An automatic socket welder

Abstract

The utility model belongs to welding technical field discloses a kind of automatic socket welding machine, it includes control cabinet, first clamping assembly, second clamping assembly and heating assembly. Among them, first drive screw and second drive screw are provided on control cabinet, first drive screw is used to drive first clamping assembly to move, and second drive screw is used to drive second clamping assembly to move. Support platform is further provided on control cabinet, third drive screw is provided on support platform, and third drive screw is used to drive heating assembly to move. Heating assembly includes heating plate, male die and female die, male die and female die are respectively arranged at the both sides of heating plate, and independent heating source is respectively arranged in male die and female die. Servo control system is provided in control cabinet, and first drive screw, second drive screw and third drive screw are all driven by servo control system. The motion control precision and temperature control precision of the automatic socket welding machine are higher, and the demand of low socket interference amount design to high precision can be satisfied.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to an automatic socket welding machine. Background Technology

[0002] A socket welding machine is a specialized piece of equipment for hot-melt socket welding of plastic pipes and fittings (such as Clean-PVC, PFA, PVDF, etc.). It melts the outer surface of the pipe and the inner surface of the fitting by heating, then inserts the pipe into the fitting and applies a certain pressure. After cooling, a tightly bonded whole is formed.

[0003] Traditional socket welding machines typically employ manual or semi-automatic hydraulic control, requiring manual intervention in steps such as clamping, calibration, and welding. The actual socketing effect often depends on the operator's experience and judgment, resulting in low motion control accuracy (errors exceeding ±1mm) and affecting welding quality. Secondly, traditional socket welding machines use a single heat source to heat the die head. However, due to the different heat absorption capacities of the punches and dies of different sizes on the die head, the actual temperature fluctuation of the entire die head can reach ±10℃. Therefore, traditional socket welding machines cannot meet the high-precision requirements of low socket interference designs. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic socket welding machine with high motion control accuracy and temperature control accuracy, which can meet the high precision requirements of low socket interference design.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An automatic socket welding machine, comprising:

[0007] A control cabinet, wherein a first transmission screw and a second transmission screw are provided on the control cabinet, the first transmission screw and the second transmission screw are spaced apart along the same axis, a first screw nut is provided on the first transmission screw, and a second screw nut is provided on the second transmission screw.

[0008] A first clamping assembly is mounted on the first lead screw nut and is used to clamp a first workpiece to be welded.

[0009] The second clamping assembly is mounted on the second lead screw nut and is used to clamp the second workpiece to be welded.

[0010] The heating assembly includes a support platform on the control cabinet, a third transmission screw perpendicular to the first transmission screw, and a third screw nut mounted on the third transmission screw. The heating assembly is movable between the first clamping assembly and the second clamping assembly. The heating assembly includes a heating plate, a punch, and a die. The punch and the die are respectively located on opposite sides of the heating plate, and each has an independent heating source. The punch is used to heat the second workpiece to be welded, and the die is used to heat the first workpiece to be welded.

[0011] The control cabinet is equipped with a servo control system, and the first, second, and third transmission screws are all driven by the servo control system.

[0012] Optionally, the control cabinet is further provided with a first parallel guide rail, at least two first sliders are provided at one end of the first parallel guide rail near the first transmission screw, the first clamping assembly is fixedly connected to the first sliders, and at least two second sliders are provided at one end of the first parallel guide rail near the second transmission screw, the second clamping assembly is fixedly connected to the second sliders.

[0013] Optionally, a second parallel guide rail is also provided on the support platform, and at least two third sliders are provided on the second parallel guide rail, with the heating component fixedly connected to the third sliders.

[0014] Optionally, the first clamping assembly includes a first clamping plate, a second clamping plate, and a first driving structure, wherein the first driving structure can drive the first clamping plate and the second clamping plate to clamp or release the first workpiece to be welded.

[0015] The second clamping assembly includes a third clamping plate, a fourth clamping plate, and a second driving structure. The second driving structure can drive the third clamping plate and the fourth clamping plate to clamp or release the second workpiece to be welded.

[0016] Optionally, the first driving structure is a first bidirectional trapezoidal lead screw, and the second driving structure is a second bidirectional trapezoidal lead screw.

