Three-wheel sealing device for pipe machining

Abstract

This invention discloses a three-wheel sealing device for pipe fitting processing, relating to the technical field of pipe fitting processing devices. The invention includes an upper landing gear, with a lower landing gear fixedly mounted at its bottom. An upper slide is fixedly mounted on one side of the upper landing gear, and a sealing fixing frame is slidably mounted on one side of the upper slide. A sealing driver is fixedly mounted on the sealing fixing frame, and a rotating cylinder is rotatably mounted at the bottom of the sealing driver. An adjusting outer cylinder and a sealing base are sequentially fixedly mounted at the bottom of the rotating cylinder. Three riveting heads are evenly distributed along the axis of the rotating cylinder at the bottom of the sealing base. A sealing mechanism for driving the three riveting heads to perform three-wheel sealing of the pipe fitting is provided on one side of the sealing fixing frame. By setting up a sealing mechanism, this invention can reduce concentricity deviation and improve the pass rate. Simultaneously, by adjusting the contraction position of the three riveting heads, it improves compatibility with multiple pipe fitting specifications.

Description

Technical Field

[0001] This invention relates to the field of pipe fitting processing equipment technology, and specifically to a three-wheel sealing device for pipe fitting processing. Background Technology

[0002] When processing metal pipes, current processing equipment usually needs to seal the ends of the pipes. Traditional sealing equipment usually directly squeezes both sides of the end of the metal pipe, and the end of the metal pipe becomes flat after being squeezed, thereby achieving the sealing effect. However, the pipe ends of some special workpieces will form an outward-expanding frustum arc surface during production, which requires the use of special sealing equipment to shrink the outward-expanding part to the inward-facing end.

[0003] Existing sealing devices for pipe fitting processing typically only allow the chuck to push the product from one side to seal it. If the chuck is subjected to force for too long during rotation, the concentricity of the chuck will deviate, affecting the processing accuracy and reducing the product qualification rate. Furthermore, when processing products of different diameters, the chuck of the existing sealing device needs to be disassembled and reassembled, which is time-consuming, labor-intensive, and has low versatility. Therefore, a three-wheel sealing device for pipe fitting processing is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the problems of existing sealing devices for pipe fitting processing, where the cutter head used for sealing pipe fittings can typically only push the product to seal from one side. If the chuck is subjected to force for too long during rotation, the concentricity of the chuck will deviate, affecting processing accuracy and reducing product qualification rate. Furthermore, when processing products of different diameters, the cutter head of existing sealing devices needs to be disassembled repeatedly, which is time-consuming, labor-intensive, and has low versatility. This invention provides a three-wheel sealing device for pipe fitting processing.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A three-wheel sealing device for pipe fitting processing includes an upper landing gear, a lower landing gear fixedly mounted at the bottom of the upper landing gear, an upper slide fixedly mounted on one side of the upper landing gear, a sealing fixing frame slidably mounted on one side of the upper slide, a sealing actuator fixedly mounted on the sealing fixing frame, a rotating cylinder rotatably mounted at the bottom end of the sealing actuator, an adjusting outer cylinder and a sealing base plate sequentially fixedly mounted at the bottom end of the rotating cylinder, and three riveting heads provided at the bottom of the sealing base plate. The axis of the rotating cylinder is evenly distributed. A sealing mechanism is provided on one side of the sealing fixing frame for driving the three riveting heads to perform three-round sealing of the pipe fitting. A sliding frame is fixedly installed on one side of the lower landing gear. A tooling fixing frame is slidably installed on one side of the sliding frame. A pipe fitting tooling is fixedly installed on the side wall of the tooling fixing frame. A height adjustment mechanism is provided inside the lower landing gear for driving the pipe fitting tooling to rise and fall to adjust the height of the pipe fitting. A clamping mechanism for clamping the pipe fitting is provided on one side of the upper landing gear.

[0007] Furthermore, the sealing mechanism includes a drive motor fixedly installed on one side of the sealing fixing frame. Pullers are fixedly sleeved on the output shaft of the drive motor and on the rotating cylinder. A transmission belt is tensioned on both pulleys. A guide disc is fixedly installed inside the adjusting outer cylinder. Sliding claws are fixedly installed on the top of each riveting head. All three sliding claws are slidably installed on the bottom of the transmission belt. A sealing cylinder is fixedly installed on the top of the upper lifting frame. An upper connector is fixedly installed at the output end of the sealing cylinder. A lower connector adapted to the upper connector is fixedly installed on the top of the sealing fixing frame. An adjustment unit for adjusting the retraction position of the three riveting heads is provided at the bottom of the guide disc.

