A tee joint forming die

Abstract

The application discloses a tee forming die and belongs to the technical field of pipe processing. The tee forming die comprises a base, a fixing seat and a mounting seat fixedly arranged on the base, a clamp arranged on the base and corresponding to the fixing seat and the mounting seat and used for positioning and clamping and fixing a double-pass pipe sleeve, a ball placed in the double-pass pipe, and an extrusion structure arranged on the base and corresponding to a position above the clamp and used for extruding the ball to form a tee branch pipe laterally. The tee forming die is provided with a buffering and resetting structure. When the clamp is used for positioning and clamping the double-pass pipe, the buffering and resetting structure can play a buffering role and reduce the deformation of the pipe during direct clamping and positioning. After the extrusion structure drives the ball to extrude and form the tee branch pipe, the ball can be pushed back to the initial position through the elastic force, the ball can be recycled without manual taking out and re-feeding each time, the manual operation steps are greatly reduced, and the operation convenience is improved.

Description

Technical Field

[0001] This application relates to the field of pipe fitting processing technology, specifically a tee forming mold. Background Technology

[0002] In many fields such as pipeline engineering and fluid transportation, tee fittings are critical connecting components with enormous demand. They are widely used in industries such as petroleum, chemical, natural gas, water supply, and heating, playing an indispensable role in ensuring the normal operation and functionality of pipeline systems. Traditional tee pipe production uses forming molds, which typically consist of clamps and extrusion structures: the clamps hold and position the tee pipe, while the extrusion structure uses a driving ball to extrude the lateral walls of the tee pipe, deforming the pipe to form a tee branch.

[0003] However, traditional forming molds often use rigid contact to clamp and position double-pass pipes, which can easily cause the pipe to deform due to uneven force during clamping, affecting the subsequent forming accuracy. In addition, when using a ball to extrude a double-pass pipe to form a branch pipe laterally, the ball is directly discharged from the mold after extrusion, and the discharged ball needs to be manually put back into a new double-pass pipe, which increases the complexity of the operation and the labor intensity.

[0004] Therefore, this application provides a three-way forming mold to solve the above problems. Utility Model Content

[0005] This application provides a three-way forming mold, which aims to solve the problems mentioned in the background art, such as the existing forming molds being prone to deformation and affecting accuracy due to uneven force under rigid contact when clamping two-way pipes, and the need for manual repeated feeding after the ball is extruded, which increases the complexity of operation and labor intensity.

[0006] To achieve the above objectives, this application provides the following technical solution: a tee forming mold, comprising a base, a fixed seat and a mounting seat fixedly disposed on the base, a clamp disposed on the base between the fixed seat and the mounting seat for positioning and clamping a two-way pipe, a ball placed inside the two-way pipe, and an extrusion structure disposed on the base above the clamp for causing the ball to extrude the two-way pipe laterally to form a tee branch pipe;

[0007] Each of the fixed bases is provided with a channel that communicates with the clamp to allow the ball to pass through the side of the double-pass tube;

[0008] The tee forming mold also includes a buffer and reset structure set on the fixed base at the channel position to buffer when the clamp holds the double-way pipe and to push the ball back to its original position by elastic force after the ball enters the channel; by clamping and fixing the double-way pipe with the clamp, and using the extrusion structure to drive the extrusion of the ball inside the double-way pipe, the double-way pipe can be laterally deformed to form a tee branch pipe. At the same time, through the design of the buffer and reset structure, it not only plays a buffering role when the clamp holds and positions the double-way pipe, reducing the deformation of the pipe during the direct clamping and positioning process, but also, after the extrusion structure drives the ball to be extruded to form a tee branch pipe, it can push the ball back to its initial position by elastic force, realizing cyclic use, eliminating the need for manual removal and re-insertion of the ball each time, greatly reducing manual operation steps and improving the convenience of operation.

