Welded pipe mold for bending welded pipe
By designing the fixture and frame structure, and using a motor-driven bevel gear and cylinder to drive the lead screw and guide rod, the problems of positioning and fixture disassembly of existing welded pipe molds in different sizes are solved. This achieves stable positioning and convenient replacement of welded pipes, and improves the applicability and service life of the mold.
Patent Information
- Application Number
- CN202423243194.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing welded pipe bending dies are not easy to position welded pipes of different sizes, and the fixtures are inconvenient to disassemble and replace, which affects the service life of the dies.
The fixture adopts a two-piece clamp and frame structure. The motor drives the bevel gear to lift the lead screw, and the cylinder drives the guide rod to move, so as to achieve the positioning of the upper and lower and left and right ends of the welded pipe. The fixture can be easily installed and disassembled through threaded connection.
It achieves stable positioning of welded pipes of different sizes, facilitates the disassembly and replacement of fixtures, and improves the service life and applicability of molds.
Smart Images

Figure CN223617566U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welded pipe mold technology, specifically a welded pipe mold for bending welded pipes. Background Technology
[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the shaping of the object by changing the physical state of the material being molded. Welded pipe molds are used to process welded pipes. Welded pipe molds are typically used to hold the welded pipe in place during the processing.
[0003] Existing welded pipe bending molds have some drawbacks: First, they are not easy to position welded pipes of different sizes, resulting in poor applicability; second, they are not convenient to disassemble and replace the clamps, affecting the service life of the mold. Utility Model Content
[0004] The purpose of this utility model is to provide a welding pipe mold for bending welding pipes, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a welded pipe mold for bending welded pipes, comprising a clamp two and a frame. The clamp two is respectively disposed at the upper and lower ends of the frame. A clamping block is engaged in the clamp two, and a lead screw is rotatably connected in the clamping block. Protective chambers are provided at the upper and lower ends of the frame. A bevel gear one is rotatably connected to the inner wall of the protective chamber, and the interior of the bevel gear one is threadedly engaged with the lead screw. A bevel gear two is meshed on one side of the bevel gear one. A motor is fixed at one end inside the protective chamber, and the output end of the motor is fixedly connected to the driving end of the bevel gear two. A clearance groove is provided in the protective chamber corresponding to the lead screw. When the bevel gear two rotates, it drives the bevel gear one to rotate, which in turn drives the lead screw to rotate, thereby driving the pressure block to rise and fall. The two pressure blocks cooperate with each other, and the pressure blocks move closer or further away at the same time, which can position the upper and lower ends of the welded pipe.
[0006] Preferably, limit rods are fixed on both sides of the upper end of the second clamp, and limit seats are provided on both sides of the front end of the frame. The limit seats are slidably connected to the limit rods. The frame limits the limit rods through the limit seats, which is conducive to the stable lifting and lowering of the pressure block.
[0007] Preferably, clamps are provided on both sides of the interior of the frame, and anti-slip pads are provided on clamps one and two respectively. Anti-slip protrusions are provided on anti-slip pads one and two at equal intervals to prevent displacement of the welded pipe during clamping.
[0008] Preferably, the front and rear ends of the clamp are provided with guide rods, and one end of the guide rod is fixed with a connecting seat. A cylinder is connected between the connecting seat and one side of the frame. The cylinder extends and retracts, driving the guide rod to move, which in turn drives the clamping block to move. The two clamping blocks cooperate with each other, and the clamping blocks move closer or further away at the same time, so as to position the left and right ends of the welded pipe.
[0009] Preferably, guide rings are provided on both sides of the front end of the frame, and the guide rings are slidably connected to the guide rods. The frame limits the guide rods through the guide rings, which is conducive to the stable translation of the guide rods.
[0010] Preferably, the rear end of the first clamp is provided with a positioning block, and the front end of the positioning block is fixed with an insert rod, and the insert rod is slidably connected to the first clamp. The positioning block can be fitted to the clamp block, and then the insert rod can be passed through the clamp block so that the threaded rod protrudes from the clamp block. Then the threaded sleeve is screwed onto the threaded rod to install the clamp block.
[0011] Preferably, the rear end of the second clamp is provided with a positioning bolt, and the positioning bolt is threadedly engaged with the clamping block. The clamping block can be inserted into the pressure block, and then the positioning bolt can be pushed into the pressure block so that the positioning bolt passes through the pressure block. Finally, the threaded sleeve is screwed onto the positioning bolt to install the pressure block.
[0012] Preferably, the front end of the insertion rod is fixed with a threaded rod, and the front end of the threaded rod and the front end of the positioning bolt are respectively threaded with threaded sleeves.
