Intelligent welding positioner and using method thereof

Abstract

The invention relates to the technical field of welding, in particular to an intelligent welding positioner and a using method thereof. Comprising a supporting frame, the supporting frame is rotationally connected with a rotating base, the rotating base is fixedly connected with a fixed disc, the fixed disc is rotationally connected with a rotating disc, and the rotating disc is provided with a clamping piece; the reciprocating telescopic rod is rotationally connected to the rotating base, a telescopic part of the reciprocating telescopic rod is slidably connected with a connecting frame, and the connecting frame is provided with a welding head; the sliding rod is connected to the fixed disc in a sliding mode, the sliding rod is rotationally connected with a pressing disc, the pressing disc is connected with a sliding block in a sliding mode, and the sliding block is connected with a clamping block in a sliding mode. The L-shaped pipeline is pressed through the pressing disc, the resultant force in the clamping direction faces the weld joint of the inclined notch, the L-shaped pipeline is clamped, the phenomenon that the L-shaped pipeline deviates due to the influence of thermal stress is reduced, and therefore the probability that the weld joint of the L-shaped pipeline deforms or breaks in the rotating welding process is reduced.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and in particular to an intelligent welding positioner and a use method thereof. Background Art

[0002] A welding positioner is a device used to assist welding. Generally, when performing circumferential welding on a round tube, it is necessary to continuously rotate the round tube or welding gun during the welding process. The main function of the welding positioner is to rotate and tilt the workpiece to ensure that the weld of the workpiece is always in the best welding position, thereby improving the welding quality and efficiency through intelligent devices and methods. During the pipeline welding process, the pre-spot welding position at the pipeline weld is prone to deformation or even breakage due to the influence of welding thermal stress.

[0003] Pipeline welding includes not only circular welding on the same plane, but also circumferential welding of inclined cuts on L-shaped circular tubes. Existing welding positioners only clamp one end of the pipe when in use, and the center of gravity of the L-shaped pipe itself is offset. During the rotation welding of the L-shaped pipe, the center of gravity of the L-shaped pipe is offset and the center of gravity position changes all the time. Therefore, the existing clamping method is not suitable for fixing the L-shaped pipe, which will make the pre-spot welding position of the L-shaped pipe weld more prone to deformation or even breakage, which will cause the welding positioner to fail to achieve the desired effect when welding the L-shaped pipe, thereby affecting the efficiency of pipe welding. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background, the present invention provides an intelligent welding positioner and a method for using the same.

[0005] The technical solution of the present invention is: an intelligent welding positioner, comprising: A support frame, wherein the support frame is rotatably connected to a rotating base, the rotating base is fixedly connected to a fixed disk, the fixed disk is rotatably connected to a rotating disk, a clamping member is installed on the rotating disk, an adjuster is installed on the support frame, the adjuster is used to drive the rotating base to rotate, and an external motor is installed in the rotating base to drive the rotating disk to rotate; A reciprocating telescopic rod is rotatably connected to the rotating base, a telescopic portion of the reciprocating telescopic rod is slidably connected to a connecting frame, and the connecting frame is provided with a welding head; A transmission assembly, disposed on the rotating base, for driving the reciprocating telescopic rod to rotate reciprocatingly; A sliding rod is slidably connected to the fixed plate, a first elastic member is fixedly connected between the sliding rod and the fixed plate, the sliding rod is rotatably connected to a pressure plate, the pressure plate is slidably connected to a sliding block, a second elastic member is fixedly connected between the pressure plate and the sliding block, the sliding block is slidably connected to a clamping block, and a third elastic member is fixedly connected between the sliding block and the clamping block.

[0006] More preferably, the pressure plate is provided with a hole, the diameter of the hole is larger than the diameter of the welded pipe, and the axis of the hole is colinear with the axis of the rotating plate.

[0007] More preferably, a first limit pin is fixedly connected in the fixed portion of the reciprocating telescopic rod, and the telescopic portion of the reciprocating telescopic rod is provided with symmetrically distributed arc grooves, and the arc grooves are used to limit the first limit pin.

[0008] More preferably, the transmission assembly comprises: A bevel gear is rotatably connected to the rotating base, and the bevel gear is coaxially connected to a frustum; The disc is fixedly connected to the fixed part of the reciprocating telescopic rod, and the round table is used to drive the disc.

