Plastic tube welding device

Abstract

The invention discloses a plastic tube welding device. According to the scheme, a device body is divided into an upper layer and a lower layer, the upper-layer welding end comprises a welding assembly capable of moving in the Y-axis direction and the Z-axis direction, and a first limiting assembly at the lower-layer displacement end drives a plastic pipe to move in the X-axis direction and axially rotate; the welding assembly and the first limiting assembly are electrically connected with the control unit. According to the welding device provided by the scheme, by arranging the welding assembly capable of moving in the Y-axis direction and the Z-axis direction and the first limiting assembly capable of driving the plastic pipe to move in the X-axis direction and rotate in the axial direction, accurate relative movement of the welding head and the plastic pipe in multiple directions is achieved, the welding position and angle can be accurately adjusted according to different welding requirements, and the welding efficiency is improved. And the welding precision and quality are greatly improved.

Description

Technical Field

[0001] This solution relates to the technical field of plastic pipe processing, and particularly to a plastic pipe welding device. Background Art

[0002] In the field of plastic pipe welding technology, laser welding is widely used due to its high efficiency and precision. Currently, conventional laser welding devices are mostly applicable to the welding scenario of plastic pipes with a transparent upper layer and a non-transparent lower layer. The welding is achieved by laser penetrating the transparent layer and the non-transparent layer absorbing heat. This method depends on the optical difference between the two layers for the positioning of the welding interface. However, in actual production, it is often necessary to weld two plastic pipes made of transparent materials. Especially when a large-diameter plastic pipe is sleeved outside a small-diameter plastic pipe and coaxial welding needs to be achieved, the existing technology faces many challenges.

[0003] Existing welding devices lack an effective limiting and coaxial calibration mechanism. The welding head of traditional devices has limited degrees of freedom of movement, making it difficult to achieve precise welding path planning for the fitting interface of double transparent pipes. Moreover, they lack the ability to coordinate the control of laser energy and mechanical movement, and cannot achieve energy focusing and uniform fusion at the transparent material interface. Manual debugging is required repeatedly, which is cumbersome and inefficient, and difficult to meet the requirements of industrial production.

[0004] Therefore, a welding device that can be applied to the sleeve welding of double transparent plastic pipes and has functions of high-precision positioning, multi-axis linkage control, and intelligent parameter adjustment is needed. Summary of the Invention

[0005] This solution provides a plastic pipe welding device to solve the above problems.

[0006] To achieve the above object, the technical solution adopted in this solution is: a plastic pipe welding device, the device body is divided into upper and lower layers. The upper welding end includes a welding component that can be displaced in the Y-axis and Z-axis directions. The first limiting component at the lower displacement end drives the plastic pipe to be displaced in the X-axis direction and rotate axially;

[0007] The welding component and the first limiting component are electrically connected to a control unit.

[0008] Further, the device body includes a bracket and a baffle;

[0009] The welding component is connected in the cavity of the upper layer of the bracket, and the baffle on the outside of the upper layer is connected to the control unit and provided with a window.

[0010] Further, for the welding component, a first fixing member is fixed on the upper layer of the bracket and connected to a first slide rail and a second slide rail arranged perpendicular to each other. The second slide rail is slidably connected to the welding head.

[0011] Further, the welding head is vertically downward and aligned with the plastic pipe limited below on the first limiting component.

[0012] Further, for the first limiting component, the driving end of the rotary driving device is connected to a limiting claw, and the claw part of the limiting claw spreads open to limit the inner wall of the plastic pipe and drives the plastic pipe to rotate axially.

[0013] Further, the bottom of the limiting claw is slidably connected to a third slide rail, and the third slide rail is fixed inside the housing;

[0014] The housing integrates a control component, and a relief hole is opened at the top.

[0015] Further, the third slide rail is slidably connected to a third slider, and the third slider drives the limiting claw at the top of the connecting plate to slide.

