Welding device for oil return cylinder production

Abstract

The utility model discloses a welding device for oil return cylinder production, which comprises an inverted U-shaped support, the inverted U-shaped support is fixedly connected above a rack, the bottom of the inverted U-shaped support is provided with a rotating shaft arranged along the vertical direction, the rotating shaft is rotatably arranged at the top of the rack, the bottom end of the rotating shaft is connected with a stepping motor, the top end of the rotating shaft is fixedly provided with a horizontally arranged supporting plate, and the supporting plate is fixedly connected with the inverted U-shaped support. A positioning boss is arranged in the upper end face of the supporting plate. A pressing plate capable of ascending and descending is installed over the supporting plate. The left side and the right side of an inner cavity of the inverted-U-shaped support are each provided with a set of welding guns, the welding guns are connected with the head of a feeding air cylinder through fixing bases, and a cylinder body of the feeding air cylinder is fixedly connected to the outer portion of the inverted-U-shaped support in the horizontal direction. According to the welding device for oil return cylinder production, synchronous forming of a plurality of welding seams can be achieved after the oil return cylinder is positioned at a time, welding efficiency can be improved, and forming errors can be reduced.

Description

Technical Field

[0001] The utility model relates to a welding device for producing an oil return cylinder, belonging to the technical field of oil return cylinder production. Background Art

[0002] The main function of the oil return cylinder is to ensure that the hydraulic oil can return to the oil tank smoothly after completing the work, so that it can be hydraulically pumped into the hydraulic system again to achieve the recycling of the hydraulic oil.

[0003] The structure of the oil return cylinder in the prior art is as shown in the attached Figure 1 As shown, the oil return cylinder includes an oil return cylinder main body 1 with a filter element installed, and a defoaming cylinder 2 is coaxially arranged below the oil return cylinder main body 1. The oil return cylinder main body 1 and the defoaming cylinder 2 are connected by a connecting plate 3. The end of the defoaming cylinder 2 away from the oil return cylinder main body 1 is connected to the bottom flange 4, and the end of the oil return cylinder main body 1 away from the defoaming cylinder 2 is connected to the top flange 5. The adjacent components are fixedly connected by welding.

[0004] The oil return cylinder is made of multiple components spliced ​​together by welding, which involves the forming of multiple welds. Currently, each weld of the oil return cylinder needs to be welded multiple times, which has low welding efficiency. During the welding process, each component needs to be positioned multiple times, which can easily lead to large forming errors.

[0005] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content

[0006] In view of the deficiencies in the background technology, the utility model provides a welding device for oil return cylinder production, which can realize synchronous forming of multiple welds after positioning the oil return cylinder once, thereby improving welding efficiency and reducing forming errors.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The welding device for oil return cylinder production includes an inverted U-shaped bracket, which is fixed to the top of the frame. A rotating shaft arranged in the vertical direction is installed at the bottom of the inverted U-shaped bracket, and a horizontally arranged support plate is fixedly installed on the top of the rotating shaft; a liftable pressure plate is installed directly above the support plate; a group of welding guns are respectively installed on the left and right sides of the inner cavity of the inverted U-shaped bracket, and the welding guns are respectively connected to the head of the feed cylinder through a fixing seat, and the cylinder body of the feed cylinder is fixed to the outside of the inverted U-shaped bracket in the horizontal direction.

[0009] Furthermore, the rotating shaft is rotatably mounted on the top of the frame.

[0010] Furthermore, the bottom end of the rotating shaft is connected to the stepping motor.

[0011] Furthermore, a positioning boss is provided on the upper end surface of the support plate.

[0012] Furthermore, the top of the pressing plate is connected to the head of the downward pressing cylinder through a rotating member.

[0013] Furthermore, the cylinder body of the downward pressure cylinder is fixed to the top of the inverted U-shaped bracket along the vertical direction.

[0014] Furthermore, each group includes two welding guns arranged one above the other.

[0015] Furthermore, the welding gun is fixedly connected to the fixing seat.

[0016] Furthermore, the fixing seat is hingedly connected to the feed cylinder head.

[0017] Compared with the prior art, the present invention has the following advantages after adopting the above technical solution:

[0018] The oil return cylinder to be welded is placed on the positioning boss of the support plate, and the downward pressure cylinder is extended to drive the pressure plate to descend to realize the downward pressure positioning of the oil return cylinder. After positioning, multiple feed cylinders are extended respectively to bring the welding gun head close to the weld, and the welding gun welds the weld. While welding, the stepper motor drives the support plate and the oil return cylinder to rotate 360° through the rotating shaft. During the rotation of the oil return cylinder, multiple welds are welded synchronously, which significantly improves the welding efficiency.

[0019] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the oil return cylinder in the prior art;

[0021] Figure 2 It is a structural diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of the oil return cylinder in the positioning state.

[0023] In the figure, 1-oil return cylinder body, 2-defoaming cylinder, 3-connecting plate, 4-bottom flange, 5-top flange, 6-inverted U-shaped bracket, 7-frame, 8-rotating shaft, 9-support plate, 10-positioning boss, 11-stepping motor, 12-pressure plate, 13-rotating part, 14-downward pressure cylinder, 15-welding gun, 16-fixed seat, 17-feed cylinder. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.

[0025] like Figure 1As shown, the oil return cylinder in the prior art includes an oil return cylinder main body 1 with a filter element installed, and a defoaming cylinder 2 is coaxially arranged below the oil return cylinder main body 1. The oil return cylinder main body 1 and the defoaming cylinder 2 are connected by a connecting plate 3. The end of the defoaming cylinder 2 away from the oil return cylinder main body 1 is connected to the bottom flange 4, and the end of the oil return cylinder main body 1 away from the defoaming cylinder 2 is connected to the top flange 5. The adjacent components are connected by welding.

