RU1794616C - Unit for welding of items - Google Patents

Abstract

Usage of the invention: for double-sided welding of sheet metal box products. SUMMARY OF THE INVENTION: the installation consists of a rack 2 mounted on the base 1, a drive carriage 3 (K) mounted on a rail 4 and driven by a pneumatic cylinder 5. K is equipped with a removable 30 and 32 orienting stops. In addition, the carriage 3 has support rollers 25 (P), P made with radial grooves, for unobstructed removal of K after loading K. The operation of K 3 during unloading occurs automatically when the product is mounted on tool holders K and rotated 180 °. 1 s.p. f-ly. 5 ill.

Description

The invention relates to welding, as well. namely, to the construction of a production line section for two-sided welding of box products from sheet metal in a welding tilter, with mechanized loading and unloading of the product on one side of the tilting machine. It is possible to operate the site equipment in automatic mode.

In FIG. 1 shows a section of the production line, side view; in FIG. 2 - view of the faceplate of the tilter; in FIG. 3 - node I in FIG. 1 (position of loading of the forklift); in FIG. 4 - node I in FIG. 1 (position for unloading the forklift); in FIG. 5 - node II in FIG. 3 (the beginning of the removal of the transport trolley after loading the quantizer).

The production line section consists of a single-post welding tilter 2 installed on the base 1, a transport trolley 3 mounted on the rail 4. The transport trolley 3 is connected to the pneumatic cylinder 5 fixedly mounted on the base 1 through the rod 6.

Welding cantilever 2 is equipped with a rotatable faceplate 7, a retainer 8 of the faceplate, a base 9 mounted on the faceplate and a support 10 tool holders for the article 11 to be welded. A pneumatic cylinder 12 with a clamp 13 is installed inside the support tool holder 10. on the guides of which a movable carriage 15 is installed with a welding head 16. To control the movement of the transport trolley 3, a pneumatic valve 17 is installed on the tilter 2. Coils 18 for the welding wire are fixed outside the frame of the tilter.

The transport trolley 3 consists of a frame 19 with rollers 20 and a platform 21. On the platform 21, brackets 22 of catchers 23 are mounted pivotally on the x-axis. Brackets 24 of the support rollers 25 are mounted on the x-axis. 26, stand 27 with the bracket 28. At the last using axis 29, a gripper 30 is installed in the form of a C-shaped two-shouldered lever with working (L

WITH

VI

2

Oh Ј

shoulder a and control shoulder b. In the upper part of the strut 27 on the axis 31, a stop bracket 32 with a compression spring is installed

33. An emphasis bracket 32 is provided with a stop

34. To limit the rotation of the gripper 30, a stop 25 is mounted on the platform 21 in the form of a screw with a lock nut. The rollers 25 are made with through radial grooves V and represent a gear part with

with protrusions and depressions.

In addition, the site is equipped with track automation elements, a control panel, a control cabinet, a welding power supply and a pneumatic system (not shown).

Maintenance of the site and the operation of the mechanisms is as follows,

In the initial position, the faceplate 7 of the welding guide 2 is set to the weld position on the upper plane of the product 11 and is fixed by the latch 8, the welding head 16 is retracted to the upper position (the drive and the movement mechanism are not shown), the carriage 15 is at the beginning of the guide beam console 14. Figure 13 is in the designated position. The transport trolley 3 in the initial position is located at the loading and unloading position of the production line, for example, in the area of operation of the lifting and lowering mechanism of the overhead monorail conveyor.

The workpiece 11 by means of the suspension 36 of the monorail conveyor is lowered and mounted on the support rollers 25 of the transport trolley 3, while the product is oriented using catchers 23 and a support bracket 32, which previously orientates the product VI in the longitudinal direction, excluding the installation of the product on the control arm b grab 30, grab 30 at the same time. occupies a non-working, lower, position, leaning on an emphasis 35.