[0009] Preferably, to achieve positioning and clamping of the double-through pipe sleeve, the clamp includes a movable seat slidably connected to the base and located between the fixed seat and the mounting seat; a positioning post fixedly mounted on the movable seat for positioning the double-through pipe sleeve; a semi-circular block one fixedly mounted on the fixed seat and located on the movable seat on one side of the positioning post; a semi-circular block two fixedly mounted on the movable seat and located on the side of the positioning post away from the semi-circular block one; and a clamping device fixedly mounted on the mounting seat and fixedly connected to the semi-circular block two for positioning the double-through pipe sleeve. The cylinder one moves the semi-circular block two closer to or away from the semi-circular block one. The semi-circular block one has a through hole communicating with the channel. The double tube can be sleeved on it by the positioning post to achieve initial positioning. Then, the cylinder one pushes the semi-circular block two closer to or away from the semi-circular block one on the fixed seat, so that the double tube can be clamped or released. This can achieve the positioning and clamping of the tube without manual alignment. At the same time, the through hole on the semi-circular block one communicates with the channel, which can provide a path for the movement of the ball and ensure that the ball can enter the channel smoothly.

[0010] Preferably, in order to ensure the support for the return of the ball, the top of the positioning post is provided with an arc-shaped groove for supporting the bottom of the ball; the shape of the arc-shaped groove at the top of the positioning post is adapted to the bottom of the ball, and when the ball is placed in the double-pass pipe or returns to the initial position, it will fall into the arc-shaped groove. The arc-shaped groove can limit and support the ball, thereby ensuring the cyclic use of the ball and not affecting the extrusion of the ball.

[0011] Preferably, in order to form a three-way branch pipe through an extrusion action, the extrusion structure includes a fixed frame fixedly installed on the base and located on one side of the fixed seat and mounting seat; a mounting plate fixedly installed on the top of the fixed frame; a lifting seat disposed at the bottom of the mounting plate and located above the semi-circular block; an extrusion column fixedly installed on the side of the lifting seat near the semi-circular block for insertion from the end of the two-way pipe away from the positioning post; an inclined surface fixedly disposed at the bottom of the extrusion column for converting the lifting motion of the extrusion column into a lateral extrusion force on the sphere; and a fixed mounting... A second cylinder, fixedly connected to the top of the lifting seat and mounted on the mounting plate, is used to raise and lower the lifting seat. A guide rod, symmetrically fixed to the lifting seat and slidably connected to the mounting plate, is also present. The second cylinder drives the lifting seat to descend, causing the extrusion column to insert from the end of the double-pass pipe away from the positioning column. The inclined surface contacts the ball, thus converting the raising and lowering motion of the extrusion column into lateral extrusion force on the ball. This causes the ball to extrude the double-pass pipe laterally, forming a three-way branch pipe. The guide rod, symmetrically fixed to the lifting seat and slidably connected to the mounting plate, serves as a guide, ensuring smooth raising and lowering of the lifting seat.

[0012] Preferably, to provide buffering for the double-through pipe and return of the ball to its original position, the buffering and resetting structure includes a fixed cylinder fixedly installed on the side of the fixed seat away from the semi-circular block, a telescopic rod that passes through the fixed seat, the channel, and the through hole sequentially and is slidably connected inside the fixed cylinder, and a spring sleeved on the telescopic rod. The two ends of the spring are fixedly connected to the inside of the fixed cylinder and the telescopic rod, respectively. With this design, when the clamp holds the double-through pipe, one end of the telescopic rod contacts the double-through pipe first, which can play a buffering role. When the extrusion structure drives the ball to extrude the double-through pipe, the ball enters the channel and compresses the telescopic rod. The spring is further compressed. After the extrusion is completed, the elastic force of the spring pushes the telescopic rod to reset, thereby pushing the ball back to its initial position. This reduces pipe deformation and realizes the reset and reuse of the ball, eliminating the need for repeated manual handling of the ball and improving the convenience of operation.

[0013] Preferably, to ensure contact between the telescopic rod and the double-tube and the ball, a rubber pad is fixedly provided at the end of the telescopic rod near the through hole for contact with the surfaces of the double-tube and the ball. Due to the good elasticity and softness of the rubber pad, its design allows it to deform when the end of the telescopic rod near the through hole contacts the surfaces of the double-tube and the ball, filling the tiny gaps between them and making the contact tighter. This further reduces the damage to the double-tube and the ball caused by rigid contact, while also facilitating better transmission of elastic force, ensuring the ball can smoothly return to its original position, and improving the overall performance and reliability of the mold.

