SU1281359A1 - Semiautomatic machine for electron-beam welding - Google Patents

Abstract

The invention relates to the field of electron beam welding and is intended for the assembly and welding of cylindrical parts with a ring seam in a semi-automatic mode. The semiautomatic device contains an assembly and press-fitting unit, a demagnetization unit. and a welding unit, as well as mechanisms for loading and unloading parts, which are interconnected by a step-by-step transfer-type device with lodgments for parts. There are devices for lifting cradles; in the process of stepping and for supplying them to work positions. 1 hp f-ly, 3 ill.

Description

YU

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one

The invention relates to electron-beam welding of steel products, in particular, to welding ring welds, and can be used in mechanical engineering and instrument making for welding ring welds of rotational parts.

The aim of the invention is to increase productivity and reduce floor space.

The goal is achieved by combining the assembly operations in a single technological process with welding and pressing, as well as demagnetizing the parts before the welding operation.

FIG. 1 shows a semi-automatic with working positions, section; FIG. 2 is a section A-A in FIG. 1; Fig. 3 shows a kinematic diagram of a semiautomatic device.

A semiautomatic device for assembling and electron-beam welding of parts, mainly along the butt joint of the male and female parts, contains base 1, assembled C-shaped profile, In the upper part of base 1, assembly 2, demagnetized 3, electron beam gun 4 knots 5 welding, mechanism 6 unloading parts. The swivel tray. 7 is hingedly mounted on the base and also hingedly connected to the driving carriage 8. The swiveling tray 7 provides unloading of products. The drive carriage 8 is mounted on the base with the possibility of reciprocating movement in the direction of the process. On the drive carriage B, lodgments 9 are mounted, arranged in two rows, devices-satellites 10 for parts mounted on the cradles with the possibility of lifting by means of two lifting mechanisms 11 and 12 in the form of rulers connected to each other and with the rods of the power cylinders 13 of their lifting mounted on the lower part of the base 1, Rulers 11 and 12 are installed with the ability to interact with satellite devices 10. On the lower part of the base 1 at the ends of the rulers 12 there are two mechanisms 14 for pushing satellite devices 10 from one p yes lodgements 9 on the second and back,

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The assembly assembly 2 is made in the form of a spindle 15 with elements for holding parts mounted in the upper part of the base 1 so as to be rotated along the process, Coopo and just one of the spindle 15 is installed a power pressing cylinder 16, which is provided with a centering rod 17 that has the ability to interact with satellite fixture 10,

The mechanism for installing parts at the machining positions: the demagnetization unit 3 and the welding unit 5 are made 5 in the form of power cylinders 18 and 19 installed in the lower part of the base 1 coaxially and opposite to the specified units. Power cylinders 18 and 9 are equipped with centering rods, respectively, 20 and 21, Carriage 8 has a stepper drive 22 of its reciprocating movement, Welding unit 5 is associated with a mechanism for rotating parts, which contains an electric motor with thyristor control. The electron beam gun 4 is located above the chamber of the welding unit 5 with the possibility of reciprocating movement by the value of the maximum radius of the weld Р „

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At the loading position, there is a reception table 23 for assembled parts, rigidly connected to one

35 of the pushors 14 and provided with buttons 24 of the two-handed turn on of the semiautomatic device.

A spindle 15 is connected to the loading position of the assembly 2 of the assemblyJ which is connected to the power cylinder 25 of rotation, which is mounted in the upper clock of the base 1, the spindle 15 is hinged on the base 1 and has a telescopic body in it

45 a rod 26, in the internal cavity of which an orienting axis 27 extends, at the end of which the holding elements of the parts 28 are placed; Telescopic rod 26 is rigidly connected with

50 by a single-crown, cylindrical cylinder 29 fixed to the end of the spindle 15 and serving for the withdrawal of the orienting axis 27 from the assembled product.

