JPH071233Y2 - Carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a transfer device, which is used for transferring a work, for example, when a plug is press-fitted into an opening of a work such as a hollow casting part. The present invention relates to a transportation device.

[Conventional technology]

Generally, when a product having a hollow portion is manufactured by casting, for example, when forming a water jacket of a cylinder head or a cylinder block, a core is used.
For this reason, the outer wall of the water jacket is provided with a sand removing hole for removing sand from the core after casting. The sand removal hole is closed by pressing a bowl-shaped plug under pressure after sand removal.

By the way, conventionally, as shown in FIG. 8, the work such as the cylinder head is transferred from the first station (a) to the second and third stations (b) by a transfer device capable of intermittently feeding the work (1). ) (C) was sent intermittently. In addition, the work (1) has four holes (1a) (1b)
When (1c) and (1d) are formed at a constant pitch in the work transfer direction, the second station (b), which is a press-fitting station, corresponds to the holes (1a) to (1d) of the work (1). Then, four press-fitting punches (2a) (2b) (2c) (2d) are provided. Then, when the work (1) carried into the first station (a) is intermittently stopped at the second station (b), the press-fitting punches (2a) to (2d) are lowered all at once, and the work (1). The bowl-shaped plug (3) was press-fitted into each of the openings (1a) to (1d).

[Problems to be solved by the device]

According to the conventional transfer apparatus, since the work (1) is only intermittently fed at a constant pitch, the second station (b) corresponds to the holes (1a) to (1d) of the work (1). Since a plurality of press-fitting punches (2a) to (2d) are required, the cost is high.

The present invention has been proposed in view of the above problems, and an object of the present invention is to provide a transfer device that can linearly feed a work between stations in two stages.

[Means for Solving the Problems]

The present invention has been proposed in view of the above problems, and a plurality of positioning jigs, which are respectively installed at a plurality of stations provided on a straight line at equal intervals, and on which a work is placed, and a vertical jig. The transfer bar is arranged to be movable horizontally in the longitudinal direction at the moving and vertical moving ends, and at the time of vertical movement, the transfer bar delivers the work to the positioning jig of each station, and one side in the longitudinal direction of the transfer bar. A movable table installed horizontally movable in the longitudinal direction of the transfer bar; a transfer cylinder installed on the transfer table and having a rod tip connected to the transfer bar; and a transfer cylinder for horizontally moving the transfer bar; It is equipped with a feed cylinder that is installed in the vicinity and has the rod tip connected to the moving table, and that horizontally moves the transfer bar by a fixed pitch via the moving table and the transfer cylinder. The workpiece held on the conveyor bar in the station is fed by a fixed pitch in each station by horizontally moving the moving table by the feed cylinder, and then the workpiece is conveyed from each station to the next station by the conveyor cylinder. It is a thing.

[Action]

According to the present invention, a work sequentially conveyed to a plurality of stations on a straight line is fed at a constant pitch at each station by driving a constant pitch feed cylinder, and then conveyed from each station to the next station by the feed cylinder. It

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

1 to 7, the work (1) is the first
After being loaded into the station (a), it is sequentially linearly transported to the second, third, and fourth stations (b), (c), and (d). (11a) (11b) (11c) (11d) are concave grooves (12) installed in each of the stations (a) to (d).
The positioning jigs (11a) to (11d) are supported by appropriate means at predetermined intervals, and the work (1) is positioned and placed on the upper surface thereof. It (13) is a base installed below the positioning jigs (11a) to (11d), and (14) and (15) are a plurality of supports installed on the base (13). 14) (15)
It is installed between the positioning jigs (11a) to (11d).
(16) (16) is a plurality of support brackets which are provided on each support base (14) (15) in the width direction, and (17) (17) is a support bracket (16) (16) via a pivot. A plurality of rotation links that are rotatably and rotatably supported, and (18) and (18) are a plurality of support links that are rotatably connected to the upper ends of the rotation links (17) and (17) via a pivot shaft. , (19) (19) are support links (18)
A plurality of upper support rollers rotatably supported by the pivot (18), and a plurality of upper support rollers (20, 20) rotatably supported by the upper ends of the rotary links (17, 17) via the pivot. The upper support rollers of the upper and lower support rollers (19) (19) (20)
As shown in FIG. 6, (20) are vertically projected at a predetermined interval in parallel and project inward.