[0017] Optionally, a handwheel is provided at the end of both the first bidirectional trapezoidal lead screw and the second bidirectional trapezoidal lead screw away from the heating assembly.

[0018] Optionally, the first and second transmission screws are provided with screw protective sleeves.

[0019] Optionally, the heating component is provided with a protective cover, and the protective cover has multiple heat dissipation holes.

[0020] Optionally, the control cabinet is also equipped with a control panel, which is communicatively connected to the servo control system.

[0021] Optionally, the control cabinet includes an outer casing, which is a structural component made of stainless steel.

[0022] The beneficial effects of this utility model are:

[0023] The automatic socket welding machine provided by this utility model improves the motion control accuracy of the automatic socket welding machine by using a servo control system to drive the first, second, and third transmission screws to rotate, thereby controlling the movement of the first clamping assembly, the second clamping assembly, and the heating assembly. By providing independent heating sources in the punch and die of the heating assembly, the temperature of the punch and die can be controlled separately, adapting to temperature deviations caused by different dimensions of the punch and die, thus meeting the high-precision requirements of low socket interference designs. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the automatic socket welding machine provided in this embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the control cabinet provided in an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the first clamping component and the second clamping component provided in this embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the heating assembly provided in an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Control cabinet; 11. Housing; 12. First transmission screw; 121. First screw nut; 13. Second transmission screw; 131. Second screw nut; 14. First parallel guide rail; 141. First slider; 142. Second slider; 15. Support platform; 151. Third transmission screw; 1511. Third screw nut; 152. Second parallel guide rail; 1521. Third slider; 16. Control panel;

[0030] 2. First clamping assembly; 21. First clamping plate; 22. Second clamping plate; 23. First bidirectional trapezoidal lead screw; 24. First mounting plate; 241. Third parallel guide rail; 25. Second mounting plate;

[0031] 3. Second clamping assembly; 31. Third clamping plate; 32. Fourth clamping plate; 33. Second bidirectional trapezoidal lead screw; 34. Third mounting plate; 341. Fourth parallel guide rail; 35. Fourth mounting plate;

[0032] 4. Heating assembly; 41. Heating plate; 42. Punch; 43. Die; 44. Junction box; 45. Fifth mounting plate;

[0033] 5. Handwheel; 6. Lead screw protective sleeve; 7. Protective cover; 71. Heat dissipation holes; 8. Calibration parts; 9. Base;

[0034] 100, First component to be welded; 200, Second component to be welded. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] like Figures 1 to 4 As shown, this embodiment provides an automatic socket welding machine, which includes a control cabinet 1, a first clamping assembly 2, a second clamping assembly 3, and a heating assembly 4. The control cabinet 1 is equipped with a first transmission screw 12 and a second transmission screw 13, which are spaced apart along the same axis. A first screw nut 121 is provided on the first transmission screw 12, and a second screw nut 131 is provided on the second transmission screw 13. The first clamping assembly 2 is mounted on the first screw nut 121 and is used to clamp a first workpiece 100 to be welded. The second clamping assembly 3 is mounted on the second screw nut 131 and is used to clamp a second workpiece 200 to be welded. The control cabinet 1 is also equipped with a support platform 15, on which a third transmission screw 151 is mounted. The third transmission screw 151 is perpendicular to the first transmission screw 12, and a third screw nut 1511 is mounted on the third transmission screw 151. The heating component 4 is mounted on the third screw nut 1511 and can move between the first clamping component 2 and the second clamping component 3. The heating component 4 includes a heating plate 41, a punch 42, and a die 43. The punch 42 and the die 43 are respectively located on both sides of the heating plate 41, and each of the punch 42 and the die 43 has an independent heating source. The punch 42 is used to heat the second workpiece 200 to be welded, and the die 43 is used to heat the first workpiece 100 to be welded. The control cabinet 1 is equipped with a servo control system (not shown in the figure), and the first transmission screw 12, the second transmission screw 13, and the third transmission screw 151 are all driven by the servo control system.

