A fully automatic hot-melt welding machine

Abstract

The application discloses a kind of full-automatic hot melting welding machine, it is related to pipeline hot melting connection equipment field, comprising: rack, the inside both sides of the rack are respectively equipped with fixed clamp group and movable clamp group, the fixed clamp group and movable clamp group are all arranged on the two first support rods of the rack;Servo motor, the movable clamp group includes first movable clamp and second movable clamp, the first movable clamp and second movable clamp are interconnected, and can move synchronously;The servo motor is used to drive the movable clamp group to move along the length direction of the first support rod.This application is through full electric scheme, while using electric control, servo motor drives clamp to move to complete welding work, and welding machine does not need to configure external hydraulic accessory again, which greatly reduces the mass, volume of equipment, also reduces the failure rate of equipment;And through the control of servo motor, the moving control precision can also be improved.

Description

Technical Field

[0001] This invention relates to the field of pipe hot-melt connection equipment, and more specifically to a fully automatic hot-melt welding machine. Background Technology

[0002] Hot-melt piping typically refers to plastic piping systems installed using a hot-melt connection method. This involves simultaneously heating the pipes and fittings to a molten state using specialized heating tools, then rapidly pressing them together and allowing them to cool and solidify, forming a strong, sealed, integral piping system. The welding step requires the use of welding equipment. Welding equipment can be broadly categorized into three types: manual, semi-automatic, and fully automatic. Manual equipment is only suitable for welding small-diameter pipes and cannot handle large-diameter welding.

[0003] Semi-automatic and fully automatic welding equipment cover a wider range of welding diameters. Semi-automatic welding requires manual control of equipment operation and calculation of welding parameters, which can easily lead to various operational errors and calculation mistakes, making it difficult to guarantee welding quality. Fully automatic welding equipment eliminates the need for manual control and parameter calculations during the welding process.

[0004] Currently, fully automatic welding machines on the market operate with electrically controlled welding processes. Aside from the main welding machine body, fully automatic welding machines, like semi-automatic ones, still require external hydraulic accessories powered by electricity. For example, a fully automatic hot-melt welding machine, as disclosed in the application document CN 114834056A, primarily includes hydraulic pumps, solenoid valves, hydraulic pipes, and hydraulic oil in its hydraulic accessories. However, the inclusion of numerous hydraulic accessories not only increases the weight and size of the equipment and its failure rate, making it unsuitable for outdoor construction sites with poor transportation and harsh environments, but also fails to guarantee the control accuracy during clamp movement, thus keeping the actual difficulty and cost of pipeline welding work high. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention aims to provide a fully automatic hot melt welding machine. Through an all-electric solution, a servo motor drives the fixture to move and complete the welding work while using electric control. The welding machine no longer needs to be equipped with external hydraulic accessories, which significantly reduces the weight and size of the equipment and also reduces the failure rate. Furthermore, the control of the servo motor can also improve the accuracy of movement control.

[0006] This invention is achieved through the following technical solution:

[0007] A fully automatic hot melt welding machine, comprising:

[0008] The frame has a fixed clamp group and a movable clamp group on its two sides inside. The fixed clamp group and the movable clamp group are both mounted on two first support rods of the frame. The fixed clamp group is fixedly connected to the first support rods, and the movable clamp group is movably connected to the first support rods and can move along the length of the first support rods.

[0009] The servo motor is used to drive the movable clamp assembly to move along the length direction of the first support rod. The movable clamp assembly includes a first movable clamp and a second movable clamp, which are connected to each other and can move synchronously.

[0010] Compared to existing technologies, fully automatic welding machines often have numerous hydraulic attachments, increasing both the weight and size of the equipment and compromising control precision during clamp movement. This invention provides a fully automatic hot melt welding machine that utilizes an all-electric design. While employing electric control, a servo motor drives the clamp movement to complete the welding operation. The welding machine eliminates the need for external hydraulic attachments, significantly reducing its weight, size, and failure rate. Furthermore, the servo motor control improves movement control precision. Specifically, the machine includes a frame and fixed and movable clamp groups on the frame. The fixed clamp group includes two synchronously moving movable clamps, while the fixed clamp group includes two fixed clamps. The two movable clamps hold one pipe, and the two fixed clamps hold another pipe. A servo motor, which can be linearly or rotary driven, is located at the movable clamp group. The servo motor drives the movable clamp group to move along the length of the first support rod, moving the clamped pipe towards the welding pad to achieve welding.

[0011] To further optimize the displacement control accuracy, the servo motor is a rotary motor, and the first support rod includes a threaded section and a straight section.

[0012] A threaded sleeve is provided between the installation space of the first movable fixture and the threaded section, and a sliding sleeve is provided between the installation space of the second movable fixture and the straight section; the inner side of the threaded sleeve is threaded and threadedly fitted onto the threaded section, and the outer side of the threaded sleeve and the installation space of the first movable fixture are rotatably connected by a first bearing; the inner side of the sliding sleeve is slidably fitted onto the straight section, and the outer side of the sliding sleeve is fixedly connected to the second movable fixture.

[0013] The rotary motor is fixed to the first movable fixture and is used to drive the threaded sleeve to rotate. In this solution, the servo motor is set as a rotary motor, and a portion of the first support rod is set as a threaded segment to achieve rotary drive. Specifically, the connection position between the first movable fixture and the threaded segment of the first support rod has an installation space, and the installation space is provided with a threaded sleeve. The outer side of the threaded sleeve and the installation space are rotatably connected through a first bearing, and the end of the threaded sleeve is limited by the installation space. The inner side of the threaded sleeve has threads and is threadedly connected to the threaded segment. In this way, the rotary motor drives the threaded sleeve to rotate, and the threaded sleeve can advance on the threaded segment of the first support rod. Since the outer side of the threaded sleeve is rotatably connected, the rotation of the threaded sleeve will not drive the first movable fixture to rotate, but will only push the first movable fixture forward or backward in the installation space to achieve displacement.

[0014] In a further optimization, as a specific implementation of a rotary motor driving a threaded sleeve to rotate, the first movable clamp has three installation spaces evenly distributed on the circumferential sidewall of its housing. Two of the installation spaces are connected by the threaded sleeve and the threaded sections of two first support rods, respectively. The other installation space is provided with two meshing transmission teeth. Both transmission teeth are coaxially connected to a first pulley, and the rotary motor is used to drive one of the transmission teeth to rotate.