[0008] Furthermore, the adjustment unit includes an adjustment disc driven and installed at the bottom of the guide disc. Each of the three adjustment discs has an adjustment spring fixedly installed on one side close to each other. The other end of each adjustment spring is fixedly installed on the outer side wall of the adjustment disc. A guide groove is provided at the bottom of the sealing base. Each of the three riveting heads is slidably installed inside the guide groove.

[0009] Furthermore, a positioning rod is inserted into the bottom of the adjusting disc, the positioning rod is located between the three riveting heads, and the positioning rod is aligned with the axis of the rotating cylinder.

[0010] Furthermore, the height adjustment mechanism includes a guide rod fixedly installed on the inner wall of the top of the lower landing gear, a tooling bracket slidably installed at the bottom end of the guide rod, a height adjustment cylinder fixedly installed on the inner wall of the bottom of the lower landing gear, one side of the tooling bracket extending into the interior of the lower landing gear, the output end of the height adjustment cylinder fixedly installed at the bottom of the tooling bracket, and the position of the pipe fitting tooling corresponding to the axial position of the rotating cylinder.

[0011] Furthermore, a three-pronged guide plate is fixedly installed on the top of the lower landing gear. The three-pronged guide plate is U-shaped, and two long sliding grooves are opened on the side of the three-pronged guide plate near the tooling fixture. The tooling fixture is slidably installed inside the two long sliding grooves.

[0012] Furthermore, the clamping mechanism includes a clamping base disposed on one side of the upper landing gear. A travel slide rail is fixedly installed on the top of the clamping base. A clamping driver is slidably installed on the travel slide rail. A symmetrically distributed clamping jaw A and clamping jaw B are slidably installed on the side of the clamping driver near the upper landing gear. The positions of clamping jaw A and clamping jaw B correspond to the positions of the pipe fitting tooling.

[0013] Furthermore, a drive disk is fixedly installed at the bottom of the pipe fitting fixture, and an elastic sleeve is inserted into the top of the drive disk.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention sets up a sealing mechanism, which drives three riveting heads to rotate around the axis of the rotating cylinder. At this time, the sealing cylinder drives the entire sealing mechanism to press down through the lower connector and the upper connector until the top of the pipe fitting that needs to be sealed is inserted between the three riveting heads. The riveting heads perform a grinding-type sealing action on the end of the pipe fitting, making the end of the pipe fitting shrink more evenly, thereby reducing concentricity deviation and improving the product qualification rate.

[0016] 2. This invention, by setting an adjustment unit, allows the guide disc to drive the outer wall of the adjustment disc at its bottom to rotate before sealing. This, in turn, pulls the sliding claws within the guide disc via the adjustment springs, bringing the three riveting heads closer together. Before the sealing mechanism presses down, the adjustment disc drives the adjustment springs to return to their original position, causing the sliding claws to slide outward under the elastic action of the adjustment springs, thus moving the three riveting heads further apart. This facilitates the insertion of the top of the pipe fitting. Furthermore, due to the presence of the adjustment springs, the retraction position of the three riveting heads can be adjusted according to the diameter of the pipe fitting, improving the compatibility of the sealing mechanism with multiple pipe fitting specifications.

[0017] 3. By setting a positioning rod, after the top of the pipe fitting is inserted with three riveting heads, the positioning rod at the bottom of the adjusting plate will be inserted into the pipe fitting port at the same time. On the one hand, it can play a fixing role, and on the other hand, it can support the inner wall of the pipe fitting from the inside, preventing the pipe fitting port from shrinking excessively, keeping the inner diameter of the pipe fitting seal consistent with the outer diameter of the positioning rod, and further improving the qualification rate of the pipe fitting.

[0018] 4. By setting up a height adjustment mechanism, the present invention allows the tooling fixing frame to slide upward along the guide rod after the pipe fitting is inserted into the pipe fitting fixture. This can be achieved by the height adjustment cylinder, which can help reduce the sealing stroke by pressing down the sealing mechanism. On the other hand, the support height of the pipe fitting can be adjusted according to the length of the pipe fitting to accommodate the support and fixing of pipe fittings of various specifications.

