A pipe welding auxiliary tooling mechanism for a calcium carbide production line

Abstract

This utility model relates to the field of auxiliary installation tooling technology for pipelines, and in particular to an auxiliary tooling mechanism for welding pipelines in a calcium carbide production line. It includes a base frame, parallel slide rails, a fixed clamping part, a movable clamping part, and an auxiliary lifting support. The bottom of the base frame is arranged on the working ground. A parallel slide rail is provided on the base frame and is bolted to the base frame. The bottom of the fixed clamping part is fixedly located on one side of the base frame for clamping and positioning the pipeline. A movable clamping part, also for clamping and positioning the pipeline, is located on the other side of the base frame. In practical use, it enables rapid alignment and adjustment of pipelines used in calcium carbide production lines, effectively meeting the welding needs of pipelines in calcium carbide production lines and reducing the labor intensity of installation personnel.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary installation tooling technology for pipelines, and in particular to an auxiliary tooling mechanism for pipeline welding in a calcium carbide production line. Background Technology

[0002] Calcium carbide is a yellowish-brown or black lumpy solid that reacts with water to produce acetylene. Calcium carbide is a fundamental raw material in the organic synthesis chemical industry and an important raw material in acetylene chemistry. Acetylene produced from calcium carbide is widely used in metal welding and cutting. A calcium carbide production line is a dedicated production line for calcium carbide production. During installation, the related water and gas pipelines need to be butt-welded. Currently, in existing calcium carbide production lines, ensuring the coaxiality of the butt-welded pipelines (especially large pipelines) requires a large number of installation personnel to coordinate and adjust the pipelines in place. This not only consumes time but also significantly increases the workload of the installation personnel, affecting the overall installation efficiency of the calcium carbide production line. Utility Model Content

[0003] The main purpose of this invention is to provide an auxiliary tooling mechanism for welding pipes in a calcium carbide production line. In practical use, it can quickly align and adjust the pipes in the calcium carbide production line, effectively meeting the needs of butt welding operations for the pipes in the calcium carbide production line. At the same time, it reduces the labor intensity of installation personnel and meets the needs of on-site butt welding of pipes in the calcium carbide production line.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pipe welding auxiliary tooling mechanism for a calcium carbide production line includes a base frame, a parallel slide rail, a fixed clamping part, a movable clamping part, and an auxiliary lifting support.

[0006] The bottom of the base frame is arranged on the working ground; a parallel slide rail is provided on the base frame, and the parallel slide rail is connected to the base frame by bolts.

[0007] The bottom of the fixed clamping part is fixedly installed on one side of the base frame for clamping and positioning the pipe. A movable clamping part for clamping and positioning the pipe is provided on the other side of the base frame. The bottom of the movable clamping part slides in contact with the parallel slide rail.

[0008] At least two sets of auxiliary lifting supports are provided on the parallel slide rail. The lower part of the auxiliary lifting support slides in contact with the parallel slide rail, and the auxiliary lifting support is used to adjust the pipe by lifting.

[0009] The base frame includes a first track support, a second track support, a connecting frame, and a foot fixing component; the first track support and the second track support are arranged in parallel, the connecting frame is installed between the first track support and the second track support, and the connecting frame is fixedly connected to the first track support and the second track support respectively, and a foot fixing component is fixedly installed on the outside of the connecting frame.

[0010] Furthermore, a movable slider is installed and connected to the lower part of the movable clamping part, and the movable slider is slidably engaged on the parallel slide rail.

[0011] The fixed clamping part and the movable clamping part have the same structure, both including a fixed support, a mounting frame, a mounting collar, and a clamping unit. The mounting frame is mounted on the fixed support and fixedly connected to the fixed support. The mounting collar is mounted on the mounting frame and has a circular through hole adapted to allow the pipe to pass through. The clamping unit is installed around the circular through hole to clamp and position the pipe.

[0012] The clamping unit includes a clamping cylinder, a cylinder push rod, and a clamping block. The clamping cylinder is installed around the circular through hole, and a cylinder push rod is installed on the clamping cylinder. The clamping block is installed on the outer end of the cylinder push rod for contact clamping and positioning of the pipe.

