JPH0744683U - Work pallet reversing device - Google Patents

Abstract

(57) [Summary] [Objective] An object of the present invention is to provide a reversing device equipped with a mechanism for preventing manual reversal between machining processes of a transfer pallet on which a work is mounted. [Structure] Guide rails 1 and 2 for transporting and supporting a pallet WP in the transfer directions F1 and F2 are laid on both sides of a machine base 3,
In the reversing device 10 for reversing the pallet at the reversing position H by the ascending / descending motion and the revolving motion of the revolving table 8 having the positioning pins 6 and 7, the pallet is restrained at the pallet loading / unloading positions (I) and (O). The members 12 and 13 are raised and arranged respectively, and the pushing members 16 and 17 attached to the bottom surface side of the revolving table 8 alternately lower the pallet restraining member at the loading / unloading position by the reversing and raising operation of the revolving table 8. The work pallet reversing device 10 is configured to be separated from each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a manual reversing device between machining steps of a transfer pallet on which a work is mounted, and includes a mechanism for forgetting to reverse.

[0002]

[Prior art and problems]

 Conventionally, a manual reversing device, in which a transfer pallet loaded with a work is reversed by 90 to 180 degrees at a position between processing steps and then transferred by hand, sees the worker's memory and work mounting direction. It is operated while relying on. This is because the work pallet inversion requires that the work be machined from multiple directions such as front, rear, and side. In this way, if workpieces are mounted on the pallet and machined from multiple directions, high machining accuracy and setup time for workpiece mounting are reduced, so multi-step machining is performed sequentially with multiple machine tools. It is popular in processing lines.

However, in the manual pallet reversing device for the work pallet, the pallet is often sent to the next machining process by forgetting the reversing operation because the operator relies on the operator's memory and the mounting direction of the work. Occur. As a countermeasure against this, a detection side is attached to the pallet or this swivel base, the proximity sensor or limit switch checks the presence or absence of the detection side to determine the pallet direction, and if the reversing operation is forgotten, the pallet is stopped with an electromagnetic solenoid. Means for locking the pallet to prevent transfer of the pallet is provided. In addition to the large number of components, this detection blocker increases the cost by adding an electrical control system, and requires maintenance.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the problems of the conventional work pallet reversing device, and provides a reversing device having a mechanism for preventing manual reversal between machining steps of a transfer pallet carrying a work. The purpose is to

[0005]

[Means for Solving the Problems]

 The present invention is a reversing device in which guide rails for conveying and supporting a pallet in the transfer direction are laid on both sides of a machine base, and the pallet at the reversing position is reversed by the vertical movement of a revolving table having a positioning pin and the revolving motion. At the loading / unloading position of the pallet, the pallet restraint members are raised and arranged respectively, and the pushing member attached to the bottom side of the swivel table lifts the pallet restraint member at the carry-in / out position in the reverse direction of the swivel table. It is a work pallet reversing device configured to alternately descend and separate by operation.

Further, according to the present invention, the guide rails for conveying and supporting the pallet in the transfer direction are laid on both sides of the machine base, and the pallet in the inverted position can be moved up and down and 180 degrees of the revolving table having the positioning pin. In a reversing device for reversing the pallet back and forth, a pallet restraint member is arranged on one side in front of or behind the revolving table with respect to the pallet transfer direction, and when the pallet is carried into the revolving table, the pallet restraint member is unloaded. The work pallet reversing device has a structure in which the pallet is placed in the position where the pallet is received, and the pallet is rotated 180 degrees to turn the pallet back and forth. is there.

Further, according to the present invention, the guide rails for conveying and supporting the pallet in the transfer direction are laid on both sides of the machine base, and the pallet in the inverted position is lifted and lowered by a swivel table having a positioning pin and 90 to 180 degrees. In a reversing device for reversing a pallet by 90 to 180 degrees by revolving motion, pallet restraining members are arranged at two positions, a front part and a side part of the revolving table with respect to the pallet transfer direction, and the pallet to the revolving table is placed. At the time of loading, the pallet restraint members are located on the carry-out side and the side to receive the pallet, and after the pallet is inverted by the 90- to 180-degree swing motion, the pallet restraint members are positioned on the carry-in side and the side. It is a work pallet reversing device configured to send the pallet to the unloading side.

[0008]

According to the work pallet reversing device of the present invention, when the work pallet is loaded into the reversing device installed between the pre-processing step and the next processing step, if the pallet restraint member is at the correct position on the unloading side, the work pallet reversing device is moved. Allows pallet loading. Regarding pallet unloading from the reversing device, if pallet unloading is manually performed as it is, the pallet restraint member is on the unloading side and pallet unloading is blocked. Therefore, by reversing the pallet by a predetermined angle using the pallet-mounted swivel table and moving the pallet restraining member to the loading side, the pallet can be unloaded manually, and it is possible to prevent forgetting to reverse.

