Elbow polishing device

By designing an adjustable grinding wheel installation angle bending tube grinding device, the problem of the non-adjustable grinding wheel angle in existing electric grinding machines has been solved, improving the operator's comfort.

CN224073962UActive Publication Date: 2026-04-03宁波荣海汽车部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2026-04-03

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Abstract

The utility model discloses a bent pipe polishing device which comprises a handle shell, a motor inner core is fixedly connected in the handle shell, an adjusting shell is assembled at the upper end of the handle shell, a meshing lateral output shaft matched with the output end of the motor inner core is assembled in the adjusting shell, and a front end adjusting output shaft is assembled on the meshing lateral output shaft. When the pipe bending machine is used, the grinding wheel is selected to be installed on the grinding wheel fixing base on the meshing lateral output shaft or the grinding wheel fixing base on the front end adjusting output shaft according to the use requirement, and then the motor inner core electrically connected with an external power source can be started to drive the grinding wheel to rotate so as to conduct pipe bending, polishing and rust removing. The nut can be loosened, the top plate cannot extrude the round top shell, at the moment, the arc-shaped inner plate and the sleeve can be rotated, the angle between the top end shaft rod and the handle shell can be adjusted, and therefore the function of adjusting the grinding wheel installation angle according to the using habits of operators is achieved, and the using comfort level of different operators is improved.
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Description

Technical Field

[0001] This utility model relates to the field of polishing tools, specifically a curved tube polishing device. Background Technology

[0002] During pipe bending production, the outer surface of the blank used for bending pipes is usually covered with a lot of rust. In order to improve the appearance or subsequent painting, the rust on the surface of the pipe needs to be polished after bending pipe production. Currently, electric grinding wheels are usually used to polish the rust on bent pipes. However, the installation angle of the current electric grinding wheels cannot be adjusted, making it difficult to meet the needs of different operators for a suitable grip. To address the above problems, a pipe bending polishing device is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a pipe bending and grinding device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipe bending and grinding device, including a handle shell, a motor core fixedly connected inside the handle shell, an adjustment shell mounted on the upper end of the handle shell, a meshing lateral output shaft that cooperates with the output end of the motor core mounted inside the adjustment shell, a front adjustment output shaft mounted on the meshing lateral output shaft, and the front adjustment output shaft cooperating with the adjustment shell.

[0005] The adjustment shell includes a circular top shell, the lower end of which is fixedly connected to a base, and the base is fixedly connected to the upper end of the handle shell. An adjustment clearance groove is provided in the middle of the circular top shell.

[0006] The meshing lateral output shaft includes a shaft rod, which is rotatably connected to a circular top shell. A gear disc located inside the circular top shell is fixedly connected to the outer wall of the shaft rod. A first bevel gear meshes with the outer wall of the gear disc. The first bevel gear is fixedly connected to the output end of the motor core. One end of the shaft rod extends out of the outer surface of the circular top shell and is integrally formed with a grinding wheel fixing seat.

[0007] The front-end adjustable output shaft includes an arc-shaped inner plate located inside a circular top shell. A sleeve is integrally formed in the middle of the arc-shaped inner plate. The upper end of the outer wall of the sleeve is threaded. A flange is integrally formed at the lower end of the sleeve located at the arc-shaped inner plate. A flange bearing sleeve is fixedly connected to the lower end of the flange. A bearing is sleeved inside the flange bearing sleeve. A top shaft is sleeved inside the bearing. A second bevel gear is fixedly connected to the lower end of the outer wall of the top shaft. The second bevel gear's rain gear discs mesh together. A grinding wheel fixing seat is fixedly connected to the upper end of the top shaft extending to the upper end of the sleeve. The sleeve is fitted into an adjusting relief groove, and a top plate is sleeved at the upper end of the sleeve. A nut is screwed onto the outer wall of the thread, and the nut is pressed together with the top plate.