[0009] More preferably, it also includes: A transmission is mounted on the rotating base, wherein the input shaft of the transmission is driven by an external motor in the rotating base, and the output shaft of the transmission is fixedly connected with an incomplete bevel gear symmetrically distributed in the center, and the incomplete bevel gear is used to drive the bevel gear; The first hydraulic telescopic rod is fixedly connected to the rotating base, and the telescopic portion of the first hydraulic telescopic rod is fixedly connected to the speed change shaft of the transmission.

[0010] More preferably, the angle covered by all teeth of the incomplete bevel wheel is A, the contact angle between the incomplete bevel wheel and the bevel gear is B, and A<180°-B.

[0011] More preferably, it also includes: A second hydraulic telescopic rod is fixedly connected to the rotating disk, and a telescopic portion of the second hydraulic telescopic rod is fixedly connected to the clamping member; The first shell is fixed to the fixed plate. The first shell is sealed and rotatably connected to the second shell communicated with the interior thereof. The second hydraulic telescopic rod is communicated with the interior of the second shell through a first conduit. The first shell is communicated with the first hydraulic telescopic rod through a second conduit.

[0012] More preferably, it further includes: a rotating telescopic rod, which is rotatably connected to the fixed disk, the fixed part of the rotating telescopic rod and the output shaft of the external motor are transmitted through a transmission member, the telescopic part of the rotating telescopic rod is rotatably connected to the disk through a rotating ring, a second limit pin is fixedly connected to the fixed part of the rotating telescopic rod, and the telescopic part of the rotating telescopic rod is provided with an annular groove, and the annular groove is used to limit the second limit pin.

[0013] More preferably, it also includes: The third hydraulic telescopic rod is fixedly connected to the connecting frame, the welding head is slidably connected to the connecting frame, the telescopic part of the third hydraulic telescopic rod is fixedly connected to the welding head, and the third hydraulic telescopic rod is connected to the first shell through a third conduit.

[0014] A method for using an intelligent welding positioner, based on the above-mentioned intelligent welding positioner, the specific steps are as follows: Step 1: When the device is required to be used to weld an L-shaped pipe, the L-shaped pipe is clamped by a clamping member, a sliding block and a clamping block, and the position of the welding head is adjusted so that the welding head is aligned with the weld of the L-shaped pipe; Step 2: After the clamping piece clamps the L-shaped pipe, the clamping piece drives the telescopic part of the second hydraulic telescopic rod to move according to the diameter of the L-shaped pipe. The second hydraulic telescopic rod moves the telescopic part of the first hydraulic telescopic rod through hydraulic transmission. The telescopic part of the first hydraulic telescopic rod drives the speed change shaft of the transmission to move, so as to adjust the transmission ratio of the transmission. The moving speed of the welding head is adjusted through transmission. Step 3: When the second hydraulic telescopic rod moves the telescopic portion of the first hydraulic telescopic rod through hydraulic transmission, the second hydraulic telescopic rod synchronously extends the telescopic portion of the third hydraulic telescopic rod through hydraulic transmission and drives the welding head to move, so that the welding head is close to the L-shaped pipes of different diameters; Step 4: Start the external motor, which drives the rotating telescopic rod through the transmission member, so that the telescopic part of the rotating telescopic rod is extended and retracted and drives the disc to move, and adjust the transmission ratio between the round table and the disc to make the telescopic part of the reciprocating telescopic rod retract and retract at a variable speed; Step 5: After the external motor is turned on, the external motor drives the L-shaped pipe to rotate through the rotating disk. At the same time, the disc 303 drives the reciprocating telescopic rod. The telescopic part of the reciprocating telescopic rod drives the welding head to move back and forth through the connecting frame to weld the L-shaped pipe. Step 6: When the L-shaped pipe is welded, turn off the power of the device, then remove and collect the welded L-shaped pipe, and finally clean the device for the next use.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention presses the L-shaped pipe by the pressure plate, so that the resultant force in the clamping direction is directed toward the weld of the inclined cutout, and the L-shaped pipe is clamped to reduce the phenomenon that the L-shaped pipe is deflected by thermal stress, thereby reducing the probability of deformation or breakage of the weld of the L-shaped pipe during rotation welding; 2. By adjusting the telescopic speed of the telescopic part on the rotating telescopic rod, the welding head can move at a variable speed to adapt to the increase in welding length caused by the upward deviation of the pipeline weld, thereby avoiding insufficient welding time caused by the increase in the welding length of the L-shaped pipeline, and then preventing the L-shaped pipeline from having insufficient welding strength, which affects the quality of the L-shaped pipeline welding; 3. The telescopic portion of the third hydraulic telescopic rod is moved by hydraulic transmission, and the telescopic portion of the third hydraulic telescopic rod drives the welding head to move, thereby changing the position of the welding head to adapt to the changes in the welding points of L-shaped pipes with different diameters, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the welding head of the present invention; Figure 3 It is a three-dimensional structural cross-sectional view of the pressure plate of the present invention; Figure 4 It is a three-dimensional structural cross-sectional view of the reciprocating telescopic rod of the present invention; Figure 5 It is an exploded view of the three-dimensional structure of the reciprocating telescopic rod of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the disc of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the incomplete cone wheel of the present invention; Figure 8 It is a three-dimensional structural cross-sectional view of the first shell and the second shell of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating telescopic rod of the present invention; Fig.10 It is an exploded view of the three-dimensional structure of the rotating telescopic rod of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the third hydraulic telescopic rod of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the welding head and the welded pipe of the present invention.

