JPH0262006B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a device for carrying a workpiece into and out of a three-dimensional measuring machine.

[Technical background of the invention]

Conventionally, a measurement surface plate is fixedly installed on the base of a three-dimensional measuring machine, and a crane is used to directly transport objects to be measured onto and from this fixed measurement surface plate.

[Problems with background technology]

This method of direct loading/unloading using a crane has the following drawbacks.

(a) It is necessary to cover the 3D measuring machine along with the crane with a dustproof cover, which requires extensive dustproofing measures.
Also, it is not preferable to put the crane inside the dust cover.

(b) It is difficult to control the impact when the object to be measured lands on the surface plate using a crane.

(c) If the crane is operated incorrectly, there is a risk of collision with the column of the 3D measuring machine, which may cause the measuring machine to become distorted or damaged.

[Purpose of the invention]

The present invention has been made in view of the above points, and has the following objects.

(a) We want to separate the preset position of the object to be measured using a crane, etc. from the 3D measuring machine that should be dust-proof, and make it possible to take compact and sufficient dust-proof measures for this 3-dimensional measuring machine, and at a lower cost. .

(b) In order to avoid collisions with the 3D measuring machine due to incorrect crane operation and shocks when landing on the measuring surface, we would like to change the method of lifting the 3D measuring machine using a crane and use a lateral loading/unloading method.

(c) Since it is difficult to correct the posture of the object to be measured on the surface plate of a 3D measuring machine, we would like to improve work efficiency by using the preset method.

[Structure of the invention]

(Means for Solving the Problems) The object to be measured loading/unloading device of the present invention includes a measuring means 35 provided above the base 13 of the three-dimensional measuring machine 2 fixed parallel to the floor surface, and A guide rail 4 is laid on the floor parallel to one side of the stand 13, and the base 13 of the three-dimensional measuring machine 2 is placed on this guide rail 4.
A trolley 5 that moves forward and backward from the side along the floor surface is provided, and a cylinder 9 for moving a portable surface plate and a roller conveyor 10 on the trolley side are provided parallel to each other on the upper surface of the trolley 5. On the upper surface of the base 13 of the machine 2, a measuring machine-side roller conveyor 18 located on an extension of the above-mentioned trolley-side roller conveyor 10 is provided so as to be movable up and down via a vertical movement means 17. The surface level and the uppermost conveyance surface level of the measuring machine side roller conveyor 18 are set to be the same, and a portable surface plate 3 is provided so as to be freely transferable between the trolley side roller conveyor 10 and the measuring machine side roller conveyor 18, A movable table 2 that is moved parallel to the measuring machine side roller conveyor 18 on the base 13 of the three-dimensional measuring machine 2 is attached to the operating tip of the cylinder 9 for moving the portable surface plate.
7 are integrally attached, and an engaging claw 28 for taking out the portable surface plate located on the measuring machine side on the moving table 27 and an engaging claw for feeding the portable surface plate located on the opposite side of the moving table 27. Compatible claws 29 are provided facing the three-dimensional measuring machine 2 with a gap between the front and back and shifted in the left-right direction, and are provided at the end of the portable surface plate 3 on the measuring machine side and the opposite end, respectively. Forward/backward switching convex portions 32, 33 that selectively engage with either the engaging claw 28 for taking out the portable surface plate and the engaging claw 29 for feeding the portable surface plate.
between the front and back of both the above-mentioned engaging claws 28, 29.
It is provided so as to be movable in the left and right directions.