[0014] The tee forming mold, through the design of the buffer and reset structure, not only plays a buffering role when the clamp holds and positions the double pipe, reducing the deformation of the pipe during the direct clamping and positioning process, but also, after the extrusion structure drives the ball to be extruded to form the tee branch pipe, it can push the ball back to the initial position through elastic force, realizing cyclic use. It eliminates the need for manual removal and re-insertion of the ball each time, greatly reducing manual operation steps and improving the convenience of operation.

[0015] The tee forming mold uses a positioning post to attach the double pipe for initial positioning. Then, by using cylinder one to push the semi-circular block two closer to or further away from the semi-circular block one on the fixed base, the double pipe can be clamped or released. This allows for easy positioning and clamping of the pipe without the need for manual alignment, further improving the convenience of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a three-way forming mold;

[0017] Figure 2 This is a schematic diagram of the extrusion structure in a three-way forming die;

[0018] Figure 3 This is a schematic diagram of the fixture in a three-way forming mold;

[0019] Figure 4 This is a cross-sectional schematic diagram of the clamping, buffering, and resetting structure in a three-way forming mold.

[0020] In the picture:

[0021] 1. Base; 11. Fixing base; 12. Mounting base

[0022] 2. Fixture; 21. Moving seat; 22. Positioning pin; 221. Arc-shaped groove; 23. Semi-arc block one; 231. Through hole; 24. Semi-arc block two; 25. Cylinder one;

[0023] 3. Sphere;

[0024] 4. Extrusion structure; 41. Fixing frame; 42. Mounting plate; 43. Lifting seat; 44. Extrusion column; 45. Inclined surface; 46. Cylinder II; 47. Guide rod;

[0025] 5. Passageway;

[0026] 6. Buffer and reset structure; 61. Fixed cylinder; 62. Telescopic rod; 63. Spring. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] This embodiment provides a three-way forming mold, such as Figures 1-4 As shown, the tee forming mold includes a base 1, a fixed seat 11 and a mounting seat 12 fixedly mounted on the base 1, a clamp 2 disposed on the base 1 between the fixed seat 11 and the mounting seat 12 for positioning and clamping the double-way pipe, a ball 3 placed inside the double-way pipe, and an extrusion structure 4 disposed on the base 1 above the clamp 2 for pressing the ball 3 to the side of the double-way pipe to form a tee branch; the fixed seat 11 is provided with a channel 5 communicating with the clamp 2 for the ball 3 to pass through the side of the double-way pipe; the tee forming mold also includes a buffer and reset structure 6 disposed on the fixed seat 11 at the position corresponding to the channel 5 for buffering when the clamp 2 clamps the double-way pipe and for the ball 3 to be pushed back to its original position by elastic force after entering the channel 5.

[0029] In use, the double-pass pipe is first positioned and clamped by clamp 2. However, while clamp 2 is clamping the double-pass pipe, the buffer and reset structure 6, located at the corresponding channel 5 position on the fixed base 11, begins to function. It first contacts the double-pass pipe and uses its own extension and retraction to buffer the movement, preventing excessive clamping force from deforming the double-pass pipe. Then, the ball 3 is placed inside the double-pass pipe. At this point, the extrusion structure 4 is activated, descending and inserting into the double-pass pipe to extrude the ball 3. As the extrusion structure 4 continues to descend, its lifting motion is converted into lateral extrusion force on the ball 3. Under this extrusion force, the ball 3 begins to extrude laterally through the double-pass pipe, causing the double-pass pipe to... Laterally, the ball gradually deforms, eventually forming a three-way branch pipe. During the process of the ball 3 extruding the two-way pipe, the ball 3 will enter the channel 5 of the fixed seat 11 along the extrusion direction, while continuing to compress the buffer and reset structure 6. The compression buffer and reset structure 6 continues to store elastic potential energy. When the three-way branch pipe is formed, the extrusion structure 4 rises. At this time, the buffer and reset structure 6 releases elastic potential energy, which can push the ball 3 through the channel 5 into the extruded three-way branch pipe, and then return to the initial position to prepare for the next processing. This achieves stable forming of the three-way pipe, and the return of the ball 3 does not require manual repeated handling of the ball 3, improving the convenience of operation.