[0013] The auxiliary lifting support includes a movable frame, an adjusting screw, a first scissor assembly, and a second scissor assembly. An adjusting slider is installed at the bottom of the movable frame and is slidably engaged with a parallel slide rail. The adjusting screw is mounted on the movable frame via bearings on both sides. The first and second scissor assemblies are hinged together. Threaded sleeves with opposite thread directions are installed at the bottom of both the first and second scissor assemblies. These threaded sleeves are mounted on the adjusting screw via threaded engagement. An adjusting handwheel is installed at the end of the adjusting screw.

[0014] The first and second scissor sets have the same structure, each including a movable base, a scissor frame, a roller shaft, and a support roller. The movable base is connected to a threaded sleeve, the lower side of the scissor frame is rotatably connected to the movable base, a roller shaft is installed on the upper part of the scissor frame, and the support roller is mounted on the roller shaft through a bearing.

[0015] The overall structural design of the auxiliary tooling mechanism for pipe welding in the calcium carbide production line of this utility model is scientific, and it has the following technical features and advantages in practical use:

[0016] 1. It can achieve rapid coaxial alignment of pipes used in large calcium carbide production lines; When using the welding auxiliary tooling mechanism of this utility model, the pipe to be welded can be placed on the support rollers of the auxiliary lifting support. The operator can adjust the adjusting screw to drive the upper part of the first scissor group and the second scissor group to open and close, thereby adjusting the support height of the support rollers on the pipe, thus meeting the requirement of rapid coaxial alignment of pipes used in large calcium carbide production lines.

[0017] 2. It can achieve clamping and positioning of the pipeline; the fixed clamping part and the movable clamping part of this utility model are provided with an installation collar and a clamping unit. When in use, the pipeline can enter the circular through hole on the installation collar. The clamping unit is arranged around the circular through hole. The clamping cylinder in the clamping unit can drive the cylinder push rod to drive the clamping block to clamp and position the pipeline, so as to ensure the stability of the pipeline welding process and ensure the welding quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the auxiliary tooling mechanism for pipe welding of this utility model;

[0019] Figure 2 This is a schematic diagram of the base frame in this utility model;

[0020] Figure 3 This is a structural schematic diagram of the fixed clamping part and the movable clamping part in this utility model;

[0021] Figure 4 This is a schematic diagram of the clamping unit in this utility model;

[0022] Figure 5 This is a schematic diagram of the auxiliary lifting support in this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the first and second scissor groups in this utility model;

[0024] The numbers in the diagram are as follows: 1-Base frame, 2-Parallel slide rail, 3-Fixed clamping part, 4-Moving clamping part, 5-Auxiliary lifting support, 6-Moving pipe, 7-Fixed pipe; 11-First track support, 12-Second track support, 13-Connecting frame, 14-Foot fixing part; 31-Fixed support, 32-Mounting frame, 33-Mounting collar, 34-Clamping unit; 341-Clamping cylinder, 342-Cylinder push rod, 343-Clamping block; 51-Moving frame, 52-Adjusting screw, 53-First scissor assembly, 54-Second scissor assembly; 531-Moving seat, 532-Scissor frame, 533-Roller shaft, 534-Support roller. Detailed Implementation

[0025] Specific Embodiment 1: As shown in the appendix to the specification of this utility model. Figure 1 As shown, to address the problems of time-consuming and labor-intensive adjustments during the coaxial welding of pipelines in existing calcium carbide production lines, which negatively impacts the overall installation efficiency of the production line, this utility model designs and provides an auxiliary tooling mechanism for pipeline welding in calcium carbide production lines. It mainly includes a base frame 1, a parallel slide rail 2, a fixed clamping part 3, a movable clamping part 4, and an auxiliary lifting support 5. The base frame 1 primarily supports the parallel slide rail 2 and the fixed clamping part 3. During installation, the bottom of the base frame 1 is placed on the working ground. The parallel slide rail 2 is installed on the base frame 1, and it supports and guides the movable clamping part 4 and the auxiliary lifting support 5. The parallel slide rail 2 is bolted to the base frame 1. The bottom of the fixed clamping part 3 is fixedly set on one side of the base frame 1 for clamping and positioning the butt-welded pipe. On the other side of the base frame 1, a movable clamping part 4 is also provided for clamping and positioning the butt-welded pipe. The bottom of the movable clamping part 4 is in sliding contact with the parallel slide rail 2. In order to ensure the support adjustment needs when adjusting the pipe, at least two sets of auxiliary lifting supports 5 are provided on the parallel slide rail 2. The lower part of the auxiliary lifting support 5 is in sliding contact with the parallel slide rail 2, and the auxiliary lifting support 5 is used for lifting and adjusting the pipe. It should be noted that a movable slider is installed and connected to the lower part of the movable clamping part 4. The movable slider is slidably engaged on the parallel slide rail 2.

