JPH0350087Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a one-way workpiece conveying device that conveys a workpiece in forward motion.

[Prior Art] Conventionally, there has been a one-way workpiece conveying device that conveys a workpiece as it moves forward. This one-way work transfer device includes a base, a fixed member fixed to the base and having a guide section extending in a fixed direction, and a workpiece interposed between the base and the fixed member that can freely move back and forth along the guide section. A device is known that includes a conveying member.

In this one-way workpiece conveyance device, when a workpiece conveyance member carrying a workpiece moves forward, the workpiece is conveyed, the workpiece is unloaded at the place where it has advanced, and the workpiece is left at the place where it has advanced. Then, when the workpiece conveyance member retreats, the workpiece conveyance member returns to its original position while leaving the workpiece at that position.

By the way, in this one-way workpiece conveyance device, when the moving speed of the workpiece conveyance member is increased in order to improve production efficiency, it is not possible to reliably unload the workpiece from the workpiece conveyance member at the advanced location, and as a result, the workpiece The workpiece may not be able to be left behind, and the workpiece transfer member may return to its original position with the workpiece still placed on the workpiece transfer member.

[Problems to be solved by the invention] The present invention was conceived in view of the above-mentioned circumstances, and its purpose is to engage the first swinging arm and the second swinging arm to move the first swinging arm forward. Lifting the swinging arm, disengaging the first swinging arm and the second swinging arm when retracting, lowering the first swinging arm,
Thereby, it is an object of the present invention to provide a one-way workpiece conveyance device which can eliminate the problem of the workpiece conveyance member returning to its original position with the workpiece placed thereon when retracting.

[Means for Solving the Problems] A one-way workpiece conveying device according to the present invention includes a base and a substantially horizontal workpiece that is fixed to the base and has an upwardly inclined surface at one end and a downwardly inclined surface at the other end. It is composed of a fixed member having a guide section that extends along the base, and a workpiece transfer member that is interposed between the base and the fixed member and can freely move back and forth along the guide section, and the workpiece transfer member moves forward along the guide section. and a stand part having a second shaft which is arranged so as to be freely retractable and which is provided on the forward side of the horizontal shaft type first and second shafts, a work holding part formed at the tip part on which a work is placed, and a work holding part. The base end is pivoted to the first axis of the base so as to be swingable in the forward and backward direction of the base, and the distal end is pivoted in the forward and backward direction of the base. It has a first swinging arm facing to the side, a rolling element that rolls along the guide section at the distal end, and an engaging section that engages with the engaged section, and the base end that is connected to the second shaft of the base section. The arm is pivotably supported in the forward and backward direction of the base, and has an arm length that reaches the engaged portion of the first swing arm, and as the base moves forward, the rolling element moves up the slope. From there, it ascends to the guide section and travels along the guide section, and as it ascends, the rolling element swings in the opposite direction to the advancing direction of the platform, and the engaging section pushes up the engaged section of the first swing arm. The workpiece holding part of the first swinging arm is pushed up, and when retracting, the rolling element ascends from the descending slope to the guiding part and travels along the guiding part, and as it ascends, the rolling element moves in the opposite direction to the retracting direction of the table part. and a second swinging arm that swings to disengage the engaged part and the engaged part and does not lift the workpiece holding part of the first swinging arm. It is.

The workpiece conveyance member includes a table, a first swing arm, and a second swing arm.
It consists of a swinging arm. The platform can be moved forward and backward by a cylinder device, an electric motor, a roller device, etc.

[Function] When the platform moves forward, the rotor of the second swing arm climbs from the ascending slope to the guide section, thereby causing the second swing arm to move in the opposite direction to the direction in which the platform moves forward. The engaging part of the second swinging arm lifts up the engaged part of the first swinging arm, thereby lifting and conveying the workpiece with the workpiece holding part of the first swinging arm.

On the other hand, when the platform moves backward, the rotor of the second swing arm climbs up the guide section from the descending slope.
The second swing arm swings in a direction opposite to the backward direction of the base, the engaged part of the first swing arm and the engaged part of the second swing arm are disengaged, and the first The workpiece holding portion of the swinging arm remains lowered.

[Example] A one-way conveyance device according to the present invention will be explained according to an example shown in FIGS. 1 to 7.

(Structure) The one-way conveyance device according to this embodiment is a device for conveying a skid-shaped workpiece W, and includes a base 1,
It is composed of a fixed member 3 fixed to the base 1 and having a guide part 30 extending in a fixed direction, and a workpiece conveying member 4 that can freely move back and forth along the guide part 30.

As shown in FIG. 5, the base 1 includes a horizontal conveyor group 10 driven by a drive device 10a such as a hydraulic motor through a shaft 10b, and a vertical conveyor group formed by a large number of rollers 11a. 11
, a stopper device 12, a grindstone device 13, a brush device 14, a centering device 15 for moving the workpiece W to a reference position, a grinding slide base 16 for grinding the end surface of the workpiece W,
A clamp cylinder device 17 for preventing the workpiece W from moving, and a guide rail 1 for guiding the workpiece W along the grindstone device 13 and the brush device 14.
8.

