A double carding and pipe end forming machine flaring die

CN224372605UActive Publication Date: 2026-06-19SICHUAN LONGLIKE STAINLESS STEEL PIPE IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN LONGLIKE STAINLESS STEEL PIPE IND CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-19

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Abstract

This utility model relates to the field of flaring mold technology and discloses a flaring mold for a double-clamping tube end forming machine. It includes a mounting frame, with multiple storage slots at the front end of the upper surface of the mounting frame. A servo motor is fixedly connected to the middle of the inner wall of the rear end of each storage slot. A screw is fixedly connected to the output end of the servo motor, and a stop plate is threadedly connected to the shaft of the screw. A protective shell is fixedly connected to the rear end of the upper surface of the mounting frame. Two screws are rotatably connected to both sides of the mounting frame near the outer wall of the protective shell. Threaded sleeves are fitted onto the middle of the shafts of the two screws, and a positioning seat is fixedly connected to the outer wall of the adjacent side of each threaded sleeve. In this utility model, when the flaring mold for a double-clamping tube end forming machine is used, starting the servo motor drives the screw to rotate, simultaneously causing its stop plate to move laterally. This allows the screw to continuously approach and abut against the tube blank, preventing displacement of the tube blank due to the lateral force generated during flaring.
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Description

Technical Field

[0001] This utility model relates to the field of flaring mold technology, and in particular to a flaring mold for a double-clamp tube end forming machine. Background Technology

[0002] As is well known, the flaring mold of the double-clamp pipe end forming machine is a professional tool used for pipe processing. It is mainly used to flare the ends of metal pipes (such as stainless steel pipes, copper pipes, etc.) for subsequent connection or assembly.

[0003] However, in traditional double-clamp tube end forming machines, the tube blank may shift or wobble during the flaring process, resulting in deviations in the flaring position. This affects the dimensional accuracy and consistency of the double-clamp tube. Inaccurate flaring position may prevent the double-clamp tube from properly fitting with other components during installation, reducing the sealing and stability of the connection. Therefore, technical improvements are urgently needed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a flaring mold for a double-clamp tube end forming machine. When the double-clamp tube end forming machine flaring mold is used, the servo motor drives the screw to rotate and at the same time drives its abutment plate to move laterally. It can continuously approach the tube blank and abut against it, which can prevent the lateral force generated by flaring from causing the tube blank to shift.

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

[0006] A flaring mold for a double-clamp tube end forming machine includes a mounting frame. Multiple storage slots are provided at the front end of the upper surface of the mounting frame. A servo motor is fixedly connected to the middle of the inner wall of the rear end of each storage slot. A screw is fixedly connected to the output end of the servo motor. A stop plate is threadedly connected to the shaft of the screw. A protective shell is fixedly connected to the rear end of the upper surface of the mounting frame. Two screws are rotatably connected to both sides of the mounting frame near the outer wall of the protective shell. Threaded sleeve blocks are fitted onto the middle of the shafts of the two screws. A positioning seat is fixedly connected to the outer wall of the adjacent side of each threaded sleeve block.

[0007] A second servo motor is fixedly connected to one side of the top surface of the protective shell. The output end of the second servo motor is fixedly connected to the upper end of a first screw on one side. A transmission wheel is sleeved on the upper end of the body of the first screw on both sides. A synchronous belt is sleeved on the outer wall of the transmission wheel. Multiple snap-fit ​​grooves are opened on the lower surface of the positioning seat. A placement groove is opened on the top surface of each snap-fit ​​groove. Multiple return springs are fixedly connected to the top of each placement groove. A limit plate is fixedly connected to the lower end of each return spring.

[0008] Compared with the existing double-clamp tube end forming machine flaring mold, the above technical solution, when used, drives the servo motor to rotate the screw on one side, which in turn drives the transmission wheels and synchronous belt on both sides to rotate. This causes the positioning seat to move closer to the upper end of the tube blank, and the abutment to move closer to the outer wall of the tube blank. With the help of the reset spring, the tube blank is compressed, which effectively prevents the tube blank from shaking or shifting. It has high practical performance.

[0009] Furthermore, a PLC control panel is provided on the front end of one side of the outer wall of the mounting bracket;

[0010] The above technical solution allows for electrical connection between the PLC control panel and servo motor one, servo motor two, and cylinder, facilitating their switching.

