JP2013067511A - Transfer device of parts supply unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer device of a part supply unit which can correspond to various types of the part supply units.SOLUTION: In the transfer device, a movable member 10 is reciprocally mounted to a stationary rail 9, and a base member 12 is fixed to the movable member 10, and a support member 13 for mounting the part supply unit 100 is fixed to the base member 12, and a driving means 16 for driving the base member 12 back and forth is mounted, and the parts supply unit 100 is fixed to the support member 13 through a joint member 20.

Description

  The present invention relates to a component supply unit moving device for supplying components by moving component supply units of various components to predetermined positions.

  Japanese Patent No. 4609672 discloses that a bolt received by a holding head is supplied to a welding electrode as a target location by the movement of the holding head. Here, a slide rail is used for the above movement.

Japanese Patent No. 4609672

  In the technique described in the above-mentioned patent document, the bolt received by the holding head is linearly moved and supplied to the welding electrode, and the member moving along the slide rail holds the function of receiving the bolt. Head. And in order to make a volt | bolt reach a welding electrode, it is made to raise with the raising / lowering air cylinder which provided the whole slide rail separately.

  When it is a device such as the above, when the parts supply format changes variously, such as when the bolt is inserted into the receiving hole which is the target location, or when the nut is matched with the guide pin which is the target location, The entire device needs to be rebuilt. Therefore, there is a problem that it takes time to prepare the apparatus and the cost increases.

  The present invention has been provided to solve the above-described problems, and an object thereof is to provide a moving device for a component supply unit that can be used for various types of component supply units.

  According to the first aspect of the present invention, the movable member is combined with the stationary rail in a state in which the movable member can advance and retreat, the base member is fixed to the movable member, and the support member for attaching the component supply unit is fixed to the base member, Drive means for advancing and retreating a base member is provided, and the component supply unit is attached to the support member via a joint member.

  When there are multiple parts supply locations, when the component supply unit completes component supply to the first supply location, the drive means then operates to move the movable member along the stationary rail by a predetermined amount. Thereafter, the parts are supplied to the second supply location by the operation of the parts supply unit. The same operation is continued after the third time.

  Since the component supply unit having such a function is fixed to the support member via the joint member, for example, it is possible to use a component supply unit for bolt supply by replacing it with a component supply unit for nut supply. It is possible to easily cope with changes in the type of parts. In particular, the parts supply unit collects the operations necessary for parts supply, such as receiving parts and moving them to the target location. It can be easily handled, and the simplification of the equipment structure and shortening of the work time required for the change can be effectively achieved. In the above replacement, the replacement work can be easily performed using the joint member.

  The invention according to claim 2 is the moving device for the component supply unit according to claim 1, wherein the driving means is attached to the base member at a location adjacent to the support member.

  Since the drive means is attached to the base member at a location adjacent to the support member, the base member, the drive means, and the component supply unit coupled to the support member integrally move forward and backward. In particular, since the three members of the base member, the support member, and the driving means are integrated in a compact manner, it becomes easy to attach the component supply unit via the joint member. That is, since the component supply unit has various shapes depending on the type of component, the supply location, etc., the component supply unit can be reduced by promoting the downsizing of the base member, the support member, and the driving means. This makes it easier to install.

  The invention according to claim 3 is the moving device for the component supply unit according to claim 2, wherein the tip end portion of the output shaft extending from the driving means is coupled to the stationary member.

  Since the three members of the base member, the support member, and the driving means are integrated and the tip of the output shaft of the driving means is coupled to the stationary member, the three members reliably move forward and backward along the stationary rail.

It is the side view of the whole apparatus, and a partial sectional view. It is the top view which shows the principal part of an apparatus, and a partial top view. It is a perspective view which shows a part of joint member. It is the top view and side view which show a base member, a supporting member, and a drive means. It is sectional drawing which shows a component supply unit.

  Next, an embodiment for carrying out the component supply unit moving device of the present invention will be described.

  1 to 5 show a first embodiment of the present invention.

  The parts in the present embodiment will be described.

  The component to be supplied is a bolt 1 and is inserted into a plurality of receiving holes 3 opened in the component 2. The bolt 1 includes a hexagonal head 4 and a shaft 5 integrated. The head 4 has a corner-to-corner dimension of 13 mm, and the shaft 5 has a diameter and length of 11 mm and 40 mm, respectively. The component 2 is a thick plate material in which a plurality of receiving holes 3 are opened at predetermined intervals.

