JP4162062B2 - Shuttle table equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shuttle table device, and more particularly to a shuttle table device that shortens a table exchange time and simplifies an exchange mechanism.
[0002]
[Prior art]
Conventionally, a shuttle table device has been used in a plate material processing machine such as a laser processing machine or a punch press (FIGS. 5 and 7), and the workpiece W1 on the first shuttle table 1 in the processing region K is processed. The workpiece W2 is set up on the second shuttle table 2 in the standby area T.
[0003]
Then, when the processing of the workpiece W1 on the first shuttle table 1 is finished, the first shuttle table 1 and the second shuttle table 2 are exchanged, the second shuttle table 102 is moved to the processing region K, and processing is performed. The first shuttle table 1 is moved to the standby area T for setup.
[0004]
In this way, while the workpiece is being processed, the next workpiece is set up, thereby eliminating the free time and improving the production efficiency.
[0005]
For example, in the method of FIG. 5, the first shuttle table 1 travels on the rail 3, and the second shuttle table 102 is a cart with a link mechanism 4 (FIG. 5A) or a cart with a cylinder 5 (FIG. 5). 5 (B)) to move between the standby area T and the machining area K, respectively.
[0006]
However, in the method of FIG. 5, a four-step operation is required to exchange the first shuttle table 1 and the second shuttle table 2.
[0007]
That is, the pass line PL is matched in the processing area K and the standby area T (FIG. 6A), the second shuttle table 2 is lowered (FIG. 6B), and both are moved in opposite directions. (FIG. 6C), the second shuttle table 2 is raised (FIG. 6D).
[0008]
However, in the method of FIG. 5, since the second shuttle table 2 moves along the U-shaped path (FIG. 9A), the replacement time of the first shuttle table 1 and the second shuttle table 2 becomes long. Moreover, the link mechanism 4, the cylinder 5, and the carriage (FIGS. 5A and 5B) are required, and the replacement mechanism becomes complicated.
[0009]
The system shown in FIG. 7 has been proposed to solve this problem (disclosed in Japanese Patent Application No. 9-239534).
[0010]
In this method, horseshoe-shaped horizontal guides 6 and 7 are provided on both sides, and fixed guides 10 and 11 and rotation guides 8, 9, 12, and 13 are provided on the center, thereby allowing the first shuttle table 1 and the second shuttle table 2 to be connected. Both are circulated (FIG. 9B), and both are exchanged.
[0011]
That is, after the rotation guides 8 and 12 are connected in advance to the horizontal guide 6 side and the rotation guides 9 and 13 are connected to the horizontal guide 7 side (FIG. 8A), the first shuttle table 1 in the processing area K is provided. And the second shuttle table 2 in the waiting area T are moved in opposite directions, and when both pass the center, the rotation guides 8 and 12 are on the fixed guide 10 side and the rotation guides 9 and 13 are on the fixed guide 11 side. (FIG. 8B).
[0012]
Then, the first shuttle table 1 and the second shuttle table 2 each draw a circular arc, the former descends, the latter rises (FIG. 8C), and the first shuttle table 1 enters the standby area T, the second shuttle table 1 The shuttle table 2 reaches the processing area K (FIG. 8D).
[0013]
[Problems to be solved by the invention]
However, the prior art of FIG. 7 has the following problems.
[0014]
In the prior art of FIG. 7, both the first shuttle table 1 and the second shuttle table 2 perform a circular motion along an ellipse (FIG. 9B), and therefore, in FIG. 5A and FIG. Compared to the prior art, the replacement time was shortened.
[0015]
However, due to the structure of the guides 6, 7, etc., the first shuttle table 1 and the second shuttle table 2 move up and down while drawing arcs on both sides (FIG. 8 ( C )).
[0016]
Therefore, compared with the case where the 1st shuttle table 1 and the 2nd shuttle table 2 move linearly between the process area K and the waiting area T, both exchange time is long.
[0017]
In the prior art of FIG. 7, in order to exchange the first shuttle table 1 and the second shuttle table 2, the rotation guides 8 and 12 are placed on the horizontal guide 6 side and the fixed guide 10 side, and the rotation guides 9 and 13 are placed horizontally. It is necessary to switch between the guide 7 side and the fixed guide 11 side (FIGS. 8A and 8B).