[0026] As per the specification attached to this utility model Figure 2 As shown, the base frame 1 for supporting the installation of the parallel slide rail 2 and the fixing clamping part 3 includes a first track support 11, a second track support 12, a connecting frame 13, and a foot fixing member 14. The first track support 11 and the second track support 12 are used to support the installation of the parallel slide rail 2. During installation, the first track support 11 and the second track support 12 are arranged in parallel. The connecting frame 13 is installed between the first track support 11 and the second track support 12, and the connecting frame 13 is fixedly connected to the first track support 11 and the second track support 12 respectively. The foot fixing member 14 is fixedly installed on the outside of the connecting frame 13.

[0027] As per the specification attached to this utility model Figure 3As shown, the fixed clamping part 3 and the movable clamping part 4 used for clamping and positioning the butt-welded pipe have the same structure. Both include a fixed support 31, a mounting frame 32, a mounting collar 33, and a clamping unit 34. The fixed support 31 is used to support the mounting frame 32. During installation, the mounting frame 32 is mounted on the fixed support 31 and fixedly connected to the fixed support 31. The mounting collar 33 is installed on the mounting frame 32. The mounting collar 33 has a circular through hole adapted to the pipe. The clamping units 34 are evenly distributed around the circular through hole for clamping and positioning the pipe.

[0028] As per the specification attached to this utility model Figure 4 As shown, the clamping unit 34 for clamping and positioning the pipeline includes a clamping cylinder 341, a cylinder push rod 342, and a clamping block 343. The clamping cylinder 341 is used to drive the cylinder push rod 342 to extend and retract. During installation, the clamping cylinders 341 are evenly distributed around the circular through hole. The cylinder push rod 342 is installed on the clamping cylinder 341. The clamping block 343 is installed on the outer end of the cylinder push rod 342 for contact clamping and positioning the pipeline.

[0029] As per the specification attached to this utility model Figure 5 As shown, the auxiliary lifting support 5 used for lifting and adjusting the pipeline includes a movable frame 51, an adjusting screw 52, ​​a first scissor assembly 53, and a second scissor assembly 54. The movable frame 51 drives the first scissor assembly 53 and the second scissor assembly 54 to adjust their parallel displacement on the parallel slide rail 2. An adjusting slider is installed at the bottom of the movable frame 51, and the adjusting slider is slidably engaged on the parallel slide rail 2. The adjusting screw 52 is mounted on the movable frame 51 on both sides via bearings and is used to adjust the opening and closing of the first scissor assembly 53 and the second scissor assembly 54. The first scissor assembly 53 and the second scissor assembly 54 are hinged by a rotating pin. Threaded sleeves with opposite thread directions are respectively installed at the bottom of the first scissor assembly 53 and the second scissor assembly 54. The threaded sleeves are installed on the adjusting screw 52 via threaded engagement. An adjusting handwheel is installed at the end of the adjusting screw 52 to drive its rotation and adjustment.

[0030] As per the specification attached to this utility model Figure 6As shown, the first scissor assembly 53 and the second scissor assembly 54, used for pipe contact support and height adjustment, have the same structure. Both include a movable base 531, a scissor frame 532, a roller shaft 533, and a support roller 534. The lower two sides of the movable base 531 are slidably engaged with the movable frame 51. During installation, the bottom of the movable base 531 is connected to the threaded sleeve. The lower side of the scissor frame 532 is rotatably connected to the movable base 531. The roller shaft 533 is installed on the upper part of the scissor frame 532. The support roller 534 is mounted on the roller shaft 533 through bearings for contact support with the outer wall of the pipe.

