Feeding device for joining elements, mounting tool having a feeding device, and related feeding and mounting method

Abstract

The invention relates to a feeding device for bonding elements. The feeding device comprises a receiving part for at least one bonding element, wherein the bonding element can be received in the receiving part and can be positioned in front of the first opening; a circumferentially closed hose made of a flexible material, the first end of which is connected to the receiving portion and the opposite second end of which is connected to the discharge portion; and a flexible thrust element movable back and forth through the hose by a drive mechanism between a retracted position and an extended position. The thrust element is movable between a retracted position in which the front end of the thrust element is located in the receiving portion and an extended position in which the front end of the thrust element is located in the discharge portion such that the coupling element located in front of the first opening can be pushed from the receiving portion through the hose to the discharge portion by the thrust element.

Description

Technical Field

[0001] The present invention relates to a feeding device for joining elements, an installation tool having the feeding device, and a feeding method using the feeding device. Background Technology

[0002] Apparatus and methods for joining elements such as rivets are generally well known to those skilled in the art. Typically, when using such an apparatus, the mounting tool is mounted on a C-frame as a support structure. The C-frame can be fixed to a robot arm so that the robot can perform various automated operations in the desired position.

[0003] During the preparation phase of the installation process, the mating element needs to be delivered from the mating element supply source to a position below the punch of the installation head of the installation tool. This is typically achieved using a flexible profile hose. In this way, the mating element can be delivered to the installation tool by compressed air and / or gravity.

[0004] Here, the feeding of the bonding components can be carried out individually or in groups, which requires one or more processing mechanisms during the feeding process to ensure that only the required bonding components are supplied as needed.

[0005] In this regard, for example, reference can be made to WO 2006 / 084847 A1, which discloses that connecting elements are arranged in rows in the same manner and conveyed through a conveying channel to a loading device located on a manufacturing equipment, adjacent to the processing position of the connecting elements located below the punch. The conveying of the connecting elements is performed in steps at different time intervals. In each conveying step, a line consisting of multiple connecting elements (which abut against each other and whose parallel limiting surfaces are aligned in the same direction) is conveyed from a feeding device to the loading device on the manufacturing equipment by introducing air into the conveying channel. The conveying from the loading device to the processing position below the punch is achieved by a rigid loading slider that can be moved back and forth in the loading channel by means of a pneumatic piston.

[0006] WO 2010 / 139514 A1 discloses a similar solution. This patent describes a separating slider for a feeding device of a connecting element. The separating slider includes an axially extending through-hole for receiving the connecting element. The through-hole is formed by at least two leg segments. Furthermore, the separating slider is designed as a single unit and has a base segment. The transition portion from the base segment to each leg segment is designed to make the corresponding leg segment radially resilient. Additionally, an apparatus and method for feeding connecting elements to a processing position are also disclosed.

[0007] In this context, those skilled in the art are also aware of solutions in which the correct positioning of the component at the machining location is achieved by a flexible push rod arranged in its own channel. For example, DE 44 00 350 A1 describes a bolt welding apparatus having a bolt retainer with a bolt feed and positioning device that can be connected to a welding power source, and also having an adjustment device by which the bolt retainer can be moved toward or away from the workpiece. The control device consists of a main component that is securely mounted on a rack during use and a secondary component that can move linearly relative to the main component, the secondary component carrying the bolt feed and positioning device via an electrically insulating connector, to which the bolt retainer is fixed. In the adjustment path of the bolt feed and positioning device and the bolt retainer, a push rod that interacts with the bolt feed and positioning device is fixedly mounted on the rack. This push rod can be flexible and can be accessed through an angular lateral passage.

[0008] To design a device for feeding slender fasteners into a fastening apparatus, wherein the fasteners are fed separately through a first channel and pushed into a chuck by a push rod guided in a second channel, the device ensures normal and uninterrupted feeding to a retaining mechanism even when feeding short fasteners, DE 37 3 9 944C1 suggests that the first channel extends linearly through the device to the retaining mechanism coaxially arranged therewith, the second channel merges into the first channel at an acute angle, and the push rod is designed to be flexible. In the first end position, the push rod is located outside the first channel; in the bolt feeding position (corresponding to the second end position), the push rod is partially arranged in the second channel and partially arranged in the first channel.

[0009] In addition to these systems that use rigid pistons or flexible plungers for feeding, there are also systems that use only compressed air for feeding.

[0010] An example of such a system can be found in EP 4 129 592 A1. This patent describes a feeding device for feeding nails into a nail-installing apparatus, the device comprising a flexible tube having a front interface for connection to the nail-installing apparatus and at least one rear interface for connection to a nail feeding unit. Nails can be sequentially fed into the nail-installing apparatus longitudinally via this flexible tube. Furthermore, the patent also describes a nail-installing apparatus, particularly a pneumatic nail gun, and a device comprising a nail-installing apparatus and a feeding device.

[0011] EP 1 297 917 A2 also describes a fastening element feeding device for automatically selecting and feeding fastening elements (e.g., rivets) to an installation tool. The fastening elements are pre-loaded in a package and discharged through at least one fastening element feeding pipe connecting the installation device to the fastening element feeding device. The fastening element feeding device releases the selected fastening element from the package into the discharge pipe. In the pipe, connecting elements can be transferred individually or in groups from the feeding device to the tool. A transition station connected to the tool or the feeding pipe transfers the fastening element from the feeding device into the tool. The transition station is movable between a first position and a second position, in which the outlet of the transition station is located next to the tool so that the transition station inserts the supplied fastening element into the tool; and in the second position, in which the transition station is located away from the tool so that the tool or a portion thereof moves in the workpiece direction to insert the loaded fastening element. The feeding pipe is equipped with a wear-resistant element.

[0012] Finally, those skilled in the art also understand devices that use mechanical components rather than compressed air to deliver the connecting elements. For example, this avoids the disadvantage of having to use flexible, irregularly shaped hoses when using compressed air to deliver the connecting elements.

[0013] For example, WO 2019 / 110990 A2 describes a rivet feeding system for feeding rivets into a rivet installation tool. The system includes a punch, a retractable nose structure, and a die. The rivet feeding system includes at least one rivet feeding guide for feeding rivets to the nose structure; at least one rivet conveying device for holding or releasing rivets within a rivet receiving area; and at least one refillable magazine for storing rivets near the riveting tool. The magazine includes at least one magazine portion of the rivet feeding guide. Rivets can be stored in the magazine or conveyed to the installation tool via the magazine. Furthermore, the magazine includes at least one connection interface for replenishing the magazine, for example, by replenishing rivets from a bulk feed source. The magazine is in a rivet feeding relationship with the nose structure so that rivets can be supplied to the installation tool on demand and can move with the nose assembly. Therefore, the need for a long, flexible feeding hose to feed rivets from the magazine to the setting device is eliminated, and continuous feeding is ensured.

