Device for preventing welding deformation of thin-wall cylinder barrel

Abstract

The utility model belongs to the technical field of welding equipment, and particularly relates to a device for preventing welding deformation of a thin-wall cylinder barrel, which comprises a cooling plate, an annular mounting groove is arranged at one end of the cooling plate, a notch communicated with the mounting groove is arranged at the upper end of the cooling plate, and a cylinder body is tightly attached in the mounting groove. A first annular cooling cavity and a second annular cooling cavity are formed in the cooling plate, and the first annular cooling cavity and the second annular cooling cavity are communicated through a drainage hole; the mounting groove is positioned between the first annular cooling cavity and the second annular cooling cavity; a liquid inlet pipe communicating with the first annular cooling cavity is arranged on the outer side of the cooling plate, and a liquid outlet pipe communicating with the second annular cooling cavity is arranged on the outer side of the cooling plate. According to the device, the thin-wall cylinder barrel can be wrapped, clamped and cooled, welding operation can be rapidly achieved, welding deformation can be reduced, secondary finish machining does not need to be conducted on the inner wall of the cylinder barrel, efficiency is improved, and cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, in particular to a device for preventing welding deformation of a thin-wall cylinder. Background Art

[0002] Thin-walled cylinders are usually drilled and welded with joint pipes at the hole positions. For example, in the manufacturing process of thin-walled cylinders and hydraulic cylinders, a thin-walled cylinder body is first selected, a hole is drilled in the thin wall, and the inlet / outlet gas (oil) pipe joints are welded at the hole positions.

[0003] However, during the welding process, there are certain requirements for welding quality, and it is necessary to ensure that the welding deformation of the inner wall of the gas (oil) cylinder barrel that is not processed after welding is within an appropriate range. At present, a cooling device is generally set up to cool the welding workpiece before welding, but conventional cooling devices are difficult to apply to the cooling welding operation of thin-walled cylinder barrels, and the cooling effect and welding deformation are difficult to control. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the utility model provides a device for preventing welding deformation of a thin-walled cylinder.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A device for preventing welding deformation of a thin-walled cylinder barrel comprises a cooling plate, one end of which is provided with an annular mounting groove, the upper end of which is provided with a notch connected to the mounting groove, a cylinder body is closely arranged in the mounting groove, a first annular cooling cavity and a second annular cooling cavity are arranged inside the cooling plate, the first annular cooling cavity and the second annular cooling cavity are connected through a drainage hole; the mounting groove is located between the first annular cooling cavity and the second annular cooling cavity; the outer side of the cooling plate is provided with a liquid inlet pipe connected to the first annular cooling cavity, and the outer side of the cooling plate is provided with a liquid outlet pipe connected to the second annular cooling cavity.

[0007] Optionally, the device for preventing welding deformation of a thin-walled cylinder further includes a fixing mechanism for clamping the joint, and the fixing mechanism is slidably disposed inside the notch.

[0008] Optionally, the fixing mechanism includes a T-shaped mounting seat, slide rails are respectively provided on both sides of the mounting seat, two slide grooves are provided at the upper end of the cooling plate, the two slide grooves are respectively provided on both sides of the notch, and the slide rails are slidably set in the slide grooves; the bottom end of the mounting seat extends into the notch, a mounting hole is provided inside the mounting seat, the joint is slidably set in the mounting hole, a tightening screw is provided on the mounting seat, and the tightening screw is extended into the mounting hole.

[0009] Optionally, a locking screw is provided on the mounting seat, and the locking screw passes through the slide rail and can tighten the inner wall of the slide groove.

[0010] Optionally, the device for preventing welding deformation of the thin-walled cylinder barrel further includes an adjusting mechanism, which includes a chassis and a plurality of plug rods evenly distributed on the chassis, and a plurality of slots connected to the mounting groove are evenly distributed on the circumference of one end of the cooling plate, and the plug rods are slidably arranged in the slots; a telescopic mechanism is provided on the outer side of the cooling plate, and the telescopic mechanism is connected to the chassis for driving the telescopic movement of the plug rods.

[0011] Optionally, the telescopic mechanism is an adjusting screw, a hole is opened in the center of the chassis, and the adjusting screw is passed through the chassis; a connecting head is provided inside the cooling plate, a threaded hole is provided inside the connecting head, and the adjusting screw is threadedly connected in the threaded hole.

[0012] Optionally, the telescopic mechanism is a cylinder, and the piston rod of the cylinder is connected to the chassis for transmission.

[0013] Optionally, the cooling plate is provided with fixing screws, which extend into the slots and can tighten the insertion rods.