[0040] The automatic socket welding machine provided in this embodiment has two main advantages. First, by employing a servo control system to drive the first transmission screw 12, the second transmission screw 13, and the third transmission screw 151 to rotate, it controls the movement of the first clamping assembly 2, the second clamping assembly 3, and the heating assembly 4. This achieves a reciprocating motion accuracy of ≤±0.05mm, a maximum speed of ≥400mm / s, and a switching speed of ≤2s, thus improving the motion control accuracy of the automatic socket welding machine. Second, by providing independent heating sources in the punch 42 and the die 43 respectively, the temperature of the punch 42 and the die 43 can be controlled separately. The temperature control accuracy can reach ±5℃, adapting to temperature deviations caused by different dimensions of the punch 42 and the die 43, thereby meeting the high precision requirements of low socket interference design.

[0041] It should be noted that the servo control system is existing technology, and its specific structure and working principle will not be described in detail here.

[0042] Furthermore, in this embodiment, the independent heating sources provided in the punch 42 and the die 43 are both high-efficiency heating elements, supporting rapid switching of temperature modes to meet the welding requirements of various pipe fittings. Optionally, the high-efficiency heating elements can be nickel-chromium alloy heating wire, iron-chromium-aluminum alloy heating wire, etc. It is understood that in some other embodiments, other types of high-efficiency heating elements can be used according to actual needs, and no limitation is made here.

[0043] like Figure 1 and Figure 2 As shown, the control cabinet 1 is roughly a cuboid structure. The control cabinet 1 includes an outer shell 11. The servo control system is located inside the outer shell 11. The first transmission screw 12, the second transmission screw 13 and the support platform 15 are all located on the outer top surface of the outer shell 11.

[0044] Optionally, in this embodiment, the outer casing 11 is a structural component made of stainless steel. Stainless steel has strong corrosion resistance, is not prone to dirt adhesion, and is easy to clean, which not only meets the cleanliness standards in the socket welding process but also avoids the risk of contamination. It is understood that in some other embodiments, the outer casing 11 may also be made of other materials according to actual needs, and there are no restrictions here.

[0045] Optionally, such as Figure 2As shown, in this embodiment, the first transmission screw 12 and the second transmission screw 13 are spaced apart along the length of the control cabinet 1, and the support platform 15 is arranged along the width of the control cabinet 1. The support platform 15, the first transmission screw 12, and the second transmission screw 13 are arranged in a T-shape on the control cabinet 1, and a welding space is formed between the close ends of the support platform 15, the first transmission screw 12, and the second transmission screw 13. The third transmission screw 151 is arranged on the support platform 15, and the third transmission screw 151 is also arranged along the width of the control cabinet 1, thus the third transmission screw 151 is perpendicular to the first transmission screw 12 and the second transmission screw 13. It is understood that in some other embodiments, the arrangement of the first transmission screw 12, the second transmission screw 13, and the support platform 15 on the control cabinet 1 can also be adjusted according to actual needs, as long as the socket welding operation can be achieved, and no limitation is made here.

[0046] like Figure 1 and Figure 2 As shown, a first lead screw nut 121 is provided on the first transmission lead screw 12, and a first clamping assembly 2 is installed on the first lead screw nut 121. When the first transmission lead screw 12 rotates, the first lead screw nut 121 moves linearly along the first transmission lead screw 12, and simultaneously drives the first clamping assembly 2 to move linearly. A second lead screw nut 131 is provided on the second transmission lead screw 13, and a second clamping assembly 3 is installed on the second lead screw nut 131. When the second transmission lead screw 13 rotates, the second lead screw nut 131 moves linearly along the second transmission lead screw 13, and simultaneously drives the second clamping assembly 3 to move linearly. A third lead screw nut 1511 is provided on the third transmission lead screw 151, and a heating assembly 4 is installed on the third lead screw nut 1511. When the third transmission lead screw 151 rotates, the third lead screw nut 1511 moves linearly along the third transmission lead screw 151, and simultaneously drives the heating assembly 4 to move linearly. This configuration enables the first clamping component 2 and the second clamping component 3 to clamp the first workpiece 100 and the second workpiece 200 to be welded, allowing them to move closer to or further apart within the welding space, while the heating component 4 can move to or out of the welding space.

