JPS59201760A - Automatic chuck cleaner - Google Patents

Abstract

PURPOSE:To easily remove polished chips without fail during a short period of time by providing a relatively movable supporting member and a chip removing member turning around the shaft of the supporting member while making contact with the fixed surface on the workpiece fixing surface of surface grinder. CONSTITUTION:For removing chips on a chuck 1, an initiation signal Sin is sent to main and sub-control circuits 25, 31 to permit a reversible motor 14 to initiate its forward rotation and a wiper motor 15 to initiate a reciprocating motion, and a movable member 7 goes ahead by the forward rotation of the motor 14 to permit a chip removing member 17 to scan the surface 1a of the chuck 1 while turning around the output shaft of the motor 15, so that a slide seal cleans the chuck 1 both longitudinally L and transversely W. When the actuator of a microswitch 26 strikes a stopper 28, an inversion signal is sent to permit the motor 14 to be reversed, allowing the movable member 7 to return. During this returning motion, the member 17 keeps the reciprocating motion to successively clean the chuck 1, and polishing chips are cleaned without fail until a stop signal Sfi is supplied.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an automatic chuck cleaner for a surface grinding machine that grinds surfaces.

In the above-mentioned surface grinder, the surface of the workpiece fixed on the chuck is ground by a grinder, and at this time, grinding debris is generated and the grinding debris is deposited on the chuck. One addend is removed, and then several new workpieces are created, but at that time, the grinding debris accumulated on the chuck must be removed from the chuck. Conventionally, the grinding debris accumulated on the chuck must be removed. When removing from C
(The worker was sweeping the surface of the chuck with a rubber spatula in his hand. To scrape the grinding accuracy of the workpiece, he must first clean the debris on the chuck. It has to be done carefully, but since the removal work was done manually as described above, there are some inconveniences: 1. Not only do the removal work become messy, but it also leaves some residue left unswept, which is time-consuming.

SUMMARY OF THE INVENTION In view of the above points, an object of the present invention is to provide a cleaner that can reliably and easily remove grinding debris in a short period of time.

The purpose of this is to provide an automatic chuck cleaner of the type described at the beginning with a support part that is movable in parallel relative to the workpiece fixing surface of the chuck, and a support member that is movable in parallel to the workpiece fixing surface of the chuck while being in contact with the workpiece fixing surface of the chuck. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to drawings showing embodiments thereof.

FIG. 1 is a plan view of an automatic cleaner attached to a chuck ITC of a surface grinding machine. The chuck l shown in the figure is configured as a so-called magnetic chuck, and if the workpiece is placed on the entire surface of the workpiece and then a current is applied to the chuck, the workpiece will be electromagnetically attracted to the chuck l, and the chuck l will fixed on the surface of. Further, the surface grinder itself is not shown in the figure because it is not particularly necessary for the explanation.

In the figure, a guide part 2 is attached to the front surface (left side in the figure) of the magnetic chuck 1 so as to be parallel to the workpiece fixing surface la of the chuck 1. The rear surface of the chuck 1 is where the tightening square material 3 is attached. A slide sole guide plate 4 is disposed on the front side of the chuck I (lower side in the figure) between the guide member 2 and the tightening square member 3. A tightening rod 5 is arranged inside the slide sole guide plate 4, and the tightening rod 5 and the kite member 2
Or the tightening square material 3 and the 1. By tightening the groove screws 6, the slide sole guide plate 4 is attached to the guide member 2.
As shown in FIG. 2, the lower part 2a of the leading end of the guide member 2 fixed between the and the fastening square member 3 has a triangular cross-section, and the upper part 2b has a rectangular cross-section. It's cold. At the lower part of the movable member, which is generally designated by the reference numeral 7, there is formed a fitting part 8 which fits into the guide member 2 described above. is fitted. With this configuration, the movable member 7 can move in the extending direction of the guide portion 432, that is, parallel to the workpiece fixing surface 1a of the chuck (arrow A,
A' force direction (Figure 1). A rack 12 is provided at the tip of the guide member 2 and extends in the direction perpendicular to the plane of the paper in FIG. 2, similar to the guide rτb (22).