[0015] Both threaded sleeves are fixedly fitted with second pulleys on their outer sides, and the first pulley and the second pulley located on the same side are connected by a belt drive. In this design, a servo motor is fixed to the first movable fixture, and its output end extends into another installation space and is coaxially connected to a transmission gear to drive the transmission gear to rotate. The other transmission gear meshes and drives the gear to rotate synchronously. The rotation of the transmission gear drives the first pulley to rotate. Since the second pulley is fixed to the outer side of the threaded sleeve, and a belt is fitted between the first and second pulleys, the rotation of the two first pulleys can drive the two threaded sleeves to rotate synchronously, thereby synchronously driving the first movable fixture to move and achieving drive control.

[0016] For further optimization, to ensure high synchronization of the rotation of the two threaded sleeves, a tensioning unit is provided between the opposing surfaces of the two belts. The tensioning unit includes a fixed rod located inside the housing of the first movable clamp and placed laterally between the two belts. A threaded sleeve is connected to both ends of the fixed rod. One end of the threaded sleeve is threaded onto the end of the fixed rod and placed in a transverse placement groove inside the first movable clamp. The other end of the threaded sleeve holds a third pulley, which can rotate freely and abuts against the opposite belt. In this design, a transverse placement groove is provided between the two belts, perpendicular to the center line between the two belts. A fixing rod is located inside the transverse placement groove, and its two ends are threadedly connected to threaded sleeves. The threaded sleeves are confined within the transverse placement groove, with their ends extending out and rotating to hold a third pulley. The threaded sleeves can only move along the length of the transverse placement groove. By rotating the threaded sleeves, the extension length of the third pulley can be adjusted, causing the third pulley to press against one side of the belt, thereby adjusting its tension. Through the above control, the two belts can be driven synchronously as much as possible to drive the two threaded sleeves to rotate synchronously.

[0017] Further optimization, to facilitate the displacement of the first movable clamp by the threaded sleeve, the threaded sleeve includes a large diameter section and a small diameter section in sequence in the direction of the second movable clamp. The second pulley is fixedly sleeved on the small diameter section, and a first bearing is provided on both sides of the second pulley. The first bearing includes an inner ring and an outer ring arranged coaxially. The inner ring is connected to the threaded sleeve, and the outer ring is connected to the side wall of the mounting space.

[0018] A second bearing is provided between the end of the threaded sleeve facing the second movable fixture and the installation space. The second bearing includes a left ring and a right ring. The right ring is connected to the end of the threaded sleeve, and the left ring is connected to the side wall of the installation space. In this design, the threaded sleeve is entirely confined within the installation space. The threaded sleeve has a large-diameter section and a small-diameter section, and the second pulley is fitted onto the small-diameter section for easy installation. First bearings are provided on both sides of the second pulley to achieve a rotational connection between the threaded sleeve and the first movable fixture. Second bearings are provided at one or both ends of the threaded sleeve to achieve a rotational connection of the end faces and avoid end-face friction. Both the first and second bearings are ball bearings.

[0019] To further optimize the system and enable the first and second movable clamps to move synchronously, a protective sleeve is connected between the first and second movable clamps. The protective sleeve is fitted onto the first support rod and has a circumferential gap between it and the first support rod.

[0020] Further optimization, in order to realize the displacement and engagement of the welding components, also includes a welding component, wherein the rear side of the frame is provided with two upper and lower second support rods, and each of the two second support rods is fitted with a sliding sleeve;

[0021] The welding assembly includes a welding pad, which is hinged to a first hinge rod and a sliding sleeve on an upper second support rod. A second hinge rod is hinged to the hinge end of the first hinge rod, and the middle part of the second hinge rod is hinged to a sliding sleeve on a lower second support rod. A thrust telescopic rod is hinged to the end of the second hinge rod away from the first hinge rod. The output end of the thrust telescopic rod is connected to the first hinge rod and always applies a thrust to the first hinge rod.

[0022] It also includes a locking assembly, the fixing fixture group including two fixing fixtures; one end of the locking assembly is slidably connected to the outer wall of the first movable fixture, and the other end is slidably connected to the outer wall of a fixing fixture near the first movable fixture; the first hinge rod is provided with a locking tongue, and when the welding disc is rotated to the working position through the first hinge rod, the locking assembly is used to cooperate with the locking tongue to fix or release the locking tongue. In this design, the welding assembly includes a welding disc, a first hinge rod, and a second hinge rod connected in sequence. The first hinge rod is rotatably sleeved on the sliding sleeve of the upper second support rod, and one end of the second hinge rod is rotatably sleeved on the end of the first hinge rod, while the middle part is rotatably sleeved on the sliding sleeve of the lower second support rod. A handle is also provided on the welding disc. Thus, the entire welding assembly can slide laterally as a whole. When it moves to the designated position, the operator holds the handle, causing the welding disc to press down and enter the lower welding position. At this time, the locking tongue also enters the locking component position and is locked by the locking component. When it is necessary to move the welding disc out of the workstation, the locking component releases the locking tongue. At this time, under the thrust of the thrust telescopic rod, the welding disc is automatically ejected. The thrust telescopic rod can be a telescopic rod, similar to a damper, with an internal thrust spring.

[0023] For further optimization, in order to achieve the engagement of the locking tongue, the engagement assembly includes a back plate, and the second movable clamp and an adjacent fixed clamp are both provided with extension rods on the outer side wall in the direction of the second support rod;

[0024] The back plate is arranged along the length of the second support rod, and two first elongated holes are respectively provided at both ends of the back plate. Both first elongated holes are arranged along the length of the back plate. One end of each of the two extension rods passes through the two first elongated holes and is connected to a limiting gasket. The back plate is hung on the two extension rods.

[0025] The back plate has a slot in the middle of the upper side, which is adapted to the width of the first hinge rod and is used to allow the first hinge rod to enter.