[0019] 5. By setting up a clamping mechanism, after the pipe fitting is inserted into the pipe fitting fixture, the lifting structure carries the pipe fitting upward and then the clamp driver drives itself to slide to the bottom of the sealing mechanism. Then, the clamp drivers on both sides and the A-claw are driven to move closer to each other and tighten the pipe fitting, fixing the pipe fitting and preventing the pipe fitting from being skewed by force during the sealing process, which would affect the sealing quality.

[0020] 6. By setting a three-pronged guide plate, the U-shaped three-pronged guide plate can play an auxiliary role in material feeding. When the worker places the pipe fitting, the end of the pipe fitting that needs to be sealed can be sent into the interior of the three-pronged guide plate with the end facing upward. The pipe fitting will fall directly down along the side wall of the three-pronged guide plate and be inserted into the pipe fitting fixture, which simplifies the manual material feeding operation.

[0021] 7. By setting a drive disc, this invention allows for the insertion of an elastic sleeve into the pipe fitting fixture and its connection with the drive disc when the sealing accuracy requirements of some pipe fittings are not high. Then, the pipe fitting is directly inserted into the elastic sleeve and sealed, saving positioning time. In addition, the drive disc rotates in the opposite direction to the three riveting heads, increasing the relative angular velocity between the pipe fitting and the riveting heads and accelerating the sealing speed, thereby greatly simplifying the sealing process and improving the processing speed. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a first-view three-dimensional structural diagram of the drive motor and sealing mechanism of the present invention.

[0024] Figure 3 This is a second-view three-dimensional structural diagram of the drive motor and sealing mechanism of the present invention.

[0025] Figure 4 This is a three-dimensional structural diagram of the sealing mechanism of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the riveting head and sealing base plate of the present invention;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure inside the adjusting outer cylinder of the present invention;

[0028] Figure 7 This is a first-view three-dimensional structural diagram of the lower landing gear of the present invention;

[0029] Figure 8 This is a two-dimensional structural diagram of the lower landing gear from a second perspective of the present invention;

[0030] Figure 9 This is a three-dimensional structural diagram of the clamping mechanism of the present invention;

[0031] Reference numerals: 1. Upper landing gear; 2. Lower landing gear; 3. Upper slide; 4. Sealing fixing bracket; 5. Sealing actuator; 6. Rotating cylinder; 7. Adjusting outer cylinder; 8. Sealing chassis; 9. Riveting head; 10. Drive motor; 11. Pulley; 12. Transmission belt; 13. Guide plate; 14. Sliding claw; 15. Adjusting plate; 16. Sealing cylinder; 17. Adjusting tension spring; 18. Guide groove; 19. Positioning rod; 20. Tooling fixing bracket; 21. Guide rod; 22. Height adjustment cylinder; 23. Pipe fitting tooling; 24. Lower slide; 25. Three-way guide plate; 26. Fixture base; 27. Traveling slide rail; 28. Fixture actuator; 29. ​​A claw; 30. B claw; 31. Lower connector; 32. Upper connector. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0036] like Figures 1 to 9 As shown, a three-wheel sealing device for pipe fitting processing includes an upper landing gear 1, a lower landing gear 2 fixedly mounted at the bottom of the upper landing gear 1, an upper slide 3 fixedly mounted on one side of the upper landing gear 1, a sealing fixing frame 4 slidably mounted on one side of the upper slide 3, a sealing driver 5 fixedly mounted on the sealing fixing frame 4, a rotating cylinder 6 rotatably mounted at the bottom end of the sealing driver 5, an adjusting outer cylinder 7 and a sealing base 8 sequentially fixedly mounted at the bottom end of the rotating cylinder 6, three riveting heads 9 evenly distributed along the axis of the rotating cylinder 6 at the bottom of the sealing base 8, a sealing mechanism for driving the three riveting heads 9 to perform three-wheel sealing of the pipe fitting on one side of the sealing fixing frame 4, a lower slide 24 fixedly mounted on one side of the lower landing gear 2, a tooling fixing frame 20 slidably mounted on one side of the lower slide 24, and a pipe fitting tool 2 fixedly mounted on the side wall of the tooling fixing frame 20. 3. The lower landing gear 2 is equipped with a height adjustment mechanism for driving the pipe fitting fixture 23 to lift and lower to adjust the height of the pipe fitting. The upper landing gear 1 is equipped with a clamping mechanism for clamping the pipe fitting on one side. Specifically, the three-wheel sealing device for pipe fitting processing, by setting a sealing mechanism, allows the pipe fitting to be placed in the pipe fitting fixture 23 when it is necessary to seal the pipe fitting. Then, the clamping mechanism positions the riveting head 9, and then the sealing mechanism is activated to drive the three riveting heads 9 to rotate around the axis of the rotating cylinder 6 and press down until the top of the pipe fitting that needs to be sealed is inserted between the three riveting heads 9. The riveting heads 9 perform a grinding-type sealing action on the end of the pipe fitting, making the end of the pipe fitting shrink more evenly, thereby reducing concentricity deviation and improving the product qualification rate. At the same time, the shrinkage position of the three riveting heads 9 can be adjusted according to the diameter of the pipe fitting, which improves the compatibility of the sealing mechanism with multiple specifications of pipe fittings.

