DE102022101986B3 - ASSEMBLY GRIPPERS AND METHOD OF INSTALLING A BLADE FUSE INTO A VEHICLE FUSE BOX SLOT - Google Patents

Abstract

The present invention relates to an assembly gripper (100) for inserting a flat plug fuse (200) into a slot (300) of a fuse box (302) for a vehicle, the assembly gripper (100) having a direction transverse to an insertion direction (106) of the flat plug fuse ( 200) aligned pressure surface (102) and a spring-loaded holder (104) relative to the pressure surface (102) in the insertion direction (106), the holder (104) enclosing the pressure surface (102) at least on two opposite sides and in a spring-loaded position (112) protrudes beyond the pressure surface (102) in the insertion direction (106), the holder (104) being designed to hold the blade terminal fuse (200) in the spring-out position (112) on at least two opposite side surfaces (208) and during a plug-in movement (308) in the event of a collision with an interference contour (310) arranged next to the plug-in slot (300) against the plug-in direction (106) and to slide off the side surfaces (208), the pressure surface (102) being designed to protect the flat plug-in fuse (200) further into the intended slot (300).

Description

technical field

The present invention relates to an assembly gripper for inserting a flat plug fuse into a slot of a fuse box for a vehicle and a method for plugging a flat plug fuse into a slot of a fuse box for a vehicle.

State of the art

The present invention is described below mainly in connection with blade fuses for vehicles.

Blade fuses are installed in a vehicle fuse box. These blade-type fuses are plugged into slots in the fuse box in a uniform plug-in direction. The slots are designed as depressions in which the flat plug fuses are essentially completely accommodated. The flat plug fuses are arranged flat side to flat side close to one another in a particularly space-saving manner. A separating rib is then arranged between each two slots. Satellites or inserts that are plugged into the fuse box, in which individual blade fuses can be plugged in, are also possible. They can already be installed in the fuse box when the fuse box is fitted, but they still have to be fitted.

The flat plug fuses each have two blade contacts arranged in one plane and a melting area arranged between the blade contacts. The melting range defines a rated current of the blade fuse. The melting area is arranged within a housing made of an electrically insulating plastic material. The housing encloses a rear part of the blade contacts and serves as a handle for handling the blade fuse. The rated current is specified on the back of the blade fuse. The blade fuses are standardized and have different designs.

This is how the pamphlet shows DE 195 07 550 A1 a method for equipping a fuse box with electrical plug-in fuses together with a device for carrying out the method. The method is characterized in that the plug-in fuses are fed to an assembly head for inserting the plug-in fuses into sockets of the fuse box via a feed hose which opens into the assembly head and which is adapted in cross-section to the shape of the plug-in fuses, with air being used to convey the plug-in fuses through the feed hose a conveyor is conveyed through the feed hose.

JP 2001 - 202 868 A shows a fuse inserter. In the fuse setter, the fuses to be set in a fuse box are set in advance according to a set order. The fuse inserter includes biasing means for biasing the fuse gripped by the fuse inserter, with the biasing force sufficient to insert the fuse into the fuse box. In addition, the fuse inserter has a retraction mechanism for retracting the fuse in the direction opposite to the direction of insertion against the biasing force of the biasing means. The retraction mechanism is triggered if there is a problem inserting the fuses into the fuse box.

Blade fuses sit very tightly in the slots of the fuse box. A lot of force is required to plug and unplug the blade fuses to prevent them from shaking loose due to vehicle vibrations. Due to the deep seating in the slots, a special tool may be required to pull the spade fuses.

In production, the fuse boxes are fitted manually. The blade fuses are inserted and pressed into their sockets by hand. After loading, some of the blade fuses are not yet in their end position and are then pressed in by a press plate, which is pressed down to an end position that is queried by a sensor. Alternatively, they can also be brought to the end position with a minimum force and force monitoring.

Description of the invention

It is therefore an object of the invention to provide an improved method for inserting a flat plug fuse into a slot of a fuse box for a vehicle and a corresponding assembly gripper using means that are as simple as possible in terms of construction. An improvement here can relate, for example, to an acceleration of a production process and, as a result, to a reduction in production costs.

