JPS6316942A - Automatic pallet exchanger of machine tool - Google Patents

Abstract

PURPOSE:To achieve high speed pallet exchange by moving two pallets by means of one driving device and accelerating and reducing the moving speed of pallets by only use of a simple mechanism in a linear moving type automatic pallet exchanger. CONSTITUTION:A slide is divided into two sliders 42 and 43 at the stand-by position of the actuating section 41 provided at the end of one arm 35 swivelled by a rotary shaft 34. The slider in the swivelling side of the arm 35 from this stand-by position is adapted to move linearly to the side of a machine 11 by the actuating section 41. The engaging bodies 52 provided integrally to the sliders 42 and 43 are adapted to be engaged with pallets 17 and 18 respectively for moving the same. Consequently, the two sliders 42 and 43 can be driven by the one arm 35. In addition, a slider lock mechanism and a slider lock relief mechanism are adapted to prevent the slider 42 and 43 in the side not worked by the arm 35 from malfunction.

Description

[Detailed description of the invention]

[Object of the Invention] (Industrial Application Field) The present invention relates to a tt-pallet changer for a machining center. (Prior art) When the machining center issues IK, the work 1? Tsu 1~
11- Loading and unloading of workpieces by using 11- is indispensable. Palette-related 'JA'
The scales can be classified into the following four types. A, Automatic Palette] ~ Change 1 (abbreviation to PC
) Machine loading and unloading devices include those that are integrated with the machine and those that are performed manually. Furthermore, there are some that are integrated with a large number of palettes 1 to 1. B. Pallet transport device] There are transport vehicles, etc., and there is a rt for loading and unloading pallets during transportation. C, Palette 1~S]・Tsuka There are those that are integrated with the above-mentioned ΔPC, and those that are independently -C, and those that are German vf require a conveyance device Wi, and one king multi-stage. At the ceremony, lift equipment etc. were also installed.
I'm there. D. Workpiece removal machine J GJ There is also an independent version of B that uses a part of the removal table APC and S1 to Tsuka. In addition, some machines have a separate workpiece powder removal device (reversing type, etc.). Flexible Manufacturing System (FM)
S) How can the control system be fully equipped with these and control the electric machine?
However, if the scale of labor saving is reduced to the minimum, it becomes a device that combines two pallets with the above-mentioned A. During machining, the workpiece on the other pallet waiting in the APC is manually removed, a new material is attached, and the workpiece is placed on standby.As soon as machining on one pallet is finished, one pallet is automatically connected to the other pallet. The workpieces are replaced (some are done manually), the workpieces on one pallet are manually removed, a new material is attached, and the workpieces are placed on standby in the APC.The same process is repeated alternately for the one pallet and the other pallet.Next Here is a general explanation of the current state of this type of simplified APC:
It's a simple APC with just two pallets.

[There are also two methods as follows. (1) ++-Tarisha 1 hell type [-1-Tarishi 1) 1 ~ le type, as shown in Fig. 5, two pallets A, front and rear, are placed on A I]C, which is rotated horizontally.
, [3 can be stored in 1'2. Previous (1st previous) pallet B4;
The workpiece is loaded and unloaded at r, 'II, and is extruded from the APC to the pallet on the other side (on the other side) and loaded onto the machine M, and unloaded onto the APC when 7JI I is completed. When this un-unding is completed, the APC turns 180 degrees and pushes out the next pallet B to the machine M. Repeat this for the intersection. (2) Linear movement type Figure 6 explains typical movements of the linear movement type. Two pallets l-A and B can be stored in the APC, and workpieces can be loaded and unloaded at each position. Some pallets can be manually rotated for convenience when loading and unloading workpieces, while others cannot. The movement of pallet exchange is as follows: First, machine M side stops opposite position A, and pallets 1 to A that were at position A are transferred to machine M.
Extrude to finish loading. After processing is completed, the machine M returns to the loading position again and pulls into the processed pallet/1-APC side. Machine M is empty bullet.”