The upper part of the movable member 7 is a support arm 13 extending from above the guide part @2 toward the slide seal guide plate 4, and a reversible rotary motor 14 is provided at the base of the support arm 13.
is attached to the tip of the support arm 13, and a motor 5 is attached to the tip of the support arm 13. A gear 16 is continuously connected to the output shaft of the reversible motor 4, and this gear 16i meshes with the rack I2. When the motor I4 operates and the gearwork 6 rotates, the movable member 7 moves linearly by an amount corresponding to the rotation angle of the gear 16.

The wiper motor 15 has a well-known crank mechanism built into a gear box 15a, and its output shaft 15b performs reciprocating angular motion. Output shaft 15b of wiper motor 15
A rotary arm 18 to which a debris removing member 17 is fixed is attached to the rotary arm 18. When the output shaft of the wiper motor 15 makes a reciprocating angular movement as described above, the rotating arm 18 and the debris removing member 17 make a reciprocating angular movement between the guide member 2 and the tightening member 3 as shown in FIG. The waste removal section IJi7 has a frame I9 having a concave cross section and a suitable length, and a silide sole 21 fixed within the frame I9 and protruding downward from the frame 19.

As shown in FIG. 3, frame 1 of the slide knoll 21
The lower projecting portion 9j has two legs 22, 23'5 which diverge outwardly from each other; Hollow between the legs 24
The force is being formed. The silide sole 21 may be formed by integrally molding the structure itself, or by overlapping one side member 21a or 2+b having one leg 22 or 23 as shown in the figure. In the illustrated state, the lower end of the slide sole 21, that is, the tips of the legs 22 and 23 are in contact with the surface of the slide cool guide plate 4. Note that reference numeral 30 is a roller for maintaining an appropriate distance between the support arm 13 and the slide cool guide plate 4.

In FIG. 1, the reversible rotary motor 14 is connected to the main drive control circuit 2.
5 vc? It works even though it's still H. This active control circuit 25VC receives signals from two microswitches 26 and 27 attached to the side surface of the movable part 7. The actuator of the microswitch 26 can make contact with the stopper 28vc, and in such a case where the actuator makes contact with the stopper 28vc, the actuator of the microswitch 26 can make contact with the stopper 28vc.
No. sb will be issued. The actuator of the other microswitch 27 comes into contact with the stroke lever 29, and the microswitch 27 outputs a stop signal SO or a normal rotation signal Sf for this mixture.

On the other hand, wiper motor 15d auxiliary movement control direction 31 K+l
It operates under i-control.

The operation of the above-mentioned +1 ft embodiment will be explained below.

F1.Fixed to the magnetic chuck L by a flat surface ω1 cutting machine vC (not shown). While the workpiece is being ground, the movable part 7 is in the position shown in FIG.
11' where the actuator 7 comes into contact with the stopper 29
1'' (hereinafter referred to as standby position) VCI: /jf, is removed. In this standby state, the slide knoll 2 of the waste removal member I7
1 (Fig. 2) shows the slide sole guide plate 4 as described above.
come into contact with.

” 2 Mei 0 [When the previous work is finished and the debris on the chuck l generated by the grinding work is removed, a start signal Sin is sent to the main movement control circuit 25 and the auxiliary movement control circuit 31) t
X The reversible rotary motor 14 begins normal rotation, and the rotary motor 15 begins reciprocating angular movement. The forward rotation of the reversible motor 14 causes the movable member 7 to move forward (in the incoming direction) due to the engagement between the gear 16 and the rack 12 . Due to the forward movement of the movable part 7,
Debris removal section) 7 is the output shaft 1 of the motor 15
5b (Fig. 2), scan the surface machining a of the chuck l, and from this f'Lt/iT slide seal 21 in the longitudinal direction fi and in the 'l'ij direction W. Clean from.

When the actuator of the microswitch 2G of the reciprocating town moving part 7 comes into contact with the stopper 28K, an inversion signal sb is sent to the main drive fli control circuit 25, which causes iif
The reverse motor 14 reaches the point where it reverses, and the movable part 7 moves back (A).
'direction). During operation of the movable member 7, /lr removal member 1
7) The reciprocating angular movement continues, so the cleaning of the chuck continues.

When the movable member 7 returns to the standby position, it either stops rotating in the normal direction or moves forward again, and when it moves forward by 11'+ degrees, a second cycle of cleaning work is performed. talent].