[0017] Parts names and serial numbers in the figure: 1-support frame, 11-rotating base, 101-fixed disk, 102-rotating disk, 103-clamping piece, 104-adjuster, 2-reciprocating telescopic rod, 201-connecting frame, 202-welding head, 203-first limit pin, 204-arc groove, 3-transmission assembly, 301-bevel gear, 302-round table, 303-disc, 4-sliding rod, 41-pressure plate, 401-sliding block, 402-clamping block, 403-hole, 501-transmission, 502-first hydraulic telescopic rod, 503-incomplete cone wheel, 6-second hydraulic telescopic rod, 601-first shell, 602-second shell, 7-rotating telescopic rod, 701-second limit pin, 702-annular groove, 8-third hydraulic telescopic rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below.

[0019] Example 1: Figure 1-Figure 3 As shown, the present invention proposes an intelligent welding positioner, comprising: a support frame 1, the support frame 1 is rotatably connected to a rotating base 11, the rotating base 11 is fixedly connected to a fixed disk 101, the fixed disk 101 is rotatably connected to a rotating disk 102, the rotating disk 102 is installed with a clamping member 103, the support frame 1 is installed with an adjuster 104, the adjuster 104 is used to drive the rotating base 11 to rotate, and an external motor for driving the rotating disk 102 to rotate is installed in the rotating base 11; a reciprocating telescopic rod 2 is rotatably connected to the rotating base 11, and the telescopic part of the reciprocating telescopic rod 2 is slidably connected to a connecting frame 201, and the connecting frame 201 is provided with a welding head 202; a transmission The movable component 3 is arranged on the rotating base 11, and is used for driving the reciprocating telescopic rod 2 to rotate reciprocatingly; the sliding rod 4 is slidably connected to the fixed disk 101, and a first elastic member is fixedly connected between the sliding rod 4 and the fixed disk 101; the sliding rod 4 is rotatably connected to a pressure plate 41, and the pressure plate 41 is slidably connected to a sliding block 401, and a second elastic member is fixedly connected between the pressure plate 41 and the sliding block 401; the sliding block 401 is slidably connected to a clamping block 402, and a third elastic member is fixedly connected between the sliding block 401 and the clamping block 402; the pressure plate 41 is provided with a hole 403, and the diameter of the hole 403 is larger than the diameter of the welded pipe, and the axis of the hole 403 is colinear with the axis of the rotating disk 102.

[0020] like Figure 4 and Figure 5 As shown, a first limiting pin 203 is fixedly connected in the fixed part of the reciprocating telescopic rod 2 , and symmetrically distributed arc grooves 204 are provided in the telescopic part of the reciprocating telescopic rod 2 , and the arc grooves 204 are used to limit the first limiting pin 203 .

[0021] like Figure 1 , Figure 6 and Figure 7 As shown, the transmission assembly 3 includes: a bevel gear 301 rotatably connected to the rotating base 11 , the bevel gear 301 is coaxially connected to a round table 302 ; a disc 303 fixedly connected to the fixed part of the reciprocating telescopic rod 2 , and the round table 302 is used to drive the disc 303 .