[0026] Two grippers are provided in the middle of the side of the back plate away from the second support rod, with the upper ends of the two grippers facing the slot. The lower ends of the grippers are hinged to the back plate, and the back plate also has an elastic drive assembly for driving the upper ends of the two grippers to clamp towards each other or move away from each other. The locking tongue is fixed to the lower side of the first hinge rod and extends outward. When the first hinge rod is engaged in the slot, the locking tongue is engaged between the two grippers. In this solution, the engaging assembly includes a back plate, which is hung on two extension rods. The two extension rods pass through two first elongated holes, and the ends of the extension rods are equipped with limiting washers. The diameter of the limiting washers is larger than the width of the first elongated holes to confine the back plate inside, preventing the back plate from falling while allowing the extension rods to move along the direction of the first elongated holes. Two grippers are located on the rear side of the center of the back plate. These grippers are elongated and have grooves at their upper ends, which face each other to form a clamping groove. The upper end face of each gripper has a guide surface that slopes inward and downward to facilitate the entry of the latch, which is an outwardly extending protrusion. When the operator presses down on the welding plate, the periphery of the first hinge rod enters the slot, while the latch presses against the two grippers and moves downward into the clamping groove. The two grippers are then reset by the elastic drive assembly.

[0027] Further optimization is achieved by linking the locking assembly, the welding plate, and the moving fixture assembly to enable automatic unlocking of the locking assembly and synchronous displacement of the welding plate. The elastic drive assembly includes two movable plates, both of which are parallel to the back plate and are located on the side of the back plate facing the second support rod. The movable plates are provided with several second elongated holes, and the back plate is connected to the corresponding second elongated holes by several bolts.

[0028] The movable plate also has a third elongated hole. Both the second and third elongated holes are arranged along the length of the first elongated hole, and the third elongated hole is directly opposite the first elongated hole at the same position. The lower sides of the adjacent ends of the two movable plates each have a downward protruding bump, and a return spring is connected between the two bumps.

[0029] The lower end of the gripper is provided with a first connector, which passes through the through hole on the back plate and the elongated slot on the movable plate in sequence. The elongated slot is arranged along the length of the first elongated hole, and the first connector can slide on the elongated slot. The middle part of the gripper is provided with a second connector, which passes through the arc-shaped hole on the back plate and the hinge hole on the movable plate in sequence.

[0030] The movement of the two movable plates toward each other or away from each other can be caused by the second connector to move the upper ends of the two grippers toward each other or away from each other.

[0031] The elastic drive assembly also includes a pawl, the middle of which is rotatably mounted on the extension rod, and the end of which is away from the other pawl is an outwardly extending pawl end, which can rotate downward under its own weight.

[0032] The lower side of the third elongated hole is equipped with a toothed rack, and the claw end can extend into the tooth groove of the toothed rack. After extending into the tooth groove, the claw end can move towards the middle of the back plate.

[0033] The pawl is located inside the third elongated hole, and the width of the third elongated hole is less than the length of the pawl; when the movable plate moves downward, it can squeeze the other end of the pawl, causing the pawl end to disengage from the rack; and when the movable plate moves upward, it can disengage from the other end of the pawl, causing the pawl end to engage with the rack under its own weight. In this design, the two movable plates are respectively hung on their corresponding extension rods through the third elongated holes and are restrained by limiting washers to prevent them from falling. The movable plates are connected to the back plate by bolts through several second elongated holes to achieve a small lateral displacement of the movable plates relative to the back plate. The two movable plates have elongated slots on their opposite end faces to allow the first connector to move laterally. The width of the arc-shaped hole on the back plate is larger than the diameter of the second connector. Thus, when the latch needs to be released, i.e., when the two movable plates are moved away from each other, the lower first connector remains stationary, and the elongated slot gradually slides out. Meanwhile, the upper second connector makes a small arc-shaped movement on the arc-shaped hole of the back plate to drive the two grippers to rotate away from each other, thereby releasing the latch. Secondly, to drive the two movable plates, the elastic drive assembly also includes pawls. The ends of the two pawls that are far apart from each other are the pawl ends, and the ends that are close together are the drive ends. When the movable plate moves down, it can press down on the drive end of the other end of the pawl, so that the pawl end of one end of the pawl can rotate upward, thereby disengaging from the rack. When the movable plate moves up, it can release the pawl, so that the pawl end rotates downward and enters the rack under its own weight. At this time, the movable clamp assembly can move forward. When moving backward, due to the limitation of the pawl, it can synchronously drive the movable plate to move backward, thereby opening the two pawls through the movable plate, releasing the locking tongue, and popping out the welding plate.

[0034] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0035] 1. This invention provides a fully automatic hot melt welding machine. Through an all-electric solution, while using electric control, a servo motor drives the fixture to move to complete the welding work. The welding machine no longer needs to be equipped with external hydraulic accessories, which greatly reduces the weight and size of the equipment and also reduces the failure rate of the equipment. Moreover, the control of the servo motor can also improve the accuracy of movement control.

[0036] 2. This invention provides a fully automatic hot melt welding machine, which uses a servo motor to rotate and control the belt for transmission, and moves in steps through a threaded engagement, thereby further improving the accuracy and stability of movement control.

[0037] 3. This invention provides a fully automatic hot melt welding machine that can achieve automatic fixing and ejection of the welding disc through the integration and cooperation of the welding components, the clamping components, and the movable clamping group, and achieve the hot melting and automatic separation of the welding disc from the pipes on both sides, thereby improving the degree of automation. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0039] Figure 1 A schematic diagram of an isometric view of the fully automatic hot melt welding machine provided by the present invention;

[0040] Figure 2 This is a schematic diagram of the interior of the first movable fixture in the fully automatic hot melt welding machine provided by the present invention;

[0041] Figure 3 Provided by the present invention Figure 2 Enlarged view of point A in the middle;

[0042] Figure 4 A front view of the interior of the first movable fixture in the automatic hot melt welding machine provided by the present invention;

[0043] Figure 5 This is a cross-sectional view of the threaded sleeve position in the automatic hot melt welding machine provided by the present invention;

[0044] Figure 6 Provided by the present invention Figure 5 Enlarged view of point B in the middle;

[0045] Figure 7 Another isometric view of the fully automatic hot melt welding machine provided by the present invention;

[0046] Figure 8 This is a partial schematic diagram of the connection between the welding assembly and the engaging assembly provided by the present invention;

[0047] Figure 9 This is a schematic diagram showing another direction of the connection between the welding assembly and the engaging assembly provided by the present invention;

[0048] Figure 10A front view of the connection between the welding assembly and the engagement assembly provided by the present invention (with the limiting gasket removed).

