Electrofusion saddle-shaped pipe fitting processing and wiring integrated machine

Abstract

This invention discloses an integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings, including a mounting base. A cross slide assembly, a vertical lifting assembly, and a weight-reducing assembly are mounted on the mounting base. A cantilever milling assembly and a cantilever wiring device are mounted on the cross slide assembly. A support fixture is mounted on the vertical lifting assembly, and a plastic workpiece blank is mounted on the support fixture. The weight-reducing assembly is connected to the vertical lifting assembly and is used to reduce the vertical load-bearing capacity of the vertical lifting assembly. It also includes a control unit for controlling the linkage of the actuators. The control unit controls the vertical lifting assembly and the cross slide assembly to adjust the spatial position of the cantilever milling assembly and the cantilever wiring device relative to the plastic workpiece blank, realizing the milling and wiring operation of the plastic workpiece blank. This integrated machine can realize the integrated operation of milling and wiring of workpieces, achieving flexible wiring operation, suitable for workpieces of different sizes, with strong versatility, low lifting driving force, and high practicality.

Description

Technical Field

[0001] This invention relates to the field of electrofusion saddle-shaped pipe fitting manufacturing equipment, specifically to an integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings. Background Technology

[0002] Electrofusion saddle fittings are accessories used for connecting plastic piping systems. Their structure mainly consists of a plastic saddle fitting body and a metal resistance wire on an arc-shaped surface. The traditional manufacturing process for plastic electrofusion saddle fittings is as follows: First, a plastic saddle-shaped gasket with spiral grooves is pre-molded; second, the metal resistance wire is manually wound onto the pre-molded plastic saddle-shaped gasket; third, the wound plastic sheet is placed in a saddle fitting mold and undergoes a second injection molding process, so that the molded saddle-shaped plastic body encloses the sheet with the metal resistance wire, thus forming the electrofusion saddle fitting. The main drawbacks of this process are twofold. First, because the pre-fabricated thin-walled sheet with metal resistance wire is placed in a mold in a cooled state for secondary injection molding, an interface is left at the contact point between the heated and cooled plastic after the secondary injection molding. This interface poses a risk that the thin sheet with metal resistance wire may detach from the saddle-shaped body when the saddle-shaped fitting produced by this process is connected to the plastic pipe. Second, after injection molding, the arc on the saddle-shaped fitting body undergoes significant diameter deformation due to cooling and shrinkage, resulting in an uneven surface. When the saddle-shaped fitting produced by this process is connected to the plastic pipe, there is a gap between the saddle-shaped arc surface and the pipe surface, leading to unstable quality after electrofusion of the saddle-shaped fitting and the plastic pipe. The most common method currently is to directly wire the saddle-shaped body, such as the new type of saddle-shaped straight-through pipe wiring equipment disclosed in patent number ZL201721098425.6. Its processing steps are: first, a six-axis industrial robot drives a milling tool to mill the saddle-shaped surface of the saddle-shaped pipe; then, the robot drives a wiring tool to perform wiring, thus completing the process. However, using a six-axis industrial robot results in high equipment costs, leading to higher initial investment costs and increased operational risks for enterprises. The milling and wiring processes require the robot to use a quick-change device for tool changes, making it difficult to guarantee processing accuracy and preventing one-time completion, resulting in low processing efficiency. Patent number CN 201811126645.4 discloses an electrofusion saddle-shaped pipe arc surface wiring machine and processing method. This device uses a swinging saddle-shaped pipe for milling and wiring operations. When the saddle-shaped pipe is large in size and has a large central opening, it requires a large swinging space, increasing the size of the device and making it less adaptable to different sizes of saddle-shaped pipes. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings. This integrated machine can realize the integrated operation of milling and wiring the workpiece, achieve flexible wiring operation, is suitable for workpieces of different sizes, has strong versatility, low lifting driving force, and strong practicality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings includes a mounting base on which a cross slide assembly, a vertical lifting assembly, and a weight-reducing assembly are mounted. A cantilever milling assembly and a cantilever wiring device are mounted on the cross slide assembly. A support fixture is detachably mounted on the vertical lifting assembly, and a plastic workpiece blank is mounted on the support fixture. The weight-reducing assembly is connected to the vertical lifting assembly and is used to reduce the vertical load-bearing capacity of the vertical lifting assembly. The integrated machine also includes a control unit for controlling the linkage of the actuators. The control unit controls the vertical lifting assembly and the cross slide assembly to adjust the spatial position of the cantilever milling assembly and the cantilever wiring device relative to the plastic workpiece blank, thereby achieving milling and wiring operations on the plastic workpiece blank.

[0006] Preferably, the cantilevered wiring device includes a mounting bracket, a rotary drive motor, a cantilevered shaft tube, a slotted wiring assembly, a swing drive assembly, a wire storage assembly, and a wire feeding assembly. The cantilevered shaft tube is rotatably mounted on the mounting bracket, with one end fixedly connected to the output shaft of the rotary drive motor. The slotted wiring assembly is detachably mounted on the other end of the cantilevered shaft tube. The swing drive assembly is mounted on the cantilevered shaft tube and is poweredly connected to the slotted wiring assembly. The wire storage assembly is detachably mounted on the cross slide assembly. The wire feeding assembly is detachably mounted on the cantilevered shaft tube. The metal wire is wound on the wire storage assembly and connected to the slotted wiring assembly via the wire feeding assembly. The rotary drive motor and the swing drive assembly work together to control the slotting and wiring direction of the slotted wiring assembly.

[0007] Preferably, the slotted wiring assembly includes a connecting seat, a tool bar rotatably mounted on the connecting seat, and a slotting knife detachably mounted on one end of the tool bar via a pressure ring. One end of the pressure ring is provided with a compaction part, the bottom surface of which is higher than the bottom of the slotting knife. A wire-passing hole is coaxially arranged on the tool bar and the slotting knife. The metal wire passes through the wire-passing hole from one end of the tool bar and exits through the slotting knife. When the metal wire is buried in the slot opened by the slotting knife, the compaction part compacts the raised part of the slot and the metal wire. The slotting knife is composed of a front body and a rear body. The front body is provided with a cutting edge, and the bottom of the front body is lower than the bottom of the rear body.