[0030] Specifically, the clamp 2 includes a movable seat 21 slidably connected to the base 1 and located between the fixed seat 11 and the mounting seat 12, a positioning post 22 fixedly installed on the movable seat 21 for positioning the double-through pipe sleeve, a semi-circular block 23 fixedly installed on the fixed seat 11 and located on one side of the positioning post 22 on the movable seat 21, a semi-circular block 24 fixedly installed on the movable seat 21 and located on the side of the positioning post 22 away from the semi-circular block 23, and a cylinder 25 fixedly installed on the mounting seat 12 and fixedly connected to the semi-circular block 24 for moving the semi-circular block 24 closer to or away from the semi-circular block 23. The semi-circular block 23 has a through hole 231 communicating with the channel 5.

[0031] First, one end of the double-ended pipe is fitted onto the positioning post 22 of the clamp 2. The positioning post 22 provides initial positioning for the double-ended pipe, ensuring that it is in a relatively accurate position when initially placed. Next, the cylinder 25 on the mounting base 12 is activated. The cylinder 25 starts working and generates a pushing force. Since the cylinder 25 is fixedly connected to the semi-circular block 24, and the semi-circular block 24 is fixedly mounted on the movable base 21, the pushing force of the cylinder 25 is transmitted to the semi-circular block 24, causing the movable base 21 to slide on the base 1. As the movable base 21 slides, the semi-circular block 24, which is mounted on the movable base 21 and located on the side of the positioning post 22 away from the semi-circular block 23, gradually moves towards the fixed mounting base 1. As the semi-circular block 23 on the fixed seat 11 and located on one side of the positioning post 22 approaches, the double-pass tube is gradually clamped as the semi-circular block 24 approaches the semi-circular block 23. When the semi-circular block 24 and the semi-circular block 23 are tightly fitted together, the double-pass tube is firmly clamped between the two. At this time, the double-pass tube is in a stable processing state. Meanwhile, the semi-circular block 23 has a through hole 231 that communicates with the channel 5. This through hole 231 provides the necessary movement space for the movement of the ball 3 and the extrusion operation during the subsequent process of the ball 3 extruding the double-pass tube to form a three-way branch tube, ensuring that the ball 3 can smoothly enter the channel 5 from one side of the double-pass tube through the through hole 231, thereby completing the entire three-way forming process.

[0032] In order to ensure the support for the return of the ball 3, the top of the positioning post 22 is provided with an arc-shaped groove 221 for supporting the bottom of the ball 3. The shape of the arc-shaped groove 221 on the top of the positioning post 22 is adapted to the bottom of the ball 3. When the ball 3 is placed in the double tube or returns to the initial position, it will fall into the arc-shaped groove 221. The arc-shaped groove 221 can limit and support the ball 3, thereby ensuring the cyclic use of the ball 3.

[0033] Furthermore, the extrusion structure 4 includes a fixed frame 41 fixedly mounted on the base 1 and located on one side of the fixed seat 11 and the mounting seat 12; a mounting plate 42 fixedly mounted on the top of the fixed frame 41; a lifting seat 43 located at the bottom of the mounting plate 42 and above the semi-circular block 23; an extrusion column 44 fixedly mounted on the side of the lifting seat 43 near the semi-circular block 23 for insertion from the end of the double-through pipe away from the positioning column 22; an inclined surface 45 fixedly mounted at the bottom of the extrusion column 44 for converting the lifting motion of the extrusion column 44 into a lateral extrusion force on the ball 3; a cylinder 46 fixedly mounted on the mounting plate 42 and fixedly connected to the top of the lifting seat 43 for raising and lowering the lifting seat 43; and guide rods 47 symmetrically fixedly connected to the lifting seat 43 and slidably connected to the mounting plate 42.