[0049] Figure 11 Provided by the present invention Figure 10 Enlarged view of point C in the middle;

[0050] Figure 12 An isometric view of the engagement assembly provided by this invention;

[0051] Figure 13 Rear view of the engagement assembly provided by the present invention;

[0052] Figure 14 This is a schematic diagram of the welding assembly provided by the present invention.

[0053] The attached diagram shows the markings and corresponding component names:

[0054] 1-Frame, 2-Fixed clamping assembly, 201-Fixed clamp, 3-Modible clamping assembly, 301-First movable clamp, 302-Second movable clamp, 303-Protective sleeve, 4-First support rod, 5-Servo motor, 501-Threaded sleeve, 502-Sliding sleeve, 503-First bearing, 504-Transmission gear, 505-First pulley, 506-Belt, 507-Fixed rod, 508-Threaded clamp, 509-Third pulley, 510-Second bearing, 511-Second pulley, 6-Welding assembly, 601-Welding Connecting plate, 602-First hinge rod, 603-Second hinge rod, 604-Thrust telescopic rod, 605-Lock tongue, 7-Second support rod, 8-Activation assembly, 801-Back plate, 8011-First elongated hole, 8012-Slot, 8013-Arc-shaped hole, 802-Limiting washer, 803-Gripper, 804-Moving plate, 8041-Second elongated hole, 8042-Third elongated hole, 8043-Elongated slot, 8044-Rack, 805-Reset spring, 806-Pawl, 807-Extension rod, 9-Sliding sleeve. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0056] Example 1: This Example 1 provides a fully automatic hot melt welding machine, such as... Figures 1-6 As shown, it includes:

[0057] The frame 1 has a fixed clamp group 2 and a movable clamp group 3 respectively provided on both sides inside the frame 1. The fixed clamp group 2 and the movable clamp group 3 are both set on two first support rods 4 of the frame 1. The fixed clamp group 2 and the first support rods 4 are fixedly connected, and the movable clamp group 3 and the first support rods 4 are movably connected and can move along the length direction of the first support rods 4.

[0058] The servo motor 5 is used to drive the movable clamp group 3 to move along the length direction of the first support rod 4. The movable clamp group 3 includes a first movable clamp 301 and a second movable clamp 302, which are connected to each other and can move synchronously.

[0059] Compared to existing technologies, fully automatic welding machines have numerous hydraulic attachments, which not only increase the weight and size of the equipment but also fail to guarantee control accuracy during fixture movement. This invention provides a fully automatic hot melt welding machine that uses an all-electric solution. While using electric control, a servo motor 5 drives the fixture to move and complete the welding work. The welding machine no longer needs to be equipped with external hydraulic attachments, which significantly reduces the weight and size of the equipment and also reduces the failure rate. Furthermore, the control of the servo motor 5 also improves the movement control accuracy. The specific solution includes a frame 1 and a fixed clamp group 2 and a movable clamp group 3 on the frame 1. The fixed clamp group 2 includes two movable clamps that can move synchronously, and the fixed clamp group 2 includes two fixed clamps 201. The two movable clamps are used to clamp one pipe, and the two fixed clamps 201 are used to clamp another pipe. A servo motor 5 is also provided at the position of the movable clamp group 3. The servo motor 5 can be linearly driven or rotary driven. The servo motor 5 can drive the movable clamp group 3 to move along the length direction of the first support rod 4, so that the clamped pipe moves towards the welding plate 601 to achieve welding.

[0060] In some embodiments, such as Figures 4-6 As shown, to improve displacement control accuracy, the servo motor 5 is a rotary motor, and the first support rod 4 includes a threaded section and a straight section;

[0061] A threaded sleeve 501 is provided between the mounting space of the first movable clamp 301 and the threaded section, and a sliding sleeve 502 is provided between the mounting space of the second movable clamp 302 and the straight section; the inner side of the threaded sleeve 501 is threaded and is disposed on the threaded section, and the outer side of the threaded sleeve 501 and the mounting space of the first movable clamp 301 are rotatably connected by a first bearing 503; the inner side of the sliding sleeve 502 is disposed on the straight section, and the outer side of the sliding sleeve 502 is fixedly connected to the second movable clamp 302;

[0062] The rotary motor is fixed to the first movable clamp 301 and is used to drive the threaded sleeve 501 to rotate. In this scheme, the servo motor 5 is set as a rotary motor, and a portion of the first support rod 4 is set as a threaded segment to achieve rotary drive. Specifically, the connection position between the first movable clamp 301 and the threaded segment of the first support rod 4 has an installation space, and the installation space is provided with a threaded sleeve 501. The outer side of the threaded sleeve 501 and the installation space are rotatably connected through the first bearing 503, and the end of the threaded sleeve 501 is limited by the installation space. The inner side of the threaded sleeve 501 has threads and is threadedly connected to the threaded segment. In this way, the rotary motor drives the threaded sleeve 501 to rotate, and the threaded sleeve 501 can advance on the threaded segment of the first support rod 4. Since the outer side of the threaded sleeve 501 is rotatably connected, the rotation of the threaded sleeve 501 will not drive the first movable clamp 301 to rotate, but will only push the first movable clamp 301 forward or backward in the installation space to achieve displacement.

[0063] In some embodiments, such as Figures 2-4 As shown, in a specific implementation of a rotary motor driving the threaded sleeve 501 to rotate, the first movable clamp 301 has three mounting spaces evenly distributed on the circumferential sidewall of its housing. Two of the mounting spaces are connected by the threaded sleeve 501 and the threaded sections of the two first support rods 4, respectively. The other mounting space is provided with two meshing transmission teeth 504. Each of the two transmission teeth 504 is coaxially connected to a first pulley 505, and the rotary motor is used to drive one of the transmission teeth 504 to rotate.

[0064] Both threaded sleeves 501 are fixedly fitted with second pulleys 511 on their outer sides. The first pulley 505 and the second pulley 511 located on the same side are connected by a belt 506. In this design, the servo motor 5 is fixed to the first movable clamp 301, and its output end extends into another installation space and is coaxially connected to a transmission gear 504 to drive the transmission gear 504 to rotate. The other transmission gear 504 engages to drive synchronous rotation. The rotation of the transmission gear 504 can drive the first pulley 505 to rotate. Since the second pulley 511 is fixed to the outer side of the threaded sleeve 501, and a belt 506 is fitted between the first pulley 505 and the second pulley 511, the rotation of the two first pulleys 505 can drive the two threaded sleeves 501 to rotate synchronously, so that the two threaded sleeves 501 synchronously drive the first movable clamp 301 to move, thereby realizing drive control.

