JPH0493129A - Part coupling device - Google Patents

Abstract

PURPOSE:To obtain agreement between a part and an engaging hole securely even if a part receive member comes in contact with the part by applying slide resistance to the part in a part hold section when a nut is coupled to a nut runner. CONSTITUTION:A part 3 is held in a part section of an advance and retraction type supply rod 4 in the condition where slide resistance is applied to it, and a part receive member 29 which has an engaging hole 32 of the part 3 is provided at the advance position of the supply rod 4. The part 3 is automatically fed to the predetermined section by the supply rod 4. Even if the part receive member 29 comes in contact with the part 3 and rotates, the part 3 does not rotate together with the part receive member 29 because slide resistance is applied to the part 3. It agrees with the engage hole 32 of the part 3, and proper engagement is done without corotation with the member 29. Also, if push members 24, 25 which move the part 3 toward the engaging hole 32 are provided, the supply rod 4 advances and stops, and then the part 3 is pushed out toward the engaging hole 32 by the push members 24, 25. It is possible to engage them securely.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a coupling device for parts, and is suitable for coupling a nut or bolt head to a nut liner or bolt runner.

(b) Conventional technology To explain a conventional example using a nut runner, the nut is held at rest by the hand of an operator on a nut holding device and is in a waiting state, and the head of the nut runner approaches it. and insert it into the nut hole of the head, then move the head to the desired location of the bolt,
The nut is tightened after the nut and bolt are coaxial.

Problems to be Solved by the E-Sai Invention In the case described above, if the head hits the nut because an appropriate braking force is not applied to the nut on the nut holding device, the nut will be damaged. The head rotates idly with the head and cannot be inserted into the nut hole of the head. On the other hand, since the nuts are manually set on the holding device, they are not very efficient in terms of manufacturing efficiency.

B) Means for solving the problem and its function The present invention was devised in view of the above-mentioned problems.
In the item mentioned above, the component is held in a state where sliding resistance is applied to the component holding part of the retractable supply rod, and a component receiving member having a fitting hole for the component is installed at the forward position of the supply rod. The feature is that the parts are automatically fed to a predetermined location by the supply rod, and even if the parts receiving member contacts the parts and rotates, the parts are provided with sliding resistance. The component does not collide with the component receiving member, and the component immediately fits into the fitting hole of the component, resulting in a normal fit.

Moreover, the invention of item 2 is different from the invention of item 1 in that it is provided with a pushing member for moving the component toward the fitting hole, and after the supply rod advances and stops, The extrusion member forcibly extrudes the component toward the fitting hole to obtain a reliable fitting alloy.

(e) Ji Biao Example First, a detailed explanation will be given according to the embodiment shown in Figs. be.

The supply rod 4 is moved forward and backward by an air cylinder 5, is housed in an outer cylinder 6, and is fixed to a stationary member 8 via a bracket Z. The supply rod 4 has an inner shaft 10 slidably assembled in a hollow outer shaft 9, and a U-shaped notch 11 is provided at the tip of the outer shaft 9 so that a second As shown in the picture, it has a bifurcated shape.

The shape and dimensions of the circular arc portion 12 are set so that the shaft portion 2 contacts the notch 110 circular arc portion 12.

A magnet (permanent magnet) 16 is embedded in the tip of the inner shaft 10, and its attraction force causes the shaft portion 2 to move into the arcuate portion 12.
is attracted, thereby providing sliding resistance and holding the deaf parts in place. Although shown only in FIG. 2, the magnet 16 is covered with a protection plate 21. A regulating pin 15 fixed to the inner shaft 10 protrudes outward from a long hole 16 in the stroke direction formed in the outer shaft 9, and the regulating pin 15 is moved through the elongated hole by the tension of a coil spring 17 inserted into the outer shaft 9. 16 on the left side. An air cylinder 18 is fixed to the outer circumference B,
A retaining piece 20 connected to the piston rod 19 projects outwardly in the outer cylinder 6 through a long hole 21 extending in the stroke direction. This retaining piece 20 meets the criteria 71. It is provided at a position where it can collide with the living bin 15.

A bracket 22kr is in contact with the outer 4-side 9, an air cylinder 26 is fixed thereon, and its piston rod 24 is disposed coaxially with the 1lIll1 part 2 as an extrusion member.

Further, the outer shaft 9 is provided with a stepped portion 67, with which the head 1 fits and the bolt 6 is positioned.

A joint pipe 25 is welded to the outer cylinder 6 via a bracket 26, and a supply hose 27 connected to a parts feeder (not shown) is fitted therein.

In order to force the magnetic force of the magnet 16 to strongly act on the bolt 6, it is appropriate to use stainless steel, which is a non-magnetic material, for the outer shaft portion, the inner shaft 10, the protection plate 14, the bracket 22, etc.

When the supply rod 4 moves forward by a predetermined distance, the bend 2 of the bolt runner 28, which is a part receiving part Q, is waiting coaxially with the bolt 6.

In Figure 1, due to space limitations, the bolt runner 28 is replaced by the joint pipe 25.
The head 29 is fixed to the tip of the operating shaft 6D,
The operating shaft 60 is given rotation and forward/backward movement by the rotation/advance/retreat unit 31 .

The head 29 has a hexagonal fitting hole 62 that can receive the head 1 with a pot, and a magnet (permanent magnet) 66 is buried in the bottom of the fitting hole if necessary. Yes, and a magnetic protection plate 64 is installed. A screw hole 66 is drilled in the mating component 65, and this screw hole 66
The nut runner 2d is arranged coaxially with the nut runner 2d.