[0008] Preferably, the swing drive assembly includes a swing drive motor, a first support base, a first drive pulley, a first driven pulley, a first transmission belt, and a reversing roller. The first support base is fixedly mounted on the cantilevered shaft tube near the mounting bracket. The swing drive motor is fixedly mounted on the first support base. The first drive pulley is fixedly mounted on the output shaft of the swing drive motor. The first driven pulley is mounted on the slotted wiring assembly. The first drive pulley and the first driven pulley are poweredly connected through the first transmission belt. The reversing roller can be rotatably mounted on both the slotted wiring assembly and the first support base. The reversing roller is used to arrange the first transmission belt on one side of the cantilevered shaft tube. A wire groove is formed on the cantilevered shaft tube. Multiple wire harness blocks are detachably mounted on the cantilevered shaft tube, and the multiple wire harness blocks hold the metal wires in the wire groove.

[0009] Preferably, the wire storage assembly includes a support handle, a damping shaft, and a wire storage groove wheel. One end of the support handle is detachably mounted on the cross slide assembly, and the other end of the support handle is mounted on the damping shaft. The wire storage groove wheel is mounted on the damping shaft, and the wire is wound around the wire storage groove wheel. When one end of the wire is pulled, the wire storage groove wheel rotates slowly under the damping action of the damping shaft, so that the wire is in a straight state. A sensor for detecting the number of rotations of the wire storage groove wheel is installed on the support handle.

[0010] Preferably, the wire feeding assembly includes a connecting plate, a support plate, a clamping mechanism, a traction drive mechanism, and a wire guide tube. The wire guide tube is located between the clamping mechanism and the traction drive mechanism. Multiple extrusion sections are provided on the wire guide tube. The metal wire passes through the wire guide tube and is partially exposed outside the extrusion sections. The traction drive mechanism allows the metal wire located at the extrusion sections to move in a specified direction. The clamping mechanism includes an adjusting seat rotatably mounted on the support plate at one end, a roller rotatably mounted on the adjusting seat, a fixed seat mounted on the support plate, and an adjusting top screw mounted on the fixed seat. One end of the adjusting top screw abuts against the swingable end of the adjusting seat. The traction drive mechanism includes a traction drive motor, a second drive pulley, a second driven pulley, a second transmission belt, and a traction drive shaft. The traction drive motor is fixedly mounted on the connecting plate, and the second drive pulley is fixedly mounted on... On the output shaft of the traction drive motor, the second driven pulley is rotatably mounted on the connecting plate or the support plate. The second driven pulley and the second drive pulley are connected by the second transmission belt. The traction drive shaft is fixedly mounted at one end of both the second drive pulley and the second driven pulley. One end of the traction drive shaft passes through the support plate and is located on one side of the support plate. The traction drive mechanism pulls the metal wire wound on the wire storage assembly to move in a specified direction to feed the wire for the slotted wiring assembly. A tensioning assembly is also installed on the connecting plate and the support plate. The tensioning assembly includes a first tensioning wheel rotatably mounted on the connecting plate and the support plate and located above the second transmission belt, and a second tensioning wheel movably mounted on the connecting plate and the support plate and located below the second transmission belt through an adjustment mechanism. Adjusting the distance between the second tensioning wheel and the first tensioning wheel adjusts the tension of the second transmission belt.

[0011] Preferably, the cantilever milling assembly includes a milling drive motor, a connecting bracket, a support sleeve, a drive shaft, and a milling cutter. The connecting bracket is detachably mounted on the cross slide assembly, the support sleeve is fixedly mounted on the connecting bracket, the milling drive motor is fixedly mounted on one end of the support sleeve, and the drive shaft is rotatably mounted inside the support sleeve. One end of the drive shaft is fixedly connected to the output shaft of the milling drive motor, and the other end of the drive shaft extends out of the support sleeve and is fixedly connected to the milling cutter.

[0012] Preferably, the vertical lifting assembly includes a Z-axis drive motor, a first pulley, a second pulley, a lead screw, a lead screw nut, and a Z-axis mounting platform. The Z-axis drive motor is fixedly mounted on the mounting base via a motor bracket. The output shaft of the Z-axis drive motor is fixedly connected to the first pulley. The second pulley is rotatably mounted on the side wall of the mounting base. The first pulley and the second pulley are connected by a second toothed belt. One end of the lead screw is fixedly connected to the second pulley, and the other end of the lead screw is rotatably mounted on the side wall of the mounting base. The lead screw nut is sleeved on the lead screw, and one end of the lead screw nut is fixedly mounted on the side wall of the Z-axis mounting platform. The Z-axis mounting platform is slidably mounted on the side wall of the mounting base.

[0013] Preferably, the weight reduction component includes a sprocket, a chain, and a counterweight. The sprocket is rotatably mounted on the mounting base via a second support. The chain meshes with the sprocket, with the counterweight attached to one end of the chain and the other end connected to the support clamp. The counterweight is composed of multiple counterweight plates stacked together, and the multiple counterweight plates are connected as a whole by bolts.

[0014] Preferably, the cross slide assembly includes an X-axis slide rail, an X-axis slider, an X-axis drive assembly, an X-axis mounting platform, a Y-axis slide rail, a Y-axis slider, a Y-axis drive assembly, and a Y-axis mounting platform; the X-axis slide rail is fixedly mounted on the mounting base, one end of the X-axis slider is fixedly mounted on the bottom of the X-axis mounting platform, and the other end of the X-axis slider is slidably mounted on the X-axis slide rail; the X-axis drive assembly is mounted on the mounting base and is used to drive the X-axis mounting platform to reciprocate along the X-axis slide rail; the Y-axis slide rail is fixedly mounted on the X-axis mounting platform, one end of the Y-axis slider is fixedly mounted on the bottom of the Y-axis mounting platform, and the other end of the Y-axis slider is slidably mounted on the Y-axis slide rail; the Y-axis drive assembly is mounted on the X-axis mounting platform and is used to drive the Y-axis mounting platform to reciprocate along the X-axis slide rail.