[0008] The outer wall of the dome shell is integrally formed with a threaded ring that fits into the lateral grinding wheel fixing seat, and a protective cover that fits into the grinding wheel fixing seat is screwed onto the threaded ring.

[0009] The beneficial effects of this utility model are:

[0010] When using this utility model, depending on the usage requirements, the grinding wheel can be installed on the grinding wheel fixing seat on the meshing side output shaft or on the grinding wheel fixing seat on the front adjusting output shaft. Then, the motor core connected to the external power supply can be started to drive the grinding wheel to rotate and perform bending, grinding and rust removal on the pipe.

[0011] When using the front-end adjustment output shaft, the nut can be loosened so that the top plate will not squeeze the circular top shell. At this time, the arc-shaped inner plate and sleeve can be rotated to adjust the angle between the top shaft and the handle shell. After adjustment, the nut can be tightened. This realizes the function of adjusting the grinding wheel installation angle according to the operator's usage habits, increasing the comfort of different operators. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a disassembled internal view of the present invention;

[0014] Figure 3 This is a partial structural disassembly diagram of the present invention.

[0015] In the diagram: 1. Handle housing; 2. Motor inner core; 3. Adjustment housing; 3. Circular top shell; 31. Base; 32. Adjustment clearance groove; 33. Meshing side output shaft; 4. Shaft; 41. Gear plate; 42. First bevel gear; 43. Front adjustment output shaft; 5. Arc-shaped inner plate; 51. Sleeve; 52. Thread; 53. Flange; 54. Flange bearing sleeve; 55. Bearing; 56. Top shaft; 57. Second bevel gear; 58. Top plate; 59. Nut; 510. Grinding wheel fixing seat; 6. Threaded ring; 7. Protective cover; 8. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a pipe bending and grinding device, including a handle shell 1, a motor core 2 fixedly connected inside the handle shell 1, an adjustment shell 3 mounted on the upper end of the handle shell 1, a meshing side output shaft 4 that cooperates with the output end of the motor core 2 mounted inside the adjustment shell 3, a front end adjustment output shaft 5 mounted on the meshing side output shaft 4, and the front end adjustment output shaft 5 cooperating with the adjustment shell 3.

[0018] Specifically, the adjustment shell 3 includes a circular top shell 31, a base 32 is fixedly connected to the lower end of the circular top shell 31, the base 32 is fixedly connected to the upper end of the handle shell 1, and an adjustment clearance groove 33 is provided in the middle of the circular top shell 31.

[0019] Specifically, the meshing side output shaft 4 includes a shaft 41, which is rotatably connected to a circular top shell 31. A gear disk 42 located inside the circular top shell 31 is fixedly connected to the outer wall of the shaft 41. A first bevel gear 43 meshes with the outer wall of the gear disk 42. The first bevel gear 43 is fixedly connected to the output end of the motor core 2. One end of the shaft 41 extends out of the circular top shell 31 and is integrally formed with a grinding wheel fixing seat 6.

[0020] Specifically, the front-end adjustment output shaft 5 includes an arc-shaped inner plate 51 located inside the circular top shell 31. A sleeve 52 is integrally formed in the middle of the arc-shaped inner plate 51. A thread 53 is provided on the upper end of the outer side wall of the sleeve 52. A flange 54 is integrally formed at the lower end of the arc-shaped inner plate 51. A flange bearing sleeve 55 is fixedly connected to the lower end of the flange 54. A bearing 56 is sleeved inside the flange bearing sleeve 55. A top shaft 57 is sleeved inside the bearing 56. A second bevel gear 58 is fixedly connected to the lower end of the outer side wall of the top shaft 57. The second bevel gear 58 meshes with the gear disc 42. A grinding wheel fixing seat 6 is fixedly connected to the upper end of the sleeve 52. The sleeve 52 is sleeved in the adjustment relief groove 33, and a top plate 59 is sleeved on the upper end of the sleeve 52. A nut 510 is screwed onto the outer side wall of the thread 53. The nut 510 is pressed together with the top plate 59.

