CN214212770U - Small-sized barrel connecting pipe flange positioning and clamping device - Google Patents
Small-sized barrel connecting pipe flange positioning and clamping device Download PDFInfo
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- CN214212770U CN214212770U CN202023261359.4U CN202023261359U CN214212770U CN 214212770 U CN214212770 U CN 214212770U CN 202023261359 U CN202023261359 U CN 202023261359U CN 214212770 U CN214212770 U CN 214212770U
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Abstract
A small-sized barrel connecting pipe flange positioning and clamping device belongs to the field of welding tool fixtures and is suitable for positioning and clamping a connecting pipe flange on a small-sized barrel with a flange mounted on a seal head. The device consists of a cylinder clamping part and a pipe connecting flange positioning and clamping part. The cylinder clamping part is a self-centering chuck 8, and the pipe connecting flange positioning and clamping part comprises longitudinal horizontal slide rails 1 (two), longitudinal horizontal slide blocks 4 (two), vertical slide rails 5 (two), vertical slide blocks 6 (two), transverse horizontal slide bars 3, transverse horizontal slide blocks 2, a pipe connecting flange self-centering chuck 7 and bolts and nuts used for connecting the parts. The slide rail slide block can be a polished rod slide rail slide block or a ball screw slide rail slide block. The slide rail slide block is provided with a locking device to fix the position of the slide block on the slide rail. The cylinder end socket flange is clamped on the chuck 8, the pipe connecting flange is clamped on the chuck 7, and the pipe connecting flange can be positioned by moving the positions of the sliding blocks, so that the assembly precision and efficiency are improved, and the welding deformation is reduced.
Description
Technical Field
The invention belongs to the field of welding tool fixtures, and provides a positioning and clamping device for a small-sized barrel pipe connecting flange.
Background
Many small-size containers of boiler pressure vessel trade and annex thereof, for example heat exchanger pipe case etc. all need to weld flange takeover of not uniform in size on the barrel, and for the convenience of equipment follow-up assembly, the precision requirement to the flange location of takeover, welding is very high. The assembly of the existing pipe connecting flange is mostly manual assembly, repeated measurement and adjustment are required for workers, the workload of the workers is increased, a large amount of time is wasted, the defect that the assembly precision is not high exists, and the product quality and the construction period are influenced. The existing tool is only suitable for the connecting pipe in a single direction or a single specification, and the application surface of the tool is narrow.
In order to improve the assembly precision and the assembly efficiency of the pipe connecting flange, a tool clamp which can adapt to multi-direction, multi-position and multi-specification pipe connecting flanges needs to be designed, the product quality is improved, and the product manufacturing period is shortened.
Disclosure of Invention
The invention provides a positioning and clamping device for a small-sized cylinder connecting pipe flange, which is used for positioning and clamping the connecting pipe flange on a cylinder before welding. The device is suitable for positioning and clamping the pipe connecting flange on the small cylinder body with the flange arranged on the end socket, and consists of a cylinder body clamping part and a pipe connecting flange positioning and clamping part. The clamping part of the cylinder body is a self-centering chuck 8, the chuck 8 is generally a three-jaw chuck or a four-jaw chuck, each clamping jaw 8-2 can be synchronously opened or tightened by rotating a chuck rotating handle 8-1, and the clamping jaws can be positive jaws or negative jaws and are respectively used for opening an inner hole of the clamping flange and tightening an outer circular surface of the clamping flange. The chuck 8 is fixed on the workbench 9, the supporting surface of each jaw 8-2 is positioned in the same horizontal plane, when the cylinder is placed, the flange joint surface on the cylinder end socket is placed on the jaws and attached to the jaw supporting surface, the rotating handle 8-2 is rotated to clamp the flange, and the center of the end socket flange, namely the axis of the cylinder is coincided with the central axis of the chuck.
The pipe connecting flange positioning and clamping part comprises longitudinal horizontal slide rails 1 (two), longitudinal horizontal slide blocks 4 (two), vertical slide rails 5 (two), vertical slide blocks 6 (two), transverse horizontal slide bars 3, transverse horizontal slide blocks 2, a pipe connecting flange self-centering chuck 7 and bolts and nuts for connecting the parts. The slide rail slide block can be a polished rod slide rail slide block or a ball screw slide rail slide block. If the slide block is a slide block of a polished rod slide rail, a jacking screw is arranged on each slide block and used for fixing the position of the slide block on the slide rail (or the slide bar), and if the slide block is a slide block of a ball screw slide rail, a locking device is arranged at one end of a screw rod and used for locking the screw rod, so that the position of the slide block is fixed. For the ball screw slide rail slide block, a hand wheel or a stepping motor is arranged at one end of a screw, and the screw is driven to rotate manually or electrically to drive the slide block to move on the slide rail.
