion 89n is formed in the wide width portion 84. In fig. 4(b), an arc-shaped bent portion 89m is formed in the wide portion 85 of the metal member 80, and a terminal bent portion 87 is formed in the vicinity of the end portion 82 of the metal member 80. In fig. 4(c), the metal member 80 is cut at the boundary of the unit length 80U of the metal member 80. In fig. 4(d), a terminal bent portion 86 is formed near the end portion 81 of the metal material 80 cut at the time of the present forming. In fig. 4(e), the degree of bending of the U-shaped bent portion 88 which has been formed so far and is bent less is increased, with the result that the U-shaped bent portion 88 which is bent more is formed. When the stopper claw member 70 is discharged from the molding machine 92, the stopper claw member 70 is deformed from the shape shown in fig. 4(e) by its elasticity, and the gap between the arc-shaped bent portion 89m and the arc-shaped bent portion 89n can be increased.

Fig. 5 is a schematic diagram showing a schematic configuration of the molding machine 92. The molding machine 92 includes a mandrel 110, a mandrel support 120, a punch 130, a cutter 140, a supply member 150, a controller 170, and a drive source 174. A plurality of punches 130, one cutter 140, and a metal material supply member 150 are disposed on the outer periphery of the mandrel 110. In some cases, the mandrel 110, punch 130, and cutter 140 of the forming machine 92 are movable components. In some cases, a plurality of drive sources 174 whose number is equal to or less than the total number of movable members is provided. Illustration of a power transmission mechanism provided between the drive source 174 and the movable member is omitted. The punch 130 and the cutter 140 are non-limiting examples of the machining tool.

The metal material 80 is disposed on the outer peripheral surface of the mandrel 110. In some cases including the illustrated example, the mandrel 110 is a columnar member, for example, a metal columnar member, but is not limited thereto. Further, the mandrel 110 has one or more mandrel protrusions 3 extending in the axial direction. The axial direction in which the mandrel protrusion 3 extends may coincide with the longitudinal direction of the mandrel 110. Has an outer peripheral surface suitable for forming one or more bent portions in the metal material 80 by the cooperation of the mandrel 110 and the punch 130.

The mandrel support portion 120 has a space extending in the axial direction, and supports the mandrel 110 inserted or disposed in the space. The mandrel support portion 120 is, for example, a metal cylindrical member. In some cases, the inner circumferential surface profile that defines the space of the mandrel support portion 120 is similar to the outer circumferential surface profile of the mandrel 110, as viewed in the axial direction of the mandrel 110. The inner circumferential surface profile defining the space of the mandrel support 120 is slightly larger than the outer circumferential surface profile of the mandrel 110 in order to allow axial movement of the mandrel 110.

The mandrel 110 can be positioned so as to protrude from the mandrel support 120. In some cases, the mandrel 110 can be relatively moved with respect to the mandrel support 120. Alternatively or additionally, the mandrel support 120 can be moved relative to the mandrel 110.

In some cases including the illustrated example, first to fourth punches 131 to 134 are provided as the punch 130. It is assumed that the first, second, and

fourth punches

131, 132, and 134 are omitted and only the third punch 133 is provided. The first, second, third, and fourth are assigned to distinguish the elements having the same name, i.e., the punches herein, and are omitted if there is no distinction or the distinction is low.

Each punch 130 is provided on the outer periphery of the mandrel 110, and operates to form one or more bent portions in the metal material 80 in cooperation with the outer peripheral surface of the mandrel 110. Each punch 130 moves toward the mandrel 110, and presses the metal material 80 disposed on the outer peripheral surface of the mandrel 110. The metal material 80 is pressed between the punch 130 and the mandrel 110, whereby the metal material 80 is molded into a shape corresponding to the outer peripheral surface of the mandrel 110 and/or the punching surface of the punch 130. As a result, one or more bent portions are formed in the metal material 80. The bent portion may be a portion bent at any angle other than 180 degrees. The bent portion may include various bent shapes such as a V shape, a U shape, a C shape, a low ridge shape, and a steep ridge shape. In some cases including the illustrated example, the punching face of the punch 130 may be an end face of the punch 130 on the side of the mandrel 110, i.e., a face opposite to the mandrel 110.