[0014] Optionally, two cooling plates are arranged opposite to each other, and the two cooling plates are connected to a driving device for transmission, and the driving device can drive the two cooling plates to move closer to or away from each other.

[0015] Optionally, the driving device includes a base, wherein one cooling plate is fixed on the base, a plurality of guide rods are arranged on one side of the base, a hydraulic cylinder is arranged on the base, a fixed block is connected to the end of the telescopic rod of the hydraulic cylinder, the fixed block is fixedly connected to another cooling plate, and the telescopic rod is passed through a through hole of the fixed block.

[0016] The utility model has the following advantages and beneficial effects:

[0017] In the utility model, by structurally designing the cooling plate, the thin-walled cylinder is arranged in the installation groove, and the cooling medium is introduced to cool the inner and outer walls of the thin-walled cylinder synchronously, so that the cooling effect is higher; at the same time, the joint can be inserted through the notch, so that the joint is docked at the opening of the thin-walled cylinder, and the welding operation can be carried out. With such a solution, the thin-walled cylinder can be fully wrapped, clamped and cooled, and the welding operation can be conveniently and quickly realized, the welding deformation can be reduced, and the inner wall of the cylinder does not need to be subjected to secondary finishing, which improves efficiency and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural diagram of the device provided by the utility model;

[0019] Figure 2for Figure 1 Left view of

[0020] Figure 3 for Figure 2 Sectional view along the AA direction;

[0021] Figure 4 for Figure 2 Cross-sectional view along the BB direction;

[0022] Figure 5 The structure of the cooling plate provided by the utility model Figure 1 ;

[0023] Figure 6 The structure of the cooling plate provided by the utility model Figure 2 ;

[0024] Figure 7 for Figure 5 Left view of

[0025] Figure 8 A cross-sectional view of a cooling plate provided by the utility model;

[0026] Fig. 9 A structural diagram of the adjustment mechanism provided by the utility model;

[0027] Fig.10 The structure of the fixing mechanism provided by the utility model Figure 1 ;

[0028] Fig.11 The structure of the fixing mechanism provided by the utility model Figure 2 ;

[0029] Fig.12 A cross-sectional view of two cooling plates provided by the utility model clamping a thin-walled cylinder;

[0030] Fig.13 for Fig.12 A partial enlarged view of point a in the middle;

[0031] Fig.14 A connection structure diagram of two cooling plates and a driving device provided by the utility model;

[0032] Icons: 1-cooling plate, 11-mounting groove, 12-first annular cooling chamber, 121-liquid inlet pipe, 13-second annular cooling chamber, 131-drainage hole, 132-liquid outlet pipe, 14-connector, 141-threaded hole, 15-slot, 16-notch, 17-slide, 18-fixing screw, 2-chassis, 21-insertion rod, 22-adjusting screw, 3-mounting seat, 31-mounting hole, 32-tension screw, 33-slide rail, 34-locking screw, 4-cylinder body, 41-opening, 42-connector, 5-base, 51-guide rod, 6-hydraulic cylinder, 61-telescopic rod, 62-fixing block. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] like Figures 1 to 8 As shown, a device for preventing welding deformation of a thin-walled cylinder includes a cooling plate 1, an annular mounting groove 11 is provided at one end of the cooling plate 1, a notch 16 connected to the mounting groove 11 is provided at the upper end of the cooling plate 1, and a cylinder body 4 is closely arranged in the mounting groove 11. A first annular cooling chamber 12 and a second annular cooling chamber 13 are arranged inside the cooling plate 1, the first annular cooling chamber 12 is located on the outside, and the second annular cooling chamber 13 is arranged on the inside. The first annular cooling chamber 12 and the second annular cooling chamber 13 are connected through a drainage hole 131. The mounting groove 11 is located between the first annular cooling chamber 12 and the second annular cooling chamber 13, and the inner and outer walls of the cylinder body 4 arranged in the mounting groove 11 can be cooled by passing a cooling medium into the first annular cooling chamber 12 and the second annular cooling chamber 13, wherein the cooling medium includes but is not limited to cooling water, wind, and compressed refrigerant. A liquid inlet pipe 121 connected to the first annular cooling chamber 12 is provided on the outside of the cooling plate 1, and a liquid outlet pipe 132 connected to the second annular cooling chamber 13 is provided on the outside of the cooling plate 1.

[0037] With the above structure, the thin-walled cylinder can be clamped and cooled, and then the joint 42 is inserted through the notch 16, and the joint 42 and the thin-walled cylinder body 4 are welded into one. The width of the notch 16 needs to be designed so that the welding gun and other structures can be inserted for welding.

[0038] Example 2

[0039] On the basis of implementation 1, further optimization design is carried out.