The unloading mechanism 6 contains re-55 guided grippers 30 associated with one of the rods 31 of a two-rod power cylinder 32. Adjustable grippers of the DA have bevels 33 on the working surface, which ensure the installation of parts at the machining position: degaussing unit 3 and welding unit 5; the form of power cylinders 18 and 19 installed in the lower part of the base 1 coaxially and opposite to the indicated nodes. Power cylinders 18 and 9 are equipped with centering rods, respectively, 20 and 21, Carriage 8 has a stepper drive 22 of its reciprocating movement, Welding unit 5 is associated with a mechanism for rotating parts, which contains an electric motor with thyristor control. The electron beam gun 4 is located above the chamber of the welding unit 5 with the possibility of reciprocating movement by the value of the maximum radius of the weld Р „

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At the loading position, there is a reception table 23 for assembled parts, rigidly connected to one

5 of the pushors 14 and provided with buttons 24 for the two-handed activation of the semiautomatic device.

A spindle 15 is connected to the loading position of the assembly 2, and the spindle 15 is connected to the rotational cylinder 25 installed in the upper clock of the base 1, the spindle 15 is hinged to the base 1 and has a telescopic body in it.

5 a rod 26, in the internal cavity of which an orienting axis 27 passes, at the end of which the holding elements of parts 28 are placed; Telescopic rod 26 is rigidly connected with

0 with a single-crown-mounted cylinder 29, attached to the end of the spindle 15 and serving to bring the orienting axis 27 out of the assembled product.

The unloading mechanism 6 contains adjustable knobs 30 associated with one of the rods 31 of a two-rod power cylinder 32. Adjustable grippers AOR have bevels 33 on the working surface that ensure reliable divergence of the grips when interacting with the part.

Each satellite fixture 10 includes a cylindrical body 34 in which a disk 35 with an interchangeable mandrel 36 is mounted on the bearings, intended to fix the assembled part on it. The outer diameter of the mandrel corresponds to the inner hole of the assembled parts. The presence on the disk 35 of the conical plane 37 (conical collar) ensures the sealing of the chamber of the welding unit 5. Plane 37 has the ability to interact with the sealing ring 38 of the housing 39 of the chamber of the node 5 welding. A ring 40 (cylindrical collar) is rigidly mounted on the housing 34 of satellite 10, designed to interact with the cradles 9 of the drive carriage 8. A disk 41 with a centering hole 42 is fixed to the bottom plane of the housing 34, which is alternately interacting with the centering rods along the process mi 17,20 and 2 power cylinders 16, 18 and 19,

The semiautomatic device is equipped with a monitoring and control system. The control system of the semiautomatic device provides for the presence of contactless sensors 43 and 44 installed at the loading positions 45 and 46, associated with node 2, 47

The semiautomatic device for assembling and electron beam welding of parts works as follows.

Products consisting, for example, of two parts, the operator takes

from the receiving table 23 and puts it on the orienting axis 27 of the assembly mechanism 2, which is in the horizontal position. Then he push

/ 0 is the button 24 of the two-handed power-on unit. The assembly mechanism 2 under the action of the rod of the power cylinder 25 is rotated 90 (into a vertical position). At the command of the bes / 5 contact sensor 44, the pressure cylinder 16 is pressed in. Its centering pin I7 enters the hole 42 of the lower disk of the satellite 10 and with it

20 rises to the parts of the product located on the orienting axis 27 of the assembly mechanism 2. The orienting mandrel 36 of the satellite adapter 10 is included in the assembled product,

25 pressing it. At the command of the proximity sensor 46, the single-cavity power cylinder 29 of the assembly mechanism 2 outputs the orienting axis 27 from the product, leaving it on the orienting mandrel 36 of the satellite 10, the Power pressing cylinder 16 is lowered to the lower position, leaving the satellite 10 with the product on the crates 9

and 48 assemblies associated with the mechanism s5 of the working row of the driving carriage 8, 11 of lifting the satellite devicesControl of the presence of the product on

10, 49 - sensor monitoring on-mandrel 36 of the satellite device

the presence of parts during pressing, 50 -10 is carried out by contactless

52 - sensors associated with the node by the sensor 49, non-contact sensor

magnetization, sensors 53 and 54 - to the position of welding, sensors 55 and 56 - to the position of unloading, sensors 57 and.