(Function) In the present invention, when carrying in the object 1 to be measured, the trolley 5 is made to stand by at a place away from the three-dimensional measuring machine 2,
The object 1 to be measured is placed on the portable surface plate 3 supported by the roller conveyor 10 on the cart side using a crane, forklift, etc., and then the cart 5 is placed on the base 13 of the coordinate measuring machine 2. On the other hand, the roller conveyor 10 on the trolley side approaches the roller conveyor 18 on the measuring machine side on the base 13 at the same level. Next, slide the forward/backward switching protrusion 32 on the measuring machine side end of the portable surface plate 3 in the horizontal direction to
Position it in front of the upper engagement claw 29 on the side opposite to the measuring machine,
The engaging claw 2 is moved by the cylinder 9 for moving the portable surface plate.
9 is pushed out, and the portable surface plate 3, which engages with this engaging claw 29 via the forward/backward switching convex portion 32, is moved toward the measuring machine. Since it is not possible to transfer the portable surface plate 3 to the measuring machine side roller conveyor 18 at once with this stroke of the cylinder 9, the above-mentioned moving table 27 is moved to the side of the portable surface plate 3 by the cylinder 9 for moving the portable surface plate. Return to the forward/reverse switching protrusion 33 on the machine side, and then press the forward/reverse switching protrusion 3
3 in the horizontal direction and position it in front of the engaging claw 29 on the side opposite to the measuring machine on the moving table 27, and push out the engaging claw 29 with the cylinder 9 for moving the portable surface plate to remove this engaging claw. The portable surface plate 3, which engages with the mating claw 29 via the forward/backward switching protrusion 33, is moved toward the measuring machine and transferred onto the measuring machine's roller conveyor 18. next,
This measuring machine side roller conveyor 18 is moved up and down by means 1.
7, the portable surface plate 3 is lowered slightly to land on the base 13, and three-dimensional measurement is performed. When carrying out the object 1 to be measured from the three-dimensional measuring machine 2, the roller conveyor 18 on the measuring machine side is slightly raised to levitate the portable surface plate 3 from the base surface. Moving table 2 moved forward and backward by cylinder 9
The engaging claw 28 on the measuring machine side on the top 7 is engaged with the forward/backward switching protrusions 32, 33, and the portable surface plate 3 is transferred to the trolley-side roller conveyor 10.
is retreated from the three-dimensional measuring machine 2, and finally the object to be measured 1 is taken out from the portable surface plate 3 above it.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail with reference to embodiments shown in the drawings.

The object to be measured 1 is placed on a portable surface plate 3 for a three-dimensional measuring machine 2 for three-dimensionally measuring the dimensions of the object to be measured 1.
This constitutes the equipment that is carried in together with the equipment and carried out after measurement.

That is, as shown in FIGS. 1 and 2,
Two guide rails 4 are laid on the floor surface, and a cart 5 is provided on the rails 4. This trolley 5 is manually run on the rail 4 via metal wheels 6, stopped by a stopper 7, and moved on the rail 4 by a brake 8.
Fixed at any position on the top. Further, on the upper surface of this truck 5, an air cylinder 9 as a cylinder for moving the portable surface plate in the center, free roller conveyors 10 on both sides of the air cylinder 9, and a switching valve 11 for operating the air cylinder 9 to expand and contract are installed. On the other hand, on the 3D measuring machine side, the mounting plate 12 on which various devices are attached is placed on the base 13, which was a conventional measurement surface plate, with anchor bolts 1
4 and a holding plate 15, and a free roller conveyor 18 is vertically supported on this mounting plate 12 by a fixed roller conveyor 16 and six hydraulic cylinders 17 as vertical movement means. Switching valve 1 for operating this hydraulic cylinder 17
9 is provided at the entrance/exit portion of the dustproof wall 20.

Further, as shown in FIG. 3, guide rails 21 and 22 are provided on both sides of the cart 5 and on both sides of the mounting plate 12 of the measuring machine, respectively, and these guide rails 21 and 22 are connected to a portable surface plate. The guide rollers 23 pivotally supported on the lower surfaces of both sides of the table 3 are guided to prevent lateral vibration during movement of the portable surface plate 3, and the guide rails 22 on the mounting plate 12 are Similar to the fixed pad 24, it also serves as a pad when the portable surface plate is set.

Further, as shown in FIGS. 4 to 6, a moving table 27 having rollers 26 is provided at the tip of the piston rod 25 operated by the air cylinder 9, and one engagement plate is mounted on the moving table 27. The pawl 28 and the other engaging pawl 29 are provided front and rear as shown in FIG. 4 and on the left and right as shown in FIG. The above moving platform 2
7 is guided by a guide rail 30 on the mounting plate 12 on the measuring machine side. Further, as shown in FIG. 6, forward and backward switching protrusions 32 and 33 are provided at the front and rear parts of the portable surface plate 3 and can be manually slid along the slide frame 31 in the left and right direction. Let it slide.

FIG. 7 shows the three-dimensional measuring machine 2, in which a measuring element 35 as a measuring means shown in FIG.
6. Y direction guide 37 and Z direction (vertical direction)
It is configured to be able to move in three dimensions using a guide 38.

FIG. 8 shows the fluid circuit of the air cylinder 9 and the hydraulic cylinder 17, which connects the air pressure source 39 through a flow rate adjustment valve 40, a filter 41, an air regulator (pressure reducing valve) 42, and an oiler (one that sprays oil into the air). ) 43 is connected,
The switching valve 11 is connected to one pipe line 44 branched from this, and the other pipe line 45
The switching valve 19 is connected to the switching valve 19, and one switching valve 11 is connected to the speed controller 4 which is a throttle valve.
The other switching valve 19 is connected to the air cylinder 9 through the air cylinder 6 and exhausts air to the outside through the silencer 47. The air pressure is then converted into high-pressure hydraulic pressure, and this hydraulic pressure is supplied to the six hydraulic cylinders 17. 49
is the oil room. Each hydraulic cylinder 17 is of the spring return type. Note that the above switching valves 11, 19
is a 3-position 4-way manual valve.

