MACHINE FOR MANUFACTURING AN INSULATOR

Description

State of the art

[0001] Machines for manufacturing an insulator for an electric motor are known. Machines for positioning the insulator on a component of the electric motor are also known. One such machine is disclosed in CN 20 98 32 803 U.

[0002] One task in the manufacture of an insulator and the positioning of the insulator on the component of the electric motor is that a length of the insulator must be manufactured comparatively precisely and the insulator must be positioned comparatively precisely on the component of the electric motor in the direction of its length. Object and advantages of the invention

[0003] The object of the present invention is to propose an improved machine, an improved component of the machine, and an improved manufacturing method by means of which the manufacture of an insulator is simplified and / or by means of which the positioning of the insulator on the component of the electric motor is simplified. An improved insulator is also proposed.

[0004] The problem is solved by the features of the independent claims.

[0005] Advantageous and expedient embodiments of the invention are mentioned in the dependent claims.

[0006] The invention is based on a molding tool with a molding strip for forming an insulator, wherein the molding strip has a cuboid-shaped base body, wherein the base body has an upper side, wherein the molding strip has a first and a second deflection element, wherein the first and the second deflection element are provided on the upper side of the base body, projecting from the upper side of the base body, wherein the first deflection element is connected to the upper side of the base body by a lower side of the first deflection element, wherein the second deflection element is connected to the upper side of the base body by a lower side of the second deflection element, wherein the second deflection element is formed offset from the first deflection element on the base body, wherein the first deflection element has a first outer side, wherein the first deflection element has a second outer side,wherein the second outer side of the first deflection element is provided opposite the first outer side of the first deflection element, wherein the first and second outer sides of the first deflection element converge on a front side of the first deflection element, such that the first deflection element has an edge on the front side of the first deflection element, wherein the second outer side of the first deflection element extends away from the first outer side of the first deflection element, viewed in the thrust direction of the insulator, such that the first deflection element widens starting from the front side of the first deflection element, wherein the second deflection element has a first outer side, wherein the second deflection element has a second outer side, wherein the second outer side of the second deflection element is provided opposite the first outer side of the second deflection element,wherein the first and second outer sides of the second deflection element converge on a front side of the second deflection element, such that the second deflection element has an edge on the front side of the second deflection element, wherein the second outer side of the second deflection element extends away from the first outer side of the second deflection element, viewed in the pushing direction of the insulator, starting from the front side of the second deflection element, such that the second deflection element widens in the pushing direction, viewed starting from the front side of the second deflection element, wherein the shaped strip is provided in such a way that in a forming process of the insulator, in which the insulator is pushed in the pushing direction over the first and second deflection elements, firstly one end of a first side of the insulator is pushed along the second outer side of the first deflection element in the pushing direction,The first deflection element bends the first side of the insulator along a first desired line of the insulator, and then an end of a second side of the insulator is pushed along the second outer side of the second deflection element in the pushing direction, the second deflection element bending the second side along a second desired line of the insulator. This simplifies the manufacture of the insulator.

[0007] For example, the molded strip is made of metal. It is conceivable that the molded strip is formed as a single piece. For example, the first and second deflection elements are integrally formed on the base body. For example, the first and / or second deflection elements are formed as a single piece with the base body.

[0008] For example, a starting material of the insulator, e.g. an insulator material, is moved in a pushing direction of the insulator along the mold bar to produce the insulator, whereby a deformation of the starting material of the insulator towards a final shape of the insulator occurs due to an interaction of the insulator with the mold bar.

[0009] For example, the first and second deflection elements are designed as webs protruding from the top side of the base body. For example, the deflection elements extend along a length on the base body. For example, a length of a deflection element extends in the shear direction of the insulator. For example, the first outer side of the first deflection element extends in the shear direction of the insulator, e.g., the first outer side of the first deflection element is vertically aligned. For example, viewed in a shear direction of the insulator during the forming process, the second deflection element is offset from the first deflection element on the base body. For example, the first outer side of the second deflection element extends in the shear direction of the insulator, e.g., the first outer side of the second deflection element is vertically aligned.For example, the first outer side of the first deflection element and the first outer side of the second deflection element are aligned parallel to each other and offset from each other on the molding.

[0010] For example, the base body of the molding strip has a first side surface, a second side surface, two end faces, a bottom side, and a top side. For example, the top side extends in a horizontal plane. For example, the base body of the molding strip has two opposite and spaced-apart side surfaces. It is conceivable for the base body to have two opposite and spaced-apart end faces. It is also conceivable for each of the two side surfaces to be aligned transversely to each of the two end faces. For example, the base body has a bottom side and a top side, wherein the bottom side, the top side, and the two side surfaces extend along the longitudinal axis of the base body. For example, the top side is opposite and spaced from the bottom side.For example, a side surface of the base body connects at one end to a first of the two end faces of the base body, and at a second end of the side surface connects to a second of the two end faces of the base body. For example, the end faces of the base body are aligned transversely to the longitudinal axis of the base body.

[0011] For example, the first and second deflection elements extend along their lengths along the longitudinal axis of the base body. For example, each of the undersides of the first and second deflection elements extends along the length of the deflection element in the direction of a longitudinal extension of the base body and across a width of the deflection element in the direction of a width extension of the base body.

[0012] For example, the first outer side of the first deflecting element and the first side surface of the base body extend in the same plane. For example, the first outer side of the second deflecting element and the second side surface of the base body extend in the same plane. For example, the first outer side of the first deflecting element and the first outer side of the second deflecting element are spaced apart across the width of the base body.

[0013] It is further proposed that the first deflecting element has a first spring element on an upper side of the first deflecting element, which spring element is provided so as to protrude from the upper side of the first deflecting element, wherein the first spring element extends on the first deflecting element as seen in the shear direction of the insulator, wherein a spring element front side of the first spring element is provided at a distance from the edge of the first deflecting element, wherein a spring element upper side of the first spring element, as seen in the shear direction, runs away from the upper side of the first deflecting element, such that during the forming process of the insulator, an outer edge of the folded end of the first side of the insulator rests against a first spring element outer side of the first spring element. This simplifies production of the insulator.

