Welding device for furnace roller end pipe shaft head assembly

Abstract

The utility model discloses a welding device for a furnace roller end pipe shaft head assembly. A workpiece fixing mechanism comprises a reduction gearbox, a motor and a chuck which are arranged between a left vertical plate and a right vertical plate. The left and right sides of the reduction gearbox are connected with the corresponding vertical plates through supporting shafts respectively. The transverse supporting plate is fixedly connected with a transmission rod pipe sleeve through a supporting plate. The worm gear is fixed to the left supporting shaft, the transmission rod is rotationally connected with the transmission rod pipe sleeve, and the transmission rod is connected with a worm in transmission fit with the worm gear. The welding machine mechanism comprises a welding station adjusting assembly and a welding gun base installed on the welding station adjusting assembly. The smoke dust collecting mechanism comprises a smoke dust collecting pipe and a smoke dust collecting cover located at the end of the smoke dust collecting pipe, and the smoke dust collecting pipe is installed on the smoke dust collecting position adjusting assembly. The whole equipment is more compact, the direction of the welding gun and the direction of the smoke collecting cover are adjusted more conveniently, and the welding operation efficiency and the welding seam quality are higher.

Description

Technical Field

[0001] The utility model relates to a welding device, in particular to a welding device for an end pipe and an axle head assembly. Background Art

[0002] The end tube and the shaft head are the two circular components of the furnace roller. After they are assembled, they need to be welded. Traditionally, welding the end tube and shaft head of the furnace roller is done manually using circular welding. This traditional method is labor-intensive, inefficient, and difficult to ensure weld quality, making it difficult to meet the requirements of industrial mass production.

[0003] On the other hand, in existing furnace roller end tube and shaft head welding equipment, the welding station adjustment mechanism (usually the welding gun holder) and the workpiece fixing mechanism are independent of each other. After the workpiece is fixed, the welding gun holder needs to be moved closer to the workpiece. Not only does the welding station adjustment mechanism occupy space in the workshop, causing congestion, but it also makes it difficult to adjust the welding gun's position, affecting work efficiency.

[0004] Thirdly, in the existing furnace roller end tube and shaft head welding device, the smoke collection pipe in the matching smoke collection device also requires a separate bracket, which also has the problem of occupying workshop space, and the position and direction adjustment of the smoke collection cover is not convenient enough. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a welding device for a furnace roller end tube shaft head assembly, which has the characteristics of small footprint and convenient adjustment.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A welding device for a furnace roller end tube shaft head assembly includes a workpiece fixing mechanism, a welding machine mechanism and a smoke and dust collecting mechanism. The workpiece fixing mechanism includes a cross brace plate, the two ends of which are fixedly connected to a left vertical plate and a right vertical plate respectively; a reduction gearbox is provided between the left vertical plate and the right vertical plate, the lower end of the reduction gearbox is connected to a motor for transmission, and the upper end is connected to a chuck for transmission; an electric control box is fixedly installed on the outer side of the left vertical plate; the left and right sides of the reduction gearbox are connected to the left vertical plate and the right vertical plate respectively through support shafts; the cross brace plate is fixedly connected to a transmission rod pipe sleeve through a support plate; the workpiece fixing mechanism also includes a fixed plate fixed to the left support shaft The welding machine mechanism includes a welding station adjustment component and a welding gun seat installed on the welding station adjustment component and used for clamping the welding gun; the smoke collection mechanism includes a smoke collection pipe and a smoke collection cover located at the end of the smoke collection pipe, and the smoke collection pipe is installed on the smoke collection position adjustment component; the welding station adjustment component is connected to the outer side of the right vertical plate through the base plate; the smoke collection position adjustment component is connected to the electric control box or the left vertical plate through the support frame.

