JPS6240744Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece loading/unloading device in a vertical processing machine used for, for example, gear cutting of a countershaft in an automobile transmission.

Conventionally, the vertical gear cutting machine used for gear cutting of countershafts has a structure in which the operator directly attaches or removes the workpiece to a processing station, and the processing station is located at the back from the front of the machine. Since the machining station is located at a high location, it is extremely troublesome to supply workpieces to the machining station.

The present invention addresses the above-mentioned problems with conventional vertical processing machines, and includes a transport means for transporting workpieces between the front of the machine and a processing station located at a position deep from the front. ,
The workpiece conveyed to the processing station is automatically set at the processing position by the operation of the clamp member. As a result, the workpieces can be sequentially supplied to the processing station simply by attaching and removing the workpieces to the conveying means at the front of the machine, thereby improving the workability of the workpiece supplying operation.

That is, the present invention provides a vertical processing machine that presses and fixes a workpiece using a clamp member that can be raised and lowered to perform a predetermined processing. A conveyance means having a workpiece receptacle that is movably provided and movable up and down, and which guides the workpiece receptacle when the conveyance means is moved and is disengaged from the workpiece receptacle when the conveyance means is located at a processing station. and an elevating rail that holds a workpiece receiver disengaged from the guide rail at the processing station and moves up and down integrally with the clamp member to move the workpiece receiver up and down. shall be.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

As shown in FIGS. 1 and 2, the processing machine 1 has a processing station B located at the back from the front surface A, and the station B has a workpiece receiving jig 2 and a workpiece receiving jig 2 installed above it so as to be movable up and down. Clamp member 3
and a processing device (not shown) such as a gear cutting device. A slide rail 4 is installed between the front surface A of the processing machine 1 and the processing station B, and a conveying device 5 is engaged with the rail 4.

This conveying device 5 includes a slide member 6 fitted to the rail 4, a pair of parallel guide shafts 7, 7 erected upward from the member 6, and a pair of parallel guide shafts 7, 7 mounted on the base plate 8a. The workpiece receiver 8 is fitted with bearing parts 8b, 8b, and is provided so as to be movable up and down with respect to the slide member 6. Then, the rod 9 of the cylinder 9 is attached to the slide member 6.
a is connected via the bracket 6a, the entire conveyance device 5 can be moved in the lateral direction from the workpiece take-out station C on the front side of the machine A to the processing station B via the nearby workpiece placement station D. It is said that Further, the substrate 8a of the workpiece receiver 8 is provided with a pair of rollers 8c, 8c.
is placed on a guide rail 10 fixed to the processing machine main body, and since the rail 10 is inclined upward toward the processing station B,
The workpiece receiver 8 is configured to rise when the transfer device 5 moves toward the processing station B side.
Further, the base plate 8a of the workpiece receiver 8 is provided with a U-shaped workpiece holding portion 8d that holds a shaft-like workpiece X such as a countershaft in an upright state.

However, the conveyance device 5 is not connected to the processing station B.
When the workpiece receiver 8 is moved up to the point where the rollers 8c, 8c of the workpiece receiver 8 touch the terminal end 1 of the guide rail 10,
0a and onto the elevating rail 11 continuous to the terminal end 10a. This elevating rail 11 is fixed to the clamp member 3, and moves up and down integrally with the clamp member 3 between a raised position continuous to the guide rail 10 shown in FIG. 1 and a lowered position shown in FIG. The workpiece receiver 8 held via rollers 8c, 8c is configured to move up and down along guide shafts 7, 7. In this case, the workpiece receiver 8 is received by a stopper 12 while descending together with the lifting rail 11, and is held at a predetermined height by the stopper 12.

Further, on the front surface A of the processing machine 1, a work receiving device 13 as shown in FIGS. 1, 2, and 4 is provided. This device 13 includes a lever 15 that is swingable about a fulcrum 14, a support 16 erected from the swinging end of the lever 15, and workpiece receiving sections provided at two locations above and below the support 16. 17,1
It consists of 7. And the above lever 1
Stopper pins 18 and 19 that regulate the swing range of 5
is provided with a spring 20 that biases the lever 15 in one direction, and normally the support 16 is held in a vertical position as shown by the solid line in FIG. 4, and when the workpiece X is received, Its weight causes it to tilt as shown by the chain line. Further, the workpiece receiving section 17 includes a second
As shown in the figure, when the workpiece X is transferred to the take-out station C by the transfer device 5, it is moved in the direction a against a spring (not shown) to allow the workpiece X to pass. A claw 17a is provided to prevent the movement of the workpiece X and leave it in the receiving section 17 when the workpiece X retreats toward the loading station D side.

