JPS59219144A - Apparatus for bevelling prism - Google Patents

Abstract

PURPOSE:To improve remarkably the efficiency of bevelling operation by providing a constitution for efficiently bevelling ridgelines and corner portions of prisims used for cameras or the like. CONSTITUTION:When a plurality of prisms as works W are supplied to a supply section prior to bevelling working, a robot 3a in a working section 3 moves onto the work W in the supply section 1 and grips the work W to supply it to a clamp section 3b11 in a work fixing section 3b1 of a grinding unit 3b after checking the position of the work in a position check section. And both corner portions of the work W are simultaneously roughly groun. Also, while the work W is gripped by the robot 5a, it is supplied to a grinding location section 5b1. The work W is inserted into a V-shaped groove on a grinding bed from the ridgeline portion side to project the ridgeline from a slot so that the ridgeline is ground by a grinding wheel section 5b5. Thus, the efficiency of the operation can be efficiently improved.

Description

[Detailed description of the invention]

The present invention relates to a prism chamfering device i'lζ for chamfering prisms used in cameras and the like. As is well known, a prism is used in the pointing optical system of a single-lens reflex camera, and one example of this type of prism is shown in FIG. That is, this thing has a vertical surface A with a stepped portion formed on the side edge of the corner 1 of the rectangular bottom surface T, and a central portion is formed outward on the second side edge opposite to this vertical surface A. Protruding bend iB1. It has lJ2. Further, the third and fourth side edges have a vertical plane C+, I)t and the order C2, 1)2 which intersect with each other at an angle of 90°.
There are some things that have this. Incidentally, in such a prism, chips are likely to occur at the corners where the ridge lines along ζ between the surfaces meet, and these chips may have an adverse effect on the movement inside the prism. Therefore, in the past, 1Jtl cracking was applied to the ridges and corners that affect the optical path to prevent them from chipping in 1 minute. In the prism shown, between A and 02.(ii, j of A and C1 side
and the corner A11. of each Ryo1 gland between CI+Fueyoshi C21hf. Similarly (f4 section A12, where the ridge line between Koiri surface and B2 surface, between surface 4 and D I +M, and between D*, tf$ and B2 surface, respectively. Ridgeline A21.And the ridgeline A between the 4th side and 1) 2nd side
In addition to chamfering each of 22, the corners between the t32 and 02 surfaces, between 81 and CI, and the ridge line between ?1 and 02 and the bends of 81° and 132. B11.
Similarly, between the 82 plane and the B2 plane, between the Bi plane and the B1 plane, 1a
2. For the corner where the corner line of the 1st river of the 1st and 02th planes and the 1st bend of the 81,132th plane gathers. 2. The ridge line between the 132nd plane and the 02th plane t321. Between the 82nd plane and D 2 + m ridge line 1322
．． Ridge line B31 between B1 side and 01 plane. B1 side and B1
The ridge lines B32 between the faces are chamfered. However, conventionally, a chamfering device has been used to ensure such prism chamfering. However, in the methods used so far, the prism remains fixed and the grinding wheel is moved in accordance with the cutting direction of the corners and ridges to be ground.
Finishing the chamfering of each prism (it takes a lot of effort and has the drawback that the work stoppage rate is significantly lower. This invention was made in view of the above circumstances. An object of the present invention is to provide a prism chamfering device that can efficiently perform chamfering and improve work efficiency.Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Figure 2 shows the equipment used for chamfering the prism described in Figure 1. In the figure, 1 is a supply section to which the prism is supplied, and this supply section 1 contains the prism before chamfering. A plurality of prisms are supplied as workpieces W. A device main body 2 is provided adjacent to the supply section 1. This book I*2 includes four corners A of the prism shown in FIG.
