JP2014223632A - Press device, press system and press working method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a press device, a press system and a press working method having high accuracy and high productivity.SOLUTION: A press device includes a workpiece conveyance part 3 for conveying a workpiece 9, a press part 4 for pressing the workpiece 9 conveyed by the workpiece conveyance part 3, and a control part 7 for controlling conveyance distance of the workpiece 9 conveyed by the workpiece conveyance part 3.

Description

  The present invention relates to a press apparatus, a press system, and a press processing method for press-molding a workpiece.

  2. Description of the Related Art Conventionally, an axial gap type motor that can prevent positional deviation in the circumferential direction of a magnet piece housing portion of a rotor core configured by winding a tape-shaped electromagnetic steel sheet has been disclosed (see Patent Document 1).

JP 2010-283923 A

  The electromagnetic steel sheet described in Patent Document 1 is wound on the core when it is pressed, so that the distance between the centers of the spoke part cutouts is increased from the innermost diameter side toward the outermost diameter side. There is a need.

  An object of the present invention is to provide a press device, a press system, and a press processing method with high accuracy and high productivity.

A press device according to an embodiment of the present invention includes:
A workpiece conveying section for conveying the workpiece;
A pressing unit for pressing the workpiece conveyed by the workpiece conveying unit;
A control unit for controlling a conveyance distance of the workpiece conveyed by the workpiece conveyance unit;
It is characterized by providing.

A press device according to an embodiment of the present invention includes:
The press section includes a first punch and a second punch arranged side by side in the conveying direction of the workpiece.

A press device according to an embodiment of the present invention includes:
The conveyance distance of the workpiece conveyance unit controlled by the control unit is longer than the distance from the rear end of the first punch to the tip of the second punch in the conveyance direction of the workpiece, It is shorter than the distance from the rear end of one punch to the rear end of the second punch.

A press device according to an embodiment of the present invention includes:
The control unit is characterized in that the conveyance distance of the workpiece conveyance unit is gradually increased.

A press device according to an embodiment of the present invention includes:
The said control part makes the said conveyance distance of the said workpiece conveyance part the same distance predetermined times, and lengthens it in steps.

A press device according to an embodiment of the present invention includes:
The control unit is characterized in that the pressing interval of the pressing unit is constant and the conveying speed of the workpiece conveying unit is increased.

A press device according to an embodiment of the present invention includes:
The control unit is characterized in that the conveyance speed of the workpiece conveyance unit is constant and the pressing interval of the press unit is delayed.

A press device according to an embodiment of the present invention includes:
The controller is
A storage unit for storing a conveyance distance of the workpiece conveying unit;
A conveyance distance acquisition unit for acquiring a conveyance distance of the workpiece conveying unit;
Have
The conveyance of the workpiece conveyance unit is stopped when the conveyance distance stored in the storage unit and the conveyance distance acquired by the conveyance distance acquisition unit become the same.

A press system according to an embodiment of the present invention includes:
The press device;
A workpiece setting portion for setting the workpiece;
A workpiece take-up unit that winds up the workpiece pressed by the press device;
A tension portion that applies tension to the workpiece wound around the workpiece winding portion;
It is characterized by providing.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide a press apparatus, a press system, and a press work method with high precision and productivity.

It is a mimetic diagram showing one embodiment of a press system. It is the schematic which shows the press part 4 of this embodiment. It is the schematic which shows the operating state of the press part 4 of this embodiment. It is a figure which shows the state by which the to-be-processed material 9 of this embodiment was wound by the to-be-processed material winding part 6. FIG. It is a figure which shows the 1st feed state in which the to-be-processed material 9 was conveyed by the to-be-processed material conveyance part 3 of this embodiment to the processing position. It is a figure which shows the 1st punching state which punches the workpiece 9 in the press part 4 of this embodiment. It is a figure which shows the 2nd feed state by which the to-be-processed material 9 was conveyed by the to-be-processed material conveyance part 3 of this embodiment to the processing position. It is a figure which shows the 2nd punching state which punches the workpiece 9 in the press part 4 of this embodiment.

  FIG. 1 is a schematic diagram showing an embodiment of a press system 1.

  The press system 1 includes a workpiece installation unit 2, a workpiece transport unit 3, a press unit 4, a tension unit 5, a workpiece winding unit 6, and a control unit 7. The workpiece conveying unit 3, the press unit 4, and the control unit 7 constitute a press device.