The two longitudinal horizontal sliding rails 1 are placed on two sides of the self-centering chuck 8 in parallel and fixed on the workbench 9, the distance from the center of the chuck 8 to the centers of the two longitudinal horizontal sliding rails 1 is equal (b 1= b 2), the two longitudinal horizontal sliding blocks 4 respectively slide on the two longitudinal horizontal sliding rails 1, and length scales are marked on the two longitudinal horizontal sliding rails 1 to indicate the distance L from the center of the chuck 8 along the direction of the sliding rails. Two vertical slide rails 5 are respectively arranged on the upper surfaces of two longitudinal horizontal slide blocks 4 and can longitudinally move along with the longitudinal horizontal slide blocks 4, the central lines of the vertical slide rails 5 are vertical to the working table surface and are vertically crossed with the central lines of the longitudinal horizontal slide rails 1 and the longitudinal horizontal slide blocks 4, the two vertical slide blocks 6 can respectively slide on the two vertical slide rails 5, length scales are marked on the vertical slide rails 5 and indicate the vertical distance h from the clamping jaw supporting surface of a clamping chuck 8, two ends of a transverse horizontal slide bar 3 are respectively connected with the two vertical slide blocks 6 and can vertically move along with the vertical slide blocks 6 and keep horizontal and vertical to the two longitudinal horizontal slide rails 1, the central line of the transverse horizontal slide bar 3 is vertically crossed with the central lines of the two vertical slide rails 5, and the transverse horizontal slide block 2 can slide on the transverse horizontal slide bar 3 and can rotate around the axis of the transverse horizontal slide bar 3, the transverse horizontal sliding rod 3 is marked with length scales to indicate the distance delta b from the center of the chuck 8; the pipe connecting flange self-centering chuck 7 is arranged on the transverse horizontal sliding block 2 and has the same structure as the self-centering chuck 8, the axis of the self-centering chuck 7 is vertically intersected with the axis of the transverse horizontal sliding rod 3, the distance between the jaw supporting surface of the chuck 7 and the central line of the transverse horizontal sliding rod 3 is c, and the c is kept unchanged when the transverse horizontal sliding block 2 rotates around the transverse horizontal sliding rod 3.
Drawings
Fig. 1 is a top view of a flange positioning and clamping device for a small-sized barrel adapter, in which fig. 1 is a longitudinal horizontal slide rail, fig. 2 is a horizontal slide block, fig. 3 is a horizontal slide bar, fig. 8 is a barrel clamping self-centering chuck, fig. 8-1 is a rotating handle of the chuck, and fig. 8-2 is a jaw (three-jaw chuck, with three jaws) of the chuck.
Fig. 2 is a view from a to a in fig. 1, in which fig. 1 is a longitudinal horizontal slide rail, 4 is a longitudinal horizontal slider, 5 is a vertical slide rail, 6 is a vertical slider, 7 is a pipe flange clamping self-centering chuck, 8 is a barrel clamping self-centering chuck, and 9 is a workbench.
FIG. 3 is an example of a cylinder with a horizontal straight pipe with a flange joint surface parallel to the axis of the cylinder, and the axis of the connecting pipe passes through the center of the cylinder.
FIG. 4 is an example of a cylinder, which is provided with a 90-degree elbow pipe with a flange joint surface perpendicular to the axis of the cylinder, and the surface of the pipe axis passes through the center line of the cylinder.
FIG. 5 is an example of a cylinder with a 90 DEG elbow having a flange joint parallel to the cylinder axis, the plane of the elbow axis being perpendicular to the cylinder center line.
Detailed Description
The device can be used for positioning and clamping the pipe connecting flanges in different directions and different specifications.
Example 1:
for the cylinder shown in figure 3, the connecting pipe is a straight pipe, the axis of the connecting pipe is vertically intersected with the axis of the cylinder, the flange joint surface is parallel to the axis of the cylinder, namely, the connecting pipe flange joint surface is vertical to the cylinder end socket flange joint surface, and the installation requires that the central line of the connecting pipe flange is vertically intersected with the central line of the cylinder, so that the distance from the central line of the connecting pipe flange to the cylinder end socket joint surface and the distance from the connecting pipe flange joint surface to the central line of the cylinder are ensured.
The joint surface of the cylinder end socket flange is downwards placed on a jaw supporting surface of a self-centering chuck 8, the opening of the cylinder faces a pipe connecting flange positioning and clamping device, a chuck handle 8-1 is rotated to enable the jaws to clamp the end socket flange, and the center of the flange is coincided with the center of the chuck 8.