Ru. In this way, the repeated cleaning IF operations continue until the stop signal Sfi is sent to each of the main drive and sub drive control circuits 25 and 31 and reaches 71 degrees. The number of times the cleaning operation is repeated can be set in any manner by adjusting the timing of the stop signal Sfi using an automatic counter or the like.

As described above, in this embodiment, both the main drive and the sub drive 11i
11 Start signal Sir+jc to G1 circuits 25 and 31
Therefore, the cleaning work begins 7'1. , stop signal 4-7Sf
The work is completed by i, but 111 as shown in γ1 can be made by key operation by the operator (or if the surface grinder is an automatic control type), it controls the operation of the grinder.・It may be sent from the central controller to be controlled.Commands VC and J from the central controller of the surface grinder to the movable member 71: I-+I+
((If this is the case, the cleaning work of the chuck 1 can be incorporated into the VC during a series of automatic grinding operations of the surface grinder, and complete automation of the grinding operation can be achieved.

According to this embodiment, the chuck can be opened with a single key operation by the operator or as part of an automatic grinding process.
rr'l'ij>f4 The work performed is extremely simple compared to traditional manual work. Further, unlike manual cleaning, cleaning does not occur, and the cleaning work can be carried out in a short time and reliably.

FIG. 4 shows a modification of the movable member 7 (FIGS. 1 and 2) in the above embodiment. Hereinafter, parts AA'vc that are the same as those shown in FIGS. 1 to 3 will be given the same reference numerals and will be explained. In addition, this figure shows the arrow view in Figure 1.
1, which corresponds to the side view according to Figure V (in '
+iJ' The movable part control 37 equipped with the reverse motor 14 runs along the guide member 32 disposed on the front side of the magnetic chuck (hand 0uIII in the figure) as indicated by the mark BB'. The running part of the movable member 37 is connected to the reversible motor 1.
4, the gear 16 and guide portion 4J' 3 driven by
The meshing of V with the rack 12 provided at the tip of 2 and the resulting reduction are similar to the embodiments shown in FIGS. 1 to 3;

The meshing between the gear I6 and the rack 12 is shown in full detail.
As shown in the figure, the gear 16 that meshes with the rack 12 of the guide part 1A32, the output 11Ql+ 1 of the motor 14
．． 4a (C connected, 1qi1 receiver extending from the side plate 33: 1
fixed on the drive shaft 35 supported by 4t/C,
ing.

Figure 6 shows the connection between the movable part (37 and guide part) lA32.
All 14+'i states are shown. As shown in the figure, a fixed roller 3 is attached to the upper shaft 36 protruding from the 1111 plate: 3.
8, 38' (See Fig. 4 for 38') The movable arms 41, 41' rotate around the lower shafts 39, 39' which also protrude from the side plate 33. Possible curses are always placed in a fixed position.
CIA. Movable rollers 43, 43' are rotatably attached to shafts 42, 42' provided at the lower ends of the movable arms 41, 41'. In this way, fixed rollers 38, 38' and movable rollers 43, 4. The movable member 37 is held on top of the guide member 32 by sandwiching the guide post 32 between the ends of the guide member 32 and the guide member 32 [?
The movable member 37 can be moved in six directions. In this case, if the movable arms 41, 41'i are rotated around the lower shafts 39, 39', the fixed rollers 38, 38', ! : The interval for sandwiching the guide post phase 32 between the town moving rollers 43, 43' can be changed, and therefore the guide post phase 32 and both rollers 38, 43 and 38', 4
The clearance with 3' can be adjusted freely.

In particular, the arrangement of the tension spring 3f between the movable rollers 43 and 43 can automatically adjust the clearance. Fig. 7 shows a second embodiment of the cleaner according to the present invention. Fig. 1 -In the first embodiment shown in Fig. 3-
: The support arm 13 and therefore the debris removal unit (A17) were designed to automatically travel all the way over the chuck l, but this second
In the embodiment, the debris removing member 17 is moved manually. It is effective for small and simple surface grinders.