[0047] like Figure 2As shown, the control cabinet 1 is also equipped with a first parallel guide rail 14. At least two first sliders 141 are provided at the end of the first parallel guide rail 14 near the first transmission screw 12, and the first clamping assembly 2 is fixedly connected to the first sliders 141. At least two second sliders 142 are provided at the end of the first parallel guide rail 14 near the second transmission screw 13, and the second clamping assembly 3 is fixedly connected to the second sliders 142. Specifically, the first parallel guide rail 14 is arranged along the length of the control cabinet 1, and both the first transmission screw 12 and the second transmission screw 13 are located between the two guide rails of the first parallel guide rail 14 and are parallel to the first parallel guide rail 14. By setting the first parallel guide rail 14, the movement of the first clamping assembly 2 and the second clamping assembly 3 is made more stable, further improving the motion control accuracy of the automatic socket welding machine.

[0048] Optionally, such as Figure 2 As shown, in this embodiment, four first sliders 141 are provided at one end of the first parallel guide rail 14 near the first transmission screw 12, and two first sliders 141 are provided on each of the two guide rails of the first parallel guide rail 14. By fixing both ends of the first clamping assembly 2 to the two first sliders 141 respectively, the motion stability of the first clamping assembly 2 can be further improved. Four second sliders 142 are provided at one end of the first parallel guide rail 14 near the second transmission screw 13, and two second sliders 142 are provided on each of the two guide rails of the first parallel guide rail 14. By fixing both ends of the second clamping assembly 3 to the two second sliders 142 respectively, the motion stability of the second clamping assembly 3 can be further improved. It is understood that in some other embodiments, the number of first sliders 141 and second sliders 142 can be set to other quantities according to actual needs, and there is no limitation here.

[0049] like Figure 2 As shown, a second parallel guide rail 152 is also provided on the support platform 15, and at least two third sliders 1521 are provided on the second parallel guide rail 152. The heating component 4 is fixedly connected to the third sliders 1521. Specifically, the second parallel guide rail 152 is arranged along the width direction of the control cabinet 1, and the third transmission screw 151 is arranged between the two guide rails of the second parallel guide rail 152 and is parallel to the second parallel guide rail 152. By setting the second parallel guide rail 152, the movement of the heating component 4 is made more stable, further improving the motion control accuracy of the automatic socket welding machine.

[0050] Optionally, such as Figure 2As shown, in this embodiment, four third sliders 1521 are provided on the second parallel guide rail 152, and two third sliders 1521 are provided on each of the two guide rails of the second parallel guide rail 152. By fixing the two ends of the heating component 4 to two third sliders 1521 respectively, the movement stability of the heating component 4 can be further improved. It is understood that in some other embodiments, the number of third sliders 1521 can be set to other quantities according to actual needs, and there is no limitation here.

[0051] like Figure 2 As shown, the control cabinet 1 is also equipped with a control panel 16, which is connected to the servo control system. Thus, the operator can control the automatic socket welding machine to work by operating the control panel 16, thereby improving the automation level of the automatic socket welding machine.

[0052] Furthermore, such as Figure 2 As shown, in this embodiment, the connection between the top surface of the outer shell 11 and the side away from the heating component 4 is set as an inclined surface, and the control panel 16 is set on this inclined surface. When the operator operates the control panel 16, he / she only needs to look down to see the contents of the control panel 16, which makes it easier for the operator to operate.

[0053] like Figure 1 and Figure 3 As shown, the first clamping assembly 2 includes a first clamping plate 21, a second clamping plate 22 and a first driving structure. The first driving structure can drive the first clamping plate 21 and the second clamping plate 22 to clamp or release the first workpiece 100 to be welded.

[0054] Optionally, in this embodiment, the first driving structure is a first bidirectional trapezoidal lead screw 23. Specifically, the first bidirectional trapezoidal lead screw 23 has a fourth lead screw nut (not shown in the figure) and a fifth lead screw nut (not shown in the figure) respectively provided on the threaded areas of different directions of rotation. One of the first clamping plate 21 and the second clamping plate 22 is provided on the fourth lead screw nut, and the other is provided on the fifth lead screw nut. Therefore, when the first bidirectional trapezoidal lead screw 23 rotates, the fourth lead screw nut and the fifth lead screw nut can move in a direction closer to or further away from each other, thereby driving the first clamping plate 21 and the second clamping plate 22 to move in a direction closer to or further away from each other, thereby realizing the clamping or releasing of the first workpiece 100 to be welded. It is understood that in some other embodiments, other types of first driving structures can also be used, such as a gear and rack structure, which is not limited here.