[0065] In some embodiments, such as Figure 4As shown, in order to achieve a high synchronization rate in the rotation of the two threaded sleeves 501, a tensioning unit is provided between the opposing surfaces of the two belts 506. The tensioning unit includes a fixing rod 507, which is located inside the housing of the first movable clamp 301 and is placed laterally between the two belts 506. A threaded sleeve 508 is connected to both ends of the fixing rod 507. One end of the threaded sleeve 508 is provided with a threaded sleeve 501 at the end of the fixing rod 507 and is placed in a transverse placement groove inside the first movable clamp 301. The other end of the threaded sleeve 508 clamps a third pulley 509, which can rotate freely and abuts against the opposite belt 506. In this design, a transverse placement groove is provided between the two belts 506. The transverse placement groove is perpendicular to the center line between the two belts 506. The fixing rod 507 is located in the transverse placement groove, and its two ends are threadedly connected to threaded sleeves 508. The threaded sleeves 508 are confined in the transverse placement groove, and their ends extend out and rotate to hold the third pulley 509. The threaded sleeves 508 can only move along the length direction of the transverse placement groove. By rotating the threaded sleeves 508, the extension length of the third pulley 509 can be adjusted, so that the third pulley 509 squeezes one side of the belt 506, thereby adjusting its tension. Through the above control, the two belts 506 can be driven synchronously as much as possible to drive the two threaded sleeves 501 to rotate synchronously.

[0066] In some embodiments, such as Figure 6 As shown, to facilitate the displacement of the first movable clamp 301 by the threaded sleeve 501, the threaded sleeve 501 includes a large diameter section and a small diameter section in sequence in the direction of the second movable clamp 302. The second pulley 511 is fixedly sleeved on the small diameter section, and a first bearing 503 is provided on both sides of the second pulley 511. The first bearing 503 includes an inner ring and an outer ring arranged coaxially. The inner ring is connected to the threaded sleeve 501, and the outer ring is connected to the side wall of the mounting space.

[0067] A second bearing 510 is provided between the end of the threaded sleeve 501 facing the second movable clamp 302 and the installation space. The second bearing 510 includes a left ring and a right ring. The right ring is connected to the end of the threaded sleeve 501, and the left ring is connected to the side wall of the installation space. In this design, the threaded sleeve 501 is entirely confined within the installation space. The threaded sleeve 501 has a large-diameter section and a small-diameter section. The second pulley 511 is fitted onto the small-diameter section for easy installation. First bearings 503 are provided on both sides of the second pulley 511 to achieve a rotational connection between the threaded sleeve 501 and the first movable clamp 301. Second bearings 510 are provided at one or both ends of the threaded sleeve 501 to achieve a rotational connection of the end faces and avoid end-face friction. Both the first bearing 503 and the second bearing 510 are ball bearings.

[0068] In some embodiments, such as Figure 5 As shown, in order to make the first movable clamp 301 and the second movable clamp 302 move synchronously, a protective sleeve 303 is connected between the first movable clamp 301 and the second movable clamp 302. The protective sleeve 303 is sleeved on the first support rod 4 and a circumferential gap is left between it and the first support rod 4.

[0069] Example 2: This Example 2 further optimizes Example 1 by providing a combined linkage between the welding assembly 6, the locking assembly 8, and the movable clamp group 3. This enables automatic locking and release of the welding assembly 6, as well as welding and separation between the pipes on both sides and the welding disc 601, thereby improving automation. Figures 7-14 As shown.

[0070] In this embodiment, in order to realize the displacement and engagement of the welding component 6, the welding component 6 is also included. The rear side of the frame 1 is provided with two upper and lower second support rods 7, and each of the two second support rods 7 is fitted with a sliding sleeve 9.

[0071] The welding assembly 6 includes a welding disk 601, which is hinged to a first hinge rod 602 and a sliding sleeve 9 on the upper second support rod 7. A second hinge rod 603 is hinged to the hinge end of the first hinge rod 602, and the middle part of the second hinge rod 603 is hinged to the sliding sleeve 9 on the lower second support rod 7. A thrust telescopic rod 604 is hinged to the end of the second hinge rod 603 away from the first hinge rod 602. The output end of the thrust telescopic rod 604 is connected to the first hinge rod 602 and always applies a thrust to the first hinge rod 602.

[0072] It also includes a locking assembly 8. The fixing clamp group 2 includes two fixing clamps 201. One end of the locking assembly 8 is slidably connected to the outer wall of the first movable clamp 301, and the other end is slidably connected to the outer wall of a fixing clamp 201 near the first movable clamp 301. The first hinge rod 602 is provided with a locking tongue 605. When the welding disc 601 is rotated to the working position through the first hinge rod 602, the locking assembly 8 is used to cooperate with the locking tongue 605 to fix or release the locking tongue 605. In this design, the welding assembly 6 includes a welding disc 601, a first hinge rod 602, and a second hinge rod 603 connected in sequence. The first hinge rod 602 is rotatably sleeved on the sliding sleeve 9 of the upper second support rod 7. One end of the second hinge rod 603 is rotatably sleeved on the end of the first hinge rod 602, while the middle part is rotatably sleeved on the sliding sleeve 9 of the lower second support rod 7. A handle is also provided on the welding disc 601. In this way, the entire welding assembly 6 can slide laterally as a whole. When it moves to the designated position, the operator can hold the handle to push the welding disc 601 down, so that the welding disc 601 enters the lower welding position. At this time, the locking tongue 605 also enters the position of the locking assembly 8 and is locked by the locking assembly 8. When it is necessary to move the welding disc 601 out of the work position, the locking assembly 8 is controlled to release the locking tongue 605. At this time, under the pushing force of the thrust telescopic rod 604, the welding disc 601 is automatically popped out. The thrust telescopic rod 604 can be a telescopic rod, similar to a damper, with a thrust spring inside.

[0073] In some embodiments, in order to achieve the engagement of the locking tongue 605, the engagement assembly 8 includes a back plate 801, and the second movable clamp 302 and an adjacent fixed clamp 201 are both provided with extension rods 807 on the outer side wall in the direction of the second support rod 7.