[0021] Specifically, the outer wall of the circular top shell 31 is integrally formed with a threaded ring 7 that is sleeved with the lateral grinding wheel fixing seat 6, and a protective cover 8 that is sleeved with the grinding wheel fixing seat 6 is screwed onto the threaded ring 7.

[0022] Working principle: When using this utility model, depending on the usage requirements, the grinding wheel can be installed on the grinding wheel fixing seat 6 on the meshing side output shaft 4 or on the grinding wheel fixing seat 6 on the front adjusting output shaft 5. Then, the motor core 2, which is electrically connected to the external power supply, can be started to drive the grinding wheel to rotate and perform bending, grinding and rust removal.

[0023] When using the front-end adjustment output shaft 5, the nut 510 can be loosened so that the top plate 59 will not squeeze the circular top shell 31. At this time, the arc-shaped inner plate 51 and the sleeve 52 can be rotated to adjust the angle between the top shaft 57 and the handle shell 1. After the adjustment is completed, the nut 510 can be tightened. This realizes the function of adjusting the grinding wheel installation angle according to the operator's usage habits, increasing the comfort of different operators.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe bending and grinding device, comprising a handle housing (1), characterized in that: The handle housing (1) is fixedly connected to the motor core (2). The upper end of the handle housing (1) is equipped with an adjustment housing (3). The adjustment housing (3) is equipped with a meshing side output shaft (4) that cooperates with the output end of the motor core (2). The meshing side output shaft (4) is equipped with a front adjustment output shaft (5). The front adjustment output shaft (5) cooperates with the adjustment housing (3).

2. The pipe bending and grinding device according to claim 1, characterized in that: The adjusting shell (3) includes a circular top shell (31), and a base (32) is fixedly connected to the lower end of the circular top shell (31). The base (32) is fixedly connected to the upper end of the handle shell (1). An adjusting clearance groove (33) is provided in the middle of the circular top shell (31).

3. The pipe bending and grinding device according to claim 2, characterized in that: The meshing lateral output shaft (4) includes a shaft (41), which is rotatably connected to a circular top shell (31). A gear disc (42) located inside the circular top shell (31) is fixedly connected to the outer side wall of the shaft (41). A first bevel gear (43) meshes with the outer side wall of the gear disc (42). The first bevel gear (43) is fixedly connected to the output end of the motor core (2). One end of the shaft (41) extends out of the circular top shell (31) and is integrally formed with a grinding wheel fixing seat (6).

4. The pipe bending and grinding device according to claim 3, characterized in that: The front-end adjustable output shaft (5) includes an arc-shaped inner plate (51), which is located inside the circular top shell (31). A sleeve (52) is integrally formed in the middle of the arc-shaped inner plate (51). A thread (53) is provided on the upper end of the outer side wall of the sleeve (52). A flange (54) is integrally formed at the lower end of the sleeve (52) and the lower end of the arc-shaped inner plate (51). A flange bearing sleeve (55) is fixedly connected to the lower end of the flange (54). A bearing (56) is sleeved inside the flange bearing sleeve (55). The bearing (56) is sleeved inside the bearing (56). A top shaft (57) is connected, and a second bevel gear (58) is fixedly connected to the lower end of the outer side wall of the top shaft (57). The second bevel gear (58) meshes with the gear disc (42). The upper end of the top shaft (57) extends to the upper end of the sleeve (52) and is fixedly connected to a grinding wheel fixing seat (6). The sleeve (52) is fitted into the adjusting relief groove (33), and a top plate (59) is fitted to the upper end of the sleeve (52). A nut (510) is screwed to the outer side wall of the thread (53), and the nut (510) is pressed together with the top plate (59).

5. The pipe bending and grinding device according to claim 4, characterized in that: The outer wall of the circular top shell (31) is integrally formed with a threaded ring (7) that is sleeved with the lateral grinding wheel fixing seat (6), and a protective cover (8) that is sleeved with the grinding wheel fixing seat (6) is screwed onto the threaded ring (7).