[0022] The purpose is to reduce the probability of deformation or even breakage at the L-shaped pipe weld. Specifically, the support frame 1 is provided with a control terminal not shown in the figure. The clamping member 103 is composed of a plurality of clamping blocks distributed circumferentially. The clamping block is electrically connected to the control terminal. The control terminal controls the sliding of the clamping block to clamp and fix the welded part. The regulator 104 is composed of a motor, a spur gear and a fan gear. The motor is electrically connected to the control terminal. The output shaft of the motor is fixedly connected to the spur gear, and the fan gear is fixedly connected to the rotating base 11. The operator can control the output shaft of the motor to rotate and drive the spur gear to rotate through the control terminal, so that the fan gear rotates and drives the rotating base 11 to rotate, thereby adjusting the orientation of the upper surface of the rotating base 11 for the convenience of the operator to operate the device. The operator can adjust the position of the welding head 202 by adjusting the position of the telescopic part of the connecting frame 201 on the reciprocating telescopic rod 2. In this embodiment, the welding head 202 is fixedly connected to the connecting frame 201. The motor and the welding head 202 are both electrically connected to the control terminal, the arc grooves 204 are symmetrically distributed front and back, the telescopic part of the reciprocating telescopic rod 2 is initially in a retracted state, and the two front and rear arc grooves 204 make the rotating disk 102 rotate clockwise or counterclockwise. The telescopic part of the reciprocating telescopic rod 2 gradually extends after the rotating disk 102 starts to rotate, so as to be suitable for operators with different usage habits and increase the applicability of the device. The diameter of the frustum 302 gradually increases from top to bottom, so that the rotation speed of the disk 303 gradually increases when it moves downward. The first elastic member between the sliding rod 4 and the fixed disk 101 is a spring, the second elastic member between the pressure plate 41 and the sliding block 401 is a compression spring, and the third elastic member between the sliding block 401 and the clamping block 402 is a compression spring. The pressure plate 41 is made of light material, and the pressure plate 41 can be made of plastic material to reduce the resistance of the L-shaped pipe when the pressure plate 41 is driven to rotate through the sliding block 401 and the clamping block 402, so as to prevent the L-shaped pipe from breaking at the spot welding position.

[0023] In this embodiment, the operator drives the bevel gear 301 to rotate through an external power source.

[0024] Specific working principle: When the operator needs to use the device to weld the L-shaped pipe, the operator first pulls up the sliding rod 4 and the pressure plate 41, so that the first elastic member of the sliding rod 4 is compressed and contracted, and the L-shaped pipe that has been spot-welded in advance is fixed on the rotating disk 102 by the clamping member 103, and then the position of the connecting frame 201 is manually adjusted to align the welding head 202 with the pipe weld. The operator releases the sliding rod 4 and the pressure plate 41, and the first elastic member between the sliding rod 4 and the fixed disk 101 is stretched and driven to move, and the pressure plate 41 presses the L-shaped pipe, and the operator clamps the L-shaped pipe between the sliding block 401 and the clamping block 402 according to the size of the L-shaped pipe. The position of the sliding block 401 is adjusted so that the second elastic member between the pressure plate 41 and the sliding block 401 is compressed, and the third elastic member between the sliding block 401 and the clamping block 402 is compressed to accumulate force and clamp the inner wall of the pipe. The L-shaped pipe is pressed by the pressure plate 41 so that the resultant force in the clamping direction is toward the weld of the inclined incision, and the L-shaped pipe is clamped to reduce the phenomenon of the L-shaped pipe being offset due to thermal stress, thereby reducing the probability of the weld of the L-shaped pipe being deformed or broken during the rotational welding process, and the hole 403 is used to prevent the welding point of the L-shaped pipe from contacting the pressure plate 41 to prevent the welding head 202 from contacting and being affected by the pressure plate 41 during use.

[0025] After the L-shaped pipe is clamped, in this embodiment, the operator can drive the bevel gear 301 to rotate through an external power source, and the bevel gear 301 drives the round table 302 to rotate. The round table 302 drives the fixed part of the reciprocating telescopic rod 2 to rotate through the disc 303, and the fixed part of the reciprocating telescopic rod 2 drives the first limit pin 203 thereon to rotate, so that the first limit pin 203 moves along the adjacent arc groove 204, and the telescopic part of the reciprocating telescopic rod 2 gradually extends. When the rotating disk 102 starts to drive the L-shaped pipe on it to rotate, the reciprocating telescopic rod 2 The telescopic portion gradually extends out and drives the welding head 202 to move through the connecting frame 201, so that the welding head 202 moves along the inclined direction of the oblique incision of the L-shaped pipe, and welds the oblique incision of the L-shaped pipe as the L-shaped pipe rotates. After the rotating disk 102 drives the L-shaped pipe thereon to rotate 180°, the transmission assembly 3 drives the reciprocating telescopic rod 2 to rotate in the opposite direction, and the telescopic portion of the reciprocating telescopic rod 2 gradually contracts and drives the welding head 202 to move through the connecting frame 201, so that the welding head 202 completes the circumferential welding of the oblique incision of the L-shaped pipe.

