CN216179139U

CN216179139U - Straight welded pipe welding seam equipment of polishing

Info

Publication number: CN216179139U
Application number: CN202122433225.4U
Authority: CN
Inventors: 王润成; 罗玉良; 邓志强
Original assignee: Hunan Beichen New Material Co ltd
Current assignee: Hunan Beichen New Material Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-04-05
Anticipated expiration: 2031-10-09

Abstract

The utility model belongs to polishing equipment, and particularly relates to straight welded pipe weld joint polishing equipment which comprises a polishing device and a detection assembly for detecting whether a weld joint deviates or not, wherein the polishing device or the straight welded pipe can move along the axis direction of the straight welded pipe; the deflection mechanism can drive the grinding assembly to deflect corresponding angles around the axis of the straight welded pipe according to the welding seam deflection data detected by the detection assembly, so that automatic tracking of welding seam deflection is realized, the grinding assembly can actively align grinding and polishing angles along with the deflection degree of the welding seam, the grinding assembly is guaranteed to always perform grinding and polishing operation along with the welding seam, surface damage to areas except the welding seam is avoided, and the surface quality of the welded pipe is improved.

Description

Straight welded pipe welding seam equipment of polishing

Technical Field

The utility model belongs to polishing equipment, and particularly relates to polishing equipment for a weld joint of a straight welded pipe.

Background

The weld seam of the straight welded pipe extends along the axial direction of the pipe body, but the weld seam on the pipe body is difficult to keep straight line all the time in the welding process, so that the weld seam can have certain deviation. And to the equipment of straight welded pipe welding seam burnishing and polishing, generally be that grinding device moves along body axis direction, or grinding device whole not rectilinear movement, straight welded pipe rectilinear movement to the welding seam burnishing and polishing operation of straight welded pipe is difficult to carry out effective burnishing and polishing to the welding seam region that has the skew on the body, and the subassembly of polishing easily rubs on the body surface that is located the welding seam region outside of skew and damages the body surface under this kind of condition.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide straight welded pipe weld grinding equipment capable of tracking, aligning, grinding and polishing angles of weld offset.

The utility model comprises a grinding device and a detection assembly for detecting whether a welding seam deviates or not, wherein the grinding device or a straight welded pipe can move along the axial direction of the straight welded pipe, the grinding device comprises a grinding assembly and a deflection mechanism, and the deflection mechanism can drive the grinding assembly to deflect around the axial direction of the straight welded pipe.

Further, the detection component is an infrared temperature sensor for detecting the surface temperature of the straight welded pipe.

Furthermore, the infrared temperature sensors are at least provided with two, the infrared temperature sensors are all located on the same plane, and the shortest distance from the detection ends of the infrared temperature sensors to the surface of the longitudinal welded pipe is equal.

Furthermore, the infrared temperature sensors are arranged in three numbers, and the distances between two adjacent infrared temperature sensors are equal.

Furthermore, the pipe joint grinding device further comprises a fixing piece, an opening for the straight welded pipe to pass through is formed in the fixing piece, and the grinding device and the detection assembly are arranged on the fixing piece.

Furthermore, the fixing piece is positioned in the opening and is provided with a support bracket for supporting the straight welded pipe.

Furthermore, the deflection mechanism comprises a gear, an arc-shaped rack meshed with the gear and a deflection driving piece rotating by a driving gear, the arc-shaped rack is in sliding fit with the fixing piece and is connected with the grinding assembly, and the rotation axis of the arc-shaped rack is on the same straight line with the axis of the straight welded pipe.

Furthermore, an arc-shaped hole corresponding to the rotation path of the arc-shaped rack is formed in the fixing piece, a guide piece is arranged on the arc-shaped rack, and the guide piece is arranged in the arc-shaped hole in a sliding mode.

Furthermore, the grinding assembly and the arc-shaped rack are connected through a guide piece, and the grinding assembly and the arc-shaped rack are respectively positioned on two sides of the fixing piece.

Still further, the grinding assembly includes a rotatable grinding head and a linear drive that drives the grinding head toward the butt welded pipe.

The utility model has the advantages that the deflection mechanism can drive the grinding assembly to deflect at a corresponding angle around the axis of the straight welded pipe according to the welding seam deflection data detected by the detection assembly, thereby realizing the automatic tracking of the welding seam deflection, leading the grinding assembly to actively align the grinding and polishing angle along with the deflection degree of the welding seam, ensuring that the grinding assembly always carries out grinding and polishing operation along with the welding seam, avoiding surface damage to the areas except the welding seam and further improving the surface quality of the welded pipe.