[0015] In this invention, the equipment uses a cross slide assembly to control the planar position of the cantilever milling assembly and the cantilever wiring device. Vertical position adjustment of the plastic workpiece blank achieves orthogonal three-coordinate position adjustment between the plastic workpiece blank and the milling cutter, enabling milling and wiring operations on the arc surface of the plastic workpiece blank. The structure is compact, and the overall machine size is small. The Z-axis mounting platform is slidably mounted on the support mounting base, ensuring that the Z-axis drive motor only bears force in the axial direction, avoiding damage to the Z-axis drive motor from forces in other directions of the support fixture.

[0016] The weight-reducing components lower the overall load on the Z-axis mounting platform, the supporting fixtures mounted on it, and the plastic workpiece blank. This reduces the driving force required for the vertical lifting components, increasing their operational safety and lowering the purchase cost of the Z-axis drive motor. During plastic workpiece blank machining and wiring operations, the reduced load facilitates position adjustment of the vertical lifting components, ensuring good adjustment stability and machining accuracy. The detachable supporting fixtures on the Z-axis mounting platform allow for replacement of fixtures with different sizes of plastic workpiece blanks, making it adaptable to machining and wiring operations of various sizes and highly versatile.

[0017] The cantilevered wiring device allows for simultaneous grooving and wire embedding within the grooves, while also compacting any raised areas to ensure the wire is tightly packed within the groove, resulting in good wiring stability and a high yield. The grooving wiring assembly embeds the wire within a plastic electrofusion saddle-shaped fitting, facilitating subsequent installation by heating the wire to melt and bond the fitting, thus improving connection quality. The oscillating drive assembly features a first transmission belt mounted on one side of the mounting bracket, resulting in a simple, compact structure with minimal space requirements. The oscillating drive motor is installed near the fixed installation end, reducing the weight of the cantilevered end of the shaft tube and minimizing instability caused by its own weight. The grooving cutter and the cutter shank are detachably connected, allowing for quick replacement of grooving cutters for metal wires of different diameters, making it highly versatile.

[0018] The wire feeding assembly guides the metal wire through a wire guide tube and pulls the wire via a drive shaft, providing tensioned wire to the slotted wiring assembly and ensuring the wire's compactness during wiring operations. The assembly can accommodate metal wires of different diameters by adjusting the gap between the clamping mechanism and the traction drive mechanism, offering strong versatility. The wire guide tube prevents lateral slippage of the metal during wire feeding and also prevents wire accumulation and tangling at the feeding device in case of malfunction.

[0019] The wire storage groove wheel is rotatably mounted on the support handle via a damping shaft. Under the action of the damping shaft, the wire storage groove wheel experiences resistance during rotation, ensuring that the metal wire wound on it remains taut during unwinding. A sensor detects the length of the remaining metal wire on the wire storage groove wheel, preventing disruptions to normal operations and overall wiring efficiency due to unnoticed absence of wire. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a partial structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the cantilever milling assembly structure of the present invention;

[0023] Figure 4 This is a schematic cross-sectional view of a partial structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the connector head structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the cantilevered wiring device of the present invention;

[0026] Figure 7 This is a schematic diagram of the slotted wiring assembly structure of the present invention;

[0027] Figure 8 This is a cross-sectional schematic diagram of the slotted wiring assembly structure of the present invention;

[0028] Figure 9 This is a partial structural diagram of the slotted wiring assembly of the present invention;

[0029] Figure 10 This is a partial structural diagram of the wire feeding assembly of the present invention;

[0030] Figure 11 This is a schematic cross-sectional view of the wire feeding assembly structure of the present invention;

[0031] In the diagram: 1. Mounting base; 2. Cross slide assembly; 3. Vertical lifting assembly; 4. Weight reduction assembly; 5. Cantilever milling assembly; 6. Cantilever wiring device; 7. Support fixture; 8. Plastic workpiece blank; 9. Control unit; 10. Connecting clip; 11. Metal wire; 20. X-axis slide rail; 21. X-axis slider; 22. X-axis drive assembly; 23. X-axis mounting platform; 24. Y-axis slide rail; 25. Y-axis slider; 26. Y-axis drive assembly; 27. Y-axis mounting platform; 30. Z-axis drive motor; 31. First pulley; 2. Second pulley; 33. Lead screw; 34. Lead screw nut; 35. Z-axis mounting platform; 36. Second toothed belt; 37. Z-axis slider; 38. Z-axis slide rail; 40. Sprocket; 41. Chain; 42. Counterweight; 43. Second support base; 50. Milling drive motor; 51. Connecting bracket; 52. Support sleeve; 53. Drive shaft; 54. Milling cutter; 60. Mounting bracket; 61. Rotary drive motor; 62. Cantilevered shaft tube; 63. Slotted wiring assembly; 64. Swing drive assembly; 65. Wire storage assembly; 66. Wire feeding assembly; 67. Wire groove; 68. Wire bundle block; 100. Single clamping head; 101. Clamping tooth; 630. Connecting seat; 631. Tool holder; 632. Pressure ring; 633. Grooving knife; 634. Compacting part; 635. Wire passage hole; 640. Oscillating drive motor; 641. First support seat; 642. First drive pulley; 643. First driven pulley; 644. First transmission belt; 645. Reversing roller; 650. Support handle; 651. Damping shaft; 652. Wire storage groove wheel; 653. Sensor; 660. Connecting plate; 661. Support Support plate; 662, clamping mechanism; 663, traction drive mechanism; 664, wire guide tube; 665, extrusion section; 666, tensioning assembly; 6330, cutter front body; 6331, cutter rear body; 6620, adjusting seat; 6621, roller; 6622, fixed seat; 6623, adjusting set screw; 6630, traction drive motor; 6631, second drive pulley; 6632, second driven pulley; 6633, second transmission belt; 6634, traction drive shaft; 6660, first tensioning pulley; 6661, second tensioning pulley. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] like Figures 1 to 11The diagram illustrates an integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings. It includes a mounting base 1, on which a cross slide assembly 2, a vertical lifting assembly 3, and a weight-reducing assembly 4 are mounted. A cantilever milling assembly 5 and a cantilever wiring device 6 are mounted on the cross slide assembly 2. A support fixture 7 is detachably mounted on the vertical lifting assembly 3, and a plastic workpiece blank 8 is detachably mounted on the support fixture 7. The weight-reducing assembly 4 is connected to the vertical lifting assembly 3 and is used to reduce the vertical load-bearing capacity of the vertical lifting assembly 3. The integrated machine also includes a control unit 9 for controlling the linkage of the actuators. The control unit 9 controls the vertical lifting assembly 3 and the cross slide assembly 2 to adjust the spatial position of the cantilever milling assembly 5 and the cantilever wiring device 6 relative to the plastic workpiece blank 8, thereby achieving milling and wiring operations on the plastic workpiece blank 8.