[0016] Further, the other end of the connecting plate further includes a second limiting component, and the second limiting component includes a slidable supporting claw and a supporting groove.

[0017] Further, the bottom of the supporting claw is fixed to the top of a combined plate, the combined plate is fixed to the top of a fourth slider and is slidably connected to a fourth slide rail, and the fourth slide rail is arranged on the connecting plate.

[0018] Further, the other end of the combined plate fixes the supporting groove through a connecting piece, a fifth slide rail is arranged at the bottom of the supporting groove and is slidably connected to a fifth slider, and the bottom of the fifth slider is fixed to a second heightening frame.

[0019] In summary, the present solution has the following advantages:

[0020] The welding device provided by the present solution realizes the precise relative movement of the welding head and the plastic pipe in multiple directions by arranging a welding component that can be displaced in the Y-axis and Z-axis directions and a first limiting component that can drive the plastic pipe to be displaced in the X-axis direction and rotate axially, and can accurately adjust the welding position and angle according to different welding requirements, greatly improving the welding precision and quality;

[0021] The second limiting component provided by the present solution can stably support and limit the plastic pipe, avoid its shaking during welding, and further improve the welding stability and reliability; the device can adapt to the welding requirements of plastic pipes with different lengths and specifications, and has strong versatility and practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a plastic pipe welding device;

[0023] Figure 2 is the front view of the plastic pipe welding device;

[0024] Figure 3It is a schematic diagram of a welding assembly;

[0025] Figure 4 It is a top view of the first limiting component and the second limiting component;

[0026] Figure 5 It is a schematic diagram of the first limiting component and the second limiting component;

[0027] Figure 6 It is a front view of the second limiting component;

[0028] Wherein:

[0029] 100, device body; 110, bracket; 120, baffle; 121, window; 130, housing; 131, control component; 132, relief hole;

[0030] 200, control unit;

[0031] 300, welding assembly; 301, first fixing piece; 310, first slide rail; 311, first slider; 320, second slide rail; 321, second slider; 3211, connecting piece;

[0032] 400, first limiting component; 401, first heightening frame; 402, connecting plate; 410, limiting claw; 411, rotary driving device; 420, third slide rail; 421, third slider;

[0033] 500, second limiting component; 501, connecting piece; 510, supporting claw; 511, combined plate; 512, fourth slider; 513, fourth slide rail; 520, supporting groove; 521, fifth slide rail; 522, fifth slider; 523, second heightening frame. Detailed implementation mode

[0034] The following further describes the present solution in conjunction with the drawings and embodiments:

[0035] Embodiment 1:

[0036] A plastic pipe welding device, as Figure 1-6 shown, the device body 100 is divided into upper and lower layers, namely a welding end and a displacement end. The welding end includes a welding assembly 300 that can be displaced in the Y-axis and Z-axis directions. The first limiting component 400 at the displacement end drives the plastic pipe to be displaced in the X-axis direction and perform axial rotation. The welding assembly 300 and the first limiting component 400 are electrically connected to the control unit 200.

[0037] The device body 100 includes a bracket 110 and a baffle 120. The bracket 110 is a double-layer frame structure. The upper layer of the bracket 110 is the welding end, and the lower layer is the displacement end. The baffle 120 covers the welding end on the upper layer and the lower back of the bracket 110 to prevent laser leakage from harming the operator.

[0038] The baffle 120 on the upper layer of the bracket 110 includes a window 121 and a control unit 200. The window 121 facilitates the operator to observe the working condition of the laser head. The control unit 200 is electrically connected to the driving modules at the welding end and the displacement end, and is used for programming and controlling the driving structures of each module.

[0039] In the welding component 300 within the welding end, a first fixing member 301 is fixed on the upper layer of the bracket 110 and is connected to a first slide rail 310 and a second slide rail 320 that are perpendicularly arranged. The second slide rail 320 is slidably connected to the welding head.

