JPH0473438U

JPH0473438U -

Info

Publication number: JPH0473438U
Application number: JP11665190U
Authority: JP
Priority date: 1990-11-08
Filing date: 1990-11-08
Publication date: 1992-06-26

Description

[Brief explanation of the drawing]

第１図は本考案に係る自動パレツト交換装置の
一実施例を示す平面図であり、第２図は第１図中
Ａ−Ａ拡大断面図であり、第３図は第１図中Ｂ矢
視図であり、第４図および第５図はテーブル上で
のパレツトとシフタの分離および係合状態を示す
正面図であり、第６図はシフタ駆動装置の油圧ダ
イアグラムである。図面中、１はシフタ、２はテーブル、３，６は
パレツト、４はパレツト交換装置、５はパレツト
台、７は油圧シリンダ、８は前進位置センサ、９
は後退位置センサ、１０は油圧シリンダ、１１は
右位置センサ、１２は左位置センサ、１４，１５
はリミツトスイツチ、１６はクランプシリンダ、
１７，１８はリミツトスイツチ、１９は第１ソレ
ノイドバルブ、２０は第２ソレノイドバルブであ
る。 FIG. 1 is a plan view showing an embodiment of an automatic pallet exchange device according to the present invention, FIG. 2 is an enlarged sectional view taken along the line A-A in FIG. 1, and FIG. FIG. 4 and FIG. 5 are front views showing the separated and engaged states of the pallet and shifter on the table, and FIG. 6 is a hydraulic diagram of the shifter drive device. In the drawing, 1 is a shifter, 2 is a table, 3 and 6 are pallets, 4 is a pallet exchange device, 5 is a pallet stand, 7 is a hydraulic cylinder, 8 is a forward position sensor, 9
is a backward position sensor, 10 is a hydraulic cylinder, 11 is a right position sensor, 12 is a left position sensor, 14, 15
is a limit switch, 16 is a clamp cylinder,
17 and 18 are limit switches, 19 is a first solenoid valve, and 20 is a second solenoid valve.

Claims

[Claims for Utility Model Registration] Two pallets that are alternately moved for exchange between a table on the NC machine tool side that is moved to two pallet exchange positions and two pallet stands on the pallet exchange device side. a shifter that is provided between both pallet stands of the pallet exchange device and is separably engaged with the pallets on the table and the pallet stand, and a hydraulic cylinder that drives the shifter. A side-by-side automatic pallet exchange device, comprising: a pallet presence/absence detection means for detecting the presence or absence of a pallet on the pallet table; a shifter longitudinal position detection means for detecting the longitudinal position of the shifter; and a lateral position of the shifter. a shifter left and right position detection means for detecting the shifter; an engagement state detection means for detecting the engagement state between the pallet on the table and the shifter; and an engagement state detection means for detecting the engagement state between the shifter and the pallet based on the detection signals from each of these detection means. identify the engaged state;
In the engaged state, the shifter moves back and forth at low speed,
An automatic pallet changing device characterized by comprising shifter operating speed switching means for moving the shifter back and forth at high speed in a disengaged state.