[0055] Furthermore, such as Figure 3As shown, a handwheel 5 is provided at the end of the first bidirectional trapezoidal screw 23 away from the heating component 4, so that the operator can drive the first bidirectional trapezoidal screw 23 to rotate by rotating the handwheel 5, thereby clamping or releasing the first workpiece 100 to be welded. The operation is simple and facilitates the operator to quickly disassemble and assemble the first workpiece 100 to be welded.

[0056] like Figure 3 As shown, the first clamping assembly 2 also includes a first mounting plate 24. A first bidirectional trapezoidal lead screw 23 is mounted on the upper end of the first mounting plate 24. The lower end of the first mounting plate 24 is fixedly connected to both the first lead screw nut 121 on the first transmission lead screw 12 and the first slider 141 on the first parallel guide rail 14. By setting the first mounting plate 24, the installation of the first clamping assembly 2 is facilitated.

[0057] like Figure 3 As shown, a third parallel guide rail 241 is also provided on the first mounting plate 24. Two fourth sliders (not shown in the figure) are provided at the end of the third parallel guide rail 241 near the first clamping plate 21, and the first clamping plate 21 is fixedly connected to the two fourth sliders. Two fifth sliders (not shown in the figure) are provided at the end of the third parallel guide rail 241 near the second clamping plate 22, and the second clamping plate 22 is fixedly connected to the two fifth sliders. Specifically, a first bidirectional trapezoidal lead screw 23 is disposed between the two guide rails of the third parallel guide rail 241 and is parallel to the third parallel guide rail 241. By setting the third parallel guide rail 241, the movement of the first clamping plate 21 and the second clamping plate 22 is made more stable, thereby improving the clamping accuracy.

[0058] like Figure 3 As shown, the first clamping assembly 2 also includes a second mounting plate 25 and a sixth mounting plate (not shown in the figure). The first clamping plate 21 is fixed to the upper end of the sixth mounting plate, and the lower end of the sixth mounting plate is fixedly connected to both the fourth lead screw nut on the first bidirectional trapezoidal lead screw 23 and the fourth slider on the third parallel guide rail 241. The second clamping plate 22 is fixed to the upper end of the second mounting plate 25, and the lower end of the second mounting plate 25 is fixedly connected to both the fifth lead screw nut on the first bidirectional trapezoidal lead screw 23 and the fifth slider on the third parallel guide rail 241. By providing the second mounting plate 25 and the sixth mounting plate, the installation of the first clamping plate 21 and the second clamping plate 22 is facilitated.

[0059] Furthermore, both the second mounting plate 25 and the sixth mounting plate are provided with multiple mounting holes, which facilitates the quick replacement of clamps with suitable straight pipes, elbows, tees and other pipe fittings by the operators, thereby improving welding efficiency.

[0060] like Figure 1 and Figure 3As shown, the second clamping assembly 3 includes a third clamping plate 31, a fourth clamping plate 32, and a second driving structure. The second driving structure can drive the third clamping plate 31 and the fourth clamping plate 32 to clamp or release the second workpiece 200 to be welded.

[0061] Optionally, in this embodiment, the second driving structure is a second bidirectional trapezoidal lead screw 33. Specifically, the second bidirectional trapezoidal lead screw 33 has a sixth lead screw nut (not shown in the figure) and a seventh lead screw nut (not shown in the figure) respectively provided on the threaded areas of different directions of rotation. One of the third clamping plate 31 and the fourth clamping plate 32 is provided on the sixth lead screw nut, and the other is provided on the seventh lead screw nut. Therefore, when the second bidirectional trapezoidal lead screw 33 rotates, the sixth lead screw nut and the seventh lead screw nut can move in a direction closer to or further away from each other, thereby driving the third clamping plate 31 and the fourth clamping plate 32 to move in a direction closer to or further away from each other, thereby realizing the clamping or releasing of the second workpiece 200 to be welded. It is understood that in some other embodiments, other types of second driving structures can also be used, such as a gear and rack structure, which is not limited here.