As shown in FIG. 7, the grindstone device 13 includes a grindstone 130 and an endless member 131a.
It has a motor 131 that rotates it by scratching.

The brush device 14 includes a drum 140 and a drum 1.
Three brush bodies 14 rotatably arranged at 40
1, and a motor 142 that rotates the drum 140 by using an endless member 142a.

The fixing member 3 is fixed to the base 1. As shown in FIG. 1, the fixing member 3 has a guide portion 30 extending substantially horizontally. The guide portion 30 includes an upwardly inclined surface 30a at one end and a downwardly inclined surface 30a at the other end.

The workpiece conveying member 4 is interposed between the base 1 and the fixing member 3. As shown in FIG. 1, the workpiece conveying member 4 according to the present embodiment includes a platform 400 that is disposed so as to be able to move forward and backward along the guide section 30 by a cylinder device 411, and a first swing arm. 431 and a swinging member 430 having a second swinging arm 432.

As shown in FIG. 1, a bracket 402 that pivotally supports a horizontally shaped first shaft 401 is fixed to the platform 400, and furthermore, a horizontally shaped first shaft 401 is provided at a predetermined distance from the first shaft 401. A bracket 404 that pivotally supports the second shaft 403 is fixed.

The swinging member 430 includes a first swing arm 431 located on the rear 400a side (the forward direction side) of the platform 400 and swingably supported on the first shaft 401;
The second shaft 4 is located on the forward side 400b of the platform 400.
A second swing arm 43 pivotably supported on 03
It is composed of 2. The first swing arm 431 and the second swing arm 432 swing in the forward and backward direction of the platform 400.

The workpiece holder 405 is used to place the workpiece W, is made of a rubber material, and is fixed to the tip of the first swing arm 431 . Of the tip of the first swing arm 431, the work holding part 401
The back side of is an engaged portion 415. A roller 435 as a rotatable roller and an engaging portion 433 that can be engaged with the engaged portion 415 are formed at the tip of the second swing arm 432 . here,
The arm length of the second swing arm 432 is such that its engaging portion 433 reaches the engaged portion 415 of the first swing arm 431 by swinging.

(Operation, Effect) Now, when using the one-way workpiece conveyance device according to the present embodiment, first, the workpiece W is conveyed to a fixed position by the horizontal conveyance device 10 and the vertical conveyance device 11 of the base 1, Place it there.

Thereafter, the piston rod 411a of the cylinder device 411 moves forward in the direction of arrow A1. But the second
Until the rollers 435 of the swinging arm 432 reach the ascending inclined surface 30a of the guide section 30, the engaged part 415 of the first swinging arm 431 and the second swinging arm 432
It does not engage with the engaging portion 433 of.

Further, when the piston rod 411a of the cylinder device 411 moves forward in the direction of arrow A1, the base portion 40
0 further moves forward, and as the platform 400 moves forward, the rollers 435 of the second swing arm 432 move toward the ascending inclined surface 3.
Climb up to the guide section 30 from 0a and ride on the guide section 30. The second swing arm 432
00, that is, in the direction of arrow B shown in FIG. Engaged portion 41 of first swing arm 431
5 and, in turn, the work holding portion 405 of the first swing arm 431.

As described above, the engaging portion 4 of the second swing arm 432
33 is a first swinging arm 431 and a work holding part 40
5 is pushed up, the work W transported as described above is scooped up by the work holding section 405 and lifted upward.

As a result, as shown in FIG. 2, the second swing arm 432 moves forward along the guide portion 30 while pushing up the first swing arm 431 in the direction of arrow B shown in FIG.

Further, the piston rod 411a of the cylinder device 411 moves forward in the direction of arrow A1, and the workpiece W reaches the stopper device 12. Then, as can be understood from FIG. 3, the roller 435 of the second swing arm 432 descends along the downward slope 30a, and the engagement between the roller 435 and the guide portion 30 is disengaged. Therefore, the roller 435 of the second swing arm 432 swings in the direction of arrow E (see FIG. 3), and thereafter the engaged portion 415 of the first swing arm 431 and the second swing arm 432 and the engaging portion 433 are not engaged with each other.
Therefore, the workpiece holder 405 of the first swing arm 431 descends around the first shaft 401, and the workpiece holder 405 is detached from the workpiece W. At this time, the lower surface of the workpiece W is placed on the guide rail 18.

The workpiece W detached from the workpiece holder 405 in this manner is guided along the guide rail 18, and the leading end of the workpiece W is chamfered by the grindstone device 13 and the brush device 14.

After removing the workpiece W, the workpiece transfer member 4 moves back in the direction of arrow A2 due to the retreat of the piston rod 411a of the cylinder device 411.
Therefore, the roller 435 of the second swing arm 432 climbs the downward slope 30b, and the second swing arm 432
While keeping the inclination of the guide part 30 as shown in Figure 3,
roll on top. In this way, the roller 435 is the arrow A2
During the backward movement in the direction, unlike the case of the forward movement described above, the first swing arm 4 is rotated as shown in FIG.
The engaged portion 415 of No. 31 and the engaging portion 433 of the second swing arm 432 are not engaged with each other, and therefore, unlike the case of forward movement, the second swing arm 432 is Do not raise 431. Therefore, in the case of retraction, unlike the conventional device described above, the workpiece W and the workpiece holding part 405 are not in contact with each other, and it is possible to prevent the workpiece W from being replaced. .