[0014] WO 2010 / 043362 A2 describes a hopper for storing and supplying multiple mating elements (particularly mounting bolts) to an installation device, a feeding module for the mating elements, and an installation tool used in conjunction with these mating elements. The hopper includes a base element located within the installation device, the base element having a storage slot in which the mating elements are aligned and movably accommodated, one end of the storage slot opening to a head of the installation device. Furthermore, a pushing mechanism is provided for moving the mating elements from the storage slot to the head of the installation tool. Finally, the hopper also includes a discharge mechanism by which the mating elements can be individually fed from the storage slot to the head of the installation device.

[0015] Based on existing technology, the object of this invention is to provide an alternative feeding device for coupling elements, which, without the aid of compressed air, reliably feeds the coupling element to the desired position at any spatial location (i.e., including the direction against gravity) via a feeding hose or channel, preferably of a profile. Another object of this invention is to provide a corresponding installation tool and a related feeding method. Finally, the object of this invention is to provide an installation method for inserting a coupling element into at least one component. Summary of the Invention

[0016] The above-mentioned objectives are achieved by the feeding device according to the present invention, the mounting tool for mounting coupling elements according to the present invention, the feeding method using the feeding device according to the present invention, and the mounting method using the feeding device according to the present invention. Advantageous embodiments and further extensions are derived from the following description, drawings, and summary of the invention.

[0017] A feeding device for a connecting element according to the present invention includes: a receiving portion for at least one connecting element, wherein the connecting element can be received therein and positioned in front of a first opening; a circumferentially closed hose made of a flexible material, wherein a first end is connected to the receiving portion and a second end is connected to a discharging portion; and a flexible thrust element that can be reciprocated within the hose by a driving mechanism, the thrust element being movable between a retracted position (where the front end of the thrust element is located at the receiving portion) and an extended position (where the front end of the thrust element is located at the discharging portion), thereby causing the connecting element located in front of the first opening to be pushed by the thrust element from the receiving portion through the hose into the discharging portion.

[0018] For ease of understanding, the feeding device of the present invention has been described in conjunction with an installation tool. For example, the installation tool includes an installation head with a punch and a mold disposed opposite the punch. The installation tool is mounted as a carrier on a C-shaped frame, which can be moved, for example, by a robot. Furthermore, a supply source for connecting elements is provided, wherein the connecting elements are, for example, rivets. Alternatively, the connecting elements may also be screws, which will be described later in conjunction with preferred embodiments.

[0019] The connecting elements are supplied from the connecting element supply source to the receiving section of the feeding device of the present invention. At this time, the connecting elements can be supplied individually or multiple connecting elements can be supplied together. If the connecting element or one of the multiple connecting elements is not yet positioned in front of the first opening of the receiving section, the connecting elements must first be positioned in front of the first opening. This will be explained later.

[0020] When the flexible thrust element is located in the receiving section and in the retracted position, it moves towards the discharge section through the first opening. This process is achieved by a drive mechanism. Through this movement, the flexible thrust element pushes the connecting element in front of it out of the receiving section and into the hose. When using rivets or similar connecting elements, the flexible thrust element grips the connecting element in a direction perpendicular to its longitudinal axis. To ensure that the connecting element does not tilt within the hose during this process, the hose is designed as a shaped hose.

[0021] In the field of compressed air supply for connecting elements, corresponding special-shaped hoses are known. These hoses have a circumferentially closed structure, and the cross-sectional shape of their inner side conforms to the cross-sectional shape of the connecting element to be supplied, for example, a T-shape.

[0022] The hose connects a receiving section located away from the mounting head (e.g., at the robot arm) to a discharging section located near the mounting head of the mounting tool. Due to this distance and the fact that the mounting tool may be in different positions within space due to machine guidance, the hose is typically curved, containing multiple bends and turns. Therefore, in order to deliver the coupling element through the hose to the discharging section using a thrust element, the thrust element must be able to follow the direction of the hose. For this purpose, the thrust element according to the invention is designed as a flexible structure.

[0023] Because they are arranged far apart, the length of the hose is preferably at least 50 cm, more preferably at least 60 cm, and particularly preferably at least 70 cm. Therefore, compared to the prior art, the receiving part is clearly not directly arranged near the mounting head.

[0024] In the following examples, once the connecting element passes through the discharge section, it is discharged to the mounting head. In other examples, a feeding device is typically used to transport the connecting element from a first position to a more distant second position. In other words, the feeding device can also be used in other parts of the feeding system located between the connecting element supply source and the processing or further processing position of the connecting element. This is particularly advantageous when using screws as connecting elements, as will be specifically explained in the subsequent description of preferred embodiments.

[0025] A key advantage of this device is that it allows the connecting element to be moved from a first position (i.e., the receiving section) to a second position (i.e., the discharging section) without the need for pneumatic components. This offers advantages in both cost reduction and sustainability. In this respect, the use of flexible thrust elements ensures that the connecting element can be reliably transported from the receiving section to the discharging section at any spatial location (including against gravity).

[0026] In a preferred embodiment of the feeding device, the receiving section further includes a separating mechanism for separating one of the multiple joining elements and positioning it in front of the first opening. This separating mechanism is preferably a mechanical separating mechanism. This is particularly advantageous when the receiving section is configured with multiple joining elements. For example, this is the case when the receiving section is connected to an accumulation line for joining elements or to a joining element magazine.

[0027] Here, the separation mechanism ensures that only one connecting element is delivered from the receiving section to the discharging section via a hose at a time. To avoid using pneumatic components here, the separation mechanism is specifically a mechanical separation mechanism, such as a mechanically operated slider.

[0028] Advantageously, the thrust element comprises one of the following: a spring rod (preferably a spring rod wound around the block), an elastomer rod, an element string, a steel cable, a Bowden cable, or a compression spring plate. By selecting the thrust element, the feeding device can be optimally adjusted according to the corresponding application, for example, in terms of available space. Generally, each element can be considered as a thrust element, as long as it can move along the curve of the hose between the receiving and discharging sections. In this regard, it must be considered that the thrust element ideally does not compress or only slightly compresses under pressure in order to accurately deliver the connecting element to the discharging section. In this case, the preferred length of the hose should be at least 50 cm, because the thrust element must also have at least this length in order to deliver the connecting element from the receiving section to the discharging section. This can be achieved in a particularly advantageous manner by using a spring rod wound around the block, which will be described in detail later.