[0062] Furthermore, such as Figure 3 As shown, the second bidirectional trapezoidal lead screw 33 is also equipped with a handwheel 5 at the end away from the heating component 4. The operator can drive the second bidirectional trapezoidal lead screw 33 to rotate by turning the handwheel 5, thereby clamping or releasing the second workpiece 200 to be welded. The operation is simple and facilitates the operator to quickly disassemble and assemble the second workpiece 200 to be welded.

[0063] like Figure 3 As shown, the second clamping assembly 3 also includes a third mounting plate 34. The second bidirectional trapezoidal lead screw 33 is mounted on its upper end. The lower end of the third mounting plate 34 is fixedly connected to both the second lead screw nut 131 on the second transmission lead screw 13 and the second slider 142 on the first parallel guide rail 14. By providing the third mounting plate 34, the installation of the second clamping assembly 3 is facilitated.

[0064] like Figure 3 As shown, a fourth parallel guide rail 341 is also provided on the third mounting plate 34. Two sixth sliders (not shown in the figure) are provided at the end of the fourth parallel guide rail 341 near the third clamping plate 31. The third clamping plate 31 is fixedly connected to the two sixth sliders. Two seventh sliders (not shown in the figure) are provided at the end of the fourth parallel guide rail 341 near the fourth clamping plate 32. The fourth clamping plate 32 is fixedly connected to the two seventh sliders. Specifically, a second bidirectional trapezoidal lead screw 33 is disposed between the two guide rails of the fourth parallel guide rail 341 and is parallel to the fourth parallel guide rail 341. By setting the fourth parallel guide rail 341, the movement of the third clamping plate 31 and the fourth clamping plate 32 becomes more stable, thereby improving the clamping accuracy.

[0065] like Figure 3 As shown, the second clamping assembly 3 also includes a fourth mounting plate 35 and a seventh mounting plate (not shown in the figure). The third clamping plate 31 is fixed to the upper end of the seventh mounting plate, and the lower end of the seventh mounting plate is fixedly connected to both the sixth lead screw nut on the second bidirectional trapezoidal lead screw 33 and the sixth slider on the fourth parallel guide rail 341. The fourth clamping plate 32 is fixed to the upper end of the fourth mounting plate 35, and the lower end of the fourth mounting plate 35 is fixedly connected to both the seventh lead screw nut on the second bidirectional trapezoidal lead screw 33 and the seventh slider on the fourth parallel guide rail 341. By providing the fourth mounting plate 35 and the seventh mounting plate, the installation of the third clamping plate 31 and the fourth clamping plate 32 becomes easier.

[0066] Furthermore, both the fourth mounting plate 35 and the seventh mounting plate have multiple mounting holes, which facilitates the quick replacement of clamps with suitable straight pipes, elbows, tees and other pipe fittings by the operators, thereby improving welding efficiency.

[0067] like Figure 1 and Figure 4 As shown, the heating assembly 4 also includes a junction box 44 and a fifth mounting plate 45. The heating plate 41 is positioned on the end of the junction box 44 near the welding space. The junction box 44 is mounted on the upper end of the fifth mounting plate 45. The lower end of the fifth mounting plate 45 is fixedly connected to both the third lead screw nut 1511 on the third transmission lead screw 151 and the third slider 1521 on the second parallel guide rail 152. The fifth mounting plate 45 facilitates the installation of the heating assembly 4.

[0068] Furthermore, such as Figure 1 As shown, the heating component 4 is equipped with a protective cover 7, which has multiple heat dissipation holes 71. The protective cover 7 serves two purposes: firstly, it prevents operators from accidentally touching the heating component 4; secondly, it protects the heating component 4 from damage by external objects. Furthermore, the heat dissipation holes 71 on the protective cover 7 ensure rapid heat dissipation after heating is complete.

[0069] like Figure 1 and Figure 3As shown, the first transmission screw 12 and the second transmission screw 13 are externally protected by screw protective sleeves 6. Specifically, in this embodiment, the screw protective sleeve 6 is a cuboid cover structure, which is installed on the control cabinet 1, and the first transmission screw 12 and the second transmission screw 13 are located inside the screw protective sleeve 6. It can be understood that the screw protective sleeve 6 has clearance structures at corresponding positions of the first transmission screw 12 and the second transmission screw 13 to ensure that the first screw nut 121 can be connected to the first clamping assembly 2, and the second screw nut 131 can be connected to the second clamping assembly 3. By setting the screw protective sleeve 6, external impurities can be prevented from falling onto the first transmission screw 12 and the second transmission screw 13, thereby maintaining the long-term stable transmission accuracy of the first transmission screw 12 and the second transmission screw 13.