[0009]

【Example】

 Hereinafter, a work pallet reversing device of the present invention will be described with reference to the accompanying drawings. 1 is a plan view of a work pallet reversing device of the present invention, FIG. 2 is a side view showing the work pallet reversing device in a partially cutaway section, and FIG. 3 shows a reversing action of the work pallet reversing device of the present invention. It is a side view. Further, FIG. 4 is a plan view showing a work pallet reversing device that rotates 90 degrees to 180 degrees, and FIG. 5 is a plan view showing a work pallet reversing device that rotates 180 degrees.

In FIGS. 1 and 2, a work pallet reversing device 10 is arranged between a pre-process and a post-process, and guide rails 1 and 2 for transporting and supporting the pallet WP in the transfer directions F1 and F2 are mounted on a machine base 3. The pallet WP at the reversing position (H) is laid on both side frames 4 and 5 of the pallet by the lifting mechanism 9 that controls the vertical movement of the rotary table 8 having the positioning pins 6 and 7 and the rotary mechanism 11 that controls the rotary rotation. It has a relational structure that inverts the palette. The pallet WP is arranged above the pallet transport path at the carry-in position (I) and at the carry-out position (O) by being lifted by springs 14 and 15 containing pallet restraining members 12 and 13, respectively. Pushing members 16 and 17 attached to the bottom side of the revolving table alternately lower and invert the pallet restraining members 12 and 13 at the carry-in position (I) or the carry-out position (O) by reversing and raising operation of the revolving table 8. The structure is such that only the pallet on which the procedure is performed passes.

Next, the detailed configuration of each unit will be described. The pallet restraint member 12 at the carry-in position (I) fixes the tubular body 20 upward to the tip surface of the L-shaped bracket 19 screwed to the inner wall surface of the frame 5 on the machine base 3. Further, the pallet restraint member 13 at the carry-out position (O) fixes the cylindrical body 21 upward on the wall surface of the horizontal frame 5a on the machine base 3. Elevating shafts 22 and 23 are inserted into and supported by the respective cylinders 20 and 21, and a rising force is applied by the built-in levitation panels 14 and 15. A guide groove 26 is formed in the side walls of the elevating shafts 22 and 23 in the axial direction, and the elevating shafts 22 and 23 are stopped at the ascending end by locking bolts 24 and 25 that fit into the guide grooves 26. And regulate the amount of vertical movement. On the other hand, one of the pushing members 16 and 17 attached to the lower surface of the revolving table 8 at two places is screwed to the upper end of the lifting shaft 22 of the pallet restraining member 12 at the carry-in position (I) in the state of FIGS. The pressing portion 28 provided inside the supporting body 27 is faced, and the pressing table 28 is pushed down by the downward movement of the revolving table 8, and the lifting shaft 22 connected thereto is lowered against the levitation force of the spring 14. In the lowered position of the turning table 8, the pallet WP is on the transport path L shown by the broken line to the solid line, and the upper end of the stop bar 29 planted outside the support 27 is positioned below the transport path L. ing. At this time, although the pallet restraint member 13 in the carry-out position (O) is given a rising force by the spring 15 for levitation, the push-down portion 31 provided inside the support body 30 screwed to the upper end of the lifting shaft 23 is provided. Does not come into contact with the lower surface of the pallet, and the upper end of the stop bar 32 is positioned above the transport path L. On the other hand, when the pallet in the state shown in FIG. 1 is rotated 90 degrees in the clockwise direction (i), only one of the pushing members 16, 17 on the lower surface of the pallet becomes the pushing portion 31 of the pallet restraining member 13 at the unloading position (O 2). When the pallets face each other, as shown in FIG. 3, the upper end of the stop bar 29 is located above the transport path L, and the upper end of the stop bar 32 is located below the transport path L.

Therefore, as indicated by the solid lines in FIGS. 1 and 2, the pushing member 17 attached to the bottom side of the revolving table lowers the pallet restraint member 12 at the carry-in position (I) by the reversing lowering operation of the revolving table 8. In this state, the pallet WP from the carry-in position (I) is allowed to be carried into the reversing device, and the pallet is carried out from the carry-out position (O). It is constrained by the relationship of being located on the upper side of. For this reason, even if you forget to reverse the pallet and try to carry out the pallet from the carry-out position (O) by hand, it cannot be done because it is restricted. Next, when the pallet is reversed 90 degrees in the clockwise direction (i) by the ascending and descending motions of the revolving table 8, the relationship shown in FIG. 3 is obtained, and the pallet WP from the carry-in position (I) into the reversing device. The pallet is unloaded from the unloading position (O) by restraining the loading and unloading because the upper end of the pallet restraining member 13 stop bar 32 is located below the transport path L. Therefore, the pallet can be carried out from the carry-out position (O) by hand without forgetting to reverse the pallet. After carrying out the pallet, the pallet is reversed 90 degrees counterclockwise (b) by the ascending and descending motions of the revolving table 8 and returned to the relationship shown in FIG. 1 again into the pallet WP reversing device from the carry-in position (I). Wait for the delivery of.