58 on the propeller 14 at the beginning of the process, sensors

59 and 60 - at the pinner 14 at the end of the technological process, the sensors 61 and 62 are connected with the jog drive 22 of the movement of the carriage 8,

In addition, sensors that monitor the operation of the semiautomatic device are installed on the electron beam track 4 and are connected to the vacuum system and the firing of the gun.

Data from all sensors are fed to a microprocessor (not shown),

40 45 the lower position of the pressing cylinder 16 commands the drive 22 of the carriage 8 to move and the command to the pneumatic cylinder 25 to rotate the mechanism 2 of the boom to the horizontal position.

45 8 with the cradle 9 moves the companion satellite 10 with the part to the demagnetization position (the position of the carriage is monitored by contactless sensors 61 and .62),

50 proximity sensor command 62. the I8 power cylinder is actuated and the centering rod 20 lifts the satellite device 10 with the product from the cradle 9 of the carriage 8 and inserts

55 them in the node 3 demagnetization, interact with the proximity sensor 52 and the brake spool. At the same time, the satellite device 10 with a piece performs a reciprocal lifting mechanism, consisting of lines P and 12, contain guide rails 63 - 66 in the places of movement of the satellite devices 10,

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A semiautomatic device for assembling and electron beam welding of parts operates as follows.

Products consisting, for example, of two parts, the operator takes

from the receiving table 23 and puts it on the orienting axis 27 of the assembly mechanism 2, which is in the horizontal position. Then he presses the / 0 em button 24 of the two-arm powering on of the unit. The assembly mechanism 2 under the action of the rod of the power cylinder 25 is rotated 90 (into a vertical position). At the command of the bes / 5 contact sensor 44, the pressure cylinder 16 is pressed in. Its centering pin I7 enters the hole 42 of the lower disk of the satellite 10 and with it

20 rises to the parts of the product located on the orienting axis 27 of the assembly mechanism 2. The orienting mandrel 36 of the satellite adapter 10 is included in the assembled product,

25 pressing it. At the command of the proximity sensor 46, the single-cavity power cylinder 29 of the assembly mechanism 2 removes the orienting axis 27 from the product, leaving it on the orientation 5 of the mandrel 36 of the satellite 10, the power pressing cylinder 16 is lowered to the lower position, leaving the fixture-satellite 10 with the product on the cradle 9

45 of the lower position of the pressing cylinder 16 gives the command to the actuator 22 of the carriage 8 to move and to command the pneumatic cylinder 25 to rotate the assembly mechanism 2 into a horizontal position. The carriage

8 with the cradle 9 moves the satellite fixture 10 with the part to the demagnetization position (the carriage position is monitored by contactless sensors 61 and .62),

the command of the proximity sensor 62 actuates the cylinder I8 and the centering rod 20 lifts the satellite device 10 with the product from the cradle 9 of the carriage 8 and inserts

them in the node 3 demagnetization, interact with the proximity sensor 52 and the brake spool. In this case, the satellite device 10 with the part makes reciprocating movements in the demagnetization unit 3. The number of movements is set by the microprocessor. After the end, the cylinder 18 is lowered to the lower position (control sensor 51), leaving the satellite device 10 with the part on the cradle 9 of the carriage 8.

