Bent pipe burr removing device

Abstract

The utility model relates to a bent pipe burr removing device which comprises a connecting pipe, a handle is installed outside the connecting pipe, a driving mechanism is fixedly installed at the top of the connecting pipe, the bottom of the output end of the driving mechanism penetrates through the connecting pipe and is fixedly connected with a transmission rod, and the lower end of the transmission rod is connected with a grinding assembly. The transmission rod is sleeved with an adjusting ring located above the grinding assembly, and threads are arranged between the transmission rod and the adjusting ring. The grinding assembly comprises a positioning assembly fixedly connected to the bottom of the transmission rod, and the side face of the positioning assembly is movably connected with a plurality of linkage assemblies which are evenly distributed. Under the limitation of the positioning assembly, the angles of the linkage assemblies and the grinding rods at the lower ends of the linkage assemblies can be adjusted through the cooperation of the threads and the adjusting rings, and then the grinding rods can be inserted into pipelines with different diameters, so that the inner walls of the pipelines are subjected to deburring treatment.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending processing, specifically a pipe bending burr removal device. Background Technology

[0002] The exhaust pipe is part of the engine exhaust system, which mainly includes the exhaust manifold, exhaust pipe, and muffler. The three-stage catalytic converter, which controls engine pollutant emissions, is also usually installed in the exhaust system. The exhaust pipe generally includes a front exhaust pipe and a rear exhaust pipe. During the production of the exhaust pipe, burrs are prone to appear at the ends, so the exhaust pipe needs to be polished. However, existing burr removal devices on the market can usually only polish both ends and the outer surface of the bend pipe at the same time, and it is difficult to polish and remove burrs inside the bend pipe. Therefore, it is necessary to develop a bend pipe burr removal device to solve the shortcomings of the existing technology. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a device for removing burrs from bent pipes.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A burr removal device for bent pipes includes a connecting pipe, a handle is installed on the outside of the connecting pipe, a driving mechanism is fixedly installed on the top of the connecting pipe, a transmission rod is fixedly connected to the bottom of the output end of the driving mechanism through the connecting pipe, a grinding assembly is connected to the lower end of the transmission rod, an adjusting ring located above the grinding assembly is sleeved on the outside of the transmission rod, and a thread is provided between the transmission rod and the adjusting ring;

[0005] The grinding assembly includes a positioning assembly fixedly connected to the bottom of the transmission rod. Several evenly distributed linkage assemblies are movably connected to the side of the positioning assembly. The upper end of the linkage assembly is movably connected to an adjusting ring. The lower end of the linkage assembly is fixedly connected to a grinding rod. The middle part of the linkage assembly is slidably connected to the positioning assembly.

[0006] Preferably, the positioning component includes a positioning frame fixedly connected to the bottom of the transmission rod, and the side of the positioning frame is provided with a plurality of evenly distributed limiting slots, and the middle part of the linkage component is slidably engaged with the inside of the limiting slots.

[0007] Preferably, the linkage component includes a linkage frame that is slidably connected inside the limiting slot. The linkage frame has an adapter groove in the middle. A short shaft is movably inserted inside the adapter groove. Both ends of the short shaft pass through the adapter groove and are fixedly connected to the inner wall of the limiting slot.

[0008] Preferably, the upper end of the linkage frame is movably hinged to the bottom of the adjusting ring, the bottom of the linkage frame is provided with a connecting groove, a connector is movably installed inside the connecting groove, a positioning shaft is sleeved inside the connector, and the two ends of the positioning shaft are fixedly connected to the inside of the connecting groove.

[0009] Preferably, the bottom of the connector extends below the linkage frame and is fixedly connected to the top of the grinding rod, and a positioning spring is connected to the top of the connector, with the upper end of the positioning spring connected to the top of the inner cavity of the connecting groove.

[0010] Preferably, a linkage ring is movably sleeved on the outer surface of the transmission rod, and several evenly distributed support frames are hinged to the bottom of the linkage ring. A buffer spring located outside the transmission rod is provided inside the linkage ring, with the bottom of the buffer spring connected to the linkage ring and the upper end of the buffer spring connected to the bottom of the connecting pipe.

[0011] Preferably, a drive shaft is installed inside the connecting tube, the top of the drive shaft is connected to the output shaft of the drive mechanism, the lower end of the drive shaft extends to the bottom of the connecting tube and is fixedly connected to the top of the drive rod, and two positioning bearings are rotatably connected between the drive shaft and the connecting tube.

[0012] The beneficial effects of this utility model are: under the restriction of the positioning component, the angle of several linkage components and their lower grinding rods can be adjusted by the cooperation of the thread and the adjusting ring, so that several grinding rods are located on the same ring of different diameters, thereby enabling several grinding rods to be inserted into pipes of different diameters, thereby deburring the inner wall of the pipe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a front view of the present invention;

[0015] Figure 3 This is a sectional view of the front of the present invention;

[0016] Figure 4 for Figure 3 A partial schematic diagram of the connecting frame in the middle;

[0017] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle;

[0018] Figure 6 for Figure 3 A partial schematic diagram of the central linkage loop;

[0019] Figure 7 for Figure 3A partial schematic diagram of the central drive shaft.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Connecting pipe; 2. Drive mechanism; 3. Transmission rod; 4. Grinding assembly; 41. Positioning assembly; 411. Positioning frame; 412. Limiting slot; 42. Linkage assembly; 421. Linkage frame; 422. Adaptive slide; 423. Connecting slot; 424. Connector; 425. Positioning shaft; 426. Positioning spring; 43. Grinding rod; 5. Thread; 6. Adjusting ring; 7. Linkage ring; 8. Buffer spring; 9. Support frame; 10. Handle; 11. Transmission shaft; 12. Positioning bearing. Detailed Implementation

[0022] 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.

