A device for grinding the double ends of a bent pipe
By designing a double-end grinding device for bending pipes that can adapt to different bending angles, the problems of low efficiency and large error in grinding pipes with unconventional bending angles in the existing technology have been solved, and a highly efficient and automated grinding effect has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN HAILU HIGH PRESSURE PIPE
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-26
AI Technical Summary
Existing pipe bending and grinding machines can only fix and grind the end face of pipes with conventional bending angles. Manual grinding of non-conventional bending angles is inefficient and prone to errors.
A double-end grinding device for bent pipes was designed, comprising a fixed grinding component and a movable grinding component. Through an angle-adjustable fixing device and a rotary motor, it can adapt to bent pipes with different bending angles and realize automated double-end grinding.
It improves the grinding quality and efficiency of pipes with different bending angles, reduces errors from manual operation, and achieves highly efficient automated grinding.
Smart Images

Figure CN224274415U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe fitting production equipment, and in particular to a double-end grinding device for bent pipes. Background Technology
[0002] Pipe bends are pipe fittings that are bent using a complete set of bending equipment. According to the process, they can be divided into cold bending and hot pushing. After shaping, the excess pipe sections at both ends are cut off, and the burrs at both ends are removed by a grinding machine. Existing pipe bending grinding machines can usually only fix and grind the end faces of pipe bends with conventional bending angles (such as 45°, 90°, 135°). If the produced pipe bend has an unconventional bending angle, the end face needs to be ground manually. However, manual grinding is prone to errors and can only grind one end face at a time, which is inefficient. Utility Model Content
[0003] To overcome the shortcomings of the existing devices mentioned above, this utility model provides a double-end grinding device for bent pipes.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a double-end grinding device for bent pipes includes a fixed grinding component, which is set above a fixed base. The fixed grinding component includes a first slide rail, on which a grinding motor is slidably connected. A grinding disc is set at the movable end of the grinding motor. A telescopic rod for driving the grinding motor to move along the direction of the first slide rail is set above the fixed base. A second slide rail parallel to the telescopic rod is set on one side of the fixed base. A rotary motor is slidably connected above the second slide rail via a movable plate. A movable grinding component is driven and connected at the movable end of the rotary motor. The movable grinding component has the same structure as the fixed grinding component. An angle-adjustable fixing device is set between the movable grinding component and the fixed grinding component. In use, the angle of the fixing device is first adjusted according to the bending angle of the bent pipe, and the bent pipe is fixed. At this time, one end of the bent pipe is close to the fixed grinding component. Then, the movable grinding component is adjusted to the vicinity of the other end of the bent pipe. The rotary motor drives the grinding disc of the movable grinding component to rotate to an angle parallel to the end of the bent pipe. Finally, the telescopic rod drives the grinding disc to approach both ends of the bent pipe to complete the grinding.
[0005] Preferably, the fixing device includes a fixing clamp, which includes a fixing rod arranged parallel to the grinding disc. The fixing rod is located at the top of the support rod, and a fixing plate is fixedly connected to the end of the fixing rod. A lower groove block is provided at the bottom of the side of the fixing plate away from the fixing rod, and an upper groove block is provided directly above the lower groove block. A lead screw that cooperates with the upper groove block is provided inside the fixing plate. A rotating clamp is provided at the end of the fixing rod away from the fixing plate. The rotating clamp has a structure that is roughly the same as the fixing clamp, except that the rod connecting the fixing clamp to the support rod is a rotating rod. An inner tube is sleeved inside the rotating rod, and a locking knob is provided on one side of the rotating rod. The rotating rod is rotatably connected to the support rod. In use, according to the bending angle of the bent pipe, the rotating clamp is adjusted to a suitable angle by rotating the rod. The locking knob is loosened, and the inner tube is pulled to adjust the fixing plate, lower groove block, and upper groove block to a suitable distance. Then, the bent pipe is placed in the lower groove block, and the lead screw is turned to press the upper groove block down onto the upper surface of the bent pipe to complete the fixing.
[0006] Preferably, the fixed grinding component and the movable grinding component are located at the same height.
