A seam welder

Abstract

This technical solution belongs to the technical field of pressure welding equipment, specifically relating to a pressure welding machine. It has a first station for rotating and positioning pipe fittings and a second station for pressure welding of pipe fittings, including a machine base; a first feeding device for conveying pipe fittings to a second feeding device at the first station; a weld seam finding device for receiving and rotating the pipe fittings conveyed by the first feeding device, with the weld seam of the pipe fitting facing a specified direction; a second feeding device installed at the first station on the machine base for transferring pipe fittings to a fixing device at the second station; a fixing device for fixing the pipe fittings; and a pressure welding device including a pressure welding assembly and an inner support assembly for internal support of the pipe fitting. The pressure welding assembly is movably mounted on the machine base and erected above the fixing device, with pressure welding rollers at its lower part to press against the weld seam. This decomposes the pipe fitting processing flow into a coordinated operation between the first station (rotational positioning) and the second station (pressure welding), improving equipment utilization and overall operational efficiency.

Description

Technical Field

[0001] This technical solution relates to the field of pressure welding equipment, and specifically refers to a pressure welding machine. Background Technology

[0002] Pressure welding is a processing technique that uses pressure to achieve a smooth metal connection. It is designed to address the issue that after welding the tube of a thermos, the protrusion at the weld seam can affect the accuracy and quality of subsequent processing. Pressure welding equipment flattens the protrusion, eliminates the weld excess, and restores the outer surface of the tube to a smooth surface, ensuring that the product can be smoothly processed in subsequent steps.

[0003] The existing pressure welding device for thermos cup tubes works by transferring the workpiece to the processing station, rotating and adjusting the workpiece so that the weld seam on the workpiece faces the pressure welding device, inserting a pressure-bearing column into the workpiece, and then driving the pressure welding device to perform pressure welding. In the entire pressure welding cycle of completing one workpiece, the processing steps must be performed sequentially, and the various actuators in the device are in a waiting or idle state most of the time, resulting in low work efficiency. Utility Model Content

[0004] This technical solution provides a pressure welding machine to improve the problems of long waiting time and low operation efficiency caused by the concentration of processing steps.

[0005] The purpose of this technical solution is achieved as follows: A pressure welding machine has a first station for rotating and positioning a pipe fitting, a second station for pressure welding the pipe fitting, and a machine base; The first feeding device is mounted on the machine base and is used to feed pipe fittings to the second feeding device at the first station; A weld seam positioning device is installed on the machine base to receive and rotate the pipe fittings conveyed by the first feeding device, so that the weld seam of the pipe fittings faces the specified direction. The second feeding device is installed at the first station of the machine base and is used to transfer the pipe fittings to the material holding device at the second station. A material securing device, installed at the second station of the machine base, is used to secure the pipe fittings; A seam pressing device includes a seam pressing component and an inner support component. The inner support component is used to provide internal support for the inside of the pipe fitting. The seam pressing component is movably mounted on a base and erected above a material fixing device. A seam pressing roller for pressing the weld seam is provided at the lower part of the seam pressing component.

[0006] Through the above technical solution, when a seam pressing machine is in normal use, after the equipment is started, the first feeding device first transports the pipe to be processed to the second feeding device at the first station. Then, the weld seam positioning device rotates the pipe and adjusts its weld seam to the preset designated direction to facilitate subsequent seam pressing. The second feeding device transfers the pipe from the first station to the material fixing device at the second station. The material fixing device clamps and fixes the outer wall of the pipe, while the internal support component provides internal support for the pipe, effectively preventing seam pressing deformation. At the same time, the first station re-prepares the material, and the seam pressing component presses the weld seam with the lower seam pressing roller to perform rolling processing. The pipe processing flow is decomposed into the first station (rotation positioning) and the second station (seam pressing processing) working together, shortening the waiting interval and improving equipment utilization and overall operation efficiency.

[0007] Preferably, the first feeding device includes: A feeding conveyor belt is used to transport pipe fittings. The end of the feeding conveyor belt along the conveying direction is provided with a baffle for stopping the pipe fittings. The push assembly includes a push plate and a push drive component. The push plate is slidably connected to the machine base, and the push drive component drives the push plate to move in the direction of the feeding conveyor belt, for pushing the pipe from the feeding conveyor belt into the second feeding device.

