SU1326875A1 - Device for centering articles along axis - Google Patents

Abstract

The invention relates to measuring devices, in particular, devices for centering products axially when installed on metal-cutting machines. The invention makes it possible to increase the accuracy and convenience of centering products along the axis by eliminating the effect of error on the mating surfaces and manual rotation of the lever system. The device consists of a mandrel 1 with a support ring 3 at the end hinged on the ring 3 of the lever system. The device is mounted along the axis of the product 13 and a part of the device with a probe 12 is inserted into the opening of the product 13. When rotating the quill 2 together with the lever system, the radial movements of the probe 12 are transmitted through the lever system, the stop 9, the double-arm lever 15 to the rod 14, the base ring 17 and further the reference node 18. By the relative movement of the product 13 and the quill 2, the arrow is reached, the reference knot 18 does not change its position throughout the entire twist of the quill 2. 3 Il. (L 7J 18

Description

one

The invention relates to measuring devices, in particular, devices for centering products axially when installed on metal-cutting machines.

The purpose of the invention is to improve the accuracy and convenience of centering products along the axis by eliminating the influence of error on the mating surfaces and manual rotation of the lever system.

Fig. 1 shows the structure of the device for centering products along the axis; in FIG. 2 a section A-A in FIG. 1 | in FIG. 3, view B in FIG. “1.

The device consists of a mandrel installed by its shank in the quill (or spindle) 2 machines. At the end of the mandrel there is a support ring 3j on which the hinge is clamped30

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Lena lever system, made in the form of a hinged parallelogramj consisting of two long links 4 and 5, two short links 6 and 7, perpendicular axes of the mandrel 1, and spring 8, Link 7 is the basic element made in the form of a bar with a stop 9 extending inside the groove 10 of the mandrel I "On a short link 6, a holder I 1 is fixed to fasten the probe 12 in contact with the surface of the product 13. Coaxially with the mandrel, it has a movable rod 14, which interacts through the two shoulders lever 15 with an emphasis 9 of the base element 7. At the other end rod 14 is fixed via the bracket 16 the base ring 17 cooperating. with its end face with the reference node 18. The azovial ring 7 covers the mandrel 1 with a gap, the Reference node 18 is mounted on the flange of the sleeve 19 mounted on the mandrel with the possibility of turning, while the reference node 18 is parallel to the axis of the mandrel 1,

The device is provided with a casing 20, which is closed with screws 21 on the flange of the sleeve 19. The sleeve ..9 is provided with a handle 22 for holding the device during centering. The sleeve 19 with its end rests on the shoulder 3 of the mandrel 1,

In the manufacture of the device, the end face of the base ring 17, which is in contact with the reading unit 18, and the support point of the shoulder 23 of the mandrel 1 are polished strictly perpendicular to the axis of the mandrel 1,

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Centering the product nt; ss is carried out as follows.

Select the lys of the stylus set along the length g of the probe 12, corresponding to the hole of the product 13 (the probe length must be less than the diameter of the hole), and insert it into the holder 11,

Then the device is inserted into a 10-inch quill (or spindle) 2 and, by moving the table or the headstock (not shown), roughly visually set along the axis of the product 13. By axially moving the product

15 33 or pintles 2 insert a part of the device with a probe 12 into the opening of the product 13. Push the probe 12 out of the holder 11 into place and set the necessary tension on the reading unit 18 and turning it

20 ikals align the zero with the arrow of the reference node 18. Under the action of the spring of the reference node 18 due to the tension of the sleeve, the sleeve 19 rests against the shoulder 23 of the mandrel 1, ensuring that the reference node 18 remains unchanged on the mandrel 1.

After this, slow rotation of the quill 2 of the machine is turned on, holding the sleeve 22 with the handle 22 against rotation.

In the process of rotation, the pintles 2 together with the lever system radial movements of the probe 12 are transmitted through the lever system 5, the stop 9, the two shoulders lever 1.3 to the rod 14, the base ring 17 and further to the reference node 18. By moving the product 13 and the quinces 2 of the machine to achieve the reference arrow The node 18 did not change its position over the entire rotation of the quill 2 machine. Centering of the product along the axis can be performed both with continuous rotation of the quill 2, and with sequential rotation of the quill 2 in two

45 positions of the probe 12 in the vertical

the plane and in two positions in the horizontal plane with the subsequent movement of the pinot: and 2 or item 13, to ensure the same indicators of the reading unit 18 in all the positions of the probe 13.

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Claims (1)

Invention Formula A device for centering the product axially comprising a mandrel, with a support ring at the end, a lever system hinged on the ring, made in the form of a hinge a parallelogram, two links of which are perpendicular to the axis of the mandrel and one of them is a basic element, a probe fixed on another link, a two-arm lever interacting with the basic element, a rod aligned in the mandrel and interacting with the lever, and the reference 6875 characterized in that, in order to increase the accuracy and convenience of centering, it is equipped with a base ring rigidly fixed on the rod coaxially with it and interacting with its end face with a reference node, and the support ring rigidly fixed on the mandrel. // - / FIG. g S