[0014] For example, the second deflection element has a second spring element on an upper side of the second deflection element, which is provided so as to protrude from the upper side of the second deflection element, wherein the second spring element extends on the second deflection element as seen in the direction of shear of the insulator, wherein a spring element front side of the second spring element is provided at a distance from the edge of the second deflection element, wherein a spring element upper side of the second spring element, as seen in the direction of shear, runs away from the upper side of the second deflection element from the upper side of the second deflection element, so that during the forming process of the insulator, an outer edge of the folded end of the second side of the insulator rests against a first spring element outer side of the second spring element.

[0015] For example, the spring element upper sides and / or the first spring element outer sides of the first and second spring elements extend along the longitudinal axis of the base body and / or along a longitudinal extension of the first or second deflection element.

[0016] For example, an extension plane of the first spring element outer side of the first and / or second spring element is oriented parallel to the plane of the first or second side surface of the base body. For example, an extension plane of the first spring element outer side of the first and / or second spring element is spaced apart from the plane of the first or second side surface of the base body in the width direction of the base body. For example, the extension plane of the first spring element outer side of the first and / or second spring element is spaced apart from the plane of the first outer side of the first or second deflection element in the width direction of the base body.

[0017] For example, the first spring element has a second spring element outer side. For example, the second spring element has a second spring element outer side. For example, the first and second spring element outer sides of the first spring element are spaced from one another across a width of the first spring element. For example, the first and second spring element outer sides of the second spring element are spaced from one another across a width of the second spring element. It is conceivable for the first and second spring elements to be of equal width. For example, the second spring element outer side of the first spring element and the first spring element outer side of the second spring element extend in a common first plane. For example, the second spring element outer side of the second spring element and the first spring element outer side of the first spring element extend in a common second plane.For example, the common first plane and the common second plane are spaced apart from each other across the width of the first and / or the width of the second spring element. It is conceivable that the common first plane and the common second plane are aligned parallel to each other.

[0018] It is also proposed that the molded strip have a fastening element on the base body to secure the molded strip to a molding tool. This allows for comparatively simple assembly of the molded strip to a molding tool.

[0019] For example, the fastening element is designed as a through-hole. For example, the through-hole extends along the width of the base body from one side surface to the other side surface of the base body. For example, the molded strip has two, three, or more fastening elements. It is also conceivable for the fastening element to be in the form of a pin, a bolt, or an internal thread.

[0020] According to the invention, the molding tool comprises a push bar, wherein the push bar is cuboid-shaped and extends along a longitudinal axis of the push bar, wherein at a first end of the push bar, push bar outer sides of the push bar, which extend along the longitudinal axis, are offset inwards, so that the insulator can be pushed over the inwardly offset push bar outer sides, wherein the insulator can be arranged adjacent to the inwardly offset push bar outer sides, wherein in the transition from the inwardly offset push bar outer sides to the remaining push bar outer sides, a stop is formed at a second end of the push bar, against which stop the insulator rests with an end face of the insulator in the arranged state, so that the insulator can be moved with the push bar along the molding bar in the pushing direction of the insulator and in the direction of the extension of the longitudinal axis of the push bar,to reshape the insulator using the molded strip. This creates a comparatively flexible or universal molding tool.

[0021] According to the invention, the molding tool has a push bar. It is conceivable that the molding tool has a drive for moving the push bar. For example, the drive is provided in such a way that the push bar can be moved along the longitudinal axis of the push bar. For example, the push bar can be moved back and forth along the longitudinal axis of the push bar. For example, an insulator arranged on the push bar can be moved by the push bar along the insulator's pushing direction.

[0022] For example, the molding tool has a holder on which the shaped bar is arranged. For example, the holder comprises a guide by means of which the push bar is mounted on the holder, guided along the longitudinal axis of the push bar. For example, the drive is present on the holder. It is conceivable that the holder forms a cavity in which the shaped bar is located and in which the push bar is movably guided. For example, sides of the cavity form a guide for an insulator arranged on the push bar when the insulator is moved along the shaped bar by the push bar.

[0023] It is also proposed that the push bar extends in length, width and height, wherein the length is greater than the height and the height is greater than the width, wherein the push bar has two large push bar outer sides which extend in height and length, wherein the push bar has a first and a second small push bar outer side which extend in width and length, wherein a first small push bar outer side has a recess at the first end which extends along a longitudinal axis of the push bar, such that during the forming process of the insulator the folded ends of the first and second sides of the insulator can engage in the recess. This advantageously prevents tilting of the insulator or tilting of the starting material of the insulator during the forming process.

[0024] For example, the recess in the push bar extends along the longitudinal axis over a length that is greater than the length of the insulator. For example, the recess in the push bar extends from an end face of the push bar at the first end of the push bar to the stop of the push bar. For example, the recess in the push bar extends from an end face of the push bar at the first end of the push bar to at least the stop of the push bar. For example, the recess in the push bar extends over the entire length of the push bar. For example, the recess in the push bar extends from the end face at the first end of the push bar to an end face of the push bar at the second end of the push bar.

[0025] For example, the recess of the push bar is designed as a groove, a notch, or a notch. For example, the shaped bar and the push bar are mounted on the mount in such a way that, during a forming process of the insulator, the first and / or second spring element engages in the recess of the push bar. For example, the shaped bar and the push bar are mounted on the mount in such a way that, during a forming process of the insulator, the bent end of the first side of the insulator and / or the bent end of the second side of the insulator engages in the recess of the push bar.

[0026] For example, an extension element is arranged at the second end of the push bar, e.g., integral with the push bar. It is also conceivable for the extension element to be designed as a drive rod, which engages the front end of the second end of the push bar.

[0027] It is conceivable that an outer side at the second end of the push bar, where the recess is present, rests at least partially against the upper side of the first deflecting element and / or the upper side of the second deflecting element during the insulator forming process. It is conceivable that the outer side of the push bar, where the recess is present, is guided at least partially by the upper side of the first deflecting element and / or by the upper side of the second deflecting element during the insulator forming process.

[0028] In another conceivable embodiment, a transfer tool is proposed, wherein the transfer tool comprises a molding tool according to one of the previously mentioned embodiments, wherein the transfer tool comprises a transfer magazine, wherein the transfer magazine extends in a longitudinal direction, wherein the transfer magazine has a cavity into which the insulator can be inserted by means of the sliding bar in the longitudinal direction of the transfer magazine, wherein the cavity is tapered in the longitudinal direction. This enables the insulator to be transferred into a stator receptacle.

