Hydraulic workpiece double-side welding machine

Abstract

The utility model discloses a hydraulic workpiece double-face welding machine which comprises a base arranged in the transverse direction, and a rotary driving box is fixedly installed on the upper portion of the middle of the base. A positive and negative tooth lead screw rotationally connected with the base is arranged in the base in a penetrating mode, the positive and negative tooth lead screw is sleeved with two sliding blocks rotationally connected with the positive and negative tooth lead screw, lifting arms arranged in the vertical direction are fixedly installed above the sliding blocks, and welding guns are installed at the top ends of the lifting arms. A main shaft arranged in the vertical direction is installed in the rotary driving box, a working table of a circular structure is fixedly installed at the top of the main shaft, and a pressing plate with the adjustable height is installed over the working table. According to the double-face welding machine for the hydraulic workpieces, the positions of the welding guns can be flexibly adjusted according to the hydraulic workpieces with different calibers and the circumferences of the hydraulic workpieces with different heights, welding of the two circumferences can be synchronously completed, and the welding efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of hydraulic workpiece double-sided welding machine, belong to welding technical field. BACKGROUND

[0002] Welding can be used to connect different metal components to form a complete hydraulic component structure. The welding of hydraulic components includes circumferential welding, which refers to the arrangement and welding operation of welds on a circular workpiece.

[0003] Currently, the welding method commonly used for circumferential welding is to fix the welding gun, rotate the workbench and the workpiece to be welded on the workbench by a motor, and complete the circumferential welding of the workpiece to be welded during rotation. The advantage of this is that the optimal distance between the welding gun and the welding point can be maintained, thereby achieving high-quality welding results.

[0004] However, the above welding method still has the following technical problems in practice:

[0005] 1. The position of the welding gun is generally fixed, and the height of the device for fixing the workpiece to be welded is also fixed. It is not convenient to adjust the position of the welding gun flexibly according to different diameters and different heights of the circumferences. The device needs to be repeatedly disassembled and assembled during the welding process, which is very troublesome.

[0006] 2. Only one circumference can be welded at a time. When multiple circumferences of the same workpiece need to be welded, the overall welding efficiency of multiple circumferences is slow.

[0007] As can be seen from the above, the prior art has obvious inconvenience and defects in actual use, and therefore needs to be improved. INVENTION CONTENTS

[0008] The utility model provides a kind of hydraulic workpiece double-sided welding machine according to the deficiency in the background art, can adjust the position of welding gun flexibly according to different diameters hydraulic workpiece and different height circumferences of hydraulic workpiece, can complete the welding of two circumferences simultaneously, significantly improve welding efficiency.

[0009] To solve the above technical problems, the utility model adopts the following technical solutions:

[0010] The hydraulic workpiece double-sided welding machine comprises a base arranged in the transverse direction, a rotary drive box is fixedly installed on the upper part of the middle part of the base, a forward and reverse toothed rod is rotatably connected inside the base, two sliding blocks are rotatably connected to the forward and reverse toothed rod, a lifting arm is fixedly installed on the upper part of each sliding block in the vertical direction, and a welding gun is installed at the top end of the lifting arm. A main shaft is arranged in the vertical direction inside the rotary drive box, a workbench of circular structure is fixedly installed at the top of the main shaft, and an adjustable height pressing plate is installed above the workbench.

[0011] Further, the lifting arm is composed of a lower fixed arm and an upper telescopic arm.

[0012] Further, the fixed arm and the telescopic arm are both hollow structures, and the fixed arm and the telescopic arm are slidingly connected.

[0013] Further, the lifting arm is internally provided with a first telescopic cylinder, and the first telescopic cylinder provides power for height adjustment of the lifting arm.

[0014] Further, the main shaft is connected with the upper part of the main body of the rotary drive box through a bearing seat.

[0015] Further, the bottom of the main shaft is connected with a rotary motor in the rotary drive box.

[0016] Further, the pressing plate is connected with the head of a second telescopic cylinder through a rotating connecting piece, and the second telescopic cylinder provides power for height adjustment of the pressing plate.

[0017] Further, the second telescopic cylinder is fixedly connected with a fixed frame in a vertical downward direction, and the fixed frame is fixedly installed.

[0018] Further, one end of the positive and negative toothed lead screw is connected with a motor.

[0019] Compared with the prior art, the above technical scheme has the following advantages:

[0020] The positive and negative toothed lead screw in the utility model can drive two sliders to move towards each other to adapt to circumferential welding of hydraulic workpieces with different diameters, and the welding torch can be at a suitable circumferential welding height of the hydraulic workpiece through adjustment of the first telescopic cylinder, and the two welding torches start welding work synchronously, and the hydraulic workpiece completes circumferential welding in the rotating process.

[0021] The two welding torches in the utility model can be used for welding one circumference simultaneously, and can also be used for synchronous welding of two circumferences, and welding efficiency can be significantly improved.

[0022] The utility model will be described in detail below in combination with the drawings and embodiments. DRAWINGS

[0023] Fig. 1 is the structural schematic diagram of the utility model;

[0024] Fig. 2 is the internal structure schematic diagram of the utility model.

[0025] In the figure, 1 - base, 2 - rotary drive box, 3 - positive and negative tooth screw rod, 4 - sliding block, 5 - lifting arm, 6 - welding gun, 7 - first telescopic cylinder, 8 - workbench, 9 - main shaft, 10 - bearing seat, 11 - rotary motor, 12 - pressing plate, 13 - second telescopic cylinder, 14 - fixed frame, 15 - hydraulic workpiece. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation mode of the utility model will be described with reference to the drawings.

[0027] As Figs. 1-2 The utility model provides a hydraulic workpiece double-sided welding machine, including the base 1 who sets up along the transverse, the rotary drive box 2 is fixedly installed in the middle upper position of base 1.