[0034] The cantilevered wiring device 6 includes a mounting bracket 60, a rotary drive motor 61, a cantilever shaft tube 62, a slotted wiring assembly 63, a swing drive assembly 64, a wire storage assembly 65, and a wire feeding assembly 66. The cantilever shaft tube 62 is rotatably mounted on the mounting bracket 60, with one end fixedly connected to the output shaft of the rotary drive motor 61. The slotted wiring assembly 63 is detachably mounted on the other end of the cantilever shaft tube 62. The swing drive assembly 64 is mounted on the cantilever shaft tube 62 and is poweredly connected to the slotted wiring assembly 63. The wire storage assembly 65 is detachably mounted on the cross slide assembly 2. The wire feeding assembly 66 is detachably mounted on the cantilever shaft tube 62. The metal wire 11 is wound around the wire storage assembly 65 and connected to the slotted wiring assembly 63 via the wire feeding assembly 66. The rotary drive motor 61 and the swing drive assembly 64 work together to control the slotting and wiring direction of the slotted wiring assembly 63.

[0035] The slotted wiring assembly 63 includes a connector 630, a cutter bar 631 rotatably mounted on the connector 630, and a slotting cutter 633 detachably mounted on one end of the cutter bar 631 via a pressure ring 632. A compaction part 634 is integrally provided at the bottom end of the pressure ring 632. The bottom surface of the compaction part 634 is higher than the bottom of the slotting cutter 633. A wire-passing hole 635 is coaxially arranged on the cutter bar 631 and the slotting cutter 633. The metal wire 11 passes through the wire-passing hole 635 from one end of the cutter bar 631 and exits through the bottom of the slotting cutter 633. After the metal wire 11 is embedded in the slot opened by the slotting cutter 633, the compaction part 634 compacts the raised portion of the slot and the metal wire 11. The grooving cutter 633 is composed of a cutting head 6330 and a cutting tail 6331. The cutting head 6330 has an integrally formed cutting edge, which is triangular or plow-shaped. The bottom of the cutting head 6330 is lower than the bottom of the cutting tail 6331. Semicircular grooves are provided on the joint surfaces of the cutting head 6330 and the cutting tail 6331, and the two semicircular grooves are joined to form a wire guide hole 635. Specifically, during operation, the metal wire 11 passing through the wire guide hole 635 is first fixed to the surface of the plastic workpiece blank 8, and then the wire routing operation is performed.

[0036] The oscillating drive assembly 64 includes an oscillating drive motor 640, a first support base 641, a first drive pulley 642, a first driven pulley 643, a first transmission belt 644, and a reversing roller 645. The first support base 641 is fixedly mounted on the cantilevered shaft tube 62 near the mounting bracket 60 by fasteners. The oscillating drive motor 640 is fixedly mounted on the first support base 641 by bolts. The first drive pulley 642 is fixedly mounted on the output shaft of the oscillating drive motor 640. The first driven pulley 643 is mounted on the outside of the tool holder 631. The first drive pulley 642 and the first driven pulley 643 are poweredly connected by the first transmission belt 644. When the oscillating drive motor 640 drives the first drive pulley 642 to rotate, the first driven pulley 643 rotates through the first transmission belt 644, thereby causing the tool holder 631 to rotate accordingly, realizing the adjustment of the cutting edge direction of the grooving tool 633 and ensuring that the cutting edge direction is consistent with the overall wiring operation direction of the machine.

[0037] A reversing roller 645 is rotatably mounted on both the slotted wiring assembly 63 and the first support base 641. Specifically, the reversing roller 645 is rotatably mounted on the connecting base 630 in the slotted wiring assembly 63. The reversing roller 645 is used to arrange the first transmission belt 644 on one side of the cantilevered shaft tube 62. The reversing roller 645 is located on the outside of the first transmission belt 644, and a reversing pulley is used to reverse the direction on the inside of the first transmission belt 644. Specifically, the first driving pulley 642 and the first driven pulley 643 are toothed pulleys, and the first transmission belt 644 is a toothed belt. A wire groove 67 is formed on the outer surface of the cantilevered shaft tube 62 along its length. The wire groove 67 is located on the side opposite to the slotting cutter 633. Multiple wire binding blocks 68 are detachably mounted on the cantilevered shaft tube 62 by bolts. The multiple wire binding blocks 68 hold the metal wire 11 in the wire groove 67, and the metal wire 11 can slide in the wire groove 67.

[0038] The wire storage assembly 65 includes a support handle 650, a damping shaft 651, and a wire storage groove wheel 652. The bottom end of the support handle 650 has an integrally formed connecting part with a mounting hole. A bolt is passed through this mounting hole to detachably mount the support handle 650 onto the Y-axis mounting platform 27. The other end of the support handle 650 is fitted with the damping shaft 651, and the wire storage groove wheel 652 is mounted on the damping shaft 651. The wire 11 is wound around the groove of the wire storage groove wheel 652. When one end of the wire 11 is pulled, the wire storage groove wheel 652 rotates slowly under the damping action of the damping shaft 651, keeping the wire 11 taut. A sensor 653 for detecting the number of rotations of the wire storage groove wheel 652 is fixedly installed on the support handle 650 by fasteners. This sensor 653 is electrically connected to the control unit 9. When the number of coils reaches a preset value, the electrofusion saddle-shaped pipe fitting processing and wiring integrated machine issues a warning to replace the wire storage groove wheel 652 or stops operation to ensure safe operation. Specifically, a through hole is opened in the wire storage groove wheel 652, and one end of the metal wire 11 passes through the through hole and is fixed on the wire storage groove wheel 652, which facilitates the fixation of the metal wire 11 on the wire storage groove wheel 652.