[0029] It is conceivable that the stator receptacle is designed as a stator slot. It is conceivable that the stator is provided in such a way that a single insulator can be inserted into the stator receptacle, or two or more insulators can be inserted.

[0030] Advantageously, the transfer tool is designed to be arranged directly on the holder, so that the push bar can push the insulator into the cavity of the transfer tool in the pushing direction of the insulator after the forming process, in which the push bar has moved the insulator along the forming bar.

[0031] For example, the transfer magazine comprises exactly two cavities. For example, both cavities are identically designed. It is conceivable that the transfer tool is movably mounted so that the two cavities can be alternately moved toward the mold holder. For example, the transfer tool comprises a motor to move the transfer tool. It is also conceivable that the transfer magazine has two or more cavities.

[0032] It is further proposed that the cavity of the transfer magazine has a first and a second narrow cavity side, wherein the cavity has a first and a second wide cavity side, wherein a first spring element is present on a first inner side of the first wide cavity side of the cavity, protruding from the first inner side, wherein the first spring element extends over the longitudinal extent of the cavity, such that during the insertion process of the insulator into the cavity, a first side of the insulator is deformed into the cavity interior by the first spring element. As a result, the insulator is deformable in such a way that insertion of the insulator into the stator receptacle is possible.

[0033] For example, on a second inner side of the second wide cavity side, a second spring element is provided, projecting from the second inner side, wherein the second spring element extends over the longitudinal extent of the cavity, so that during the insertion process of the insulator into the cavity, a second side of the insulator is deformed into the cavity interior by the second spring element.

[0034] For example, the first and second spring elements are located opposite each other and spaced apart within the cavity. It is conceivable that the two narrow cavity sides and the two wide cavity sides of the transfer magazine define the cavity, with the cavity having two end faces, the end faces being open, so that an insulator can be moved into and / or out of the cavity.

[0035] It is conceivable that the transfer tool is formed from two or more parts that are connected to each other to form the cavity of the transfer tool. This simplifies the manufacture of the transfer tool.

[0036] It is also proposed that at an end section of the cavity on the first narrow cavity side, a third spring element protruding from an inner side of the first narrow cavity side is provided, wherein at the end section of the cavity on the second narrow cavity side, a fourth spring element protruding from an inner side of the second narrow cavity side is provided, wherein the third and fourth spring elements extend in the longitudinal extent of the cavity, such that a third side of the insulator is deformed into the cavity interior by the third spring element and a fourth side of the insulator is deformed into the cavity interior by the fourth spring element. As a result, the insulator, when inserted into the transmission tool, is tapered or reduced in size such that the insulator can be inserted into a receptacle of a stator.

[0037] For example, a spring element is formed as a raised portion or a projection on one side of the cavity. For example, the spring element is provided in a strip-like configuration, e.g., as a strip. For example, the spring elements are provided tapered. It is conceivable that the spring elements are provided tapering toward the end face of the cavity at the end section of the cavity into the interior of the cavity.

[0038] An exemplary embodiment of the invention is a machine for producing an insulator, wherein the machine comprises a transfer tool according to one of the aforementioned embodiments and / or wherein the machine comprises a molding strip according to one of the aforementioned embodiments and / or wherein the machine comprises a molding tool according to one of the aforementioned embodiments. This enables the automatic production of one or more insulators.

[0039] It is also proposed that the machine include a material magazine, an embossing device, a punching device, a flanging device, a transport device, and / or a forming device. It is conceivable that the material magazine, the embossing device, the punching device, the flanging device, the transport device, and / or the forming device are attached to a frame of the machine. It is conceivable that the material magazine, the embossing device, the punching device, the flanging device, the transport device, and / or the forming device are arranged one behind the other on the frame, viewed in a feed direction of an insulating material to be processed by means of the aforementioned elements.

[0040] It is conceivable that the forming device is part of the forming tool.

[0041] According to the invention, a manufacturing method for producing an insulator using a mold according to one of the above-mentioned embodiments and / or using a machine according to one of the above-mentioned embodiments is proposed, wherein the manufacturing method comprises the following method steps: Unwinding insulator material from a roll of insulator material in a feed direction, wherein the roll of insulator material is movably held in the material magazine, embossing a first bead along the feed direction into the unwound insulator material by a first embossing device, punching out material from the unwound insulator material so that insulator material is removed in the region of an outer edge of the insulator material, folding over the material remaining after the punching process in the region of the outer edge of the insulator material around the first bead embossed in the feed direction, embossing a second bead transversely to the feed direction into the insulator material by a second embossing device, cutting off one end of the unwound insulator material transversely to the feed direction so that an insulator is cut off, forming the insulator by the forming tool, inserting the formed insulator in the feed direction into the transfer tool.

[0042] Preferably, the aforementioned process steps are carried out in exactly the order in which they were listed above. However, it is also conceivable that the order of the process steps could be reversed.

[0043] For example, a roll of insulating material can be rotatably mounted on the material magazine, allowing insulating material to be unwound from the roll. It is conceivable that the insulating material is wound onto the roll of insulating material. For example, the insulating material is in strip form. For example, the machine includes a transport device for unwinding the insulating material from the roll of insulating material in a feed direction and conveying it through the machine.

[0044] It is conceivable that the following machine units are present in sequence, viewed in the feed direction of the insulator material: material magazine, first embossing device, punching device, flanging device, first transport device, second embossing device, second transport device, forming device. It is also conceivable that the units are present on the machine in a different order than the one previously mentioned. It is also conceivable that only one transport device or more than two transport devices are present on the machine.

[0045] It is conceivable that an insulator is severed from the strip-shaped insulator material transversely to the feed direction of the insulator material. For example, a longitudinal axis of the insulator is present transversely to the feed direction of the insulator material. It is also conceivable that the severed insulator is moved in the direction of its longitudinal axis in a feed direction of the insulator. It is conceivable that a width of the strip-shaped insulator material defines a total length of the insulator. For example, the total length of the insulator can be seen before the cut insulator or the cut insulator material is formed by the flanging device.