  The work material installation part 2 is a part for installing the work material 9 before processing. The workpiece setting unit 2 of the present embodiment uses a disk-shaped member in which the workpiece 9 before processing is coiled and wound around the outer periphery.

  The workpiece conveyance unit 3 is a portion that sends the workpiece 9 installed in the workpiece installation unit 2 to the press unit 4. The workpiece conveyance unit 3 is controlled by the control unit 7 at the conveyance speed. The workpiece conveying unit 3 may be incorporated in the press unit 4.

  The press unit 4 is a unit for punching the workpiece 9 conveyed from the workpiece setting unit 2. The press part 4 has a holding part 4a and a pressing part 4b. The press unit 4 processes the workpiece 9 by progressive feeding. The press unit 4 is controlled by the control unit 7 in terms of press timing.

  The tension portion 5 is a portion that applies tension to the workpiece 9 processed by the press portion 4 when the workpiece winding portion 6 takes up the workpiece 9.

  The workpiece winding part 6 is a part that winds up the workpiece 9 processed by the press unit 4.

  The control unit 7 controls the conveyance speed of the workpiece conveyance unit 3 and the press timing of the press unit 4. The control unit 7 preferably includes a storage unit 71 and a timer 72 that store control content data. The control unit 7 may be built in the press unit 4.

  Next, each part of press system 1 of one embodiment concerning the present invention is explained. In the present embodiment, a case where a circular laminated member such as a rotor core of an axial gap motor is manufactured will be described as an example.

  FIG. 2 is a schematic view showing the press unit 4 of the present embodiment. 2A is a schematic view of the holding portion 4a viewed from above, and FIG. 2B is a schematic view of the pressing portion 4b viewed from below. FIG. 3 is a schematic view showing an operating state of the press unit 4 of the present embodiment.

  The press unit 4 of the present embodiment may have a general structure, and a support column 42 is set up on the bed 41a, and the slider 41b of the pressing unit 4b is moved up and down along the support column 42 to be placed on the die 43a of the holding unit 4a. Press the workpiece.

  In this embodiment, the die 43a shown in FIG. 2 (a) has a first main magnet part hole 44a, a second main magnet part hole 45a, a sub magnet part hole 46a, and a spoke part hole 47a. It is formed. Here, the first main magnet part hole 44a, the second main magnet part hole 45a, and the spoke part hole 47a are arranged in a straight line.

  Further, the pressing portion 4b of the pressing portion 4 of the present embodiment has a punch portion 43b facing the die 43a. The punch portion 43b shown in FIG. 2B includes a first main magnet portion punch 44b, a second main magnet portion punch 45b, a sub magnet portion punch 46b, and a spoke portion punch 47b. Here, the first main magnet portion punch 44b, the second main magnet portion punch 45b, and the spoke portion punch 47b are arranged in a straight line. The first main magnet portion punch 44b constitutes a first punch, and the second main magnet portion punch 45b constitutes a second punch.

  As shown in FIG. 3, when the press work is performed by such a press part 4, a main magnet part hole 91, a sub magnet part hole 92, and a spoke part notch 93 are formed in the workpiece 9. The The workpiece 9 is transported in the direction of arrow A by the workpiece transport section 3 shown in FIG. 1 after the main magnet section hole 91, the sub magnet section hole 92, and the spoke section cutout 93 are formed. Is done. Here, the hole 91 for main magnet parts and the notch 93 for spoke parts are formed along with linear form.

  The workpiece 9 conveyed by the workpiece conveying unit 3 is given a tension by the tension unit 5 shown in FIG. 1 and is taken up by the workpiece winding unit 6.

  FIG. 4 is a diagram illustrating a state in which the workpiece 9 according to this embodiment is wound around the workpiece winding portion 6.

  The workpiece 9 shown in FIG. 3 in which each hole has been punched out by the press section 4 is wound up by the workpiece winding section 6 as shown in FIG. In the subsequent process, the wound work material 9 is provided with a main magnet 81 in the main magnet portion hole 91, a sub magnet portion 82 in the sub magnet portion hole 92, and a spoke 83 in the notch 93 for the spoke portion. Inserted.

