JPH0737790Y2 - Device arrangement pitch change device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention is a component for changing the arrangement pitch of components supplied in an aligned state to a required assembly pitch corresponding to the assembled state on an assembly object. Of the arrangement pitch changing device.

(Prior Art) Conventionally, as such a device, according to Japanese Patent Publication No. 57-12652, a plurality of rotating bodies are arranged in parallel on a base, and each rotating body is biased with respect to its axis to hold a component holder. It is known that the mounting pitch is changed by rotating the rotating bodies forward and backward by a common rack by half, and the arrangement pitch of the holders is switched between a state corresponding to the component supply pitch and a state corresponding to the assembly pitch. ing.

(Problems to be solved by the invention) In the above, if the assembly pitch changes due to model change,
It is necessary to change the mounting position of the holder with respect to the rotating body, and also to change the mounting position of the rotating body with respect to the base so as not to change the supply pitch of the parts, which causes a problem of lacking model compatibility.

An object of the present invention is to provide a device capable of coping with a model change without requiring a troublesome position adjustment work.

(Means for Solving the Problem) In order to achieve the above object, in the invention of claim 1, a plurality of holding members for holding each component are aligned on the base plate in the arrangement direction of the components, and the arrangement direction is arranged respectively. Slidably supported on each of the holding members, a follower of the holding member is provided in a protruding manner, and a cam plate which is advanced and retracted toward the holding members in the direction orthogonal to the arrangement direction is provided on the base plate. A plurality of cam grooves that engage with the followers and slide the holding members in the arrangement direction are formed corresponding to the holding members.

In this case, as in the invention of claim 2, each of the holding members is
A support piece having a longitudinal direction in a direction orthogonal to the arrangement direction and a holder for a component attached to a central portion in the longitudinal direction of the support piece, and each holding member on each of the support pieces on the base plate. Slidably supported in the arrangement direction, the followers are provided in a pair in a projecting manner at both ends of the respective support pieces in the longitudinal direction,
It is preferable that the cam plates are provided in a pair corresponding to the one follower, and the cam plates are selectively advanced and retracted. When forming an oil chamber for applying oil to each holding member, it is desirable to provide an oil tank on the base plate and connect the oil chamber of each holding member to the oil tank via a hose. .

(Operation) When the cam plate is moved back and forth toward the holding member, each holding member is slid by the respective cam grooves through the follower in the component arranging direction by a predetermined stroke, and the arranging pitch of the holding members becomes the supply pitch of the component. To a state corresponding to the assembly pitch of the parts.

Even if the assembly pitch of parts changes due to model change, the required pitch can be changed simply by replacing the cam plate with one having a cam groove with a shape corresponding to this assembly pitch, without touching the holding member. It can handle model changes.

In particular, in the case of the invention of claim 2, by selectively using one cam plate and the other cam plate, it becomes possible to cope with a model change without requiring a cam put conversion operation.

By the way, when forming an oil chamber in each holding member, it is desirable to be able to constantly supply oil from the oil tank to the oil chamber, but there is no choice but to tamper with the holding member when changing the model as in the above-mentioned conventional technique. However, such a replenishment method cannot be adopted because a hose connected to the oil tank is connected to the oil chamber, which hinders the work.

However, in the present invention, since the model change can be dealt with without touching the holding member as described above, there is no problem even if the hose is connected to the oil chamber of the holding member, and therefore the oil chamber is constantly replenished with oil by the above method. It becomes possible.

(Embodiment) Referring to FIGS. 1 and 2, (1) is a machine base, (2) is an arrangement pitch provided with a plurality of holding members (3) for holding valves w for an engine, which is a component. The base plate of the changing device is shown, and the base plate (2) is a part of one of the longitudinal direction of the machine base (1) along the guide rail (2a) on the machine base (1) (hereinafter referred to as the X-axis direction). Supply position A
And the other component take-out position B so that the cylinder (2b) mounted on the machine base (1) can reciprocate. The cylinder (2b) is constituted by a rodless cylinder, and the slider (2b ₁₎ of the outer periphery is engaged with the lower surface of the engaging portion of the base plate (2) (2c).

Each of the holding members (3) is in a direction orthogonal to the X axis (hereinafter Y
It is composed of a support piece (4) whose longitudinal direction is the axial direction) and a holder (5) for the valve w which is erected at the center of the support piece (4) in the longitudinal direction. 3) to X
The guide rails (6) on the base plate (2) are axially aligned and slidably supported in the X-axis direction on the support pieces (4) respectively, and rollers are provided at both longitudinal ends of the respective support pieces (4). A pair of followers (7) (7)
On the other hand, a pair of cam plates (8) (8), which are long in the X-axis direction, are provided on both sides of the base plate (2) in the Y-axis direction so as to be movable back and forth in the Y-axis direction toward these holding members (3). A cam groove (9) for engaging a follower (7) of each holding member (3) on the same side as each cam plate (8) is provided on the lower surface of the cam plate (8) corresponding to these holding members (3). Formed multiple lines.

Each cam plate (8) engages with guide rails (10) (10) in the Y-axis direction provided at both ends in the X-axis direction of the base plate (2), as clearly shown in FIGS. 3 to 5. A pair of sliders (8a) (8a) is laid across and is detachably attached to the sliders (8a) (8a). Further, a crossbar (8b) is installed between the sliders (8a) (8a), and the crossbar ( The piston rod (8e) of the cylinder (8d) attached to the lower surface of the base plate (2) is connected to the connecting piece (8c) vertically provided at the intermediate portion of the cylinder (8b), and the piston rod (8e) of the cylinder (8d) is connected. So that the cam plate (8) can be moved back and forth in the Y-axis direction by the cylinder (8d). Then, the cylinders (8d) are provided in a pair for the one side cam plate (8) and the other side cam plate (8), and the both cylinders (8d) (8d)
Both cam plates (8) and (8) are selectively advanced and retracted by the selective operation of d).

