Welding device with temperature control function for medical anastomat

Abstract

The invention discloses a welding device with a temperature control function for a medical anastomat, and relates to the technical field of anastomat welding devices. Comprising a base, a machine box, an electric door, a welding assembly, a discharging opening and a precise control device, during fixing, a clamping sliding block is used for driving a pre-tightening turnover device to conduct secondary displacement, a fixing pin penetrates into a rotating hole in the end of an upper cover, and positioning of the end of the upper cover is completed; and then the pre-tightening ring is driven to rotate and extrude the pre-tightening spring by utilizing the displacement of the propelling end, so that the pre-tightening spring applies pre-tightening force to the fixed head, the fixed head generates torque, and the upper cover is tightly attached to the nail propping seat under the action of the torque, so that the effect of fixedly stacking the upper cover and the nail propping seat is achieved. And by utilizing resilience force of the pre-tightening spring in a pre-tightening state, the fixing head drives the finished welding part to deflect to the discharging opening, so that the effect of converting pre-tightening force into rotation for auxiliary discharging is achieved. And the damping effect of the second extrusion sheet is utilized, so that the pre-tightening spring rebounds slowly, and collision of the welding part caused by too fast deflection of the fixing head is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of stapler welding devices, in particular to a medical stapler welding device with a temperature control function. Background Art

[0002] Medical staplers replace traditional manual suturing with mechanized stapling technology. They are primarily used for the rapid connection and repair of gastrointestinal, vascular, and lung tissues or organs. This not only significantly improves surgical efficiency but also effectively reduces complications such as postoperative leakage and infection. During the stapler production process, the anvil needs to be welded to the upper cover of the stapler's clamp. The upper cover typically consists of a U-shaped strip and an end cap. The anvil is welded to the U-shaped strip, creating a U-shaped weld. Turning holes are provided on both sides of the end cap to allow the upper cover to be rotated and mounted on the clamp head.

[0003] However, the current market lacks fully automatic high-precision welding equipment specifically for welding the stapler anvil and the upper cover. Many existing stapler manufacturers still rely on manual welding. Even if there are some automatic welding equipment, the anvil and the upper cover are still fixed by manual clamping. This method is not only inefficient, but also the accuracy depends on the operator's experience and skills, which ultimately leads to uneven quality of the welded parts produced. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for a medical anastomosis device with a temperature control function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a welding device for a medical anastomosis device with a temperature control function, comprising a base, a chassis installed on the base, a precision control device slidably installed on the base, a feeding port provided on the base, a welding assembly provided on the base, and an electric door provided on the chassis; the precision control device comprises an electric sliding support, the electric sliding support is slidably installed on the base, a pintle roller assembly is rotatably installed on the electric sliding support, a locking assembly is symmetrically installed on the electric sliding support, and an upper cover fixing device is slidably installed on the electric sliding support.

[0006] The chassis houses a control system that controls the entire welding apparatus. The welding assembly consists of a robotic arm and a welding gun. The robotic arm adjusts the gun's angle and drives it for high-precision movement and welding. The gun is equipped with a temperature control device to manage the welding temperature. The motorized sliding support slides along a track on the base. A loading device is connected to the chassis to place the anvil and cover onto the precision control device.

[0007] During machining, the control system opens the electric door, controls the electric sliding support to slide out, and uses the external loading device to place the anvil on the bottom roller, engaging the anvil's nail groove with the limit teeth. The control system then activates the electric telescopic rods, and the output shafts on both sides of the electric telescopic rods drive the locking plates to lock the rotating shaft. The limit teeth restrict the anvil from moving in the same plane. Afterwards, the loading device overlaps the U-shaped strip of the upper cover on the anvil and places the upper cover end on the bracket, completing the loading process.

[0008] Furthermore, the upper cover fixing device includes an electric slider, on which a clamping slider is symmetrically and slidingly installed, a rack is installed at the bottom end of the electric slider, the rack is slidably connected to the electric slider, a servo motor is installed in the electric slider, a gear is installed on the output shaft of the servo motor, the gear and the rack are meshed for transmission, and a pre-tightening flipping device is installed on the clamping slider.

[0009] The electric slider can slide along the track on the electric sliding support after being powered.