[0011] Furthermore, the mounting bracket has multiple abutment grooves at the bottom near the positioning seat, and a tube blank is placed on the upper surface of each abutment groove;

[0012] The above technical solution facilitates the placement of the tube blank that needs to be flared by using the groove.

[0013] Furthermore, a mounting groove is provided at the lower part of the inner wall of the rear end of the mounting bracket, a cylinder is fixedly connected to the middle part of the inner wall of the rear end of the mounting groove, a mounting plate is fixedly connected to the output end of the cylinder, and multiple expansion heads are fixedly connected to the front end of the mounting plate.

[0014] The above technical solution allows the cylinder to easily drive the mounting plate and the flaring head to flare the head of the tube blank.

[0015] Furthermore, telescopic rods are fixedly connected to both sides of the rear end of the inner wall of the mounting groove, and the front ends of the telescopic rods are fixedly connected to the rear end of the outer wall of the mounting plate, respectively.

[0016] The above technical solution allows for easy extension and retraction of the telescopic rod in conjunction with the mounting plate.

[0017] Furthermore, guide rods are fixedly connected to the front and rear ends of the inner walls of the storage slots on both sides, and the guide rods penetrate the abutment plate.

[0018] The above technical solution improves the stability of the plate movement by using a guide rod.

[0019] Furthermore, guide rods 2 are fixedly connected to both ends of the mounting bracket near screw 2, and each guide rod 2 passes through the threaded sleeve blocks on both sides;

[0020] The above technical solution improves the stability of the threaded sleeve block's movement through the guide rod two.

[0021] Furthermore, limit grooves are provided on both sides of the inner wall of the placement groove, and limit blocks are fixedly connected to both sides of the upper surface of the limit plate, and the limit blocks are slidably connected to the inner wall of the limit groove respectively.

[0022] With the above technical solution, the limiting blocks are slidably connected to the inner wall of the limiting groove, which facilitates the limiting of the limiting plate and prevents the reset spring from shifting during its movement.

[0023] This utility model has the following beneficial effects:

[0024] 1. The present invention proposes a flaring mold for a double-clamping tube end forming machine. Compared with the existing flaring molds for double-clamping tube end forming machines, when the flaring mold for a double-clamping tube end forming machine is used, the servo motor is started to drive the screw to rotate, and at the same time, the abutment plate moves laterally. It can continuously approach the tube blank and abut against it, which can prevent the lateral force generated by flaring from causing displacement of the tube blank.

[0025] 2. The flaring mold for a double-clamp tube end forming machine proposed in this utility model, compared with the existing flaring mold for double-clamp tube end forming machines, when in use, drives the screw on one side to rotate by starting the servo motor two, which in turn drives the transmission wheels on both sides and the synchronous belt to rotate. As a result, the positioning seat moves closer and closer to the upper end of the tube blank, and the abutment plate moves closer and closer to the outer wall of the tube blank. With the help of the return spring, compression is performed, which effectively prevents the tube blank from shaking or shifting. It has high practical performance. Attached Figure Description

[0026] Figure 1 For axonometric drawing;

[0027] Figure 2 This is a schematic diagram of the expansion head;

[0028] Figure 3 This is an isometric schematic diagram;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0031] Figure 6 This is a schematic diagram of the axial section of the positioning seat;

[0032] Figure 7 for Figure 6 Enlarged view of point C in the middle.

[0033] Legend:

[0034] 1. Mounting bracket; 11. PLC control panel; 12. Abutment groove; 13. Tube blank; 14. Mounting groove; 15. Cylinder; 16. Mounting plate; 17. Telescopic rod; 18. Expanding head; 2. Storage groove; 21. Servo motor one; 22. Screw one; 23. Guide rod one; 24. Abutment plate; 3. Protective shell; 31. Servo motor two; 32. Screw two; 33. Guide rod two; 34. Transmission wheel; 35. Synchronous belt; 36. Threaded sleeve block; 37. Positioning seat; 38. Snap-fit ​​groove; 39. Placement groove; 310. Return spring; 311. Limiting plate; 312. Limiting groove; 313. Limiting block. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figure 1-7 An embodiment of this utility model provides: a flaring mold for a double-clamp tube end forming machine, including a mounting frame 1. The front end of the upper surface of the mounting frame 1 is provided with multiple storage slots 2. The middle of the inner wall of the rear end of the middle storage slot 2 is fixedly connected to a servo motor 21. The output end of the servo motor 21 is fixedly connected to a screw 22. The body of the screw 22 is threadedly connected to a stop plate 24. The rear end of the upper surface of the mounting frame 1 is fixedly connected to a protective shell 3. The two sides of the mounting frame 1 near the outer wall of the protective shell 3 are rotatably connected to screws 32. The middle of the body of the screws 32 is fitted with threaded sleeve blocks 36. The outer wall of the adjacent side of the threaded sleeve blocks 36 is fixedly connected to a positioning seat 37.