Next, to explain the operation, FIG. 1 shows the supply rod 4.
When the bolt 6 is at its most receded position to the right, the shaft 2 of the bolt 6 that has been transferred from the supply hose 27 (use of compressed air is suitable) enters between the notches 110 and the magnet 16
This is the state in which the shaft portion 2 is pressed against the circular arc portion 12.

Therefore, when the supply rod 4 advances to the left due to the output of the air cylinder 5, the air cylinder 26 and the bolt 6 are
The supply rod 4 moves in the state shown in the figure, and stops advancing at the point where the bolt 6 and the fitting hole 62 become coaxial. At this time, the regulation bottle 15 is stopped in the vicinity of the engagement piece 20. Next, when the head 29 slowly rotates upward and the upper end surface of the head 29 comes into partial contact with the lower end surface of the head 1, the shaft portion 2 of the bolt 6 touches the arcuate portion 12. Since the head 1 is pressed and a sliding resistance is applied, only the head 29 rotates while the head 1 remains stationary, and the hexagon of the fitting hole 62 matches the hexagon of the head 1, causing the head 29 to rise. Accordingly, the head s1 fits into the fitting hole 52.

At this point, when the air cylinder 18 is activated and the retaining piece 20 is displaced to the right, it moves from the regulating bin 15 to the inner shaft 10.
As a result, the magnet 16 separates from the shaft portion 2, and the sliding resistance between the shaft portion 2 and the circular arc portion 12 disappears. When the supply rod 4 is retreated to the right by the air cylinder 5 at the same time as this disappearance or immediately after, the head 1 is moved into the fitting hole 62.
completely contained within.

In this state, the head 22 rises and enters the screw hole 56 from the position shown by the two-dot chain line, completing the screwing of the bolt.

Note that if the piston rod 24 is fully lowered while the bolt 6 is being attracted by the magnet 16, the shaft portion 2 will move above the arcuate portion 12'f! : It is pushed up while sliding, so
This prevents the axis of the bolt 6 from becoming tilted, which helps the bolt to enter the fitting hole 62 accurately.

Figure 6 shows the U-shaped notch in the previous embodiment as a circular hole 6.
8, and the operation etc. are the same as the previous one.

The embodiments shown in FIGS. 4 and 5 are examples in which a chuck 69 is installed at the tip of the supply rod 4, and the sliding resistance due to the clamping of the chuck is fully utilized. The supply rod 4 is not of the above-mentioned type but is solid, and has a pair of projecting pieces 40.41 at its tip, and a claw 46.47 is swung by a shaft 44.45 fixed to a support plate 42.43. movably supported. The claws 46, 47 have arc-shaped recesses 41:l, 49
is provided, and its lower side is formed with a tapered portion 50.51, as is clear from FIG. Coil springs 52 and 53 are inserted between the claw and the protrusion.

The supply hose 2 is connected to this chuck 69 in the same way as in FIG.
When the bolt 6 is sent in from 7, the shaft part 2 is smoothly received by the tapered part 50, 51, and the claw 46
．． 47t - It enters while expanding and stops in the state shown in Fig. 5. At this time, coil springs 52, 53
is slightly compressed, the reaction force is applied to the recesses 48 and 49.
In this state, sliding resistance is applied. Since the operation of this chuck 69 can be easily understood from the case of FIG. 1, detailed explanation is omitted.

In FIG. 6, the rod member 54 corresponding to the piston rod 24 in FIG.
e [A rod member 54 is fixed to the lower surface of the arm 56. An air cylinder 57 is fixed on the supply rod 4, and the tip of the piston rod 58 is at an angle t in contact with the cam surface 59 of the arm 56. A return spring 60 is inserted into the supply rod 4 and the °r arm 6 at the same time. A support stand 61 is provided to support the four ends of the supply rod 4.

When the piston rod 58 advances to the left and pushes the cam Ifr 59, the arm 56 rotates counterclockwise around the bin 55, and the rod member 54 acts to push down the component.

In the above embodiments, the parts are moved upward, but it is also possible to freely move the parts in the horizontal direction or in the F direction.

Furthermore, by bringing the piston rod 24 into full-surface contact with the shaft portion 2 as shown in FIG. 1, it is possible to obtain even a slight sliding resistance in the rotational direction.

Furthermore, the gamma hoses connected to each air cylinder are completely omitted from the drawings, and their operation can be easily controlled using normal sequence control.

(f) Effects According to the present invention, since the components are given sliding resistance in the component holding section, even if the component receiving member contacts the components while rotating, the components do not warp together. A match between the part and the fitting hole can be obtained reliably. Temporary holding of parts in the supply head can be done using a magnet system or a chuck system as shown in the figure, so parts can be fed there automatically, and it is not necessary for an operator to attach them manually. All of this can be avoided. Furthermore, by actuating the extrusion member, the entire part is coupled to the fitting hole:
It is possible to meet A.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall longitudinal sectional side view, FIGS. 2 to 4 are cross-sectional plan views, and FIG. 5 is a sectional view taken along line (6)-(5) of FIG. 4. , FIG. 6 is a side view. 4... Supply rod, 6... Component, 62... Fitting hole, 29... Component receiving member, 24. 54... Extrusion member.

Claims (2)

[Claims] (1) The component is held in the component holding part of the retractable supply rod with sliding resistance applied, and a component receiving member having a component fitting hole is installed at the forward position of the supply rod. Characteristic parts coupling device. (2) The component is held in the component holding section of the reciprocating supply rod with sliding resistance applied, and a component receiving member having a fitting hole for the component is installed at the forward position of the supply rod. 1. A component coupling device comprising: a push-out member for moving the component toward a fitting hole.