[0070] Furthermore, both the lower ends of the first mounting plate 24 and the third mounting plate 34 are provided with clearance grooves for avoiding the lead screw protective sleeve 6, thereby making the structure more compact when the first mounting plate 24 is installed on the first lead screw nut 121 and the third mounting plate 34 is installed on the second lead screw nut 131.

[0071] like Figure 1 and Figure 3 As shown, the automatic socket welding machine also includes a calibration component 8. The calibration component 8 is used to calibrate the positions of the first clamping assembly 2, the second clamping assembly 3, and the heating assembly 4 before welding the first workpiece 100 and the second workpiece 200, thereby ensuring welding accuracy. Furthermore, the lead screw protective sleeve 6 is provided with a groove for placing the calibration component 8. Therefore, when calibration is required, the calibration component 8 can be directly inserted into the groove, which can improve calibration efficiency.

[0072] like Figure 1 As shown, the automatic socket welding machine also includes a base 9, on which the control cabinet 1 is mounted. The base 9 provides stable support for the control cabinet 1, ensuring the safe and stable operation of the servo control system inside the control cabinet 1. Simultaneously, the base 9 maintains a certain distance between the bottom of the control cabinet 1 and the ground, effectively preventing moisture, dust, and debris from entering the cabinet, reducing corrosion and damage to internal electrical components, and extending the equipment's service life. Optionally, in this embodiment, the base 9 is a structural component made of stainless steel.

[0073] The automatic socket welding machine provided in this embodiment has the following specific working process:

[0074] 1. The operator clamps the first workpiece 100 to be welded onto the first clamping assembly 2 and the second workpiece 200 to be welded onto the second clamping assembly 3. During the clamping process, the operator guides the first workpiece 100 and the second workpiece 200 to extend out of the relative position of the clamp. Then, the operator rotates the handwheel 5 on the first clamping assembly 2 and the second clamping assembly 3 to lock the first workpiece 100 and the second workpiece 200 to be welded.

[0075] 2. Place the calibration component 8 in the groove on the lead screw protective sleeve 6, then select the calibration operation on the control panel 16. The servo control system then works and automatically calibrates the positions of the first clamping component 2, the second clamping component 3 and the heating component 4 to ensure that the coaxiality error is ≤0.1mm.

[0076] 3. After calibration, remove the calibration piece 8. Based on the material type of the first part to be welded 100 and the second part to be welded 200, the operator selects the corresponding welding process (including time, temperature, position, etc.) on the control panel 16.

[0077] 4. After the process is selected, the servo control system operates. First, the heating component 4 advances to the preset position. The first clamping component 2 clamps the first workpiece to be welded 100 and inserts it into the concave mold 43 to the specified depth (depth error not exceeding 0.1mm) and holds it for 10-30 seconds. Simultaneously, the second clamping component 3 clamps the second workpiece to be welded 200 and inserts it into the convex mold 42 to the specified depth (depth error not exceeding 0.1mm) and holds it for 10-30 seconds. After heating is completed, the first clamping component 2 and the second clamping component 3 move and reset first, then the heating component 4 resets. Then, the first clamping component 2 and the second clamping component 3 are driven to move and close, so that the first workpiece to be welded 100 is inserted into the second workpiece to be welded 200 to the specified depth (depth error not exceeding 0.1mm) and held for 100-200 seconds. After the time is up, the welding is completed. The first clamping plate 21, the second clamping plate 22, the third clamping plate 31, and the fourth clamping plate 32 are released, the finished product is taken out, and then the first clamping component 2 and the second clamping component 3 move and reset.

[0078] 5. After welding is completed, wipe away the residual slag on the surface of the punch 42 and die 43, and clean and maintain the automatic socket welding machine.