Next, the operation of the above embodiment will be explained.

First, as shown by solid lines in FIGS. 1 and 2, while the conveyance device 5 is located at the loading station D slightly further back from the front surface A of the processing machine 1, the holding portion 8d of the workpiece receiver 8 in the conveyance device 5 is moved. Attach work X in an upright position. Then, by operating the cylinder 9 in the direction in which the rod 9a retreats from this state, the conveying device 5 is moved along the slide rail 4 toward the processing station B at the back. At this time, the rollers 8c in the conveying device 5,
The workpiece receiver 8 whose portion 8c is engaged with the guide rail 10 moves upward along the slope of the rail 10, and when it reaches the processing station B, the rollers 8c and 8c have been transferred onto the lifting rail 11. The workpiece receiver 8 is now held on the lifting rail 11. After that, when the clamp member 3 is lowered as shown by the solid line in FIG. is prevented from descending by the stopper 12 and held at a predetermined height, and at the same time, the lower end of the workpiece
It is accepted by a. Then, as the clamp member 3 further descends, the upper end of the workpiece X is supported by the center pin 3a of the member 3. Thereby, the work X is held in a centered state between the receiving jig 2 and the clamp member 3, and a predetermined machining is performed by a gear cutter or the like (not shown). In this case, the workpiece receiver 8 is arranged so that a gap b is created between the upper end surface 8d' of the holding part 8d in the workpiece receiver 8 and the lower surface X' of the major axis of the workpiece X that was received on the surface 8d'. is located, and when machining workpiece X while rotating, the above-mentioned both sides 8
d′ and X′ are set so that they do not slide.

However, when the clamp member 3 is raised after the machining of the workpiece X is completed, the lifting rail 11 is raised together with the member 3, and during the ascent, the workpiece receiver 8 held by the stopper 12 is moved to the roller 8c. , 8c, and
The processed workpiece X, which has been released from support by the clamp member 3, is held again by the holding portion 8d of the workpiece receiver 8. After the clamp member 3 or the lifting rail 11 has risen to its original position, the cylinder 9 is operated in the direction in which the rod 9a protrudes, thereby moving the conveying device 5 from the processing station B toward the front surface A of the machine. , the roller 8c of the workpiece receiver 8 on the lifting rail 11,
8c moves onto the guide rail 10, and the workpiece receiver 8 moves downward according to the inclination of the guide rail 10.

In this case, the conveyance device 5 is
The processed workpiece X held in the workpiece receiver 8 of the transport device 5 passes through the claw 17a of the receiving device 13 and is carried to the receiving section 17. Then, if the conveyance device 5 is retreated to the mounting station D in order to attach the next workpiece to the holding part 8d of the workpiece receiver 8, the receiving part 1
The processed work X is left behind at 7, and its weight causes the receiving device 13 to tilt downward as shown by the chain line in FIG. As a result, the receiving device 13
The processed workpiece held in the device 13 does not interfere with the work of mounting the next workpiece on the mounting station D, and the processed workpiece can be easily taken out.

In this way, the workpieces can be sequentially supplied to the processing station by simply attaching them to the transport device 5 and taking them out from the receiving device 13 at the front A of the machine. Consequently, in this type of vertical processing machine in which the processing station is provided at a position recessed from the front of the machine, the workpiece feeding operation is significantly facilitated.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention: FIG. 1 is a front view, FIG. 2 is a plan view, FIG. 3 is a side view of the processing station, and FIG. 4 is a side view of the receiving device. DESCRIPTION OF SYMBOLS 1...Processing machine, 3...Clamp member, 5...Transporting means (transporting device), 8...Work receiver, 10...
...Guide rail, 11... Lifting rail, B... Processing station, X... Workpiece.

Claims (1)

[Scope of utility model registration request] A workpiece loading/unloading device for a vertical processing machine that performs predetermined processing by pressing and fixing a workpiece using a clamp member that can be raised and lowered, and is capable of moving laterally between a processing station and a position away from the station. a conveyance means having a workpiece receptacle that is provided and movable up and down, and a guide rail that guides the workpiece receptacle when the conveyance means is moved and is disengaged from the workpiece receptacle when the conveyance means is located at a processing station. and an elevating rail that holds the workpiece receiver disengaged from the guide rail at the processing station and moves up and down the workpiece receiver by moving up and down integrally with the clamp member. Workpiece loading/unloading device for mold processing machines.