In some cases including the illustrated example, the punch 130 moves toward the mandrel 110 while being guided by the guide cylinder 160. The punch 130 is moved closer to the mandrel 110 or away from the mandrel 110 by power supplied from a driving source 174 such as a motor via a power transmission mechanism, respectively. The motor may be a stepper motor controlled with a pulse signal. The drive source 174 is not limited to a motor, and may be another drive source such as an engine. The power transmission mechanism may be any mechanism that converts the rotational force generated by the drive source 174 into the linear motion of the punch. As can be seen from fig. 6 and 7, the power transmission mechanism may include the movable portion 10 that moves along the axis X1. The position where the punch 130 is closest to the mandrel 110 is referred to as a machining position, and the position where the punch 130 is farthest from the mandrel 110 is referred to as a retracted position.

The cutter 140 operates to cut the metal material 80. The cutter 140 reciprocates between the retracted position and the cutting position by power supplied from a drive source 174, for example, a motor, via a power transmission mechanism while being guided by the guide cylinder 160. As described above, the drive source 174 and the power transmission mechanism may take various forms according to the embodiment. When the cutter 140 is in the cutting position, the metal material 80 is cut by the cutting edge of the cutter 140. In some cases, the cutter 140 cuts the metal material 80 at the boundary of the unit length 80U of the metal material 80 as described above.

The controller 170 performs control to move each of the punch 130 and the cutter 140 disposed on the outer periphery of the mandrel 110 at an appropriate timing. For example, the controller 170 provides instructions to the drive source 174. The drive source 174 generates a predetermined amount of power in accordance with a command from the controller 170. The power generated by the drive source 174 is transmitted to the punch 130 via the power transmission mechanism, and the punch 130 is moved. The cutter 140 is also moved by the power from the drive source 174.

Each punch 130 moves from the retracted position to the machining position at an appropriate timing based on the control of the controller 170. Each punch 130 is moved from the machining position to the retracted position at an appropriate timing under the control of the controller 170. The cutter 140 moves from the retracted position to the cutting position at an appropriate timing based on the control of the controller 170. The cutter 140 moves from the cutting position to the retracted position at an appropriate timing based on the control of the controller 170.

The controller 170 may include a sequencer. The controller 170 may be suitably constructed of hardware, software, or a combination thereof. The hardware may include a CPU, a memory, a bus, an I/O circuit, an interface circuit, an image processing circuit, an image display device, and the like. The software may include one or more programs that can be executed by the CPU.

The supply part 150 includes a first die 151 and a second die 152. The metal material 80 is fed onto the mandrel 110 through a gap between the first die 151 and the second die 152. The metal material 80 is fed from a roll to the downstream side by a conveying unit, not shown, such as a roll-to-roll conveying device.

The structure of the attachment mechanism of the machining tool included in the molding machine 92 will be described with reference to fig. 6 and 7. Fig. 6 is a schematic front view of a mounting mechanism of a processing tool included in the molding machine 92. Fig. 7 is a schematic cross-sectional view of a mounting mechanism of a processing tool included in the molding machine 92. Fig. 6 and 7 show a mounting mechanism for mounting the punch 133 as a machining tool, and the structure of the mounting mechanism will be described with reference to these drawings. However, it will be appreciated that (if desired) more than one other punch or cutter may be mounted to the same mounting means.

The mounting mechanism of the machining tool includes a movable portion 10, a mounting portion 20, a rotary tool 30, and a biasing member 40. The movable portion 10 moves along the axis X1. For example, the movable portion 10 is provided at an output end of a power transmission mechanism for transmitting power from the drive source 174. The axis X1 may be a direction orthogonal to the axial direction of the mandrel 110. The mounting portion 20 is a portion for mounting a machining tool, i.e., a punch 133 in this case. The working tool is not limited to the punch or the cutter, and may be any other various working tools. The mounting portion 20 is assembled to the movable portion 10 so as to be displaceable in a direction along the axis X1. The biasing member 40 biases the mounting portion 20 along the axis X1. The rotary tool 30 directly or indirectly pushes the mount portion 20 in a direction opposite to the urging force of the urging member 40 based on the rotation around the rotation axis AX. With this configuration, the relative position between the movable portion 10 and the mounting portion 20 is adjusted by adjusting the rotational position of the rotary tool 30. The relative position of the mounting portion 20 with respect to the movable portion 10, and thus the processing tool mounted to the mounting portion 20, with respect to the movable portion 10 can be easily finely adjusted.