  Next, the structure of the moving device will be described.

  A flat rectangular substrate 7 is fixed in a horizontal posture on a stationary member 6 such as a machine frame or a support substrate of the apparatus. A straight guide rail 8 is fixed to the substrate 7. The guide rail 8 is composed of a long stationary rail 9 fixed to the substrate 7 and a movable member 10 combined in a state in which the stationary rail 9 can advance and retreat. In order to prevent the movable member 10 from being detached from the stationary rail 9 even if a downward force is applied to the movable member 10, an engagement groove is formed on the lateral side of the stationary rail 9, as shown in FIG. The engaging piece of the movable member 10 is fitted in the engaging groove in a slidable state.

  A base member 12 made of a thick square plate is fixed to the lower surface of the movable member 10 by bolting or welding. As shown in FIG. 1B, a support member 13 extending in the vertical direction is fixed to one side of the base member 12. The support member 13 is a bar having a circular cross section, and is actually fixed to the base member 12 via a support plate 14. In addition, bolting or welding is employ | adopted as above-mentioned in fixing locations, such as a board | plate material demonstrated below.

  The support plate 15 is fixed to the end of the base member 12 in a posture extending in the vertical direction, and the front surface of the air cylinder 16 serving as driving means is fixed to this surface. As is clear from FIG. 1B, the support plate 15 is disposed at a location offset to the side opposite to the support member 13. Therefore, the air cylinder 16 is adjacent to the support member 13. Because of this positional relationship, the compactness of the base member 12, the support member 13, and the driving means 16 is promoted.

  Cover plates 17 are fixed to both ends of the substrate 7 in a vertical posture. The piston rod 18 of the air cylinder 16 penetrates through the support plate 15 and its tip is coupled to the cover plate 17. That is, the tip of the output shaft of the driving means is coupled to the stationary member. As a result, when the piston rod 18 of the air cylinder 16 advances or retreats, the movable member 10 advances and retreats along the stationary rail 9 by the reaction force. At the time of this advance and retreat, the base member 12, the support member 13, and the air cylinder 16 move together.

  Although the front surface of the air cylinder 16 is coupled to the surface of the support plate 15, the cylinder body of the air cylinder 16 may be fixed to the base member 12 directly or via a distance piece instead. That is, the air cylinder 16 which is a drive means is integrated with the base member 12 directly or indirectly.

  Next, the joint member will be described.

  In order to make the bolt 1 reach the receiving hole 3 which is a target location, a component supply unit 100 is arranged. The component supply unit 100 is attached to the support member 13 via the joint member 20. The joint member 20 is configured by a combination of a shaft member such as the support member 13 and a coupling piece that is firmly integrated by tightening the shaft member. The arrangement posture of the component supply unit 100 is set by a combination of positioning along the longitudinal direction of the shaft member and positioning for rotating the coupling piece in the circumferential direction of the shaft member.

  2A is a cross-sectional view taken along the line (2)-(2) of FIG. The coupling piece 21 made by processing a rectangular parallelepiped member is also illustrated three-dimensionally in FIG. A hole 22 having a circular cross section through which the support member 13 passes is formed in the vertical direction, and a slit 23 communicating with the hole 22 is provided, and a tightening force in a direction to reduce the space of the slit 23 is applied by the tightening bolt 24. The fastening bolt 24 is screwed in a direction that is perpendicular to the axis of the hole 22. Thereby, the outer peripheral surface of the support member 13 is firmly tightened, and the support member 13 and the coupling piece 21 are integrated. The fastening bolt 24 is loosened to rotate the coupling piece 21 or to be shifted in the axial direction of the support member 13 to fasten the fastening bolt 24 again at a predetermined location.

  Another hole 25 is formed in the coupling piece 21 in the horizontal direction, and a shaft member 26 having a circular cross section passing therethrough is fastened with the same structure as the fastening structure of the support member 22. A reference numeral 19 in FIG. 3 is a slit that communicates with the hole 25. A connecting piece 27 made of a rectangular parallelepiped member is welded to the shaft member 26, and a component supply unit 100 described later is tightened in a hole 28 provided there. In FIG. 2B, reference numeral 29 is a slit that communicates with the hole 28, and reference numeral 30 is a fastening bolt.