(21) is a groove (1) of the positioning jigs (11a) to (11d).
2) As shown in Fig. 7, is a long or narrow transfer bar that is loosely fitted so that it can be squarely moved in the longitudinal direction. This transfer bar (21)
Is a bar main body (22) integrally having protrusions (22a) (22b) along the lower edges of both side surfaces, and is fixed and fixed to the upper surface of the bar main body (22) at a constant pitch, and a plurality of bars are provided on the upper surface. It comprises a positioning pin (23) and a plurality of support plates (25) having a contact plate (24), and supports the ridges (22a) (22b) of the bar body (22) from the both sides of the above-mentioned upper and lower supports. Laura (1
9) (19) (20) (20) is supported so that it can be vertically held and horizontally moved at the vertically moving end in the longitudinal direction. (26) is an intermediate link which is rotatably fixed to the base end shaft of a rotary link (17) located at the front end in the longitudinal direction of the carrying bar and hung down, and (27) is each of the upper and lower support rollers (19) (19).
(20) A drive cylinder for moving the carrying bar (21) supported by (20) up and down. This drive cylinder (27) is
The support frame (2) arranged at the end of the base (13) in the longitudinal direction.
8) The upper support brackets (29) (29) are swingably supported through a pivot and are supported in a substantially horizontal posture. The rod (30) of the drive cylinder (27) is rotatably attached to the lower end of the intermediate link (26) via a pivot shaft.
The intermediate link (26) and the rotary links (17) and (17) are rotated by the projecting and retracting operation of (0), and the conveyance is supported by the upper and lower support rollers (19) (19) (20) (20). Bar (21)
Moves vertically. Reference numeral (31) shown in FIG. 3 is a mounting board fixedly mounted on the upper surface of the support base (15) installed at the longitudinal end of the carrying bar (21) so as to be adjacent to the brackets (16) and (16). The mounting board (31) is cantilevered forward in the longitudinal direction of the carrying bar (21), and the front plate (32a) and the rear plate (32b) are mounted on the front end and the rear end, respectively. (33) (33) are two guide rails arranged parallel to the work transfer direction on the upper surface of the mounting substrate (31), and (34) is slidable on the guide rails (33) (33). (35) (35) is a moving body installed in
4) Support brackets installed on the upper surface in the width direction, (36)
Is a transfer cylinder supported in a substantially horizontal posture so that it can swing on the support brackets (35) (35) via a pivot and can move integrally with the moving body (34). Of the rod (37) protruding toward the rear of the transport bar (21) is rotatably pivotally attached to the lower end of a mounting bracket (38) vertically provided at the center of the lower surface of the transport bar (21). ) The upper and lower support rollers (19)
The transport bar (21) supported by (19), (20) and (20) is horizontally moved in the longitudinal direction. (39) is a feed cylinder for moving the work (1) by the pitch between the holes, and the feed cylinder (39) is substantially in the center of the front plate (32a) of the mounting substrate (31). The rod (40) is attached and fixed to the front end face of the moving body (34) by horizontally projecting it forward and penetrating and fixing it. The projecting / withdrawing operation of the rod (40) of the feed cylinder (39) is transmitted to the transport bar (21) via the moving body (34) and the transport cylinder (36) that move integrally. The press-fitting punches (41) and (41) are arranged above the positioning jig (11b) of the second station (b) so that they can be moved up and down. Of the holes (1a) to (1d) of the work (1) positioned and held on the upper surface of the workpiece (1b), the holes (1b) and (1d) are provided so as to face the press-fitting punch (41) during the lowering operation. The bowl-shaped plug (3) is press-fitted into each opening of the work (1) at the tip of the (41).

The operation procedure of the present invention will be described below. The work (1) is conveyed from the first station (a) to the second and third stations (b) and (c), and the positioning jig (11) of each station (a) (b) (c) is transferred.
The workpieces (1) are positioned and held at regular positions in a) to (11c) respectively, and the holes (1b) (1d) of the workpieces (1) on the positioning jig (11b) of the second station (b) are held. Faces the press-fitting punches (41) (41). The rod (30) of the drive cylinder (27) is located at the retracted end, the rotary links (17) and (17) stand up in a state of being inclined rearward, and the transfer cylinder (36) and the feed cylinder (39). ), The rods (37) and (40) are located at the projecting ends, and the transport bar (21) is held at the retracting ends and the descending ends.