[0031] The installation and use process of the pipe welding auxiliary tooling mechanism for calcium carbide production lines provided by this utility model is as follows:

[0032] I. The installation process is as follows:

[0033] First, the installer can install the base frame 1. Specifically, the first track support 11 and the second track support 12 can be arranged in parallel. The connecting frame 13 is fixedly installed between the first track support 11 and the second track support 12. Anchor fasteners 14 are fixedly installed on the outside of the connecting frame 13. Parallel slide rails 2 are installed on the first track support 11 and the second track support 12. A movable slider is engaged on the parallel slide rails 2. Then, clamping parts (moving clamping part 4 and fixed clamping part 3) are installed on the movable slider and the base frame 1. Specifically, the bottom of the mounting frame 32 is fixedly installed on the fixed support 31. An mounting collar 33 is installed on the mounting frame 32, and a circular through hole is opened on the mounting collar 33. Then, clamping units 34 are evenly distributed around the circular through hole. Specifically, clamping cylinders 341 are evenly distributed around the circular through hole. A cylinder push rod 342 is installed on the clamping cylinder 341. A clamping block 343 is installed on the outer end of the cylinder push rod 342 for contact clamping and positioning of the pipeline. Finally, the auxiliary lifting support 5 is installed. Specifically, the adjusting slider is engaged on the parallel slide rail 2, the bottom of the moving frame 51 is installed on the adjusting slider, and the two sides of the adjusting screw 52 are installed on the moving frame 51 through bearings. Two sets of threaded sleeves are installed on the adjusting screw 52, ​​and the first scissor group 53 and the second scissor group 54 are installed on the two sets of threaded sleeves respectively. The scissor frame 532 in the first scissor group 53 and the second scissor group 54 can be hinged by a rotating pin. Then, the bottom of the moving seat 531 is connected to the threaded sleeve, and the lower side of the scissor frame 532 is rotatably connected to the moving seat 531. A roller shaft 533 is installed on the upper part of the scissor frame 532, and the support roller 534 is installed on the roller shaft 533 through bearings for contact support with the outer wall of the pipeline. Thus, the installation process of this utility model is completed.

[0034] II. The work process is as follows:

[0035] In practical operation, the operator can use external hoisting equipment to place the pipes to be welded (divided into fixed pipes 7 and movable pipes 6) onto the auxiliary lifting support 5 on the parallel slide rail 2. First, the auxiliary lifting support 5 near the fixed clamping part 3 can be adjusted to adjust the height of the fixed pipe. Specifically, the adjusting handwheel can be rotated, which drives the adjusting screw 52 to rotate. The adjusting screw 52 engages with two sets of threaded sleeves with opposite directions of rotation. At this time, under the action of the threaded pushing force, the two sets of threaded sleeves on the adjusting screw 52 will move relative to or away from each other on the adjusting screw 52. When the two sets of threaded sleeves move relative to each other, the two sets of threaded sleeves... This will cause the lower parts of the first scissor group 53 and the second scissor group 54 to move closer together. At this time, the upper parts of the first scissor group 53 and the second scissor group 54 will be raised, and the support roller 534 on the upper part of the scissor frame 532, along with the pipe it supports, will be raised. When the two sets of threaded sleeves move in opposite directions, the two sets of threaded sleeves will cause the lower parts of the first scissor group 53 and the second scissor group 54 to move away from each other. At this time, the upper parts of the first scissor group 53 and the second scissor group 54 will move downward, and the support roller 534 on the upper part of the scissor frame 532, along with the pipe it supports, will move downward. When the height of the pipe is adjusted to match the position of the circular through hole on the fixed clamping part 3, the operator can... By pushing the auxiliary lifting support 5 along with the pipe it supports towards the fixed clamping part 3, once one side of the pipe passes through the circular through hole, the operator can control the clamping cylinder 341 in the fixed clamping part 3 to operate. The clamping cylinder 341 drives the cylinder push rod 342 to extend outward, and the cylinder push rod 342 drives the clamping block 343 to clamp the pipe. At this time, the fixing and clamping action of the fixed pipe 7 is completed. Then, the operator can adjust the movable pipe 6 near the movable clamping part 4. The adjustment process of the movable pipe 6 is the same as the adjustment process of the fixed pipe 7, and will not be repeated here. When the axis of the movable pipe 6 is aligned with the axis of the fixed pipe 7, The operator can push the auxiliary lifting support 5 to move the movable pipe 6 towards the fixed pipe 7. When the end face of the movable pipe 6 contacts the end face of the fixed pipe 7, the operator can perform butt welding. Simultaneously, to ensure the stability of the movable pipe 6, the operator can push the movable clamping part 4 towards the movable pipe 6. After the end of the movable pipe 6 passes through the circular through hole on the movable clamping part 4, the operator can control the clamping cylinder 341 on the movable clamping part 4 to drive the cylinder push rod 342 to extend outward. The cylinder push rod 342 drives the clamping block 343 to tighten the movable pipe 6, thus ensuring the stability of the butt welding operation between the movable pipe 6 and the fixed pipe 7. The above describes the basic principles, main features, and advantages of this utility model.Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A pipe welding auxiliary tooling mechanism for a calcium carbide production line, characterized in that, It includes a base frame (1), a parallel slide rail (2), a fixed clamping part (3), a movable clamping part (4), and an auxiliary lifting support (5); The bottom of the base frame (1) is arranged on the working ground; a parallel slide rail (2) is provided on the base frame (1), and the parallel slide rail (2) is connected to the base frame (1) by bolts; The bottom of the fixed clamping part (3) is fixedly set on one side of the base frame (1) for clamping and positioning the pipe. A movable clamping part (4) for clamping and positioning the pipe is set on the other side of the base frame (1). The bottom of the movable clamping part (4) slides in contact with the parallel slide rail (2). At least two sets of auxiliary lifting supports (5) are provided on the parallel slide rail (2). The lower part of the auxiliary lifting support (5) slides in contact with the parallel slide rail (2), and the auxiliary lifting support (5) is used to adjust the pipe by lifting.