[0034] After the double-tube is positioned and clamped by clamp 2, cylinder 46 in extrusion structure 4 is activated. Since cylinder 46 is fixedly connected to the top of lifting seat 43, its piston rod pushes the lifting seat 43 downwards. Guide rods 47, symmetrically fixed to the lifting seat 43 and slidably connected to the mounting plate 42, guide and stabilize the lifting seat 43 during its descent, ensuring it moves only in a straight line in the vertical direction without deviation or wobbling, thus guaranteeing the accuracy of the extrusion operation. As the lifting seat 43 descends smoothly under the drive of cylinder 46, the extrusion column 44, fixedly mounted on the lifting seat 43, also descends. Because the extrusion column 44 is positioned above the semi-circular block 23 and directly opposite the end of the double-tube furthest from the positioning column 22, when the extrusion... When the extrusion column 44 descends to the appropriate position, it will be accurately inserted from the end of the double-pass tube away from the positioning column 22. The bottom of the extrusion column 44 is fixedly provided with an inclined surface 45. When the extrusion column 44 continues to descend and contacts the ball 3 placed in the double-pass tube, the inclined surface 45 interacts with the ball 3. Due to the special shape of the inclined surface 45, it will convert the vertical lifting and lowering motion of the extrusion column 44 into a lateral extrusion force on the ball 3. Under the action of the lateral extrusion force, the ball 3 begins to extrude the lateral wall of the double-pass tube. As the extrusion continues, the lateral wall of the double-pass tube gradually deforms and eventually forms a three-way branch tube. After the three-way branch tube is formed, the cylinder 46 is started to work in reverse. Its piston rod retracts and drives the lifting seat 43 to rise. At the same time, the extrusion column 44 also rises and exits the formed three-way branch tube, preparing for the next extrusion molding operation.

[0035] Furthermore, the buffer and reset structure 6 includes a fixed cylinder 61 fixedly installed on the side of the fixed base 11 away from the semi-arc block 23, a telescopic rod 62 that passes through the fixed base 11, the channel 5 and the through hole 231 in sequence and is slidably connected inside the fixed cylinder 61, and a spring 63 sleeved on the telescopic rod 62. The two ends of the spring 63 are fixedly connected to the inside of the fixed cylinder 61 and the telescopic rod 62, respectively.

[0036] When the driving moving seat 21 moves the semi-circular block 24 closer to the semi-circular block 23 on the fixed seat 11 to clamp and fix the double-through pipe, the front end of the telescopic rod 62 in the buffer and reset structure 6 located on the side of the fixed seat 11 away from the semi-circular block 23 will first contact the double-through pipe being clamped. As the clamping force gradually increases, the telescopic rod 62 will slide inward inside the fixed cylinder 61. The spring 63 sleeved on the telescopic rod 62 has its two ends fixedly connected to the inside of the fixed cylinder 61 and the telescopic rod 62, respectively. During the process of the telescopic rod 62 sliding inward, the spring 63 will be compressed, producing elastic deformation, thereby storing elastic potential energy. This elastic deformation plays a buffering role, reducing the impact of the clamp 2 on the double-through pipe. Excessive clamping force causes deformation of the double-pass pipe. When the extrusion column 44 in the extrusion structure 4 descends and extrudes the ball 3, causing the ball 3 to compress the double-pass pipe to form a three-way branch pipe, the ball 3 will enter the channel 5 and continue to push the telescopic rod 62 to slide inward, further compressing the spring 63 and allowing the spring 63 to store more elastic potential energy. After the three-way branch pipe is formed, the extrusion column 44 is activated to rise. At this time, the elastic potential energy stored in the spring 63 is released, generating an outward elastic force, which will push the telescopic rod 62 to slide outward and reset in the fixed cylinder 61. During the reset process of the telescopic rod 62, it will push the ball 3 through the channel 5 and the through hole 231, so that the ball 3 returns to its initial position and is ready for the next processing.