[0008] Through the above technical solution, the feeding conveyor belt continuously pushes the pipe along the conveying direction. When it reaches the end of the conveyor belt, it is reliably stopped at the position by the preset baffle. The pusher drive drives the pusher plate, which is slidably connected to the machine base, to move towards the conveyor belt. The pusher plate pushes the pipe away from the conveyor belt and into the first station, establishing a reliable automated conveying for the material flow from the raw material to the first station and ensuring the stability of the continuous operation of the whole machine.

[0009] Preferably, the weld seam locating device includes: A weld seam identifier, mounted above the second feeding device, is used to identify the weld seams of the pipe fittings; The first abutting component includes a sliding seat that slides on the machine base, an abutting cone that is rotatably disposed on the sliding seat, and an elastic component. The abutting cone is slidably disposed on the sliding seat via a sliding sleeve. The elastic component is sleeved on the rod portion behind the abutting cone, and both ends of the elastic component are respectively close to the abutting cone and the sliding sleeve. The second abutment is disposed opposite to the first abutment and includes a second sliding seat that slides on the machine base, a steering drive and a second abutting cone, wherein the second abutting cone is rotatably disposed on the second sliding seat. A material-abutting drive is mounted on the machine base. The material-abutting drive drives the second abutting cone to move toward the first abutting cone. The second abutting cone and the first abutting cone respectively abut against the two ends of the pipe. The steering drive drives the second abutting cone to rotate and drives the first abutting cone to rotate synchronously with the pipe until the weld seam of the pipe faces the weld seam identifier.

[0010] With the above technical solution, after the pipe fitting is fixed by the second feeding device, the second abutting member set opposite to it is driven by the abutting drive member to slide linearly with the second abutting cone, and together with the first abutting cone, completes the axial clamping of both ends of the pipe fitting. The first abutting cone provides elastic buffer through the elastic member. Then, the steering drive member drives the second abutting cone to rotate, and the torque is transmitted to the first abutting cone through the pipe fitting body, thereby driving the entire pipe fitting to rotate smoothly. Because there is a color difference between the weld and the pipe fitting, the weld seam identifier can use color recognition to monitor the color change in real time until the weld seam is detected, and a stop signal is issued to complete the directional rotation process.

[0011] Preferably, the second feeding device includes: At least two trays, each of which has a placement groove formed on it; The feeding assembly includes a gripper cylinder and a moving assembly. The gripper cylinder holds the pipe in the placement slot, and the moving assembly drives the gripper cylinder to move to transfer the pipe to the solidification device.

[0012] With the above technical solution, after the pipe is pushed away from the conveyor belt, it will fall on two pallets, which will facilitate the subsequent clamping and rotation of the pipe by the first and second abutment components. After the weld is rotated into place, the gripper cylinder clamps the pipe, and the moving component drives the gripper cylinder and the pipe to move, transferring the pipe to the positioning area of ​​the material fixing device in the second station. After the transfer is completed, the gripper cylinder releases the pipe and resets, ready to execute the next round of transfer.

[0013] Preferably, the material-fixing device includes at least two material-fixing claws for clamping and positioning the pipe fitting.

[0014] With the above technical solution, after the pipe is transferred to the second station by the second feeding device, at least two material clamps close synchronously under the action of the driving mechanism (such as a cylinder). The material clamps accurately cover the outer wall of the pipe and fix the pipe to restrict its movement.

[0015] Preferably, the inner support component includes: A sliding bracket, which is movably mounted on the base; An inner core rod is disposed on the sliding bracket, and the size of the inner core rod matches the pipe hole of the fitting; A material-fixing drive component is disposed on the machine base. The material-fixing drive component drives the sliding bracket to move, thereby causing the inner core rod to move synchronously.

[0016] Through the above technical solution, after the pipe fitting is clamped and fixed by multiple material clamps, the material driving component drives the sliding bracket to move axially toward the pipe fitting along the linear guide rail, so that the inner core rod is aligned with the pipe fitting and inserted to form an inner support skeleton, preventing the pipe wall from being dented due to pressure during the pressing process, and ensuring the finished product qualification rate of the pipe fitting after pressing.