Moving the transverse horizontal sliding block 2 to the middle position of the transverse horizontal sliding rod 3, namely delta b =0, rotating the transverse horizontal sliding block 2 to enable the axis of the chuck 7 to be in a horizontal position, screwing a jacking screw (or locking a ball screw) of the transverse horizontal sliding block 2, attaching the joint surface of the pipe connecting flange to a jaw supporting surface of the self-centering chuck 7, and rotating a handle to clamp the flange; moving the vertical slide block 6 to ensure that the distance (h) between the center of the pipe connecting flange and the joint surface of the end socket flange meets the requirement; moving the longitudinal horizontal sliding block 4 to enable the connecting pipe to be close to the cylinder, inserting the connecting pipe into the opening in the cylinder, if the connecting pipe is not aligned with the opening, loosening the clamping jaws of the chuck 8, slightly rotating the cylinder to enable the opening to be aligned with the connecting pipe, enabling the gaps between the connecting pipe and the periphery of the opening to be uniform, and then rotating the handle 8-2 to clamp the end socket flange; adjusting the position of the longitudinal horizontal sliding block 4 to ensure that the distance (L-c) between the joint surface of the pipe connecting flange and the center of the cylinder body meets the requirement; and tightening the jacking screws (or locking the ball screws) on the sliding blocks to fix the positions of the sliding blocks. The positioning and clamping of the pipe connecting flange are completed at the moment, and then the welding work of the pipe connecting and the cylinder body can be carried out.
Example 2:
for the cylinder shown in the attached figure 4, the connecting pipe is a 90-degree bent pipe, the axis of the connecting pipe connecting the cylinder section is vertically intersected with the axis of the cylinder, the axis of the flange is parallel to the axis of the cylinder, the installation requires that the joint surface of the connecting pipe flange is parallel to the joint surface of the cylinder end socket flange, and the distance from the central line of the connecting pipe flange to the central line of the cylinder and the distance from the joint surface of the connecting pipe flange to the joint surface of the cylinder end socket flange are ensured.
The joint surface of the cylinder end socket flange is downwards placed on a jaw supporting surface of a self-centering chuck 8, the opening of the cylinder faces a pipe connecting flange positioning and clamping device, a chuck handle 8-1 is rotated to enable the jaws to clamp the end socket flange, and the center of the flange is coincided with the center of the chuck 8.
Moving the transverse horizontal slider 2 to the middle position of the transverse horizontal sliding rod 3, namely delta b =0, rotating the transverse horizontal slider 2 to enable the chuck 7 to face downwards and enable the axis to be in a vertical position, screwing a jacking screw of the transverse horizontal slider 2, attaching a joint surface of a pipe connecting flange to a jaw supporting surface of the self-centering chuck 7, enabling the pipe connecting flange to point to one side of the cylinder body, and rotating a handle to clamp the flange; moving the vertical slide block 6 to enable the distance (h-c) between the joint surface of the pipe connecting flange and the joint surface of the sealing head flange to meet the requirement; and moving the longitudinal horizontal sliding block 4 to enable the connecting pipe to be close to the cylinder, inserting the connecting pipe into the opening on the cylinder, slightly loosening the clamping jaws of the chuck 7 and the chuck 8 if the connecting pipe is not aligned with the opening, slightly rotating the connecting pipe and the cylinder to enable the connecting pipe to be aligned with the opening, enabling the gap between the connecting pipe and the periphery of the opening to be uniform, and then rotating the handle to clamp the pipe flange and the end socket flange. The position of the longitudinal horizontal sliding block 4 is adjusted to ensure that the distance (L) between the central line of the pipe connecting flange and the center of the cylinder body meets the requirement. And tightening the jacking screws (or locking the ball screws) on the sliding blocks to fix the positions of the sliding blocks, so that the positioning and clamping of the pipe connecting flange are completed, and then the welding work of the pipe connecting and the cylinder body can be performed.
Example 3:
for the cylinder shown in the attached figure 5, the connecting pipe is a 90-degree bent pipe, the plane of the axis of the bent pipe is perpendicular to the central line of the cylinder, the axis of the connecting pipe for connecting the cylinder section passes through the center of the cylinder, the flange joint surface is parallel to the axis of the cylinder, the installation requires that the flange joint surface of the connecting pipe is perpendicular to the flange joint surface of the cylinder end enclosure, and the distance between the central line of the flange joint of the connecting pipe and the central line of the cylinder and the flange joint surface of the cylinder end enclosure is ensured.
The joint surface of the cylinder end socket flange is downwards placed on a jaw supporting surface of a self-centering chuck 8, the opening of the cylinder faces to the side surface, namely the opening faces to be parallel to a transverse horizontal sliding rod 3, a chuck handle 8-1 is rotated to enable the jaws to clamp the end socket flange, and the center of the flange is coincided with the center of the chuck 8.