: Move to the opposite side of position 8 on the left. Then, Pa 1 knot B is pushed out to machine l-, and when loading is finished,
Machine M starts working. After completing the work, the machine Mt returns to position B again and returns to pallet 1 where tut I has been completed.8
11 A It will be picked up by the PC. Machine M moves to the right side to position A with the empty pallet, and pallets [~A] are loaded. Such operations are repeated. The currently used linear movable APC as shown in Fig. 6 is a drive device for pushing out and retracting pallets, which is hooked onto each pallet 1 by a hydraulic cylinder device or button on the side. Have a mobile device etc. For example, as shown in FIG. 7, a T-strand chain 1 is arranged in a square shape on the APC, and a member 20 integrated with pallets A and B is fitted into a part of the chain 1 into the engagement groove 3. Some devices are provided with an engaging portion 4 that does this. Then, when replacing pallet B on the machine with pallets 1 to △, rotate the engaging part 4 one turn in the clockwise direction from the position shown in the diagram 11, and move the engaging part 4 a to engage the engaging part 4. Insert the part 4 into the engagement groove 3 of the pallet B between the 8 positions, and take out the pallet 8 from the machine M and barre the engaging part 4 by the movement C. Take it out from the engagement groove 3 of l-B, insert it into the engagement groove 3 of the pallet, push the pallet from 8P C, 1- to the A position of the machine by moving d, and then remove it from the engagement groove 3 by moving a. Take out the part 4 from the engagement groove 3 of the pallet hA.
When replacing pallet Δ of machine 10 with pallet B,
The engaging portion 4 is rotated once in the counterclockwise h1 direction from the illustrated position. Further, as shown in FIG. 8, arms 6 that are rotated by rotation shafts 5 are installed on both sides of the APC, and a pallet A is attached to the tip of each arm 186. Each pallet Δ is provided with an engaging portion 8 that is fitted into the arcuate engaging groove 7 integral with B, and by rotating the arms 6 on both sides. There is also a model b in which B is moved between the position shown in the APC 10 and the A position of the machine or the 8th and 9th positions. (Problem to be solved by the invention) As shown in FIG. It is difficult to significantly increase the moving speed of the pallet with the lit moving device using a chain.In high-speed operation, it is difficult to fit the engaging part 4 on the chain side into the engaging groove 3 on the pallet side. This type of hook is likely to cause trouble during operation, and in order to perform high-speed operation, acceleration/deceleration L'l tl is required to control the pallet to a low speed when starting and stopping the pallet.
(This is because it is not easy to do this.) Furthermore, in the conventional example shown in FIG. The purpose of the present invention is to integrate the driving device for moving two pallets in a linear moving APC, and to accelerate and decelerate the pallet moving speed using only a mechanical device. The object of the present invention is to provide a changer for over-the-air pallets that can speed up pallet exchange and reduce machine stoppage time. [Structure of the Invention] (Means for Solving Problems) Part 1 The first invention has two pallet 1 entry/exit positions 12 and 13 on the machine side and two workpiece set positions 1 on the outside.
In an automatic pallet changer in which two pallets 17 and 18 are alternately moved between the two pallets 17 and 116 through parallel movement paths, a wooden arm 35 rotated by a rotation shaft 34 and a wooden arm 35 of this arm 1135 The arm 35 is divided into two by the negative drive part 41 provided at the tip and the standby position ◇IN of this actuating part 41, and only the turning side of the arm 35 from this standby position is linearly moved toward the machine side by the negative drive part 41. -b is composed of two sliders 42, 43 and an engaging body 52 which is integrally provided with each slider 42, 43 and can be freely engaged with and detached from the two pallets 17, 18, respectively. In addition to the configuration of the first aspect of the present invention, a second aspect of the present invention provides a slider locking mechanism 61 that locks the two sliders 42 and 43 at standby positions, and 35
The slider locking mechanism 61 on the side on which the
Slider 1 that is released in conjunction with the start of the
It also does this. Third invention [Well, in addition to the configuration of the first invention, from the pallet loading/unloading position jf512.13 to the work set position fff'/1! Palettes 1~ pulled out on i, 16
A swivel base 81 that fits and supports 17° 18, and this swivel base 8
a swivel base fixing mechanism 91 that fixes the rotation of the swivel base 81 by a manual lever 92 when the swivel base 81 is in the 0 position where the pallet can be placed between the machine and the machine; The pallet 17 is rotated in conjunction with the rotation operation of the swivel base 81 based on the release of the swivel base fixing mechanism 91.