[0026] When the L-shaped pipe is welded, the operator turns off the external motor and the external power source through the control terminal, then removes and collects the welded L-shaped pipe, and finally cleans the device for next use.

[0027] Example 2: Figure 6-Figure 9As shown, the present invention also includes: a transmission 501, which is installed on the rotating base 11, and the input shaft of the transmission 501 is driven by the external motor in the rotating base 11, and the output shaft of the transmission 501 is fixedly connected with the incomplete bevel wheel 503 with central symmetrical distribution, and the incomplete bevel wheel 503 is used to drive the bevel gear 301; a first hydraulic telescopic rod 502, which is fixedly connected to the rotating base 11, and the telescopic part of the first hydraulic telescopic rod 502 is fixedly connected to the speed change shaft of the transmission 501, and the transmission 501 changes the meshing state of its internal gear set by sliding its speed change shaft up and down to achieve the speed change effect of the transmission 501, the angle covered by all teeth of the incomplete bevel wheel 503 is A, and the contact angle between the incomplete bevel wheel 503 and the bevel gear 301 is B, and A is less than 180°-B.

[0028] like Figure 6 , Figure 8 and Fig. 9 As shown, it also includes: a second hydraulic telescopic rod 6, which is fixed to the rotating disk 102, and the telescopic part of the second hydraulic telescopic rod 6 is fixed to the clamping member 103; a first shell 601, which is fixed to the fixed disk 101, and the first shell 601 is sealed and rotatably connected to the second shell 602 communicated with the interior thereof, the second hydraulic telescopic rod 6 is communicated with the interior of the second shell 602 through the first conduit, and the first shell 601 is communicated with the first hydraulic telescopic rod 502 through the second conduit.

[0029] The invention is intended to adapt to the welding of L-shaped pipes of different sizes. Specifically, the two incomplete bevel wheels 503 rotate in one direction. When one incomplete bevel wheel 503 meshes with the bevel gear 301, the incomplete bevel wheel 503 drives the bevel gear 301 to rotate. When the other incomplete bevel wheel 503 meshes with the bevel gear 301, the incomplete bevel wheel 503 drives the bevel gear 301 to rotate in the opposite direction. The bevel gear 301 is controlled to rotate back and forth by the unidirectional rotation of the two incomplete bevel wheels 503. After one incomplete bevel wheel 503 starts to mesh with the bevel gear 301, the outer bevel gear 301 is rotated in the opposite direction. Every time the output shaft of the motor rotates 180°, the incomplete bevel wheel 503 loses meshing with the bevel gear 301. Since A<180°-B, the two incomplete bevel wheels 503 lose meshing with the bevel gear 301 at this time to prevent the incomplete bevel wheels 503 and the bevel gear 301 from getting stuck. The first conduit of the second hydraulic telescopic rod 6 and the second conduit of the first housing 601 are both made of hard materials. For example, the first conduit and the second conduit can be hard plastic pipes or metal pipes to reduce the probability of damage to the first conduit and the second conduit during the rotation of the rotating disk 102.

[0030] Specific working principle: In this embodiment, when the output shaft of the external motor drives the rotating disk 102 to rotate, the external motor drives the bevel gear 301 through the transmission 501 and the two incomplete bevel wheels 503 in sequence, and the bevel gear 301 drives the circular table 302 through the above steps.

[0031] When the diameter of the L-shaped pipe to be welded increases, the position of the clamping block of the clamping piece 103 changes, so that the telescopic part of the second hydraulic telescopic rod 6 shrinks, and the hydraulic oil in the second hydraulic telescopic rod 6 is squeezed into the first housing 601 and the second housing 602 through its first conduit, and then the hydraulic oil in the first housing 601 is squeezed into the first hydraulic telescopic rod 502, so that the telescopic part of the first hydraulic telescopic rod 502 extends, and the telescopic part of the first hydraulic telescopic rod 502 drives the speed change shaft of the transmission 501 to move, so that the transmission ratio of the transmission 501 is reduced, and the rotation speed of the two incomplete bevel wheels 503 is slowed down. The incomplete bevel wheel 503 drives the reciprocating telescopic rod 2 to rotate through the bevel gear 301, the frustum 302 and the disc 303 in sequence through the above steps, and the telescopic part of the reciprocating telescopic rod 2 drives the welding head 202 to move slower through the connecting frame 201, thereby increasing the welding time of the L-shaped pipe with a larger diameter to adapt to the welding distance of the large diameter pipe, thereby increasing the applicability of the device.