By turning on the crane pneumatic distributor 17, the plate 6 of the pneumatic cylinder 5, rigidly connected to the transport trolley 3, moves the latter towards the welding tilter 2 along the rail 4. The item to be welded is mounted on tool holders 9 and 10, mounted on the faceplate 7. The inner surface of the upper sheet of the product on the trolley it is located below the support surface of the tool holders by the value of Si, and the inner surface of the bottom sheet of the product is $ 2 below the opposite support surface of the tool holders, moreover, For Si. This condition ensures the installation of the welded article 11 with the base at the nearest to

0

5

0 5 0

fifty

5 0 5

to the welded joint of the plane, excluding the negative effect on the quality of the welds of deviations of the geometric dimensions of the pre-assembled at the tacks of the product. After the product is placed on the lodgements, a gap 83 82-81 remains between their lower surfaces, which is necessary for subsequent re-centering of the product. At the end of the tilter loading, the article 11 is pressed against the end face of the faceplate 7 with damping through the spring 33, while the stop bracket 32 rotates on the axis 31 to a vertical position. In the loading position of the tilter, the gripper 30 does not interact with the item d of the product while in the idle position (Fig. .3).

Next, the CYCLE button on the control panel is turned on, as a result of which the pneumatic cylinder 12 is actuated, the rod of which, connected by a hinged clip 13, presses the welded product to the side support surface of the base tool box 9. After that, the transport trolley 3 is returned to its original position, and then automatic welding of the upper seams of the product is performed. When the trolley returns, the protrusions of the rollers 25 meet a flange on the way fixed to the faceplate 7 of the product 11, turn on the axis 26, rolling the flanging in the groove of the vi roller, the transport trolley is pulled out of the tilter area without hindrance. The end positions of the trolley are monitored by directional inductive-slot sensors, and the clip of the product is a pressure switch (not shown).

The welding head 16 is lowered to the operating position, providing the necessary extension of the welding electrodes and their orientation to the joints. The sequence of welding the seams is determined by the location of the seams on the product 11 and is monitored by sensors (not shown) during the movement of the carriage 15. After welding the upper seams, the actuators are instructed to output the latch 8 and rotate the faceplate 7 by 180 ° with its subsequent fixation in this position. Then the pneumatic cylinder 12 is released for release, as a result of which the product 11, under the action of its own weight, is lowered onto the opposite supporting surface of the tool holders 9 and 10. By repeatedly turning on the CYCLE button, the product is secured, and then welding in the opposite direction of the seams of the other side of the product. After welding, the product is unfastened, and the faceplate 7 remains in the canted position. A command is given to feed the transport trolley 3 toward the tipper 2.

When the trolley 3 is connected to the product 11, the gripper 30 abuts the control arm b against the product element e, axially displaced relative to the element g, and rotates on the axis 29, as a result of which the working shoulder a of the gripper interacts with the opposite side of the element e (Fig. 4) . At the same time, the stop bracket 32 by means of a spring 33 presses the unloaded article 11 to the surface of the working shoulder and the gripper 30, ensuring its working position due to friction forces. Next, the trolley with the product is taken out of the range of the tilting unit 2 to the loading and unloading position of the production line, where the finished product is removed with the help of the suspension 36 and reloading to the suspended monorail

conveyor for further transportation during the process. After unloading, the mechanisms of the forklift 2 return to their original position. Next, the cycle repeats.

Using the proposed section of the production line for welding asymmetric box products allows automating the welding and auxiliary operations using a transport trolley of a simplified design and using a simpler and more reliable control system. The plot is compact, does not require a significant production area. The mechanisms and equipment of the site are less metal-intensive, in comparison with the known ones. The most appropriate use of the proposed layout for small series of manufactured products.

Formula A from Breteni

Claims (2)

1. Installation for welding products, containing mounted on the base of the drive rotary faceplate with clamping devices, a drive carriage mounted to move parallel to the axis of rotation of the faceplate and equipped with orienting and removable stops located on both sides of the axis of rotation of the faceplate of the bed for the product, characterized in that that, in order to increase productivity by automating the process of gripping and pressing the product, the orienting and removable stops are mounted on the faceplate pivotally, orient uyuschy abutment biased relative to the carriage drive, a removable ny abutment is designed as a lever with a slot for the end product, the lodgements for articles mounted on the drive carriage. 2. The device according to claim 1, with the exception that the lodgements are made in the form of rollers with through radial grooves.