[0017] Preferably, the seam sealing assembly includes: The frame is mounted above the material securing device; The seam pressing feed assembly includes a seam pressing frame 1 that slides on the frame body, a seam pressing frame 2 that is disposed on the seam pressing frame 1, and a seam pressing drive. The seam pressing frame 2 is slidably disposed on the seam pressing frame 1, and the sliding direction of the seam pressing frame 2 is perpendicular to that of the seam pressing frame 1. The seam pressing roller is rotatably disposed at the lower part of the seam pressing frame 2. The seam pressing drive drives the seam pressing frame 2 to move, thereby causing the seam pressing roller to press downward against the outer wall of the pipe fitting. A movable drive unit, which is mounted on the frame, drives the seam pressing frame to slide, thereby driving the seam pressing roller to roll the weld seam along the length of the pipe.

[0018] Through the above technical solution, the seam pressing drive first drives the seam pressing frame two to slide in the vertical direction, so that the seam pressing roller at its lower end presses against one end of the pipe fitting, and the seam pressing roller accurately presses against the weld. The moving drive drives the seam pressing frame one to slide, causing the seam pressing frame two and its roller to move at a constant speed along the weld track, thereby performing the seam pressing operation.

[0019] Preferably, the base is provided with a support frame, and the end of the support frame is provided with a support wheel for supporting the end of the support component.

[0020] Through the above technical solution, during the pressing process of the pressing roller, the end of the pipe fitting abuts against the bearing roller, and the bearing roller provides support, which avoids the pipe fitting bending when the pressing roller presses down, thus improving production quality.

[0021] Preferably, it further includes a feeding device, the feeding device comprising: A feeding conveyor belt is used to transport pipe fittings to the feeding station, and a baffle plate is provided at the end of the feeding conveyor belt along the conveying direction. The guide frame has a guide slope on its upper end face, which is inclined downward toward the direction of the feeding conveyor belt. The material fixing device also includes a fixed material driving component corresponding to the material fixing claw. The fixed material driving component is used to drive the material fixing claw to move so that the pipe can fall on the guide slope. A feeding assembly is disposed beside the feeding conveyor belt. The feeding assembly includes a feeding cylinder and a feeding pusher plate. The feeding pusher plate is movable relative to the feeding conveyor belt. The feeding cylinder drives the feeding pusher plate to move in order to push the pipe into the feeding bin.

[0022] With the above technical solution, after the pipe fitting is crimped, the fixed material drive unit drives the corresponding material clamp to descend, and the material clamp releases the pipe fitting. The pipe fitting falls onto the guide frame until the position of the material clamp is lower than the guide frame. Then the pipe fitting rolls along the guide slope and falls onto the unloading conveyor belt. The unloading conveyor belt transports the pipe fitting to the unloading assembly. The unloading cylinder drives the unloading push plate to move, pushing the pipe fitting from the unloading conveyor belt into the unloading bin, thereby realizing the automated unloading of the pipe fitting and improving production efficiency.

[0023] The key and beneficial technical effects of this technical solution compared to existing technologies are: 1. This technical solution uses a weld seam locating device at the first station to rotate the pipe fitting and locate the weld seam. It then works in conjunction with a seam pressing device at the second station to perform seam pressing. The two work together and can be performed independently, which shortens the waiting time and improves equipment utilization and overall work efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a partial structural diagram of the embodiment with part of the base removed; Figure 3 This is a partially enlarged schematic diagram of the second feeding device in this embodiment; Figure 4 This embodiment Figure 2 A partial structural diagram with the first feeding device hidden; Figure 5 This embodiment Figure 4 A partial structural diagram with the weld seam locating device hidden; Figure 6 This is a partially enlarged schematic diagram of the solidification device in this embodiment; Figure 7 This embodiment Figure 1 A schematic diagram of the overall structure from another perspective.