[0007] Preferably, the movable plate is provided with fixing screw holes at the contact point with the second slide rail and on the upper surface of the second slide rail, which are used to fix the movable plate.
[0008] The beneficial effects of this utility model are that it fixes the bent pipes with different bending angles through the fixing device, and the moving grinding component can adapt to the bent pipes with different bending angles through the second slide rail and the rotary motor, which effectively improves the grinding quality and grinding efficiency. Attached Figure Description
[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0010] Figure 1 This is a top view of the present invention;
[0011] Figure 2 This is the left view of this utility model;
[0012] Figure 3 This is a side view of the present invention when the included angle between the fixed clamping component and the movable clamping component is 180°;
[0013] Figure 4 yes Figure 2 A cross-sectional view along the AA direction;
[0014] In the diagram, 1. Fixed grinding assembly; 2. Fixed base; 3. First slide rail; 4. Grinding motor; 5. Telescopic rod; 6. Grinding disc; 7. Second slide rail; 8. Rotary motor; 9. Moving grinding assembly; 10. Fixing device; 11. Moving plate; 12. Fixing screw hole; 13. Fixing clamp; 14. Fixing rod; 15. Fixing plate; 16. Upper groove block; 17. Lead screw; 18. Rotating clamp; 19. Support rod; 20. Rotating rod; 21. Inner tube; 22. Locking knob; 23. Lower groove block. Detailed Implementation
[0015] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.
[0016] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0017] like Figure 1-4 The device for grinding the double-end face of a bent pipe shown includes a fixed grinding assembly 1, which is disposed above a fixed base 2. The fixed grinding assembly 1 includes a first slide rail 3, on which a grinding motor 4 is slidably connected. A grinding disc 6 is disposed at the movable end of the grinding motor 4. A telescopic rod 5 for driving the grinding motor 4 to move along the direction of the first slide rail 3 is disposed above the fixed base 2. A second slide rail 7 parallel to the telescopic rod 5 is disposed on one side of the fixed base 2. A rotary motor 8 is slidably connected above the second slide rail 7 via a moving plate 11. The movable end of the rotary motor 8 drives the grinding motor 4 to move along the direction of the first slide rail 3. A movable grinding component 9 is connected, and the movable grinding component 9 has the same structure as the fixed grinding component 1. An angle-adjustable fixing device 10 is provided between the movable grinding component 9 and the fixed grinding component 1. In use, the angle of the fixing device 10 is first adjusted according to the bending angle of the bent pipe, and the bent pipe is fixed. At this time, one end of the bent pipe is close to the fixed grinding component 1. Then, the movable grinding component 9 is adjusted to be near the other end of the bent pipe. The rotary motor 8 drives the grinding disc 6 of the movable grinding component 9 to rotate to an angle parallel to the end of the bent pipe. Finally, the telescopic rod 5 drives the grinding disc 6 to be close to both ends of the bent pipe to complete the grinding.
[0018] The fixing device 10 includes a fixing clamping member 13, which includes a fixing rod 14 arranged parallel to the grinding disc 6. The fixing rod 14 is located at the top of the support rod 19, and a fixing plate 15 is fixedly connected to the end of the fixing rod 14. A lower groove block 23 is provided at the bottom of the side of the fixing plate 15 away from the fixing rod 14, and an upper groove block 16 is provided directly above the lower groove block 23. A lead screw 17 that cooperates with the upper groove block 16 is provided inside the fixing plate 15. A rotating clamping member 18 is provided at the end of the fixing rod 14 away from the fixing plate 15. The rotating clamping member 18 has a structure approximately similar to that of the fixing clamping member 13. The difference lies in that the rod connecting the fixed clamping member 13 and the support rod 19 is a rotating rod 20. The rotating rod 20 is fitted with an inner tube 21, and a locking knob 22 is provided on one side of the rotating rod 20. The rotating rod 20 is rotatably connected to the support rod 19. In use, according to the bending angle of the bent pipe, the rotating clamping member 18 is adjusted to a suitable angle by rotating the rod 20. The locking knob 22 is loosened, and the inner tube 21 is pulled to adjust the fixed plate 15, the lower groove block 23 and the upper groove block 16 to a suitable distance. Then the bent pipe is placed in the lower groove block 23, and the screw 17 is turned to press the upper groove block 16 down onto the upper surface of the bent pipe to complete the fixing.