[0032] Example 3: Figure 7 , Figure 8 and Fig.12 As shown, the present invention also includes: a rotating telescopic rod 7, which is rotatably connected to the fixed disk 101, the fixed part of the rotating telescopic rod 7 and the output shaft of the external motor are transmitted through a transmission member, the telescopic part of the rotating telescopic rod 7 is rotatably connected to the disk 303 through a rotating ring, a second limiting pin 701 is fixedly connected to the fixed part of the rotating telescopic rod 7, and the telescopic part of the rotating telescopic rod 7 is provided with an annular groove 702, and the annular groove 702 is used to limit the second limiting pin 701.

[0033] The purpose is to make the welding degree of different positions of the oblique incision on the L-shaped pipe evenly distributed. Specifically, the transmission member between the fixed part of the rotating telescopic rod 7 and the output shaft of the external motor is composed of two pulleys and a belt. The operator can adjust the transmission ratio of the transmission member by pre-setting the diameters of the two pulleys. When the output shaft of the external motor drives the rotating disk 102 to rotate, the output shaft of the external motor drives the rotating telescopic rod 7 to rotate through the transmission member, so that the rotating telescopic rod 7 drives the second limit pin 701 to rotate, and the second limit pin 701 moves along the annular groove 702. The telescopic part of the rotating telescopic rod 7 reciprocates and telescopes. The telescopic part of the rotating telescopic rod 7 first drives the disc 303 to move upward through the rotating ring. The disc 303 first moves upward along the truncated table 302. The rotation speed of the disc 303 gradually slows down to adapt to the upward deviation of the L-shaped pipe weld, resulting in an increase in the welding length required for a unit arc of the L-shaped pipe (i.e. Fig.12), after the rotating disk 102 rotates 180°, the rotating telescopic rod 7 also rotates 180°. At this time, the telescopic portion of the rotating telescopic rod 7 starts to drive the disc 303 to move downward through the rotating ring, so that the disc 303 moves downward along the truncated table 302 and gradually accelerates its rotation, so that the disc 303 drives the reciprocating telescopic rod 2 to rotate at a variable speed, and the reciprocating telescopic rod 2 drives the welding head 202 to retract at a variable speed through the connecting frame 201 to adapt to the upward deviation of the L-shaped pipe weld, resulting in an increase in the welding length required for a unit arc of the L-shaped pipe, thereby avoiding insufficient welding time at a longer welding distance of the L-shaped pipe, thereby preventing insufficient welding strength at a longer welding distance of the L-shaped pipe, and affecting the quality of the L-shaped pipe welding.

[0034] Example 4: Fig.11 As shown, the present invention also includes: a third hydraulic telescopic rod 8, which is fixedly connected to the connecting frame 201, the welding head 202 is slidably connected to the connecting frame 201, the telescopic part of the third hydraulic telescopic rod 8 is fixedly connected to the welding head 202, and the third hydraulic telescopic rod 8 is connected to the first shell 601 through a third conduit.

[0035] The invention is intended to adapt to the welding of L-shaped pipes of different diameters. Specifically, in the above embodiment, the welding head 202 is fixedly connected to the connecting frame 201. In the present embodiment, the welding head 202 is slidably connected to the connecting frame 201. When the diameter of the L-shaped pipe to be welded changes, taking the increase of the diameter of the L-shaped pipe as an example, the position of the clamping block of the clamping member 103 changes, so that the telescopic portion of the second hydraulic telescopic rod 6 contracts, and the hydraulic oil in the second hydraulic telescopic rod 6 is squeezed into the first shell 601 and the second shell 602 through its first conduit, and the hydraulic oil in the first shell 601 is squeezed into the third hydraulic telescopic rod 8. The telescopic portion of the third hydraulic telescopic rod 8 drives the welding head 202 to move to the right, changing the position of the welding head 202 to adapt to the changes in the welding points of L-shaped pipes of different diameters, thereby improving the applicability of the present device.