The object is solved by the subject matter of the independent claims. Advantageous developments of the invention are in the dependent claims, the description and the accompanying figures.

In the approach presented here, at least one blade fuse is automatically picked up, aligned with its intended slot and inserted into the slot up to its end position. An assembly gripper used for this purpose has no actively driven parts and is only attached to an at least two-axis positioning unit.

With the approach presented here, a conventional fuse box can be fully equipped automatically. The passive assembly gripper does not require any additional space next to the slot because it does not perform an actively controlled opening movement. A collision with an edge of the slot to be fitted or with a fuse already arranged in an adjacent slot is sufficient to detach the flat plug fuse from the assembly gripper.

As a result of the collision, a holder of the assembly gripper that had previously held the flat plug fuse on at least two side surfaces springs back and thus slips off the flat plug fuse, while an unsprung plunger presses the flat plug fuse further into its slot.

According to a first aspect of the invention, an assembly gripper is presented for inserting a flat plug fuse into a slot of a fuse box for a vehicle, the assembly gripper having a pressure surface aligned transversely to a plug-in direction of the flat plug fuse and a holder spring-loaded in the plug-in direction relative to the pressure surface, the holder encloses the pressure surface at least on two opposite sides and protrudes beyond the pressure surface in a spring-out position in the plug-in direction, the holder being designed to hold the blade fuse in the spring-out position on at least two opposite side surfaces and during a plug-in movement in the event of a collision with a next to the slot arranged interfering contour against the insertion direction and to slide off the side surfaces, wherein the pressure surface is designed to insert the blade fuse further into the intended slot push.

According to a second aspect of the invention, a method for inserting a blade fuse in a slot of a fuse box for a vehicle is presented, the blade fuse being held using an assembly gripper according to the first aspect of the invention and by a positioning movement of the assembly gripper on the blade for the blade fuse intended slot of the fuse box is aligned, wherein the flat plug fuse is inserted into the slot by a plugging movement of the assembly gripper in a plugging direction, wherein during the plugging movement the spring-loaded holder collides with an interfering contour of the fuse box or another flat plug fuse arranged next to the slot, springs in and is removed Side surfaces of the flat plug fuse slides, the flat plug fuse is pushed further into the slot by the plugging movement of the pressure surface until the flat plug fuse as intended is plugged into the slot.

An assembly gripper can be designed without its own energy supply and actuators. The assembly gripper can be purely passive and designed as an exchangeable attachment to a positioning device. The positioning device can have driven axes. For example, the positioning device can have two driven axes for a positioning movement and one driven axis for an insertion movement.

The assembly gripper can have a device for holding a blade fuse up to its slot and a device for pushing the blade fuse into the slot. The device for holding can be deactivated by a collision with an interfering contour, for example an edge of the slot or an adjacent flat plug fuse, in that it rests against the interfering contour and is deflected while the device for pressing is moved further by the positioning device until the flat plug fuse inserted in its end position in the slot. The device for holding can be referred to as a holder. The device for pressing can be referred to as a pressure surface.

The pressure surface can be arranged on an end face of an unsprung plunger of the assembly gripper. The pressure surface can be adapted to the respective design of the flat plug fuse to be plugged in. When the flat plug fuse is pushed in, the pressure surface presses on a back of the flat plug fuse.

The holder can be elastic. For example, an internal dimension of the holder in an empty state can be slightly smaller than a width of the blade fuse across its side faces. As a result, the holder is pushed apart slightly when it is attached to a blade fuse and clamps with a restoring force on the side surfaces of the blade fuse.

The empty assembly gripper can be aligned with a blade fuse provided and are moved towards the flat plug fuse in the plugging direction with an assembly movement. The protruding holder can be pushed over the flat plug fuse until the holder holds the opposite side surfaces of the plug fuse. The empty assembly gripper can be loaded automatically. The flat fuses can be made available, for example, by a shaker pot at an assembly station. The positioning device can position the assembly gripper over the assembly station and automatically pick up the next blade fuse with the assembly gripper. Through a repeated sequence of picking up and plugging in, the slots of the fuse box can be automatically filled one after the other. Different mounting grips can be used for different types of blade fuses.