．． pallet fixing mechanism 101 for fixing pallet 18 to rotating base 81
This is the right thing to do. (Function) In the first aspect of the present invention, when the arm 35 is turned from the standby position to one side, the actuating portion 41 of this arm 35 fits only into the slider 42 on the turning side, and this one slider 42 is turned to the other side. The engaging body 52 is separated from the slider 43 and moved to the machine 11 side, and is numbered on one of the sliders 42.
Move one pallet 17 to work cellar 1 at position 15 by
from there to the pallet loading/unloading position 12 on the machine side. In this case, since the actuating portion 41 of the arm 35 draws a substantially semicircular motion, the sine component of the moving speed of the actuating portion 41 is expressed as the moving speed of the slider 42 and the pallet 1 at 17. Therefore, even if the arm 35 is rotated at a constant speed, the movement of the pallet 17 is always started at a low speed, and then this Palette] -17 is arm 3
The speed is increased until it reaches the maximum speed at the 90° rotation position of machine 5, and this pallet 17 is then moved to pallet entry/exit position 1 of machine 10.
At 2, the speed is decelerated until it is stopped +I-. In this way, from the start to the maximum speed state to the stop, the pa 1 notch 1 to 17
Acceleration/deceleration control is automatically optimized. The one pallet 17 is returned to the work cellar 1 to the position 15 by rotating the arm 35 from the machine side to the standby side. Further, when the arm 35 is turned from the standby position to the opposite side, the arm 350 actuating portion 41 engages only with the other slider 43, and the other slider 43 is separated from the one slider 42. The engaging body 52 installed on the other slider 43 moves the other pallets 1 to 18 from the work setting position 16 to the pallet loading/unloading position 13 on the machine side. The same pallet h speed control as described above is performed. In this way, the two sliders 42 and 43 are respectively moved down by one arm 35, and the two pallets 17
．． 18 are respectively moved between the worklet position capture and 16 and the pallet entry/exit positions 12 and 13 on the machine side. Next, a second aspect of the present invention, in addition to the effect of the present invention described in No. 1, 1], prevents the slider 42, 43 from being inadvertently moved in the standby position. 3
5 is in the standby position, the sliders 42 and 43 are respectively engaged by the slider locking mechanism 61, and when the arm 35 is pivoted from the standby position,
The slider locking mechanism 61 on the rotating side is released by a slider locking release mechanism 71 that is linked to the start of the arm 35.Next, the third invention is based on the operation of the first invention. In addition, the pallets 17 and 18 at positions 15 and 16 can be freely rotated to the workpieces 1 to 1 by the swivel table 81, making it easy for workers to set up the workpieces for the pallets 1 to 1. When rotating the swivel base 81 from a certain direction, the swivel base fixing mechanism 91 is released by operating the manual collar 92. When the operator manually rotates the platform 81 from its original position, which can handle pallet loading and unloading as required when setting the workpiece,
In conjunction with the rotation of the swivel table 810, the pallet fixing mechanism 101 is immediately activated, and pallets 1 to 17.18 are moved to the swivel table 810.
1, and the pallets 1 to 1 are rotated together with a rotating table 81. When the work cellar 1~ for this pallet is completed and the swivel base 81 is placed in the irF rotation open position, the pallet fixing mechanism 101 is released and at the same time the swivel base fixing mechanism 91 is manually operated. Since the lever 92 is operable, the swivel base fixing mechanism 91 allows the swivel base 8 to be moved.