[0039] The wire feeding assembly 66 includes a connecting plate 660, a support plate 661, a pressing mechanism 662, a traction drive mechanism 663, and a wire feeding tube 664. The wire feeding tube 664 is located between the pressing mechanism 662 and the traction drive mechanism 663. Multiple extrusion sections 665 are provided on the wire feeding tube 664. The metal wire 11 passes through the wire feeding tube 664 and is partially exposed on the outside of the extrusion sections 665. The pressing mechanism 662 and the traction drive mechanism 663 extrude the metal wire 11 exposed on the outside of the extrusion sections 665. At the same time, under the traction force of the traction drive mechanism 663, the metal wire 11 can move in a specified direction.

[0040] The wire tube 664 includes multiple tube segments. Double arc-shaped tips are machined at both ends of the tube segments. The double arc-shaped tips of two adjacent tube segments are spliced ​​together to form an extrusion section 665. The metal wire 11 is exposed on the outside of the extrusion section 665.

[0041] The clamping mechanism 662 includes an adjusting seat 6620 rotatably mounted on a support plate 661 via a pin at one end, a roller 6621 rotatably mounted on the adjusting seat 6620, a fixed seat 6622 fixedly mounted on the support plate 661, and an adjusting screw 6623 mounted on the fixed seat 6622. One end of the adjusting screw 6623 abuts against the swingable end of the adjusting seat 6620. The gap between the roller 6621 and the traction drive shaft 6634 is adjusted by adjusting the position of the adjusting screw 6623 to accommodate metal wires 11 of different diameters. In one specific embodiment, one or more sets of clamping mechanisms 662 are provided. Specifically, the number of clamping mechanisms 662 is the same as the number of traction drive shafts 6634, that is, each traction drive shaft 6634 corresponds to one clamping mechanism 662. The metal wire 11 exposed outside the pressing part 665 is pressed and installed between the traction drive shaft 6634 and the roller 6621.

[0042] The traction drive mechanism 663 includes a traction drive motor 6630, a second drive pulley 6631, a second driven pulley 6632, a second transmission belt 6633, and a traction drive shaft 6634. The traction drive motor 6630 is fixedly mounted on the connecting plate 660 by fasteners. The second drive pulley 6631 is fixedly mounted on the output shaft of the traction drive motor 6630 by a key. The second driven pulley 6632 is rotatably mounted on the connecting plate 660 or the support plate 661 by a pin and is located between the connecting plate 660 and the support plate 661. The second driven pulley 6632 and the second drive pulley 6631 are poweredly connected by the second transmission belt 6633. Specifically, the second driven pulley 6632 and the second drive pulley 6631 are toothed pulleys, and the second transmission belt 6633 is a toothed belt. A traction drive shaft 6634 is coaxially fixedly mounted on one end of both the second driven pulley 6632 and the second drive pulley 6631. One end of the traction drive shaft 6634 passes through the support plate 661 and is located on one side of the support plate 661. Specifically, the traction drive shaft 6634 is rotatably connected to the support plate 661 through a bearing, reducing the cantilever length of the traction drive shaft 6634 and increasing the installation stability of the traction drive shaft 6634. In a preferred embodiment, two or three second driven pulleys 6632 are provided, and multiple second driven pulleys 6632 are all poweredly connected to the second drive pulley 6631 through a second transmission belt 6633. Multiple second driven pulleys 6632 can provide more extrusion and conveying points, improving the stability of the metal wire 11 conveying. The traction drive mechanism 663 pulls the metal wire 11 wound on the wire storage assembly 65 to move in a specified direction, performing wire feeding operations for the slotted wiring assembly 63.

[0043] Tensioning assembly 666 is also installed on connecting plate 660 and support plate 661. The tensioning assembly includes a first tensioning wheel rotatably mounted on the connecting plate and support plate and located above the second transmission belt, and a second tensioning wheel movably mounted on the connecting plate and support plate and located below the second transmission belt via an adjustment mechanism. Adjusting the distance between the second tensioning wheel and the first tensioning wheel achieves the adjustment of the tension of the second transmission belt.

[0044] The tensioning assembly 666 includes a first tensioning pulley 6660 rotatably mounted on the connecting plate 660 and the support plate 661, located above the second transmission belt 6633, and a second tensioning pulley 6661 movably mounted on the connecting plate 660 and the support plate 661 via an adjusting mechanism, located below the second transmission belt 6633. The tension of the second transmission belt 6633 is adjusted by regulating the distance between the first tensioning pulley 6660 and the second tensioning pulley 6661. Specifically, an elongated hole is formed in the connecting plate 660 and the support plate 661, and the second tensioning pulley 6661 is installed in this hole. The adjusting mechanism is a set screw or bolt threaded onto the connecting plate 660 and the support plate 661. Adjusting the set screw or bolt causes the second tensioning pulley 6661 to move closer to or further away from the first tensioning pulley 6660, thereby adjusting the tension of the second transmission belt 6633. In a preferred embodiment, bearings are installed on both the first tensioning pulley 6660 and the second tensioning pulley 6661. The friction is reduced at the contact point between the outer ring of the bearing and the surface of the second transmission belt 6633, making it easier for the second transmission belt 6633 to move.