Then, in the above state, the press-fitting punches (41) (41) of the second station (b) are lowered, and the holes (1a) to (1d) of the work (1) on the positioning jig (11b) are removed. The bowl-shaped plug (3) is press-fitted into the openings (1b) (1d) by the press-fitting punches (41) (41). When the press fitting of the bowl-shaped plug (3) into the openings (1b) (1d) of the work (1) is completed, the press-fitting punches (41) (41) rise and return to their original positions. Then, the rod (30) of the drive cylinder (27)
Is projected, the intermediate link (26) is pressed, and the rotary links (17) and (17) rotate clockwise and stand up. By the rotation of the respective rotation links (17) (17), the upper and lower support rollers (19) (19) (20) (20) push up the transport bar (21) to the ridges (22a) (22b). Follow it and move forward.
The workpiece (1) on the positioning jigs (11a) (11b) (11c) is positioned on the support plate (25) of the transfer bar (21) while moving upward of the transfer bar (21) while being raised. Pin (23)
The workpiece (1) is held in a state of being positioned by the positioning jigs (11a) (11b) (11c). When the conveyor bar (21) is pushed up and held at the rising end, the rod (40) of the feed cylinder (39) retracts, and the moving body (34) gently moves along the guide rails (33) (33). Move forward and are located at the forward end. The transfer bar (21) is pulled forward through the transfer cylinder (36) by the movement of the moving body (34). Then, the transport bar (21) is supported by the upper and lower support rollers (19) (19) (20) (20), and is moved forward by the same distance as the pitch between the openings of the work (1). Move horizontally. By the movement of the transfer bar (21), the work (1) at each station (a), (b), and (c) is fed at a constant pitch in each station (a), (b), and (c), and the second station ( In b), among the holes (1a) to (1d) of the work (1), the holes (1a) (1c) where the plugs have not been press-fitted face the press-fitting punches (41) (41). Thus the work (1) is at each station (a)
When the conveyor bar (21) is stopped by being fed at a constant pitch in (b) and (c), the rod (3) of the drive cylinder (27) is
0) retreats. Then, the intermediate link (26) is pulled so that the rotary links (17) and (17) rotate backward (counterclockwise) and are held in a tilted state. By the rotation of the rotary links (17) and (17), Upper and lower support rollers (19) (19) (20) (2
(0) pushes down the transport bar (21) while pressing the ridges (22a) (22
The carrier bar (21) is moved rearward along b), and is held at the lower end. When the conveyor bar (21) is descending, the workpiece (1) on the support plate (25) of the conveyor bar (21) is positioned by the positioning jig of each station (a) (b) (c) during the descending operation. Positioned and placed on (11a), (11b) and (11c). At this time, the transfer bar (21) descends vertically,
The holes (1a) (1c) of the work (1) which are not press-fitted with the plugs are held below the press-fitting punches (41) (41) so as to face each other. After that, the press-fitting punches (41) (41) descend, and the holes (1) of the workpiece (1) on the positioning jig (11b) in which the plugs have not been press-fitted are inserted.
Bowl-shaped plugs (3) are pressed into a) and (1c), respectively. When the press fit of the bowl-shaped plug (3) into the respective holes (1a) to (1d) of the work (1) is completed in this way, the drive cylinder (27)
, The intermediate link (26) and the rotary links (17) and (17) respectively rotate clockwise,
By the rotation of each of the rotation rings (17) (17), the transfer bar (21) is pushed up in the same manner as above, and the work (1) is separated from the positioning jigs (11a) (11b) (11c). And is held on each support plate (25) of the transport bar (21).
Then, when the transfer bar (21) is pushed up and held at the rising end, the rod (37) of the transfer cylinder (36) retracts. Then, the transport bar (21) horizontally moves forward while being supported by the upper and lower support rollers (19) (19) (20) (20), and is held at the forward end, so that the transport bar (21) The work (1) held by the support plate (25) is transferred from each station (a) (b) (c) to the next station (b) (c).
It is conveyed to (d). When the transport bar (21) is held at the forward end, the rod (30) of the drive cylinder (27) retracts. By the withdrawal of the rod (30) of the drive cylinder (27), the transport bar (21) descends in the same manner as above and is held at the descending end. When the transport bar (21) is descending, each supporting plate (25) of the transport bar (21) is in the middle of the descent.
The work (1) above is at each station (b) (c) (d)
The positioning jigs (11b), (11c), and (11d) are positioned and placed at regular positions.