1 is fixed, and the pallets h17 and 18 are prepared to be moved to the machine 11 side. Then, as described above, the engaging body 52 is operated to move the pallet toward the machine. (Embodiments) The present invention will now be described in detail with reference to embodiments shown in FIGS. 1 to 4. Figure 1 shows the two locations on the machine 11 side where the pallet enters and exits.
2.13 and the external APC main body 1402 work set positions 1715 and 16, two pallets 17 and 18 are alternately moved through parallel movement paths from O1 to pallet change P. There is. In the machine 11 (4↓), as shown in FIG. 1 and FIG. 1 ~ 17.18 is served 1 ■, location - 1 ~ pin 2
It is fixed by 3. A clamping device, an indexing device, etc. for the pallets 17 and 18 are built into the four noddles 22. As shown in FIGS. 2 and 3, the APC main body 14 is connected to a + side frame 14a and a small side frame 141), and a reducer with a heptad is attached to the bottom of the lower frame 141). 31 is attached, a pinion 32 is integrally fitted to the output shaft of this reducer 31, and J: is attached to the upper and lower bearings 33.
The rotating shaft 34 is held by the rotating white stone, and this rotating shaft 34
A wooden arm 35, which is rotated by this shaft, is integrally attached to one end of the shaft, and a pin 36, which is integrally fitted to the base of the rotating shaft 34, is engaged with the pinion 32. Then, the gear 183 is
5 is rotated. As shown in FIGS. 2 and 3, a number of dowels 38 are provided at the bottom of the arm rotation shaft 34 via a plate 37.
is integrally taken (=jU), and the + of each dowel 38 is
A proximity switch group 39 facing each dowel is disposed on the side. Then, the rotation (starting, stopping, etc.) of the shaft 34 is controlled by detecting the dowel 38 using the proximity switch 1j139. Furthermore, as shown in FIG. 2 J3 and FIG. The other side that matches 1-40
1) is provided, and the maximum turning angle of the arm 35 is determined. As shown in FIG. 2, a roller 41 serving as an actuating portion is pivotally supported on the tip of the arm 35.
1 is shown in FIG. 3 and FIG.
．． 43 is fitted into a roller recess S44.45 perpendicular to the sliding direction. As shown in FIGS. 2 and 3, two sliders 42 and 43 are provided on the bottom surface of the main body + side frame 14a.
Linear guide bar 46 with 1 and 11 holes taken in each phase
is slidably fitted through the slide portion 47 to the
Of the sliders 42 , 43 , only the one on the pivoting side of the arm 35 from the timing variable is linearly moved by the roller 41 along the guide bar 46 . As shown in FIG. 2, hooks 52 as engaging bodies are integrally provided on each of the sliders 42 and 43 via footer reporters 51, respectively. 18, side hooks 53 are attached to the pallet 1 which can be freely engaged with and detached from the hooks 52. The hooks 52 and 53 are connected and disconnected from the pallet 17.
, 18, etc. Figure 2 shows 11 sliders (8
61 is shown. This m measure 61 is connected to the slider 4.
2゜43 respectively (+I C-J hook 62
The hook 63 is attached to the upper frame 14b of the main body so as to face each hook 62. This hook 63 is elastically biased upward by a spring inside the case 64. FIG. 4 shows a slider lock release mechanism 71 that releases the slider lock mechanism 61 on the side on which the arm 35 rotates in conjunction with the start of the arm 35. In this mechanism 71, the central portion of a lever 73 is supported by a rotating white stone via a shaft 72 on the lower flail 14b, and a cam 74 provided at the tip of the arm 1135 is attached to one end of the lever 73. A pin 76 that comes into contact with the inclined surface 75 is installed i
and the other end 77 of the moeding lever 73 is connected to the knock 63.
It is engaged with one of the following. As shown in FIG. 1, pallets 17 and 18 pulled out from the pallet drawer 11/neck 12 and 13 on the machine side to this position 15 and 16 are placed at work set positions F/15 and 16 of the APC. A swivel base 81 for fitting and supporting is provided. This swivel base 81 has -F as shown in FIG.