Next, to explain the operation, the trolley 5 is moved by hand to the measuring machine side stopper 7, this trolley 5 is fixed on the rail 4 with the brake 8, and then the forward/reverse switching protrusions 32, 33 are set to forward. When the handle 52 of the switching valve 11 is operated to the forward side, the air cylinder 9 provided in the center of the truck 5 sends the portable surface plate 3 on the roller conveyor 10 on the truck side onto the roller conveyor 18 on the measuring machine side. This is locked by a stopper 53. Next, as shown in FIG. 3, by lowering the roller conveyor 18 using the hydraulic cylinder 17, the portable surface plate 3 is placed on the guide rail 22 and pad 24, and measurement is started. Next, when the measurement by the measuring device 2 is completed, the measuring device side roller conveyor 18 is raised to the level of the trolley side roller conveyor 10 by the hydraulic cylinder 17, the forward/reverse switching protrusions 32, 33 are set to backward, and the switching valve 1
When the handle 52 of 1 is operated in the backward direction, the air cylinder 9 moves the portable surface plate 3 toward the cart. The portable surface plate 3 can be stopped at any position even when it is moving by setting the switching valve 11 to neutral, and by disengaging the forward/reverse switching protrusions 32, 33 from the engaging claws 28, 29. It is also possible to manually operate the portable surface plate 3 in a direction out of alignment.

To explain in more detail the function of the forward/backward switching convex portions 32, 33, as shown in FIG. 9, when feeding the surface plate, (a) the convex portion 32 is switched to the position shown in this figure, and (b) The protrusion 32 is pushed by the claw 29 and the surface plate 3 is
Move by the stroke of air cylinder 9, (c)
Retract the claws 28 and 29, (d) switch the protrusion 33 to the position shown in the figure, and (e) push the protrusion 33 with the claw 29 to move it to the stopper 53 position of the measuring machine on the surface plate 3 to perform three-dimensional measurement. conduct. Next, when removing the surface plate, (f) switch the protrusion 33 to the position shown in the figure, (g) pull the protrusion 33 with the claw 28 to return the portable surface plate 3 halfway, and (h) move the claw 28, 2
9 to the convex portion 32 side, (i) switch the convex portion 32 to the position shown in the figure, and (j) pull the convex portion 32 with the claw 28 to take out the portable surface plate 3 onto the trolley 5.

Note that carts may be installed in both directions of the base 13 of the measuring machine 2, and in this way, presetting can be performed on one side while measuring on the other side, improving the operating rate.

As in the above embodiment, since the air cylinder 9 is used as the cylinder for moving the portable surface plate, the speed of this cylinder 9 can be easily controlled. can be carried out quietly and without impact, making it effective as a cylinder for moving the portable surface plate 3 that supports the relatively lightweight object 1 to be measured, and is easy to operate since air is used as the power source. The device structure is relatively simple and can be manufactured at low cost. Furthermore, as in the above embodiment, pneumatic pressure is used as the power source for vertically driving the roller conveyor 18 on the measuring machine side, and the pneumatic-hydraulic booster 48
Since the hydraulic cylinder 17 as the vertical movement means is actuated via the cylinder 9, a large operating force can be conveniently obtained from air pressure, which is the same operating fluid as the cylinder 9 for moving the portable surface plate.