[0019] The fixed polishing component 1 and the movable polishing component 9 are located at the same height.
[0020] The movable plate 11 is fixed with screw holes 12 at the contact point with the second slide rail 7 and on the upper surface of the second slide rail 7. The movable plate 11 is fixed by the screw holes 12. Specific Implementation
[0021] Before grinding, adjust the rotating clamping member 18 to a suitable angle according to the bending angle of the bent pipe by rotating the rod 20, loosen the locking knob 22, pull the inner tube 21 to adjust the fixing plate 15, lower groove block 23 and upper groove block 16 to a suitable distance, then place the bent pipe in the lower groove block 23, turn the screw 17 to drive the upper groove block 16 to press down to the upper surface of the bent pipe to complete the fixation, then adjust the angle of the fixing device 10 according to the bending angle of the bent pipe and fix the bent pipe. At this time, one end of the bent pipe is close to the fixed grinding component 1. Then adjust the moving grinding component 9 to the vicinity of the other end of the bent pipe and fix it with bolts. The rotating motor 8 drives the grinding disc 6 of the moving grinding component 9 to rotate to an angle parallel to the end of the bent pipe. Finally, the telescopic rod 5 drives the grinding disc 6 to approach the two ends of the bent pipe. After grinding is completed, the telescopic rod 5 drives the grinding disc 6 to reset.
[0022] This design is ingenious. It uses a fixing device to fix the pipes with different bending angles, and the second slide rail and rotary motor enable the moving grinding component to adapt to pipes with different bending angles, effectively improving grinding quality and grinding efficiency.
[0023] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.
Claims
1. A bend pipe double end face polishing device, characterized by: The assembly includes a fixed grinding component (1), which is located above a fixed base (2). The fixed grinding component (1) includes a first slide rail (3), on which a grinding motor (4) is slidably connected. A grinding disc (6) is provided at the movable end of the grinding motor (4). A telescopic rod (5) is provided above the fixed base (2) to drive the grinding motor (4) to move along the direction of the first slide rail (3). A second slide rail (7) parallel to the telescopic rod (5) is provided on one side of the fixed base (2). A rotary motor (8) is slidably connected above the second slide rail (7) via a moving plate (11). A movable grinding component (9) is driven to be connected at the movable end of the rotary motor (8). The movable grinding component (9) has the same structure as the fixed grinding component (1). An angle-adjustable fixing device (10) is provided between the movable grinding component (9) and the fixed grinding component (1).
2. A device for double facing of bends according to claim 1, characterized in that: The fixing device (10) includes a fixing clamp (13), which includes a fixing rod (14) arranged parallel to the grinding disc (6). The fixing rod (14) is located at the top of the support rod (19). A fixing plate (15) is fixedly connected to the end of the fixing rod (14). A lower groove block (23) is provided at the bottom of the side of the fixing plate (15) away from the fixing rod (14). An upper groove block (16) is provided directly above the lower groove block (23). The fixing plate (15) is provided with a groove block (16) that is connected to the upper groove block (14). 16) The screw (17) used in conjunction with the fixed rod (14) is provided with a rotating clamping member (18) at the end away from the fixed plate (15). The rotating clamping member (18) and the fixed clamping member (13) have roughly the same structure. The difference is that the rod connecting the fixed clamping member (13) and the support rod (19) is a rotating rod (20). The rotating rod (20) is fitted with an inner tube (21). A locking knob (22) is provided on one side of the rotating rod (20). The rotating rod (20) is rotatably connected to the support rod (19).
3. The device of claim 1, wherein: The fixed grinding component (1) and the movable grinding component (9) are located at the same height.
4. The double-end grinding device for bent pipes according to claim 1, characterized in that: The movable plate (11) and the second slide rail (7) are fitted together with a fixing screw hole (12) on the upper surface of the second slide rail (7) to fix the movable plate (11).