A shaped protrusion 82 is integrally formed, and a pallet support roller 83 is rotatably fitted to both side surfaces of the protrusion 820. In addition, this swivel table 81 pivotally supports a number of rollers 86 at its lower part, which are guided by the inner circumferential surface of a hole 85 bored in the base plate 84 . A large number of [1-ra] 87 are pivotally supported on the outer peripheral surface. Therefore, this turning table 81 can be turned #j by hand when receiving the barens h17 and 18 and then transferring the workpieces to the pallets i to 10 (Iff)FT. As shown in FIG. 2, a groove 8 for inserting the hook 1j boater 51 is provided at the bottom of the + side room 14a, at the center of the base plays 1 to 84 and the swivel table 81.
8 has been formed. FIGS. 3 and 4 show a state in which the swivel table 81 can load and unload pallets between the machine and the machine (the state shown in FIG. 1 to FIG. 3 = 19-). ), a swivel base fixing mechanism 91 for fixing the rotation of this swivel base 81 is shown. In this mechanism 91, a focusing/operating part 94 is integrally provided on the inner end of a shaft 93 rotated by a manual lever 92, and the tip of this operating part 94 rests on a pin holding part 95 to Engages with a part of the positioning pin 96 held so as to be movable upward,
This pin 96 is urged upward by a spring 97. On the other hand, 6F shown in FIGS. 1 and 3,
Four pin holes 98a and 98b are formed in the swivel base 81, into which the pins 96 can be inserted and fixed each time the swivel base 81 is rotated through 90 degrees. One pin hole 98a transforms into the other three pin holes 98b and is formed deeply for a reason that will be explained later. In FIG. 1, a pallet 17.
A pallet fixing mechanism 101 is shown that fixes the pallet 18 to the swivel base 81. In this mechanism 101, a stopper 102 for the pallet member 1F is fixed to one end face of the T-shaped protrusion 82, and a latch 103 for the valves 1 to 1L is fixed to the upper surface of the other end of the ■-shaped protrusion 82. 1 is attached, = 20- This latch 103 has a central part that is connected to the same movement by a shaft 104
1Y! The pallet retainer 1F convex portion 106 at the tip is urged to protrude from the soil surface 1 of the convex portion 82 by a spring 105 provided on the lower side, and this wrap 10
A cam 101 that pushes the opposite side of 30 through an intervening member to push the front mounting protrusion 106 against the spring 105.
is installed on the base plate 84. Next, the operation of this embodiment will be explained. Since the machine slide base 21 and the 4J dollar 22 slide in the X-axis direction at h, When the work on the machine is finished, the baren 17 returns to the C pallet loading/unloading position 12, and when the pallet engine command is issued,
The hook 52 on the APC side moves to the machine side, and the hook 52 stops at the position where the groove is dry, above the hook 1-J of the hook 53, which is the only one on the pallet 17. At this time, the hook reporter 51 is mounted on the swivel base 81 and the base plate 8.
It will be inserted at 88, which is 4th grade divided by the center. With the hooks 52, 53 overlapped, the pallet 17 is unclamped internally and stands on one arm, the hooks 52, 53 interlock with each other, and the barren [11] are released from the machine location 1 to pin 23. The hook 52 pulls the pallet 17 and guides it to the swivel base 81, where it stops. Since the hooks 52 and 53 are four hooked together, the pallet 17 is placed on the swivel base 8.
It never moves from 1. Then, the machine's υ dollar 22 is located at the pallet entry/exit position 1.