[0074] The back plate 801 is arranged along the length of the second support rod 7, and two first elongated holes 8011 are respectively provided at both ends of the back plate 801. Both first elongated holes 8011 are arranged along the length of the back plate 801. One end of each of the two extension rods 807 passes through the two first elongated holes 8011 and is connected to a limiting pad 802. The back plate 801 is hung on the two extension rods 807.

[0075] The upper side of the back plate 801 has a slot 8012 in the middle. The slot 8012 is adapted to the width of the first hinge rod 602 and is used to allow the first hinge rod 602 to enter.

[0076] Two grippers 803 are provided in the middle of the side of the back plate 801 away from the second support rod 7, and the upper ends of the two grippers 803 are directly opposite the slot 8012; the lower ends of the grippers 803 are hinged to the back plate 801, and the back plate 801 is also provided with an elastic drive component for driving the upper ends of the two grippers 803 to clamp towards each other or move away from each other; the locking tongue 605 is fixed to the lower side of the first hinge rod 602 and extends outward. When the first hinge rod 602 is engaged in the slot 8012, the locking tongue 605 is just engaged between the two grippers 803. In this design, the engaging assembly 8 includes a back plate 801, which is mounted on two extension rods 807. The two extension rods 807 pass through two first elongated holes 8011, and each extension rod 807 has a limiting washer 802 at its end. The diameter of the limiting washer 802 is larger than the width of the first elongated hole 8011, thus confining the back plate 801 within it. This prevents the back plate 801 from falling off while allowing the extension rods 807 to move along the direction of the first elongated hole 8011. Two grippers 803 are provided on the rear side of the center of the back plate 801. The two grippers 803 are elongated and have grooves at their upper ends, with the two grooves facing each other to form a clamping groove. The upper end face of the grippers 803 has a guide surface that slopes inward and downward to facilitate the entry of the locking tongue 605, which is an outwardly extending protrusion. When the operator presses down the welding plate 601, the periphery of the first hinge rod 602 can enter the slot 8012, while the locking tongue 605 squeezes the two grippers 803 and moves downward into the clamping groove. Then, the elastic drive component controls the two grippers 803 to reset.

[0077] In some embodiments, to achieve the linkage of the locking assembly 8, the welding disc 601, and the movable clamping assembly, so as to realize the automatic unlocking of the locking assembly 8 and the synchronous displacement of the welding disc 601, the elastic drive assembly includes two movable plates 804. Both movable plates 804 are parallel to the back plate 801 and are located on the side of the back plate 801 facing the second support rod 7. The movable plates 804 are provided with a plurality of second elongated holes 8041, and the back plate 801 is connected to the corresponding second elongated holes 8041 by a plurality of bolts.

[0078] The movable plate 804 also has a third elongated hole 8042. The second elongated hole 8041 and the third elongated hole 8042 are both arranged along the length direction of the first elongated hole 8011, and the third elongated hole 8042 is directly opposite the first elongated hole 8011 at the same position. The lower side of the adjacent ends of the two movable plates 804 are each provided with a downward protrusion, and a return spring 805 is connected between the two protrusions.

[0079] The lower end of the gripper 803 is provided with a first connector, which passes through the through hole on the back plate 801 and the elongated slot 8043 on the movable plate 804 in sequence. The elongated slot 8043 is arranged along the length direction of the first elongated hole 8011, and the first connector can slide on the elongated slot 8043. The middle part of the gripper 803 is provided with a second connector, which passes through the arc-shaped hole 8013 on the back plate 801 and the hinge hole on the movable plate 804 in sequence.

[0080] The movement of the two movable plates 804 toward each other or away from each other can be caused by the second connector to move the upper ends of the two grippers 803 toward each other or away from each other.

[0081] The elastic drive assembly also includes a pawl 806, the middle of which is rotatably sleeved on the extension rod 807, and the end of which is away from the other pawl 806 is an outwardly extending claw end, which can rotate downward under its own weight.

[0082] The lower side of the third elongated hole 8042 is provided with a toothed rack 8044. The claw end can extend into the tooth groove of the toothed rack 8044, and after extending into the tooth groove, the claw end can move towards the middle of the back plate 801.

[0083] The pawl 806 is located inside the third elongated hole 8042, and the width of the third elongated hole 8042 is less than the length of the pawl 806; when the movable plate 804 moves downward, it can squeeze the other end of the pawl 806, causing the pawl end to disengage from the rack 8044; and when the movable plate 804 moves upward, it can disengage from the other end of the pawl 806, causing the pawl end to engage with the rack 8044 under its own weight. In this design, two movable plates 804 are respectively hung on corresponding extension rods 807 through third elongated holes 8042 and are restricted by limiting washers 802 to prevent them from falling. The movable plates 804 are connected to the back plate 801 by bolts through several second elongated holes 8041 to achieve a small lateral displacement of the movable plates 804 relative to the back plate 801. The two movable plates 804 have elongated slots 8043 on their opposite end faces to allow the first connector to move laterally. The width of the arc-shaped hole 8013 on the back plate 801 is larger than the diameter of the second connector. Thus, when the latch 605 needs to be released, that is, when the two movable plates 804 are moved away from each other, the lower first connector remains stationary, and the elongated slot 8043 gradually slides out. The upper second connector makes a small arc-shaped movement on the arc-shaped hole 8013 of the back plate 801 to drive the two grippers 803 to rotate away from each other, thereby releasing the latch 605. Secondly, to drive the two movable plates 804, the elastic drive assembly also includes pawls 806. The ends of the two pawls 806 that are far apart from each other are the pawl ends, and the ends that are close together are the drive ends. When the movable plate 804 moves down, it can press down on the drive end of the other end of the pawl 806, so as to drive the pawl end of one end of the pawl 806 to rotate upward, thereby disengaging from the rack 8044. When the movable plate 804 moves up, it can release the pawl 806, so that the pawl end of the pawl 806 rotates downward and enters the rack 8044 under its own weight. At this time, the movable clamp group 3 can move forward. When moving backward, due to the limitation of the pawl 806, it can synchronously drive the movable plate 804 to move backward, thereby opening the two pawls 806 through the movable plate 804 to release the locking tongue 605 and pop out the welding plate 601.

[0084] How this solution works:

[0085] In the initial state, the two pipes are clamped by the movable clamp group 3 and the fixed clamp group 2 respectively, achieving initial clamping and positioning.