[0010] After loading is completed, the control system starts the servo motor, and the output shaft of the servo motor drives the gear to rotate a preset number of circles. The gear drives the racks on both sides to slide on the electric slider, and the racks drive the two clamping sliders to slide closer. The clamping sliders drive the pre-tightening flipping device to move closer. During the approach process, the fixed head on the pre-tightening flipping device pushes the end of the upper cover to move to the middle until the fixed head contacts both sides of the upper cover end. The upper cover is centered under the push of the fixed heads on both sides.

[0011] Furthermore, the pre-tightening flipping device includes a propulsion end, which is installed on the clamping slider, a sliding ring is slidably installed on the propulsion end, a clamping spring is installed between the sliding ring and the propulsion ring, a pre-tightening ring is movably installed on the propulsion end, the pre-tightening ring is rotatably connected to the sliding ring, a fixed head is rotatably installed at one end of the sliding ring, the fixed head is rotatably connected to the pre-tightening ring, a pre-tightening spring is installed between the pre-tightening ring and the fixed head, a bracket is installed at the bottom end of the fixed head, and an annular gasket is installed on the fixed head.

[0012] The annular gasket is used to protect the end of the upper cover to prevent clamping marks from appearing on the end of the upper cover. It also increases the friction between the fixed head and the end of the upper cover to prevent sliding between the fixed head and the end of the upper cover during clamping.

[0013] After the upper cover is centered, the control system further starts the servo motor, and the servo motor drives the gear to rotate, and the gear further drives the clamping slider closer through the toothed belt. Since the fixed head is against the two sides of the end of the upper cover, the fixed head cannot move closer. As the clamping slider drives the pushing end to move further, the pushing head pushes the fixed pin out of the fixed head and passes through the rotating hole of the end of the upper cover, completing the positioning of the end of the upper cover; during the movement of the fixed pin, the transmission column on it squeezes the pre-tightening ring through the inclined groove, driving the compressed pre-tightening ring to rotate around its own center axis, the first extrusion plate rotates with the pre-tightening ring and compresses the pre-tightening spring. After compression, the pre-tightening spring transmits the elastic force to the second extrusion plate, and the second extrusion plate drives the fixed head to generate a torque rotating around the center axis of the fixed pin, so that the fixed head has a tendency to drive the upper cover to rotate around the fixed pin. Under the action of the torque, the upper cover and the anvil seat are tightly fitted, achieving the effect of fixed stacking of the upper cover and the anvil seat, preventing the upper cover and the anvil seat from dislocating during welding, affecting the welding accuracy.

[0014] Furthermore, the propulsion end includes a push head, which is installed on the clamping slider, a fixing pin is installed at one end of the push head, a positioning rod is symmetrically installed at the other end of the push head, a transmission column is symmetrically installed on the fixing pin, the positioning rod is slidably connected to the sliding ring, the fixing pin is movably connected to the pre-tightening ring, the transmission column is slidably connected to the pre-tightening ring, and the fixing pin is slidably connected to the sliding ring.

[0015] Furthermore, a first rotating ring is provided on the sliding ring, which is rotatably connected to the fixed head. A second rotating groove is provided on the sliding ring, which is rotatably connected to the preload ring through the second rotating groove. A slide is symmetrically provided in the sliding ring, the positioning rod is slidably connected to the slide, and a second damping block is provided in the slide.

[0016] The second damping block is a cylindrical structure, half embedded in the slideway. When the end of the positioning rod retracts in the slideway, the second damping blocks on both sides will produce slight friction with the end of the positioning rod. This friction slows down the relative movement between the positioning rod and the sliding ring, achieving a damping effect.

[0017] Furthermore, a first extrusion plate is symmetrically provided on the preload ring, the first extrusion plate is connected to one end of the preload spring, an inclined groove is provided on the preload ring, the transmission column is slidably installed in the inclined groove, and a second rotating ring is provided at one end of the preload ring, and the second rotating ring is rotatably installed in the second rotating groove.

[0018] Furthermore, a first rotating groove is provided on the fixed head, the first rotating ring is rotatably installed in the first rotating groove, a spring groove is provided on the fixed head, the first extrusion piece is located in the spring groove, and a plurality of first damping blocks are symmetrically provided in the spring groove. The first damping block is cylindrical, and a second extrusion piece is symmetrically installed in the spring groove, and the other end of the preloaded spring is connected to the second extrusion piece.