[0046] For example, the insulator material is unwound from the insulator material roll and moved through the machines in the feed direction of the insulator material by means of the transport device. For example, after unwinding, a first embossing device creates a transverse bead in the insulator material in the feed direction of the insulator material in the region of an outer edge of the insulator material. For example, material is then punched out of the insulator material in the region of the outer edge. For example, a punching point extends along a section of the transverse bead or along several sections of the transverse bead. For example, the insulator material remaining in the region of the outer edge is then bent over at the transverse bead by the flanging device. For example, the remaining insulator material in the region of the outer edge is aligned parallel to the insulator material in the flanged state.By flanging the remaining insulator material in the outer edge area, the insulator is comparatively stiffened in this area.

[0047] It is also conceivable that four longitudinal beads are subsequently introduced into the insulator material using a further embossing device. It is conceivable that the four longitudinal beads extend transversely to the feed direction of the insulator material. It is conceivable that each of the four longitudinal beads is spaced from the remaining three longitudinal beads. For example, the longitudinal beads are aligned parallel to one another. For example, a longitudinal bead is present as a target line of the insulator. For example, a distance between a first and a second of the four longitudinal beads in the feed direction defines a width of the insulator. For example, a distance between the second longitudinal bead and a third longitudinal bead of the four longitudinal beads in the feed direction defines a height of the insulator.It is conceivable that a distance from the third longitudinal bead to a fourth longitudinal bead of the four longitudinal beadings seen in the feed direction is a width of the insulator.

[0048] It is also conceivable that two longitudinal beads are present as the insulator's nominal lines. For example, the two longitudinal beads that are present as the insulator's nominal lines enclose the two remaining longitudinal beads of the four longitudinal beads, viewed in the feed direction of the insulator material. For example, the first and fourth longitudinal beads are formed as one nominal line. It is also conceivable that all four longitudinal beads are present as nominal lines, with the insulator material being bent or folded at the nominal lines by the forming tool to produce the insulator in its final state.

[0049] It is also conceivable that the punched and embossed area of ​​the insulator material is subsequently transported to the forming tool. For example, the punched and embossed area of ​​the insulator material is transported to the forming tool by means of the transport device. For example, the punched and embossed area of ​​the insulator material is separated by the forming tool transversely to the feed direction of the insulator material. For example, a separating line, along which the punched and embossed area of ​​the insulator material is separated, is present parallel to the longitudinal beads of the punched and embossed area of ​​the insulator material. It is also conceivable that subsequently or simultaneously the punched and embossed area of ​​the insulator material is flanged or bent by the forming tool along two of the longitudinal beads.For example, after or simultaneously with the separation, the insulator material is bent by the forming tool in the area of ​​the second longitudinal bead and in the area of ​​the third longitudinal bead. For example, the punched and embossed area of ​​the insulator material is U-shaped after separation and forming. For example, after separation, the insulator is manufactured from the separated, punched, and embossed insulator material using the forming tool.

[0050] It is also proposed that the process step of forming the insulator by the forming tool comprises the following process steps: Forming the insulator with the forming tool so that the insulator is U-shaped, Sliding the insulator onto the push bar so that the insulator rests against the stop of the push bar with the front side of the insulator, Moving the insulator in the pushing direction of the insulator with the push bar so that the insulator is moved along the top side of the forming bar, Forming one end of the first side of the insulator and one end of the second side of the insulator with the forming tool.

[0051] For example, the separated insulator material, which in its final state forms the insulator, is pushed onto the push bar after being formed into a U-shape. For this purpose, the push bar is moved from an initial position towards the insulator in the feed direction of the insulator until the insulator, with the flanged area, rests against the stop of the push bar. It is also conceivable that the push bar and the insulator are then moved further in the feed direction of the insulator. It is conceivable that the push bar moves the insulator in the feed direction along the shaped bar so that the first and second ends of the insulator are each bent along a longitudinal bead. For example, the first end of the insulator is bent along the first longitudinal bead. It is conceivable that the second end of the insulator is bent along the fourth longitudinal bead.For example, the bent first and second ends of the insulator overlap in the bent state.

[0052] For example, the push bar then moves the insulator further in the feed direction toward the transfer tool and inserts the insulator into the transfer tool. It is also conceivable that the push bar is then moved counter to the feed direction of the insulator, with the insulator remaining in the transfer tool. For example, the push bar is then moved back against the feed direction to its starting position.

[0053] For example, the transfer tool with the insulator is moved toward a stator. It is also conceivable that, with the transfer tool mounted on the stator, the insulator is moved from the transfer tool into a stator slot of the stator by a movement of an ejector of the machine. For example, the ejector is moved into the transfer tool in the feed direction of the insulator, whereby the insulator rests against the ejector and is moved along with the ejector in the feed direction. It is conceivable that the insulator is moved by the ejector into the stator slot until its flanged outer edge rests against an outer surface of the stator.

[0054] In a further conceivable embodiment, an insulator is proposed which was manufactured using a manufacturing method according to one of the preceding embodiments.

[0055] For example, the insulator extends in length, width, and height. It is conceivable for the insulator to be formed in one piece. For example, the insulator has a first and a second narrow side and a first and a second long side. For example, the narrow sides extend along the length and height of the insulator. For example, the long sides extend along the length and width of the insulator.

[0056] It is also conceivable for the insulator to have four longitudinal beads extending along the insulator's longitudinal axis. For example, the longitudinal axis extends along the length of the insulator. For example, the insulator is bent along the four longitudinal beads, so that edges of the insulator are formed along the longitudinal beads.

[0057] For example, a first short end of the insulator of a first side is bent over at a first of the longitudinal beads. For example, a second short end of the insulator of a second side is bent over at a fourth of the longitudinal beads. For example, the first and second short ends are present in an overlapping manner. It is conceivable that the first and second short ends extend along the length and height of the insulator and form a narrow side surface of the insulator. It is conceivable that the first and second short ends of the insulator together, e.g. overlapping, form a narrow side surface of the insulator.

[0058] For example, the insulator has a transverse bead. It is conceivable that the transverse bead extends along the height and width. It is conceivable that the insulator has a tab that is connected to the remaining insulator in the area of ​​the transverse bead, with the tab being bent at the transverse bead so that the tab overlaps with the remaining insulator. This makes the insulator more reinforced in the area of ​​the tab.