[0013] Compared with the prior art, the advantages of this utility model are: it is easy to position welded pipes of different sizes, and it is convenient to disassemble and replace the clamps;
[0014] (1) Driven by the motor, the second bevel gear rotates, which drives the first bevel gear to rotate, which in turn drives the screw to rotate, thereby driving the second clamp to rise and fall. The two clamps cooperate with each other, and the clamps move closer or further away at the same time, which can position the upper and lower ends of the welded pipe. At the same time, the cylinder extends and retracts, the connecting seat moves, which drives the guide rod to move, which in turn drives the first clamp to move. The two clamps cooperate with each other, and the clamps move closer or further away at the same time, which can position the left and right ends of the welded pipe, making it easy to position welded pipes of different sizes.
[0015] (2) The card block can be inserted into the second clamp, and then the positioning bolt can be pushed into the second clamp so that the positioning bolt passes through the second clamp. Then the threaded sleeve can be screwed onto the positioning bolt to install the second clamp. After that, the positioning block can be attached to the first clamp, and then the insertion rod can be passed through the first clamp so that the threaded rod protrudes from the first clamp. Then the threaded sleeve can be screwed onto the threaded rod to install the first clamp, which is convenient for disassembling and replacing the clamp. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the rear view structure of this utility model;
[0019] Figure 4 This is a side cross-sectional view of the clamp and lead screw of this utility model.
[0020] Figure 5 This is a side view of the positioning block and threaded rod of this utility model.
[0021] In the diagram: 1. Threaded sleeve; 2. Fixture 1; 3. Fixture 2; 4. Bevel gear 1; 5. Lead screw; 6. Relief groove; 7. Bevel gear 2; 8. Motor; 9. Protective chamber; 10. Guide ring; 11. Frame; 12. Guide rod; 13. Connecting seat; 14. Cylinder; 15. Anti-slip pad 1; 16. Anti-slip pad 2; 17. Limit seat; 18. Limit rod; 19. Positioning bolt; 20. Positioning block; 21. Threaded rod; 22. Insert rod; 23. Clamping block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] Please see Figure 1-5 The present invention provides an embodiment of a welded pipe mold for bending welded pipes, comprising a clamp 2 3 and a frame 11. The clamp 2 3 is respectively disposed at the upper and lower ends inside the frame 11. A clamping block 23 is clamped in the clamp 2 3, and a lead screw 5 is rotatably connected in the clamping block 23. A protective chamber 9 is provided at both the upper and lower ends of the frame 11. A bevel gear 4 is rotatably connected to the inner wall of the protective chamber 9, and the interior of the bevel gear 4 is threadedly engaged with the lead screw 5. A bevel gear 2 7 is meshed on one side of the bevel gear 4. A motor 8 is fixed at one end inside the protective chamber 9, and the output end of the motor 8 is fixedly connected to the drive end of the bevel gear 2 7. A relief groove 6 is provided in the protective chamber 9 corresponding to the lead screw 5.
[0024] When in use, driven by motor 8, bevel gear 2 7 rotates, which drives bevel gear 1 4 to rotate, which in turn drives screw 5 to rotate, thereby driving clamp 2 3 to rise and fall. The two clamps 2 3 cooperate with each other, and clamps 2 3 move closer or further away at the same time, which can position the upper and lower ends of the welded pipe.
[0025] Limiting rods 18 are fixed on both sides of the upper end of clamp 2 3, and limiting seats 17 are provided on both sides of the front end of frame 11, and the limiting seats 17 are slidably connected to the limiting rods 18.
[0026] When in use, the frame 11 limits the limit rod 18 through the limit seat 17, which is conducive to the stable lifting and lowering of the clamp 2 3;
[0027] The frame 11 has clamps 2 on both sides inside, and anti-slip pads 15 and 26 are respectively provided on clamps 2 and clamps 3.
[0028] When in use, anti-slip pad 15 and anti-slip pad 26 are provided with several anti-slip protrusions at equal intervals to prevent displacement when the welded pipe is clamped.
[0029] The front and rear ends of the clamp 12 are provided with guide rods 12, and one end of the guide rod 12 is fixed with a connecting seat 13. A cylinder 14 is connected between the connecting seat 13 and one side of the frame 11.
[0030] When in use, the cylinder 14 extends and retracts, the connecting seat 13 moves, which drives the guide rod 12 to move, and then drives the clamp 2 to move. The two clamps 2 cooperate with each other, and the clamps 2 move closer or further away at the same time, which can position the left and right ends of the welded pipe.
[0031] Guide rings 10 are provided on both sides of the front end of the frame 11, and the guide rings 10 are slidably connected to the guide rods 12;
[0032] In use, the frame 11 limits the guide rod 12 through the guide ring 10, which helps the guide rod 12 to move stably.
[0033] The rear end of the fixture 23 is provided with a positioning bolt 19, and the positioning bolt 19 is threadedly engaged with the locking block 23;
[0034] When in use, the clip 23 can be inserted into the clamp 2 3, and the positioning bolt 19 can be pushed into the clamp 2 3 so that the positioning bolt 19 passes through the clamp 2 3. Then, the threaded sleeve 1 can be screwed onto the positioning bolt 19 to install the clamp 2 3.