[0019] The first damping block is a cylindrical structure, half-embedded in the spring slot. When the compressed preload spring rebounds, the first damping blocks on both sides will produce slight friction with the preload spring, slowing the preload spring's rebound speed through friction, causing the preload spring to rebound slowly, achieving a damping effect.

[0020] After welding is completed, the control system causes the electric telescopic rod to drive the locking plate to retract, unlocking the rotating shaft, and then opening the electric slider. The electric slider drives the upper cover fixing device fixed with the upper cover to move, and the upper cover drives the dowel seat welded thereon to slide on the bottom roller. The nail groove on the dowel seat drives the limiting teeth to rotate, and the limiting teeth drive the bottom roller to rotate. The bottom roller and the limiting teeth rotate to assist in unloading, preventing the dowel seat from sliding and scratching directly on the surface of the limit block, thereby preventing the dowel seat from being scratched.

[0021] When the anvil seat and the upper cover completely slide off the bottom roller, the bottom of the anvil seat loses support, and the pre-tightening spring begins to rebound slowly under the action of the first damping block. The pre-tightening spring drives the fixed head to rotate slowly through the second extrusion plate, and the fixed head drives the anvil seat and the upper cover to deflect downward around the fixed pin to the discharge chute. After that, the control system turns on the servo motor, so that the clamping slider drives the pre-tightening flipping device to loosen the fixation of the anvil seat and the upper cover. The anvil seat and the upper cover enter the discharge port from the discharge chute, and slide along the discharge channel in the base to the finished product collection area, thereby completing the discharge of the finished welded parts.

[0022] After the preload flip device is released, the internal clamping spring rebounds, pushing the sliding ring to slide along the positioning rod. Under the action of the second damping block, the sliding ring slides slowly, pushing the preload ring forward during the sliding process. Under the action of the transmission column and the inclined groove, the preload ring rotates while moving forward. The first extrusion piece on the preload ring drives the fixed head to rotate and reset through the preload spring. When the clamping spring fully rebounds, the preload flip device is fully reset. This completes the entire welding process. This cycle realizes fully automatic welding of the upper cover and the nail seat.

[0023] Furthermore, a material discharge trough is provided on the electric sliding support, a mounting seat is provided on the electric sliding support, a nail support roller assembly is rotatably mounted on the mounting seat, and a locking assembly is symmetrically mounted on the mounting seat.

[0024] After the fixed stacking is completed, the control system controls the electric sliding support to slide into the chassis until the discharge trough on the electric sliding support is located above the discharge port. The control system starts the welding assembly, and the welding assembly welds the U-shaped seam between the upper cover and the nail seat.

[0025] Furthermore, the anvil seat roller assembly includes several rotating shafts, which are rotatably mounted on the mounting seat, and bottom rollers are mounted on the rotating shafts, and the bottom rollers are provided with several limiting teeth. The end of the rotating shaft adopts a rough surface design, and several transmission teeth are provided on the rotating shaft. A transmission belt is mounted on the rotating shaft, and the transmission belt is engaged with the transmission teeth for transmission, and the shape of the limiting teeth matches the shape of the anvil seat nail groove.

[0026] The limiting teeth can be engaged with the nail groove of the nail seat.

[0027] Furthermore, the locking assembly includes a locking shell, which is mounted on a mounting seat, an electric telescopic rod is mounted on the locking shell, a locking plate is mounted on the output shaft of the electric telescopic rod, and a side of the locking plate close to the rotating shaft adopts a rough surface design.

[0028] The rough surface design of the locking plate and the end of the rotating shaft generates a higher friction force when the two are in contact, which makes the rotating shaft unable to rotate under the action of the friction force, thereby achieving the purpose of locking the bottom roller.

[0029] Compared with the prior art, the present invention has the following beneficial effects: 1. The gear and rack work together to drive the clamping slider to drive the preload flipping device to push the upper cover end to achieve centering of the upper cover. The matching shape of the stopper teeth and the nail groove of the nail seat allows the stopper teeth to fit into the nail groove of the nail seat. When the bottom roller is locked, the plane displacement of the nail seat is prevented. The rough surface design of the locking plate and the end of the shaft creates high friction when they fit together, preventing the shaft from rotating and achieving the purpose of locking the bottom roller.