[0008] Preferably, the welding station adjustment assembly includes a Z-direction pillar whose lower end is fixed to the base plate; the Z-direction pillar is connected to the Y-direction pillar through a Z-direction sleeve, and the Y-direction pillar is connected to the X-direction pillar through a Y-direction pipe clamp and an X-direction pipe clamp fixed to each other; the inner end of the X-direction pillar is connected to the welding gun holder.

[0009] Preferably, the smoke collection position adjustment assembly includes a hinge support mounted on the support frame; the hinge support is connected to a fixing ring via a hinge shaft and a connecting rod; the smoke collection pipe is a flexible pipe and its end is positioned by the fixing ring.

[0010] The positive effect of this utility model lies in its integration of the workpiece fixing mechanism, welding station adjustment assembly, and fume collection position adjustment assembly. These components no longer occupy separate floor space in the workshop, making the overall equipment more compact, and making it easier to adjust the welding gun and fume collection hood positions. This improves welding efficiency and weld quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the workpiece fixing mechanism in the embodiment of the present utility model. Figure 1 On the basis of the above, this figure omits the welding machine mechanism, the left vertical plate, and the electric control box and the fume collection mechanism installed on the left vertical plate.

[0013] Description of reference numerals:

[0014] 1. Left vertical plate; 2. Cross brace; 3. Cable; 4. Motor; 5. Right vertical plate; 6. Base plate; 7. Welding machine mechanism; 7-1. Z-axis support; 7-2. X-axis pipe clamp; 7-3. Y-axis support; 7-4. X-axis support; 7-5. Y-axis pipe clamp locking bolt; 7-6. Z-axis sleeve; 7-7. Jackscrew handwheel; 7-8. Welding gun; 7-9. Welding gun holder; 7-10. Welding gun holder locking bolt; 7-11. X-axis pipe clamp locking bolt; 7-12. Y-axis pipe clamp; 8 , chuck; 9, reduction gear box; 10, smoke collecting mechanism; 10-1, first connecting rod; 10-2, second connecting rod; 10-3, third connecting rod; 10-4, fourth connecting rod; 10-5, support frame; 10-6, hinge support; 10-7, smoke collecting cover; 10-8, fixing ring; 10-9, smoke collecting pipe; 11, electric control box; 12, support shaft; 13, worm gear; 14, worm; 15, support plate; 16, transmission rod; 17, transmission rod sleeve. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 The embodiment of the present invention includes a workpiece securing mechanism, a welding mechanism 7, and a fume collection mechanism 10. The workpiece securing mechanism comprises a front and rear cross brace 2, each of which is fixedly connected to the left and right vertical panels 1 and 5 at their respective ends. A reduction gearbox 9 is disposed between the left and right vertical panels 1 and 5. The lower end of the reduction gearbox 9 is connected to a motor 4, and the upper end is connected to a three-jaw chuck 8. An electrical control box 11 is fixedly mounted on the outer side of the left vertical panel 1 and connected to the motor 4 via a cable 3. During use, the lower end of the end pipe shaft assembly, which serves as the workpiece, is fixed to the chuck 8. The electrical control box 11 controls the motor 4 to drive the reduction gearbox 9, which in turn drives the chuck 8 to rotate with the workpiece. The welding mechanism 7 is connected to the outer side of the right vertical panel 5 via a base plate 6. The fume collection mechanism 10 is connected to the electrical control box 11 via a support frame 10-5. The support frame 10-5 can also be directly connected to the left vertical panel 1.

[0017] Combine Figure 2 The left and right sides of the reduction box 9 are respectively connected to the left vertical plate 1 and the right vertical plate 5 through a support shaft 12. Specifically, the inner end of the support shaft 12 is fixed to the reduction box 9, and the outer end is mounted on the corresponding left vertical plate 1 or right vertical plate 5 through a bearing.