[0037] In addition, to ensure contact between the telescopic rod 62 and the double-through pipe and the ball 3, a rubber pad is fixedly provided at one end of the telescopic rod 62 near the through hole 231 for contact with the surfaces of the double-through pipe and the ball 3. Due to the good elasticity and softness of the rubber pad, when the end of the telescopic rod 62 near the through hole 231 contacts the surfaces of the double-through pipe and the ball 3, the rubber pad will deform to fill the tiny gap between the telescopic rod 62 and the surfaces of the double-through pipe and the ball 3, making the contact tighter. This can further reduce the damage to the double-through pipe and the ball 3 caused by rigid contact, and also facilitate better transmission of elastic force, ensuring that the ball 3 can return to its original position smoothly, thus improving the overall performance and reliability of the mold.

[0038] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A tee forming mold, comprising a base (1), a fixing seat (11) and a mounting seat (12) fixedly disposed on the base (1), a clamp (2) disposed on the base (1) between the fixing seat (11) and the mounting seat (12) for positioning and clamping a two-way pipe, a ball (3) placed inside the two-way pipe, and an extrusion structure (4) disposed on the base (1) above the clamp (2) for causing the ball (3) to extrude the two-way pipe laterally to form a tee branch pipe; Its features are: Each of the fixed bases (11) is provided with a channel (5) that communicates with the clamp (2) for the ball (3) to pass through the side of the double-pass tube; The three-way forming mold also includes a buffer and reset structure (6) set on the fixed base (11) at the position corresponding to the channel (5) for buffering when the clamp (2) clamps the two-way pipe and for pushing the ball (3) back to its original position by elastic force after the ball (3) enters the channel (5).

2. The tee forming mold according to claim 1, characterized in that: The clamp (2) includes a movable seat (21) slidably connected to the base (1) and located between the fixed seat (11) and the mounting seat (12), a positioning post (22) fixedly installed on the movable seat (21) for positioning the double-through pipe sleeve, a semi-arc block one (23) fixedly installed on the fixed seat (11) and located on the side of the positioning post (22) on the movable seat (21), a semi-arc block two (24) fixedly installed on the movable seat (21) and located on the side of the positioning post (22) away from the semi-arc block one (23), and a cylinder one (25) fixedly installed on the mounting seat (12) and fixedly connected to the semi-arc block two (24) for moving the semi-arc block two (24) closer to or away from the semi-arc block one (23). The semi-arc block one (23) is provided with a through hole (231) communicating with the channel (5).

3. The tee forming mold according to claim 2, characterized in that: The top of the positioning post (22) is provided with an arc-shaped groove (221) for supporting the bottom of the sphere (3).

4. The tee forming mold according to claim 2, characterized in that: The extrusion structure (4) includes a fixed frame (41) fixedly installed on the base (1) and located on one side of the fixed seat (11) and the mounting seat (12), a mounting plate (42) fixedly installed on the top of the fixed frame (41), a lifting seat (43) located at the bottom of the mounting plate (42) and above the semi-circular block (23), an extrusion column (44) fixedly installed on the side of the lifting seat (43) near the semi-circular block (23) for insertion from the end of the double-pass pipe away from the positioning column (22), an inclined surface (45) fixedly installed at the bottom of the extrusion column (44) for converting the lifting motion of the extrusion column (44) into a lateral extrusion force on the sphere (3), a cylinder (46) fixedly installed on the mounting plate (42) and fixedly connected to the top of the lifting seat (43) for raising and lowering the lifting seat (43), and a guide rod (47) symmetrically fixedly connected to the lifting seat (43) and slidably connected to the mounting plate (42).

5. The tee forming mold according to claim 4, characterized in that: The buffer and reset structure (6) includes a fixed cylinder (61) fixedly installed on the side of the fixed seat (11) away from the semi-arc block (23), a telescopic rod (62) passing through the fixed seat (11), the channel (5) and the through hole (231) in sequence and slidably connected in the fixed cylinder (61), and a spring (63) sleeved on the telescopic rod (62). The two ends of the spring (63) are fixedly connected to the inside of the fixed cylinder (61) and the telescopic rod (62) respectively.

6. The tee forming mold according to claim 5, characterized in that: The telescopic rod (62) is fixedly provided with a rubber pad for contacting the surface of the double tube and the ball (3) at one end near the through hole (231).

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