[0030] 2. When fixing, use the clamping slider to drive the pre-tightening flip device to perform a secondary displacement, so that the fixing pin passes through the rotating hole of the upper cover end to complete the positioning of the upper cover end; then use the displacement of the pushing end to drive the pre-tightening ring to rotate and squeeze the pre-tightening spring, so that the pre-tightening spring applies a pre-tightening force to the fixed head, allowing the fixed head to generate torque. Under the action of the torque, the upper cover and the anvil seat fit tightly, achieving the effect of fixed stacking of the upper cover and the anvil seat, improving stability, and preventing the upper cover and the anvil seat from dislocating during welding, which affects the welding accuracy.

[0031] 3. During the blanking process, the bottom roller is unlocked, and the bottom roller and the limit gear rotate to assist in blanking, so as to prevent the anvil from sliding and scratching directly on the surface of the limit block, thereby preventing the anvil from being scratched, and achieving the purpose of blanking protection for pre-tightened welded parts.

[0032] 4. The preload spring's rebound force in the preloaded state allows the fixed head to drive the finished weldment toward the unloading port, converting the preload force into rotation to assist in unloading. The damping effect of the second extrusion plate causes the preload spring to rebound slowly, preventing the fixed head from deflecting too quickly and causing collisions with the weldment, thereby improving safety.

[0033] 5. The second damping block is used to slow down the rebound speed of the fixed head driven by the sliding ring when the clamping slider drives the preload turning device to move, so that the fixed head can immediately break contact with the finished welded part, allowing the welded part to fall off immediately and complete rapid unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is an overall three-dimensional diagram of the welding device of the present invention; Figure 2 is a perspective view of the welding device of the present invention; Figure 3 is a three-dimensional diagram of the precise control device of the present invention; Figure 4 The three-dimensional structure of the upper cover fixing device of the present invention Figure 1 ; Figure 5 The three-dimensional structure of the upper cover fixing device of the present invention Figure 2 ; Figure 6 The three-dimensional pre-tightening flip device of the present invention Figure 1 ; Figure 7 The three-dimensional pre-tightening flip device of the present invention Figure 2 ; Figure 8 A perspective view of the propulsion end of the present invention; Figure 9 A perspective view of a sliding ring according to the present invention; Figure 10 A three-dimensional diagram of the preload ring of the present invention; Figure 11 is a three-dimensional diagram of the fixing head of the present invention; Figure 12 For the present invention Figure 11 A partial enlarged view of area A in the middle; Figure 13 A perspective view of the electric sliding support of the present invention; Figure 14 is a perspective view of the locking assembly of the present invention; Figure 15 It is a three-dimensional view of the anvil roller assembly of the present invention.

[0035] In the figure: 1. Base; 2. Chassis; 3. Electric door; 4. Welding assembly; 5. Feeding port; 6. Precision control device; 61. Electric sliding support; 62. Upper cover fixing device; 63. Anchor roller assembly; 64. Locking assembly; 621. Electric slider; 622. Servo motor; 623. Clamping slider; 624. Gear; 625. Rack; 8. Preload turning device; 81. Push end; 82. Clamping spring; 83. Sliding ring; 84. Fixed head; 85. Ring gasket; 86. Bracket; 87. Preload ring; 88. Preload spring; 811. Push head; 812. Positioning rod ;813, fixing pin;814, transmission column;831, first rotating ring;832, second rotating groove;833, slideway;834, second damping block;871, first extrusion plate;872, inclined groove;873, second rotating ring;841, first rotating groove;842, spring groove;843, second extrusion plate;844, first damping block;611, discharge chute;612, mounting seat;641, locking shell;642, electric telescopic rod;643, locking plate;631, bottom roller;632, rotating shaft;633, transmission tooth;634, transmission belt;635, limit tooth. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] like Figures 1-15 As shown, the present invention provides a technical solution for a welding device for a medical anastomosis device with a temperature control function: it includes a base 1, a chassis 2 is installed on the base 1, a precision control device 6 is slidably installed on the base 1, a discharge port 5 is provided on the base 1, a welding assembly 4 is provided on the base 1, and an electric door 3 is provided on the chassis 2; the precision control device 6 includes an electric sliding support 61, the electric sliding support 61 is slidably installed on the base 1, a pin support roller assembly 63 is rotatably installed on the electric sliding support 61, a locking assembly 64 is symmetrically installed on the electric sliding support 61, and an upper cover fixing device 62 is slidably installed on the electric sliding support 61.