[0025] Reference numerals: 1. Machine base; 2. First feeding device; 21. Feeding conveyor belt; 22. Pushing assembly; 221. Pushing plate; 222. Pushing drive component; 31. First abutting component; 311. Sliding seat one; 312. Abutting cone one; 313. Elastic component; 32. Second abutting component; 321. Sliding seat two; 322. Steering drive component; 323. Abutting cone two; 4. Second feeding device; 41. Pallet; 42. Feeding assembly; 421. Gripper cylinder; 5. Material fixing device; 511. Material fixing gripper; 512. Material fixing drive component; 52. Internal support assembly 521. Sliding bracket; 522. Inner core rod; 523. Material fixing drive component; 6. Seam pressing assembly; 61. Frame body; 62. Seam pressing feed assembly; 621. Seam pressing frame one; 622. Seam pressing frame two; 623. Seam pressing drive component; 63. Moving drive component; 601. Seam pressing roller; 7. Unloading device; 71. Unloading conveyor belt; 72. Guide frame; 73. Unloading assembly; 731. Unloading cylinder; 732. Unloading push plate; 8. Baffle component; 9. Placement groove; 10. Bearing frame; 11. Bearing wheel; 12. Barrier plate; 13. Guide slope; 14. Unloading bin. Detailed Implementation

[0026] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0027] Example: See Figure 1 A pressure welding machine has a first station for rotating and positioning pipe fittings and a second station for pressure welding of pipe fittings. The pressure welding machine includes a base 1, a first feeding device 2, a weld seam finding device, a second feeding device 4, a material fixing device 5, and a pressure welding device mounted on the base 1. The first feeding device 2 transports the unprocessed pipe fitting to the first station. The weld seam finding device rotates the pipe fitting at the first station to determine the position of the weld seam. The second feeding device 4 transfers the workpiece to the second station. The material fixing device 5 constrains the pipe fitting. The pressure welding device performs pressure welding on the pipe fitting. Finally, the finished pipe fitting is sent out to the unloading bin 14 by the unloading device 7.

[0028] See Figure 2 and Figure 3 The first feeding device 2 includes a feeding conveyor belt 21 and a pushing assembly 22. The feeding conveyor belt 21 is existing technology and will not be described in detail here. It feeds the pipe into the machine base 1 along the length direction through the conveyor belt structure. The side of the machine base 1 has a feeding port corresponding to the position of the feeding conveyor belt 21. The feeding conveyor belt 21 is provided with baffles on both sides along the conveying direction to prevent the pipe from falling off. The end of the feeding conveyor belt 21 along the conveying direction is provided with a baffle 8 for stopping the pipe by contacting it.

[0029] The push assembly 22 is located at the end of the feeding conveyor belt 21 along the conveying direction, and specifically on the outside of the feeding conveyor belt 21 away from the second feeding device 4. The push assembly 22 includes a push plate 221 and a push drive 222. The push plate 221 is slidably connected to the base 1 and is located at the output end of the push drive 222. The push drive 222 is preferably a cylinder. The push drive 222 drives the push plate 221 to move back and forth, so that the push plate 221 moves in the direction of the feeding conveyor belt 21, which can push the pipes on the feeding conveyor belt 21 toward the second feeding device 4. The second feeding device 4 includes at least two pallets 41. Each pallet 41 has a placement groove 9 formed on it. The groove is V-shaped. Multiple pallets 41 work together to receive and place the pipes from the first feeding device 2. At this time, the pipes are in the first working position.

[0030] See Figure 4 The weld seam locating device includes a weld seam identifier, a first abutment member 31, a second abutment member 32, and an abutment drive member. The first abutment member 31 and the second abutment member 32 are respectively arranged on opposite sides of the machine base 1. The first abutment member 31 includes a sliding seat 311, an abutment cone 312, and an elastic member 313. The sliding seat 311 is slidably connected to the machine base 1 through a slide rail structure. The abutment cone 312 is slidably connected to the sliding seat 311 through a sliding sleeve and can move relative to the sliding seat 311 within the sliding sleeve. The rotating cone 312 has a sliding direction parallel to the sliding direction of the sliding seat 311. In this embodiment, the abutting cone 312 includes a cone-shaped section at the front end and a rod at the rear end. The elastic member 313 is sleeved on the rod of the abutting cone, and its two ends abut against the cone section of the abutting cone and the sliding seat, respectively. Its elasticity makes the abutting cone 312 tend to slide away from the sliding seat 311. The end of the rod has an anti-disengagement protrusion ring for limiting the abutting cone 312 from disengaging from the sliding seat 311.