In the same figure, +'+ii of the magnetic chuck
+++i (lower side in the figure) and back (upper side in the figure) VC
A guide rail 52 is attached to the chuck I, and these guide rails extend further to the right than the chuck I. A guide plate 44 is fixed on a portion of the guide rail 52 extending outward from the chuck 1 with screws 45V. A traveling body 46 is disposed above the guide plate 44, and a hanging shaft 47 is provided on a square of the traveling body 46. As shown in FIG. 8, a pulley 48 is rotatably mounted below +111147.
There are many. The pulley 48 is in VC engagement with a protrusion 52a having a triangular cross section of the guide rail 52, so that the traveling body 46 is held on the guide rail 52 by this mechanism and can travel by relying on the guide rail 52. becomes. A wiper motor 15 is fixed to the upper surface of the traveling body 46 f'L,
A rotating arm 18 is attached to the output pin 115b, and the tip of the rotating arm 18 is formed as a frame 19.111!l VC of the frame work 9 is shown in Fig. 3. It contains the same slide rail 21 as explained above,
The lower end of the slide rail 21 is in contact with the surface of the guide plate 44 in the illustrated state.

A micro switch 4 is installed in the power supply path of the wiper motor 15.
9 is in the box. This microswitch 49 interrupts the power supply path in a normal state, and connects the power supply path when the actuator 51 is pushed in (ON state). One end 53a of a lever 53 is placed below the microswitch 49. The lever 53 has a support shaft 54VC protruding from the traveling body 46 at a position slightly closer to one end 53a than the center thereof.
It is pivoted, and one end 53a above the father and the opposite end +1111
A grip 55 is provided at the end of the handle. Move the grip 55 up and down as shown by arrow C to support the lever 53 111b 54
It rotates around the fulcrum by vc. When the lever 53 rotates counterclockwise (when the lever 53 is pushed down), the actuator 51 of the one end 53a Id microswitch 49 is pushed.

One end 53a of the lever 53 has the function of pushing the vertical lever 51f as described above, but at the same time, it also lifts up the stop pin 5G. Stop pin 56
The lower end 56a of the guide plate 4 is formed as an inverted cone with the lower part cut off.
It can be fitted into the stop hole 57 provided with 4Vc.

The figure shows a state in which they are just fitted, and in this state, the traveling body 46 cannot travel. Note that since a compression spring 58 is generally placed between the conical portion 56a and the lower surface of the traveling body 46, the stop bin 56 is normally pressed downward.

The second embodiment having the above configuration operates as follows. Grinding work is performed on the chuck l.1. While the traveling body 46 is in the illustrated position (waiting position ii''+,') VC
ii'i or 几. When the grinding work is finished and all the grinding debris on the chuck l is removed, first press the grip 55. Then, one end 53a of the lever rotates upward,
Micro switch 49 is turned on, and at the same time the stong bin 5 is turned on.
The inverted conical part 56a of No. 6 is 1t outside of the stop hole 57.

When the micro switch 49 turns on, the wiper motor 15
starts operating, and the 10 moving arm J8 therefore slide 7-ru 2I
makes a saving-returning motion as shown by the arrow. stop bin 56
When it disengages from the stop hole 57, the traveling body 46 can move freely, so by moving the arm that is pushing down the grip 55 in the left and right direction in FIG.
6 moves along the guide rail 52Tl/C. Due to the movement of the traveling body 46, the slide sole 21 is moved by the chuck l.
Clean the top in both the width direction W and the longitudinal direction.

? Jr., Figures 9 and 10 show a third embodiment of the invention. In these figures, reference numeral 59 denotes a grindstone, and a grindstone 61 for grinding a workpiece (not shown) fixed to the magnetic chuck 1 is stored inside the grindstone. There is. The grindstone 61 is driven by a main shaft disposed within a main shaft head 62 and rotates in a clockwise direction in FIG. During grinding, the chuck l is brought to a predetermined position below the grindstone 61, and the grinding work is performed fL.

As shown in FIG. 9, one plate of an L-shaped bracket 63 is fixed to the back surface of the grindstone cover 59, and the other branch extends in the i′+iJ direction of the grindstone cover 59. A bush 64 and a lifting motor bracket 65 are formed at the tip of the other branch extending forward. The bushing 64 has an outer shaft 6 with a rank 66 as shown in FIG.
7 is arranged to be movable in the axial direction, and a bracket 68 to which the wiper motor 15 is fixed downward is attached to the upper end of the outer ffQh67. Inside the outer shaft 67, an IQl+72 is disposed, which is rotatably supported by bearings 69 and 71 with respect to the outer shaft 67vC.