[0018]
This complicates the exchange mechanism and increases the cost accordingly.
[0019]
An object of the present invention is to shorten a table exchange time and simplify an exchange mechanism in a shuttle table device.
[0020]
[Means for Solving the Problems]
In order to solve the above problems, the present invention, as shown in FIGS.
(A) a first travel rail 103 that travels the first shuttle table 101 and is fixed straight ;
(B) a second traveling table 104 that travels on the second shuttle table 102 and is divided into a front rail 104 A and a rear rail 104 B and is bendable ;
(C) having a vertical movement link device 105 coupled to the center of the second traveling rail 104;
(D) By raising the vertical movement link device 105 to the uppermost position, the second traveling rail 104 is moved to the front rail 104 A and the rear rail so that the pass lines PL in the machining area K and the standby area T coincide with each other. In a state where 104 B is bent in a bow shape , the second traveling rail 104 is moved to its front rail 104 A by positioning with respect to the first traveling rail 103 and lowering the vertical movement link device 105 to the lowest position. The rear rail 104 B is a single connected rail and is bent in a trapezoidal shape as a whole, and is positioned below the first traveling rail 103 so that the second shuttle table 102 and the first shuttle table 101 are opposite to each other. A technical means called a shuttle table device is provided, which is characterized in that it can be exchanged by moving in the direction.
[0021]
According to the configuration of the present invention, the second shuttle table 102 and the first shuttle are operated by operating the vertical movement link device 105 and positioning the second traveling rail 104 in the vertical direction with respect to the first traveling rail 103. The table 101 can be exchanged.
[0022]
Therefore, the second shuttle table 102 can be moved under the first shuttle table 101 (FIG. 2B), and both move linearly while maintaining the shortest distance ( 9 (C)) The replacement time is remarkably shortened and the second traveling rail 104 can be moved up and down simply by providing the vertical movement link device 105 (FIGS. 1 and 2), so the replacement mechanism is extremely simple. It becomes.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the accompanying drawings by embodiments. FIG. 1 is a block diagram of the present invention, in which reference numeral 100 is a shuttle table device, 101 is a first shuttle table, 102 is a second shuttle table, 103 is a first traveling rail, and 104 is a second traveling rail. , 105 is a vertically moving link device, K is a machining area, and T is a standby area.
[0024]
In the following description, the standby region T side is defined as the front or front portion, and the processing region K side is defined as the rear or rear portion.
[0025]
The first shuttle table 101 travels on the first traveling rail 103 with the workpiece W1 placed thereon, and the first traveling rail 103 is fixed to the beam column frame 113.
[0026]
The second shuttle table 102 travels on the second traveling rail 104 with the workpiece W2 placed thereon. The second traveling rail 104 is slightly narrower than the first traveling rail 103, and both ends thereof are beam pillar frames. In addition to being fixed to 114, the central portion is coupled to the vertical movement link device 105.
[0027]
Second running rail 104 is divided into the front rail 104A and the rear rail 104B, said front rail 104A and the rear rail 104B is further divided into front rail 104A1,104B1 and rear rail 104A2,10 4 B2 (FIG. 2).
[0028]
The front rail 104A1 and rear rail 104A2 of the front rail 104A through the pin P4, the front rail 104B1 and rear rails 10 4 B2 of the rear rail 104B are respectively coupled via the pin P5.
[0029]
As a result, the front rail 104A and the rear rail 104B constitute a two-bar linkage mechanism, respectively, and bend in a specific shape when moving up and down by a vertical movement link device 105 described later (FIGS. 2A and 2B). )), The second shuttle table 102 and the first shuttle table 101 can be exchanged smoothly.
[0030]
The vertical movement link device 105 includes a cylinder 105A, a piston rod 105B that moves up and down by the cylinder 105A, and connecting rods 105C and 105D coupled to the piston rod 105B via a pin P1.
[0031]
The cylinder 105A is a pneumatic or hydraulic cylinder and has a function of moving the second traveling rail 104 up and down.