[0018] A support plate 15 is fixedly mounted on the cross brace 2, and a drive rod sleeve 17 is fixedly mounted on the support plate 15. The workpiece fixing mechanism also includes a worm gear 13 fixed to the left support shaft 12, and a drive rod 16 that passes through the drive rod sleeve 17 and is rotatably connected to the drive rod sleeve 17. The drive rod 16 is connected to a worm 14 that is in driving engagement with the worm gear 13. A control handwheel is connected to the outer end of the drive rod 16. Rotating the control handwheel drives the worm 14 to rotate, thereby driving the worm gear 13 and the left support shaft 12 to rotate, driving the reduction gear 9, motor 4, chuck 8, and the workpiece to synchronously tilt and flip. After the workpiece flips to the appropriate welding angle, it is locked in place by the worm gear.

[0019] Still Figure 1 The welding mechanism 7 includes a welding station adjustment assembly and a welding gun holder 7-9 mounted thereon for holding a welding gun 7-8. The welding station adjustment assembly includes a Z-axis support 7-1, the lower end of which is fixed to the base plate 6. The Z-axis support 7-1 is connected to a Y-axis support 7-3 via a Z-axis sleeve 7-6. The Y-axis support 7-3 is connected to an X-axis support 7-4 via a Y-axis pipe clamp 7-12 and an X-axis pipe clamp 7-2. The inner end of the X-axis support 7-4 is connected to the welding gun holder 7-9.

[0020] Specifically, a Z-direction sleeve 7-6, which can slide up and down along the Z-direction support 7-1 and rotate around the Z-direction support 7-1, is welded to the inner end of the Y-direction support 7-3. After the up and down sliding and rotating are in place, the Y-direction support 7-3 is positioned by tightening a jackscrew passing through the Z-direction sleeve 7-6. The outer end of the jackscrew is connected to a jackscrew handwheel 7-7.

[0021] Specifically, the Y-direction pipe clamp 7-12 and the X-direction pipe clamp 7-2 are welded to each other, aligning the axes of the Y-direction support 7-3 and the X-direction support 7-4 perpendicularly. The Y-direction pipe clamp 7-12 and the X-direction pipe clamp 7-2 are respectively mounted with a Y-direction pipe clamp locking bolt 7-5 and an X-direction pipe clamp locking bolt 7-11. When the pipe clamp locking bolts are loosened, the Y-direction pipe clamp 7-12 and the X-direction pipe clamp 7-2 can rotate around the Y-direction support 7-3 and the X-direction support 7-4, respectively, or slide along the Y-direction support 7-3 and the X-direction support 7-4, respectively. Once fully rotated or slid, the pipe clamp locking bolts are tightened to achieve positioning.

[0022] Specifically, the welding gun seat 7-9 includes two clamping plates for clamping the welding gun 7-8, and the welding gun 7-8 can be loosened or clamped by adjusting the welding gun seat locking bolt 7-10 passing through the two clamping plates.

[0023] Still Figure 1The smoke collection mechanism 10 includes a smoke collection pipe 10-9 and a smoke collection cover 10-7 located at the end of the smoke collection pipe 10-9. The smoke collection pipe 10-9 is installed on the smoke collection position adjustment component. The smoke collection position adjustment component includes a hinge support 10-6 located and installed on the support frame 10-5. The hinge support 10-6 is connected to the first connecting rod 10-1 through a hinge shaft, the upper end of the first connecting rod 10-1 is connected to the second connecting rod 10-2 through a hinge shaft, the upper end of the second connecting rod 10-2 is connected to the third connecting rod 10-3 through a hinge shaft, the upper end of the third connecting rod 10-3 is connected to the fourth connecting rod 10-4 through a hinge shaft, and the outer end of the fourth connecting rod 10-4 is fixedly connected to a fixing ring 10-8. The smoke collection pipe 10-9 is in the form of a flexible tube and its end is positioned by the fixing ring 10-8.

[0024] When in use, the smoke collection pipe 10-9 is connected to the smoke collection box, the smoke collection cover 10-7 is facing the welding part, and the induced draft fan is used to suck the smoke around the welding part into the smoke collection box.