The movable portion 10 is movable along the axis X1 by power from the drive source 174. For example, the movable portion 10 receives power from a rotating body (flange) that rotates in response to the power from the drive source 174, and moves along the axis X1. The position of the movable portion 10 on the axis X1 is determined in accordance with the rotational position of the rotating body (flange). The rotary body (flange) and the movable part 10 may be connected via a crank mechanism. The rotary body (flange) and the movable portion 10 may be connected in other manners. The movement of the movable portion 10 along the axis X1 may be guided by a guide not shown.

The movable portion 10 advances toward the mandrel 110 (and/or the metal material 80 supplied to the mandrel 110) and retreats away from the mandrel 110 (and/or the metal material 80 supplied to the mandrel 110). In some cases, including the illustrated example, the movable part 10 is a flat plate member, extending along an axis X1. However, the movable portion 10 may take various shapes other than the illustrated shape. The movable portion 10 may have various other shapes, such as a U shape and a V shape, according to the change in the arrangement position of the rotary tool 30 or the biasing member 40. In some cases, the movable portion 10 is constituted by a single member, or is constituted by combining two or more members.

The mounting portion 20 is assembled to the movable portion 10 as described above. Therefore, if the movable part 10 is displaced along the axis X1, the mount part 20 assembled to the movable part 10 is also displaced along the axis X1. It is also conceivable to assemble the mounting portion 20 to the movable portion 10 by a linear guide. The rotary tool 30 is rotatably assembled to the movable portion 10. Therefore, if the movable part 10 is displaced along the axis X1, the rotary tool 30 assembled to the movable part 10 is also displaced along the axis X1. The biasing member 40 is assembled to the movable portion 10 so as to be deformable or extendable and retractable. Therefore, if the movable part 10 is displaced along the axis X1, the urging member 40 assembled to the movable part 10 is also displaced along the axis X1.

The biasing member 40 may be any member capable of biasing the mounting portion 20. For example, the urging member 40 may be an air cylinder or a hydraulic cylinder. In some cases, including the illustrated example, the force application member 40 may include more than one elastomer. In some cases including the illustrated example, the urging member 40 is assembled to the movable portion 10. The biasing member 40 includes an elastic body assembled or attached to the movable portion 10. The elastomer may comprise rubber, springs, or a combination thereof. The spring as the urging member 40 may be at least partially housed in the housing space 10n of the movable portion 10. The pin (pin)45 fixed to the mounting portion 20 is spring-pressed in the housing space 10n of the movable portion 10, whereby the mounting portion 20 assembled to the movable portion 10 can be biased toward the rotary tool 30.

In some cases, including the illustrated example, the force application member 40 applies a force to the mounting portion 20 in a direction away from the stem 110. The rotary tool 30 pushes the mount 20 in a direction close to the spindle 110 or allows the mount 20 to move in a direction away from the spindle 110 in correspondence with the rotation thereof. A different embodiment from this is conceivable in which the biasing member 40 biases the attachment portion 20 in a direction approaching the stem 110. In this case, the rotating tool 30 pushes the mount 20 in a direction away from the spindle 110 corresponding to the rotation thereof, or allows the mount 20 to move in a direction close to the spindle 110. That is, the manner of providing the rotary tool 30 or the urging member 40 may be various.

In some cases, including the illustrated example, direct contact between the mount 20 and the rotary tool 30 may be ensured. The direct contact between the mount 20 and the rotary tool 30 can be maintained regardless of the rotational position of the rotary tool 30, but is not limited thereto. Another example in which one or more relay members are provided between the mount 20 and the rotary tool 30 is also conceivable. In this case, the rotary tool 30 pushes the mount 20 via the relay member.