[0029] According to another preferred embodiment of the feeding device, the hose is a shaped hose, and the thrust element includes a retaining mechanism for the coupling element, which is adjacent to the front end of the thrust element, specifically a form piece or two retaining arms. In this case, it is particularly preferred that the retaining mechanism includes a form piece whose outer contour is configured to match the contour of the coupling element and / or the inner contour of the shaped hose, and / or taper towards the end toward the thrust element. As previously described when a rivet was used as an exemplary coupling element, this embodiment is configured such that the thrust element engages laterally with the coupling element, i.e., perpendicular to the longitudinal axis of the coupling element. Therefore, using a shaped hose as the hose is also necessary to prevent the coupling element from canting or tilting within the hose.

[0030] Because the thrust element has a retaining mechanism, it ensures that the connecting element is tightly attached to the thrust element, and ideally, it will not separate from the thrust element. This function is particularly beneficial due to the corresponding molded parts. Furthermore, this design is especially advantageous when selecting appropriate monitoring methods to ensure the correct delivery of the connecting element to the discharge section, which will be explained in detail later.

[0031] The tapered end of the forming component towards the thrust element is designed to allow the thrust element to pass through the shaped hose with minimal friction during its return stroke (i.e., from the extended position to the retracted position), especially when the shaped hose is curved. Without the tapered structure, the thrust element (e.g., when using a spring rod as the thrust element) might initially elongate and then suddenly spring back when reaching the force required to overcome the clamping position.

[0032] In another preferred embodiment of the feeding device, the thrust element includes a transmission mechanism adjacent to its front end, which engages with the head of the coupling element to transmit rotation of the thrust element to the coupling element. This configuration is particularly suitable for situations where screws are used as coupling elements. The screw head has internal and / or external shapes that allow tool engagement, forming a rotating coupling element for the screw. To engage with this shape, the thrust element includes a correspondingly designed transmission mechanism. Therefore, unlike the previous example, the thrust element does not engage with the coupling element perpendicular to its longitudinal axis, but rather along its longitudinal axis. Therefore, shaped hoses used as flexible conduits cannot be used as flexible conduits.

[0033] Furthermore, the thrust element (preferably formed as a flexible shaft) is provided with a second drive mechanism that rotates the thrust element. The rotation of the thrust element can be transmitted to the connecting element, such that a screw serving as the connecting element can be screwed into at least one component, preferably into at least two components.

[0034] Therefore, during use, the screw, serving as the connecting element, is pushed from the receiving section to the discharging section via the hose in the manner described above. In this case, the discharging section is preferably not located on the mounting head of the installation tool, but rather terminates at a component, for example, to which it is attached. Once the pushing element pushes the connecting element through the hose, the tip of the connecting element attaches to the first component. Since the discharging section preferably employs a rigid structure, the connecting element is further securely positioned radially.

[0035] When the second drive mechanism is activated, it rotates the thrust element and transmits the rotation to the coupling element via a transmission mechanism. In this way, the coupling element can be installed into at least the first component. Preferably, the torque transmitted by the thrust element is between 3 Nm and 30 Nm, and more preferably up to 15 Nm.

[0036] Advantageously, the thrust element, in its retracted state, is at least partially wound onto the drum or arranged within the housing. This configuration further satisfies the specific application requirements, particularly in the selection of a suitable thrust element. In this regard, please refer to the description above regarding the different preferred thrust element types.

[0037] In terms of dimensions, it is particularly preferred that the cross-sectional area of ​​the thrust element be between 30% and 80% of the cross-sectional area of ​​the hose. This is especially applicable when using profiled hoses as the hose. The cross-sectional area of ​​the thrust element is calculated based on its outer diameter or outer dimension, regardless of its actual design. This particularly ensures that the thrust element does not adhere to the inner wall of the profiled hose in a serrated manner, as this would cause a deviation between the length of the profiled hose and the length of the thrust element within it. However, this length is crucial for ensuring accurate delivery of the coupling element to the discharge section, and, if necessary, through the discharge section, and for accurately determining its actual position. This improves the monitoring of accurate delivery of the coupling element, which will be further explained later.

[0038] Preferably, the drive mechanism comprises an electric, pneumatic, or hydraulic actuator. Electric actuators are particularly preferred because this eliminates the need for any pneumatic components in the feeding device. When selecting an actuator, it is also important to consider the existing equipment at the installation or operating site. That is, existing compressed air or similar feeding networks can be used, and a pneumatic or hydraulic actuator can be selected.

[0039] Furthermore, preferably, the drive mechanism comprises two wheels, with a thrust element guided between them, and at least one of the wheels is driven. In this case, it is advantageous that at least one of the wheels (preferably both wheels) has knurling, an elastic coating, or an elastic ring, and / or one wheel is preloaded along the direction of the other wheel, particularly with spring preload. Specifically, the outer contour and material of the drive wheel or wheels, as well as the preload configuration, generate as much friction as possible in the contact area with the thrust element. This avoids relative movement between the multiple wheels and the thrust element, which has a positive impact on the normal operation of the feeding device.

[0040] In a preferred embodiment, the feeding device further includes at least one of the following sensors: a path sensor, a force sensor, a torque sensor, and / or a speed sensor. Particularly preferably, each sensor is used in conjunction with two wheels that serve as a drive mechanism. For example, this document will describe the use of these sensors in conjunction with a spring rod as a thrust element, and the use of a path sensor for path control.

[0041] In this context, the primary consideration should be, especially when the connecting element is transported from the receiving section to the discharging section via path control, minimizing the possibility of compression of the thrust element. This can be achieved, for example, by using a spring rod wound around the block as the thrust element.

[0042] In the case of the force-controlled variant, the compression thrust element may also cause problems because the increase in force will reach the drive mechanism and the force sensor used on the drive mechanism in a significantly reduced or delayed manner.

[0043] To avoid this situation, a position sensor can be used as an alternative or supplement. This sensor is particularly capable of identifying whether the coupling element has reached the desired position in the discharge section, or the desired position in the feeding direction behind the discharge section, for example, near or below the punch of the mounting head.

[0044] In this exemplary path control, the path sensor detects whether the thrust element is back in the retracted position after each return stroke. That is, the path before each new feeding process is set to zero. For example, the distance to be covered in the forward stroke is defined by the number of revolutions of the engine shaft. The conversion of the engine shaft revolutions into the path traveled by the thrust element is based on the effective diameter of the drive wheels.