[0037] like Figure 2 , Figure 3 , Figure 4As shown, the sealing mechanism includes a drive motor 10 fixedly installed on one side of the sealing frame 4. Pulleys 11 are fixedly sleeved on the output shaft of the drive motor 10 and the rotating cylinder 6. A transmission belt 12 is tensioned on both pulleys 11. A guide disc 13 is fixedly installed inside the adjusting outer cylinder 7. Sliding claws 14 are fixedly installed on the top of each riveting head 9. All three sliding claws 14 are slidably installed on the bottom of the transmission belt 12. A sealing cylinder 16 is fixedly installed on the top of the upper landing gear 1. An upper connector 32 is fixedly installed at the output end of the sealing cylinder 16. A lower connector 31, compatible with the upper connector 32, is fixedly installed on the top of the sealing frame 4. An adjustment unit for adjusting the retraction position of the three riveting heads 9 is provided at the bottom of the guide disc 13. Specifically, by setting the sealing... The mechanism allows the pipe fitting to be placed in the fitting fixture 23 when sealing is required. The clamping mechanism then positions the riveting head 9, and the lower connector 31 and upper connector 32 can be assembled and connected. The drive motor 10 is then started, which drives the rotating cylinder 6 to rotate through the pulley 11 and transmission belt 12. The outer cylinder 7 and sealing base 8 are then adjusted to drive the three riveting heads 9 to rotate around the axis of the rotating cylinder 6. At this time, the sealing cylinder 16 will drive the entire sealing mechanism to press down through the lower connector 31 and upper connector 32 until the top of the pipe fitting that needs to be sealed is inserted between the three riveting heads 9. The riveting heads 9 perform a grinding-type sealing action on the end of the pipe fitting, making the end of the pipe fitting shrink more evenly, thereby reducing concentricity deviation and improving the product qualification rate.

[0038] like Figure 6 As shown, the adjustment unit includes an adjustment disc 15 driven and installed at the bottom of the guide disc 13. Adjustment springs 17 are fixedly installed on the sides of the three adjustment discs 15 that are close to each other. The other ends of the adjustment springs 17 are fixedly installed on the outer wall of the adjustment disc 15. A guide groove 18 is provided at the bottom of the sealing base 8, and the three riveting heads 9 are slidably installed inside the guide groove 18. Specifically, by setting the adjustment unit, before sealing, the guide disc 13 drives the outer wall of the adjustment disc 15 at its bottom to rotate, thereby pulling the sliding claws 14 to slide within the guide disc 13 through the adjustment springs 17, making the three riveting heads 9 close to each other. Before the sealing mechanism presses down, the adjustment disc 15 drives the adjustment springs 17 to return to their original position, causing the sliding claws 14 to slide outwards under the elastic action of the adjustment springs 17, making the three riveting heads 9 move away from each other, thus facilitating the insertion of the pipe tip. Simultaneously, due to the presence of the adjustment springs 17, the retraction position of the three riveting heads 9 can be adjusted according to the diameter of the pipe, improving the compatibility of the sealing mechanism with multi-specification pipes.