[0031] The second abutment 32 includes a second sliding seat 321, a steering drive 322, and a second abutment cone 323. The second sliding seat 321 is slidably connected to the machine base 1 via a slide rail structure, and its sliding direction corresponds to the sliding direction of the first sliding seat 311. The steering drive 322 is mounted on the second sliding seat 321 and is preferably a motor. The second abutment cone 323 is on the same axis as the first abutment cone 312, and its rear end is rotatably connected to the output end of the steering drive 322. The abutment drive drives the second sliding seat 321 to approach the first sliding seat 311, and the cone of the second abutment cone 323 abuts against the opening at one end of the pipe, continuously pushing the pipe until the cone of the first abutment cone 312 abuts against the opening at the other end of the pipe, forming abutment against both ends of the pipe. Upon reaching the limit position, the steering drive 322 drives the second abutment cone 323 to rotate, and drives the first abutment cone 312 to rotate synchronously with the pipe. The weld seam identifier is mounted above the first workstation, with its lens facing the pipe. After rotating the pipe until the weld seam position faces the weld seam identifier, the weld seam identifier recognizes the weld seam and issues a command to stop the rotation of the steering drive 322. The first abutment 31 and the second abutment 32 are reset, and the pipe is placed back on the pallet 41. The second loading device 4 also includes a loading assembly 42, which specifically includes a gripper cylinder 421 and a moving assembly. The gripper cylinder 421 clamps the pipe in the placement slot 9, and the moving assembly drives the gripper cylinder 421 to move, which is used to transfer the pipe to the solidification device 5.

[0032] See Figure 5 and Figure 6 The material securing device 5 is located at the second station of the machine base 1. It includes at least two material securing claws 511 and a fixed material driving member 512 that is arranged one-to-one with the material securing claws 511. The two material securing claws 511 cooperate to clamp the pipes transferred by the second feeding device 4.

[0033] The seam pressing device includes a seam pressing assembly 6 and an inner support assembly 52. ​​The inner support assembly 52 includes a sliding bracket 521, an inner core rod 522, and a material fixing drive 523. The sliding bracket 521 is slidably connected to the frame via a slide rail structure, and its sliding direction is horizontal. The inner core rod 522 is fixed on the sliding bracket 521, and its size matches the pipe hole of the fitting. The material fixing drive 523 is installed on the machine base 1 and drives the sliding bracket 521 to slide. The inner core rod 522 is on the same axis as the fitting and is inserted into the pipe hole of the fitting. The machine base 1 is provided with a bearing frame 10, and a bearing wheel 11 is rotatably provided at the upper end of the bearing frame 10. The end of the inner core rod 522 that protrudes from the fitting abuts against the bearing wheel 11. At this time, the fitting is in the second working position.

[0034] The seam pressing assembly includes a frame 61, a seam pressing feed assembly 62, and a moving drive component 63. The frame 61 is mounted on the base 1 and is positioned above the material fixing device 5. The seam pressing feed assembly 62 includes a first seam pressing frame 621, a second seam pressing frame 622, and a seam pressing drive component 623. The first seam pressing frame 621 is slidably connected to the frame 61. The slidable connection is achieved by a sliding groove provided at the upper end of the clamp. The first seam pressing frame 621 is slidably engaged in the sliding groove through a slider sliding groove structure. The second seam pressing frame 622 is slidably connected to the lower part of the first seam pressing frame 621 through a plurality of guide rod structures, and its sliding direction is perpendicular to the ground. In the sliding direction of the first pressure frame 621, the lower part of the first pressure frame 621 is rotatably connected to the pressure roller 601; the pressure drive 623 is installed on the first pressure frame 621, which drives the second pressure frame 622 to move up and down. When the second pressure frame 622 moves down, it drives the pressure roller 601 to press against the weld of the pipe fitting. The moving drive 63 is installed on the frame 61, which drives the first pressure frame 621 to move, and then drives the pressure roller 601 to move synchronously. The pressure roller 601 rolls the weld protrusion along the length of the pipe fitting. The inner core rod 522 provides support for the pipe fitting and prevents the pipe fitting from deforming during the pressure process.