Processing section 3 for grinding ll, A12. Part B1 between the 6th side in the same figure
1. Machining section 4° for grinding B12 and ridgelines B31, 832, ridgeline A21 on surface A in the same figure. A22. 8 ridge lines 82
1. It has a machining jτ65 that performs t (grinding 22 1) IJ. In this 2 @ combination, the machining section 3 on the edge has a robot: 33 that receives the workpiece W 7 times and also has the 1st j!!! 1A
It has a grinding unit 3b for grinding the corners All and A12, and a grinding unit 1-3C for finishing the corners All and A12. Here, a-
Reference numeral 38 has a bendable arm and a chuck at the tip of the arm for gripping a workpiece. The grinding unit 3b also includes a pair of clamp parts 3b11. for fixing the workpiece W. , 3b12; 3b1 and the grindstone part for 3b2; 3b2;
Similarly, the grinding unit 3C has a pair of clamp parts 3C11:(C12) for fixing the workpiece W. 4 to 6 workpiece fixing parts 3
C1 and a finishing grinding wheel portion 3c2. In addition, the processing section 4 of the ear 2 is connected to a robot that transfers the workpiece W.
-43 and the corner 1 (11, B
12 woItJNilJ '#-ru0jfl'1l-L
2y l” 4 b, same 2B]■i ridgeline 1331,
The grinding unit 4C that grinds 832 is in the 'H' state. Here, the robot 4a is the same as the robot 3a described above. Also, does the grinding unit 4b fix the workpiece W? 1- L'lJL power club for the end part 4bll,
The grinding unit 4c also has a pair of clamp parts 4cll and 4c for fixing the workpiece W.
12 and a grindstone section 4C2. The processing section 5 of the barley has a robot 5a that receives the work ~■ once, and -k''< 11AIJ
Edge lines 1321 and 1122 of the plane and ridge line A2 of plane A in the same figure
1. It has a grinding unit) 5b for grinding A22, respectively. Here, the robot 5a is also the same as the above-mentioned robot 3a, and has a grindstone portion 5b5 as well as 5bl, 5b2.5b3.5b4. Here, the processing sections 3, 4.5 are specifically constructed as follows. First, the machining section 3 in which the corners A11 and A12 of FIG. Diagram (C11 is work holding member C1 This holding member 1
1 is a 21-piece workpiece W, and the prism shown in Figure 81 is the same as 1t, j (these two groups are 3T (4), and the J and 11 sides that receive the A side of the same prism, and the T side. [November f4 to catch] A hard 112Jj and Cz, clamp r formed with V-shaped groove 113a to catch D2 surface: B 1
13.113 is on. Then, the holding member 12.12 that presses the 8 surfaces against such 1 holding member 11 is moved forward and backward.
Figure + b) 1 wave 1□謹 (This shows 1 large 1 strong
It is strained so that it is clamped. At this point, the workpiece holding member 11 is g 4 i'J
lal fb) (provided on the plate 13 of the 1-position adjustment part shown in cl. The grindstone +y1531) 2 described later is placed in the optimum position 1.
position adjustment ri]' function ``C''.
In fb), reference numeral 14 is an adjustment unit main body, and this main body 14 has an upright part 141 as shown in fbl of the same figure, and a C moving table 15 is provided along this upright part 141 so as to be able to move upwardly. The above-mentioned plate 13 is provided. The main body 14 also has an adjustment section 168 for adjusting the horizontal position of the plate 13 and an upper adjustment section 17 for adjusting the vertical position. In this case, Figure 4 (I)
1, the adjustment part I6 adjusts the whole tree of the main body I4 in the left-right direction I.