[0025] The motor 4 is a variable frequency motor, and the electric control box 11 is a frequency converter control box. The speed of the motor 4 can be adjusted by adjusting the frequency of the frequency converter.

[0026] The operating steps of this utility model are as follows:

[0027] First, loosen the chuck 8, lift the end tube shaft head assembly to the top of the workpiece fixing mechanism with a small crane, and fix the lower end of the workpiece (i.e., the end tube shaft head assembly) with the chuck 8. Start the controller of the electric control box 11 to make the workpiece enter the rotation state, and adjust the rotation speed of the chuck 8 to match the welding speed. Adjust the smoke collection position adjustment component so that the smoke collection cover 10-7 is close to and facing the welding part, and start the smoke collection mechanism 10 to make it work normally. Adjust the welding position adjustment component so that the welding gun 7-8 is close to and aimed at the welding part, start the welding machine mechanism 7 to start welding the girth weld until the 360° welding is completed. Loosen the chuck 8, use the small crane to lift the workpiece away, and place it in the designated position. This welding is completed. Repeat the above steps to weld other assemblies.

Claims

1. A welding device for a furnace roller end tube shaft head assembly, comprising a workpiece fixing mechanism, a welding machine mechanism (7) and a smoke collecting mechanism (10), characterized in that: The workpiece fixing mechanism comprises a cross brace (2), the two ends of which are fixedly connected to a left vertical plate (1) and a right vertical plate (5); a reduction gear (9) is provided between the left vertical plate (1) and the right vertical plate (5), the lower end of the reduction gear (9) is connected to a motor (4) in a transmission manner, and the upper end is connected to a chuck (8); an electric control box (11) is fixedly installed on the outer side of the left vertical plate (1); the left and right sides of the reduction gear (9) are connected to the left vertical plate (1) and the right vertical plate (5) via a support shaft (12); the cross brace (2) is fixedly connected to a transmission rod sleeve (17) via a support plate (15); the workpiece fixing mechanism further comprises a worm gear (13) fixed to the left support shaft (12) and a transmission rod rotatably connected to the transmission rod sleeve (17). (16), the transmission rod (16) is connected to a worm (14) that is in transmission engagement with the worm gear (13); the welding machine mechanism (7) includes a welding station adjustment component and a welding gun seat (7-9) mounted on the welding station adjustment component and used for clamping the welding gun (7-8); the smoke collection mechanism (10) includes a smoke collection pipe (10-9) and a smoke collection cover (10-7) located at the end of the smoke collection pipe (10-9), and the smoke collection pipe (10-9) is mounted on the smoke collection position adjustment component; the welding station adjustment component is connected to the outer side of the right vertical plate (5) through the base plate (6); the smoke collection position adjustment component is connected to the electric control box (11) or the left vertical plate (1) through the support frame (10-5).

2. The welding device for the furnace roller end tube shaft head assembly according to claim 1, characterized in that: The welding station adjustment assembly comprises a Z-direction support (7-1) whose lower end is fixed to the base plate (6); the Z-direction support (7-1) is connected to a Y-direction support (7-3) via a Z-direction sleeve (7-6); the Y-direction support (7-3) is connected to an X-direction support (7-4) via a Y-direction pipe clamp (7-12) and an X-direction pipe clamp (7-2) fixed to each other; and the inner end of the X-direction support (7-4) is connected to the welding gun seat (7-9).

3. The welding device for the furnace roller end tube shaft head assembly according to claim 1 or 2, characterized in that: The smoke collection position adjustment assembly comprises a hinge support (10-6) mounted on the support frame (10-5); the hinge support (10-6) is connected to a fixing ring (10-8) via a hinge shaft and a connecting rod; the smoke collection pipe (10-9) is a flexible pipe and its end is positioned by the fixing ring (10-8).

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