[0032]
The piston rod 105B is moved up and down by the cylinder 105A to open and close the two connecting rods 105C and 105D coupled via the pin P1 (FIGS. 2A and 2B). )).
[0033]
The connecting rod 105C, connecting rods 105C of 105D via a pin P2, to the end after the forward rail 104A, also connecting rod 105D via the pin P3, respectively before the end of the rear rail 104B Are combined.
[0034]
That is, if the cylinder 105A, the piston rod 105B, and the connecting rods 105C and 105D are links constituting the vertical link device 105, the cylinder 105A and the piston rod 105B form a sliding pair, and the piston rod 105B is a link block ( Slippery).
[0035]
The piston rod 105B is a main node that moves up and down by obtaining energy from the cylinder 105A for the first time. The piston rod 105B that is the main node and the connecting rods 105C and 105D that are the subordinates make a turning pair.
[0036]
With this configuration, by raising the vertical movement link device 105 to the uppermost position (FIG. 2A), the second traveling rail 104 is moved to the first traveling rail 104 so that the pass lines PL in the machining area K and the standby area T coincide with each other. Positioning with respect to the traveling rail 103 is possible.
[0037]
That is, when the vertical movement link device 105 is raised to the uppermost position (FIG. 2A), the connecting rods 105C and 105D are opened to the left and right by the raised piston rod 105B.
[0038]
Therefore, the end portion after the front rails 104A that is coupled to the connecting rod 105C and 105D, even before the end of the rear rail 104B, away from each other (FIG. 2 (A)).
[0039]
At this time, with respect to the straight first traveling rail 103, the second traveling rail 104 is configured such that the front rail 104A and the rear rail 104B constituting the two-bar linkage mechanism are illustrated (FIG. 2 (A)). Each is bent into a bow shape via P4 and P5.
[0040]
Therefore, if the second traveling rail 104 bent in such a bow shape is appropriately positioned with respect to the straight first traveling rail 103 by raising the vertical movement link device 105 to the uppermost position, the processing region K And the pass line PL in the standby area T can be matched.
[0041]
Further, by lowering the vertical movement link device 105 to the lowest position (FIG. 2B), the second traveling rail 104 is positioned below the first traveling rail 103, and the second shuttle table 102 and the first shuttle are positioned. The tables 101 can be moved in opposite directions.
[0042]
That is, when the vertical movement link device 105 is lowered to the lowest position (FIG. 2B), the connecting rods 105C and 105D are closed by the lowered piston rod 105B.
[0043]
Therefore, the end portion after the front rails 104A that is coupled to the connecting rod 105C and 105D, front end of the rear rail 104B are joined (FIG. 2 (B))).
[0044]
At this time, as compared to the straight first traveling rail 103, the second traveling rail 104 includes a front rail 104A and a rear rail 104B that constitute a two-bar linkage mechanism (FIG. 2B). It becomes the rail which connected the book, is positioned below, and is bent into a trapezoid shape as a whole via pins P4 and P5.
[0045]
Accordingly, if the second shuttle table 102 is caused to travel on the second traveling rail 104 bent in a trapezoidal shape, the second shuttle table 102 is pushed under the first shuttle table 101 so that the two are opposite to each other. Can be moved in the direction.
[0046]
In this manner, the second shuttle table 102 and the first shuttle table 101 are moved up and down by moving the vertical link device 105 between the uppermost position and the lowermost position (FIGS. 2A and 2B). Then, it moves linearly while keeping the shortest distance (FIG. 9C), and both can be exchanged in the machining area K and the standby area T.
[0047]
Between the beam column frame 113 that fixes the first traveling rail 103 and the beam column frame 114 that fixes the second traveling rail 104 (FIG. 1), a chain 107 is disposed.
[0048]
The chain 107 extends in the X-axis direction (FIG. 1), is wound around a drive sprocket 108 and a driven sprocket 109, and a motor M as a drive source is coupled to the drive sprocket 108, and a rear driven sprocket 109 is They are connected to each other via a shaft 110.
[0049]
The drive sprocket 108 is rotatably supported by the bracket 115 and the driven sprocket 109 is rotatably supported by the bracket 116.