[0086] The operator then presses down the welding plate 601 by holding the handle, causing it to enter the lower heating position. At this time, the first hinge rod 602 enters the slot 8012, and the locking tongue 605, during the pressing process, squeezes the two grippers 803, causing them to separate and enter the clamping groove. Then, under the action of the return spring 805, the grippers return to their original position, clamping the locking tongue 605 and thus fixing the welding plate 601. During this process, the thrust extension component generates a continuous upward thrust on the first hinge rod 602, causing the locking tongue 605 to move the two grippers 803 upward. The grippers 803 then move the back plate 801 and the movable plate 804 upward simultaneously by a small amplitude. As the movable plate 804 is moved upward, it releases the upper end of the pawl 806, while the lower end of the pawl 806 enters the rack 8044 under its own weight.

[0087] After the welding disc 601 is fixed, it is necessary to control the two pipes to abut against both sides of the welding disc 601 respectively. At this time, the drive motor can be started, so that the drive motor drives the two first pulleys 505 to rotate, and drives the two threaded sleeves 501 in the first movable clamp 301 to rotate through the belt 506 respectively. The rotation of the threaded sleeves 501 on the screw can realize forward displacement, so as to synchronously drive the movable clamp group 3 to move towards the welding disc 601. During this movement, the pawl 806 pawl tip moves forward on the rack 8044 and continuously bounces up and down. When the pipe held by the movable clamp group 3 abuts against the welding disc 601, it can push the welding disc 601 to continue to move forward synchronously. Since the first hinge rod 602 is limited in the slot 8012, the welding disc 601 can also synchronously drive the back plate 801 and the movable plate 804 to move synchronously. At this time, the other pawl 806 behind also continuously bounces up and down on the rack 8044.

[0088] When both clamped pipes are in contact with both sides of the welding disc 601, the pipes are in position. The welding disc 601 is then activated to simultaneously heat the ends of the two pipes at high temperature, causing them to gradually absorb heat, melt, and soften.

[0089] After heating is complete, the pipe needs to be retracted, and the welding disc 601 needs to be ejected. The drive motor can be controlled to rotate in the opposite direction, causing the movable clamp assembly 3 to retract. During the retraction of the movable clamp assembly 3, because the pawl 806 is limited in the rack 8044 and the upper end of the pawl 806 is blocked, the retraction of the movable clamp assembly 3 and the pawl 806 will simultaneously cause the movable plate 804 at that location to retract. During this process, the pipe held by the movable clamp assembly 3 will move away from the welding disc 601 by a certain distance. The length is equal to the length of the second elongated hole 8041. Since the length of the second elongated hole 8041 is limited, when the movable plate 804 retracts to the limit position of the second elongated hole 8041, it will drive the back plate 801 to retract synchronously. Since the first hinge rod 602 is limited in the slot 8012, the retraction of the back plate 801 will drive the welding plate 601 and the entire welding assembly 6 to retract synchronously. The retraction of the welding assembly 6 will cause the pipe held by the fixed clamp group 2 to be separated from the welding plate 601 by a certain distance.

[0090] During the above process, due to the synchronous retraction of the back plate 801, when it retracts to a certain distance, the other movable plate 804 is limited by the second elongated hole 8041, which will cause the other movable plate 804 to tend to retract. However, at this time, the claw end of the other pawl 806 is stuck in the rack 8044, and the other movable plate 804 cannot be driven to retract. Therefore, a relative displacement occurs between the movable plate 804 and the back plate 801. That is, relative to the back plate 801, the first movable plate 804 retracts, and the second movable plate 804 moves forward relative to the back plate 801. Therefore, at this time, the two movable plates 804 are driven to move away from each other. The moving away of the movable plates 804 can drive the two grippers 803 to separate through the second connector, thereby releasing the locking tongue 605 on the lower side of the first hinge rod 602. The first hinge rod 602 will rotate outward under the continuous thrust of the thrust telescopic rod 604 to pop out the welding plate 601.

[0091] After the welding plate 601 is ejected, the drive motor is controlled to rotate forward again, so that the movable clamp group 3 moves forward again towards the fixed clamp group 2 until the heated ends of the two pipes are joined together and a certain pressure is maintained, thereby completing the welding connection between the two pipes. After the pipes cool down, the movable clamp group 3 is removed and the welded pipes are taken out.