The rotating tool 30 may have a pushing portion 31 for pushing the mounting portion 20. In some cases, the pushing portion 31 is disposed eccentrically with respect to the rotation axis AX of the rotary tool 30. In some cases, the outer peripheral surface 31h of the pushing portion 31 is disposed eccentrically with respect to the rotation axis AX of the rotary tool 30. The outer peripheral surface 31h of the pushing portion 31 may be an ellipse or a perfect circle that is eccentrically provided with respect to the rotation axis AX of the rotary tool 30. In either case, the displacement of the mounting portion 20 along the axis X1 caused by the rotation of the rotary tool 30 can be achieved by a simple configuration. Alternatively or additionally, smooth displacement of the mounting portion 20 along the axis X1 caused by rotation of the rotary tool 30 can be achieved.

The rotary tool 30 may be assembled to the movable part 10 and/or rotatable on the movable part 10. In some cases including the illustrated example, the shaft portion 33 of the rotary tool 30 is inserted into the shaft hole 10m of the movable portion 10. That is, the rotary tool 30 is pivotally supported by the movable portion 10. The shaft portion 33 may be a cylinder having the rotation axis AX as a central axis. The pushing portion 31 may be a cylindrical portion having a larger diameter than the shaft portion 33 and provided eccentrically from the rotation axis AX. The shaft hole 10m may be bottomed or bottomless. In addition, the rotary tool 30 may be referred to as an eccentric pin.

In some cases, the rotary tool 30 has a rotary knob portion 32. The operator rotates the rotary knob portion 32 of the rotary tool 30 by hand or a tool (e.g., a wrench), thereby rotating the rotary tool 30. In some cases, the rotary knob portion 32 may be a cover member that is screwed with the shaft portion 33.

By providing a member for displaying the rotational position of the rotary knob portion 32, it is possible to allow the amount of rotation of the rotary tool 30 to be quantified, and as a result, the amount of displacement of the mounting portion 20 and/or the machining tool to be quantified. In some cases including the illustrated example, as a member indicating the rotational position of the rotary tool 30, a mark (not shown) attached to the rotary knob portion 32 and a scale plate 68 provided on the outer periphery of the rotary knob portion 32 are used. The scale plate 68 has two or more scale lines provided at regular or irregular intervals in the circumferential direction around the rotation axis AX. The amount of rotation of the rotary tool 30 can be grasped based on the relationship between the mark attached to the rotary knob portion 32 and the scale lines.

The radial scale lines are not limited to those provided over the entire 360 °, and for example, those provided over a range limited to 90 ° are also conceivable. In the illustrated example, the scale marks are provided at regular angular intervals over the entire 360 ° range, and the amount of rotation of the rotary tool 30 can be accurately grasped. In addition, the scale plate 68 need not have scale lines arranged at angular intervals. The dial plate 68 may have tick marks configured at custom angular intervals. In either case, the operator can accurately grasp the amount of rotation of the rotary knob portion 32 by referring to the scale plate 68. As a result, highly accurate positioning of the mounting portion 20 and/or the processing tool mounted to the mounting portion 20 with respect to the movable portion 10 can be facilitated, and the repeatability thereof can be improved. Further, the machining accuracy of the metal material by the machining tool can be improved. The degree of displacement of the mounting portion 20 and/or the machining tool according to a certain amount of rotation of the rotary tool 30 can be quantified in advance.

In order to leave the rotation tool 30 at the rotation position after the rotation position of the rotation tool 30 is appropriately set, a member for preventing the rotation tool 30 from rotating is provided in some cases. In some cases including the illustrated example, the means for preventing the rotation of the rotary tool 30 includes two or more blocks 50 arranged in such a manner as to sandwich the rotary tool 30. In the case where the block 50 slightly sandwiches the rotary tool 30 (precisely, the shaft portion 33 thereof), free rotation of the rotary tool 30 is ensured by a gap between the rotary tool 30 and the block 50. On the other hand, when the block 50 firmly sandwiches the rotary tool 30 (precisely, the shaft portion 33 thereof), there is no gap between the rotary tool 30 and the block 50, and free rotation of the rotary tool 30 is prevented. Although the rotational force transmitted to the rotary tool 30 is transmitted to the block 50, the rotary tool 30 cannot be rotated because the block 50 is provided in a non-rotatable manner. In the illustrated example, the block 50 is not rotatable by the rotation preventing plate 61. The rotation preventing plate 61 may be a flat plate fixed to the movable part 10.