Moving the transverse horizontal sliding block 2 to one end of a transverse horizontal sliding rod towards the opening side of the cylinder, rotating the transverse horizontal sliding block 2 to enable the axis of the chuck 7 to be in a horizontal position, enabling the joint surface of the pipe connecting flange to be attached to a jaw supporting surface of the self-centering chuck 7, enabling the axis of the bent pipe to be in a horizontal position, enabling the pipe bending interface to point to one side of the cylinder, and rotating a handle clamp to be attached to the pipe flange; moving the vertical slide block 6 to ensure that the distance (h) between the central line of the pipe connecting flange and the joint surface of the sealing head flange meets the requirement; moving the longitudinal horizontal sliding block 4 to enable the distance (L-c) between the joint surface of the pipe connecting flange and the center of the cylinder body to meet the requirement; and moving the horizontal sliding block 2, inserting the connecting pipe into the hole in the cylinder, slightly loosening the clamping jaws of the chuck 7 and the chuck 8 if the connecting pipe is not aligned with the hole, slightly rotating the connecting pipe and the cylinder to align the connecting pipe with the hole, enabling the gaps between the connecting pipe and the periphery of the hole to be uniform, then rotating the handle to clamp the pipe flange and the end socket flange, and adjusting the horizontal sliding block 2 to enable the delta b to meet the requirement. And tightening the jacking screws (or locking the ball screws) on the sliding blocks to fix the positions of the sliding blocks, so that the positioning and clamping of the pipe connecting flange are completed, and then the welding work of the pipe connecting and the cylinder body can be performed.
Claims (2)
1. The small-sized cylinder connecting pipe flange positioning and clamping device is characterized by consisting of a cylinder clamping part and a connecting pipe flange positioning and clamping part; the cylinder clamping part is a self-centering chuck (8) which is fixed on the horizontal plane of a workbench (9), and the supporting surfaces of the clamping jaws are positioned on the same horizontal plane; the pipe connecting flange positioning and clamping part comprises a longitudinal horizontal sliding rail (1), a longitudinal horizontal sliding block (4), a vertical sliding rail (5), a vertical sliding block (6), a transverse horizontal sliding rod (3), a transverse horizontal sliding block (2), a pipe connecting flange self-centering chuck (7) and bolts and nuts for connecting all parts; and a locking device is arranged on the sliding rail or the sliding block and is used for fixing the position of the sliding block on the sliding rail.
2. Device according to claim 1, the flange of the pipe being self-centring chuck (7) and the clamping chuck of the cylinder
(8) The clamping device is a three-jaw chuck or a four-jaw chuck, a longitudinal horizontal sliding rail (1) is fixed on a workbench (9), and a longitudinal horizontal sliding block (4) slides on the longitudinal horizontal sliding rail (1) and is far away from or close to a chuck (8); the longitudinal horizontal sliding rail (1) is marked with length scales to indicate the distance from the center of the chuck (8) along the direction of the sliding rail; the vertical sliding rail (5) is arranged on the upper surface of the longitudinal horizontal sliding block (4) and moves along with the longitudinal horizontal sliding block (4), the central line of the vertical sliding rail (5) is perpendicular to the working table surface and is vertically crossed with the central line of the longitudinal horizontal sliding rail (1), the vertical sliding block (6) can slide on the vertical sliding rail (5), length scales are marked on the vertical sliding rail (5), and the vertical distance from the clamping jaw supporting surface of the clamping chuck (8) is indicated; the two ends of the transverse horizontal sliding rod (3) are respectively connected with the two vertical sliding blocks (6), move up and down along with the vertical sliding blocks (6) and keep horizontal and perpendicular to the two longitudinal horizontal sliding rails (1), the central line of the transverse horizontal sliding rod (3) is vertically crossed with the central lines of the two vertical sliding rails (5), the transverse horizontal sliding block (2) can slide on the transverse horizontal sliding rod (3) and can rotate around the axis of the transverse horizontal sliding rod (3), the transverse horizontal sliding rod (3) is marked with length scales to indicate the transverse distance from the center of the chuck (8); the pipe connecting flange self-centering chuck (7) is installed on the transverse horizontal sliding rod (2), the axis of the pipe connecting flange self-centering chuck (7) is vertically intersected with the axis of the transverse horizontal sliding rod (3), and when the transverse horizontal sliding rod (2) rotates around the transverse horizontal sliding rod (3), the distance between the jaw supporting surface of the pipe connecting flange self-centering chuck (7) and the central line of the transverse horizontal sliding rod (3) is kept unchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023261359.4U CN214212770U (en) | 2020-12-30 | 2020-12-30 | Small-sized barrel connecting pipe flange positioning and clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023261359.4U CN214212770U (en) | 2020-12-30 | 2020-12-30 | Small-sized barrel connecting pipe flange positioning and clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214212770U true CN214212770U (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023261359.4U Active CN214212770U (en) | 2020-12-30 | 2020-12-30 | Small-sized barrel connecting pipe flange positioning and clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214212770U (en) |
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2020
- 2020-12-30 CN CN202023261359.4U patent/CN214212770U/en active Active
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