[0045] Alternatively, the engine torque and the friction of the drive wheels can be selected so that when the coupling element reaches the desired position in the discharge section or in the feeding direction behind it (e.g., in the mounting head), the engine stops operating and the thrust element cannot be pushed further. For example, this state can also be detected by a speed sensor, since the current speed of the thrust element is zero in this case.

[0046] The mounting tool of the present invention for mounting coupling elements includes the feeding device of the present invention. Therefore, the mounting tool of the present invention uses the feeding device of the present invention to feed the coupling elements. For the resulting technical effects and advantages, please refer to the above description of the feeding device to avoid repetition.

[0047] In a preferred embodiment of the installation tool, the discharge section is arranged adjacent to the installation head of the installation tool, while the receiving section is arranged away from the installation head, so that the mating element can be discharged to the installation tool, particularly the installation head, through the discharge section. In this configuration, the feeding device supplies the final portion of the material to the installation head. Since the feeding device can supply the mating element to the installation head without any pneumatic components, compressed air-free feeding can be achieved.

[0048] As an alternative to this preferred embodiment, the feeding device can also be used, for example, to insert or install screws as coupling elements into components. For this purpose, the thrust element includes a transmission mechanism that engages with the head end of the coupling element. Thus, the rotational motion applied to the thrust element can be transmitted to the screw as the coupling element, thereby screwing it into one or more components. For specific details, please refer to the description of the preferred embodiment above.

[0049] A feeding method using the feeding device of the present invention includes the following steps: feeding a coupling element to a receiving portion of the feeding device; positioning the coupling element in front of a first opening of the receiving portion such that the coupling element is in front of a flexible thrust element; moving the thrust element from a retracted state to an extended state such that the coupling element in front of the thrust element moves along a discharge portion via a hose; discharging the coupling element when it reaches the discharge portion; and moving the flexible thrust element from the extended state back to the retracted position. The feeding method of the present invention uses the feeding device of the present invention to supply the coupling element. Therefore, to avoid repetition, please refer again to the description above. Preferably, this feeding method is used in conjunction with an installation tool, so that, as described above, the feeding device can supply the coupling element to the final portion of the installation head of the installation tool. Depending on the required functionality and the required coupling element feeding coordination, the feeding method can be operated by a controller assigned to the feeding device, a controller assigned to the installation tool, or a controller assigned to a robot. Specifically, the controller assigned to the feeding device may be subordinate to the controller assigned to the installation tool.

[0050] The installation method of the present invention employs an embodiment of the feeding device of the present invention, wherein the thrust element includes a transmission mechanism capable of engaging with the head of the coupling element. The installation method includes the following steps: feeding the coupling element to the receiving portion of the feeding device; positioning the coupling element in front of a first opening in the receiving portion, such that the coupling element is located in front of the flexible thrust element; moving the thrust element from a retracted state to an extended state, such that the coupling element located in front of the thrust element moves along the direction of the discharge portion via a hose; upon reaching the discharge portion, applying torque to the coupling element via a second drive mechanism and by means of the transmission mechanism at the front end of the thrust element, thereby installing the coupling element into at least one component, wherein the torque transmitted by the thrust element is preferably between 3 Nm and 30 Nm, particularly preferably up to 15 Nm. In addition to pushing the coupling element into the hose, the coupling element can also be rotated by the thrust element. Therefore, this method is particularly suitable for coupling elements with an engagement mechanism at the head, such as screws. In this case, please refer particularly to the preferred configuration of the feeding device with a transmission mechanism on the thrust element described above. Attached Figure Description

[0051] The invention will now be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same parts and / or elements. They indicate:

[0052] Figure 1 This is a first perspective view of a first embodiment of the feeding device of the present invention.

[0053] Figure 2 This is a second perspective view of a first embodiment of the feeding device of the present invention (with a semi-transparent shaped flexible tube).

[0054] Figure 3 for Figure 1 Perspective view of the feeding device (excluding the special-shaped hose).

[0055] Figure 4 for Figure 2 Partial perspective view of the feeding device (discharge section omitted).

[0056] Figure 5 This is a perspective view of an embodiment of an installation tool with a second embodiment of the feeding device of the present invention.

[0057] Figure 6 According to Figure 5 A first perspective view of a second embodiment of the feeding device of the present invention.

[0058] Figure 7 According to Figure 5 A second perspective view of a second embodiment of the feeding device of the present invention.

[0059] Figure 8 According to Figure 5A perspective view of the receiving section of the feeding device.

[0060] Figure 9 According to Figure 8 A cross-sectional view of the receiving section of the feeding device.

[0061] Figure 10 According to Figure 5 A side view of the receiving part, the drive mechanism, and the thrust element.

[0062] Figure 11 According to Figure 10 A cross-sectional view of the receiving part, the drive mechanism, and the thrust element.

[0063] Figure 12 This is a partial cross-sectional view of the receiving section of the feeding device in the initial state according to the second embodiment.

[0064] Figure 13 This is a partial cross-sectional view of the receiving section of the second embodiment of the feeding device under load.

[0065] Figure 14 This is a partial cross-sectional view of the receiving section in the transport state of the second embodiment of the feeding device.

[0066] Figure 15 This is a perspective view of another embodiment of the feeding device of the present invention, which has a transmission mechanism at the thrust element.

[0067] Figure 16 This is a schematic flowchart of one embodiment of the material feeding method.

[0068] Figure 17 This is a schematic flowchart of an embodiment of an installation method using a feeding device, wherein the feeding device has a transmission mechanism at the thrust element. Detailed Implementation

[0069] For ease of understanding, please refer to Figures 1 to 4 Based on the application of the feeding device 1 of the present invention, one embodiment of it is described. Preferably, the feeding device 1 is used in conjunction with an installation tool 5, which includes an installation head 7 with a punch and a mold 8 disposed opposite to the punch. The installation tool 5 is mounted on a C-shaped frame 6, which serves as a carrier and can be moved under robot guidance (see also). Figure 5 In addition, a supply source for connecting elements is provided. Connecting element 3 is, for example, a rivet.

[0070] The feeding device 1 includes a receiving part 10 for at least one connecting element 3, a circumferentially closed hose 20 made of flexible material, a discharging part 30, and a flexible thrust element 40. A first end 22 of the hose 20 is connected to the receiving part 10, and its opposite second end 24 is connected to the discharging part 30.