〔Effect of the invention〕

According to the present invention, a trolley is provided that can move forward and backward along a guide rail with respect to the base of a three-dimensional measuring machine, and a cylinder for moving a portable surface plate and a roller conveyor on the trolley side are provided on the upper surface of the trolley, and the above-mentioned A measuring machine side roller conveyor is provided on the top surface of the base of the three-dimensional measuring machine so as to be movable up and down via a vertical movement means, and a portable surface plate can be freely moved between the trolley side roller conveyor and the measuring machine side roller conveyor. Because of this structure, the work position where the object to be measured is preset on the transportable surface plate using a crane etc. can be completely separated from the 3D measuring machine. The equipment for use is limited to the area around the measuring machine and the ceiling, making it small-scale, and it is possible to take sufficient dust-proof measures in a compact manner only for the 3D measuring machine. Yotsute 3
There is no concern that the object to be measured will collide with the dimension measuring machine, and 3
The posture of the object to be measured can be easily corrected on a portable surface plate on a trolley without worrying about a dimensional measuring machine, and presetting work can be easily performed. In addition, by simply transferring the portable surface plate on which the object to be measured is set from the roller conveyor on the trolley side to the roller conveyor on the measuring machine side and landing this portable surface plate on the base using the vertical movement means, the Since the surface plate functions as a measurement surface plate, high-precision 3D measurement can be performed immediately on objects to be measured that are fed into the 3D measuring machine from the side along with the portable surface plate by simply lowering the portable surface plate slightly. can be started. Moreover, when landing the portable surface plate on the base of the measuring machine, unlike a crane, the vertical movement means on the base side, which can easily adjust the speed, allows for quiet landing. There is no longer any negative impact on the measuring device caused by impact force. Furthermore, by operating the forward/reverse switching protrusions provided on the measuring machine side end and the opposite end of the portable surface plate, the forward/reverse switching protrusions on both sides and the By selecting the engagement with the engaging claw for taking out the portable surface plate and the engaging claw for feeding the portable surface plate, which are attached to the operating tip of the moving cylinder via the moving table, the moving cylinder can be fixed. Even if the stroke of the cylinder for moving the platen is limited by the size of the trolley, the moving stroke of the portable surface plate can be made larger than that, and the above-mentioned movement stroke can be increased by operating the forward/backward switching protrusion. The portable surface plate can also be manually moved in the direction in which it is disengaged from the engagement pawl, and operability is good in this respect as well.

[Brief explanation of the drawing]

The figure shows one embodiment of the device of the present invention.
The figure is a side view of the whole, the second figure is a plan view of the whole, and the third figure is a side view of the whole.
The figure is a front view showing the portable surface plate on the trolley and the base of the measuring machine, Figure 4 is a side view of the operating tip of the air cylinder, Figure 5 is its front view, and Figure 6 is its plan view. , Fig. 7 is a plan view of the three-dimensional measuring machine, Fig. 8 is a fluid circuit diagram of the air cylinder and hydraulic cylinder, and Fig. 9 is a plan view showing the action of the forward/reverse switching protrusions at the front and rear of the portable surface plate. It is a diagram. 1...Object to be measured, 2...3D measuring machine, 3...
Portable surface plate, 4... Guide rail, 5... Dolly, 9...
...Air cylinder as a cylinder for moving the portable surface plate, 10... Roller conveyor on the trolley side, 13... Base, 17... Hydraulic cylinder as vertical movement means,
18... Measuring machine side roller conveyor, 27... Moving table, 28, 29... Engaging claw, 32, 33... Forward/backward switching protrusion, 35... Measuring head as measuring means.

Claims (1)

[Claims] 1. A measuring means is provided above the base of a three-dimensional measuring machine fixed parallel to the floor, and a guide rail is laid parallel to the floor on one side of the base. On this guide rail, a trolley is installed that moves sideways along the floor with respect to the base of the three-dimensional measuring machine, and a cylinder for moving the portable surface plate and a roller conveyor on the trolley side are installed on the upper surface of the trolley. are provided parallel to each other, and a measuring machine-side roller conveyor located on an extension of the trolley-side roller conveyor is provided on the top surface of the base of the three-dimensional measuring machine so as to be movable up and down via a vertical movement means. The transport surface level of the trolley-side roller conveyor and the highest transport surface level of the measuring machine-side roller conveyor are set to be the same, and the transportable surface plate can be freely transferred between the above-mentioned trolley-side roller conveyor and the measuring machine-side roller conveyor. provided at the operating tip of the cylinder for moving the portable surface plate,
A movable base that is moved parallel to the measuring machine side roller conveyor is integrally mounted on the base of the three-dimensional measuring machine, and an engaging claw for taking out the portable surface plate located on the measuring machine side on this movable base; An engaging claw for feeding the portable surface plate located on the opposite side of the moving table is provided so as to face the three-dimensional measuring machine, with a gap between the front and back and shifted in the left-right direction. The end on the measuring machine side and the end on the opposite side are provided with front and rear parts that selectively engage with either the engaging claw for taking out the portable surface plate and the engaging claw for feeding the portable surface plate, respectively. A device for loading and unloading an object to be measured for a three-dimensional measuring machine, characterized in that a forward switching convex portion is provided so as to be movable in the horizontal direction within the space between the front and back of both of the engagement claws. 2. A device for loading and unloading a measured object into a three-dimensional measuring machine according to claim 1, wherein the cylinder for moving the portable surface plate is an air cylinder. 3. The measuring machine side roller conveyor uses air pressure as a power source for vertical driving, and is moved up and down by a hydraulic cylinder as a vertical movement means via a pneumatic-hydraulic booster. A device for carrying in and out a measured object for the three-dimensional measuring machine according to any one of Items 2 to 3.