This horizontal movement 1 and 9, [4・Marobe 15 is the moving table 1
5 in the vertical direction. This makes it possible to set the plate 13 on the grindstone portion 3b2 at an optimal position. In Figure 1, 161° and 171 are levers for locking the position IN rA i & . In addition, as shown in Figure 4, bearings 18, 18 are protruded from the plate 13 at a predetermined interval, and the 1III body 19 is movably supported in the horizontal direction by the bearings 18, 18. A holding member 12.12 of the waterwork work fixing part 3bl is provided on the support stand 20 at 19, and the workpiece W held by the workpiece holding member 11 is clamped aH. On the other hand, the grinding wheel part 3b2 of the grinding unit 1-3b of the processing section 3 is polished as shown in FIG. The main bodies 23 are arranged in parallel.In this case, the motor 22
The driving force is transmitted to the grindstone body 23 via the belt 24. Further, the grindstone main body 23 faces a pair of grindstone pieces 231 and 232 arranged in parallel at a predetermined interval. 25 is a bearing 26 at both ends, and 26 is a supported shaft body. This front body 25 has a threaded portion on the circumference. Then, the base 21 is attached to the threaded part of the shaft 25 via a moving body 27 having a nut part, and the base 21 is configured to be movable in the horizontal direction by rotation of the shaft 25. . In this case, a pulley 251 fL is connected to the shaft body 25, and a servo motor (both shown in the figure) is connected via a timing belt.
The movement of the base 21 is sub+i! I try to do it II. As a result, the grindstone main body 23 becomes movable over a predetermined distance in the horizontal direction together with the base 21, and is moved relative to the workpiece W clamped by the clamp portion as shown in FIG. Note that 1, 1: There is an M release 28 around the grindstone pieces 231 and 232, and the shavings such as insect removal from grinding the workpiece are discharged through a duct 29. Next, processing 11 (the grinding unit t-3c of 3 is the workpiece fixing part 3cl and the grinding wheel part 3C2)
Since it is exactly the same as , the explanation here will be omitted. Next, the machining section 4 is the one-knock fixing section 4b of the grinding unit 4b.
l as shown in the 4fJG diagram fat tbl. In the figure, 30 is a workpiece holding member, and this holding member 30
is capable of holding two workpieces W, that is, two prisms shown in Fig. 1 at the same time, and has a \1 shape (n part 30
Intermediate wall 302 forming 2a and 811JJi G receiver +J-. It has a clamping part 303 for holding. The holding member 31, which presses the 'r surface against the holding member 30, is configured to be able to move forward and backward, so that the work W is clamped in the state shown in FIG. The rest is exactly the same as the above-mentioned grinding unit 32.The explanation here will be omitted.The grinding unit 1-4C of the same processing section 4 is the workpiece fixing section 4.
cl as shown in Figure 7 (1a) lbl. In the figure, reference numeral 32 denotes a workpiece holding member, and this holding member 32 can hold two works W, that is, two prisms shown in FIG. 1 at the same time, and has a bottom surface 321. It has an intermediate wall 322 that receives the T surface and a clamping portion 323 that receives the B2 surface. Then, C1 for such a holding member 32, C2, J)2
The presser member 33 having the V-shaped groove 33a that extends the surface (l'II) is moved forward and backward.

[The workpiece W is clamped. The rest is exactly the same as the ujF cutting unit 32 of l: and J water, so a detailed explanation will be omitted here. Next, the machining section 5 of the J-type trowel is the grinding unit 1-5b as shown in FIG.
a) As shown in tbl. In the figure, 34
The unit main body C1 has a grinding table 35 in this main body 34. As shown in FIG. 9(al), this grinding table 35 has positioning parts 5bl, 5b2. A V-shaped groove 361 is formed in the radial direction of the surface of the conical base 36, and a notch, e.g., a long hole 362, is formed along the bottom of the groove 361, and the workpiece W is inserted into the groove. 361, the ridge line to be corrected protrudes from the long hole 362.Furthermore, the base body 36 has a plurality of long holes 363 for mounting along the periphery, and the mounting angle of the base body 36 is adjusted. Of course, the other positioning parts 5b2 to 5b4 are also provided with one position per child as described above.In addition, 351 is →
Handle for transporting to the temple: (52 is the screw for attaching the 1st case. Also, return to ・aE 8 +Q) and attach the door 1 of the above-mentioned grinding leaf 35.
It has a grinding wheel part 51) 5 opposite to the grinding wheel part 51). This J(
Stone: 'H55b5 is provided with a grindstone main body 38 and a motor 39, and the five-axis force of the motor 39 is transmitted to the C grindstone main body 38 via a belt 40. This 4 piece whetstone Fuki 38
The disk-shaped grindstone piece 381 is rolled, and the surface of this disk-shaped grindstone piece 381 is distributed on the grinding table 35 in a near-drop manner. There is a gap around the grindstone piece 381.