[0037] A servo motor 2 31 is fixedly connected to one side of the top surface of the protective shell 3. The output end of the servo motor 2 31 is fixedly connected to the upper end of the screw 1 22 on one side. A transmission wheel 34 is sleeved on the upper end of the shaft of the screw 1 22 on both sides. A synchronous belt 35 is sleeved on the outer wall of the transmission wheel 34. Multiple snap-fit ​​grooves 38 are opened on the lower surface of the positioning seat 37. A placement groove 39 is opened on the top surface of the snap-fit ​​groove 38. Multiple return springs 310 are fixedly connected to the top of the placement groove 39. A limit plate 311 is fixedly connected to the lower end of the return spring 310.

[0038] Compared with the existing double-clamp tube end forming machine flaring mold, when this double-clamp tube end forming machine flaring mold is used, the servo motor 31 drives the screw 32 on one side to rotate, which in turn drives the transmission wheels 34 on both sides and the synchronous belt 35 to rotate. This causes the positioning seat 37 to move closer and closer to the upper end of the tube blank 13, and the abutment plate 24 to move closer and closer to the outer wall of the tube blank 13. With the help of the return spring 310, the tube blank 13 is compressed, which effectively prevents the tube blank 13 from shaking or shifting. It has higher practical performance.

[0039] A PLC control panel 11 is provided at the front end of one side outer wall of the mounting bracket 1;

[0040] The PLC control panel 11 is electrically connected to servo motor 21, servo motor 31 and cylinder 15 respectively, so as to facilitate the control of their switching.

[0041] Multiple abutment grooves 12 are provided at the bottom of the mounting bracket 1 near the positioning seat 37, and tube blanks 13 are placed on the upper surface of the abutment grooves 12.

[0042] The groove 12 facilitates the placement of the tube blank 13 that needs to be flared.

[0043] The lower part of the inner wall of the rear end of the mounting bracket 1 is provided with a mounting groove 14. A cylinder 15 is fixedly connected to the middle of the inner wall of the rear end of the mounting groove 14. A mounting plate 16 is fixedly connected to the output end of the cylinder 15. Multiple expansion heads 18 are fixedly connected to the front end of the mounting plate 16.

[0044] The cylinder 15 facilitates the movement of the mounting plate 16 and the flaring head 18, which flares the head of the tube blank 13.

[0045] Telescopic rods 17 are fixedly connected to both sides of the rear end of the inner wall of the mounting groove 14, and the front ends of the telescopic rods 17 are fixedly connected to the rear end of the outer wall of the mounting plate 16 respectively.

[0046] The telescopic rod 17 facilitates telescopic movement in conjunction with the mounting plate 16.

[0047] Guide rods 23 are fixedly connected to the front and rear ends of the inner walls of the two side storage slots 2, and the guide rods 23 penetrate the abutment plate 24.

[0048] The guide rod 23 facilitates the improvement of the stability of the movement of the stop plate 24.

[0049] Both ends of the mounting bracket 1 near the screw 32 are fixedly connected to guide rods 33, and the guide rods 33 pass through the threaded sleeves 36 on both sides respectively.

[0050] The guide rod 33 facilitates the improvement of the stability of the movement of the threaded sleeve 36.

[0051] Limiting grooves 312 are provided on both sides of the inner wall of the placement groove 39, and limiting blocks 313 are fixedly connected to both sides of the upper surface of the limiting plate 311. The limiting blocks 313 are slidably connected to the inner wall of the limiting groove 312 respectively.

[0052] The limiting blocks 313 are all slidably connected to the inner wall of the limiting groove 312, which facilitates the limiting plate 311 to be limited and prevents the reset spring 310 from deviating during the movement.