[0071] When used with an installation tool, the discharge section 30 is preferably located at or near the installation head, particularly at the punch of the installation head. In the illustrated embodiment, the discharge section 30 is arc-shaped, such that a 90° angle is formed between the inlet and outlet ends of the receiving section 30 where the connecting element 3 enters. The receiving section 10 is located at a certain distance from the installation head.

[0072] Due to the distance between the receiving section 10 and the discharging section 30, and the different positions occupied by the installation tool in space (e.g., under robot guidance), the hose 20 is typically curved. Therefore, it has multiple bends and turns. Thus, in order to deliver the connecting element 3 to the discharging section 30 via the hose 20 using the thrust element 40, the thrust element 40 must move along the direction of the hose 20. Therefore, the thrust element 40 can be flexibly configured. Furthermore, it is worth noting that the length of the hose 20 is, for example, at least 50 cm, preferably at least 60 cm, and particularly preferably at least 70 cm, which further emphasizes the distance between the receiving section 10 and the discharging section 30.

[0073] Furthermore, in the illustrated structure, a rivet is used as the connecting element 3. When using this connecting element 3, the thrust element 40 engages with it transversely to the longitudinal axis of the connecting element 3. Therefore, to prevent the connecting element 3 from tilting or shifting within the hose 20, the hose 20 is preferably formed as a shaped hose.

[0074] In the field of compressed air supply for connecting element 3, corresponding flexible shaped hoses are known. These hoses have a circumferentially closed structure, and their internal cross-sectional shape matches the cross-sectional shape of the connecting element 3 to be transported. Therefore, in the illustrated example, its cross-sectional shape is T-shaped.

[0075] In the illustrated embodiment, the thrust element 40 is a spring rod. Alternatively, a spring rod, a string of elements, a steel cable, a Bowden cable, or a compression spring plate are preferably used. By selecting a suitable thrust element 40, the feeding device 1 can be effectively adapted to the corresponding application, for example, in terms of available assembly space. Here, any element capable of moving along the curved path between the receiving section 10 and the discharging section 30 within the hose 20 is suitable as the thrust element 40.

[0076] It should be ensured that the thrust element 40 is not compressed or only slightly compressed under ideal pressure conditions to guarantee accurate delivery of the connecting element 3 to the discharge section 30. In this case, it should also be ensured that the length of the hose 20 is at least 50 cm, because the thrust element 40 must have at least this length to deliver the connecting element 3 from the receiving section 10 to the discharge section 30.

[0077] To ensure that the thrust element 40 is not compressed or is only slightly compressed in the thrust direction, the thrust element 40 is at least partially wound around a drum or disposed within a housing in the retracted state. The drum or housing is indicated by reference numeral 46.

[0078] The dimensions of the cross-sectional area of ​​the thrust element 40 also significantly affect its functionality. Therefore, in the illustrated embodiment, the cross-sectional area of ​​the thrust element 40 is between 30% and 80% of the cross-sectional area of ​​the hose 20. This is especially true when using a shaped hose as the hose 20.

[0079] The cross-sectional area of ​​the thrust element 40 is calculated solely based on its outer diameter or outer dimension, regardless of its actual design. This ensures that the thrust element 40 does not adhere to the inner wall of the hose 20 in a serrated manner, as this would cause a deviation between the length of the hose 20 and the length of the thrust element 40 within the hose 20. However, this length is crucial for accurately delivering the connecting element 3 to the discharge section 30, and this length must be determined precisely, as will be explained in conjunction with the usage scenario.

[0080] When using the feeding device 1, the coupling element 3 is fed from the coupling element supply source to the receiving section 10. For this purpose, the receiving section 10 includes a feeding opening 16. Figure 1 and Figure 2 In the illustrated embodiment, the feed opening 16 is located on the cover plate of the receiving section 10. Thus, the connecting element 3 can reach the receiving section 10 and be positioned in front of the first opening 12 (see [reference]). Figure 3 ).

[0081] The feeding of material from the receiving section 10 to the discharging section 30 by the connecting element 3 is carried out by the thrust element 40. For this purpose, the thrust element 40 moves from a retracted position in the receiving section 10 to an extended position in the discharging section 30. In the example shown, the thrust element 40 is located in the hose 20 together with the connecting element 3. During this process, the thrust element 40 engages with the connecting element 3 laterally (i.e., from the direction perpendicular to the longitudinal axis of the connecting element 3).

[0082] A retaining mechanism 44 is provided at the front end 42 of the thrust element 40 so that the coupling element 3 can be attached to the thrust element 40, i.e., ideally it will not detach from the thrust element 40 due to gravity. The retaining mechanism 44 can be a single molded part or two retaining arms. The configuration with the retaining mechanism 44 is particularly suitable for irregularly shaped hoses such as hose 20.

[0083] In the illustrated structure, the retaining mechanism 44 is a molded part whose outer contour matches the contour of the connecting element 3 and the inner contour of the shaped hose 20. Furthermore, the molded part of the retaining mechanism 44 tapers towards the end facing the thrust element 40. The tapered structure of the molded part or retaining mechanism 44 at the end facing the thrust element 40 allows the thrust element 40 to pass through the shaped hose with minimal friction during the return stroke (i.e., from the extended position to the retracted position). This is particularly suitable when the shaped hose has a curved orientation.

[0084] The movement of the thrust element 40 between the retracted position (where the thrust element 40 is located within the receiving section 10) and the extended position (where the thrust element 40 is located within the discharging section 30) via the hose 20 is achieved by a corresponding drive mechanism 50. For this purpose, in the illustrated embodiment, the drive mechanism 50 includes an electric actuator 52, such as an electric motor. The use of an electric actuator 52 is particularly preferred because this allows the feeding device 1 to operate entirely without any pneumatic components.

[0085] Alternatively, when selecting the drive mechanism 50, the operating methods available at the installation tool 5 or the application site can be considered. That is, in addition to the electric actuator 52, existing compressed air or similar feeding networks can be used, and the drive mechanism 50 can be selected as a pneumatic actuator or a hydraulic actuator.

[0086] Furthermore, the drive mechanism 50 includes two wheels 54 and 56. A thrust element 40 is guided between the wheels 54 and 56. The first wheel 54 is driven by an actuator 52. At least one of the two wheels 54 and 56 has knurling, an elastic coating, or an elastic ring. Additionally, the second wheel 56 is arranged in the direction of the first wheel 54 in a pre-tensioned manner by a spring 58.