# Grinding of C-type workpiece with even 41 tlt
4E (i) (T,
5a. 5b, 6c are the origins of each robot 3a, 4a, 5a,
7a, 7b, 7c are the same robots 3a, 4a, 5a
The machining origin, 3a, 81), 8c is the workpiece W
9a, 9b, and 9a, 9b are the delivery parts for delivering the work W to the robots 111 of the robots 3a, 4a, and 5a. Here, the first receiving portions 9a and 9b are specifically the first receiving portions 9a and 9b.
() As shown in the figure, a workpiece W, that is, a prism 02. A support base 44 having a V-shaped groove 44a for receiving the D2 surface and B21a of the same prism
It has clamping members 451 and 452 that clamp between i and A, and the chuck 47 of the arm 46 holds the workpiece W in a state convenient for transfer, that is, in this case, with the 'r side facing upward. , 452 so that the work W can be chucked. Returning to FIG. 2 again, a workpiece cleaning section 9 is provided in contact with the apparatus main body 2 at 14. This cleaning section 9 uses ultrasonic waves or the like to clean the workpiece that has been completely ground. An unloading section 10 is provided adjacent to the cleaning section 9. This unloading section 10 is composed of a conveyor or the like, and allows pallets 101 for storing workpieces to be freely transported. Next, its effect will be explained. Now, in Fig. 2, a prism that fits on the surface J and has not yet been subjected to DI processing is supplied to the supply section L as a workpiece W. First, the robot 3a of the processing section 3 moves from the robot origin 6a to the processing origin 7a, and then the prism is supplied. The workpiece W is moved 41 times over one node W of the part 1, and after the posture is checked in the posture check section 8a, it is joined to the clamp section 31) 11 of the workpiece fixing section 3bl of the grinding unit 3b. In this case, as shown in FIG.
Figure 02. 1JZ is received and the presser member 12 moves forward to be clamped in the state shown by the broken line ζ. Then, in the state of A 17 A by the grindstone part 3b2
Corner parts All and A12 of uIr are rough cut at the same time. Here, in the grinding wheel part 3b2, the shaft body 25 is rotated via a timing belt by a servo motor (not shown) in FIG. Clamp part 3b11
The tips of the pair of grindstone pieces 231 and 232 are simultaneously brought into contact with the corners Al l and A12 of the entrance surface in Figure 1 of the workpiece W clamped by the clamp 91S 3bll. this? From this, both corners rill AI I and AI2 are simultaneously cut down. In addition, this (!: grinding) is discharged from the duct 29 communicating with the isolation chamber 28.Next, the workpiece of the grinding unit 3C is removed by the robot 3a. It is transferred to the clamping part 3C12 of the fixed pot part 3C1.In this case, the workpiece W is clamped in the same shape as explained in FIG. All corners of
, A12 is finished cut. At this time, grindstone part 3
The movement of C2 is the same as the above-mentioned grindstone part 3b explained using FIG.
Same as 2. First, the workpiece ν■ of the clamp section 3C12 is taken out by the robot 3a and supplied to the delivery section 9alC. Move over the workpiece W, grab the workpiece W, check the posture (rT81), and check the ゛C posture.
supply to. In this case, the workpiece νV is placed on the bottom surface 301 of the holding member 30 as shown in FIG.
, middle 43f) 2 r and the same figure 02 , J) 2 sides and!
The surface shown in FIG. 131 is received by the holding portion 303 and is clamped in the broken line shape shown in FIG. In this state, the first t:gE is
13 tM corner portion 13] 1, 1J12 are ground simultaneously. Note that the movement of the grindstone portion 4b2 at this time is the same as that of the above-mentioned grindstone portion 3b2 described in FIG. Next, the workpiece W in the clamping section 4b11 is transferred by the robot 4a to the clamping section 4C12 of the workpiece fixing section 4C1 of the grinding unit 1-4C. In this case, the workpiece νV is received by the two surfaces IJ in FIG. 4 and is clamped by the broken-line shaped cap in FIG. 7 by the forward motion of the holding member 33. In this state, the ridgeline 83 on surface B in FIG.