[0026] like Figure 2-Figure 3 As shown together, the present invention provides a welding device for oil return cylinder production, including an inverted U-shaped bracket 6, which is fixedly connected to the top of a frame 7.

[0027] A vertically arranged shaft 8 is installed at the bottom of the inverted U-shaped bracket 6. The shaft 8 is rotatably mounted on the top of the frame 7. A horizontally arranged support plate 9 is fixedly mounted on the top of the shaft 8. The bottom end of the shaft 8 is connected to the stepping motor 11.

[0028] A positioning boss 10 is provided on the upper end surface of the support plate 9 , and the positioning boss 10 positions the oil return cylinder body 1 .

[0029] The supporting plate 9 is used to support the oil return cylinder longitudinally. The stepping motor 11 drives the supporting plate 9 and the oil return cylinder to rotate through the rotating shaft 8. The oil return cylinder welds multiple welds synchronously during the rotation process.

[0030] A lifting and lowering pressing plate 12 is installed just above the supporting plate 9 .

[0031] The top of the pressing plate 12 is connected to the head of the pressing cylinder 14 through a rotating member 13, and the cylinder body of the pressing cylinder 14 is fixedly connected to the top of the inverted U-shaped bracket 6 in the vertical direction. The pressing cylinder 14 drives the pressing plate 12 to descend, thereby pressing down the top of the oil return cylinder and ensuring stable rotation of the oil return cylinder.

[0032] A group of welding guns 15 is installed on the left and right sides of the inner cavity of the inverted U-shaped bracket 6, and each group includes two welding guns 15 arranged one above the other.

[0033] The welding guns 15 are connected to the heads of the feed cylinders 17 through the fixing seats 16 , and the cylinder body of the feed cylinder 17 is fixed to the outside of the inverted U-shaped bracket 6 in the horizontal direction.

[0034] The welding gun 15 is fixedly connected to the fixing base 16, and the fixing base 16 is hingedly connected to the head of the feeding cylinder 17, so that the angle of the welding gun 15 can be adjusted.

[0035] like Figure 2As shown, the welding gun 15 on the upper left in the present invention is used for welding the weld between the defoaming cylinder 2 and the connecting plate 3, the welding gun 15 on the lower left is used for welding the weld between the oil return cylinder body 1 and the top flange 5, the welding gun 15 on the upper right is used for welding the weld between the defoaming cylinder 2 and the bottom flange 4, and the welding gun 15 on the lower right is used for welding the weld between the oil return cylinder body 1 and the connecting plate 3.

[0036] The specific working principle of this utility model:

[0037] The oil return cylinder to be welded (top flange 5, oil return cylinder body 1, connecting plate 3, defoaming cylinder 2, bottom flange 4 in the bottom-up direction) is placed on the positioning boss 10 of the support plate 9; the downward pressure cylinder 14 is extended to drive the pressure plate 12 to descend, so as to press the top end of the oil return cylinder downward; multiple feed cylinders 17 are extended to move the head of the welding gun 15 close to the weld, and the welding gun 15 welds the weld. While welding, the stepping motor 11 drives the support plate 9 and the oil return cylinder to rotate 360° through the rotating shaft 8. During the rotation of the oil return cylinder, multiple welds are welded synchronously, which significantly improves the welding efficiency.

[0038] The above description is merely an example of the preferred embodiment of the present invention. Any details not described in detail are common knowledge within the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. Welding device for oil return cylinder production, characterized by: The invention comprises an inverted U-shaped bracket (6), the inverted U-shaped bracket (6) is fixedly connected to the upper part of the frame (7), a rotating shaft (8) arranged in the vertical direction is installed at the bottom of the inverted U-shaped bracket (6), a horizontally arranged supporting plate (9) is fixedly installed on the top of the rotating shaft (8), and a lifting and lowering pressure plate (12) is installed just above the supporting plate (9); a group of welding guns (15) are respectively installed on the left and right sides of the inner cavity of the inverted U-shaped bracket (6), and the welding guns (15) are respectively connected to the head of the feed cylinder (17) through the fixing seat (16), and the cylinder body of the feed cylinder (17) is fixedly connected to the outside of the inverted U-shaped bracket (6) in the horizontal direction.

2. The welding device for oil return cylinder production according to claim 1, characterized in that: The rotating shaft (8) is rotatably mounted on the top of the frame (7).

3. The welding device for oil return cylinder production according to claim 2, characterized in that: The bottom end of the rotating shaft (8) is connected to the stepping motor (11).

4. The welding device for oil return cylinder production according to claim 1, characterized in that: A positioning boss (10) is provided in the upper end surface of the support plate (9).

5. The welding device for oil return cylinder production according to claim 1, characterized in that: The top of the pressing plate (12) is connected to the head of the downward pressing cylinder (14) via a rotating member (13).

6. The welding device for oil return cylinder production according to claim 5, characterized in that: The cylinder body of the downward pressure cylinder (14) is fixedly connected to the top of the inverted U-shaped bracket (6) in the vertical direction.

7. The welding device for oil return cylinder production according to claim 1, characterized in that: Each set of welding guns (15) includes two welding guns (15) arranged one above the other.

8. The welding device for oil return cylinder production according to claim 1, characterized in that: The welding gun (15) is fixedly connected to the fixing seat (16).

9. The welding device for oil return cylinder production according to claim 8, characterized in that: The fixed seat (16) is hingedly connected to the head of the feed cylinder (17).

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