  Here, the main magnet 81 has a shape excluding a portion close to the center of the sector shape. Therefore, the length of the outer arc is longer than the length of the inner arc. Therefore, the main magnet portion hole 91 formed in the workpiece 9 wound outside is formed to have a longer circumferential length than the main magnet portion hole 91 of the workpiece 9 wound inside. Must. However, every time the length of the main magnet portion hole 91 changes, the die 43a and the punch portion 43b of the press portion 4 cannot be changed.

  Therefore, in the press system 1 of the present embodiment, the control unit 7 controls the conveyance speed of the workpiece conveyance unit 3 and the press timing of the press unit 4 to thereby increase the circumferential length of the main magnet unit hole 91. It can be processed to change. With such a press device, the processing shape of the workpiece 9 can be variously changed, and the degree of freedom in design can be increased.

  5-8 is the schematic diagram which expanded a part in order to demonstrate the action | operation state of the press part 4 of this embodiment. 5-8, each figure (a) is a schematic diagram of the cross section in the longitudinal direction centerline of the workpiece 9 in each state. Each figure (b) is a top view of workpiece 9 in each state.

  FIG. 5 is a diagram illustrating a first feed state in which the workpiece portion of the workpiece 9 is conveyed to the machining position by the workpiece conveyance unit 3 of the present embodiment.

  First, the work location of the work material 9 is sent from the work material installation unit 2 to the work material transport unit 3. The workpiece 9 is fed in the direction of arrow A on the longitudinal center line of the workpiece 9, and is disposed at the machining position above the die 43a as shown in FIG. In this state, the press part 4 does not operate yet.

  FIG. 6 is a diagram illustrating a first punching state in which the workpiece 9 is punched by the press unit 4 of the present embodiment.

Next, as shown in FIG. 6, the press portion 4 punches the workpiece 9 by lowering and pressing the punch portion 43 b in the direction of arrow B. At this time, the first main magnet portion hole 91 _{11 is formed} by the first main magnet portion punch 44b, the second main magnet portion punch 45b, the sub magnet portion punch 46b, and the spoke portion punch 47b of the punch portion 43b. The second main magnet part hole 91 ₁₂ , the sub magnet part hole 92 ₁ , and the spoke part notch 93 ₁ are formed.

  FIG. 7 is a diagram illustrating a second feed state in which the workpiece 9 is conveyed to the machining position by the workpiece conveyance unit 3 of the present embodiment.

Next, the punch part 43b is raised from the state shown in FIG. 6 in the direction of arrow C, and as shown in FIG. Sent in the direction and placed at the processing position. In working position, the second main magnet portion hole 91 _12, for the first main magnet portion hole 44a and the first main magnet portion in the vertical direction punched by the second main magnet portion punch 45b in the first punching state It is arranged at a position overlapping with the punch 44b.

  In other words, the conveyance distance of the workpiece conveyance unit 3 is set to a distance L1 from the rear end of the second main magnet unit punch 45b to the rear end of the first main magnet unit punch 44b in the arrow direction A. The distance from the rear end of the second main magnet part punch 45b to the front end of the first main magnet part punch 44b may be shorter than the distance L2.

  FIG. 8 is a diagram illustrating a second punching state in which the workpiece 9 is punched by the press unit 4 of the present embodiment.

Next, the press part 4 punches out the workpiece 9 by pressing the punch part 43b in the direction of arrow B as shown in FIG. At this time, the first main magnet portion hole 91 _{21 is formed} by the first main magnet portion punch 44b, the second main magnet portion punch 45b, the sub magnet portion punch 46b, and the spoke portion punch 47b of the punch portion 43b. The second main magnet part hole 91 ₂₂ , the sub magnet part hole 92, and the spoke part cutout 93 are formed.

Here, holes 91 ₁₂ for the second main magnet unit, since it is arranged at a position overlapping the first main magnet portion hole 44a and the first main magnet portion punch 44b in the vertical direction, for the first main magnet portion When the punch 44b is punched first main magnet portion hole 91 _21, a second main magnet portion hole 91 ₁₂ punched in the first punching state shown in FIG. 6, punched out in a second punching state shown in FIG. 8 the first main magnet portion hole 91 ₂₁ is connected with.