[0036] Example 5: Figure 1-Figure 12 As shown, a method for using an intelligent welding positioner is based on the above-mentioned intelligent welding positioner, and the specific steps are as follows: Step 1: When the device is required to be used to weld an L-shaped pipe, the L-shaped pipe is clamped by the clamping member 103, the sliding block 401 and the clamping block 402, and the position of the welding head 202 is adjusted to align the welding head 202 with the weld of the L-shaped pipe; Step 2: After the clamping member 103 clamps the L-shaped pipe, the clamping member 103 drives the telescopic portion of the second hydraulic telescopic rod 6 to move according to the diameter of the L-shaped pipe. The second hydraulic telescopic rod 6 moves the telescopic portion of the first hydraulic telescopic rod 502 through hydraulic transmission. The telescopic portion of the first hydraulic telescopic rod 502 drives the speed change shaft of the transmission 501 to move, so as to adjust the transmission ratio of the transmission 501. The movement speed of the welding head 202 is adjusted through transmission. Step 3: When the second hydraulic telescopic rod 6 moves the telescopic portion of the first hydraulic telescopic rod 502 through hydraulic transmission, the second hydraulic telescopic rod 6 synchronously extends the telescopic portion of the third hydraulic telescopic rod 8 through hydraulic transmission and drives the welding head 202 to move, so that the welding head 202 is close to the L-shaped pipes of different diameters; Step 4: Start the external motor, which drives the rotating telescopic rod 7 through the transmission member, so that the telescopic part of the rotating telescopic rod 7 is extended and retracted and drives the disc 303 to move, and adjust the transmission ratio between the round table 302 and the disc 303 to make the telescopic part of the reciprocating telescopic rod 2 retract and retract at a variable speed; Step 5: After the external motor is turned on, the external motor drives the L-shaped pipe to rotate through the rotating disk 102. At the same time, the disc 303 drives the reciprocating telescopic rod 2. The telescopic part of the reciprocating telescopic rod 2 drives the welding head 202 to move back and forth through the connecting frame 201 to weld the L-shaped pipe; Step 6: When the L-shaped pipe is welded, turn off the power of the device, then remove and collect the welded L-shaped pipe, and finally clean the device for the next use.

[0037] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent welding positioner, characterized in that: include: A support frame (1), the support frame (1) being rotatably connected to a rotating base (11), the rotating base (11) being fixedly connected to a fixed disk (101), the fixed disk (101) being rotatably connected to a rotating disk (102), the rotating disk (102) being provided with a clamping member (103), the support frame (1) being provided with an adjuster (104), the adjuster (104) being used to drive the rotating base (11) to rotate, and an external motor being provided inside the rotating base (11) for driving the rotating disk (102) to rotate; A reciprocating telescopic rod (2) is rotatably connected to the rotating base (11); the telescopic portion of the reciprocating telescopic rod (2) is slidably connected to a connecting frame (201); and the connecting frame (201) is provided with a welding head (202); A transmission assembly (3) is arranged on the rotating base (11) and is used to drive the reciprocating telescopic rod (2) to rotate reciprocatingly; A sliding rod (4) is slidably connected to the fixed plate (101), a first elastic member is fixedly connected between the sliding rod (4) and the fixed plate (101), the sliding rod (4) is rotatably connected to a pressure plate (41), the pressure plate (41) is slidably connected to a sliding block (401), a second elastic member is fixedly connected between the pressure plate (41) and the sliding block (401), the sliding block (401) is slidably connected to a clamping block (402), and a third elastic member is fixedly connected between the sliding block (401) and the clamping block (402).

2. The intelligent welding positioner according to claim 1, characterized in that: The pressure plate (41) is provided with a hole (403), the diameter of the hole (403) is larger than the diameter of the welded pipe, and the axis of the hole (403) is colinear with the axis of the rotating plate (102).

3. The intelligent welding positioner according to claim 2, characterized in that: A first limiting pin (203) is fixedly connected to the fixed portion of the reciprocating telescopic rod (2), and the telescopic portion of the reciprocating telescopic rod (2) is provided with symmetrically distributed arc grooves (204), and the arc grooves (204) are used to limit the first limiting pin (203).

4. The intelligent welding positioner according to claim 3, characterized in that: The transmission assembly (3) comprises: A bevel gear (301) is rotatably connected to the rotating base (11), and the bevel gear (301) is coaxially connected to a frustum (302); The disc (303) is fixedly connected to the fixed portion of the reciprocating telescopic rod (2), and the round table (302) is used to drive the disc (303).