The present invention is not limited to the above-described one embodiment, and design changes can be made within the scope of the invention. For example, as shown in FIG. 4, guide rails 1 and 2 for transporting and supporting the pallet WP in the transfer direction are laid on both sides of the machine base 3, and the pallet in the inverted position has a turning table having positioning pins 6 and 7. It is a reversing device for reversing the pallet 90 degrees to 180 degrees by the ascending / descending movement of 8 and the swiveling movement of 90 degrees to 180 degrees, and comprises a front part 8a and a side part 8b of the revolving table 8 with respect to the pallet transfer direction. L-shaped pallet restraint members 12 'and 13' are arranged at the locations. As a result, when the pallet restraint members 12 'and 13' are located on the carry-out side and the side when the pallet is carried into the revolving table 8, the pallet from the carry-in position (I) can be received. After reversing the pallet by the turning motion of 180 degrees to 180 degrees, the pallet restraining members 12 ′ and 13 ′ may be located on the loading side and the lateral side so that the pallet can be sent to the unloading side. good.

Further, in the case of a type that performs 180-degree turning motion, as shown in FIG. 5, a pallet restraint member 12 ′ is arranged on one side of the front 8 a or the rear 8 b of the turning table 8 with respect to the pallet transfer direction. During the loading of the pallet onto the revolving table 8, the pallet restraint member 12 ′ is located on the unloading side and can receive the pallet WP. After this, the work pallet reversing device 200 may be configured such that, after the pallet is turned back and forth by 180 degrees of turning motion, the pallet restraining member 12 'is on the carry-in side and the pallet can be sent to the carry-out side.

[0015]

【effect】

 According to the present invention, the guide rails for conveying and supporting the pallet in the transfer direction are laid on both sides of the machine base, and the pallet at the reversing position is turned up and down by the turning table having the positioning pin and the pallet is turned upside down. In the reversing device, the pallet restraint members are raised and placed at the pallet loading / unloading positions, respectively, and the pushing member attached to the bottom side of the swivel table swivels the pallet restraint members at the loading / unloading positions. Since it is configured to alternately descend and separate by the reversing up and down movement of the work pallet, if the work pallet is carried in to the reversing device installed between the pre-processing step and the next processing step, the pallet unloading can be carried out manually if the above steps are carried out. The pallet restraint member can be moved to the loading side by reversing the pallet by a predetermined angle by the turning table equipped with the pallet. In the pallet unloading can be carried out manually, the inverted forget can be completely prevented.

[Brief description of drawings]

FIG. 1 is a plan view of a work pallet reversing device of the present invention.

FIG. 2 is a side view showing the work pallet reversing device in a partially cutaway cross section.

FIG. 3 is a side view showing the reversing action of the work pallet reversing device of the present invention.

FIG. 4 is a plan view showing a work pallet reversing device which rotates 90 degrees and 180 degrees.

FIG. 5 is a plan view showing a work pallet reversing device which rotates 180 degrees.

[Explanation of symbols]

 1, 2 Guide rails 3 Machine stand H Inversion position WP Pallet 6,7 Positioning pin 8 Swing table 9 Elevating mechanism 11 Swing mechanism (I) Carrying in position (O) Carrying out position 12, 13, 12 ', 13' Pallet restraining member 16 , 17 Pushing member 27, 30 Supporting body 28.31 Pushing down portion 29, 32 Stop bar L Conveying path 10, 100, 200 Reversing device

Claims (3)

[Scope of utility model registration request] 1. Reversing in which guide rails for conveying and supporting a pallet in a transfer direction are laid on both sides of a machine base, and the pallet in a reversing position is reversed by the ascending and descending motion of a revolving table having a positioning pin and the revolving motion. In the machine, pallet restraint members are raised and placed respectively at the pallet loading / unloading positions, and the pushing member attached to the bottom side of the swivel table inverts the pallet restraint members at the loading / unloading position to invert the swivel table. Work pallet reversing device configured to alternately descend and separate by means of. 2. A guide rail for conveying and supporting a pallet in a transfer direction is laid on both sides of a machine base, and a pallet in a reversing position is lifted and lowered by a revolving table having positioning pins.
In a reversing device for reversing a pallet back and forth by a turning motion of 80 degrees, a pallet restraint member is arranged on one side before or after the turning table with respect to the pallet transfer direction, and when the pallet is carried into the turntable, the pallet restraint member is placed. Is located on the carry-out side and receives the pallet, and after the pallet is turned back and forth by the 180 degree turning motion, the pallet restraint member is located on the carry-in side and the pallet can be sent to the carry-out side. apparatus. 3. Guide rails for conveying and supporting the pallet in the transfer direction are laid on both sides of the machine base, and the pallet at the reversing position is moved up and down by a swivel table having a positioning pin.
Rotate the pallet 90 degrees to 180 degrees
In a reversing device for reversing the pallet, pallet restraint members are arranged at two positions, a front part and a side part of the revolving table with respect to the pallet transfer direction, and when the pallet is carried into the revolving table, the pallet restraint member and the unloading side are disposed. After the pallet is located at one side and receives the pallet and is rotated by 90 to 180 degrees to turn the pallet upside down, the pallet restraint member is located at the loading side and the lateral side so that the pallet can be sent to the unloading side. Pallet reversing device.