[0039] like Figure 5As shown, a positioning rod 19 is inserted into the bottom of the adjusting plate 15. The positioning rod 19 is located between the three riveting heads 9, and its position is consistent with the axis of the rotating cylinder 6. Specifically, by setting the positioning rod 19, after the top of the pipe fitting is inserted into the three riveting heads 9, the positioning rod 19 at the bottom of the adjusting plate 15 will be inserted into the pipe fitting port at the same time. On the one hand, it can work with the pipe fitting fixture 23 and the clamping mechanism to fix the pipe fitting in three positions. On the other hand, it can support the inner wall of the pipe fitting from the inside, prevent the pipe fitting port from shrinking excessively, keep the inner diameter of the pipe fitting's seal consistent with the outer diameter of the positioning rod 19, and further improve the pipe fitting's qualification rate. Moreover, the positioning rod 19 is inserted into the adjusting plate 15, and the positioning rod 19 can be replaced at any time to improve the adaptability to multiple specifications of pipe fittings.

[0040] like Figure 7 , Figure 8 As shown, the height adjustment mechanism includes a guide rod 21 fixedly installed on the inner wall of the top of the lower landing gear 2, a tooling fixing frame 20 slidably installed on the bottom end of the guide rod 21, a height adjustment cylinder 22 fixedly installed on the inner wall of the bottom of the lower landing gear 2, one side of the tooling fixing frame 20 extending into the interior of the lower landing gear 2, the output end of the height adjustment cylinder 22 fixedly installed at the bottom of the tooling fixing frame 20, and the position of the pipe fitting tool 23 corresponding to the axis position of the rotating cylinder 6. Specifically, by setting up the height adjustment mechanism, after the pipe fitting is inserted into the pipe fitting tool 23, the tooling fixing frame 20 can be driven by the height adjustment cylinder 22 to slide upward along the guide rod 21. On the one hand, this can cooperate with the downward pressure of the sealing mechanism to reduce the sealing stroke; on the other hand, it can adjust the support height of the pipe fitting according to the length of the pipe fitting to adapt to the support and fixing of multiple specifications of pipe fittings.

[0041] like Figure 7 As shown, a three-pronged guide plate 25 is fixedly installed on the top of the lower landing gear 2. The three-pronged guide plate 25 is U-shaped, and two long sliding grooves are opened on the side of the three-pronged guide plate 25 near the tooling fixture 20. The tooling fixture 20 is slidably installed inside the two long sliding grooves. Specifically, by setting the three-pronged guide plate 25, the U-shaped three-pronged guide plate 25 can play an auxiliary role in preventing material from falling. When the worker places the pipe fitting, the end of the pipe fitting that needs to be sealed can be sent into the interior of the three-pronged guide plate 25 with the end facing upward. The pipe fitting will fall directly down along the side wall of the three-pronged guide plate 25 and be inserted into the pipe fitting fixture 23, which simplifies the manual material placement operation.

[0042] like Figure 9As shown, the clamping mechanism includes a clamping base 26 disposed on one side of the upper landing gear 1. A travel slide rail 27 is fixedly installed on the top of the clamping base 26. A clamping driver 28 is slidably installed on the travel slide rail 27. A symmetrically distributed A jaws 29 and B jaws 30 are slidably installed on the side of the clamping driver 28 near the upper landing gear 1. The positions of A jaws 29 and B jaws 30 correspond to the positions of the pipe fitting fixture 23. Specifically, by setting up the clamping mechanism, after the pipe fitting is inserted into the pipe fitting fixture 23, the lifting structure carries the pipe fitting upward. Then, the clamping driver 28 drives itself to slide to the bottom of the sealing mechanism. Then, the clamping drivers 28 and A jaws 29 on both sides drive each other to approach and tighten the pipe fitting, fixing the pipe fitting and preventing the pipe fitting from being skewed by force during the sealing process, which would affect the sealing quality.

[0043] like Figure 7 As shown, a drive disc is fixedly installed at the bottom of the pipe fitting fixture 23, and an elastic sleeve is inserted into the top of the drive disc. Specifically, by setting the drive disc, when the sealing accuracy requirement of some pipe fittings is not high, the elastic sleeve can be inserted into the inside of the pipe fitting fixture 23 and connected to the drive disc. Then, the pipe fitting is directly inserted into the elastic sleeve and sealed, thereby saving positioning time. During the sealing process, the drive disc will rotate in the opposite direction to the three riveting heads 9, thereby increasing the relative angular velocity between the pipe fitting and the riveting heads 9, accelerating the sealing speed, and thus greatly simplifying the sealing process and improving the processing speed.