[0028] The positive and negative tooth screw rod 3 is rotatably connected in the inside of base 1, two sliding blocks 4 are rotatably connected on the positive and negative tooth screw rod 3, the positive and negative tooth screw rod 3 is connected with motor at one end, and the positive and negative tooth screw rod 3 drives the two sliding blocks 4 to move towards or away from each other in the positive and negative rotation process.

[0029] The lifting arm 5 in vertical direction is fixedly installed on the upper side of sliding block 4, and the welding gun 6 is installed at the top end of lifting arm 5.

[0030] The lifting arm 5 is composed of a fixed arm at the bottom and a telescopic arm at the top, both the fixed arm and the telescopic arm are hollow structures, and the fixed arm and the telescopic arm are slidingly connected.

[0031] The first telescopic cylinder 7 is installed in the inside of lifting arm 5, the first telescopic cylinder 7 provides power for the height adjustment of lifting arm 5, and further drives the height adjustment of welding gun 6.

[0032] The main shaft 9 in vertical direction is installed in the inside of rotary drive box 2, and the main shaft 9 is connected with the upper part of the main body of rotary drive box 2 through bearing seat 10.

[0033] The workbench 8 of circular structure is fixedly installed at the top of main shaft 9, the workbench 8 is used for placing and fixing the hydraulic workpiece 15 to be welded, and the bottom of main shaft 9 is connected with rotary motor 11 in rotary drive box 2.

[0034] The rotary motor 11 drives the rotation of workbench 8, the hydraulic workpiece 15 is fixed on workbench 8 and rotates with it, and the circumferential welding is completed in the rotation process.

[0035] The height-adjustable pressing plate 12 is installed directly above workbench 8, and the pressing plate 12 is used for pressing the hydraulic workpiece 15 on workbench 8.

[0036] The pressing plate 12 is connected with the head of the second telescopic cylinder 13 through a rotating connecting piece, and the second telescopic cylinder 13 provides power for height adjustment of the pressing plate 12.

[0037] The second telescopic cylinder 13 is fixedly connected with the fixed frame 14 in a vertical downward direction, and the fixed frame 14 is fixedly installed.

[0038] The specific working principle of the utility model is as follows:

[0039] The hydraulic workpiece 15 to be welded is placed on the workbench 8, the second telescopic cylinder 13 drives the pressing plate 12 to press the hydraulic workpiece 15 on the workbench 8, the positive and negative toothed rod 3 drives the two sliding blocks 4 to move towards each other to adapt to circumferential welding of hydraulic workpieces 15 of different diameters, the welding gun 6 is adjusted by the first telescopic cylinder 7 to be at a suitable circumferential welding height of the hydraulic workpiece 15, and the left and right welding guns 6 start synchronous welding work, the workbench 8 and the hydraulic workpiece 15 are rotated by the rotary motor 11 during welding, and the hydraulic workpiece 15 is circumferentially welded during rotation.

[0040] When only one circumference of the hydraulic workpiece 15 needs to be welded, the left and right welding guns 6 work synchronously, and each welding gun 6 only needs to complete 180-degree circumferential welding; when multiple circumferences of the hydraulic workpiece 15 need to be welded, the two welding guns 6 can be at different heights, and each welding gun 6 can complete circumferential welding; and the welding efficiency of the whole circumference can be significantly improved.

[0041] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technical personnel in the art. The protection scope of the utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. Hydraulic workpiece double-sided welding machine, characterized in that: Including the base (1) is arranged in the cross direction, the base (1) is fixedly installed with the rotary drive box (2) on the upper position of the middle part; The positive and negative toothed rod (3) is arranged in the inside of the base (1) and is connected with the base (1) to rotate, the positive and negative toothed rod (3) is sleeved with two sliding blocks (4) which are connected with the positive and negative toothed rod (3) to rotate, the lifting arm (5) which is arranged in the vertical direction is fixedly installed on the upper side of the sliding block (4), and the welding gun (6) is installed on the top end of the lifting arm (5); The main shaft (9) which is arranged in the vertical direction is installed in the rotary drive box (2), the workbench (8) of circular structure is fixedly installed on the top of the main shaft (9), and the height-adjustable pressing plate (12) is installed above the workbench (8).

2. The hydraulic workpiece double-sided welder of claim 1, wherein: The lifting arm (5) is composed of a fixed arm below and a telescopic arm above.

3. The hydraulic workpiece double-sided welder of claim 2, wherein: The fixed arm and the telescopic arm are both hollow structures, and the fixed arm and the telescopic arm are connected in sliding mode.

4. The hydraulic workpiece double-sided welder of claim 3, wherein: The first telescopic cylinder (7) is installed in the lifting arm (5), and the first telescopic cylinder (7) provides power for height adjustment of the lifting arm (5).

5. The hydraulic workpiece double-sided welder of claim 1, wherein: The main shaft (9) is connected with the upper part of the main body of the rotary drive box (2) through the bearing seat (10).

6. The hydraulic workpiece double-sided welder of claim 5, wherein: The bottom of the main shaft (9) is connected with the rotary motor (11) in the rotary drive box (2).

7. The hydraulic workpiece double-sided welder of claim 1, wherein: The pressing plate (12) is connected with the head of the second telescopic cylinder (13) through the rotary connecting piece, and the second telescopic cylinder (13) provides power for height adjustment of the pressing plate (12).

8. The hydraulic workpiece double-sided welder of claim 7, wherein: The second telescopic cylinder (13) is fixedly connected with the fixed frame (14) in the vertical downward direction, and the fixed frame (14) is fixedly installed.

9. The hydraulic workpiece double-sided welder of claim 1, wherein: One end of the positive and negative toothed rod (3) is connected with the motor.

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