  By the combination of the shaft member and the coupling piece as described above, the position of each member constituting the joint member 20 is adjusted in various directions such as a vertical direction, a horizontal direction, an oblique direction, a rotation direction, and the component supply unit 100. Is set.

  Next, the component supply unit will be described.

  The component supply unit 100 is of a type extending obliquely downward from a set of the base member 12, the support member 13, and the air cylinder 16, or a type extending in the horizontal direction, depending on the type of component, the shape of the target location of supply, etc. Various types such as those of the type extending in the vertical direction are adopted. Here, it is the type extended diagonally downward.

  FIG. 5 is a cross-sectional view of the component supply unit 100. The bolt 1 delivered from the parts feeder 32 hits a stopper piece 34 provided at the end of the supply pipe 33 and stops. The stopped bolt 1 exits from the outlet opening 35 in the lateral direction and is held at the tip of the supply rod 36. The supply rod 36 advances obliquely downward and the bolt 1 is inserted into the receiving hole 3. This insertion is performed by eliminating the force that holds the bolt 1 at the tip of the supply rod 36.

  The force that holds the bolt 1 at the tip of the supply rod 36 utilizes the attractive force of the permanent magnet 37. In order to eliminate this attractive magnetic force, a structure in which the permanent magnet 37 is separated from the bolt 1 is employed. The supply rod 36 has an inner / outer double structure, and an inner shaft 39 is inserted into a hollow outer shaft 38 in a slidable state. A permanent magnet 37 is fixed to the tip of the inner shaft 39, and the permanent magnet 37 and the outer shaft 38 are aligned on one plane at the end of the supply rod 36 to form a close contact surface of the head 4.

  A regulating pin 40 extending in the diameter direction is fixed to the inner shaft 39 and protrudes to the outside from a long hole 41 opened in the stroke direction of the outer shaft 38. A compression coil spring 42 is interposed between the inner shaft 39 and the outer shaft 38, whereby a tension in the pushing direction is applied to the inner shaft 39, and this tension is caused by the restriction pin 40 hitting the lower end of the long hole 41. The positional relationship shown in FIG. 5 is set.

  The stopper member 43 is formed on one side of the distal end portion of the outer shaft 38, and the bolt 1 received by the stopper piece 34 is attracted by the permanent magnet 37 and passes through the outlet opening 35 and the distal end portion of the supply rod 36. Move to. At this time, the head 4 is received by the stopper member 43, and the relative position of the bolt 1 with respect to the supply rod 36 is determined.

  The entire supply rod 36 is accommodated in an outer cylinder 45 having a circular cross section, and a piston rod 47 of an air cylinder 46 attached to the outer cylinder 45 is coupled to the supply rod 36. An air cylinder 48 is fixed to the outer surface of the outer cylinder 45, and an engagement piece 50 is coupled to the piston rod 49. The engaging piece 50 protrudes into the outer cylinder 45 through a long hole 51 opened in the stroke direction of the outer cylinder 45. The relative positions of the engaging piece 50 and the restricting pin 40 are set so that they can abut after the advancement of the supply rod 36.

  Next, a joint structure between the joint member and the component supply unit will be described.

  As shown mainly in FIG. 2, the outer cylinder 45 is inserted into the hole 28 of the coupling piece 27 that is a part of the joint member 20, and the component supply unit 100 is fixed by tightening the tightening bolt 30. The component supply unit 100 is attached so that the bolt 1 is inserted into the receiving hole 3 in an inclined posture by adjusting the joint member 20. Specifically, the relative position between the support member 13 and the coupling piece 21, the relative position between the coupling piece 21 and the shaft member 26, the relative position between the coupling piece 27 and the outer cylinder 45, and the like are adjusted.

  Next, the operation of the component supply unit will be described.

  FIG. 5 shows a state where the bolt 1 is held by the permanent magnet 37 at the tip of the supply rod 36. The supply rod 36 is advanced by the air cylinder 46 and stops when the tip of the shaft portion 5 of the bolt 1 comes close to the receiving hole 3. When the engagement piece 50 is pulled back by the operation of the air cylinder 48 following this stop, the inner shaft 39 is pulled up while the engagement piece 50 abuts against the restriction pin 40 and contracts the compression coil spring 42. Since the permanent magnet 37 moves away from the bolt 1 due to such a displacement of the inner shaft 39, the suction holding force with respect to the bolt 1 substantially disappears, the bolt 1 moves away from the tip of the supply rod 36, and the shaft portion 5 receives it. It is inserted into the hole 3.