[0087] Specifically, the outer contour and material of the first wheel 54 (i.e., the drive wheel), as well as its preloaded construction, ensure that the highest possible frictional force is generated at the contact points between wheels 54 and 56 and the thrust element 40. This avoids relative movement between wheels 54 and 56 and the thrust element 40. This has a positive impact on the normal operation of the feeding device 1.

[0088] In order to control and / or monitor the feeding of the connecting element 3, the feeding device 1 includes at least one of the following sensors: a path sensor, a force sensor, a torque sensor, and / or a speed sensor.

[0089] In particular, when a path control method is preferably used to transport the connecting element 3 from the receiving section 10 to the discharging section 30, the thrust element 40 should be kept as free from compression as possible. For example, as mentioned at the beginning of this document, this can be achieved using a spring rod wound around the block as the thrust element 40.

[0090] For completeness, this article should note that in the force-controlled variant, compression of the thrust element 40 can also cause problems. This is because the increase in force will reach the drive mechanism 50 and the force sensor used there in a significantly reduced or delayed manner.

[0091] To avoid the drawbacks caused by the compression of the thrust element 40, a position sensor can be used as an alternative or supplement. This sensor is used to identify whether the connecting element 3 has reached the desired position in the discharge section, or whether it has reached the desired position in the feeding direction of the connecting element 3 behind the discharge section 30.

[0092] In the case of exemplary path control, the path sensor detects whether the thrust element 40 is in the retracted position again (i.e., after the first opening 12 in the receiving section 10) after each return stroke (i.e., after each movement from the extended position to the retracted position). In other words, in this case, the path before each new feeding process is set to zero.

[0093] The distance traveled during forward propulsion, i.e., from the retracted position to the extended position, is defined, for example, by the number of revolutions of the engine shaft of the drive mechanism 50. The number of revolutions of the engine shaft is converted into the path traveled by the thrust element 40 by the effective diameter of the drive wheel (i.e., the first wheel 52 in the example shown).

[0094] Alternatively, the engine torque and the friction of the drive wheel (or the first wheel 52) can be selected separately so that when the coupling element 3 reaches or passes the desired position of the exhaust section 30, the engine stops running and the thrust element 40 cannot be further pushed. This state can also be detected, for example, by a speed sensor, because in this case, the actual speed of the thrust element 40 is zero.

[0095] Once the connecting element 3 reaches or passes the discharge section 30, it is discharged into the mounting head. In other embodiments, the feeding device 1 is typically used to transport the connecting element 3 from a first position to a more distant second position.

[0096] The advantage of this feeding device 1 is that it can move the connecting element from the first position (i.e., the receiving part 10) to the second position (i.e., the discharging part 30) without the need for pneumatic components. This is particularly advantageous in terms of cost and sustainability. Of particular note is the use of the flexible thrust element 40, which ensures that the connecting element 3 can be reliably transported from the receiving part 10 to the discharging part 30 at any spatial position (i.e., including the direction against gravity).

[0097] refer to Figure 5 The image shows an installation tool 5 with a second embodiment including a feeding device 1. The main difference between this second embodiment and the first embodiment lies in the design of the receiving part 10, which will be discussed later. Figures 6 to 14Please provide an explanation.

[0098] First, referring again to the structure of the installation tool 5, which includes an installation head 7 and a mold 8, both of which are mounted on a C-shaped frame 6 that serves as a carrier. The C-shaped frame 6 can be moved, for example, by robot guidance.

[0099] The receiving part 10 of the feeding device 1 is mounted on the C-shaped frame 6. In the illustrated example, it is mounted on the vertical area of ​​the C-shape connecting the two horizontal protrusions. As previously described, the receiving part 10 is connected to the discharging part 30 via a hose 20. As shown, the discharging part 30 is located at the mounting head 7.

[0100] Unlike the previous configuration, the connecting element 3 is not fed individually, but is conveyed to the receiving unit 10 via two accumulation lines 18. The accumulation lines 18 can be configured in a separate housing connected to the receiving unit 10, or they can be part of the receiving unit 10. Therefore, the connecting element 3 is not fed individually to the receiving unit 10, but rather multiple connecting elements 3 exist within the accumulation lines 18.

[0101] Therefore, the drive mechanism 50 is arranged near the housing of the accumulation line 18. The accumulation line 18 is equipped with a matching cover to prevent the coupling element 3 from falling out of the accumulation line. Additionally, the docking station 19 is also shown in the figure.

[0102] Figure 6 and Figure 7 It shows that according to Figure 5 For ease of understanding, the C-shaped frame 6, mounting head 7, and mold 8 are omitted from the diagram. Especially in... Figure 7 In the middle, a clamping device 60 can be seen at the receiving part in order to keep the connecting elements 3 in the accumulation line 18 abutting each other.

[0103] In particular, such as Figure 8 As shown, the accumulation lines 18 are configured for different coupling elements 3. That is, the left or front accumulation lines 18 are designed for coupling elements 3 with shorter shafts, while the right or rear accumulation lines 18 are designed for coupling elements 3 with longer shafts. The configuration of the accumulation lines 18 can of course be reversed, or the same type of coupling element 3 can be stored in two accumulation lines 18 at the same time.

[0104] The clamping device 60 includes two clamping rollers or rollers 62. Flexible elements are wound around them, and tension can be applied to the coupling element 3 in the accumulation line 18 in the direction along the receiving section 10 by means of corresponding clamping members 64.

[0105] For clarity, Figure 9 It shows Figure 8A cross-sectional view. As can be seen from the figure, there is a channel between the accumulation lines 18. During operation, the thrust element 40 is inserted into this channel to deliver the connecting element 3 located in front of the first opening 12 into the shaped hose 20 and then to the discharge section 30.

[0106] Figure 10 and 11 Each with a side view ( Figure 10 ) and sectional view ( Figure 11 ) shows according to Figure 8 and 9 The structure includes a drive mechanism 50 and a thrust element 40. During operation, the drive mechanism 50 moves the thrust element 40, along with the holding mechanism 44, forward into the channel, where it abuts against the connecting element 3 in the receiving section 10 near the first opening 12. The path of the channel is from... Figure 11 It is clearly visible in the middle.

[0107] refer to Figures 12 to 14 The figure shows a cross-sectional view of an alternative receiving section 10 of the feeding device 1. It is clearly visible in the figure that the receiving section 10 has a single-piece separation mechanism 14. This ensures that only one connecting element 3 is fed to the discharging section 30 at a time. As described above, the thrust element 40 is guided to the receiving section 10 through a channel and is located within or behind the first opening 12 in the retracted state. Figure 12 The corresponding initial state is shown.