[0038] The chassis 2 houses a control system for controlling the entire welding apparatus. The welding assembly 4 consists of a robotic arm and a welding gun. The robotic arm adjusts the gun's angle and drives it for high-precision movement and welding. The gun is equipped with a temperature control device to manage the welding temperature. An electrically driven sliding support 61 slides along a track on the base 1. A loading device is externally connected to the chassis 2, which is used to place the anvil and upper cover onto the precision control device 6.

[0039] A material discharge chute 611 is provided on the electric sliding support 61 , a mounting seat 612 is provided on the electric sliding support 61 , a dowel roller assembly 63 is rotatably mounted on the mounting seat 612 , and a locking assembly 64 is symmetrically mounted on the mounting seat 612 .

[0040] The anvil support roller assembly 63 includes several rotating shafts 632, which are rotatably mounted on the mounting base 612. A bottom support roller 631 is mounted on the rotating shaft 632, and the bottom support roller 631 is provided with several limiting teeth 635. The end of the rotating shaft 632 has a roughened surface design. The rotating shaft 632 is provided with several transmission teeth 633, and a transmission belt 634 is mounted on the rotating shaft 632. The transmission belt 634 engages with the transmission teeth 633 for transmission. The limiting teeth 635 are shaped to match the shape of the anvil nail groove. The limiting teeth 635 can be embedded in the nail groove of the anvil.

[0041] The locking assembly 64 includes a locking shell 641, which is mounted on the mounting seat 612. An electric telescopic rod 642 is mounted on the locking shell 641, and a locking plate 643 is mounted on the output shaft of the electric telescopic rod 642. The side of the locking plate 643 close to the rotating shaft 632 adopts a rough surface design.

[0042] The rough surface design of the locking plate 643 and the end of the rotating shaft 632 generates a high friction force when the two are in contact, and the rotating shaft 632 cannot rotate under the action of the friction force, thereby achieving the purpose of locking the bottom roller 631.

[0043] The upper cover fixing device 62 includes an electric slider 621, on which a clamping slider 623 is symmetrically and slidably installed. A rack 625 is installed at the bottom end of the electric slider 621, and the rack 625 is slidably connected to the electric slider 621. A servo motor 622 is installed in the electric slider 621, and a gear 624 is installed on the output shaft of the servo motor 622. The gear 624 is engaged with the rack 625 for transmission, and a pre-tightening flipping device 8 is installed on the clamping slider 623.

[0044] The electric slider 621 can slide along the track on the electric sliding support 61 after being powered.

[0045] The pre-tightening flipping device 8 includes a propulsion end 81, which is installed on the clamping slider 623. A sliding ring 83 is slidably installed on the propulsion end 81, and a clamping spring 82 is installed between the sliding ring 83 and the propulsion ring. A pre-tightening ring 87 is movably installed on the propulsion end 81, and the pre-tightening ring 87 is rotatably connected to the sliding ring 83. A fixed head 84 is rotatably installed at one end of the sliding ring 83, and the fixed head 84 is rotatably connected to the pre-tightening ring 87. A pre-tightening spring 88 is installed between the pre-tightening ring 87 and the fixed head 84. A bracket 86 is installed at the bottom end of the fixed head 84, and an annular gasket 85 is installed on the fixed head 84.

[0046] The annular gasket 85 is used to protect the end of the upper cover to prevent clamping marks from appearing on the end of the upper cover. It also increases the friction between the fixed head 84 and the end of the upper cover to prevent sliding between the fixed head 84 and the end of the upper cover during clamping.

[0047] The pushing end 81 includes a pushing head 811, which is installed on the clamping slider 623. A fixing pin 813 is installed at one end of the pushing head 811, and a positioning rod 812 is symmetrically installed at one end of the pushing head 811. A transmission column 814 is symmetrically installed on the fixing pin 813. The positioning rod 812 is slidably connected to the sliding ring 83, the fixing pin 813 is movably connected to the pre-tightening ring 87, the transmission column 814 is slidably connected to the pre-tightening ring 87, and the fixing pin 813 is slidably connected to the sliding ring 83.