[0045] The cantilevered milling assembly 5 includes a milling drive motor 50, a connecting bracket 51, a support sleeve 52, a drive shaft 53, and a milling cutter 54. The connecting bracket 51 is detachably mounted on the Y-axis mounting platform 27 by bolts. The support sleeve 52 is fixedly mounted on the top of the connecting bracket 51. The milling drive motor 50 is fixedly mounted on one end of the support sleeve 52 by bolts. The drive shaft 53 is rotatably mounted inside the support sleeve 52 by bearings. One end of the drive shaft 53 is fixedly connected to the output shaft of the milling drive motor 50 by a coupling. The other end of the drive shaft 53 extends out of the outer side of the end of the support sleeve 52 and is fixedly connected to the milling cutter 54. When the milling drive motor 50 is controlled to rotate, the milling cutter 54 is driven to rotate through the drive shaft 53 to achieve the milling operation.

[0046] The vertical lifting assembly 3 includes a Z-axis drive motor 30, a first pulley 31, a second pulley 32, a lead screw 33, a lead screw nut 34, and a Z-axis mounting platform 35. The Z-axis drive motor 30 is fixedly mounted inside the mounting base 1 by a motor bracket and connecting bolts. The output shaft of the Z-axis drive motor 30 is fixedly connected to the first pulley 31. The second pulley 32 is rotatably mounted on the side wall of the mounting base 1 by a pin. The first pulley 31 and the second pulley 32 are connected by a second toothed belt 36. One end of the lead screw 33 is fixedly connected to the second pulley 32 by a key. The other end of the lead screw 33 is rotatably mounted on the side wall of the mounting base 1 by a bearing seat. The lead screw 33 is vertically arranged. The lead screw nut 34 is sleeved on the lead screw 33. One end of the lead screw nut 34 is fixedly mounted on the side wall of the Z-axis mounting platform 35 by fasteners. The Z-axis mounting platform 35 is slidably mounted on the side wall of the mounting base 1. Specifically, two rows of Z-axis sliders 37 are fixedly installed on both ends of the side wall of the Z-axis mounting platform 35 using fasteners. Two Z-axis slide rails 38 are vertically fixedly installed at parallel intervals on the side wall of the mounting base 1. The two rows of Z-axis sliders 37 are slidably mounted on the two Z-axis slide rails 38 respectively. Through the Z-axis sliders 37 and Z-axis slide rails 38, the Z-axis mounting platform 35 can slide stably vertically along the mounting base 1. When the Z-axis drive motor 30 is energized and rotates, it drives the first pulley 31 and the second pulley 32, causing the lead screw 33 to rotate accordingly. Under the action of the lead screw nut 34, Z-axis sliders 37 and Z-axis slide rails 38, the Z-axis mounting platform 35 slides vertically back and forth.

[0047] The weight-reducing component 4 includes a sprocket 40, a chain 41, and a counterweight 42. The sprocket 40 is rotatably mounted on a second support base 43, which is fixedly mounted on the top of the mounting base 1 by fasteners. The chain 41 meshes with the sprocket 40, with the counterweight 42 attached to one end of the chain 41 and the other end connected to the support clamp 7. When the support clamp 7 is raised or lowered vertically, the counterweight 42 moves in the opposite direction under the action of the chain 41, achieving a weight-reducing effect on the support clamp 7. In one specific embodiment, two chains 41 are arranged in parallel, each chain 41 meshing with two sprockets 40. The chains 41 are arranged in an inverted U-shape on the two sprockets 40. The counterweight 42 is composed of multiple counterweight plates stacked together, which are bolted together as a whole. During use, a counterweight 42 of similar mass is selected based on the weight of the support clamp 7 and the plastic workpiece blank 8 mounted on it.

[0048] In a preferred embodiment, connecting clips 10 are fixedly installed on the top of the counterweight 42 and the side wall of the support clamp 7. The connecting clips 10 include two clip units 100 arranged opposite each other. A snap-fit ​​tooth 101 is integrally provided on one side of the clip unit 100. The two snap-fit ​​teeth 101 snap-fit ​​and fix the chain 41. A through hole is provided on the clip unit 100. The two clip units 100 are fixedly connected by bolts. After the chain 41 is snap-fit ​​and fixed, the two clip units 100 are fixed with bolts, so that the two ends of the chain 41 are respectively connected to the support clamp 7 and the counterweight 42.

[0049] The cross slide assembly 2 includes an X-axis slide rail 20, an X-axis slider 21, an X-axis drive assembly 22, an X-axis mounting platform 23, a Y-axis slide rail 24, a Y-axis slider 25, a Y-axis drive assembly 26, and a Y-axis mounting platform 27. The X-axis slide rail 20 is fixedly mounted on the top of the mounting base 1 by fasteners. One end of the X-axis slider 21 is fixedly mounted on the bottom of the X-axis mounting platform 23 by fasteners, and the other end of the X-axis slider 21 is slidably mounted on the X-axis slide rail 20. The X-axis drive assembly 22 is mounted on the top of the mounting base 1 and is used to drive the X-axis mounting platform 23 to slide back and forth linearly along the X-axis slide rail 20. Specifically, two X-axis slide rails 20 are arranged in parallel at intervals, and two or three X-axis sliders 21 are mounted on each X-axis slide rail 20. The Y-axis slide rail 24 is fixedly mounted on the top of the X-axis mounting platform 23 by fasteners. One end of the Y-axis slider 25 is fixedly mounted on the bottom of the Y-axis mounting platform 27 by fasteners, and the other end of the Y-axis slider 25 is slidably mounted on the Y-axis slide rail 24. The Y-axis drive assembly 26 is mounted on the top of the X-axis mounting platform 23 and is used to drive the Y-axis mounting platform 27 to reciprocate linearly along the Y-axis slide rail 24. Specifically, two Y-axis slide rails 24 are arranged in parallel at intervals, and two or three Y-axis sliders 25 are mounted on each Y-axis slide rail 24. The cantilever milling assembly 5 and the cantilever wiring device 6 are both fixedly mounted on the Y-axis mounting platform 27 by fasteners.