[0108] If the connecting element 3 is to be conveyed to the discharge section 30 at this time, the separating mechanism 14 must first be activated. This mechanism is a mechanical mechanism, such as a mechanical slider, operated by an actuator. The separating mechanism 14 moves the connecting element 3 in front of the first opening 12, thereby moving it in front of the thrust element 40. This state is as follows: Figure 13 As shown. Depending on the orientation of the receiving unit 10 in space, it can also be positioned using gravity.

[0109] At this time, the thrust element 40, as described above, is activated, causing the connecting element 3 to move into the hose 20, particularly into the shaped hose, passing through the hose 20 until it reaches the discharge section 30. This initial state is... Figure 14 As shown in the diagram. Additionally, please refer to the above description regarding functionality.

[0110] Thus, the separation mechanism 14 ensures that only one individual connecting element 3 is always supplied from the receiving section 10 to the discharging section 30 through the hose 20.

[0111] Once the coupling element 3 is positioned and / or discharged into the discharge section 30, the thrust element 40 moves from the extended position back to the retracted position through the hose 20. In this case, it is advantageous for the end of the forming part facing the thrust element 40 to have a tapered structure, as this will allow the thrust element 40 to pass through the hose 20 with the least possible friction during the return stroke (especially when the hose 20 is curved). Without the tapered structure, the thrust element 40 may first elongate and then suddenly spring back when reaching the force required to overcome the clamping position, for example, when a spring rod is used as the thrust element 40.

[0112] Once the thrust element 40 is back in the retracted position, the above process can be repeated, and a new or another connecting element 3 can be fed to the discharge section. Referring to the configuration with the accumulation line 18, the upward-moving connecting element 3 is thus separated and positioned in front of the opening 12 so that it can be fed from the thrust element 40 to the discharge section 30.

[0113] refer to Figure 15 Now, another construction of the feeding device 1 will be discussed. This construction is particularly suitable for use with screws or the like as connecting elements.

[0114] In this configuration of the feeding device 1, the thrust element 40 includes a transmission mechanism 48 located near the front end 42. This transmission mechanism can engage with the head of the coupling element 3 (e.g., a screw). The screw has an internal and / or external shape on its head that can engage with a tool, thereby rotating the coupling element 3 configured as a screw. The thrust element 40 includes a correspondingly designed transmission mechanism 48 for engagement with this transmission mechanism. In the example shown, the transmission mechanism is externally hexagonal, so the screw has an internally hexagonal shape on its head.

[0115] Unlike the previous example where a rivet is used as the connecting element 3, the thrust element 40 does not engage with the connecting element 3 transversely to its longitudinal axis, but rather is designed as a screw-like connecting element that engages along the longitudinal axis of the connecting element 3. Therefore, a non-standard hose as the hose 20 cannot be used.

[0116] Furthermore, the thrust element 40, preferably designed as a flexible shaft, is provided with a second drive mechanism 70, which rotates the thrust element 40. The rotation of the thrust element 40 can be transmitted to the coupling element 3 via the transmission mechanism 48, so that the screw serving as the coupling element 3 can be screwed into or installed into at least one component, preferably at least two components.

[0117] During use, the screw, serving as the connecting element 3, is pushed from the receiving part 10 through the hose 20 towards the discharging part 20 in the manner described above. Preferably, during this process, the discharging part 30 is not arranged on the mounting head of the installation tool, but rather abuts against a component, i.e., is attached to that component. Therefore, once the pushing element 40 pushes the connecting element 3 past the hose 20, the tip of the connecting element 3 is attached to the first component. Since the discharging part 30 preferably employs a rigid structural design, the connecting element 3 is further securely positioned radially.

[0118] When the second drive mechanism 70 is activated, it causes the thrust element 40 to begin rotating, and transmits the rotation to the coupling element 3 via the transmission mechanism 48. In this way, the coupling element 3 can be installed at least to the first component. Preferably, the torque transmitted by the thrust element is between 3 Nm and 30 Nm, and more preferably up to 15 Nm.

[0119] refer to Figure 16 The present invention provides a feeding method using an embodiment of the feeding device 1 of the present invention. In step A, the connecting element 3 is fed to the receiving portion 10 of the feeding device 1. Furthermore, the connecting element 3 is positioned in front of the first opening in the receiving portion 10. This is performed in step B. At the end of this step, the connecting element 3 is positioned in front of the flexible thrust element 40.

[0120] At this point, in step C, the thrust element 40 moves from the retracted state to the extended state. This is achieved by the drive mechanism 50. Consequently, the connecting element 3, located in front of the thrust element 40, moves towards the discharge section 30 via the hose 20.

[0121] Finally, in step D, when the discharge section 30 is reached, that is, when the desired position in the discharge section 30 or the desired position in the feeding direction of the connecting element 3 behind the discharge section 30 is reached, the connecting element 3 is discharged, and the flexible thrust element 40 moves from the extended position back to the retracted position.

[0122] Subsequently, if the receiving unit 10 already has a single connecting element 3, steps A to D of the above method can be repeated. If the receiving unit 10 (e.g., due to the accumulating line 18) already has multiple connecting elements 3, steps B to D are preferably repeated.

[0123] Finally, refer to Figure 17An embodiment of an installation method using a feeding device 1 is described, which has a transmission mechanism 48 at the thrust element 40. In step a, the connecting element 3 is fed to the receiving portion 10 of the feeding device 1. A subsequent step b is followed, in which the connecting element 3 is positioned in front of the first opening 12 in the receiving portion 10, such that the connecting element 3 is arranged in front of the flexible thrust element 40. Unlike the previous embodiment, the positioning of the connecting element 3 here causes the thrust element 40 to engage with the connecting element 3 along its longitudinal axis, preferably at the head of the connecting element 3.

[0124] In step c, the thrust element 40 moves from the retracted state to the extended state, causing the connecting element 3 located in front of the thrust element 40 to move along the direction of the discharge section 30 via the hose 20.

[0125] At this point, in step d, when the discharge section 30 is reached, torque is applied to the coupling element 3 via the second drive mechanism 70 and the transmission mechanism 48 at the front end 42 of the thrust element 40. Thus, the coupling element 3 is installed into at least one component, and the torque transmitted by the thrust element 40 is preferably between 3 Nm and 30 Nm, particularly preferably up to 15 Nm.