5. The intelligent welding positioner according to claim 4, characterized in that: Also includes: A transmission (501) is mounted on the rotating base (11); an input shaft of the transmission (501) is driven by an external motor in the rotating base (11); an output shaft of the transmission (501) is fixedly connected to an incomplete bevel gear (503) that is centrally symmetrically distributed; the incomplete bevel gear (503) is used to drive the bevel gear (301); The first hydraulic telescopic rod (502) is fixedly connected to the rotating base (11), and the telescopic portion of the first hydraulic telescopic rod (502) is fixedly connected to the transmission shaft of the transmission (501).

6. The intelligent welding positioner according to claim 5, characterized in that: The angle covered by all teeth of the incomplete bevel wheel (503) is A, the contact angle between the incomplete bevel wheel (503) and the bevel gear (301) is B, and A<180°-B.

7. The intelligent welding positioner according to claim 6, characterized in that: Also includes: A second hydraulic telescopic rod (6) is fixedly connected to the rotating disk (102), and a telescopic portion of the second hydraulic telescopic rod (6) is fixedly connected to the clamping member (103); The first shell (601) is fixedly connected to the fixed plate (101); the first shell (601) is sealingly rotatably connected to a second shell (602) which is in communication with the interior thereof; the second hydraulic telescopic rod (6) is in communication with the interior of the second shell (602) via a first conduit; and the first shell (601) is in communication with the first hydraulic telescopic rod (502) via a second conduit.

8. The intelligent welding positioner according to claim 7, characterized in that: Also includes: The rotating telescopic rod (7) is rotatably connected to the fixed disk (101); the fixed portion of the rotating telescopic rod (7) and the output shaft of the external motor are transmitted via a transmission member; the telescopic portion of the rotating telescopic rod (7) is rotatably connected to the disk (303) via a rotating ring; a second limiting pin (701) is fixedly connected to the fixed portion of the rotating telescopic rod (7); the telescopic portion of the rotating telescopic rod (7) is provided with an annular groove (702); the annular groove (702) is used to limit the second limiting pin (701).

9. The intelligent welding positioner according to claim 8, characterized in that: Also includes: A third hydraulic telescopic rod (8) is fixedly connected to the connecting frame (201), the welding head (202) is slidably connected to the connecting frame (201), the telescopic portion of the third hydraulic telescopic rod (8) is fixedly connected to the welding head (202), and the third hydraulic telescopic rod (8) is connected to the first housing (601) via a third conduit.

10. A method for using an intelligent welding positioner, characterized in that: According to the intelligent welding positioner of claim 9, the specific method of use is as follows: Step 1: When the device is required to be used to weld an L-shaped pipe, the L-shaped pipe is clamped by the clamping member (103), the sliding block (401) and the clamping block (402), and the position of the welding head (202) is adjusted so that the welding head (202) is aligned with the weld of the L-shaped pipe; Step 2: After the clamping member (103) clamps the L-shaped pipe, the clamping member (103) drives the telescopic portion of the second hydraulic telescopic rod (6) to move according to the diameter of the L-shaped pipe. The second hydraulic telescopic rod (6) drives the telescopic portion of the first hydraulic telescopic rod (502) to move through hydraulic transmission. The telescopic portion of the first hydraulic telescopic rod (502) drives the speed change shaft of the transmission (501) to move, so as to adjust the transmission ratio of the transmission (501). The movement speed of the welding head (202) is adjusted through transmission. Step 3: When the second hydraulic telescopic rod (6) moves the telescopic portion of the first hydraulic telescopic rod (502) through hydraulic transmission, the second hydraulic telescopic rod (6) synchronously extends the telescopic portion of the third hydraulic telescopic rod (8) through hydraulic transmission and drives the welding head (202) to move, so that the welding head (202) is closely attached to L-shaped pipes of different diameters; Step 4: starting the external motor, which drives the rotating telescopic rod (7) through the transmission member, so that the telescopic portion of the rotating telescopic rod (7) is extended and retracted and drives the disc (303) to move, and adjusting the transmission ratio between the round table (302) and the disc (303) so that the telescopic portion of the reciprocating telescopic rod (2) is retracted and retracted at a variable speed; Step 5: After the external motor is turned on, the external motor drives the L-shaped pipe to rotate through the rotating disk (102), and at the same time the disc (303) drives the reciprocating telescopic rod (2), and the telescopic portion of the reciprocating telescopic rod (2) drives the welding head (202) to move back and forth through the connecting frame (201), thereby welding the L-shaped pipe; Step 6: When the L-shaped pipe is welded, turn off the power of the device, then remove and collect the welded L-shaped pipe, and finally clean the device for the next use.

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