An achieved insertion force at the end of the insertion movement can be measured. A minimum force may be required to insert the blade fuse as intended. The force can be measured, for example, by a load cell. The measured force can be compared to an intended force for a pass/fail comparison. The measured force can be documented in order to have proof of the insertion force for each fuse in the fuse box. Alternatively or additionally, the plugging movement can be monitored. For example, the insertion of the flat plug fuse can be classified as good if the assembly gripper has been moved to a predetermined minimum position. The predetermined minimum position can be arranged in front of an end stop of the blade fuse in the slot. As a result, a load on the fuse box can be reduced.

The holder can have two side parts that are spring-loaded independently of one another in the insertion direction. The pressure surface can be arranged between the side parts. The holder can be in two parts. Each side part can deflect independently of the other side part if it collides with an interference contour. The interfering contours can be arranged in different levels on the opposite sides of the blade fuse. For example, the interfering contour on one side can be a back surface of another flat plug fuse. On the other hand, the interfering contour can be the edge of the slot.

One of the side parts can also be spring-loaded in a clamping direction transversely to the plug-in direction. The clamping direction can be normal to the side surface of the blade fuse, on which the side part clamps. The side part can be pressed towards the other side part by a spring. A range of motion of the movable side part can be limited by a stop. For example, the range of motion can be limited to less than a millimeter. Due to the spring-loaded side part in the clamping direction, the clamping force of the holder can be varied by means of springs of different strengths.

The side part can be spring-mounted pivotably in the clamping direction using at least one torsion spring. The side part can be mounted so that it can rotate about an axis of rotation. the range of motion of the side part up to the stop can be so small that the movement within the range of motion can be assumed to be a straight line. Due to the torsion spring and the rotatable mounting, the mechanics of the assembly gripper can be very simple. A complex linear guide for the side part can thus be dispensed with.

An insertion bevel directed towards the pressure surface can be arranged at a front end of the holder. An insertion bevel can be designed as an inward chamfer on the holder. When picking up or equipping the assembly gripper with the blade fuse, the insertion bevel can slide over an edge between the side surfaces and the back of the blade fuse and open the holder via a wedge effect resulting on the insertion bevel until the holder is placed on the side surfaces and clamps on the side surfaces.

character list

• 1 eine Darstellung eines Montagegreifers gemäß einem Ausführungsbeispiel;
• 2 eine Darstellung eines Montagegreifers gemäß einem Ausführungsbeispiel; und
• 3 eine Darstellung eines Steckens einer Flachstecksicherung gemäß einem Ausführungsbeispiel.

An advantageous exemplary embodiment of the invention is explained below with reference to the accompanying figures. Show it:

• 1 a representation of an assembly gripper according to an embodiment;
• 2 a representation of an assembly gripper according to an embodiment; and
• 3 a representation of plugging a flat plug fuse according to an embodiment.

The figures are schematic representations and only serve to explain the invention. Elements that are the same or have the same effect are provided with the same reference symbols throughout.

Detailed description

1 shows an illustration of an assembly gripper 100 according to an embodiment. The assembly gripper 100 is designed to securely hold a blade terminal fuse for use in motor vehicles during a positioning process hold and automatically plug into a designated slot in a fuse box for a vehicle. The assembly gripper 100 is a purely mechanical tool. For use, the assembly gripper 100 is mounted on a robot and moved under computer control by the robot. The assembly gripper 100 has no controllable actuators.

The assembly gripper 100 has a pressure surface 102 and a spring-loaded holder 104 . In the installed state, the pressure surface 102 is aligned transversely, in particular perpendicularly, to a plug-in direction 106 of the blade terminal fuse or the slot in the fuse box. Dimensions of the pressure surface 102 are adapted to the dimensions of a back of the flat plug fuse. The dimensions of the pressure surface 102 thus differ from design to design of different blade terminal fuses. The pressure surface 102 is essentially rectangular here and corresponds to the elongated shape of the back of a flat plug fuse. The pressure surface 102 thus has two opposite wide sides and two opposite narrow sides. The pressure surface 102 is here an end face of a stamp 108 of the assembly gripper 100. The stamp 108 is part of a guide of the holder 104.