1,832 are ground simultaneously. Grindstone part 4C at this time
The movement of No. 2 is also explained using the above-mentioned grindstone portion 3b2 using FIG.
is the same as Thereafter, the workpiece W in the clamp section 4C12 is taken out 1lj7 by the robot 4a and supplied to the delivery section 9b. Next, the robot 5a of the processing section 5 moves from the robot origin 6C to the processing section A7C, and then the workpiece of the transfer section 9b.
After working 48 times in J-, the first workpiece W is grabbed and checked for superiority in the posture check section 8C, and then first supplied to the grinding positioning section 5bl of the grinding unit 51-+. This threat a
, the workpiece W is being ground while being held by the robot l-5a.
・It is supplied to the 9 deciding part 5bl. At this time, the work W is inserted into the disc-shaped V-shaped groove 361 of the old wood 36 of the grinding table 35 shown in Fig. 49 from the p2 line +321 side of the B side of Fig.
1 should stand out. In this state, the ridge line 1321 is sharpened by the grinding wheel 51) 5i. Here, in the grindstone section 505, a grindstone main body 38 is driven by a motor 39 via a belt 40 in FIG.
Grinding is performed by the contact. Next, (n 6 is determined and the workpiece W in the part 5bl is the robot 1-5
While being held by a, the adjacent positioning portion 5b2 adds one. Cono ji Combined W Ha Figure 1 Htilo) I&
The wire 1.32211111 is inserted so as to protrude from the elongated hole 362 of the base body 36. As a result, the ridge line B22 is ground by the grindstone portion 5b5. Next, the workpiece W in the positioning section 5b2 is moved to the adjacent positioning section 5b3 while being held by the robot 1-5a. In this case, the workpiece W is located along the ridge line A21 [ti!
I is inserted so that it protrudes from the elongated hole 362 of the base body 36. As a result, the edge + flj! A21 is ground. Then, at j01&, the workpiece W in the positioning section 5b3 is transferred to the positioning section 5b4 while being grabbed by the robot l-5a. In this case, the workpiece W is inserted so that the ridge line A22 on the surface A in FIG. As a result, the ridgeline A22 is ground by +dF at the grindstone portion 5b5. All grinding is now complete. Then, from the robot onwards, the next work W is also placed on the shelf.
．． 4.5 At the end of the process, 15 minutes of grinding is performed. This '4% & , θ0 engineering, 1σf l1l of 1$3
In J unit 3b, workpiece is opposite to water supply: d, QZ
Attach the workpiece V5 to the clamp part 3b12 of rlB 3bl.
．． (Jf f41J unit 3c also clamps the workpiece, , r, B 3cl clamp part 3cl
Clamp the workpiece W to the 11111 corners Al
l, A12 was ground by 1σF. In addition, in the machining, the work W is clamped at the clamping part 4C11i of the hard part 4C1, contrary to the above, in the 11D4 A υF cutting unit 4b, and the corner part IJII, 0 of FIG.
12 g and ridge line 1J31.32 ・I:11)Fil
Then, for the subsequent workpieces W, the grinding units 3b, 3c, 4b, 4c of the horn 11 engineering department 34 grind the respective workpieces 7, 3bl, 3C1, 4bl, 4.
The clamp parts of C1 are used alternately. Then, the workpiece W was polished with 11 teeth and 1b5.
