SU1338932A1 - Machine for making spectacle frame joint - Google Patents

Abstract

The invention relates to the medical industry and is used to handle the hinge of a harpoon-type spectacle frame, and it can also be used to process parts in the radio and electrical regions. The aim of the invention is to increase productivity. The machine consists of raznosSL S number 5 (Pui.l

Description

disk (D) 1 fixed on a common shaft with a Maltese cross 4 in bearings 2 of a reducer (P) 3 placed on frame 5. D1 has clamps evenly spaced around the circumference of the D1 circle. “The machine is equipped with a die 11 with a slider feeding the workpiece, working from a power pneumatic cylinder 9, a floating matrix with stepped knives, a punch driven by a camshaft, a safety gear with a spring-loaded pressure roller. The machine is equipped with spindle floating drilling heads (SG) 22 with a fixed center1

The invention relates to the medical industry and is used to make a hinge for spectacle frames, for example,

type harpoon,

and it can also be used to process parts of the electrical and radio industry.

I

The purpose of the invention is to increase productivity.

Figure 1 shows the machine, a general view; FIG. 2 is a view A of FIG. 1; on fig.Z - section bb in figure 2; figure 4 - section bb In fig.1j figure 5 - section dvg on fig, 1.

The machine consists of a separate disk 1 (Fig. 1) mounted in bearings 2 in the gearbox housing 3 together with a Maltese cross 4. The gearbox is mounted on the base 5 and is driven into rotation from the electric motor 6. The clamping devices 7 (Fig. 4) are evenly spaced the perimeter of the circumference of the disk 1. The feeding device includes a slider 8 with a power pneumatic cylinder 9 fed by a pneumatic distributor 10, a stamp 11 (figure 2).

The stamp contains a floating matrix 12 (FIG. 4) with stepped blades 13, driven from a power pneumatic cylinder 14, powered by a pneumatic distributor 10, a punch 15, driven into a forward-return movement from a cam v. 16 through a system 17 of levers.

the safety device 18, the pressure device with a roller 19, a slider 20 and a spring 21. The machine is equipped with drilling heads 22 (FIG. 5), with rotatable spring-loaded brackets 23, by means of which they are hinged to the post 24 installed on the front wall of the gearbox.

10 Cases 25 of spindle heads are hinged on brackets 23 by a fixed axis 26, rigidly fixed to the body 25 and mounted exactly along the axis of the drill centering pin 15 27. The reciprocating movement of the drill is transmitted through the lever 28 hinged on the stand 29 from the cam 30, located on the cam shaft 16.

20 Drilling heads 22 with their own

axes are located perpendicular to the separated disk 1. They are intended for drilling holes in the heads of the hinge 31, the drive

The rotation 25 of the drills is carried out from the electric motor 32.

The milling head 33 with a set of milling cutters serves to clean the side walls of the hinge 31. They are hinged on the side wall of the gearbox, the cutter and the cutter are driven from the camshaft 16, the rotation of the milling cutter is driven by the electric motor 34. 35 The machine works as follows in a way.

The prism 27. The SG22 is mounted on a swivel bracket mounted on a rack mounted on the front wall of the relay. The removal and supply drive of the SG is produced from the camshaft 16 through the cam and the spring-loaded sector. The drill feed drive is carried out from the cam 30 through the lever 28, the machine is equipped with a milling head with a set of cutters 33 for cleaning the sides of the hinge harpoon. In this way, the process of obtaining the hinge of the spectacle frames at increasing productivity is automated. 5 il.