The upper end of the inner shaft 72 is connected to the output shaft of the wiper motor 15 by a joint node 73 K , 1 inside the wiper motor bracket 68 .

The lifting motor 74 is attached to the lifting motor bracket 6sicki as shown in FIG.
The output shaft [is taken by a pin 4 onion 75 that meshes with the aforementioned rank 66].

With the above configuration, when the lifting motor 74 is operated and the pinion 75 is rotated, the rack 66 is lowered, and the outer shaft 67 is raised and lowered in accordance with the height fL. When the outer shaft 67 is raised and lowered, the wiper motor 5 and the inner shaft 72 are also raised and lowered. Father, the inner side 172 rotates the reciprocating angle by a predetermined angle when the wiper motor 5 operates J army - 1vJ
ft: Do.

No. 101 No. 1: Lower end of the V-shaped inner shaft 72 phantom 1,
Chuck 1 and 1・σpη゛1'-rIVL: The extending rotation is fixed nl, its 1ffI! The γ1. Gukobin 77t (Tai, from frame 19) Nino J Hego Volcano-r J (V, I・] Kai 78
Or (1〈arrived?1-is there).

Take A] ↓1.78 frame 19 vc 2'-J to take A'
l' fjf i1'i: 1';i: , overlapping and positioning of frame 19, 1: Rimo is behind (right side in the figure),
Therefore, 111+72 of them are 2y1, part 1. Is the rotating arm 18 one point according to ? j'I win〉J, with the standby device 1, when K rises to 2, the frame is l! l: I4, anti-11x in the diagram
J1. i'l Rotates in the force direction, and the right end is the rotating arm x8vc/
4 One/C state and stop.

At the end of the rotating arm 18 -71ij, there is a micro switch 79 that connects the wiper motor 5 and an electric V connection r Position (single point chain) IrL phycroswitch 79 at fc Toki O
actuator 7911, frame 19, and 1-1. In the frame 19, the slide sole 2I is attached in the same manner as in the case of each implementation 1. I'm here. When the inner 11qlI72 and therefore the rotary arm I8 are lowered and the slide seal 21 is brought into contact with the surface of the chuck I, the frame 19 is in a horizontal position as shown by the solid line, and in this state, the seven microswitches are activated by the actuator described in d. 79a f Push. In addition, the hands of the bushing 64 and the bracket 65 for the par-down moke ('+IJ (full
(The microphone I'1 switch 81, which is electrically connected to the microswitch 8N, is an example. (1) When shipped with the punching position adjusted, the rotating arm 1
Push it in with the overhang part 8 (ISA) once.

In the cleaner according to the third embodiment having the above configuration, the debris removing section paulownia 17 consisting of the frame 19 and the slide knoll 21 is configured to perform VCr;, t, <! during the grinding operation. i position +;'
; < Place it on the dashed line). In this state, the lowering motor 74 and the wiper motor L5 are always stopped. After the grinding work is finished, the operator gives a (+'”F)
No. 43 at the beginning of 1fν or control the operation of the entire grinding machine]
A cleaning command signal is issued from the central control unit that is not shown!
' Then, the lifting motor 74 operates and the outer shaft 67 and the inner shaft are moved.
iil+72 falls.

The rotating arm 18 is lowered by the lowering of the inner 11ul+72,
As a result, when the /fl removal member F reaches the solid line 7Q surface state, the micro switch 79 is turned on and the lifting motor 74
stops, and the wiper motor 15 starts operating. When the wiper motor 15 operates, the inner shaft 72 reciprocates and rotates by a predetermined angle, and the rotating arm 18 reciprocates between the stop position (E) and the conversion position CF in FIG. move angularly. Note that the rotating arm 8 remains stationary at the E position when going up and down.

While the debris removal layer 17 attached to the surface of the chuck 1 makes reciprocating angular movements as described above, the chuck (2) makes a reciprocating movement in the GG' direction in the figure, which is a 1υ1 movement unique to a surface grinder.

Due to the synergistic effect of the reciprocating movement of the chuck itself and the reciprocating angular movement of the debris removal section 4j17, the top of the chuck l can be reliably cleaned, as in the first or second embodiment.