[0048] The sliding ring 83 is provided with a first rotating ring 831, which is rotatably connected to the fixed head 84. The sliding ring 83 is provided with a second rotating groove 832, which is rotatably connected to the pre-tightening ring 87 through the second rotating groove 832. A slideway 833 is symmetrically provided in the sliding ring 83, and the positioning rod 812 is slidably connected to the slideway 833. A second damping block 834 is provided in the slideway 833.

[0049] The second damping block 834 is cylindrical and semi-embedded in the slideway 833. When the end of the positioning rod 812 retracts in the slideway 833, the second damping blocks 834 on both sides will produce slight friction with the end of the positioning rod 812, and the friction force will slow down the relative movement speed between the positioning rod 812 and the sliding ring 83, thus achieving a damping effect.

[0050] A first extrusion piece 871 is symmetrically provided on the pre-tightening ring 87, and the first extrusion piece 871 is connected to one end of the pre-tightening spring 88. An inclined groove 872 is provided on the pre-tightening ring 87, and the transmission column 814 is slidably installed in the inclined groove 872. A second rotating ring 873 is provided at one end of the pre-tightening ring 87, and the second rotating ring 873 is rotatably installed in the second rotating groove 832.

[0051] A first rotating groove 841 is provided on the fixed head 84, and the first rotating ring 831 is rotatably installed in the first rotating groove 841. A spring groove 842 is provided on the fixed head 84, and the first extrusion piece 871 is located in the spring groove 842. A plurality of first damping blocks 844 are symmetrically provided in the spring groove 842. The first damping blocks 844 are cylindrical. Second extrusion pieces 843 are symmetrically installed in the spring groove 842, and the other end of the pre-tightening spring 88 is connected to the second extrusion piece 843.

[0052] The first damping block 844 is cylindrical and half-embedded in the spring slot 842. When the compressed preload spring 88 rebounds, the first damping blocks 844 on both sides will produce slight friction with the preload spring 88, slowing down the rebound speed of the preload spring 88 through friction, causing the preload spring 88 to rebound slowly, achieving a damping effect.

[0053] The present invention operates as follows: During machining, the control system activates the electric door 3, controls the electric sliding support 61 to slide out, and uses the external loading device to place the anvil on the bottom roller 631, engaging the anvil's nail groove with the limiting teeth 635. The control system then activates the electric telescopic rods 642. The output shafts of the two electric telescopic rods 642 drive the locking plates 643 to lock the rotating shaft 632. The anvil is restrained by the limiting teeth 635 and cannot move in a plane. The loading device then overlaps the U-shaped strip of the upper cover on the anvil and places the upper cover end on the bracket 86, completing the loading process.

[0054] After the loading is completed, the control system starts the servo motor 622, and the output shaft of the servo motor 622 drives the gear 624 to rotate a preset number of circles. The gear 624 drives the racks 625 on both sides to slide on the electric slider 621, and the racks 625 respectively drive the two clamping sliders 623 to slide closer, and the clamping sliders 623 drive the pre-tightening flipping device 8 to move closer. During the approach process, the fixed head 84 on the pre-tightening flipping device 8 pushes the end of the upper cover to move toward the middle until the fixed head 84 contacts both sides of the upper cover end, and the upper cover is centered under the push of the fixed heads 84 on both sides.

[0055] After the upper cover is centered, the control system further starts the servo motor 622, and the servo motor 622 drives the gear 624 to rotate. The gear 624 further drives the clamping slider 623 to move closer through the toothed belt. Since the fixed head 84 is against both sides of the end of the upper cover, the fixed head 84 cannot move closer. As the clamping slider 623 drives the pushing end 81 to move further, the pushing head 811 pushes the fixing pin 813 out of the fixing head 84 and into the rotating hole of the upper cover end, completing the positioning of the upper cover end; during the movement of the fixing pin 813, the transmission column 814 on it squeezes the pre-tightening ring through the inclined groove 872 87, drives the compressed pre-tightening ring 87 to rotate around its own central axis, the first extrusion piece 871 rotates with the pre-tightening ring 87 and compresses the pre-tightening spring 88, and the pre-tightening spring 88 is compressed and transmits the elastic force to the second extrusion piece 843, and the second extrusion piece 843 drives the fixed head 84 to generate a torque rotating around the central axis of the fixed pin 813, so that the fixed head 84 has a tendency to drive the upper cover to rotate around the fixed pin 813. Under the action of the torque, the upper cover and the anvil seat are tightly fitted, so as to achieve the effect of fixed stacking of the upper cover and the anvil seat, and prevent the upper cover and the anvil seat from shifting during welding, which affects the welding accuracy.