When the transport bar (21) is held at the lower end of the forward end position, the feed cylinder (39) and the rods (40) (37) of the transport cylinder (36) project. Above feed cylinder (39)
Of the transfer cylinder (36) installed on the moving body (34) at the same time that the moving body (34) is pressed by the protrusion of the rod (40) of the moving body (34) and moves along the guide rails (33) (33). The transport bar (21) is pressed by the protrusion of (37). Then, due to the projections of the rods (40) (37) of the feed cylinder (39) and the transfer cylinder (36), the transfer bar (21) is moved rearward and held at the original retracted end position.
The work (1) thus carried in to the first station (a) is sequentially moved to the second, third and fourth stations (b) (c) (d) by the circulating movement of the transfer bar (21).
After being transported to the fourth station (d), it is carried out from the fourth station (d), and in the second station (b), the holes (1a) (1b) (1) are fed by the pitch feed of the work (1).
c) The bowl-shaped plug (3) is press-fitted into (1d). The same operation as above is repeated.

In the above-mentioned embodiment, the carrying device according to the present invention is applied to the case where the plug is press-fitted into the work, but the present invention is not limited to this, and can be used as a carrying device in various devices.

[Effect of device]

According to the present invention, the work can be linearly fed between the stations in two stages by using the feed cylinder and the transfer cylinder. Therefore, for example, in the case where a bowl-shaped plug is press-fitted using a press-fitting punch into each hole of a work in which a plurality of holes are formed in a straight line at a constant pitch, the device of the present invention is used as a transfer device for this work. If used, after the work is pitch-fed at the same pitch as the pitch between the holes at the press-fitting station where the press-fitting punch is arranged,
It can be transported to the next station. as a result,
In the press-fitting station, it is possible to press-fit the plugs into the two openings with one press-fitting punch, the number of press-fitting punches in the press-fitting station can be reduced to half compared with the conventional one, and the structure is simple. Therefore, the cost can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of the device of the present invention, FIG. 2 is a schematic plan view, and FIG. 3 is a front view of essential parts of the device of the present invention.
FIG. 7 is a plan view with a part omitted in FIG. 3, FIG. 5 is a right side view with a part omitted in FIG. 3, FIG. 6 is a side explanatory view showing a supporting point of a carrying bar, and FIG. It is a side surface explanatory view which shows the positional relationship with a conveyance bar. FIG. 8 is an explanatory view showing a conventional plug press-fitting procedure. (A) (b) (c) (d) ... Station, (1) ...
… Work, (11a) to (11d) …… Positioning jig, (21)
…… Conveyor bar, (34) …… Movement stand, (36) …… Conveyor cylinder, (39) …… Feed cylinder, (37) (40) …… Rod.

Claims (1)

[Scope of utility model registration request] 1. A plurality of positioning jigs, which are respectively installed at a plurality of stations equidistantly arranged on a straight line, and on which a work is placed, and a vertical movement and a horizontal movement in a longitudinal direction at a vertical movement end. It is movably arranged, and when it moves vertically, it conveys the work to the positioning jig of each station, and it can move horizontally to one side in the longitudinal direction of the conveyor bar in the longitudinal direction of the conveyor bar. An installed moving table, a transfer cylinder installed on the moving table with its rod tip connected to the above-mentioned carrier bar, and horizontally moving the carrier bar, and a rod tip installed near the above-mentioned carrier table with the rod tip moving table. And a feed cylinder that horizontally moves the transfer bar by a fixed pitch via a moving table and a transfer cylinder.When the work is transferred, it is held on the transfer bar at each station. The transfer device is characterized in that the movable work is horizontally moved by the feed cylinder so that the work is moved at a constant pitch in each station, and then the work is transferred from each station to the next station by the transfer cylinder. .