[0040] For the first slide rail 310, the bottom is fixed on the first fixing member 301, and the top is slidably connected to a first slider 311. The first slider 311 is connected to the bottom of the second slide rail 320. The top of the second slide rail 320 is slidably connected to a second slider 321. A connecting member 3211 is provided at the top of the second slider 321, and the connecting member 3211 fixes the welding head.

[0041] Specifically, the first slide rail 310 drives the welding head to move horizontally along the Y-axis, and adjusts the position of the welding head on the Y-axis according to the welding requirements; the second slide rail 320 drives the welding head to move horizontally along the Z-axis, and adjusts the position of the welding head on the Z-axis according to the welding requirements.

[0042] The welding head is vertically downward to weld the plastic pipe at the bottom. In this solution, the welding head generates a laser beam with a wavelength in the range of 300 μm to 2000 μm.

[0043] During the welding process, the plastic pipe is displaced in the X-axis direction and axially rotated under the drive of the first limiting component 400.

[0044] The displacement end includes a first limiting component 400 and a second limiting component 500.

[0045] The first limiting component 400 includes a limiting claw 410 and a third slide rail 420. The limiting claw 410 is connected to a rotation driving device 411 to drive the plastic pipe to axially rotate; the third slide rail 420 is slidably connected to the limiting claw 410.

[0046] After the limiting claw 410 and the plastic pipe are combined, they are limited inside the plastic pipe. The limiting claw 410 abuts against the inner wall of the plastic pipe by expanding outward, so as to realize the circumferential limitation of the plastic pipe.

[0047] The rotation drive device 411 is connected to the limit claw 410. After the limit claw 410 completes the limitation of the plastic pipe, the rotation drive device 411 drives the limit claw 410 to rotate, and the limit claw 410 drives the plastic pipe to rotate synchronously through the frictional force between the inner wall of the plastic pipe.

[0048] The third slide rail 420 is fixed on the first elevation 401 inside the housing. The third slide rail 420 is slidably connected to the third slider 421. The third slider 421 fixes the connecting plate 402, and one end of the connecting plate 402 fixes the limit claw 410. Specifically, according to the length of the plastic pipe and the position of the welding point, the third slide rail 420 drives the limit claw 410 and drives the plastic pipe inside the limit claw 410 to move horizontally along the X-axis to adjust the position of the plastic pipe on the X-axis.

[0049] The first slide rail 310, the second slide rail 320, and the third slide rail 420 are electric slide rails with their own drive structures, which are well-known prior arts to those skilled in the art and will not be elaborated here.

[0050] The rotation drive device 411 is a rotation motor in this embodiment, which is a well-known prior art to those skilled in the art and will not be elaborated here.

[0051] The housing 130 integrates a control component 131 for manually adjusting the rotation drive device 411 and the third slide rail 420, controlling the rotation of the limit claw 410 driving the plastic pipe and the welding position of the plastic pipe on the X-axis. A relief hole 132 is opened at the top of the housing 130 to avoid the sliding path of the third slider 421 on the third slide rail 420.

[0052] The second limiting component 500 includes a support claw 510 and a support groove 520, which are used to limit and support the plastic pipe to prevent the plastic pipe from shaking during the rotary welding process, resulting in welding point errors. When the plastic pipe is limited on the first limiting component 400 and the second limiting component 500, it remains in a horizontal state. The distance between the second limiting component 500 and the first limiting component 400 can be adjusted by manually pushing and pulling the second limiting component 500.

[0053] The bottom of the support claw 510 is fixed on the top of the combined plate 511. The combined plate 511 is fixed on the top of the fourth slider 512. The fourth slider 512 is slidably connected to the fourth slide rail 513, and the fourth slide rail 513 is arranged at the other end of the connecting plate 402.

[0054] The support claw 510 is a hydraulic claw, which is used to limit the outer circumference of the plastic pipe. By adjusting the position and clamping force of the hydraulic claw, the welding requirements of different plastic pipes can be met.