The holder 104 is movably mounted in the insertion direction 106 . The holder 104 is pressed into an extended position 112 by the spring force of at least one spring 110 . In the extended position 112 , the holder 104 protrudes beyond the pressure surface 102 in the insertion direction 106 . The extended position 112 is defined by stop surfaces on the ram 108 . In the extended position 112 of the holder 104 , the pressure surface 102 is set back behind the holder 104 in the insertion direction 106 .

The holder 104 extends along at least two opposite sides of the printing surface 102. The holder 104 here extends along the broad sides of the printing surface 102. The printing surface 102 is surrounded by the holder 104 at least along the two sides. Here, the holder 104 also extends partially along the narrow sides of the pressure surface 102. The holder 104 is designed to grip or clamp the flat plug fuse on at least two opposite side surfaces of the flat plug fuse. A clamping force of the holder 104 is aligned in a clamping direction 114 oriented transversely to the insertion direction 106 . The holder 104 can be in one piece. The clamping force is then generated by elastic deformation of the holder 104 . The holder 104 can then have at least one spring area, for example, which is elastically deformed while the flat plug fuse is being held.

To insert a blade fuse, the assembly gripper 100 with the blade fuse is moved by the robot in a plug-in movement aligned with the plug-in direction 106 . If the holder 104 hits an obstacle when it is being plugged in, it gets caught on the obstacle and springs in counter to the plug-in direction 106 . In a compressed position, a position of the holder 104 relative to the pressure surface 102 is defined by the obstacle. The pressure surface 102 moves further with the rest of the assembly gripper 100 in the insertion direction 106. As a result, the pressure surface 102 is less and less behind the holder 104. The holder 104 slips off the side surfaces of the blade fuse. The holder 104 can also stand back behind the pressure surface 102 . If the holder 104 is arranged essentially flush with the pressure surface 102, the previously clamped or held blade fuse is released.

In one embodiment, the holder 104 is divided into two side parts 116 . The two side parts 116 are spring-loaded independently of one another in the insertion direction 106 . The side parts 116 are arranged on opposite sides of the printing surface 102 . To hold the blade fuse, the side parts 116 are pushed apart elastically. The side parts 116, which are spring-loaded independently of one another, can be deflected to different extents. If, for example, one side part 116 hits an obstacle and the other does not, then only the side part 116 hitting the obstacle deflects.

In one embodiment, one of the side parts 116 is movably mounted in the clamping direction 114 and is pressed against the side of the plunger 108 by at least one spring. The clamping force is provided by elastic deformation of the spring. The other side part 116 is guided by a linear guide in the insertion direction and cannot recede in the clamping direction 114 . The side part 116, which is not spring-loaded in the clamping direction 114, thus defines a lateral position of the flat plug fuse in a repeatable manner.

In one exemplary embodiment, the springs are torsion springs 118. The side part 116, which is movably mounted in the clamping direction 114, is rotatably mounted at the foot of the stamp 108 about an axis of rotation 120 and is pressed against the stamp 108 by the torsion springs 118. A stop 122 limits a range of motion of the side part 116 to approximately one millimeter. Within the range of movement, the movement of the side part 116 in the clamping direction 114 can be regarded as linear. The torsion springs 118 are arranged at the foot of the stamp 108 and thus require no space in the area of the side parts 116 . The assembly gripper 100 can thus be made very slim and can be used in a limited assembly space.

In one exemplary embodiment, the holder 104 or at least one side part 116 has an insertion bevel 124 on an edge directed toward the pressure surface 102 . The insertion bevel 124 collides with at least one of the edges of the spine of the flat fuse when a new flat plug-in fuse is picked up. The edge of the back slips over the insertion bevel 124 and the holder 104 or the side parts 116 are pushed apart in the clamping direction 114 and the clamping force is generated. When the edge of the back has slipped over the insertion bevel, the holder 104 or the side parts 116 grip the blade fuse on the side surfaces of the blade fuse.