[0079] The automatic socket welding machine provided in this embodiment has several advantages. First, it ensures welding consistency by employing servo control and dual-heat source temperature control technology, meeting the pressure requirements of socket pipes such as Clean-PVC, PFA, and PVDF. Second, various welding parameters (such as position, time, speed, and temperature) are adjustable and controllable with high precision, meeting the welding process requirements of various materials with different properties. Third, calibration and welding are automated processes, reducing overall operation time and increasing production capacity by more than 30%. Fourth, the stainless steel body and protective structure meet industry cleanliness standards, avoiding the risk of contamination.

[0080] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic socket welding machine, characterized in that, include: The control cabinet (1) is provided with a first transmission screw (12) and a second transmission screw (13). The first transmission screw (12) and the second transmission screw (13) are spaced apart along the same axis. The first transmission screw (12) is provided with a first screw nut (121), and the second transmission screw (13) is provided with a second screw nut (131). The first clamping assembly (2) is mounted on the first lead screw nut (121) and is used to clamp the first workpiece to be welded (100). The second clamping assembly (3) is mounted on the second lead screw nut (131) and is used to clamp the second workpiece to be welded (200). The heating assembly (4) is provided on the control cabinet (1), and a support platform (15) is provided on the support platform (15). A third transmission screw (151) is provided on the support platform (15), and the third transmission screw (151) is perpendicular to the first transmission screw (12). A third screw nut (1511) is provided on the third transmission screw (151). The heating assembly (4) is mounted on the third screw nut (1511). The heating assembly (4) can move to the first clamping assembly (2) and the control cabinet (12). Between the second clamping components (3), the heating component (4) includes a heating plate (41), a punch (42) and a die (43). The punch (42) and the die (43) are respectively disposed on both sides of the heating plate (41), and the punch (42) and the die (43) are respectively provided with independent heating sources. The punch (42) is used to heat the second workpiece to be welded (200), and the die (43) is used to heat the first workpiece to be welded (100). The control cabinet (1) is equipped with a servo control system, and the first transmission screw (12), the second transmission screw (13) and the third transmission screw (151) are all driven by the servo control system.

2. The automatic socket welding machine according to claim 1, characterized in that, The control cabinet (1) is also provided with a first parallel guide rail (14). At least two first sliders (141) are provided at one end of the first parallel guide rail (14) near the first transmission screw (12). The first clamping assembly (2) is fixedly connected to the first sliders (141). At least two second sliders (142) are provided at one end of the first parallel guide rail (14) near the second transmission screw (13). The second clamping assembly (3) is fixedly connected to the second sliders (142).

3. The automatic socket welding machine according to claim 1, characterized in that, The support platform (15) is also provided with a second parallel guide rail (152), and at least two third sliders (1521) are provided on the second parallel guide rail (152). The heating component (4) is fixedly connected to the third sliders (1521).

4. The automatic socket welding machine according to claim 1, characterized in that, The first clamping assembly (2) includes a first clamping plate (21), a second clamping plate (22) and a first driving structure. The first driving structure can drive the first clamping plate (21) and the second clamping plate (22) to clamp or release the first workpiece to be welded (100). The second clamping assembly (3) includes a third clamping plate (31), a fourth clamping plate (32), and a second driving structure. The second driving structure can drive the third clamping plate (31) and the fourth clamping plate (32) to clamp or release the second workpiece (200) to be welded.

5. The automatic socket welding machine according to claim 4, characterized in that, The first driving structure is a first bidirectional trapezoidal lead screw (23), and the second driving structure is a second bidirectional trapezoidal lead screw (33).

6. The automatic socket welding machine according to claim 5, characterized in that, Both the first bidirectional trapezoidal lead screw (23) and the second bidirectional trapezoidal lead screw (33) have a handwheel (5) at the end away from the heating component (4).

7. The automatic socket welding machine according to any one of claims 1-6, characterized in that, The first transmission screw (12) and the second transmission screw (13) are provided with screw protective sleeves (6).

8. The automatic socket welding machine according to any one of claims 1-6, characterized in that, The heating component (4) is provided with a protective cover (7) on the outside, and the protective cover (7) has multiple heat dissipation holes (71).

9. The automatic socket welding machine according to any one of claims 1-6, characterized in that, The control cabinet (1) is also equipped with a control panel (16), which is communicatively connected to the servo control system.

10. The automatic socket welding machine according to any one of claims 1-6, characterized in that, The control cabinet (1) includes an outer shell (11), which is a structural component made of stainless steel.

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