[0040] The device for preventing welding deformation of a thin-walled cylinder of the utility model further comprises a fixing mechanism for clamping the joint 42 , and the fixing mechanism is slidably arranged inside the notch 16 .

[0041] like Figures 1 to 11 As shown, specifically, the fixing mechanism includes a T-shaped mounting seat 3, and slide rails 33 are respectively arranged on both sides of the mounting seat 3. Two slide grooves 17 are arranged on the upper end of the cooling plate 1, and the two slide grooves 17 are respectively arranged on both sides of the notch 16, and the slide rails 33 are slidably arranged in the slide grooves 17. The bottom end of the mounting seat 3 extends into the notch 16, and a mounting hole 31 is arranged inside the mounting seat 3. The joint 42 is slidably arranged in the mounting hole 31. A tightening screw 32 is arranged on the mounting seat 3, and the tightening screw 32 extends into the mounting hole 31. A locking screw 34 is arranged on the mounting seat 3, and the locking screw 34 passes through the slide rail 33 and can tighten the inner wall of the slide groove 17.

[0042] After the cylinder body 4 is set in the mounting groove 11, the cylinder body 4 is rotated so that the opening 41 on the cylinder body 4 faces the notch 16. Then the mounting seat 3 is slid, and the position of the mounting seat 3 is adjusted so that the mounting hole 31 of the mounting seat 3 and the opening 41 of the cylinder body 4 are aligned, and then the locking screw 34 is tightened to prevent the mounting seat 3 from sliding. The joint 42 is placed in the mounting hole 31, and the tightening screw 32 is tightened to fix the joint 42 to prevent the joint 42 from sliding during welding. After the fixing is completed, the gun head of the welding gun is placed through the notch 16, and the contact surface of the joint 42 and the cylinder body 4 is welded and fixed.

[0043] Example 3

[0044] In this embodiment, the design is further optimized so that the cooling plate 1 can clamp the cylinder bodies 4 of different lengths for cooling and welding operations.

[0045] like Figures 1 to 8As shown, the device for preventing the welding deformation of the thin-walled cylinder of the utility model also includes an adjusting mechanism, which includes a chassis 2 and a plurality of plug rods 21 evenly distributed on the chassis 2. A plurality of slots 15 connected to the mounting groove 11 are evenly distributed on the circumference of one end of the cooling plate 1, and the plug rods 21 are slidably arranged in the slots 15. A telescopic mechanism is arranged on the outer side of the cooling plate 1, and the telescopic mechanism is connected to the chassis 2, and is used to drive the plug rod 21 to telescopic movement. By controlling the depth of the plug rod 21 inserted into the mounting groove 11, the depth of the cylinder body 4 in the mounting groove 11 can be controlled. With such a design, it is not necessary to cool the entire cylinder body 4. It is only necessary to determine the welding area of ​​the cylinder body 4, insert the cylinder body 4 into the mounting groove 11 appropriately, and adjust the plug rod 21 so that the plug rod 21 extends into the mounting groove 11 and is close to the end of the cylinder body 4, so that the cylinder body 4 near the welding area can be cooled.

[0046] As a preferred embodiment of the present invention, the telescopic mechanism is an adjusting screw 22, a hole is provided at the center of the chassis 2, and the adjusting screw 22 is passed through the chassis 2; a connector 14 is provided inside the cooling plate 1, a threaded hole 141 is provided inside the connector 14, and the adjusting screw 22 is threadedly connected in the threaded hole 141. By rotating the adjusting screw 22, the insertion rod 21 can be driven to telescope.

[0047] As another preferred embodiment of the present invention, the telescopic mechanism is a cylinder, the piston rod of the cylinder is connected to the chassis 2 for transmission, and the telescopic movement of the insertion rod 21 is automatically controlled by the cylinder.

[0048] Furthermore, the cooling plate 1 is provided with a fixing screw 18, which extends into the slot 15 and can tighten the insertion rod 21. The adjustment-completed insertion rod 21 can be tightened and fixed by the fixing screw 18.

[0049] Example 4

[0050] like Fig.12 , 13 As shown in FIG. 14 , in the present invention, two cooling plates 1 are arranged opposite to each other, and the two cooling plates 1 are connected to a driving device for transmission, and the driving device can drive the two cooling plates 1 to move closer to or away from each other.

[0051] As one preferred mode, the driving device includes a base 5, one cooling plate 1 is fixed on the base 5, a plurality of guide rods 51 are arranged on one side of the base 5, a hydraulic cylinder 6 is arranged on the base 5, a fixed block 62 is connected to the end of the telescopic rod 61 of the hydraulic cylinder 6, the fixed block 62 is fixedly connected to another cooling plate 1, and the telescopic rod 61 is passed through the through hole of the fixed block 62. Through the telescopic movement of the hydraulic cylinder 6, the two cooling plates 1 are controlled to approach or move away from each other, the cylinder body 4 is clamped and cooled from both ends, and then the welding operation is performed.