3, move to Baren 1 without any. Then, as shown in FIG. 1, the pallet 18 located on the APC is pushed out toward the machine by the hook 52 and stopped at 4J$220 of the machine. The pallet 18 is lowered and fixed to the 1 noddle 22, and processing begins. hook 5
2 is disengaged due to the lowering of the pallet 18, so it temporarily retreats to the APC side. When the pallet 18 finishes its work and returns to the pallet entry/exit position 13 on the machine, the hook 52 moves again and the hook 5
It stops at the position where the three points overlap. The pallet 18 is unclamped and raised, the hooks 52, 53 are engaged, and the pallet 18 is returned to the swivel table. The saddle 22 moves to the pallet loading/unloading position 12 without a pallet, and receives the pallet 17 with a new workpiece attached thereto. In this way pallets 17, 18 are alternately loaded into the machine,
Although unloaded, the order of this movement does not differ from the ready-made one. This device has an arm 3 that moves the hooks F)2 on both sides.
The mechanism centered on 5 is characterized by 6350 rotations of day 6, which moves sliders 42 and 43 via rollers 41 in the pallet loading direction. In Figure 4, A1135
When the arm 35 rotates 172 degrees counterclockwise and returns, the slider 42 synchronizes with it and returns to 1-1. When the arm 35 rotates 112 degrees in the hour direction and returns, the slider 43 synchronizes with it and returns to h.
-Revenge. At this time, the linear motion velocity of each slider 42, 43 changes according to a sin curve with respect to the uniform rotation of the arm 35. When the arm 35 turns in the direction of one slider 42 or 43, the roller 41 comes off from the other slider 43 or 42, so the other slider 43 or 4
2, the presser foot may run out and move. This is controlled by the hook 62 on the side of the slider and the hook 6 on the frame side.
It is 3. Both sliders 42 and 43 are hook 6
3, but if the slider 42 or 43 moves, use the cam 14 attached to the tip of the arm 35 to release the hook 63 on which the slider moves.
Push up the pin 76 at the tip of the lever 13, push down the hook 63 on the frame side with the opposite side 77 of the lever 73, and release the engagement of the hooks 62, 63. Until this knock is released, the slider 42 is moved so that the movement of the arm 35 does not become the movement of the sliders 42 and 43.
．． A slight clearance is provided between the roller 41 and the roller 41. Slider 42.
If 43 returns to the original position of ΔPC, hook 62.6
3 automatically engages and stops the slider movement. When rotating the swivel table 81 by hand, the swivel table 81 can be turned freely by pushing up a manual lever 92 protruding from the outside of the frame and handling the positioning pin 96 fitted into a hole 98a on the bottom surface of the swivel table. Since there are four pin holes 98a and 98b for every 90 degrees of rotation, it is possible to fix every 90 degrees. Of the four pin holes, the hole 98a that is oriented for loading and unloading with the machine is deeper than the other three holes 98b, so when the pin 96 is inserted into it, the lever 92 will be lowered. , press the limit switch (not shown) and press the button!
You can check the direction of tltT1-ding. When the swivel table 81 on which the pallets 17 and 18 are placed is turned by hand,
The pallet hook 53 is removed from the hook 52. At this time, in order to prevent the pallets 17 and 18 from moving, the pallets are placed between the stopper 102 and the wrap 1 on the opposite side (machine side).
It is locked by the locking protrusion 106 of 03. The convex portion 106 of this latch 103 is pulled downward by the cam 107 when the swivel table is used for automatic loading, but when the swivel table 81 is rotated, the latch 103 is moved by the cam before the hooks 52 and 53 are disengaged. 107, the protrusion 106 is lifted by the spring 105, and the pallet 17,1
8 is fixed to a swivel base 81. [Effects of the Invention] According to the first aspect of the present invention, in a linear movable auto pallet changer, the actuating part provided at the tip of one arm that is rotated by the arm around the rotation axis is in a standby position. The structure is such that the two sliders are divided into two parts, and only the slider on the swing side of the arm from the standby position is moved directly to the machine side by the actuating section. i! Since the engaging bodies provided integrally on each slider are engaged with the pallets to move the pallets, each of the two sliders can be driven by one swing arm. It is possible to simplify the driving device, and even if the arm is rotated at high speed, the pallet is moved smoothly at low speed during starting and stopping, and yet the overall speed is determined by the rotation time of the arm. The pallet 1 is moved, and ideal acceleration/deceleration control of the moving speed is automatically performed. Therefore, the down time of the machine can be reduced, and the efficiency h is better. According to the second invention, in addition to the effects of the first invention, the slider locking mechanism and the slider locking release mechanism can prevent malfunction of the slider on the side that is not actuated by the arm. According to the invention of No. 3M, in addition to the effect of the invention of No. 1I], when the orientation of the pallet is fixed, the swivel base is fixed by the swivel base fixing mechanism, and when the orientation of the pallet is changed, the swivel base is fixed. Since the pallet fixing mechanism automatically fixes pallets 1 to 1 to the rotating base, the pallet can be rotated integrally with the rotating base by simply releasing the rotating base fixing mechanism with a manual lever, and the pallet can be rotated integrally with the rotating base. Workpieces can be set easily, eliminating malfunctions.