That is, the main magnet portions hole 91 includes a second main magnet portion hole 91 ₁₂ punched in the first punching state shown in FIG. 6, the first main magnet portion punched in the second punching state shown in FIG. 8 the use holes 91 ₂₁ are formed from. That is, the main magnet portions hole 91 includes a second main magnet portion hole 91 ₁₂ first main magnet portion hole 91 ₂₁ and connecting hole 91 _X1 for the main magnet portions overlapping.

  It is preferable to store each processing location of the workpiece 9 in advance in the storage unit 71 shown in FIG. For example, the conveyance distance of each time by the workpiece conveying unit 3 is calculated in advance and stored in the storage unit 71. Then, the movement distance of the workpiece 9 may be measured by the conveyance distance acquisition unit 72 such as a displacement sensor, and may be pressed when the conveyance distance stored in the storage unit 71 is reached. Such a press device can further increase the accuracy.

  In the case of processing by the press system 1 of the present embodiment, it is preferable that the transport distance by the workpiece transport unit 3 is gradually increased. Also, for example, press processing as a predetermined first conveyance distance a predetermined number of times, changing to a second conveyance distance longer than the first conveyance distance, press processing as a second conveyance distance constant a predetermined number of times, You may lengthen every stage. With such a press device, the processing shape of the workpiece 9 can be variously changed, and the degree of freedom in design can be increased.

  Moreover, you may change the conveyance speed of every time by the workpiece conveyance part 3 by making constant the space | interval to press. With such a pressing device, it is only necessary to control the workpiece conveying unit 3 and it is possible to operate it efficiently. In addition, a conveyance speed for a certain pressing interval is calculated in advance and stored in the storage unit 71, a timer is applied as the conveyance distance acquisition unit 72, and the movement of the workpiece 9 is stopped every predetermined time. However, you may press-work. Such a press device can further increase the accuracy.

  Furthermore, the interval of pressing each time by the pressing unit 4 may be changed with the conveyance speed being constant. With such a press device, only the press unit 4 needs to be controlled, and it is possible to operate efficiently. In addition, a pressing interval for a certain conveyance speed is obtained in advance by calculation and stored in the storage unit 71, a timer is applied as the conveyance distance acquisition unit 72, and the movement of the workpiece 9 is stopped every predetermined time. However, you may press-work. Such a press device can further increase the accuracy.

  As described above, the press apparatus according to the present embodiment includes a workpiece conveyance unit 3 that conveys a workpiece, a press unit 4 that presses a workpiece 9 conveyed by the workpiece conveyance unit 3, and a workpiece. And a control unit 7 that controls the transport distance of the workpiece 9 transported by the material transport unit 3. Therefore, it is possible to provide a press apparatus with high accuracy and high productivity.

  In the press device according to the embodiment of the present invention, the press unit 4 includes the first main magnet unit punch 44b and the second main magnet unit punch 45b arranged side by side in the conveying direction of the workpiece 9. In addition, it is possible to control the conveyance distance and press the first main magnet part punch 44b and the second main magnet part punch 45b, respectively, and to make the processing shape of the workpiece 9 variable. Become.

  In the press apparatus according to the embodiment of the present invention, the conveyance distance of the workpiece conveying unit 3 controlled by the control unit 7 is the rear end of the first main magnet unit punch 44b in the conveyance direction of the workpiece 9. Longer than the distance from the rear end of the first main magnet part punch 44b to the rear end of the second main magnet part punch 45b. The part pressed with the first main magnet part punch 44b of the workpiece 7 and the part pressed with the second main magnet part punch 45b can be connected, and the processing shape of the workpiece 9 can be changed variously. Therefore, the degree of freedom in design can be increased.

  In the press device according to an embodiment of the present invention, the control unit 7 gradually increases the conveyance distance of the workpiece conveying unit 3, so that the machining shape of the workpiece 9 can be changed variously. The degree of design freedom can be increased.

  In the press apparatus according to an embodiment of the present invention, the control unit 7 sets the conveyance distance of the workpiece conveyance unit 3 to be the same distance a predetermined number of times and lengthens it stepwise, so that the machining shape of the workpiece 9 varies. It is possible to increase the degree of freedom of design.

  In the press apparatus according to an embodiment of the present invention, the control unit 7 keeps the pressing interval of the pressing unit 4 constant and increases the conveying speed of the workpiece conveying unit 3. Any one of the parts 3 may be controlled, and the operation can be efficiently performed.