[0050] The X-axis drive assembly 22 and the Y-axis drive assembly 26 have the same structure. Taking the X-axis drive assembly 22 as an example, the X-axis drive assembly 22 includes a power motor fixedly mounted on the mounting base 1, a drive screw poweredly connected to the power motor, and a transmission nut connected to the drive screw. The two ends of the drive screw are rotatably mounted on the mounting base 1 through bearing seats. The transmission nut is fixedly mounted on the bottom of the X-axis mounting platform 23 by fasteners. When the power motor rotates, it drives the X-axis mounting platform 23 to slide linearly through the drive screw and the transmission nut. In the Y-axis drive assembly 26, the power motor is fixedly mounted on the X-axis mounting platform 23, and the transmission nut is fixedly mounted on the Y-axis mounting platform 27. During operation, the X-axis drive assembly 22 and the Y-axis drive assembly 26 are linked to adjust the planar positional relationship between the cantilever milling assembly 5 and the cantilever wiring device 6 relative to the plastic workpiece blank 8.

[0051] In a preferred embodiment, the mounting base 1 is a cubic structure with an open bottom, welded from multiple metal plates. Mounting feet are integrally formed on both sides of the bottom of the mounting base 1, and connection holes are provided on the mounting feet. Bolts are passed through the connection holes to fix the mounting base 1 to the ground, providing a stable foundation for the operation of electrofusion saddle-shaped pipe fittings. The support fixture 7 includes two opposing support bodies, which are detachably mounted on the top sides of the Z-axis mounting platform 35 by bolts. Several connecting through holes are provided on the upper surface of the Z-axis mounting platform 35. These connecting through holes can be threaded holes or oblong holes. The two support bodies are adjustablely connected to the connecting through holes to accommodate the installation of plastic workpiece blanks 8 of different sizes. Mounting holes are provided on the support bodies, and the plastic workpiece blanks 8 are detachably connected to the mounting holes by fasteners. The Z-axis mounting platform 35 has a U-shaped top view. In a specific embodiment, both the support fixture 7 and the Z-axis mounting platform 35 have multiple weight-reducing holes.

[0052] The control unit 9 is electrically connected to the X-axis drive assembly 22, Y-axis drive assembly 26, Z-axis drive motor 30, milling drive motor 50, rotary drive motor 61, oscillating drive motor 640, and traction drive motor 6630. Through the linkage of the X-axis drive assembly 22, Y-axis drive assembly 26, and Z-axis drive motor 30, it forms the orthogonal spatial three-axis drive system of the entire machine. During milling operations, the linkage between the three-axis drive system and the milling drive motor 50 constitutes a four-axis linkage drive display for milling operations. During wiring operations, the linkage between the three-axis drive system and the rotary drive motor 61 and oscillating drive motor 640 constitutes a five-axis linkage system, controlling the cutting edge direction of the grooving tool 633 and its position relative to the plastic workpiece blank 8, and wiring is performed according to a specified route. It should be noted that four-axis, five-axis, and even six-axis linkage control systems are developed by those skilled in the art based on actual needs, and can also be controlled by referring to the four-axis and five-axis control methods of the machine tool. These will not be described in detail in this specification.

[0053] The above embodiments are merely illustrative of the concept and implementation of the present invention and are not intended to limit it. Under the concept of the present invention, technical solutions without substantial changes are still within the scope of protection.

Claims

1. A machine for processing and wiring electrofusion saddle-shaped pipe fittings, comprising a mounting base, characterized in that: A cross slide assembly, a vertical lifting assembly, and a weight reduction assembly are mounted on the mounting base. A cantilever milling assembly and a cantilever wiring device are mounted on the cross slide assembly. A support fixture is detachably mounted on the vertical lifting assembly, and a plastic workpiece blank is mounted on the support fixture. The weight reduction assembly is connected to the vertical lifting assembly and is used to reduce the vertical load-bearing capacity of the vertical lifting assembly. The electrofusion saddle-shaped pipe fitting processing and wiring integrated machine also includes a control unit for controlling the linkage of the execution components. The control unit controls the vertical lifting assembly and the cross slide assembly to adjust the spatial position of the cantilever milling assembly and the cantilever wiring device relative to the plastic workpiece blank, thereby realizing the milling and wiring operation of the plastic workpiece blank.

2. The integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings according to claim 1, characterized in that: The cantilevered wiring device includes a mounting bracket, a rotary drive motor, a cantilevered shaft tube, a slotted wiring assembly, a swing drive assembly, a wire storage assembly, and a wire feeding assembly. The cantilevered shaft tube is rotatably mounted on the mounting bracket, with one end fixedly connected to the output shaft of the rotary drive motor. The slotted wiring assembly is detachably mounted on the other end of the cantilevered shaft tube. The swing drive assembly is mounted on the cantilevered shaft tube and is poweredly connected to the slotted wiring assembly. The wire storage assembly is detachably mounted on the cross slide assembly. The wire feeding assembly is detachably mounted on the cantilevered shaft tube. The metal wire is wound on the wire storage assembly and connected to the slotted wiring assembly via the wire feeding assembly. The rotary drive motor and the swing drive assembly work together to control the slotting and wiring direction of the slotted wiring assembly.

3. The electrofusion saddle-shaped pipe fitting processing and wiring integrated machine according to claim 2, characterized in that: The slotted wiring assembly includes a connector, a rotatably mounted cutter bar on the connector, and a slotting cutter detachably mounted on one end of the cutter bar via a pressure ring. One end of the pressure ring has a compaction part, the bottom surface of which is higher than the bottom of the slotting cutter. A wire-passing hole is coaxially arranged on the cutter bar and the slotting cutter. The metal wire passes through the wire-passing hole from one end of the cutter bar and exits through the slotting cutter. When the metal wire is embedded in the slot made by the slotting cutter, the compaction part compacts the raised part of the slot and the metal wire. The slotting cutter is composed of a cutter front body and a cutter rear body. The cutter front body has a cutting edge, and the bottom of the cutter front body is lower than the bottom of the cutter rear body.