Each of the holding members (3) has a spring (at a predetermined origin position) where a projecting piece (4a) attached to the end of the supporting piece (4) comes into contact with each stopper (4b) on the base plate (2). 4c)
The holders (5) of these holders (3) are arranged at equal pitches in the X-axis direction at this origin position.

The cam groove (9) of each cam plate (8) has its inner end in the Y-axis direction aligned with the arrangement pitch of the followers (7) of each holding member (3) at the origin position, and its outer end in the Y-axis direction. The cam plates (8) and (8) are formed so as to match the assembling pitch of the valve with respect to the cylinder head of the engine, and the pitch of the outer ends of the cam grooves (9) in the Y-axis direction is different. It is for another model with a different work W mounting pitch.

Then, when the base plate (2) is returned to the component supply position A, both cam plates (8) (8) are retracted outward in the Y-axis direction so that each cam groove (9) is moved to each follower (7). The holding member (3) to the origin position, and a holding jig (5) for each holding member (3) is held by a setting jig (not shown) that holds a plurality of valves in an equal pitch. w is inserted and set, then the base plate (2) is moved forward to the component take-out position B, and one cam plate (8) corresponding to the engine model is advanced inward in the Y-axis direction to move the cam plate (8) inward. ) Each cam groove (9) is engaged with each follower (7) to move each follower (7) so that the arrangement pitch of each holding member (3) matches the assembly pitch of the valve. A set not shown that has been changed to hold the valves in line with the assembly pitch. By received the valve w jig, and to assemble the valve by said set with a jig to the cylinder head being conveyed set in place.

In the figure, (11) is a proximity switch for detecting the inward and outward movement of each cam plate (8) in the Y-axis direction, and (12) is a photoelectric tube for detecting the attachment / detachment of the valve w to / from the holding member (3). Show.

As shown in FIG. 5, the holder (5) is a cylinder for inserting the stem of the valve w onto a base block (5a) which is positioned and screwed to each support piece (4) by a pin (5a ₁ ). It is configured by attaching the body (5b), and a blind plug (5b ₁ ) is screwed to the lower end of the tubular phase (5b), and the inside is configured as an oil chamber (5b ₂ ) for applying oil to the valve stem. Further, an oil tank (13) is mounted on one side of the base plate (2) via a bracket (13a), and the oil chamber (5b ₂ ) of each holder (5) is placed in the tank (13). It was connected via a hose (14) so that the oil chamber (5b ₂ ) could be automatically replenished with oil.

(Effect of the Invention) As is clear from the above description, according to the invention of claim 1, the position of the holding member holding the work is determined by the engagement of the follower and the cam plate, so that the positioning is reliable. Also, when changing the pitch of the work to a specific pitch due to the change of the machine model to which the work is to be assembled,
Since the holding member can be dealt with only by switching or exchanging the cam plate without exchanging or adjusting the holding member, and the holding height of the work does not change, it is not necessary to adjust the height on the receiving side of the work. Further, according to the invention of claim 2, it is possible to cope with the model change by the selective operation of the pair of cam plates, and there is an effect that the model compatibility is excellent. Further, according to the invention of claim 3, oil can be automatically replenished to the oil chamber of each holding member from the oil tank attached to the base plate, and in this case, even if a hose for supplying oil is connected to each holding member, Since the holding member does not have to be touched when changing the model as described above, compatibility with the model is not impaired.

[Brief description of drawings]

FIG. 1 is a plan view of an example of the device of the present invention, FIG. 2 is a side view thereof, FIG. 3 is an enlarged plan view of an essential part without an oil tank, FIG. 4 is a side view thereof, and FIG. FIG. 5 is a side view taken along the line VV of FIG. 3. w …… Valve (part), (2) …… Base plate (3) …… Holding member, (4) …… Supporting piece (5) …… Holder, (5b ₂ ) …… Oil chamber (7) …… Follower, (8) …… Cam plate (9) …… Cam groove, (13) Oil tank (14) …… Hose

Claims (3)

[Scope of utility model registration request] 1. An apparatus for changing an arrangement pitch of a plurality of parts supplied in an aligned state to a required arrangement pitch corresponding to an assembling state on an object to be assembled, wherein the parts are held on a base plate. A plurality of holding members are arranged in the arrangement direction of the parts and slidably supported in the arrangement directions, respectively, and followers of the respective holding members are provided so as to project from the holding members on the base plate. A cam plate that advances and retracts in a direction orthogonal to the arrangement direction is provided, and a cam groove that engages each follower on the cam plate and slides each holding member in the arrangement direction corresponds to these holding members. An arrangement pitch changing device for parts, which is characterized in that a plurality of lines are formed. 2. Each of the holding members comprises a support piece having a longitudinal direction in a direction orthogonal to the arrangement direction and a holder for a component attached to a central portion of the support piece in the longitudinal direction, and the holding plate is provided on the base plate. Each of the holding members is slidably supported on each of the support pieces in the arrangement direction, and the followers are provided in a pair so as to project at both ends in the longitudinal direction of each of the support pieces, so that the cam plate is provided with the cam plates. 2. The component arrangement pitch changing device according to claim 1, wherein a pair of the followers is provided corresponding to the two followers, and the two cam plates are selectively advanced and retracted. 3. An oil chamber for applying oil to a part is formed in each holding member, an oil tank is provided on the base plate, and the oil chamber of each holding member is connected to the oil tank via a hose. The arrangement pitch changing device for parts according to claim 1 or 2, characterized in that.