[0035] The rear end of the fixture 2 is provided with a positioning block 20, and the front end of the positioning block 20 is fixed with a plug rod 22. The plug rod 22 is slidably connected to the fixture 2. The front end of the plug rod 22 is fixed with a threaded rod 21, and the front end of the threaded rod 21 and the front end of the positioning bolt 19 are respectively threaded with a threaded sleeve 1.
[0036] When in use, the positioning block 20 can be attached to the clamp 2, the insert rod 22 can be passed through the clamp 2 so that the threaded rod 21 protrudes from the clamp 2, and the threaded sleeve 1 can be screwed onto the threaded rod 21 to install the clamp 2.
[0037] In use, according to the embodiments of this application: First, the clamp 23 can be inserted into the second clamp 3, and then the positioning bolt 19 can be pushed into the second clamp 3 so that the positioning bolt 19 passes through the second clamp 3. Then, the threaded sleeve 1 can be screwed onto the positioning bolt 19 to install the second clamp 3. Next, the positioning block 20 can be fitted against the first clamp 2, and then the insertion rod 22 can be passed through the first clamp 2 so that the threaded rod 21 protrudes from the first clamp 2. Then, the threaded sleeve 1 can be screwed onto the threaded rod 21 to install the first clamp 2. Afterward, under the drive of the motor 8, the second bevel gear 7 rotates, driving the first bevel gear 4 to rotate, which in turn drives the lead screw 5 to rotate, thereby driving the second clamp 3 to rise and fall. The two clamps 2 3 cooperate with each other, and the clamps 2 3 move closer or further away at the same time, which can adjust the position of the clamp. The upper and lower ends of the welded pipe are positioned, and the frame 11 limits the limit rod 18 through the limit seat 17, which facilitates the stable lifting and lowering of the clamp 2 3. At the same time, the cylinder 14 extends and retracts, the connecting seat 13 moves, driving the guide rod 12 to move, which in turn drives the clamp 1 2 to move. The two clamps 1 2 cooperate with each other, and the clamps 1 2 move closer or further away at the same time, which can position the left and right ends of the welded pipe. In addition, the frame 11 limits the guide rod 12 through the guide ring 10, which facilitates the stable translation of the guide rod 12. Subsequently, anti-slip pad 1 15 and anti-slip pad 2 16 are provided with several anti-slip protrusions at equal intervals to prevent the welded pipe from shifting when clamped. In summary, this mold is easy to position welded pipes of different sizes and facilitates the disassembly and replacement of the clamps.
Claims
1. A welding pipe mold for bending welded pipes, characterized in that: The device includes a second clamp (3) and a frame (11). The second clamp (3) is respectively set at the upper and lower ends inside the frame (11). A clamping block (23) is clamped in the second clamp (3), and a lead screw (5) is rotatably connected in the clamping block (23). A protective chamber (9) is set at the upper and lower ends of the frame (11). A bevel gear (4) is rotatably connected to the inner wall of the protective chamber (9). The interior of the bevel gear (4) is threaded with the lead screw (5). A bevel gear (7) meshes with one side of the bevel gear (4). A motor (8) is fixed at one end inside the protective chamber (9), and the output end of the motor (8) is fixedly connected to the drive end of the bevel gear (7). A relief groove (6) is set in the protective chamber (9) corresponding to the lead screw (5).
2. The welding pipe mold for bending welding pipes according to claim 1, characterized in that: Limiting rods (18) are fixed on both sides of the upper end of the clamp (3), and limiting seats (17) are provided on both sides of the front end of the frame (11), and the limiting seats (17) are slidably connected to the limiting rods (18).
3. A welding pipe mold for bending welded pipes according to claim 1, characterized in that: The frame (11) has clamps (2) on both sides inside, and anti-slip pads (15) and (16) are respectively provided on clamps (2) and clamps (3).
4. A welding pipe mold for bending welded pipes according to claim 3, characterized in that: The clamp (2) is provided with guide rods (12) at both the front and rear ends, and a connecting seat (13) is fixed at one end of the guide rod (12). A cylinder (14) is connected between the connecting seat (13) and one side of the frame (11).
5. A welding pipe mold for bending welded pipes according to claim 4, characterized in that: Guide rings (10) are provided on both sides of the front end of the frame (11), and the guide rings (10) are slidably connected to the guide rods (12).
6. A welding pipe mold for bending welded pipes according to claim 4, characterized in that: The rear end of the clamp (2) is provided with a positioning block (20), and the front end of the positioning block (20) is fixed with a plug rod (22), and the plug rod (22) is slidably connected to the clamp (2).
7. A welding pipe mold for bending welded pipes according to claim 3, characterized in that: The rear end of the clamp 2 (3) is provided with a positioning bolt (19), and the positioning bolt (19) is threadedly engaged with the locking block (23).
8. A welding pipe mold for bending welded pipes according to claim 6, characterized in that: The front end of the insertion rod (22) is fixed with a threaded rod (21), and the front end of the threaded rod (21) and the front end of the positioning bolt (19) are respectively threaded with threaded sleeves (1).