2. The auxiliary tooling mechanism for pipe welding in a calcium carbide production line according to claim 1, characterized in that, The base frame (1) includes a first track support (11), a second track support (12), a connecting frame (13), and a foot fixing component (14); the first track support (11) and the second track support (12) are arranged in parallel, the connecting frame (13) is installed between the first track support (11) and the second track support (12), and the foot fixing component (14) is fixedly installed on the outside of the connecting frame (13).

3. The auxiliary tooling mechanism for pipe welding in a calcium carbide production line according to claim 1, characterized in that, The fixed clamping part (3) and the movable clamping part (4) have the same structure. They both include a fixed support (31), a mounting frame (32), a mounting collar (33), and a clamping unit (34). The mounting frame (32) is mounted on the fixed support (31), and the mounting collar (33) is mounted on the mounting frame (32). A circular through hole for the pipe to pass through is opened on the mounting collar (33), and the clamping unit (34) is installed around the circular through hole.

4. The auxiliary tooling mechanism for pipe welding in a calcium carbide production line according to claim 3, characterized in that, The clamping unit (34) includes a clamping cylinder (341), a cylinder push rod (342), and a clamping block (343). The clamping cylinder (341) is installed around the circular through hole. The cylinder push rod (342) is installed on the clamping cylinder (341). The clamping block (343) is installed on the outer end of the cylinder push rod (342) for contact clamping and positioning of the pipe.

5. The auxiliary tooling mechanism for pipe welding in a calcium carbide production line according to claim 1, characterized in that, The auxiliary lifting support (5) includes a movable frame (51), an adjusting screw (52), a first scissor assembly (53), and a second scissor assembly (54). An adjusting slider is installed at the bottom of the movable frame (51), and the adjusting slider is slidably engaged on the parallel slide rail (2). The adjusting screw (52) is mounted on the movable frame (51) on both sides through bearings. The first scissor assembly (53) and the second scissor assembly (54) are hinged together. Threaded sleeves with opposite thread directions are installed at the bottom of the first scissor assembly (53) and the second scissor assembly (54). The threaded sleeves are installed on the adjusting screw (52) through thread engagement.

6. The auxiliary tooling mechanism for pipe welding in a calcium carbide production line according to claim 5, characterized in that, The first scissor group (53) and the second scissor group (54) have the same structure, and both include, The moving base (531), the scissor frame (532), the roller shaft (533), and the support roller (534) are provided. The moving base (531) is connected to the threaded sleeve. The lower side of the scissor frame (532) is rotatably connected to the moving base (531). The roller shaft (533) is installed on the upper part of the scissor frame (532). The support roller (534) is mounted on the roller shaft (533) through a bearing.

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