2 shows an illustration of an assembly gripper 100 with a blade fuse 200 held. The assembly gripper 100 essentially corresponds to the assembly gripper from FIG 1 . A blade fuse 200 is held by the holder 104 here. A back 202 of a housing 204 of the flat plug fuse 200 is arranged on or at a small distance from the pressure surface of the assembly gripper 100 and covers it here. The holder 104 presses with the clamping force 206 in the clamping direction 114 on side surfaces 208 of the housing 204.

A clamped part of the side faces 208 is arranged here on a projecting edge of the housing 204 running around the back 202 . The side faces 208 protrude beyond the holder 104 . Two knife contacts 210 of the blade terminal fuse 200 protrude from the housing 204 at the end of the side surfaces 208 in the insertion direction 106.

3 shows an illustration of plugging in a flat plug fuse 200 according to an embodiment. The blade fuse 200 is automatically inserted into a slot 300 of a motor vehicle fuse box 302 using an assembly gripper 100 according to the approach presented here. The assembly gripper 100 essentially corresponds to the assembly gripper in FIGS 1 and 2 . The assembly gripper 100 is attached to a positioning device 304 and is moved by the positioning device 304 under computer control.

The positioning device 304 aligns the assembly gripper 100 in a Z-direction of the positioning device 304 above the slot 300 provided. The Z-direction corresponds to the insertion direction 106. For alignment, the positioning device 304 moves the assembly gripper 100 with the flat plug fuse 200 held in a positioning movement 306 in an XY plane of the positioning device. The positioning movement 306 is thus aligned transversely to the insertion direction 106 . The aligned assembly gripper 100 is then moved with an insertion movement 308 in the insertion direction 106 in the direction of the slot 300 and the blade terminal fuse 200 is moved into the slot 300 with the blade contacts first.

In the course of the insertion movement 308, the holder 104 of the assembly gripper 100 collides with an interfering contour 310. Here the interfering contour 310 is a back 202 of a blade fuse 200 already inserted into an adjacent slot 300. The holder 104 stops at the interfering contour 310 and now springs against the Plug-in direction 106, while the pressure surface with the flat plug-in fuse 200 is moved further on the plug-in movement 308. The holder 104 slides off the side surface of the blade fuse 200 and the pressure surface pushes the blade fuse 200 out of the holder 104 and further into the slot 300 . The holder 104 is now in a compressed position.

The plugging movement 308 ends when the flat plug fuse 200 has reached its intended place. For this purpose, a path of the insertion movement 308 can be monitored. Alternatively or additionally, an insertion force 312 can be monitored. The path can be measured by a path measuring system of the positioning device 304 and compared with a stored setpoint. A result of the comparison enables a good/bad distinction to be made at the end of the plugging movement 308. The plugging force 312 can be measured, for example, by a force measuring device 314 between the assembly gripper 100 and the positioning device 304. The insertion force 312 can be measured at the end of the insertion movement 308 and compared with a target value. A result of the comparison enables a good/bad distinction to be made at the end of the insertion movement 308. In addition, a profile of the insertion force 312 over the insertion movement 308 can be recorded. The history can contain information about the entire mating process.

In one exemplary embodiment, the holder 140 is divided into two and the two side parts 116 can deflect independently of one another if they collide with an interference contour 310 . Here, a side part 116 collides with the back 202 of the adjacent blade fuse 200. The other side part 116 collides with an edge 316 of the slot 300. The back 202 projects beyond the edge 316 in the insertion direction 106. That's why they help the side parts 116 different widths. The deflected positions of the side parts 116 are therefore dependent on the respective interfering contour 310.