[0053] Working principle: When in use, the tube blank 13 is first placed on the groove 12 of the mounting bracket 1. The servo motor 31 is started, which drives the screw 32 on one side to rotate. Through the transmission wheel 34 and the synchronous belt 35, the screws 32 on both sides rotate synchronously, driving the threaded sleeve block 36 and the positioning seat 37 to approach the upper end of the tube blank 13. The limiting plate 311 contacts the upper end of the tube blank 13 under the action of the return spring 310 and compresses the spring to prevent the tube blank 13 from shaking and shifting. After positioning is completed, the servo motor 21 is started at the same time through the PLC control panel 11, which drives the screw 22 to rotate, so that the abutment plate 24 moves laterally and presses against the outer wall of the tube blank 13 to prevent the tube blank 13 from shifting due to the lateral force of the flaring. The PLC control panel 11 starts the cylinder 15 to push the mounting plate 16 and the flaring head 18 to move, flaring the head of the tube blank 13.

[0054] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flaring die for a double-wall tube end forming machine, comprising a mounting frame (1), characterized in that: The front end of the upper surface of the mounting bracket (1) is provided with multiple storage slots (2). The middle of the inner wall of the rear end of the storage slot (2) is fixedly connected to a servo motor (21). The output end of the servo motor (21) is fixedly connected to a screw (22). The rod body of the screw (22) is threadedly connected to a stop plate (24). The rear end of the upper surface of the mounting bracket (1) is fixedly connected to a protective shell (3). The two sides of the mounting bracket (1) near the outer wall of the protective shell (3) are rotatably connected to screws (32). The middle of the rod body of screws (32) is fitted with threaded sleeves (36). The outer wall of the adjacent side of the threaded sleeves (36) is fixedly connected to a positioning seat (37). A servo motor 2 (31) is fixedly connected to one side of the top surface of the protective shell (3). The output end of the servo motor 2 (31) is fixedly connected to the upper end of the screw 1 (22) on one side. A transmission wheel (34) is sleeved on the upper end of the screw 1 (22) on both sides. A synchronous belt (35) is sleeved on the outer wall of the transmission wheel (34). A plurality of snap-fit ​​grooves (38) are opened on the lower surface of the positioning seat (37). A placement groove (39) is opened on the top surface of the snap-fit ​​groove (38). A plurality of return springs (310) are fixedly connected to the top of the placement groove (39). A limit plate (311) is fixedly connected to the lower end of the return spring (310).

2. A flaring die for a double-wall pipe end forming machine as defined in claim 1, wherein: A PLC control panel (11) is provided at the front end of one side of the outer wall of the mounting bracket (1).

3. The flaring mold for a double-clamp tube end forming machine according to claim 1, characterized in that: The mounting bracket (1) has multiple abutment grooves (12) at the bottom near the positioning seat (37), and a tube blank (13) is placed on the upper surface of each abutment groove (12).

4. The flaring mold for a double-clamp tube end forming machine according to claim 1, characterized in that: The lower part of the inner wall of the rear end of the mounting bracket (1) is provided with a mounting groove (14). A cylinder (15) is fixedly connected to the middle part of the inner wall of the rear end of the mounting groove (14). A mounting plate (16) is fixedly connected to the output end of the cylinder (15). Multiple expansion heads (18) are fixedly connected to the front end of the mounting plate (16).

5. The flaring mold for a double-clamp tube end forming machine according to claim 4, characterized in that: Telescopic rods (17) are fixedly connected to both sides of the rear end of the inner wall of the mounting groove (14), and the front ends of the telescopic rods (17) are fixedly connected to the rear end of the outer wall of the mounting plate (16).

6. The flaring mold for a double-clamp tube end forming machine according to claim 1, characterized in that: The front and rear ends of the inner walls of the storage slots (2) on both sides are fixedly connected with guide rods (23), and the guide rods (23) penetrate the abutment plate (24).

7. The flaring mold for a double-clamp tube end forming machine according to claim 1, characterized in that: The mounting bracket (1) is fixedly connected to guide rods (33) at both ends near the screw (32), and the guide rods (33) pass through the threaded sleeves (36) on both sides respectively.

8. The flaring mold for a double-clamp tube end forming machine according to claim 1, characterized in that: Limiting grooves (312) are provided on both sides of the inner wall of the placement groove (39), and limiting blocks (313) are fixedly connected to both sides of the upper surface of the limiting plate (311). The limiting blocks (313) are slidably connected to the inner wall of the limiting groove (312).