[0055] The other end of the composite plate 511 fixes the support groove 520 through the connecting piece 501. One end of the support groove 520 supports on the composite plate 511, and a fixed fifth slide rail 521 is arranged at the bottom and slidably connected with a fifth slider 522. The bottom of the fifth slider 522 is fixed on the second heightening frame 523.

[0056] Further illustrate in combination with its usage mechanism:

[0057] During use, place the plastic pipe on the first limiting component 400 and the second limiting component 500. The limiting claws 410 are pushed outwards to be in contact with the inner wall of the plastic pipe to achieve circumferential limitation. The supporting claws 510 limit the outer circumference of the plastic pipe, and adjust the distance between the second limiting component 500 and the first limiting component 400 to keep the plastic pipe horizontal. Set the parameters of each module through the control unit 200 or manually adjust by the control component 131. The first slide rail 310 and the second slide rail 320 drive the welding head to move and adjust the position in the Y-axis and Z-axis directions. The third slide rail 420 drives the limiting claws 410 and the plastic pipe to move in the X-axis direction. The rotation driving device 411 drives the limiting claws 410 to rotate, thereby driving the plastic pipe to rotate axially. The welding head vertically moves downwards to weld the plastic pipe, and the operator observes the working condition of the welding head through the window 121.

[0058] During the use process, the control unit 200 is electrically connected to the driving motors built in the first slide rail 310 and the second slide rail 320, and controls the rotation speed, rotation direction and displacement of the driving motors, so as to achieve high-precision displacement of the welding head in the Y-axis and Z-axis directions;

[0059] The control unit 200 is electrically connected to the laser generating device of the welding head, and can adjust parameters such as the power, pulse frequency, and spot size of the laser according to the welding process requirements to ensure that the laser energy output matches the welding path;

[0060] The control unit 200 is electrically connected to the driving motor controller of the third slide rail 420, and controls the movement of the third slide rail 420 by sending control signals, thereby driving the limiting claws 410 and the plastic pipe to move horizontally in the X-axis direction;

[0061] The control unit 200 is also electrically connected to the rotation driving device 411, and can precisely control the rotation speed, rotation angle and start / stop of the rotation motor to meet the requirements of different welding processes for the rotation speed and angle of the plastic pipe;

[0062] When the limiting claws 410 limit the plastic pipe, the control unit 200 receives the pressure signal fed back by the built-in sensor of the limiting claws 410, and real-time monitors the contact pressure between the limiting claws 410 and the inner wall of the plastic pipe, ensuring the limiting effect while avoiding damage to the plastic pipe;

[0063] The control unit 200 is electrically connected to the hydraulic control system of the support jaws 510, and can adjust the clamping force and position of the hydraulic jaws to meet the welding requirements of plastic pipes of different specifications.

[0064] The control unit 200 is connected to the drive motor controllers of the fourth slide rail 513 and the fifth slide rail 521 to adjust the position of the second limiting component 500, ensuring that the plastic pipe maintains a stable horizontal state and coaxiality during the welding process.

[0065] The control unit 200 receives the status information fed back by each component, such as the current position of the slide rail, the operating state of the motor, the detection data of the sensor, etc., and displays this information on the screen to facilitate the operator to grasp the operating conditions of the device in real time. At the same time, the data such as the welding parameters and control instructions input by the operator through the control unit 200 can also be quickly and accurately transmitted to each component to ensure that the device operates according to the preset program. In addition, the control unit 200 also has the functions of data storage and analysis, and can record the key data during the welding process, which is convenient for subsequent traceability of the welding quality and process optimization.

[0066] In summary, the welding device provided by this application realizes the precise relative movement of the welding head and the plastic pipe in multiple directions by setting the welding component that can displace in the Y-axis and Z-axis directions and the first limiting component that can drive the plastic pipe to displace in the X-axis direction and rotate axially, and can accurately adjust the welding position and angle according to different welding requirements, greatly improving the welding accuracy and quality.