Next, a non-limiting example of the operation of the molding machine 92 will be described with reference to fig. 8 to 17. Fig. 8 is a schematic diagram showing the operation of the molding machine 92. The formation of the less folded U-shaped fold 88 is schematically shown by the co-operation of the mandrel 110 with the first punch 131. Fig. 9 is a schematic view showing a U-shaped bent portion 88 formed by the operation of the forming machine 92 in fig. 8 and having a small bend in the metal material 80.

As is apparent from fig. 8 and 9, the metal material 80 is fed to the mandrel 110 through a gap between the first die 151 and the second die 152 of the feeding member 150. The metal material 80 is supplied to the end of the mandrel 110 protruding from the end surface 120s of the mandrel support 120. The metal material 80 supplied to the mandrel 110 is arranged flat and linearly on the mandrel 110 before being pressed by the first punch 131. The first punch 131 is moved toward the mandrel 110 by power from the driving source 174 accordingly. When the first punch 131 reaches the machining position, the metal material 80 is pressed and bent between the first punch 131 and the mandrel 110, and a U-shaped bent portion 88 with a small bend is formed in the metal material 80. The metal material 80 is bent until the end 82 of the metal material 80 contacts the mandrel 110. When the metal material 80 is supplied onto the mandrel 110, the mandrel 110 protrudes by a length L1 from the end surface 120s of the mandrel support 120. The second to fourth punches 132 to 134 and the cutter 140 are located at the retreat position.

Fig. 10 is a schematic view showing the operation of the molding machine 92, and schematically shows the formation of the arc-shaped bent portion 89m and the end bent portion 87 by the cooperation of the core shaft 110 and the first and

second punches

131 and 132. Fig. 11 is a schematic view showing the arcuate bent portion 89m and the terminal bent portion 87 formed in the metal material 80 by the operation of the molding machine 92 shown in fig. 10. Following the first punch 131, the second punch 132 is correspondingly moved toward the mandrel 110 by power from the drive source 174. When the second punch 132 reaches the machining position, the metal material 80 is pressed and bent between the second punch 132 and the core shaft 110, and an arc-shaped bent portion 89m and a terminal bent portion 87 are formed in the metal material 80.

Fig. 12 is a schematic view showing the operation of the molding machine 92, and schematically shows the cutting of the metal material 80 by the operation of the cutter 140. Fig. 13 is a schematic view showing the metal material being cut by the operation of the molding machine 92 shown in fig. 12. After the second punch 132, the cutter 140 is moved vertically and/or upward by the power from the drive source 174. When the cutter 140 reaches the cutting position, the metal material 80 is cut at the boundary of the adjacent unit length 80U by the cutter 140. The end of the metal material 80 on the mandrel 110 located on the downstream side of the cutting position of the metal material 80 is slightly displaced upward from the mandrel 110 by the cutter 140. The cutter 140 returns to the retracted position after cutting the metal material 80.

Fig. 14 is a schematic diagram showing the operation of the molding machine 92, and schematically shows the formation of the bent end portion 86 by the cooperation of the core shaft 110 and the first and

third punches

131 and 133. Fig. 15 is a schematic view showing the formation of the terminal bent portion 86 in the metal material 80 by the operation of the forming machine 92 shown in fig. 14. After the cutter 140 cuts the metal material 80, the third punch 133 is moved in the vertical direction and/or downward by the power from the drive source 174. When the third punch 133 reaches the machining position, the metal material 80 is pressed and bent between the third punch 133 and the mandrel 110, and the end bend 86 is formed in the metal material 80. The third punch 133 has a protrusion 133f, and the metal member 80 (end 81) is sandwiched between the protrusion 133f and the mandrel 110. The wide width portion 84 of the metal material 80 is pressed and bent between the third punch 133 and the core 110, and the arc-like bent portion 89n of the wide width portion 84 is further bent.