[0059] It is conceivable that the insulator is rectangular before forming along the longitudinal and transverse corrugations, with two edges of the rectangular insulator extending along the length of the insulator when bent, and two further edges of the rectangular insulator extending along the width and height of the insulator when bent. The flag is present on one of the edges, which extend along the width and height of the insulator when bent.

[0060] It is conceivable that the insulator, when mounted on the stator, rests or protrudes with the tab on an outer side of the stator. This allows for a comparatively simple and comparatively precise positioning of the insulator in a stator slot. It is also conceivable that the tab has the second and third longitudinal beads and, in the final state of the insulator, is bent at the longitudinal beads. Character description

[0061] Several embodiments are explained in more detail with reference to the following drawings, giving further details and advantages: They show: Figure 1 shows a top view of a machine with a transfer tool arranged thereon. Figure 2 shows an enlarged view of a section of a top view of the machine with the devices arranged thereon. Figure 3 shows a perspective view from an oblique side view from above of a material magazine with an insulator material roll arranged thereon. Figure 4 shows an oblique side view from the front of an embossing device for embossing a transverse bead. Figure 5 shows an oblique side view from the front of a punching device. Figure 6 shows an oblique side view from the front of another embossing device for embossing a longitudinal bead. Figure 7 shows an oblique side view from the front of a transport device. Figure 8 shows an oblique side view from the front of a forming device. Figure 9 shows an oblique side view from the front of a transfer tool. Figure 10 shows an oblique side view from above of a stator with insulators inserted into the stator slots.Figure 11 a view from the side at the bottom of the forming tool with the molding strip arranged, Figure 12 a view from the side at the front at the top of a molding strip, Figure 13 a view from the side at the front at the top of the molding strip according to , Figure 12 , Figure 14 a view from the front at the top of a molding strip with a push bar and an insulator arranged thereon, Figure 15 a view from the bottom of the side of a molding tool with a molding strip and insulator arranged thereon, with parts of the molding tool being hidden, Figure 16 the molding tool according to Figure 15, wherein the insulator is provided in the pushing direction of the insulator along the forming tool so that one end of a first side of the insulator is bent over, Figure 17 shows a further view obliquely from below on the forming tool with the forming strip and insulator arranged thereon, wherein parts of the forming tool are hidden, wherein the insulator is relative to the position according to Figure 16 in the direction of thrust of the insulator is present, so that the end of the first side of the insulator is located on a spring element outside of the molding strip, Figure 18 a further view obliquely from below on the molding tool with the molding strip and insulator arranged thereon, with parts of the molding tool being hidden, with the insulator relative to the position according to Figure 17is further moved in the pushing direction of the insulator, so that one end of a second side of the insulator rests against a second deflection element of the molded strip, Figure 19 is a further view obliquely from the bottom side of the molding tool with the molded strip and insulator arranged thereon, wherein parts of the molding tool are hidden, wherein the insulator is further moved in the pushing direction of the insulator, so that ends of the first and the second side of the insulator are bent over, Figure 20 is a perspective view obliquely from the front side of a pushing strip with an insulator arranged thereon, Figure 21 is a perspective view obliquely from the top side of a section of the pushing strip according to Figure 20with an insulator arranged thereon, Figure 22 a perspective section from an oblique side view of an ejector, Figure 23 a perspective view from an oblique side view of a transfer magazine of a transfer tool and Figure 14 a perspective view from an oblique side view of one half of the transfer magazine according to Figure 23 .

[0062] In Figure 1 A plan view of a machine 1 is shown. On the machine 1, a material magazine 2, a first embossing device 3, a punching device 4, a flanging device 5, a first transport device 6, a second embossing device 7, a second transport device 8, a forming device 9, a transfer tool 10, and a stator 11 are arranged on a frame 12 of the machine 1.

[0063] In the following, the same reference symbols are used for identical elements which may be designed differently, for ease of understanding.

[0064] In Figure 3 The material magazine 2 is shown with the insulating material roll 13 arranged thereon. One end 14 of the insulating material 15 of the insulating material roll 13 is threaded through the machine 1, past the individual devices of the machine 1, and ends at the forming device 9 (see also Figure 2 ). The insulation material roll 13 is rotatably mounted on the material magazine.

[0065] In Figure 4 The first embossing device 3 is shown. By means of the embossing device 3, a transverse bead 16 is introduced into the insulating material 15 in the region of an outer edge 17 of the insulating material 15. For example, the transverse bead 16 can be seen as a desired line. As a result, the insulating material 15 can be folded or bent comparatively easily around the transverse bead 16 in the region of the transverse bead 16.

[0066] In Figure 5, the punching device 4 is shown, which removes a portion of the outer edge 17 of the insulating material 15 in sections up to the transverse bead 16, so that tabs 18 remain in the region of the outer edge 17 of the insulating material 15. The tabs 18 are bent along the transverse bead 16 as a folded edge using the flanging device 5, so that a length L2 of the insulating material 15, after bending, extends from a second outer edge 19 to the transverse bead 16. For example, the insulating material 15 has a length L1 in the wound state on the insulating material roll, where L1 is greater than L2.

[0067] In Figure 6 The second embossing device 7 is shown. By means of the second embossing device 7, longitudinal beads are introduced into the insulating material 15. For example, the longitudinal beads extend along a length of the insulating material 15.

[0068] In Figure 7The second transport device 8 is shown. By means of the second transport device 8, the insulating material 15 is unwound from the insulating material roll 13 along a feed direction V1 of the insulating material 15 and transported through the machine 1 to the forming device 9.

[0069] In Figure 8 The forming device 9 is shown. By means of the forming device 9, the area of ​​the end 14 of the insulator material 15 is separated from the remaining insulator material 15. For example, the separated insulator material - the insulator - is simultaneously bent along the longitudinal beads introduced by the second embossing device 7 (in Figure 8 not shown).

[0070] In Figure 9The transfer tool 10 is shown. For example, two transfer magazines 20, 21 are arranged on the transfer tool 10. For example, the transfer magazines 20, 21 are rotatably mounted by means of a motor 22 of the transfer tool 10. For example, an insulator can be moved from the forming device 9, which has a forming tool 23, into a transfer magazine 20, 21. For example, the two transfer magazines 20, 21 are identically designed.