[0067] The control unit provided by this application facilitates the programming control of the drive structures of each module, and the operation is more convenient and efficient.

[0068] The second limiting component provided by this application can stably support and limit the plastic pipe, preventing it from shaking during the welding process, and further improving the stability and reliability of the welding; this device can meet the welding requirements of plastic pipes of different lengths and specifications, and has strong versatility and practicability.

[0069] The above embodiments are only used to illustrate the technical concept and characteristics of this solution, and the purpose is to enable those who are familiar with this technology to understand the content of this solution and implement it accordingly, and cannot be used to limit the protection scope of this solution. Any equivalent transformation or modification made according to the spirit and essence of this solution should be covered within the protection scope of this solution.

[0070] In the description of this solution, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components.

[0071] For those of ordinary skill in the art, the specific meanings of the above terms in this solution can be understood according to specific circumstances.

[0072] It should be understood that the above embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this solution, various obvious or equivalent modifications or substitutions that those skilled in the art can make to the above details will all be included within the protection scope of this solution.

Claims

1. A plastic pipe welding device, characterized in that: The device body (100) is divided into two layers, the upper layer welding end comprises a welding assembly (300) that can be displaced in the Y-axis and Z-axis directions, and the first limit assembly (400) at the lower layer displacement end drives the plastic tube to displace in the X-axis direction and perform axial rotation; The welding assembly (300) and the first limiting assembly (400) are electrically connected to the control unit (200).

2. The plastic pipe welding device according to claim 1, characterized in that: The device body (100) comprises a bracket (110) and a baffle (120); The cavity of the upper layer of the bracket (110) is connected to a welding assembly (300), and the baffle (120) on the outer side of the upper layer is connected to a control unit (200) and has a window (121).

3. The plastic pipe welding device according to claim 2, characterized in that: The welding assembly (300) has a first fixing member (301) fixed to the upper layer of the bracket (110) and connected to a first slide rail (310) and a second slide rail (320) which are vertically arranged to each other, and the second slide rail (320) is slidably connected to the welding head.

4. The plastic pipe welding device according to claim 3, characterized in that: The welding head is vertically downward and aligned with the plastic tube which is limited below on the first limiting component (400).

5. The plastic pipe welding device according to claim 4, characterized in that: The driving end of the first limiting component (400) and the rotation driving device (411) is connected to the limiting claw (410), and the claw part of the limiting claw (410) opens the inner wall of the limiting plastic tube and drives the plastic tube to rotate axially.

6. The plastic pipe welding device according to claim 5, characterized in that: The bottom of the limiting claw (410) is slidably connected to the third slide rail (420), and the third slide rail (420) is fixed in the housing (130); The housing (130) is integrated with a control component (131) and has a clearance hole (132) on the top.

7. The plastic pipe welding device according to claim 6, characterized in that: The third slide rail (420) is slidably connected to the third slider (421), and the third slider (421) drives the limiting claw (410) on the top of the connecting plate (402) to slide.

8. The plastic pipe welding device according to claim 7, characterized in that: The other end of the connecting plate (402) further includes a second limiting assembly (500), and the second limiting assembly (500) includes a slidable supporting clamp (510) and a supporting groove (520).

9. The plastic pipe welding device according to claim 8, characterized in that: The bottom of the supporting clamp (510) is fixed to the top of the combined plate (511), the combined plate (511) is fixed to the top of the fourth sliding block (512) and is slidably connected to the fourth sliding rail (513), and the fourth sliding rail (513) is arranged on the connecting plate (402).

10. The plastic pipe welding device according to claim 9, characterized in that: The other end of the combined plate (511) is fixed to the support groove (520) through a connecting piece (501); a fifth slide rail (521) is provided at the bottom of the support groove (520) and is slidably connected to a fifth slider (522); a second heightening frame (523) is fixed to the bottom of the fifth slider (522).

Images