After the cutter 140 cuts the metal material 80 (in the illustrated example, after the cutter 140 cuts the metal material 80 and the third punch 133 forms and bends the metal material 80), the amount of protrusion of the mandrel 110 from the mandrel support 120 is adjusted. Specifically, the movement of the mandrel 110 with respect to the mandrel support 120 and/or the movement of the mandrel support 120 with respect to the mandrel 110 is performed. As is apparent from a comparison between fig. 15 and 17, the mandrel 110 shifts from a state in which it protrudes by a length L1 from the end surface 120s of the mandrel support 120 to a state in which it protrudes by a length L2 from the end surface 120s of the mandrel support 120. Length L2 is less than length L1. In some cases, length L2 is about half of length L1. In response to this, the metal material 80 (metal piece cut out from the metal material 80) on the mandrel 110 moves onto the mandrel protrusions 3 of the mandrel 110. Another example is conceivable in which the metal material 80 is moved onto the mandrel protrusion 3 of the mandrel 110 by a method other than changing the amount of protrusion of the mandrel 110 from the mandrel support 120.

Fig. 16 is a schematic diagram showing the operation of the forming machine 92, and schematically shows the formation of the U-shaped bent portion 88 having a large bend by the cooperation of the mandrel 110 and the first, third, and

fourth punches

131, 133, and 134. Fig. 17 is a schematic view showing a U-shaped bent portion 88, which is bent largely, formed in the metal material 80 by the operation of the molding machine 92 shown in fig. 16. Subsequent to the third punch 133, the fourth punch 134 is correspondingly moved toward the mandrel protrusion 3 of the mandrel 110 by the power from the driving source 174. When the fourth punch 134 reaches the machining position, the metal material 80 is pressed and bent between the fourth punch 134 and the mandrel protrusion 3, and a U-shaped bent portion 88 having a large bend is formed in the metal material 80.

In some cases including the illustrated example, next, the mandrel 110 and/or the mandrel support 120 are moved in such a manner that the mandrel protrusions 3 of the mandrel 110 do not protrude from the end surface 120s of the mandrel support 120. Thereby, the stop claw member 70 is released from the mandrel 110 and is supplied to the storage box or the bag via a discharge path not shown.

The machining tools such as the punches 130 and the cutters 140 are attached to the attachment mechanism shown in fig. 6 and 7. Therefore, the machining tool can be appropriately positioned with respect to the mandrel 110 and/or the metal material 80. Even if the position of the machining tool needs to be finely adjusted for some reason during the molding of the metal material 80, the fine adjustment can be easily performed by changing the rotational position of the rotary knob portion 32. This is particularly advantageous in molding a minute part such as a stopper claw member.

When the punch 130 cooperates with the mandrel 110 to mold the metal material 80, the impact applied to the punch 130 is transmitted to the movable portion 10 via the mounting portion 20 and the rotary tool 30. The mounting mechanism is suitably constructed in such a manner as to be able to sufficiently withstand such mechanical shocks.

Referring to fig. 18, an attachment mechanism of a machining tool according to another embodiment will be described. The present invention is not limited to the case where a working tool such as a punch is attached to the movable portion 10 via the attachment portion 20, and a case where a working tool is attached to the movable portion 10 without via the attachment portion 20 is also conceivable. In such a case, as described above, by rotating the rotary tool 30 and pushing the working tool in the direction opposite to the biasing force of the biasing member 40 to the working tool, fine adjustment of the relative position of the working tool with respect to the movable portion 10 can be allowed.

As shown in fig. 18, the mounting mechanism of the machining tool includes: a movable portion 10 moving along an axis X1; a working tool (here, a punch 133) assembled to the movable portion 10; a biasing member 40 for biasing the working tool along an axis X1; and a rotary tool 30 that directly or indirectly pushes the machining tool in a direction opposite to the urging force of the urging member 40 based on the rotation around the rotation axis AX. Features that are the same as or similar to those described with reference to fig. 6 and 7 are also applicable to the example of fig. 18, and redundant description is omitted. Except that the rotary tool 30 has an urging portion 31 for urging the working tool instead of the mounting portion 20. The biasing member 40 biases a pin 45 fixed to the machining tool. A configuration in which the machining tool is assembled to the movable portion 10 via the linear guide is also conceivable.