313

The starting material for making a harpoon-type hinge is a long profile bar 35 with pre-milled legs and a hinge head. The blank is inserted into the groove of the feeding device (Fig. 3). The slider 8 with its longitudinal conical protrusions engages with the lateral sides of the hinge heads, which serve as the supporting and adjusting base. From the reciprocating movement of the slider 8, the workpiece is fed under the punch 15 of the stamp (Fig. 4). The matrix 12 with the blades 13 is in the lower position. The stock is freely delivered to the cutting area. The die 12 moves to the upper extreme position, the knives protrusions. 13 enter between the legs under the hinge shelf 31 on the bar 35. After that, the punch 15. The hinge head enters the punch 15 groove. As soon as the punch touches the hinge shelf 31 under the action The pressing device with a roller 19, the safety device 18 presses the head of the shasner to the punch (Fig. 4) and holds it in this position until the hinge is cut to the notch and fed to the nest of the clamping devices, which are pressed by the cam 36, after which the punch 15 returns It is in the initial position and the hinge remains in the clamped state to the final processing of all numerals.

The machine for making the hinge of spectacle frames is mainly of a harpoon type, which has a multiple position mounted on the frame. Positions move from a six-position Maltese cross 4 rigidly connected to a different disk with one loading and portable disk 1. Fixing by position working positions with drilling and milling heads, and with clamping devices for securing workpieces in them, located 45 around the perimeter of the disk at the loading and working positions,

It takes place with the help of six prisms that are additionally cut along the perimeter of the cross and is fixed by a pin pneumatic retainer 37.

At the second position is the centering of the hinge head (figure 5). During positioning, the drilling heads 22 with the centering prisms 27 help and the cams 38 move away from the heads of the hinge 31, freeing the disk 1 to rotate in positions. The drilling head 22 (Fig. 5) with a prism 27 under the head of the hinge 31 is supplied as follows. The drilling heads 22 are provided with a device, daiush; they have the ability to move not only up and down, quince in the lateral direction up to 20, i.e.;

y and with the fact that, in order to improve performance, it is equipped with a brane stamp installed at the 5Q loading position and made with two working positions, one of which, the feed, is made in the form of a slider installed with reciprocating motion with two vertices fixed on it and facing its own one wedge protrusions towards the other to place the grooves of the blanks on them, and another working position is 55

0

g o

on the size of the pharynx centering prism 27.

The cam 38, the roller spring raid 39, which is rigidly attached to the movable bracket 23, rotates it on the rack 24. The base of the drilling head 22 with the prism 27 and the axis 26 is bolted to the bracket. Moving up, the bracket 23 brings the prism under the hinge head 31, having previously compressed the spring 40, is provided. reliable installation of a prism 27 on the head of the hinge 31. The hole is drilled. The rotational drive of the drill is an electric motor 32 (Fig. 1). The feed of the drill comes from the cam 30 through the lever 28.

At the third position, all the operations of the second position are repeated.

The fourth position is the final milling of the hinge head with a set of cutters of the milling head .33. The milling of the cutters is carried out with the help of a cam located

on the cam shaft 16. 1

At the fifth position, the finished hinge is removed with compressed air.

The invention improves performance by automating the loading position.

0

Claims (1)

Invention Formula The machine for the hinge making of spectacle frames is mainly of a harpoon type, which contains a separate multi-position disk mounted on a frame with one loading and several working positions with drilling and milling heads, and with clamping devices for fixing the blanks in them located along the perimeter of the disk on the loading and working positions, about tl and h and y - u and with the fact that, in order to improve productivity, it is equipped with a branded stamp installed at the loading position and made with two working positions, one of which, the feed, is made in the form of a reciprocating two fixed to it and turned their tops one towards the other wedge protrusions to accommodate the grooves of the blanks, and the other working position completed in the form of a matrix with stepped knives for placing the grooves of the workpieces on them, installed with the possibility of reciprocating movement in a plane perpendicular to the direction of movement of the paws 13389326 the catcher, mounted on the punch, as well as a self-centering device on the workpiece, mounted on the frame at the working position of the drill to center the drill. S 3 in-in RC2. Yr hell 5 Editor N. Tupitsa Compiled by M. Tarlavska Tehred L.OliynykKorrektor A.Obruchar Order 4167/8 Draw 730 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4