[0071] The transfer magazine 20 has a cavity 40 (see Figures 23, 24). For example, the transfer magazine 20 is composed of at least two transfer magazine parts 41, 42. This simplifies the manufacture of the transfer magazine 20. It is also conceivable for the transfer magazine 20 to consist of more than two transfer magazine parts 41, 42. In contrast, however, it is also conceivable for the transfer magazine 20 to be formed in one piece. It is conceivable, for example, that the transfer magazine is manufactured using a 3D printing process.

[0072] For example, the cavity 40 of the transfer magazine 20 tapers conically along its longitudinal axis LÜ from a first end face 43 to a second end face 44. For example, the first and second end faces 43, 44 are opposite one another and spaced apart from one another. It is conceivable for the cavity 40 to be open at the first and second end faces 43, 44, so that an insulator 25 can be inserted into the cavity 40 at the first end face 43 along the longitudinal axis LÜ of the transfer magazine 20 and can be moved out of the cavity 40 at the second end face 44.

[0073] For example, the cavity 40 of the transfer magazine 20 has a first and a second narrow cavity inner side 45, 46 and a first and a second wide cavity inner side 47, 48. It is further conceivable that a spring element 49, 50 is formed on each of the two wide cavity inner sides 47, 48, which spring element protrudes from the wide cavity inner side 47, 48. For example, each of the spring elements 49, 50 present on the wide cavity inner sides 47, 48 runs continuously from the first end face to the second end face 43, 44 of the cavity 40. It is also conceivable that the spring elements 49, 50 are spaced apart from one another and are formed opposite one another. It is further conceivable that the spring elements 49, 50 are present along the longitudinal axis LU of the transfer magazine 20 from the first to the second end face 43, 44 in a conical manner.

[0074] For example, at an end section 51 of the cavity 40 in the region of the second end face 44, a further spring element 52, 53 is formed on each of the narrow cavity inner sides 45, 46. It is conceivable that the spring elements 52, 53 are spaced apart from one another and arranged opposite one another. It is also conceivable that the spring elements 52, 53 are arranged conically along the longitudinal axis LU of the transfer magazine 20 toward the second end face 44.

[0075] In Figure 10 The stator 11 is shown. For example, the stator 11 comprises several stator slots 24. For example, insulators 25 can be inserted into the stator slots 24 by the transfer tool 10. In Figure 10 As an example, a stator 11 partially provided with insulators 25 is shown.

[0076] For example, when the insulators 25 are fully inserted into the stator slots 24, each insulator 25 rests with its lug 18 on an outer side 26 of the stator 11.

[0077] In Figure 14 is shown schematically an arrangement of a molded strip 27 and a sliding strip 28 with an insulator 25 arranged thereon. In Figure 14 The beginning of the insulator 25 moving past the molded strip 27 is shown. According to the invention, the insulator 25 is moved past the molded strip 27 in the pushing direction S of the insulator 25 by means of the pushing strip 28.

[0078] According to the invention, the push bar 28 comprises a first end 29 and a second end 30 (see also Figures 20 and 21). For example, the push bar 28 is connected at the second end 30 to an extension element 31. For example, a distance between the push bar outer sides 32 to 35 at the first end 29 is smaller than a distance between the push bar outer sides 32 to 35 at the second end 30. According to the invention, a stop 36 is formed on the push bar 28 at the transition from the first to the second end 29, 30. According to the invention, the insulator 25 abuts the stop 36 with the outer edge 17 in the arranged state. As a result, the insulator 25 can be moved by means of the push bar 28 in the pushing direction S of the insulator along a longitudinal axis LS of the push bar 28.

[0079] It is conceivable that the push bar has a recess 37 on the narrow outer side 35. For example, during the forming process, ends 38, 39 of the insulator 25 can be moved into the recesses 37 by means of the shaped bar 27.

[0080] In the Figures 12 and 13The molded strip 27 is shown. The molded strip 27 has a base body 54. For example, the base body 54 comprises a top side 55, a first and a second end face 56, 57, a first and a second side surface 58, 59, and a bottom side 60. It is also conceivable that fastening elements 61 are present on the base body 54 in order to fasten the molded strip to a receptacle 62 of a molding tool 63. It is conceivable that the base body extends in a length LG, a height HG, and a width BG.

[0081] For example, the forming tool 63 is part of the transfer tool 10.

[0082] On the upper side 55 of the base body 54, the shaped strip 27 has a first and a second deflection element 64, 65. Both the first and the second deflection element 64, 65 rest against the upper side 55 with an underside of the deflection elements 64, 65. It is conceivable that the first and the second deflection elements 64, 65 are present in one piece with the base body 54. Each of the deflection elements 64, 65 comprises a first and a second outer side 66 to 69. According to the invention, the first outer side 66 and the second outer side 67 of the first deflection element 64 converge on a front side 70 of the first deflection element 64, such that the first deflection element 64 has an edge 71 on the front side 70. According to the invention, the first outer side 68 and the second outer side 69 of the second deflection element 65 converge on a front side 72 of the second deflection element 65, so that the second deflection element 65 has an edge 73 on the front side 72.

[0083] For example, the first deflection element 64 has an upper side 74. It is conceivable that the second deflection element 65 has an upper side 75.

[0084] For example, a first spring member 76 is formed on the upper side 74 of the first deflecting element 64. For example, a second spring member 77 is formed on the upper side 75 of the first deflecting element 65. For example, the spring members 76, 77 are integrally formed with the base body 54 of the molding strip 27.

[0085] For example, the first spring member 76 has a first and a second spring member outer side 78, 79. For example, the second spring member 77 has a first and a second

[0086] Spring element outer side 80, 81. It is also conceivable for the first spring element 76 to have a first spring element upper side 82 and the second spring element 77 to have a second spring element upper side 83. For example, a spring element front side 84 of the first spring element 76 is provided, extending away from the upper side 74 and projecting. For example, a spring element front side 85 of the second spring element 77 is provided, extending away from the upper side 75 and projecting.