[0044] In summary: This three-wheel sealing device for pipe fitting processing, by setting a sealing mechanism, allows the pipe fitting to be placed in the pipe fitting fixture 23 when sealing is required. The clamping mechanism then positions the riveting heads 9, and the lower connector 31 and upper connector 32 can be assembled and connected. The drive motor 10 is then started, driving the rotating drum 6 to rotate via the pulley 11 and transmission belt 12. This, in turn, adjusts the outer drum 7 and sealing base 8 to rotate the three riveting heads 9 around the axis of the rotating drum 6. At this time, the sealing cylinder 16, through the lower connector 31 and upper connector 32, drives the entire sealing mechanism downwards until the top of the pipe fitting to be sealed is inserted between the three riveting heads 9. The riveting heads 9 then perform a grinding-like sealing action on the pipe fitting's end, sealing the pipe... The end shrinkage of the fitting is more uniform, thereby reducing concentricity deviation and improving product qualification rate. By setting an adjustment unit, before sealing, the guide plate 13 drives the outer wall of the adjustment plate 15 at its bottom to rotate, and then the adjustment spring 17 pulls each sliding claw 14 to slide within the guide plate 13, so that the three riveting heads 9 are closer to each other. Before the sealing mechanism presses down, the adjustment plate 15 drives each adjustment spring 17 to return to its original position, so that the sliding claw 14 slides outward under the elastic action of the adjustment spring 17, so that the three riveting heads 9 are further apart, thus facilitating the insertion of the top of the fitting. At the same time, due to the presence of the adjustment spring 17, the shrinkage position of the three riveting heads 9 can be adjusted according to the diameter of the fitting, improving the compatibility of the sealing mechanism with multi-specification fittings. The system is designed to accommodate various pipe fittings. By setting a positioning rod 19, after the top of the pipe fitting is inserted with three riveting heads 9, the positioning rod 19 at the bottom of the adjusting plate 15 simultaneously inserts into the pipe fitting port. This serves two purposes: firstly, it works in conjunction with the pipe fitting fixture 23 and the clamping mechanism to fix the pipe fitting in three positions; secondly, it provides internal support to the pipe fitting's inner wall, preventing excessive shrinkage of the pipe fitting port and maintaining consistency between the inner diameter of the pipe fitting's seal and the outer diameter of the positioning rod 19, further improving the pipe fitting's pass rate. Furthermore, the positioning rod 19 is inserted into the adjusting plate 15, allowing for easy replacement of the positioning rod 19 to enhance compatibility with various pipe fitting specifications. A height adjustment mechanism is also included, allowing the fixture fixing frame 20 to be driven along the guide rod 21 by the height adjustment cylinder 22 after the pipe fitting is inserted into the pipe fitting fixture 23. The upward sliding mechanism serves two purposes: firstly, it coordinates with the downward pressure of the sealing mechanism, reducing the sealing stroke; secondly, it allows for adjustment of the pipe's support height based on its length, accommodating various pipe specifications. The U-shaped three-pronged guide plate 25 assists in preventing material leakage. When placing the pipe, the end to be sealed is fed upwards into the guide plate 25, causing the pipe to fall directly into the fitting fixture 23 along the side wall, simplifying manual material placement. A clamping mechanism, after the pipe is inserted into the fixture 23, carries it upwards, and then the clamp driver 28 drives it to slide to the bottom of the sealing mechanism.Then, the clamping drivers 28 and jaw 29 on both sides are driven to move closer together and tighten the pipe, fixing it in place and preventing it from tilting under force during the sealing process, which would affect the sealing quality. By setting a drive disc, when the sealing accuracy requirement for some pipes is not high, an elastic sleeve can be inserted inside the pipe fitting fixture 23 and connected to the drive disc. Then, the pipe can be directly inserted into the elastic sleeve and sealed, thus saving positioning time. During the sealing process, the drive disc rotates in the opposite direction to the three riveting heads 9, thereby increasing the relative angular velocity between the pipe and the riveting heads 9, accelerating the sealing speed, and thus greatly simplifying the sealing process and increasing the processing speed.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A three-wheel sealing device for pipe fitting processing, characterized in that, The system includes an upper landing gear (1), a lower landing gear (2) fixedly mounted at the bottom of the upper landing gear (1), an upper slide (3) fixedly mounted on one side of the upper landing gear (1), a sealing fixing bracket (4) slidably mounted on one side of the upper slide (3), a sealing driver (5) fixedly mounted on the sealing fixing bracket (4), a rotating cylinder (6) rotatably mounted at the bottom end of the sealing driver (5), an adjusting outer cylinder (7) and a sealing base (8) fixedly mounted sequentially at the bottom end of the rotating cylinder (6), and three riveting heads (9) provided at the bottom of the sealing base (8). The three riveting heads (9) move along the rotating cylinder. The axis of the rotating drum (6) is evenly distributed. A sealing mechanism for driving the three riveting heads (9) to seal the pipe fittings in three rounds is provided on one side of the sealing fixing frame (4). A sliding frame (24) is fixedly installed on one side of the lower landing gear (2). A tooling fixing frame (20) is slidably installed on one side of the sliding frame (24). A pipe fitting tooling (23) is fixedly installed on the side wall of the tooling fixing frame (20). A height adjustment mechanism for driving the pipe fitting tooling (23) to rise and fall to adjust the height of the pipe fitting is provided inside the lower landing gear (2). A clamping mechanism for clamping the pipe fitting is provided on one side of the upper landing gear (1). The sealing mechanism includes a drive motor (10) fixedly installed on one side of the sealing frame (4). The output shaft of the drive motor (10) and the rotating cylinder (6) are both fixedly fitted with pulleys (11). The two pulleys (11) are tensioned with the same transmission belt (12). The inner part of the adjusting outer cylinder (7) is fixedly installed with a guide plate (13). The top of each riveting head (9) is fixedly installed with a sliding claw (14). The three sliding claws (14) are all slidably installed at the bottom of the transmission belt (12). The top of the upper landing gear (1) is fixedly installed with a sealing cylinder (16). The output end of the sealing cylinder (16) is fixedly installed with an upper connector (32). The top of the sealing frame (4) is fixedly installed with a lower connector (31) that is compatible with the upper connector (32). The bottom of the guide plate (13) is provided with an adjustment unit for adjusting the retraction position of the three riveting heads (9). The adjustment unit includes an adjustment disc (15) driven and installed at the bottom of the guide disc (13). An adjustment spring (17) is fixedly installed on one side of each of the three sliding claws (14) that are close to each other. The other end of the adjustment spring (17) is fixedly installed on the outer side wall of the adjustment disc (15). A guide groove (18) is opened at the bottom of the sealing base (8). The three riveting heads (9) are slidably installed inside the guide groove (18). A three-pronged guide plate (25) is fixedly installed on the top of the lower landing gear (2). The three-pronged guide plate (25) is U-shaped. Two long sliding grooves are opened on the side of the three-pronged guide plate (25) near the tooling fixture (20). The tooling fixture (20) is slidably installed inside the two long sliding grooves.