After being contested by the cleaning section 9, the pallet 10 is
1 and then the pallet+-ioi'r stuffing is completed? l- and +V r are carried out to the outside at the part 10. Therefore, with such a configuration, if the prism side is moved, it is possible to fix the grinding wheel to the fixed part in a posture corresponding to the grindstone while grinding the grinding wheel. While holding it, move the whetstone side according to the sharpening method and grind + Q! ] It is possible to efficiently perform the machining of each grinding part (that is, the ridge of the prism) and the inside of the prism, significantly increasing the rlB rate of small work. In addition, the machining section is made independent for each prism II/F +lJ section, and the prism is transferred between these machining sections to the robot using -, so the flow of the entire process can be maintained smoothly. , it is also possible to improve the efficiency of the grinding process. It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be used as an actual gun by changing the m: ratio within the scope without changing the gist. For example, the Lie prism shown in FIG. 1 which is milled by njF is a 11-hole prism, and prisms having other shapes can also be used. In this case, each workpiece fixing part rO) is slightly changed. Further, the processing order of the above-mentioned processing sections 3.4.5 may be changed arbitrarily. In addition, in the above, 141 units of acid in the processing section 34 df) + 3c, 4b,
At the workpiece fixing part at 4c, a cedar piece with two clamp parts is set at 9I.
'''l, -<I・) Of course, it is also possible to use four.

[Brief explanation of the drawing]

FIG. 1 is an oblique view showing an example of a prism to be ground; FIG. 2 is a schematic diagram showing an embodiment of the present invention; -! @ 3 il 1al lbl is the same chastity 1
1 shows the workpiece fixing part used in 1, fal is a plan view, (
b) is a front view, FIG.
b) is a front view, (C1 is a side view of tal, Fig. 5 1al
6 (at tb) is the work fixing part used in the same example; tal is a plan view; (b) is the IE front view; ) is a front view;
(b) is a front view, FIG. 8 (at fbl shows the grinding unit used in the same example. (al is a plan view, (1)) is a front view, and FIG. 9 (a) lb
l indicates the grinding table used in the same grinding unit, fat is the plan view, tb) is the front view of the IE (see Fig. 13) (bl is the receiver used in the same example, and a) is the front view. ,
(bl is a side view. ■...Supply section 2...Device main body 3.4.
5...j 几工BU 3a, 4a, 5a...
・Robots 3b, 3c, 4b, 4c, 5b...
-Grinding unit 3bl, 3cl, 4bl, 4cl
...Work fixing part 3b2, 3C2, 4b2, 4c
2,5b5... Grinding wheel part 63-6C... Robot origin 7a-7C... J1f+-1 origin 8a-8C
...Position check section 9a, 9b ...Delivery section 9...Cleaning section 10...1 general delivery) 75
1O1...Pallet 11,30.32 ・
...Work 1 dumb samurai parts 111.30
1.321...j bottom surface 112, 302.322...
Intermediate wall 113.303.323 ... holding part 1
2.31, 33...Press member 13...Plate 14...Adjustment section body 141...Elevating section 15...Moving table 16.17-...Adjustment +
fB161, 171...Lock lever-18...'I
Qh Uke 19...11+1] body 20...
・Support stand ・21... Base 22... Motor 23... Grinding wheel body 231, 232...
・Whetstone piece 24... Bell (・ 25...
jllK26...bearing 27...moving body 28...14 leaving room 29...duct 3
4... Unit body 35... Grinding h36...
- Base body 361...Groove portion 362...Long hole 38...Wheelstone body 39...Motor 40...Belt 41...1. fSt゛Junihama 42...Duct 43...Shimagaya
44...Support stand 451.452...Front ζ holding member 46...Robot bowl 47...Chuck Fig. 1 (a) A11TA12

Claims (2)

[Claims] (1) A supply section to which the prism before removal processing is supplied; a robot section that rotates the prism; a fixing section that fixes the verism supplied by this robot in a predetermined posture; and a prism in this fixed state. A first processing section having a grindstone section for grinding a predetermined portion of the prism, and a robot section for delivering the prism. A positioning section that positions the prism supplied by this robot section in a predetermined posture and also positions the notch portion that protrudes from the grinding section;
A prism chamfering device comprising: a device main body having a second processing section having a grindstone section for cutting 4υ; and a means for transporting the prism that has been completely ground by the main body. (2) The prism chamfering device according to claim 1, wherein the first processing section is provided before the second processing section.