Drawings

Fig. 1 is a first view structure diagram of the present invention.

Fig. 2 is a second perspective structural diagram of the present invention.

Fig. 3 is a first view structure diagram in the use state of the present invention.

Fig. 4 is a schematic view of a second viewing angle structure in a use state of the present invention.

In the figures, 1-fastener; 11-opening; 12-an arc-shaped hole; 2-a detection component; 21-an infrared temperature sensor; 3-grinding the component; 31-polishing head; 32-linear drive; 4-a deflection mechanism; 41-gear; 42-a rack; 43-a deflection drive; 5-a guide; 6-a support bracket; 7-straight welded pipe; 71-weld seam.

Detailed Description

As shown in fig. 1-4, the pipe welding device comprises a grinding device and a detection assembly 2, wherein the detection assembly 2 is used for detecting whether a weld 71 on a straight welded pipe 7 deviates, the grinding device or the straight welded pipe 7 can move linearly along the axial direction of the straight welded pipe 7, the grinding device comprises a grinding assembly 3 and a deflection mechanism 4, the deflection mechanism 4 can drive the grinding assembly 3 to deflect at a corresponding angle around the axial line of the straight welded pipe 7 according to the deviation data of the weld 71 detected by the detection assembly 2, so that automatic tracking of the deviation of the weld 71 is realized, the grinding assembly 3 can actively align a grinding and polishing angle along with the deviation degree of the weld 71, the grinding assembly 3 can always carry out grinding and polishing operations along with the weld 71, surface damage to areas except the weld 71 is avoided, and the surface quality of the welded pipe is improved.

In one embodiment of the present invention, the whole grinding device moves linearly along the axial direction of the longitudinal welded pipe 7 to grind and polish the welded joint 71, and in this embodiment, the detecting unit 2 moves linearly with the grinding device but does not deflect with the grinding unit 3, which is suitable for grinding and polishing the welded joint 71 of the longitudinal welded pipe 7 having a short length. In another embodiment of the present invention, in which the longitudinal welded pipe 7 is moved in the direction of its own axis and the grinding device is not linearly displaced as a whole when performing the grinding and polishing work, the embodiment is suitable for use in continuous production of the longitudinal welded pipe 7, and the inspection unit 2 is located between the welding station and the grinding device, and the inspection unit 2 is located closer to the grinding device than the welding station.

The utility model also comprises a fixing piece 1, wherein an opening 11 for the straight welded pipe 7 to pass through is formed in the fixing piece 1, the opening 11 can be a through hole with the diameter larger than that of the straight welded pipe 7, and the grinding device and the detection assembly 2 are arranged on the fixing piece 1. A support bracket 6 is arranged in the opening 11 of the fixing piece 1, the straight welded pipe 7 can move on the surface of the support bracket 6, and the support bracket 6 can support the straight welded pipe 7.

The deflection mechanism 4 comprises a gear 41, an arc rack 42 meshed with the gear 41 and a deflection driving piece 43 rotating by the driving gear 41, the arc rack 42 is in sliding fit with the fixing piece 1, the arc rack 42 is connected with the grinding assembly 3, the grinding assembly 3 integrally deflects and moves along the arc rack 42, the rotation axis of the arc rack 42 is in the same straight line with the axis of the straight welded pipe 7, namely the rotation axis of the arc rack 42 is overlapped with the axis of the straight welded pipe 7, and the deflection driving piece 43 drives the driving gear 41 to rotate so as to drive the arc rack 42 to deflect along the surface of the fixing piece 1, so that the grinding assembly 3 deflects. Preferably, the yaw drive 43 is a servo motor.

The arc hole 12 corresponding to the rotation path of the arc rack 42 is formed in the fixing member 1, the guide member 5 is arranged on the arc rack 42, the guide member 5 is arranged in the arc hole 12 in a penetrating mode and can slide in the arc hole 12, the width of the arc hole 12 is smaller than that of the arc rack 42, the guide member 5 and the arc hole 12 play a role in guiding and supporting the arc rack 42 when moving, and stability and reliability of the arc rack 42 during deflection movement are guaranteed. In order to further improve the reliability of the arc rack 42 during the deflection movement, preferably, two arc holes 12 are provided, two corresponding guide pieces 5 are provided, the two guide pieces 5 are respectively located at two ends of the same side of the arc rack 42, and the two guide pieces 5 are respectively correspondingly matched with the two arc holes 12.