  In the above-described embodiment, the component supply unit 100 is in a suspended state. However, as shown in FIG. 4, the support member 13 may be extended upward. The other configuration is the same as that of the previous example including a portion not shown, and the same reference numerals are described for members having similar functions.

  It should be noted that an electric motor that performs forward / backward output can be employed instead of the various air cylinders. It is also possible to replace the permanent magnet with an electromagnet.

  The above-described operation can be easily performed by a generally employed control method. A predetermined operation can be ensured by combining an air switching valve that operates with a signal from the control device or the sequence circuit, a sensor that emits a signal at a predetermined position of the air cylinder, and transmits the signal to the control device.

  The operational effects of the first embodiment described above are as follows.

  When there are a plurality of receiving holes 3 into which the bolts 1 are inserted, the supply rod 36 of the component supply unit 100 advances, and the bolt insertion into the first receiving hole 3 is completed. Next, the air cylinder 16 is operated to move the movable member 10 along the stationary rail 9 by a predetermined amount. Thereafter, the supply rod 36 of the component supply unit 100 advances, and the bolt is inserted into the second receiving hole 3. Made.

  Since the component supply unit 100 having such a function is fixed to the support member 13 via the joint member 20, for example, the component supply unit for supplying bolts is replaced with the component supply unit for supplying nuts. Therefore, it is possible to easily cope with a change in the type of parts. In particular, since the parts supply unit 100 collects the operations necessary for bolt supply such as receiving the bolt 1 and moving to the receiving hole 3, it is possible to change the type of the parts simply by replacing the unit having such a function. It can be easily handled, and the simplification of the equipment structure and shortening of the work time required for the change can be effectively achieved. In the above replacement, the replacement work can be easily performed using the joint member 20.

  The air cylinder 16 serving as the driving means is attached to the base member 12 at a location adjacent to the support member 13.

  Since the air cylinder 16 is attached to the base member 12 at a location adjacent to the support member 13, the base member 12, the air cylinder 16, and the component supply unit 100 coupled to the support member 13 integrally move forward and backward. To do. In particular, since the three members of the base member 12, the support member 13, and the air cylinder 16 are integrated in a compact manner, it is easy to attach the component supply unit 100 via the joint member 20. That is, the component supply unit 100 has a variety of overall shapes depending on the type of component, the supply location, and the like. By promoting the compaction of the base member 12, the support member 13, and the air cylinder 16, This makes it easy to mount the component supply unit 100.

  A tip end portion of a piston rod 18 extending from the air cylinder 16 is coupled to the cover plate 17.

  Since the base member 12, the support member 13, and the air cylinder 16 are integrated, and the tip end of the piston rod 18 of the air cylinder 16 is coupled to the cover plate 17, the three members follow the stationary rail 9. Make sure to move forward and backward.

  As described above, according to the apparatus of the present invention, it is possible to cope with various types of component supply units. Therefore, it can be used in a wide range of industrial fields, such as an automobile body assembly process and a home appliance sheet metal assembly process.

DESCRIPTION OF SYMBOLS 1 Bolt 2 Parts 3 Receiving hole 4 Head 5 Shaft part 8 Guide rail 9 Stationary rail 10 Movable member 12 Base member 13 Support member 16 Air cylinder, drive means 20 Joint member 36 Supply rod 45 Outer cylinder 100 Component supply unit

Claims (3)

  The movable member is combined with the stationary rail in a state in which the movable member can be advanced and retracted, the base member is fixed to the movable member, the support member for attaching the component supply unit is fixed to the base member, and the driving means for moving the base member forward and backward An apparatus for moving a component supply unit, wherein the component supply unit is attached to the support member via a joint member.   The component drive unit moving device according to claim 1, wherein the driving unit is attached to the base member at a location adjacent to the support member.   3. A moving device for a component supply unit according to claim 2, wherein a distal end portion of an output shaft extending from said driving means is coupled to a stationary member.

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