In one exemplary embodiment, the assembly gripper 100 is automatically fitted with a new flat plug fuse after the flat plug fuse 200 has been plugged in, and the latter is plugged into another slot 300 of the fuse box 302 . For this purpose, the positioning device 304 lifts the assembly gripper 100 after insertion with a retraction movement directed counter to the insertion direction 106 from the inserted flat plug fuse 200 and moves the empty assembly gripper with a further positioning movement, in particular in the XY plane, to an assembly station. When it is lifted off, the holder 104 springs back out of the compressed position into the expanded position until it lifts off the interfering contour 310 . At the assembly station, the assembly gripper 100 is aligned with the back of the new blade fuse and is lowered onto the new blade fuse with an assembly movement. The assembly movement takes place in the plug-in direction of the new blade fuse. During the assembly movement, the spring-loaded holder 104 is pushed onto the side surfaces of the new flat plug fuse. Sliding on is simplified by the insertion bevels of the holder 104. When pushed on, the insertion bevels slide over the edges of the spine and the holder is widened in the clamping direction. The clamping force on the side surfaces is generated by a restoring force of the holder or by springs deformed when being pushed on, and the blade fuse is held securely by the holder 104 . The assembly movement ends when the pressure surface touches the back of the new blade fuse. Alternatively, the loading movement can end when there is still a small distance between the spine and the printing surface. In this way, the effect of force on the assembly station can be reduced. After the holder 106 has been slid on, the assembly gripper 100 with the clamped new flat plug fuse is pulled back in the opposite direction to the plug-in direction and is aligned with the other slot 300 with a new positioning movement 306 .

In the course of the subsequent insertion movement 308, the flat pin fuse touches a contour of the other slot 300. If there is a distance between the back and the pressure surface, the flat pin fuse stops if a frictional force between the contour and the flat pin fuse is greater than a frictional force between the holder 104 and the side faces. The blade fuse remains in place until the pressure surface of the assembly gripper 100 is in contact with the back.

In other words, a mechanical assembly gripper for the automated insertion of blade-type vehicle fuses is presented. With the approach presented here, fuses can be automatically plugged into the fuse box even if there is an extremely small or no distance to one another. Slow and error-prone manual plugging is no longer necessary.

The safety gripper is based purely on spring force in the interaction of different springs. The jaws that initially hold the fuse collide with the interfering contour of the fuse box and spring away to the rear. The stamp can now push the fuse into the fuse box.

Alternatively, the automated safety plugging can be carried out with pneumatic grippers. These require space on the longer side of the fuse so that they can be opened again after the fuse has been inserted. A minimum distance between the fuses is therefore required so that these grippers can be used. The distance required for this is available in very few fuse boxes. Therefore, they are usually loaded by hand. The gripper presented here, which works purely with spring force, is significantly faster than a pneumatic gripper due to the control times of the pneumatics. With the spring-loaded gripper, the fuses can be automatically inserted faster and more error-free.

Previous solutions are comparatively slow and often cannot mount all the fuses in a fuse box because there are interfering contours or the distances between the fuses are too small. They can therefore only be used for certain boxes that meet the necessary minimum distances of four to five millimeters, for example.

The spring-loaded gripper presented here differs from other grippers for fuses in that it works purely with spring force. Four compression springs are used to lift the jaws. Two torsion springs are used to pivot the movable jaw, which hold the fuses between the two holding jaws. The guides are constructed in such a way that the guide axis moves in the bushing, which is also the base of the punch.

The spring-back jaws ensure a defined position and secure hold of the fuse up to the fuse box. The jaws spring back due to a collision when inserting the fuse. The jaws allow two fuses to be plugged in next to each other without any distance between them.

The stationary stamp presses the fuse into the fuse box with the predefined force of the linear axis or the robot.

The torsion spring provides the necessary gripping force or lateral contact pressure by clamping the fuse between the two spring-loaded jaws. The torsion spring opens via the chamfers on the gripper jaws.

When inserting the fuse, the robot moves with the fuse directly over the position where the fuse is to be inserted and then moves linearly in the Z direction towards the fuse box. The jaws of the gripper with the straight surface on the top collide with the interfering contours of the fuse box or with the adjacent fuses. This collision pushes back the spring-loaded jaws. The fixed plunger of the gripper then pushes the fuse into the fuse box. The jaws are no longer required at this point, since the position of the fuse is already defined by the fuse box. Reclaiming the jaws also ensures that the fuse can no longer be pulled out when the robot drives away. In theory, the process can take place at the maximum traversing speed of the robot or the axis system, since the purely mechanical gripper does not require any control times. The grab can now pick up a new fuse.