[0050]
A bar 112 coupled to the first shuttle table 101 is fixed to the upper part 107A of the two chains 107, and a bar 111 coupled to the second shuttle table 102 is fixed to the lower part 107B. .
[0051]
With this configuration, if the motor M is driven to circulate the chain 107 (FIG. 1), the first shuttle table 101 and the second shuttle table 102 can be simultaneously moved in opposite directions (FIG. 3B). (C), (D)).
[0052]
In this case, the bar 111 that connects the second shuttle table 102 and the chain 107 is a telescopic bar in which the first bar 111A is inserted into the second bar 111B.
[0053]
With this configuration, when the second shuttle table 102 travels on the second travel rail 104 (FIG. 2B), when traveling downward (FIG. 3B), the bar 111 is shrunk and horizontally When traveling (FIG. 3C), the bar 111 maintains its contracted state, and when traveling upward (FIG. 3D), the bar 111 extends.
[0054]
Thus, the bar 111 is expanded and contracted due to the vertical inclination when the second shuttle table 102 travels (FIGS. 3B to 3D), and the power between the chain 107 and the second shuttle table 102 is increased. It is transmitted without waste, and the moving operation of the second shuttle table 102 is performed smoothly.
[0055]
FIG. 4 is a diagram showing an application example of the present invention, and shows a case where the shuttle table device 100 according to the present invention is applied to a laser processing machine 200, for example.
[0056]
The first shuttle table 101 and the second shuttle table 102 alternately enter the processing area K of the laser processing machine 200, so that the processing head 202 described later irradiates the workpiece W1 or W2 with laser, and a predetermined laser Processing is applied.
[0057]
The machining head 202 is attached to the Y-axis slider 204 and can be moved up and down by a Z-axis motor Mz (not shown) built therein.
[0058]
The Y-axis slider 204 is screwed with a ball screw 205 driven by a Y-axis motor My, and is slidably coupled with the X-axis slider 203.
[0059]
The X-axis slider 203 extends in the Y-axis direction across the base frame 201 of the laser beam machine 200 and is screwed into a ball screw 206 that is driven by the X-axis motor Mx.
[0060]
With this configuration, the machining head 202 can move in three dimensions of XYZ, and the workpiece W1 on the first shuttle table 101 that has entered the machining area K or the workpiece W2 on the second shuttle table 102 as described above. The laser processing is applied to.
[0061]
The operation of the present invention will be described below with reference to FIG.
First, the second traveling rail is operated so that the pass line PL in the processing region K and the standby region T coincides by operating the cylinder 105A (FIG. 3A) and raising the vertical movement link device 105 to the uppermost position. 104 is positioned with respect to the first traveling rail 103.
[0062]
Next, the cylinder 105 </ b> A is operated again (FIG. 3B), and the second travel rail 104 is positioned below the first travel rail 103 by lowering the vertical movement link device 105 to the lowest position.
[0063]
When the motor M is driven in this state (FIG. 3B), the chain 107 circulates, and the second shuttle table 102 and the first shuttle table 101 move in directions opposite to each other.
[0064]
In other words, the second shuttle table 102 coupled to the chain 107 via the bar 111 travels on the trapezoidal second traveling rail 104 toward the machining area K and is coupled to the chain 107 via the bar 112. The first shuttle table 101 thus made travels on the straight first traveling rail 103 toward the standby area T.
[0065]
And the 2nd shuttle table 102 and the 1st shuttle table 101 currently couple | bonded with the same chain 107 move to an opposite direction simultaneously, and pass simultaneously the center part of the 2nd traveling rail 104 and the 1st traveling rail 103 (FIG. 3 (C)).
[0066]
After passing the central portion, the second shuttle table 102 starts to rise toward the processing region K on the trapezoidal second traveling rail 104 (FIG. 3D), and the first shuttle table 101 is a straight second The vehicle travels on the traveling rail 103 toward the standby area T.
[0067]
At this time, when the second shuttle table 102 reaches the machining area K and the first shuttle table 101 reaches the standby area T, the vertical movement link device 105 rises to the uppermost position (see FIG. 3). (E)).