4. The integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings according to claim 2 or 3, characterized in that: The swing drive assembly includes a swing drive motor, a first support base, a first drive pulley, a first driven pulley, a first transmission belt, and a reversing roller. The first support base is fixedly mounted on the cantilevered shaft tube near the mounting bracket. The swing drive motor is fixedly mounted on the first support base. The first drive pulley is fixedly mounted on the output shaft of the swing drive motor. The first driven pulley is mounted on the slotted wiring assembly. The first drive pulley and the first driven pulley are poweredly connected through the first transmission belt. The reversing roller can be rotatably mounted on both the slotted wiring assembly and the first support base. The reversing roller is used to arrange the first transmission belt on one side of the cantilevered shaft tube. A wire groove is formed on the cantilevered shaft tube. Multiple wire harness blocks are detachably mounted on the cantilevered shaft tube, and the multiple wire harness blocks hold the metal wires in the wire groove.

5. The electrofusion saddle-shaped pipe fitting processing and wiring integrated machine according to claim 2, characterized in that: The wire storage assembly includes a support handle, a damping shaft, and a wire storage groove wheel. One end of the support handle is detachably mounted on the cross slide assembly, and the other end of the support handle is mounted on the damping shaft. The wire storage groove wheel is mounted on the damping shaft, and the wire is wound around the wire storage groove wheel. When one end of the wire is pulled, the wire storage groove wheel rotates slowly under the damping action of the damping shaft, so that the wire is in a straight state. A sensor for detecting the number of rotations of the wire storage groove wheel is installed on the support handle.

6. The electrofusion saddle-shaped pipe fitting processing and wiring integrated machine according to claim 2 or 5, characterized in that: The wire feeding assembly includes a connecting plate, a support plate, a clamping mechanism, a traction drive mechanism, and a wire feeding tube. The wire feeding tube is located between the clamping mechanism and the traction drive mechanism. Multiple extrusion sections are provided on the wire feeding tube. The metal wire passes through the wire feeding tube and is partially exposed outside the extrusion sections. The traction drive mechanism allows the metal wire located at the extrusion sections to move in a specified direction. The clamping mechanism includes an adjusting seat rotatably mounted on the support plate at one end, a roller rotatably mounted on the adjusting seat, a fixed seat mounted on the support plate, and an adjusting top screw mounted on the fixed seat. One end of the adjusting top screw abuts against the swingable end of the adjusting seat. The traction drive mechanism includes a traction drive motor, a second drive pulley, a second driven pulley, a second transmission belt, and a traction drive shaft. The traction drive motor is fixedly mounted on the connecting plate, and the second drive pulley is fixedly mounted on the traction drive mechanism. On the output shaft of the drive motor, the second driven pulley is rotatably mounted on the connecting plate or the support plate. The second driven pulley and the second drive pulley are connected by the second transmission belt. The traction drive shaft is fixedly mounted at one end of both the second drive pulley and the second driven pulley. One end of the traction drive shaft passes through the support plate and is located on one side of the support plate. The traction drive mechanism pulls the metal wire wound on the wire storage assembly to move in a specified direction to feed the wire for the slotted wiring assembly. A tensioning assembly is also installed on the connecting plate and the support plate. The tensioning assembly includes a first tensioning wheel rotatably mounted on the connecting plate and the support plate and located above the second transmission belt, and a second tensioning wheel movably mounted on the connecting plate and the support plate and located below the second transmission belt through an adjustment mechanism. Adjusting the distance between the second tensioning wheel and the first tensioning wheel adjusts the tension of the second transmission belt.

7. The integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings according to claim 1, characterized in that: The cantilever milling assembly includes a milling drive motor, a connecting bracket, a support sleeve, a drive shaft, and a milling cutter. The connecting bracket is detachably mounted on the cross slide assembly. The support sleeve is fixedly mounted on the connecting bracket. The milling drive motor is fixedly mounted on one end of the support sleeve. The drive shaft is rotatably mounted inside the support sleeve. One end of the drive shaft is fixedly connected to the output shaft of the milling drive motor, and the other end of the drive shaft extends out of the support sleeve and is fixedly connected to the milling cutter.

8. The integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings according to claim 1 or 7, characterized in that: The vertical lifting assembly includes a Z-axis drive motor, a first pulley, a second pulley, a lead screw, a lead screw nut, and a Z-axis mounting platform. The Z-axis drive motor is fixedly mounted on the mounting base via a motor bracket. The output shaft of the Z-axis drive motor is fixedly connected to the first pulley. The second pulley is rotatably mounted on the side wall of the mounting base. The first pulley and the second pulley are connected by a second toothed belt. One end of the lead screw is fixedly connected to the second pulley, and the other end of the lead screw is rotatably mounted on the side wall of the mounting base. The lead screw nut is fitted onto the lead screw, and one end of the lead screw nut is fixedly mounted on the side wall of the Z-axis mounting platform. The Z-axis mounting platform is slidably mounted on the side wall of the mounting base.

9. The integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings according to claim 1, characterized in that: The weight reduction component includes a sprocket, a chain, and a counterweight. The sprocket is rotatably mounted on the mounting base via a second support. The chain meshes with the sprocket, with the counterweight attached to one end of the chain and the other end connected to the support clamp. The counterweight is composed of multiple counterweight plates stacked together, and the multiple counterweight plates are connected as a whole by bolts.

10. The integrated machine for processing and wiring electrofusion saddle-shaped pipe fittings according to claim 1 or 9, characterized in that: The cross slide assembly includes an X-axis slide rail, an X-axis slider, an X-axis drive assembly, an X-axis mounting platform, a Y-axis slide rail, a Y-axis slider, a Y-axis drive assembly, and a Y-axis mounting platform. The X-axis slide rail is fixedly mounted on the mounting base. One end of the X-axis slider is fixedly mounted on the bottom of the X-axis mounting platform, and the other end of the X-axis slider is slidably mounted on the X-axis slide rail. The X-axis drive assembly is mounted on the mounting base and is used to drive the X-axis mounting platform to reciprocate along the X-axis slide rail. The Y-axis slide rail is fixedly mounted on the X-axis mounting platform. One end of the Y-axis slider is fixedly mounted on the bottom of the Y-axis mounting platform, and the other end of the Y-axis slider is slidably mounted on the Y-axis slide rail. The Y-axis drive assembly is mounted on the X-axis mounting platform and is used to drive the Y-axis mounting platform to reciprocate along the X-axis slide rail.

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