[0126] List of reference numerals

[0127] 1 Feeding device

[0128] 3 Connecting elements

[0129] 5 Installation Tools

[0130] 6C-type frame

[0131] 7 Installation Head

[0132] 8 molds

[0133] 10 Receiving Section

[0134] 12 The first opening in the receiving section 10

[0135] 14 Separation Mechanism

[0136] 16 Feeding opening

[0137] 18 Accumulation Line

[0138] 19 docking stations

[0139] 20 Hose

[0140] 22 The first end of the hose

[0141] 24. The second end of the hose

[0142] 30 Emissions Department

[0143] 40 Thrust element

[0144] 42 Frontend

[0145] 44. Maintenance mechanism

[0146] 46. ​​Housing of thrust element 40

[0147] 48 Transmission Mechanism

[0148] 50 Drive mechanism

[0149] 52 Actuators

[0150] 54 First Round

[0151] 56 Second Round

[0152] 58 Springs

[0153] 60 Clamping device

[0154] 62 rollers

[0155] 64 Clamping components

[0156] 70 Second drive mechanism

Claims

1. A feeding device (1) for bonding element (3), comprising: a. A receiving portion (10) for at least one connecting element (3), wherein the connecting element (3) can be received in the receiving portion (10) and positioned in front of the first opening (12), b. A circumferentially closed flexible hose (20) made of flexible material, the first end (22) of which is connected to the receiving part (10), and the opposite second end (24) of which is connected to the discharging part (30), and c. A flexible thrust element (40) that can reciprocate between a retracted position and an extended position through the hose (20) by means of a drive mechanism (50), wherein in the retracted position the front end (42) of the thrust element (40) is located in the receiving part (10) and in the extended position the front end (42) of the thrust element (40) is located in the discharging part (30), such that the connecting element (3) located in front of the first opening (12) can be pushed from the receiving part (10) through the hose (20) to the discharging part (30) by the thrust element (40).

2. The feeding device (1) according to claim 1, wherein the receiving part (10) further includes a separating mechanism (14) for separating a connecting element (3) from a plurality of connecting elements (3) and positioning it in front of the first opening (12), wherein the separating mechanism (14) is preferably a mechanical separating mechanism.

3. The feeding device (1) according to any one of the preceding claims, wherein the thrust element (40) comprises one of the following: a spring rod, preferably a spring rod wound on the block, an elastic rod, a string of elements, a steel cable, a Bowden cable, or a compression spring plate.

4. The feeding device (1) according to any one of the preceding claims, wherein the hose (20) is a shaped hose, and the thrust element (40) includes a retaining mechanism (44) for the connecting element (3), the retaining mechanism being adjacent to the front end (42) of the thrust element (40), and in particular the retaining mechanism being a shaped part or two retaining arms.

5. The feeding device (1) according to claim 4, wherein, The retaining mechanism (44) includes a molded part, That a. Having an outer contour configured to match the contour of the connecting element (3) and / or the inner contour of the shaped hose (20), and / or b. tapering towards the end of the thrust element (40).

6. The feeding device (1) according to any one of claims 1 to 3, wherein, The thrust element (40) includes a transmission mechanism (48) adjacent to the front end (42), which can engage with the head of the connecting element (3) so that rotation of the thrust element (40) can be transmitted to the connecting element (3).

7. The feeding device (1) according to any one of the preceding claims, wherein, When in the retracted state, the thrust element (40) is at least partially wound around the roller or arranged in the housing.

8. The feeding device (1) according to any one of the preceding claims, wherein, The cross-sectional area of ​​the thrust element (40) is 30% to 80% of the cross-sectional area of ​​the hose (20), preferably the shaped hose.

9. The feeding device (1) according to any one of the preceding claims, wherein, The drive mechanism (50) includes an electric, pneumatic, or hydraulic actuator (52).

10. The feeding device (1) according to any one of the preceding claims, wherein, The drive mechanism (50) also includes two wheels (54, 56), the thrust element (40) is guided between the two wheels and at least one of the two wheels is driven.

11. The feeding device (1) according to claim 10, wherein a. At least one of the two wheels (54, 56), preferably both wheels (54, 56) have knurling, elastic coating or elastic ring, and / or b. One wheel (56) is arranged in the direction of the other wheel (54) in a preloaded manner, especially in a spring-preloaded manner.

12. The feeding device (1) according to claim 10 or 11 further includes at least one of the following sensors: a path sensor, a force sensor, a torque sensor and / or a speed sensor.

13. The feeding device (1) according to any one of the preceding claims, wherein, The length of the hose (20) is at least 50 cm, preferably at least 60 cm, and particularly preferably at least 70 cm.

14. An installation tool (5) for installing a connecting element (3), wherein, The installation tool (5) includes a feeding device (1) according to any one of the preceding claims.

15. The installation tool (5) according to claim 14, wherein, The discharge section (30) is arranged adjacent to the mounting head (7) of the installation tool (5), and the receiving section (10) is arranged away from the mounting head (7), so that the connecting element (3) can be discharged to the installation tool (5) through the discharge section (30), and in particular to the mounting head (7) of the installation tool (5).

16. A feeding method using the feeding device (1) according to any one of claims 1 to 13, comprising the following steps: a. (Step A) Feed the connecting element (3) to the receiving part (10) of the feeding device (1), b. (Step B) Position the connecting element (3) in front of the first opening (12) in the receiving part (10), such that the connecting element (3) is arranged in front of the flexible thrust element (40). c. (Step C) Move the thrust element (40) from the retracted state to the extended state, such that the connecting element (3) located in front of the thrust element (40) moves along the direction of the discharge section (30) via the hose (20), preferably via a shaped hose, and d. (Step D) When the connecting element (3) reaches the discharge section, the connecting element (3) is discharged, and the flexible thrust element (40) is moved from the extended position back to the retracted position.

17. An installation method using a feeding device (1) according to any one of claims 1 to 13 in conjunction with claim 6, comprising the following steps: a. (Step a) Feed the connecting element (3) to the receiving part (10) of the feeding device (1), b. (Step b) Position the connecting element (3) in front of the first opening (12) in the receiving part (10), such that the connecting element (3) is arranged in front of the flexible thrust element (40). c. (Step c) Move the thrust element (40) from the retracted state to the extended state, so that the connecting element (3) located in front of the thrust element (40) moves along the direction of the discharge section (30) through the hose (20), and d. (Step d) When the discharge section (30) is reached, the coupling element (3) is subjected to torque by means of the second drive mechanism (70) through the transmission mechanism (48) at the front end (42) of the thrust element (40), thereby installing the coupling element (3) to at least one component, wherein the torque (40) transmitted by the thrust element is preferably between 3 Nm and 30 Nm, and particularly preferably up to 15 Nm.

Images