When the cleaning work is finished, the debris removing member F returns to the stop position E, the lifting motor 74 is activated again, and the debris removing member 17 is raised. The rotating arm 18 that rises together with the debris removing member 17 rises from the standby position 1, and its protruding portion 18+1 pushes the actuator of the microswitch 81 I-1.Then, the lifting motor 74 stops and the debris removing member 17171: Held at the rocky position.

In the above explanation, when the microsin chias 9 and 81 are used, the contacts can be turned on and off by pressing the actuator.
Although all mechanical sensors for F are used, a non-contact distance detection sensor equipped with a light-emitting element and a light-receiving element may be used instead.

Further, in the above three embodiments, the debris removing member 17 is connected to a predetermined shaft (motor +Il+ 151 of the first embodiment),
Motor shaft 15a of the second embodiment X 181 of the third embodiment
? 2) I gave an example of reciprocating angular movement around fl.
'? It is also possible to adopt a configuration in which the removal part moves simply around each axis of the removal member 7.

As described above with reference to the three embodiments, according to the present invention, the part 1' of the chuck (1) [the support that is relatively movable in parallel with the object fixing surface], A) Support 11II on J (support arm 13, traveling body 46, platen l-63)
(Maulcle 1t + 1sb, inner shaft 72) was provided, and a rotary movement such as a reciprocating angular movement or a simple rotational movement shield was made possible around the l111+ of the Tokai et al. VC, Grinding debris on the chuck can now be removed reliably and easily for the operator.

[Brief explanation of drawings]

FIG. 1 is a plan view of the first embodiment of the present invention, FIG. 2 is a side sectional view of the first embodiment, FIG. 3 is a sectional view showing the waste removal layer 17, and FIG. 4 is the first embodiment. FIG. 5 is a cross-sectional view taken along the line ■-V in FIG. 4, FIG. 6 is a cross-sectional view taken along the line Vl-■1 in FIG. 4, 7th
8 is a side sectional view of the second embodiment, FIG. 9 is a plan view of the third embodiment of the invention, and FIG. 10 is the third embodiment of the present invention. FIG. 3 is a front view of the embodiment. ■...Magnetic chuck (chuck) 13.46.
63...Supporting member 151+,? 2...S1 Haku17...Written Scrap Removal Component Procedure Amendment June 1982 1
055 No. 2 Name of the invention Chuck automatic cleaner 3 Person making the amendment/Relationship with lCf1 Patent Applicant Asa (Residence γ Name) 91 Female Sadao No 4 Agent f King Location Tokyo Tech; [Nishi, Miyako Minato Ward Shinbashi 2-chome +; 132-4 Kaji Kogyo Building Sho 2u ++;
Month day shipping f-■ Showa ;+<
Date 6 Contents of amendment to drawing 7 of the Shinsei Replace Figures 4, 5, and 10 with the attached drawings. ■ Display of the case Patent Application No. 74055 of 1982 2 Title of the invention Chuck automatic cleaner 3 Person making the amendment Relationship to the case Patent applicant name Sadao Yabuno 4 Agent address 2-32 Nishi-Shinbashi, Minato-ku, Tokyo No.4 Showa year
Detailed explanation of the invention in the specification subject to the 6th amendment 9 and 10), if a block of appropriate thickness is placed on the chuck 1,
When the debris removing member 17 comes into contact with the upper surface of the block, the microswitch 79 is turned on, and thereby the debris removing member 17 cleans the upper surface of the block. That is, the debris removing member 17 can clean not only the surface of the chuck 1 but also the surface of a block of any height. Regarding the first or second embodiment, if a mechanism for raising and lowering the debris removing member 17 is separately provided on the support arm 13 (FIG. 1), the traveling body 46 (FIG. 7), etc., different heights can be achieved. can clean the surface of objects. ” to join.

Claims (1)

[Claims] An automatic chuck cleaner for a surface grinder that grinds the surface of a workpiece fixed on a chuck includes a support member that is movable in parallel relative to the workpiece fixing surface of the chuck, and a support member that fixes the workpiece on the chuck. An automatic chunk cleaner characterized in that it has a surface and a debris removal part that is rotatable around a shaft provided on the support member while being in contact with the support member.