SU1391858A1 - Method of producing blocks of articles - Google Patents

Description

(21) 4147554 / 25-27

(22) 11/17/86

(46) 04/30/88, Bull. № 16 (72) V.G.Subbotin

(53) 658.515 (088.8)

(56) Copyright certificate. USSR № 1228945, cl. At 21 D 37/00, 1984.

(54) METHOD OF MANUFACTURING BLOOD TAPE BLOCKS

(57) The invention relates to a mechanical assembly production, in particular to the manufacture of measuring instrument assemblies. The goal is to expand technological capabilities by providing an assembly of the coordinate carriage. The carriage consists of boards 1 and 2 connected by elastic rods 3. Between boards 1 and 2, a techno

logical support (TO), consisting of three elements. The dimensions of the carriage are formed and the plates 1 and 2 are fixed on the central maintenance element by means of screws installed in the technological holes 4. The holes 11 are machined by drilling them in one pass through the side maintenance elements, the boards 1 and 2 are removed from the maintenance, and the rods 3 are pre-installed in one of the boards. Between plate 1 and 2 a central maintenance element is installed and the rods 3 are pressed into the holes 11. The boards 1 and 2 are brought closer to the stop in the central maintenance element, after which the latter is removed. This allows high precision coordinate carriages to be assembled. 3 il.

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i The invention relates to a mechanic ((|: boron production, namely, k) manufacturing of measuring instrument assemblies.

The purpose of the invention is the expansion of technological capabilities by providing an assembly of a coordinate carriage consisting of two boards with connecting rods.

Figure 1 shows the coordinate carriage, a general view; Fig. 2 shows a technological support, an objekt view; Fig. 3 drilling pattern.

The coordinate carriage consists of a fixed 1 and an undersized 2 board and elastic rods 3. Boards 1 and 2 have technological holes 4 for fixing the technological support consisting of a central element 5 and side elements 6 and 7. The dimensions A, B and C of the carriage are limited by tolerances on the size and tolerances on the location and shape. The central element 5 of the technological support has a thrust bead 8 and a technological opening 9 for securing the boards 1 and 2. The central element 5 has dimensions L and B for the carriage. The side elements 6 and 7 together with the central one form the size C of the carriage. The central element 5 has the exact dimensions l and c

exact sizes from dl

side elements have a provision

size With carriage. The side elements 6 and 7 are fastened to the central 5 with screws 10. The size A of the lateral elements can be underestimated relative to the central one by 0.1-0.2 mm.

The method of manufacturing the coordinate carriage is carried out as follows.

The fixed 1 and movable 2 boards and elastic rods 3 are processed for final dimensions with technological holes 4. The technological support is assembled from elements 5.6 and 7 and plates 1 and 2 are mounted on it. By pressing boards 1 and 2 to the corresponding surfaces of elements 5 6 and 7 and the final dimensions of the carriage form the flange 8, after which the plates 1 and 2 are fixed on the support with screws. For the given coordinates X and Y, the holes 11 for the rods 3 are machined in one pass in both the boards 1 and 2 and the lateral elements 6.7 of the support. In this case, the deviations of the axes of the holes 1 from parallelism may be

c, and oi. Cards 1 and 2 and technological support are exposed. Pre-installed in one of the boards elastic rods 3, install the central element 5 of the support between the boards 1 and 2 and press the rods 3 into the boards 1 and 2 until they stop in the central element 5 of the support, after which

remove the element 5 supports. The deviation of the axes of the holes 11 from parallelism does not cause elastic deformation of the rods 3 when they are pressed into the hole 11, and this does not cause a deviation

sizes A, B, C and parallelism of boards 1 and 2 relative to each other.

The central support element 5 is used for a long time, since there is practically no wear on the working surfaces. The side elements 6 and 7 are used multiple times: they are mixed in a groove 12 relative to the central element 5 and the next pair of holes 11 are made in them.

Example. A coordinate carriage was made with dimensions A 45 -0, 03, B 60 - 0.05, C 60 -0, 03, X 35 and U AO.

thirty

35

40

50

55

45.

The tolerance of parallelism and perpendicularity of the working surfaces of the assembled device is 0.002-0.005 mm. Boards 1 and 2 are made of steel 38ХА with hardness of 32-36 HRCj, elastic rods 3 with a diameter of 2-3 mm - of steel 51ХВА with hardness of 41.5 - 46.5 НКСэ, side elements - of steel 45 with hardness of 32-36,5 HRCg , the central element is made of steel X with a hardness of 56 - 61 HRCg. The side elements 6 and 7 are fastened with screws MB, the boards 1 and 2 on support 5 are fastened with screws M8-E10. The coordinate carriage is assembled according to the previously mentioned techniques.

Claims (1)

Invention Formula A method of manufacturing blocks of parts consisting of two prismatic parts interconnected by core elements, consisting in joint processing of holes in the prismatic parts under the core elements, diluting the prismatic parts, installing the core elements in the apertures of the prismatic parts, shaping the dimensions of the block and with the fact that, in order to expand technological before joint processing of the holes between the prismatic parts, place a technological support consisting of three elements and form the dimensions of the block with fixation in this position, after processing the holes J-sl Phage. 2 The lateral elements of the technological support, and the installation of the rod elements is carried out with the placement between the prismatic parts of the central element of the techno (; otic support against the stop of the prismatic parts into the latter, after which it is removed. W