In the utility model, the grinding assembly 3 and the arc-shaped rack 42 are connected through one of the guide members 5, the guide member 5 penetrates through the arc-shaped hole 12, and the grinding assembly 3 and the arc-shaped rack 42 are respectively arranged at two ends of the guide member 5, so that the grinding assembly 3 and the arc-shaped rack 42 are respectively positioned at two sides of the fixing member 1. The guide piece 5 can be connected with the grinding assembly 3 and the arc-shaped rack 42, plays a role in guiding and supporting the movement of the grinding assembly 3 and the arc-shaped rack 42, and improves the overall compactness of the structure and the reliability of deflection movement.

The grinding assembly 3 includes a grinding head 31, a rotating member that drives the grinding head 31 to rotate, and a linear driving member 32 that can drive the grinding head 31 to move toward the longitudinal welded pipe 7. The linear driving piece 32 is arranged at one end of the guide piece 5 through a support, the output end of the linear driving piece 32 is arranged downwards, the polishing head 31 is rotatably arranged at the output end of the linear driving piece 32, the rotating piece is arranged at the output end of the linear driving piece 32 and positioned at one side of the polishing head 31, and the rotating piece moves up and down along with the output end of the linear driving piece 32. The working surface of the polishing head 31 can be driven to contact with the welding seam 71 through the linear driving piece 32, and the output end of the rotating piece is in direct or indirect transmission connection with the rotating shaft of the polishing head 31 so as to drive the polishing head 31 to rotate for polishing. Preferably, the rotating member is a motor, the linear driving member 32 is a cylinder, and the motor and the cylinder are electrically connected to an external controller.

Based on the continuous production embodiment of the longitudinal welded pipe 7, as shown in fig. 3, when polishing and polishing are performed, the area of the welding seam 71 on the longitudinal welded pipe 7 is upward, the welding seam 71 is vertically upward in a non-offset state, the detection assembly 2 and the polishing assembly 3 are downward, and the polishing working surface of the polishing assembly 3 is vertically downward. The detection assembly 2 is an infrared temperature sensor 21, the infrared temperature sensor 21 is used for detecting the surface temperature of the longitudinal welded pipe 7, and the detection end of the infrared temperature sensor 21 is arranged towards the welding seam 71. Because the temperature of the welding seam 71 is higher, the temperature of the welding seam 71 is lower when the distance between the two sides of the welding seam 71 and the welding seam 71 is larger, and whether the welding seam 71 deviates or not is judged by the difference value between the temperature value detected by the infrared temperature sensor 21 and the preset temperature value. Preferably, at least two infrared temperature sensors 21 are arranged, all the infrared temperature sensors 21 are located on the same plane, and the shortest distances from the detection ends of all the infrared temperature sensors 21 to the surface of the longitudinal welded pipe 7 are equal, so as to reduce the detection error. It is particularly preferred that infrared temperature sensor 21 is provided with threely, and three infrared temperature sensor 21 all sets up on installing the same support on mounting 1, and the distance between two adjacent infrared temperature sensor 21 equals, further reduces detection error. The detection ends of the infrared temperature sensors 21 positioned at two sides of the three infrared temperature sensors 21 are arranged towards the surface of the straight welded pipe 7, when in use, the detection ends of the infrared temperature sensors 21 positioned at two sides are respectively arranged towards the areas outside two sides of the welding seam 71, the detection end of the infrared temperature sensor 21 positioned at the middle is vertically arranged downwards, and the detection end of the infrared temperature sensor 21 positioned at the middle is vertically arranged towards the welding seam 71 under the condition that the welding seam 71 has no deviation, in the utility model, the maximum deviation stroke of the welding seam 71 does not exceed the detection range of the infrared temperature sensors 21 at the outermost sides.