  In the press apparatus according to an embodiment of the present invention, the control unit 7 keeps the conveyance speed of the workpiece conveying unit 3 constant and slows the pressing interval of the pressing unit 4, so the pressing unit 4 or the workpiece conveyance Any one of the parts 3 may be controlled, and the operation can be efficiently performed.

  In the press device according to an embodiment of the present invention, the control unit 7 includes a storage unit 71 that stores the conveyance distance of the workpiece conveyance unit 3 and a conveyance distance acquisition unit that acquires the conveyance distance of the workpiece conveyance unit 3. 72, and the conveyance of the workpiece conveyance unit 3 is stopped when the conveyance distance stored in the storage unit 71 and the conveyance distance acquired by the conveyance distance acquisition unit 3 become the same. A press device can be provided.

  The press system according to an embodiment of the present invention includes the press device, a work material setting portion 2 for setting the work material 9, and a work material winding for winding the work material 9 pressed by the press device. Since the take-up unit 6 and the tension unit 5 that applies tension to the workpiece 9 wound around the workpiece take-up unit 6 are provided, it is possible to provide a press system with high accuracy and high productivity.

  In addition, although this embodiment showed and demonstrated the example regarding a circular laminated member, this invention is not limited by this embodiment. That is, in the description of the embodiment, many specific details are included for illustration, but various variations and modifications may be added to these details.

DESCRIPTION OF SYMBOLS 1 ... Press system 2 ... Work material installation part 3 ... Work material conveyance part 4 ... Press part 5 ... Tension part 6 ... Work material winding part 7 ... Control part 9 ... Work material

Claims (14)

A workpiece conveying section for conveying the workpiece;
A pressing unit for pressing the workpiece conveyed by the workpiece conveying unit;
A control unit for controlling a conveyance distance of the workpiece conveyed by the workpiece conveyance unit;
A press apparatus comprising: The press device according to claim 1, wherein the press unit includes a first punch and a second punch arranged side by side in a conveyance direction of the workpiece. The conveyance distance of the workpiece conveyance unit controlled by the control unit is longer than the distance from the rear end of the first punch to the tip of the second punch in the conveyance direction of the workpiece, The press apparatus according to claim 2, wherein the press apparatus is shorter than a distance from a rear end of one punch to a rear end of the second punch. The press device according to claim 3, wherein the control unit gradually increases the transport distance of the workpiece transport unit. The said control part makes the said conveyance distance of the said workpiece conveyance part the same distance predetermined times, and lengthens it in steps. The press device according to claim 4 or 5, wherein the control unit makes a pressing interval of the press unit constant and increases a transport speed of the workpiece transport unit. The press device according to claim 4 or 5, wherein the control unit makes the transport speed of the workpiece transport unit constant and slows the pressing interval of the press unit. The controller is
A storage unit for storing a conveyance distance of the workpiece conveying unit;
A conveyance distance acquisition unit for acquiring a conveyance distance of the workpiece conveying unit;
Have
The conveyance of the said workpiece conveyance part is stopped when the conveyance distance memorize | stored in the said memory | storage part and the conveyance distance acquired by the said conveyance distance acquisition part become the same, The Claims 3 thru | or 7 characterized by the above-mentioned. The press apparatus as described in any one. A press apparatus according to claim 1;
A workpiece setting portion for setting the workpiece;
A workpiece take-up unit that winds up the workpiece pressed by the press device;
A tension portion that applies tension to the workpiece wound around the workpiece winding portion;
A press system comprising: Pressing the workpiece with a first punch and a second punch arranged side by side in the conveying direction of the workpiece;
In the conveyance direction of the workpiece, the distance from the rear end of the first punch to the front end of the second punch is longer than the distance from the rear end of the first punch to the rear end of the second punch. Transporting short distances;
A step of punching the conveyed workpiece with the first punch so that a part of the workpiece punched with the second punch is overlapped with the first punch before the conveyance;
A press working method comprising the steps of: The press working method according to claim 10, wherein a distance that the workpiece is conveyed is gradually increased. 11. The press working method according to claim 10, wherein the distance that the workpiece is transported is the same distance a predetermined number of times and is increased stepwise. The press working method according to claim 11 or 12, wherein the pressing interval is constant, and the conveying speed of the workpiece is increased. The press working method according to claim 11 or 12, wherein a conveying speed of the workpiece is constant, and the pressing interval is slowed.

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