[0035] See Figure 6 and Figure 7 The feeding device 7 includes a feeding conveyor belt 71, a guide frame 72, and a feeding assembly 73. A fixed-position drive unit 512 drives the corresponding material clamp 511 to descend, releasing the pipe fitting. The pipe fitting falls onto the guide frame 72. The upper surface of the guide frame 72 has a guide slope 13, which slopes downwards in the direction of the feeding conveyor belt 71 until the position of the material clamp is lower than the guide frame 72. The pipe fitting then falls onto the guide frame 72 and rolls along the guide slope 13, subsequently falling to the bottom. The material conveyor belt 71 conveys pipe fittings. At the end of the material conveyor belt 71 along the conveying direction, a stop plate 12 for stopping the pipe fittings is installed. The material unloading assembly 73 includes a material unloading cylinder 731 and a material unloading push plate 732. The material unloading push plate 732 is movable relative to the material unloading conveyor belt 71. The material unloading cylinder 731 drives the material unloading push plate 732 to move. The material unloading push plate 732 pushes the pipe fittings on the material unloading conveyor belt 71 to move, so that the pipe fittings are pushed into the material unloading bin 14, thereby completing the unloading.

[0036] The specific work process of this plan is as follows: This technical solution first uses a first feeding device 2 to transport the pipe fitting to be processed to a second feeding device 4 at the first station. Then, a weld seam positioning device rotates the pipe fitting to adjust its weld seam to a preset designated direction to facilitate subsequent seam pressing. The second feeding device 4 transfers the pipe fitting from the first station to a material fixing device 5 at the second station. The material fixing device 5 clamps and fixes the outer wall of the pipe fitting. The inner support component 52 of the seam pressing device drives the inner core rod 522 to simultaneously penetrate into the inside of the pipe fitting, providing crucial rigid inner support and effectively preventing seam pressing deformation. At the same time, the first station re-prepares the material, and the seam pressing component 6 presses the weld seam with the lower seam pressing roller 601 to perform rolling processing. The pipe fitting processing flow is decomposed into the first station (rotation positioning) and the second station (seam pressing processing) working together, shortening the waiting interval and improving equipment utilization and overall operation efficiency.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A pressure welding machine, comprising a first station for rotating and positioning a pipe fitting and a second station for pressure welding the pipe fitting, characterized in that, include: Base (1); The first feeding device (2) is installed on the machine base (1) and is used to feed pipe fittings to the second feeding device at the first station; A weld seam positioning device is installed on the machine base (1) to receive and rotate the pipe fittings conveyed by the first feeding device (2) so that the weld seam of the pipe fittings faces the specified direction. The second feeding device (4) is installed on the first station of the machine base (1) and is used to transfer the pipe fittings to the solidification device at the second station. A material securing device (5) is installed on the second station of the machine base (1) for fixing pipe fittings; The seam pressing device includes a seam pressing assembly (6) and an inner support assembly (52). The inner support assembly (52) is used to provide internal support for the inside of the pipe fitting. The seam pressing assembly (6) is movably mounted on the base (1) and erected above the material fixing device (5). The lower part of the seam pressing assembly (6) is provided with a seam pressing roller (601) for pressing the weld seam.

2. The pressure welding machine according to claim 1, characterized in that: The first feeding device (2) includes: The feeding conveyor belt (21) is used to transport pipe fittings. The feeding conveyor belt (21) is provided with a baffle (8) at the end of the conveying direction to stop the pipe fittings. The push assembly (22) includes a push plate (221) and a push drive (222). The push plate (221) is slidably connected to the base (1). The push drive (222) drives the push plate (221) to move toward the feeding conveyor belt (21) to push the pipe from the feeding conveyor belt (21) into the second feeding device (4).