[0056] After the fixed stacking is completed, the control system controls the electric sliding support 61 to slide into the chassis 2 until the discharge trough 611 on the electric sliding support 61 is located above the discharge port 5, and the control system starts the welding assembly 4, and the welding assembly 4 welds the U-shaped seam between the upper cover and the nail seat.

[0057] After welding is completed, the control system causes the electric telescopic rod 642 to drive the locking plate 643 to retract, unlocking the rotating shaft 632, and then opening the electric slider 621. The electric slider 621 drives the upper cover fixing device 62 fixed with the upper cover to move, and the upper cover drives the anvil welded thereon to slide on the bottom roller 631. The nail groove on the anvil drives the limiting teeth 635 to rotate, and the limiting teeth 635 drives the bottom roller 631 to rotate. The bottom roller 631 and the limiting teeth 635 rotate to assist in unloading, thereby preventing the anvil from sliding and scratching directly on the surface of the limiting block, thereby preventing the anvil from being scratched.

[0058] When the anvil and the upper cover completely slide off the bottom roller 631, the bottom of the anvil loses support, and the pre-tightening spring 88 begins to rebound slowly under the action of the first damping block 844. The pre-tightening spring 88 drives the fixed head 84 to rotate slowly through the second extrusion plate 843, and the fixed head 84 drives the anvil and the upper cover to deflect downward around the fixed pin 813 to the discharge chute 611. After that, the control system turns on the servo motor 622, so that the clamping slider 623 drives the pre-tightening flipping device 8 to loosen the fixation of the anvil and the upper cover. The anvil and the upper cover enter the discharge port 5 from the discharge chute 611, and slide along the discharge channel in the base 1 to the finished product collection area, thereby completing the discharge of the finished welded parts.

[0059] After the preload flip device 8 is released, the internal clamping spring 82 rebounds, pushing the sliding ring 83 to slide along the positioning rod 812. Under the action of the second damping block 834, the sliding ring 83 slowly slides. During the sliding process, the sliding ring 83 pushes the preload ring 87 forward. Under the action of the transmission column 814 and the inclined groove 872, the preload ring 87 rotates while moving forward. The first extrusion piece 871 on the preload ring 87 drives the fixed head 84 to rotate and reset through the preload spring 88. When the clamping spring 82 fully rebounds, the preload flip device 8 is fully reset. This completes the entire welding process. This cycle realizes fully automatic welding of the upper cover and the anvil.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A welding device for a medical stapler with a temperature control function, characterized in that: The welding device comprises a base (1), a chassis (2) is mounted on the base (1), a precision control device (6) is slidably mounted on the base (1), a feed port (5) is provided on the base (1), a welding assembly (4) is provided on the base (1), and an electric door (3) is provided on the chassis (2); the precision control device (6) comprises an electric sliding support (61), the electric sliding support (61) is slidably mounted on the base (1), a pin support roller assembly (63) is rotatably mounted on the electric sliding support (61), a locking assembly (64) is symmetrically mounted on the electric sliding support (61), and an upper cover fixing device (62) is slidably mounted on the electric sliding support (61).

2. The welding device for a medical stapler with a temperature control function according to claim 1, characterized in that: The upper cover fixing device (62) includes an electric slider (621), a clamping slider (623) is symmetrically and slidably mounted on the electric slider (621), a rack (625) is mounted on the bottom end of the electric slider (621), the rack (625) is slidably connected to the electric slider (621), a servo motor (622) is mounted in the electric slider (621), a gear (624) is mounted on the output shaft of the servo motor (622), the gear (624) is meshed with the rack (625) for transmission, and a pre-tightening flip device (8) is mounted on the clamping slider (623).