[0052] like Fig.13As shown, after the cylinder body 4 is inserted into the mounting groove 11, its end is tightened by the insertion rod 21. The opening 41 of the cylinder body 4 is opposite to the mounting hole 31 of the mounting seat 3, and a joint 42 (i.e., the air pipe or oil pipe joint of the cylinder body 4) is provided in the mounting hole 31. After the joint 42 and the opening 41 are aligned and contacted, the welding gun can be inserted to perform welding operation.

[0053] The device of the utility model can reduce the welding deformation of the thin-walled cylinder body 4 and the joint 42, and the inner wall of the cylinder body 4 does not need to be subjected to secondary finishing after welding, thereby improving efficiency and reducing costs.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for preventing welding deformation of thin-walled cylinder barrels, characterized in that : It comprises a cooling plate, one end of which is provided with an annular mounting groove, the upper end of which is provided with a notch communicating with the mounting groove, and the mounting groove is closely provided with a cylinder body. A first annular cooling cavity and a second annular cooling cavity are arranged inside the cooling plate, and the first annular cooling cavity and the second annular cooling cavity are connected through a drainage hole; the mounting groove is located between the first annular cooling cavity and the second annular cooling cavity; a liquid inlet pipe connected to the first annular cooling cavity is arranged on the outside of the cooling plate, and a liquid outlet pipe connected to the second annular cooling cavity is arranged on the outside of the cooling plate.

2. The device for preventing welding deformation of thin-walled cylinder barrel according to claim 1, characterized in that: It also includes a fixing mechanism for clamping the joint, and the fixing mechanism is slidably arranged inside the notch.

3. The device for preventing welding deformation of thin-walled cylinder according to claim 2, characterized in that: The fixing mechanism includes a T-shaped mounting seat, slide rails are respectively arranged on both sides of the mounting seat, two slide grooves are arranged on the upper end of the cooling plate, and the two slide grooves are respectively arranged on both sides of the notch, and the slide rails are slidably arranged in the slide grooves; the bottom end of the mounting seat extends into the notch, a mounting hole is arranged inside the mounting seat, the joint is slidably arranged in the mounting hole, and a tightening screw is arranged on the mounting seat, and the tightening screw is extended into the mounting hole.

4. The device for preventing welding deformation of thin-walled cylinder barrel according to claim 3, characterized in that: The mounting seat is provided with a locking screw, which passes through the slide rail and can tighten the inner wall of the slide groove.

5. The device for preventing welding deformation of thin-walled cylinder according to claim 1, characterized in that: It also includes an adjustment mechanism, which includes a chassis and a plurality of insertion rods evenly distributed on the chassis, and a plurality of slots connected to the mounting groove are evenly distributed on the circumference of one end of the cooling plate, and the insertion rods are slidably arranged in the slots; a telescopic mechanism is arranged on the outer side of the cooling plate, and the telescopic mechanism is connected to the chassis for driving the telescopic movement of the insertion rods.

6. The device for preventing welding deformation of thin-walled cylinder barrel according to claim 5, characterized in that: The telescopic mechanism is an adjusting screw, a hole is opened in the center of the chassis, and the adjusting screw is passed through the chassis; a connecting head is arranged inside the cooling plate, a threaded hole is arranged inside the connecting head, and the adjusting screw is threadedly connected in the threaded hole.

7. The device for preventing welding deformation of thin-walled cylinder barrel according to claim 5, characterized in that: The telescopic mechanism is a cylinder, and the piston rod of the cylinder is connected to the chassis for transmission.

8. The device for preventing welding deformation of thin-walled cylinder barrel according to claim 5, characterized in that: The cooling plate is provided with fixing screws, which extend into the slots and can tighten the insertion rods.

9. The device for preventing welding deformation of thin-walled cylinder barrel according to claim 1, characterized in that: There are two cooling plates arranged opposite to each other, and the two cooling plates are connected to a driving device for transmission, and the driving device can drive the two cooling plates to move closer to or farther from each other.

10. The device for preventing welding deformation of thin-walled cylinder barrel according to claim 9, characterized in that: The driving device includes a base, wherein one cooling plate is fixed on the base, a plurality of guide rods are arranged on one side of the base, a hydraulic cylinder is arranged on the base, a fixed block is connected to the end of the telescopic rod of the hydraulic cylinder, the fixed block is fixedly connected to another cooling plate, and the telescopic rod is passed through the through hole of the fixed block.

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