At the command of the proximity sensor 51, the carriage B with the cradles 9 transfers the satellite attachment 10 with the part to the welding position. At the command of the proximity sensor 62, the power cylinder 19 is actuated and the centering rod 21 lifts the satellite attachment 10 with the part into the chamber of the welding unit 5. This pfiCK 35 plane 37 interacts with the sealing ring 38 of the housing 39 of the chamber of the welding unit 5, sealing the chamber 5 with the part. G Non-contact sensor 54 of the upper position of the cylinder 19 gives the command for 11 production of electron beam welding. The rotation of the product during welding is carried out by pressing it against the rotating matrix of the welding chamber 5 from the drive.

At the end of the welding, the cylinder 19 is lowered to the lower position, hectare. The satellite device 10 with the welded part remains on the cradles 9 of the carriage 8 and at the command of the sensor 53 the carriage. 8 moves one step to the unloading mechanism.

At the command of the proximity sensor 62, the discharge mechanism 6 is lowered to the lower position (the lower position is monitored by the proximity sensor 55). Adjustable grip 30 coupled to stem

31-pin power cylinder

32, 33 interacting with the part, expands — and covers: the welded part located on the mandrel 36 of the satellite device 10 At the command of the sensor 55, the finished part is removed from the mandrel 36 and rises to the middle position, the contact sensor 56 closes. sensor 56 lifting mechanism 11 with two rulers 12 using a power cylinder 13 lifts devices - satellites 10 above the cradle 9 of the working row and carriage 8, contactless closure Sensor 47, On command from sensors 56 and 47, carriage 8 makes a return stroke, closes dates -shk 6

When the carriage 8 is making a return stroke, the rotary chute 7, pivotally connected with the carriage 8, is inserted under the unloading mechanism 6, the grips 30 of which hold the welded part in the middle position.

On command from the proximity sensor 6, the unloading mechanism 6 performs the final lifting and dumping of the part on the rotary chute 7.

In case of violation of the energy parameters of welding, the removal of the part of the satellite fixture 10 does not occur and the unloading mechanism 6 does not work.

After removing the part and resetting it

On tray 7, as commanded by sensor 56, satellite fixture 10 is moved by re-pressure 14 to idle row of cradle 9 along guide rails.

plates 63 and 65 lines 12. The control of the operation of the pin 14 of satellite devices 10 is carried out by sensors 59 and 60.

At the time of pushing the devices of satellites 10 from the working row of lodgements 9 to the idle bar 1 1 and 12 satellites 10 should be in the lower position (the control of the position of the rulers

proximity sensors 47 and 48). The satellite fixture 10 is idling along the lodgements 9 of the carriage 8 and returns to the assembly position from the idle row by the propellant 14

moves along guide rails 66 and 64 to a working row of cradles. The cycle repeats,

Claims (1)

Invention Formula 1, Semi-automatic machine for electron beam cBapKii, contents placed on the base a welding unit in the form of a vacuum chamber with an electron-beam gun, a multiitem mechanism for moving parts, mechanisms for loading and unloading parts, as well as a system for controlling with track sensors, different The fact that, in order to increase productivity, the semiautomatic device is equipped with a node installed successively along the process - parts assembly, demagnetization node, devices, satellites and mechanisms for their installation in processing positions, mounted opposite to the corresponding equipment; a spindle with elements for fastening parts that are rotatable in the course of the process; the parts unloading unit is made in the form of a cylinder, on the rod of which the clamps are mounted for removing the part and the rotary chute, kinematically connected with the mechanism for moving parts, with a replaceable mandrel for the part and two shoulders, one of which is conical for sealing the welding chamber, and the other cylindrical for mounting on the position of the movement mechanism. 2, Semiautomatic device according to claim 1, characterized in that the mechanism for moving parts is made in the form of a drive carriage mounted on the base with the possibility of reciprocating movement in a horizontal plane in the direction of the process, on which lodgements for satellite devices are installed in two rows , and two independent lifting lines, installed on the frame with the ability to interact with the co. the corresponding lodgements are comrade. FIG. 2 25 av / 35U FIG. 3 56 55 ta