[0092] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fully automatic hot-melt welder, characterized in that, include: The frame (1) has a fixed clamp group (2) and a movable clamp group (3) on its two sides. The fixed clamp group (2) and the movable clamp group (3) are both mounted on two first support rods (4) of the frame (1). The fixed clamp group (2) and the first support rod (4) are fixedly connected, and the movable clamp group (3) and the first support rod (4) are movably connected and can move along the length of the first support rod (4). The servo motor (5) and the movable clamp group (3) include a first movable clamp (301) and a second movable clamp (302). The first movable clamp (301) and the second movable clamp (302) are connected to each other and can move synchronously. The servo motor (5) is used to drive the movable clamp group (3) to move along the length direction of the first support rod (4). It also includes a welding assembly (6), and the frame (1) is provided with two upper and lower second support rods (7) on the rear side, and each of the two second support rods (7) is fitted with a sliding sleeve (9). The welding assembly (6) includes a welding disc (601), which is hinged to a first hinge rod (602) and a sliding sleeve (9) on the upper second support rod (7). The hinge end of the first hinge rod (602) is hinged to a second hinge rod (603), and the middle part of the second hinge rod (603) is hinged to the sliding sleeve (9) on the lower second support rod (7). A thrust telescopic rod (604) is hinged to the end of the second hinge rod (603) away from the first hinge rod (602). The output end of the thrust telescopic rod (604) is connected to the first hinge rod (602) and always applies a thrust to the first hinge rod (602). It also includes a locking assembly (8), the fixing clamp group (2) includes two fixing clamps (201); one end of the locking assembly (8) is slidably connected to the outer wall of the first movable clamp (301), and the other end is slidably connected to the outer wall of a fixing clamp (201) near the first movable clamp (301); the first hinge rod (602) is provided with a locking tongue (605), when the welding disc (601) is rotated to the working position through the first hinge rod (602), the locking assembly (8) is used to cooperate with the locking tongue (605) to fix or release the locking tongue (605). The engaging assembly (8) includes a back plate (801), and the second movable clamp (302) and an adjacent fixed clamp (201) are each provided with an extension rod (807) on the outer side wall in the direction of the second support rod (7). The back plate (801) is arranged along the length of the second support rod (7), and two first elongated holes (8011) are respectively provided at both ends of the back plate (801). Both first elongated holes (8011) are arranged along the length of the back plate (801). One end of each of the two extension rods (807) passes through the two first elongated holes (8011) and is connected to a limiting gasket (802). The back plate (801) is hung on the two extension rods (807). The back plate (801) has a slot (8012) in the middle of the upper side, the slot (8012) is adapted to the width of the first hinge rod (602) and is used to allow the first hinge rod (602) to enter; Two grippers (803) are provided in the middle of the side of the back plate (801) away from the second support rod (7), and the upper ends of the two grippers (803) are directly opposite the slot (8012); the lower ends of the grippers (803) are hinged to the back plate (801), and the back plate (801) is also provided with an elastic drive assembly for driving the upper ends of the two grippers (803) to clamp towards each other or move away from each other; the locking tongue (605) is fixed to the lower side of the first hinge rod (602) and extends outward. When the first hinge rod (602) is inserted into the slot (8012), the locking tongue (605) is just inserted between the two grippers (803); The elastic drive assembly includes two movable plates (804), both of which are parallel to the back plate (801) and are located on the side of the back plate (801) facing the second support rod (7); the movable plates (804) are provided with a plurality of second elongated holes (8041), and the back plate (801) is connected to the corresponding second elongated holes (8041) by a plurality of bolts; The movable plate (804) also has a third elongated hole (8042). The second elongated hole (8041) and the third elongated hole (8042) are both arranged along the length direction of the first elongated hole (8011), and the third elongated hole (8042) is directly opposite the first elongated hole (8011) at the same position. The lower side of the adjacent ends of the two movable plates (804) has a downward protrusion, and a return spring (805) is connected between the two protrusions. The lower end of the gripper (803) is provided with a first connector, which passes through the through hole on the back plate (801) and the elongated slot (8043) on the movable plate (804) in sequence. The elongated slot (8043) is arranged along the length direction of the first elongated hole (8011), and the first connector can slide on the elongated slot (8043). The middle part of the gripper (803) is provided with a second connector, which passes through the arc-shaped hole (8013) on the back plate (801) and the hinge hole on the movable plate (804) in sequence. The two movable plates (804) moving closer or further apart can cause the upper ends of the two grippers (803) to move closer or further apart through the second connector; The elastic drive assembly also includes a pawl (806), the middle of which is rotatably sleeved on the extension rod, and the end of which is away from the other pawl (806) is an outwardly extending pawl end, which can rotate downward under its own weight. The lower side of the third elongated hole (8042) is provided with a toothed rack (8044). The claw end can extend into the tooth groove of the toothed rack (8044), and after extending into the tooth groove, the claw end can move towards the middle of the back plate (801). The pawl (806) is located inside the third elongated hole (8042), and the width of the third elongated hole (8042) is less than the length of the pawl (806); when the movable plate (804) moves downward, it can squeeze the other end of the pawl (806), causing the pawl end to disengage from the rack (8044); and when the movable plate (804) moves upward, it can disengage from the other end of the pawl (806), causing the pawl end to engage with the rack (8044) under its own weight.

2. A fully automatic hot wedge bonding machine according to claim 1, characterized in that The servo motor (5) is a rotary motor, and the first support rod (4) includes a threaded section and a straight section; A threaded sleeve (501) is provided between the installation space of the first movable clamp (301) and the threaded section, and a sliding sleeve (502) is provided between the installation space of the second movable clamp (302) and the straight section; the inner side of the threaded sleeve (501) is threaded and threadedly fitted onto the threaded section, and the outer side of the threaded sleeve (501) and the installation space of the first movable clamp (301) are rotatably connected by a first bearing (503); the inner side of the sliding sleeve (502) is slidably fitted onto the straight section, and the outer side of the sliding sleeve (502) is fixedly connected to the second movable clamp (302); The rotary motor is fixed on the first movable clamp (301) and is used to drive the threaded sleeve (501) to rotate.

3. A fully automatic hot wedge bonding machine according to claim 2, characterized in that The first movable clamp (301) has three mounting spaces evenly distributed on the circumferential sidewall of its housing. Two of the mounting spaces are connected by threaded sleeves (501) and threaded sections of two first support rods (4), respectively. The other mounting space is provided with two meshing transmission teeth (504). The two transmission teeth (504) are coaxially connected with first pulleys (505), and the rotary motor is used to drive one of the transmission teeth (504) to rotate. The outer sides of both threaded sleeves (501) are fixedly fitted with second pulleys (511), and the first pulley (505) and the second pulley (511) located on the same side are connected by a belt (506).

4. A fully automatic hot wedge bonding machine according to claim 3, characterized in that A tensioning unit is provided between the opposing surfaces of the two belts (506). The tensioning unit includes a fixed rod (507). The fixed rod (507) is located inside the housing of the first movable clamp (301) and is placed horizontally between the two belts (506). A threaded sleeve (508) is connected to both ends of the fixed rod (507). One end of the threaded sleeve (508) is threaded onto the end of the fixed rod (507) and placed in the horizontal placement groove inside the first movable clamp (301). The other end of the threaded sleeve (508) holds a third pulley (509). The third pulley (509) can rotate freely and abuts against the opposite belt (506).

5. A fully automatic hot wedge bonding machine according to claim 3, wherein The threaded sleeve (501) includes a large diameter section and a small diameter section in sequence in the direction of the second movable clamp (302). The second pulley (511) is fixedly sleeved on the small diameter section, and a first bearing (503) is provided on both sides of the second pulley (511). The first bearing (503) includes an inner ring and an outer ring arranged coaxially. The inner ring is connected to the threaded sleeve (501), and the outer ring is connected to the side wall of the mounting space. A second bearing (510) is provided between the end of the threaded sleeve (501) facing the second movable clamp (302) and the mounting space. The second bearing (510) includes a left ring and a right ring. The right ring is connected to the end of the threaded sleeve (501), and the left ring is connected to the side wall of the mounting space.

6. A fully automatic hot wedge bonding machine according to claim 2, wherein A protective sleeve (303) is connected between the first movable clamp (301) and the second movable clamp (302). The protective sleeve (303) is fitted on the first support rod (4) and has a circumferential gap between it and the first support rod (4).

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