[0068]
In this case, the circulation of the chain 107 has already stopped (FIG. 3E), and the second traveling rail 104 is in relation to the first traveling rail 103 so that the pass lines PL in the processing region K and the standby region T coincide. It is positioned.
[0069]
Accordingly, the front rail 104A and the rear rail 104B of the second traveling rail 104 are both bent in a bow shape, and the vertical positional relationship between the second traveling rail 104 and the first traveling rail 103 is the same as that in the initial state. (FIG. 3A) is exactly the same except that the second shuttle table 102 is located in the machining area K and the first shuttle table 101 is located in the standby area T.
[0070]
Thus, according to the present invention, by providing the vertical movement link device 105,
By positioning the second traveling rail 104 in the vertical direction with respect to the first traveling rail 103 (FIG. 3), the second shuttle table 102 and the first shuttle table 101 can be exchanged.
[0071]
At that time, the second shuttle table 102 can be moved under the first shuttle table 101 (FIGS. 3B to 3D), and both of them can be linearly maintained while keeping the shortest distance. Since it moved (FIG. 9C), the exchange time was significantly shortened.
[0072]
In addition, a vertically moving link device 105 is provided and the second traveling rail 104 is moved up and down, whereby the second shuttle table 102 traveling on the second traveling rail 104 and the first traveling rail 103 are traveled. Since the shuttle table 101 can be exchanged, the exchange mechanism has been greatly simplified.
[0073]
【The invention's effect】
As described above, according to the present invention, the shuttle table device is coupled to the first traveling rail for traveling the first shuttle table, the second traveling rail for traveling the second shuttle table, and the second traveling rail. By configuring with the vertical movement link device, the second shuttle table can be moved under the first shuttle table, and both move linearly while maintaining the shortest distance, so the exchange time is Since the second traveling rail can be moved up and down simply by providing a vertically moving link device, the exchange mechanism is extremely simplified.
[0074]
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of the present invention.
FIG. 2 is a diagram showing a relationship between a first traveling rail 103 and a second traveling rail 104 constituting the present invention.
FIG. 3 is an operation explanatory diagram of the present invention.
FIG. 4 is a diagram illustrating an application example of the present invention.
FIG. 5 is a configuration diagram of the first prior art.
FIG. 6 is an operation explanatory diagram of the first prior art.
FIG. 7 is a configuration diagram of the second prior art.
FIG. 8 is a diagram for explaining the operation of the second prior art.
FIG. 9 is a diagram showing an exchange path between the first shuttle table and the second shuttle table.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Shuttle table apparatus 200 Laser beam machine 101 1st shuttle table 102 2nd shuttle table 103 1st traveling rail 104 2nd traveling rail 104A Front rail 104B Back rail 105 Vertical movement link apparatus 105A Cylinder 105B Piston rod 105C, 105D
Connecting rod 107 chain

Claims (3)

A first traveling rail that travels on the first shuttle table and is fixed straight ;
A second traveling rail that travels on the second shuttle table and is divided into a front rail and a rear rail and is bendable ;
A vertical link device coupled to the central portion of the second travel rail;
By raising the vertical movement link device to the uppermost position, the front rail and the rear rail are each bent in a bow shape so that the pass lines in the machining area and the standby area coincide with each other, positioning the first running rail, by lowering the vertical movement linkage to the lowermost position, the second running rail, the platform as a whole is a rail that front rail and rear rail led a single shape A shuttle table device, wherein the shuttle table device is positioned below the first traveling rail in a bent state, and the second shuttle table and the first shuttle table are moved in opposite directions so that they can be exchanged. The front rail and the rear rail of the second traveling rail are further divided into a front rail and a rear rail, and each front rail and rear rail constitute a two-bar linkage mechanism connected through pins. The shuttle table device according to claim 1. The vertically moving link device constitutes a four-bar linkage mechanism comprising a cylinder, its piston rod, and two connecting rods, and the connecting rods are the rear end portion of the front rail of the second traveling rail and the front end portion of the rear rail . The shuttle table device according to claim 1, wherein the shuttle table device is coupled to each other.

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