To pick up a fuse, the fuse gripper mounted on the robot or the linear system moves directly over the fuse provided by a separator (step conveyor, etc.), and makes a linear movement in Z in the direction of the fuse. As a result, the chamfers of the jaws of the gripper collide with the safety device and the gripper jaw is pressed against the torsion spring. The spring-loaded gripper jaw moves slightly to the side and clamps the fuse. The gripper now has the fuse firmly between the two jaws and can move away from the pick-up position.

Since the devices and methods described in detail above are exemplary embodiments, they can be modified to a large extent in the usual way by a person skilled in the art without departing from the scope of the invention. In particular, the mechanical arrangements and the size ratios of the individual elements to one another are merely exemplary

Reference List

100

assembly gripper

102

printing surface

104

holder

106

mating direction

108

Rubber stamp

110

Feather

112

extended position

114

clamping direction

116

side part

118

Leg spring

120

axis of rotation

122

attack

124

lead-in bevel

200

blade fuse

202

Move

204

Housing

206

clamping force

208

side face

210

blade contact

300

slot

302

fuse box

304

positioning device

306

positioning movement

308

mating motion

310

interference contour

312

insertion force

314

force measuring device

316

edge

Claims (8)

Assembly gripper (100) for inserting a flat plug fuse (200) into a slot (300) of a fuse box (302) for a vehicle, the assembly gripper (100) having a pressure surface (102) aligned transversely to an insertion direction (106) of the flat plug fuse (200) and a holder (104) spring-loaded in the plug-in direction (106) relative to the pressure surface (102), the holder (104) enclosing the pressure surface (102) at least on two opposite sides and in a spring-loaded position (112) in the plug-in direction ( 106) protrudes beyond the pressure surface (102), the holder (104) being designed to hold the flat plug-in fuse (200) in the extended position (112) on at least two opposite side surfaces (208) and during a plug-in movement (308). a collision with an interference contour (310) arranged next to the slot (300) against the insertion direction (106) and to slide off the side surfaces (208), the pressure surface (102) being designed to push the flat plug fuse (200) further into the intended slot (300 ) to insert. Assembly gripper (100) according to claim 1 In which the holder (104) has two side parts (116) which are spring-loaded independently of one another in the insertion direction (106), the pressure surface (102) being arranged between the side parts (116). Assembly gripper (100) according to claim 2 , wherein one of the side parts (116) is also spring-loaded transversely to the insertion direction (106) in a clamping direction (114). Assembly gripper (100) according to claim 3 , wherein the side part (116) is also spring-mounted using at least one leg spring (118) so that it can pivot in the clamping direction (114). Assembly gripper (100) according to one of the preceding claims, in which an insertion bevel (124) directed towards the pressure surface (102) is arranged at a front end of the holder (104). Method for plugging a flat plug fuse (200) in a slot (300) of a fuse box (202) for a vehicle, wherein the flat plug fuse (200) using an assembly gripper (100) according to one of Claims 1 until 5 is held and is aligned by a positioning movement (306) of the assembly gripper (100) at the slot (300) of the fuse box (302) provided for the flat plug fuse (200), the flat plug fuse (200) being oriented by a plugging movement (308) of the assembly gripper ( 100) is inserted into the slot (300) in a plugging direction (106), with the spring-loaded holder (104) colliding with an interference contour (310) arranged next to the slot (300) during the plugging movement (308), springing in and deflecting from side surfaces (208) of the flat plug fuse (200) slides off, the flat plug fuse (200) being pushed further into the slot (300) by the plugging movement (308) from the pressure surface (102) until the flat plug fuse (100) is inserted into the slot (300) as intended. is plugged in. procedure according to claim 6 , wherein the unequipped assembly gripper (100) is aligned with a blade fuse (200) provided and is moved in the insertion direction (106) with an assembly movement to the blade fuse (100), the protruding holder (104) being pushed over the blade fuse (200). until the holder (104) holds the opposite side faces (208) of the blade fuse (200). Method according to one of Claims 6 until 7 , in which an achieved insertion force (312) is measured at the end of the insertion movement (308).

Images