3. The pressure welding machine according to claim 1, characterized in that: The weld seam locating device includes: A weld seam identifier is mounted above the second feeding device (4) and is used to identify the weld seams of the pipe fittings. The first abutment (31) includes a sliding seat (311) that slides on the machine base (1), an abutting cone (312) that is rotatably disposed on the sliding seat (311), and an elastic member (313). The abutting cone (312) is slidably disposed on the sliding seat (311) through a sliding sleeve. The elastic member (313) is sleeved on the rod portion behind the abutting cone (312). The two ends of the elastic member (313) are respectively close to the abutting cone (312) and the sliding sleeve. The second abutment (32) is arranged opposite to the first abutment (31), and includes a sliding seat (321) that slides on the machine base (1), a steering drive (322), and an abutting cone (323), wherein the abutting cone (323) is rotatably arranged on the sliding seat (321); The material abutment drive is mounted on the base (1). The material abutment drive drives the second abutment cone (323) to move toward the first abutment cone (312). The second abutment cone (323) and the first abutment cone (312) abut against the two ends of the pipe respectively. The steering drive (322) drives the second abutment cone (323) to rotate and drives the first abutment cone (312) to rotate synchronously with the pipe until the weld of the pipe faces the weld identifier.

4. The pressure welding machine according to claim 1, characterized in that: The second feeding device (4) includes: At least two trays (41), each of which has a placement groove (9) formed thereon; The feeding assembly (42) includes a gripper cylinder (421) and a moving assembly. The gripper cylinder (421) grips the pipe in the placement slot (9), and the moving assembly drives the gripper cylinder (421) to move to transfer the pipe to the solidification device (5).

5. A pressure welding machine according to claim 4, characterized in that: The material securing device (5) includes at least two material securing jaws (511) for clamping and positioning the pipe fitting.

6. The pressure welding machine according to claim 1, characterized in that: The inner support assembly (52) includes: A sliding bracket (521) is movably mounted on the base (1); An inner core rod (522) is disposed on the sliding bracket (521), the size of which matches the tube hole of the fitting; A solid material drive unit (523) is disposed on the base (1). The solid material drive unit (523) drives the sliding bracket (521) to move, thereby driving the inner core rod (522) to move synchronously.

7. A pressure welding machine according to claim 1, characterized in that: The seam sealing assembly (6) includes: The frame (61) is mounted above the material securing device (5); The seam pressing feed assembly (62) includes a seam pressing frame one (621) that slides on the frame body (61), a seam pressing frame two (622) disposed on the seam pressing frame one (621), and a seam pressing drive (623). The seam pressing frame two (622) is slidably disposed on the seam pressing frame one (621), and the sliding direction of the seam pressing frame two (622) is perpendicular to that of the seam pressing frame one (621). The seam pressing roller (601) is rotatably disposed at the lower part of the seam pressing frame two (622). The seam pressing drive (623) drives the seam pressing frame two (622) to move, so that the seam pressing roller (601) presses downward against the outer wall of the pipe. A movable drive unit (63) is provided on the frame (61). The movable drive unit (63) drives the seam pressing frame (621) to slide, thereby driving the seam pressing roller (601) to roll the weld seam along the length of the pipe.

8. A pressure welding machine according to claim 1, characterized in that: The base (1) is provided with a support frame (10), and the end of the support frame (10) is provided with a support wheel (11) for supporting the end of the support component.

9. A pressure welding machine according to claim 5, characterized in that: It also includes a feeding device (7), which includes: A feeding conveyor belt (71) is used to transport pipe fittings to the feeding station. The feeding conveyor belt (71) is provided with a baffle plate (12) at the end along the conveying direction. The guide frame (72) has a guide slope (13) on its upper end surface. The guide slope (13) is inclined downward toward the direction of the unloading conveyor belt (71). The material fixing device (5) also includes a fixed material driving member (512) corresponding to the fixed material gripper (511). The fixed material driving member (512) is used to drive the fixed material gripper (511) to move so that the pipe can fall on the guide slope (13). The unloading assembly (73) is located on the side of the unloading conveyor belt (71). The unloading assembly (73) includes an unloading cylinder (731) and an unloading push plate (732). The unloading push plate (732) is movably disposed relative to the unloading conveyor belt (71). The unloading cylinder (731) drives the unloading push plate (732) to move to push the pipe into the unloading bin (14).

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