3. The welding device for a medical stapler with a temperature control function according to claim 2, characterized in that: The pre-tightening flipping device (8) includes a propulsion end (81), the propulsion end (81) is mounted on a clamping slider (623), a sliding ring (83) is slidably mounted on the propulsion end (81), a clamping spring (82) is mounted between the sliding ring (83) and the propulsion ring, a pre-tightening ring (87) is movably mounted on the propulsion end (81), the pre-tightening ring (87) is rotatably connected to the sliding ring (83), a fixed head (84) is rotatably mounted on one end of the sliding ring (83), the fixed head (84) is rotatably connected to the pre-tightening ring (87), a pre-tightening spring (88) is mounted between the pre-tightening ring (87) and the fixed head (84), a bracket (86) is mounted at the bottom end of the fixed head (84), and an annular gasket (85) is mounted on the fixed head (84).

4. The welding device for a medical stapler with a temperature control function according to claim 3, characterized in that: The pushing end (81) includes a pushing head (811), the pushing head (811) is mounted on the clamping slider (623), a fixing pin (813) is mounted on one end of the pushing head (811), a positioning rod (812) is symmetrically mounted on one end of the pushing head (811), a transmission column (814) is symmetrically mounted on the fixing pin (813), the positioning rod (812) is slidably connected to the sliding ring (83), the fixing pin (813) is movably connected to the pre-tightening ring (87), the transmission column (814) is slidably connected to the pre-tightening ring (87), and the fixing pin (813) is slidably connected to the sliding ring (83).

5. The welding device for a medical stapler with a temperature control function according to claim 4, characterized in that: The sliding ring (83) is provided with a first rotating ring (831), the first rotating ring (831) is rotatably connected to the fixed head (84), the sliding ring (83) is provided with a second rotating groove (832), the sliding ring (83) is rotatably connected to the pre-tightening ring (87) through the second rotating groove (832), a slideway (833) is symmetrically provided in the sliding ring (83), the positioning rod (812) is slidably connected to the slideway (833), and a second damping block (834) is provided in the slideway (833).

6. The welding device for a medical stapler with a temperature control function according to claim 5, characterized in that: A first extrusion piece (871) is symmetrically provided on the preload ring (87), and the first extrusion piece (871) is connected to one end of the preload spring (88). An inclined groove (872) is provided on the preload ring (87), and the transmission column (814) is slidably installed in the inclined groove (872). A second rotating ring (873) is provided at one end of the preload ring (87), and the second rotating ring (873) is rotatably installed in the second rotating groove (832).

7. The welding device for a medical stapler with a temperature control function according to claim 6, characterized in that: The fixed head (84) is provided with a first rotating groove (841), the first rotating ring (831) is rotatably installed in the first rotating groove (841), the fixed head (84) is provided with a spring groove (842), the first extrusion piece (871) is located in the spring groove (842), a plurality of first damping blocks (844) are symmetrically arranged in the spring groove (842), the first damping blocks (844) are cylindrical, and second extrusion pieces (843) are symmetrically installed in the spring groove (842), and the other end of the preload spring (88) is connected to the second extrusion piece (843).

8. The welding device for a medical stapler with a temperature control function according to claim 1, characterized in that: The electric sliding support (61) is provided with a material discharge trough (611), the electric sliding support (61) is provided with a mounting seat (612), a nail support roller assembly (63) is rotatably mounted on the mounting seat (612), and a locking assembly (64) is symmetrically mounted on the mounting seat (612).

9. The welding device for a medical stapler with a temperature control function according to claim 8, characterized in that: The anvil seat roller assembly (63) comprises a plurality of rotating shafts (632), the rotating shafts (632) being rotatably mounted on the mounting seat (612), a bottom roller (631) being mounted on the rotating shaft (632), a plurality of limiting teeth (635) being provided on the bottom roller (631), an end of the rotating shaft (632) being designed with a rough surface, a plurality of transmission teeth (633) being provided on the rotating shaft (632), a transmission belt (634) being mounted on the rotating shaft (632), the transmission belt (634) being meshed with the transmission teeth (633) for transmission, and the shape of the limiting teeth (635) matching the shape of the anvil seat nail groove.

10. The welding device for a medical stapler with a temperature control function according to claim 9, characterized in that: The locking assembly (64) comprises a locking shell (641), the locking shell (641) being mounted on a mounting seat (612), an electric telescopic rod (642) being mounted on the locking shell (641), a locking plate (643) being mounted on an output shaft of the electric telescopic rod (642), and a surface of the locking plate (643) close to the rotating shaft (632) being designed with a rough surface.

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