2. The three-wheel sealing device for pipe fitting processing according to claim 1, characterized in that, A positioning rod (19) is inserted into the bottom of the adjusting plate (15). The positioning rod (19) is located between the three riveting heads (9). The positioning rod (19) is aligned with the axis of the rotating cylinder (6).

3. The three-wheel sealing device for pipe fitting processing according to claim 1, characterized in that, The height adjustment mechanism includes a guide rod (21) fixedly installed on the inner wall of the top of the lower landing gear (2), a tooling bracket (20) slidably installed on the bottom end of the guide rod (21), a height adjustment cylinder (22) fixedly installed on the inner wall of the bottom of the lower landing gear (2), one side of the tooling bracket (20) extending into the interior of the lower landing gear (2), the output end of the height adjustment cylinder (22) fixedly installed at the bottom of the tooling bracket (20), and the position of the pipe fitting tool (23) corresponding to the axial position of the rotating cylinder (6).

4. The three-wheel sealing device for pipe fitting processing according to claim 1, characterized in that, The clamping mechanism includes a clamp base (26) disposed on one side of the upper landing gear (1). A travel slide rail (27) is fixedly installed on the top of the clamp base (26). A clamp driver (28) is slidably installed on the travel slide rail (27). A symmetrically distributed A jaw (29) and B jaw (30) are slidably installed on the side of the clamp driver (28) near the upper landing gear (1). The positions of the A jaw (29) and the B jaw (30) correspond to the positions of the pipe fitting fixture (23).

5. A three-wheel sealing device for pipe fitting processing according to claim 1, characterized in that, The bottom of the pipe fitting fixture (23) is fixedly installed with a drive disk, and the top of the drive disk is inserted with an elastic sleeve.

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