With careful attention given to fig. 19, a description will be given of a mode in which the mounting portion is pushed by the rotation of the rotary tool. When the push portion 31 is displaced about the rotation axis AX from the position shown by the solid line to the position shown by the broken line in fig. 19, the mount portion 20 is displaced along the axis X1 from the position shown by the solid line to the position shown by the broken line. The force applied to the mounting portion 20 by the urging member 40 is set so as not to interfere with the rotation of the rotary tool 30 that displaces the pushing portion 31. Similarly, when the pushing portion 31 is displaced from the position shown by the broken line to the position shown by the solid line in fig. 19, the mounting portion 20 is displaced from the position shown by the broken line to the position shown by the solid line. The force applied to the mounting portion 20 by the urging member 40 is set so as to ensure direct contact between the pushing portion 31 and the mounting portion 20 regardless of the position of the pushing portion 31. Similarly, the case where the mounting portion 20 is replaced with a machining tool can be understood.

Based on the above teaching, a person skilled in the art can modify the embodiments variously. Reference signs placed within the scope of the claims are provided for reference only and are not intended to limit the scope of the claims.

Claims

1. An attachment mechanism for a machining tool, comprising:

a movable section (10) that moves along an axis (X1);

a mounting portion (20) to which a machining tool (130, 140) is mounted, the mounting portion being assembled to the movable portion (10) so as to be displaceable in a direction along the axis (X1);

a rotating tool (30) that is assembled to the movable section (10) so as to be rotatable about a rotation Axis (AX); and

an urging member (40) that urges the mounting portion (20) along the axis (X1) toward the rotary tool (30);

the rotating tool (30) has an urging portion (31) provided eccentrically with respect to the rotating shaft (AX), and the urging portion (31) directly or indirectly urges the attachment portion (20) in a direction opposite to the urging force of the urging member (40).

2. The mounting mechanism of a machining tool according to claim 1, wherein:

the pushing portion (31) has an outer peripheral surface (31h) that is provided eccentrically with respect to the rotation Axis (AX).

3. The mounting mechanism of a working tool according to claim 1 or 2, wherein:

the urging member (40) includes an elastic body assembled or attached to the movable portion (10).

4. The mounting mechanism of a working tool according to claim 1 or 2, wherein:

the rotary tool (30) has a rotary knob portion (32).

5. The mounting mechanism of a machining tool according to claim 4, wherein:

the rotary knob unit is also provided with a member for displaying the rotational position of the rotary knob unit (32).

6. The mounting mechanism of a working tool according to claim 1 or 2, wherein:

the tool is also provided with a member for preventing the rotation of the rotating tool (30).

7. The mounting mechanism of a machining tool according to claim 6, wherein:

the means for preventing the rotation of the rotating tool (30) includes two or more blocks disposed so as to sandwich the rotating tool (30).

8. A molding machine is characterized by comprising:

a mounting mechanism for a working tool according to any one of claims 1 to 7;

a punch (130) mounted to the mounting portion (20) of the mounting mechanism; and

a mandrel (110) to which a metal material (80) to be processed by the punch (130) is supplied.

9. An attachment mechanism for a machining tool, comprising:

a movable section (10) that moves along an axis (X1);

a machining tool (130, 140) assembled to the movable part (10) so as to be displaceable in a direction along the axis (X1);

a biasing member (40) that biases the working tool (130, 140) along the axis (X1) toward the rotary tool (30);

the rotating tool (30) has a pushing portion (31) provided eccentrically with respect to the rotating shaft (AX), and the pushing portion (31) directly or indirectly pushes the machining tools (130, 140) in a direction opposite to the biasing force of the biasing member (40).

10. The mounting mechanism for a machining tool according to claim 9, wherein:

11. The mounting mechanism of a working tool according to claim 9 or 10, wherein:

12. The mounting mechanism of a working tool according to claim 9 or 10, wherein:

the rotary tool (30) has a rotary knob portion (32).

13. The mounting mechanism for a machining tool according to claim 12, wherein:

14. The mounting mechanism of a working tool according to claim 9 or 10, wherein:

15. The mounting mechanism for a machining tool according to claim 14, wherein:

16. A molding machine is characterized by comprising:

a mounting mechanism for a machine tool according to any one of claims 9 to 15; and

a mandrel (110) to which a metal material (80) to be processed by the processing tool (130, 140) is supplied.