[Brief explanation of the drawing]

Figure 1 shows an O-1 pallet changer (APC) of the present invention.
), FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, FIG. 3 is a cross-sectional view taken along ■--■ in FIG. TV line surface view Figure 5 shows the rotary shaft i.
FIG. 6 is an explanatory diagram of a linear movable APC, and FIGS. 7 and 8 are plan views of conventional linear movable APCs. 11...Machine, 12.13...Pallet entry/exit position, 1
5, 16...Work safe 1 position, 17.18...Pallet, 34...Rotation axis, 35...Arm, 41...Roller as operating part, 42.43...Slider, 52...
Hook as an engaging body, 61...Slider section 1F? ! Structure, 11...Slider related IF release mechanism, 81...Swivel base,
91...Swivel base fixing mechanism, 101...Pallet fixing mechanism. July 8, 1986

Claims (3)

[Claims] (1) Two pallet entry/exit positions on the machine side and two on the outside
An automatic pallet changer, in which two pallets are alternately moved between a workpiece setting position and a workpiece setting position, has one arm that is rotated by a rotation axis, and a machine installed at the tip of this arm. an actuating part, two sliders that are divided into two parts at a standby position of this actuating part, and only the turning side of the arm from this standby position is linearly moved toward the machine side by this actuating part, and an integral part of each slider. An automatic pallet changer for a machining center, characterized in that the automatic pallet changer for a machining center is provided with an engaging body that can be freely engaged and detached from two pallets. (2) Two pallet entry/exit positions on the machine side and two on the outside
An automatic pallet changer, in which two pallets are alternately moved between a workpiece setting position and a workpiece setting position, has one arm that is rotated by a rotation axis, and a machine installed at the tip of this arm. an actuating part, two sliders that are divided into two parts at a standby position of this actuating part, and only the turning side of the arm from this standby position is linearly moved toward the machine side by this actuating part, and an integral part of each slider. a slider locking mechanism that locks each of the two sliders in a standby position, and a slider locking mechanism on the side on which the arm rotates, which is provided on the arm and is attached to the two pallets. An automatic pallet changer for a machining center, comprising a slider lock release mechanism that releases in conjunction with the start of the slider. (3) Two pallet entry/exit positions on the machine side and two on the outside
An automatic pallet changer, in which two pallets are alternately moved between a workpiece setting position and a workpiece setting position, has one arm that is rotated by a rotation axis, and a machine installed at the tip of this arm. an actuating part, two sliders that are divided into two parts at a standby position of this actuating part, and only the turning side of the arm from this standby position is linearly moved toward the machine side by this actuating part, and an integral part of each slider. an engaging body that is provided in the machine and can be freely engaged with and detached from the two pallets, a swivel base that engages and supports the pallet pulled out from the pallet loading/unloading position to the work setting position, and this swivel base that moves the pallet between the machine and the machine. A swivel base fixing mechanism that fixes the rotation of the swivel base using a manual lever when the swivel base is in the original position where it can be loaded and unloaded; An automatic pallet changer for a machining center, comprising: a pallet fixing mechanism for fixing the pallet to a rotating table.