[0087] In the Figures 16 to 19 and 11 The sequence of movement of the insulator 25 along the molded strip 27 is shown. Figures 16 to 19 The molding tool 63, in particular a receptacle 62 of the molding tool 63, is partially shown. Figures 16 to 19 The sliding bar, which moves the insulator 25 along the shaped bar 27, is not shown. For example, a guide in the form of a guide web 86 is provided on the receptacle 62.

[0088] In a first step, the insulator 25 is moved towards the molding strip, so that the insulator 25 rests with the first end 38 on the first deflection element 64 on the second outer side 67 and is bent by this along a desired line - a longitudinal bead - inwards towards the second end 39 ( Figure 16 ). Here, the first end 38 rests against the upper side 74 and rests with an outer edge on the first spring element outer side 78 of the first spring element 76. For example, the first end 38 is bent away from the second end 39 by the first spring element outer side 47 ( Figure 17 ).

[0089] In a next step, the insulator 25 is moved with the second end 39 towards the second deflection element 65, so that the second end 39 is in contact with the second outer side 69 and is bent by this along a desired line - a longitudinal bead - inwards towards the first end 38 ( Figure 18). Here, the second end 39 rests against the upper side 75 and rests with an outer edge on the first spring element outer side 80 of the second spring element 77. For example, the second end 39 is bent away from the first end 38 by the first spring element outer side 80 ( Figure 19 ). As a result, the outer edges of the first and second ends 38, 39 are spaced apart from one another across a width of the first and / or second spring members 76, 77. This also prevents the insulator 25 from tilting during the molding process on the molded strip 27.

[0090] In Figure 22 An ejector 87 is shown. For example, the ejector 87 includes recesses 88, 89 into which the spring elements 49, 50, 52, 53 of the transfer magazine 20 can engage. List of reference symbols

[0091] 1 machine 39 End 2 Material magazine 40 cavity 3 Embossing device 41, 42 Transfer magazine part 4 Punching device 5 flaring device 43, 44 front side 6 Transport device 45-48 cavity inside 7 Embossing device 49, 50 spring element 8 Transport device 51 final section 9 Forming device 52, 53 spring element 10 Transfer tool 54 Basic body 11 stator 55 Top 12 frame 56, 57 front side 13 Insulator material roll 58, 59 side surface 60 bottom 14 End 61 Fastening element 15 Insulator material 62 Recording 16 Cross-beading 63 mold tool 17 outer edge 64, 65 deflection element 18 banner 66-69 outside 19 outer edge 70, 72 front 20, 21 Transmission magazine 71, 73 edge 22 Motor 74, 75 Top 23 mold tool 76, 77 spring organ 24 Stator slot 78-81 Spring organ outside 25 insulator 82, 83 Spring organ top 26 outside 84, 85 Spring organ front 27 molding 28 drawer bar 86 Guide bridge 29, 30 End 87 ejector 31 Extension element 88, 89 recess 32-35 Drawer strip outside 36 stop 37 Deepening 38 End

Claims

1. Shaping tool (63) having a shaping strip (27) for forming an insulator (25), characterized in that the shaping tool (63) has a thrust strip (28), wherein the thrust strip (28) is designed to be cuboid and extends along a longitudinal axis, wherein thrust strip external sides (32 - 35) of the thrust strip (28) that extend along the longitudinal axis are present on a first end (29) of the thrust strip (28) so as to be inwardly offset in such a way that the insulator (25) can be pushed over the inwardly offset thrust strip external sides (32 - 35), wherein the insulator (25) can be disposed so as to bear on the inwardly offset thrust strip external sides (32 - 35), wherein a detent (36), on which the insulator (25) rests by way of an end side (17) of the insulator (25) in the disposed state, is formed on a second end (30) of the thrust strip (28) in the transition from the inwardly offset thrust strip external sides (32 - 35) to the remaining thrust strip external sides (32 - 35) in such a way that the insulator (25) by way of the thrust strip (28) is movable along the shaping strip (27) in the thrust direction of the insulator (25) and in the direction of the extent of the longitudinal axis of the thrust strip (28) so as to form the insulator (25) by the shaping strip (27), wherein the shaping strip (27) has a cuboid main body (54), wherein the main body (54) has an upper side (55), wherein the shaping strip (27) has a first and a second deflection element (64, 65), wherein the first and the second deflection element (64, 65) are present on the upper side (55) of the main body (54) so as to project from the upper side (55) of the main body (54), wherein the first deflection element (64) by way of a lower side of the first deflection element (64) is connected to the upper side (55) of the main body (54), wherein the second deflection element (65) by way of a lower side of the second deflection element (65) is connected to the upper side (55) of the main body (54), wherein the second deflection element (65) is designed to be offset from the first deflection element (64) on the main body (54), wherein the first deflection element (64) has a first external side (66), wherein the first deflection element (64) has a second external side (67), wherein the second external side (67) of the first deflection element (64) is present so as to be opposite the first external side (66) of the first deflection element (64), wherein the first and the second external side (66, 67) of the first deflection element (64) converge on a front side (70) of the first deflection element (64) in such a way that the first deflection element (64) has an edge (71) on the front side (70) of the first deflection element (64), wherein the second external side (67) of the first deflection element (64), when viewed proceeding from the front side (70) of the first deflection element (64) in the thrust direction of the insulator (25), extends away from the first external side (66) of the first deflection element (64) in such a way that the first deflection element (64) widens proceeding from the front side (70) of the first deflection element (64), wherein the second deflection element (65) has a first external side (68), wherein the second deflection element (65) has a second external side (69), wherein the second external side (69) of the second deflection element (65) is present so as to be opposite the first external side (68) of the second deflection element (65), wherein the first and the second external side (68, 69) of the second deflection element (65) converge on a front side (72) of the second deflection element (65) in such a way that the second deflection element (65) has an edge (73) on the front side (72) of the second deflection element (65), wherein the second external side (69) of the second deflection element (65), when viewed proceeding from the front side (72) of the second deflection element (65) in the thrust direction of the insulator (25), extends away from the first external side (68) of the second deflection element (65) in such a way that the second deflection element (65) widens when viewed proceeding from the front side (72) of the second deflection element (65) in the thrust direction, wherein the shaping strip (27) is present in such a manner that in a forming procedure of the insulator (25), in which the insulator (25) is pushed in the thrust direction over the first and the second deflection element (64, 65), first one end (39) of a first side of the insulator (25) is pushed in the thrust direction along the second external side (67) of the first deflection element (64), wherein the first deflection element (64) folds over the first side of the insulator (25) herein on a first target line of the insulator (25), and subsequently one end (38) of a second side of the insulator (25) is pushed in the thrust direction along the second external side (69) of the second deflection element (65), wherein the second deflection element (65) herein folds over the second side on a second target line of the insulator (25).