By the way, when transporting the workpiece W, the load P of the workpiece W acts on the workpiece holding part 405, as can be understood from FIG. In this embodiment, an engaged portion 415 is formed on the back side of the workpiece holding portion 405, and as shown in FIG.
5 is lifted by the engaging portion 433 of the second swing arm 432. Further, when the work W is being transported, the rollers 435 ride on the guide section 30. Therefore, in this embodiment, the load P of the workpiece W received by the workpiece holding part 405 is
and is substantially received by the guide portion 30 via the rollers 435. Therefore, the load P of the work W
Although it acts on the guide part 30 that functions as a fixed frame, it does not affect the first swing arm 431 or the first shaft 4.
01, and similarly, it does not have much effect on the second swing arm 432 or the second shaft 403.
Therefore, when transporting the workpiece W, the first
The load on the swing arm 431, the first shaft 401, the second swing arm 432, and the second shaft 403 can be effectively reduced. Therefore, the first swing arm 431, the first shaft 401, the second swing arm 432, and the second shaft 40
It is advantageous to avoid damage of 3.

[Effects of the invention] As explained above, according to the one-way work transfer device according to the invention, when moving forward, the engaged portion of the first swinging arm is connected to the engaging portion of the second swinging arm. The workpiece is lifted and conveyed by lifting, and on the other hand, when retracting, the engaged part of the first swinging arm and the engaging part of the second swinging arm are disengaged, and the first
The workpiece holding portion of the swing arm remains lowered, so that it is possible to prevent the workpiece transfer member from returning to its original position with the workpiece still on it.

According to the one-way workpiece conveyance device according to the present invention, the load of the workpiece acts on the workpiece holding part, and the engaged part on the back side of the workpiece holding part is lifted by the engaging part of the second swing arm. It is. Further, when the workpiece is being transported, the rolling element rides on the guide section. Therefore, the load of the workpiece received by the workpiece holding part is substantially received by the guide part via the engaged part, the engaging part, and the roller. Therefore, although the load of the workpiece acts on the guide part, it does not act much on the first swing arm or the first shaft, and similarly, the load on the second
It does not have much effect on the swing arm or the second axis. Therefore, when transporting a workpiece, the load on the first swing arm, first shaft, second swing arm, and second shaft can be effectively reduced. Therefore, the one-way work transfer device according to the present invention is advantageous in avoiding damage to the first swing arm, the first shaft, the second swing arm, and the second shaft.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, with Fig. 1 being a side view of the main parts, Figs. 2 and 3 being side views of the main parts showing the operating state, and Fig. 4 showing the main parts viewed from different directions. 5 is a plan view of the entire one-way conveyance device, FIG. 6 is a plan view of the vicinity of the grindstone device, and FIG. 7 is a side view thereof. In the figure, 1 is a base, 3 is a fixing member, 30 is a guide part, 4 is a workpiece conveying member, 400 is a stand part, 415
433 is an engaged portion, 431 is a first swing arm, 432 is a second swing arm, and 435 is a roller.

Claims (1)

[Claims for Utility Model Registration] A base, a fixing member fixed to the base and having a guide portion extending in a substantially horizontal direction with an ascending slope at one end and a descending slope at the other end, and the base. and a workpiece conveyance member interposed between the fixed member and the workpiece conveyance member that can freely reciprocate along the guide part, and the workpiece conveyance member is disposed so as to be freely forward and backward along the guide part and horizontally moveable. A stand having a shaft-shaped first shaft and a second shaft provided on the forward side of the first shaft, a work holding part formed at the tip and on which the work is placed, and a work holding part formed on the back side of the work holding part. a first shaft having a proximal end pivoted to the first shaft of the base so as to be swingable in the forward and backward direction of the base, and a distal end facing in the forward direction of the base. 1 a swinging arm, a distal end having a rolling element that rolls along the guide part and an engaging part that engages with the engaged part, and a base end that engages with the second axis of the base part. It is pivotally supported to be able to freely swing in the forward and backward direction of the base, and has an arm length that reaches the engaged portion of the first swing arm at its tip end, and as the base moves forward, the roller moves. The roller moves from the ascending slope to the guide section, and as it ascends, the rolling element swings in a direction opposite to the direction in which the platform moves forward, and the engaging section engages the first swing arm. The engaged portion is pushed up to push up the work holding portion of the first swing arm, and when retracting, the rotor ascends from the descending slope to the guide portion, travels on the guide portion, and ascends. Accordingly, the rolling element swings in a direction opposite to the retreating direction of the table part, disengages the engaged part and the engaged part, and lifts the work holding part of the first swing arm. A one-way workpiece conveyance device comprising: a second swinging arm;