The utility model also comprises a microprocessor and a servo controller, wherein the microprocessor is electrically connected with the servo controller, the three infrared temperature sensors 21 are electrically connected with the microprocessor, the deflection driving piece 43 (servo motor) is electrically connected with the servo controller, temperature values measured by the three infrared temperature sensors 21 are input into the microprocessor for operation, whether the welding seam 71 deviates or not is judged after the microprocessor operates, if the deviation is judged, the microprocessor sends a corresponding deflection instruction to the servo controller, and the servo controller drives the servo motor to drive the grinding assembly 3 to correspondingly deflect according to the deflection instruction. Taking the positional relationship shown in fig. 3 as an example, the difference between the temperature value detected by the middle infrared temperature sensor 21 and the temperature value detected by the left infrared temperature sensor 21 is a value of one, and the difference between the temperature value detected by the middle infrared temperature sensor 21 and the temperature value detected by the right infrared temperature sensor 21 is a value of two. When the welding seam 71 has no offset, the temperature value detected by the middle infrared temperature sensor 21 is greater than the temperature values detected by the two side infrared temperature sensors 21, and the first value and the second value are substantially the same (i.e. the difference between the first value and the second value is within a specified range), it is determined that the welding seam 71 has no offset, and the deflection mechanism 4 does not drive the grinding assembly 3 to deflect. When the welding seam 71 deviates, taking the case that the welding seam 71 deviates to a position between the left infrared temperature sensor 21 and the middle infrared temperature sensor 21 as an example, if the difference value between the first numerical value and the second numerical value exceeds a specified range, and the temperature value detected by the left infrared temperature sensor 21 is greater than the temperature value detected by the right infrared temperature sensor 21, it is determined that the welding seam 71 deviates to the left, the microprocessor carries out transportation according to the temperature values detected by the three infrared temperature sensors 21 and the difference value between the temperature values, sends out a corresponding deflection instruction after operation to send out a corresponding deflection instruction to the servo controller, and the servo controller drives the servo motor to drive the grinding assembly 3 to deflect at a corresponding angle according to the deflection instruction, so as to carry out tracking grinding and polishing operation on the welding seam 71.

Claims

1. The utility model provides a straight welded pipe welding seam equipment of polishing, characterized by includes grinding device and is used for detecting whether detect component (2) that welding seam (71) squinted, and grinding device or straight welded pipe (7) can be followed the axis direction removal of straight welded pipe (7), grinding device is including grinding component (3) and deflection mechanism (4), deflection mechanism (4) can drive grinding component (3) and deflect around the axis of straight welded pipe (7).

2. The butt welded pipe weld grinding apparatus according to claim 1, wherein the detecting member (2) is an infrared temperature sensor (21) for detecting a surface temperature of the butt welded pipe (7).

3. The straight welded pipe weld grinding equipment according to claim 2, characterized in that at least two infrared temperature sensors (21) are provided, the infrared temperature sensors (21) are all located on the same plane, and the shortest distances from the detection ends of the infrared temperature sensors (21) to the surface of the straight welded pipe (7) are equal.

4. The butt welded pipe weld grinding apparatus according to claim 3, wherein three infrared temperature sensors (21) are provided, and the distances between adjacent two infrared temperature sensors (21) are equal.

5. The straight welded pipe welding seam grinding equipment according to any one of claims 1 to 4, characterized by further comprising a fixing piece (1), wherein an opening (11) for the straight welded pipe (7) to pass through is formed in the fixing piece (1), and the grinding device and the detection assembly (2) are arranged on the fixing piece (1).

6. The butt welded pipe weld grinding apparatus according to claim 5, characterized in that the fixing member (1) is provided with a support bracket (6) for supporting the butt welded pipe (7) in the opening (11).

7. The straight welded pipe welding seam grinding device is characterized in that the deflection mechanism (4) comprises a gear (41), an arc-shaped rack (42) meshed with the gear (41) and a deflection driving piece (43) rotating by the gear (41), the arc-shaped rack (42) is in sliding fit with the fixing piece (1), the arc-shaped rack (42) is connected with the grinding assembly (3), and the rotation axis of the arc-shaped rack (42) is in the same straight line with the axis of the straight welded pipe (7).

8. The straight welded pipe welding seam grinding device as claimed in claim 7, characterized in that the fixing member (1) is provided with an arc-shaped hole (12) corresponding to the rotation path of the arc-shaped rack (42), the arc-shaped rack (42) is provided with a guide member (5), and the guide member (5) is slidably arranged in the arc-shaped hole (12).

9. The straight welded pipe welding seam grinding device according to claim 8, characterized in that the grinding component (3) and the arc-shaped rack (42) are connected through a guide piece (5), and the grinding component (3) and the arc-shaped rack (42) are respectively arranged at two sides of the fixing piece (1).

10. The butt welded pipe weld grinding apparatus according to any one of claims 1 to 4, 6 to 9, wherein the grinding unit (3) includes a rotatable grinding head (31) and a linear driving member (32) that drives the grinding head (31) to move toward the butt welded pipe (7).