2. Shaping tool (63) according to preceding Claim 1, characterized in that the first deflection element (64) on an upper side (74) of the first deflection element (64) has a first spring member (76) which is present so as to project from the upper side (74) of the first deflection element (64), wherein the first spring member (76) on the first deflection element (64) extends in the thrust direction of the insulator (25), wherein a front side (84) of the first spring member (76) is present so as to be spaced apart from the edge (71) of the first deflection element (64), wherein a spring member upper side (82) of the first spring member (76), when viewed in the thrust direction, proceeding from the upper side (74) of the first deflection element (64), runs away from the upper side (74) of the first deflection element (64) in such a way that in the forming procedure of the insulator (25) an external edge of the folded-over end (39) of the first side of the insulator (25) bears on a first spring member external side (78) of the first spring member (76).

3. Shaping tool (63) according to one of the preceding claims, characterized in that the shaping strip (27) has a fastening element (61) on the main body (54) so as to establish the shaping strip (27) on a shaping tool (63).

4. Shaping tool (63) according to one of the preceding claims, characterized in that the thrust strip (28) extends in a length, in a width and in a height, wherein the length is greater than the height and the height is greater than the width, wherein the thrust strip (28) has two large thrust strip external sides which extend in the height and in the length, wherein the thrust strip (28) has a first and a second small thrust strip external side which extend in the width and in the length, wherein a first small thrust strip external side on the first end has a depression (37) which extends along a longitudinal axis of the thrust strip (28) in such a way that in the forming procedure of the insulator (25) the folded-over ends (38, 39) of the first and of the second side of the insulator (25) can engage in the depression (37).

5. Transfer tool (10) having a shaping tool (63) according to one of the preceding claims, characterized in that the transfer tool (10) has a transfer magazine (20, 21), wherein the transfer magazine (20, 21) extends in a longitudinal direction, wherein the transfer magazine (20, 21) has a cavity (40) in which the insulator (25) is able to be introduced in the longitudinal direction of the transfer magazine (20, 21) by means of the thrust strip (28), wherein the cavity (40) is designed to taper conically in the longitudinal direction.

6. Transfer tool (10) according to preceding Claim 5, characterized in that the cavity (40) of the transfer magazine (20, 21) has a first and a second narrow cavity side (45, 46), wherein the cavity (40) has a first and a second wide cavity side (47, 48), wherein a first spring element (49) is present on a first internal side of the first wide cavity side (47) of the cavity (40) so as to project from the first internal side, wherein the first spring element (49) extends over the longitudinal extent of the cavity (40) in such a way that in the insertion procedure of the insulator (25) into the cavity (40) a first side of the insulator (25) is deformed into a cavity interior by the first spring element (49).

7. Transfer tool (10) according to one of preceding Claims 5 or 6, characterized in that a third spring element (53) is present on an end portion of the cavity (40) on the first narrow cavity side (45) so as to project from an internal side of the first narrow cavity side (45), wherein a fourth spring element (52) is present on the end portion (51) of the cavity (40) on the second narrow cavity side (46) so as to project from an internal side of the second narrow cavity side (46), wherein the third and the fourth spring element (52, 53) extend in the longitudinal extent of the cavity (40) in such a way that a third side of the insulator (25) is deformed into the cavity interior by the third spring element (52), and a fourth side of the insulator (25) is deformed into the cavity interior by the fourth spring element (53).

8. Machine (1) for producing an insulator (25), having a transfer tool (10) according to one of preceding Claims 5 to 7, or having a shaping tool (63) according to one of preceding Claims 1 to 4.

9. Machine (1) according to preceding Claim 8, characterized in that the machine (1) has a material magazine (2), an embossing device (3, 7), a blanking device (4), a flanging device (5), a transport device (6, 8) and / or a forming device (9).

10. Production method for producing an insulator (25) while using a transfer tool (10) according to one of preceding Claims 5 to 7, or while using a shaping tool (63) according to one of preceding Claims 1 or 4, and / or while using a machine (1) according to one of preceding Claims 8 or 9, wherein the production method comprises the following method steps: - unwinding insulator material (15) from an insulator material roll (13) in a feeding direction, wherein the insulator material roll (13) is held so as to be movable in a material magazine (2); - embossing a first bead (16) along the feeding direction into the unwound insulator material (15) by a first embossing device (3); - blanking material from the unwound insulator material (15) in such a way that insulator material (15) is removed in the region of an external edge (17) of the insulator material (15); - bending back the material remaining in the region of the external edge (17) of the insulator material (15) after the blanking procedure about the first bead (16) embossed in the feeding direction; - embossing a second bead transversely to the feeding direction into the insulator material (15) by a second embossing device (7); - cutting off one end of the unwound insulator material (15) transversely to the feeding direction in such a way that an insulator (25) is cut off; - forming the insulator (25) by the shaping tool (63); and - introducing the formed insulator (25) in the feeding direction of the insulator (25) into the transfer tool (10).

11. Production method for producing an insulator (25) according to preceding Claim 10, characterized in that the method step of forming the insulator (25) by the shaping tool (63) comprises the following method steps: - forming the insulator (25) by the shaping tool (63) in such a way that the insulator (25) is present in a U-shape; - pushing the insulator (25) onto the thrust strip (28) in such a way that the insulator (25) by way of the end side (17) of the insulator (25) rests on the detent (36) of the thrust strip (28); - moving the insulator (25) in the thrust direction of the insulator (25) by way of the thrust strip (28) in such a way that the insulator (25) is moved along an upper side of the shaping strip (27); and - forming one end (39) of the first side of the insulator (25) and one end (38) of the second side of the insulator (25) by the shaping tool (63).

12. Insulator (25) produced by the production method according to one of preceding Claims 10 or 11.