[0023] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0025] Example 1

[0026] like Figures 1 to 7As shown, a burr removal device for bent pipes includes a connecting pipe 1, a handle 10 installed on the outside of the connecting pipe 1, a drive mechanism 2 fixedly installed on the top of the connecting pipe 1, a transmission rod 3 fixedly connected to the bottom of the output end of the drive mechanism 2 through the connecting pipe 1, a grinding assembly 4 connected to the lower end of the transmission rod 3, an adjusting ring 6 located above the grinding assembly 4 sleeved on the outside of the transmission rod 3, and a thread 5 provided between the transmission rod 3 and the adjusting ring 6.

[0027] The grinding assembly 4 includes a positioning assembly 41 fixedly connected to the bottom of the transmission rod 3. Several evenly distributed linkage assemblies 42 are movably connected to the side of the positioning assembly 41. The upper end of the linkage assembly 42 is movably connected to the adjusting ring 6, and the lower end of the linkage assembly 42 is fixedly connected to a grinding rod 43. The middle part of the linkage assembly 42 is slidably connected to the positioning assembly 41. Under the constraint of the positioning assembly 41, the angle of the linkage assembly 42 and its lower grinding rod 43 can be adjusted by the cooperation of the thread 5 and the adjusting ring 6, so that the grinding rods 43 are located on the same ring of different diameters, thereby allowing the grinding rods 43 to be inserted into pipes of different diameters, thereby deburring the inner wall of the pipe.

[0028] like Figures 2 to 4 As shown, the positioning component 41 includes a positioning frame 411 fixedly connected to the bottom of the transmission rod 3. The side of the positioning frame 411 is provided with a plurality of evenly distributed limiting slots 412. The middle part of the linkage component 42 is slidably engaged with the inside of the limiting slots 412.

[0029] like Figure 4 and Figure 5 As shown, the linkage assembly 42 includes a linkage frame 421 slidably connected inside the limiting slot 412. The linkage frame 421 has an adapter groove 422 in the middle. A short shaft is movably inserted inside the adapter groove 422. Both ends of the short shaft pass through the adapter groove 422 and are fixedly connected to the inner wall of the limiting slot 412. Due to the setting of the limiting slot 412, when the upper end of the linkage frame 421 moves up and down with the adjusting ring 6, the lower end of the linkage frame 421 can move closer or further away from each other under the restriction of the limiting slot 412 and the short shaft, so that it is suitable for the treatment of burrs on the inner wall of pipes of different diameters.

[0030] like Figure 4 and Figure 5 As shown, the upper end of the linkage frame 421 is movably hinged to the bottom of the adjusting ring 6. A connecting groove 423 is provided at the bottom of the linkage frame 421. A connector 424 is movably installed inside the connecting groove 423. A positioning shaft 425 is sleeved inside the connector 424. The two ends of the positioning shaft 425 are fixedly connected to the inside of the connecting groove 423.

[0031] like Figure 5As shown, the bottom of the connector 424 extends to the lower part of the linkage frame 421 and is fixedly connected to the top of the grinding rod 43. A positioning spring 426 is connected to the top of the connector 424, and the upper end of the positioning spring 426 is connected to the top of the inner cavity of the connecting groove 423. Due to the setting of the positioning spring 426, the grinding rod 43 can maintain a certain angle with the linkage frame 421 under the restriction of the connector 424, etc. After applying different forces, the angle between the grinding rod 43 and the linkage frame 421 can be changed under the elastic action of the positioning spring 426, so that the grinding rod 43 can fit tightly against the pipe and improve the deburring efficiency.

[0032] like Figure 6 As shown, a linkage ring 7 is movably sleeved on the outer surface of the transmission rod 3. Several evenly distributed support frames 9 are hinged to the bottom of the linkage ring 7. A buffer spring 8 located outside the transmission rod 3 is installed inside the linkage ring 7. The bottom of the buffer spring 8 is connected to the linkage ring 7, and the upper end of the buffer spring 8 is connected to the bottom of the connecting pipe 1. Under the restriction of the linkage ring 7, the distance between the drive mechanism 2 and the pipe is continuously changed by the elastic restoring force of the buffer spring 8 through continuous intermittent pressing. This allows the several grinding rods 43 to move axially along the inner wall of the pipe, so as to smoothly complete the effect of continuous grinding and deburring.

[0033] like Figure 7 As shown, a drive shaft 11 is inserted inside the connecting pipe 1. The top of the drive shaft 11 is connected to the output shaft of the drive mechanism 2. The lower end of the drive shaft 11 extends to the bottom of the connecting pipe 1 and is fixedly connected to the top of the drive rod 3. Two positioning bearings 12 are rotatably connected between the drive shaft 11 and the connecting pipe 1.

[0034] Example 2

[0035] Assemble the equipment as shown in the diagram. Unfold several support frames 9 until they are perpendicular to the axis of the linkage ring 7 or transmission rod 3, etc. Then insert the transmission rod 3 and its lower grinding assembly 4 into the pipe until the support frame 9 unfolded at the bottom of the linkage ring 7 fits against the end of the pipe. Then rotate the adjusting ring 6 to push the upper end of the linkage frame 421 downward under the engagement of the thread 5. Then, under the restriction of several limiting slots 412, the matching slide groove 422 and the short shaft, the linkage frame 421 drives the several grinding rods 43 corresponding to its lower end to gradually move away from each other. When the bottom of the grinding rod 43 touches the inner wall of the pipe, continue to rotate the adjusting ring 6 to engage the positioning shaft 425. The grinding rod 43 and the connector 424 swing relative to the linkage frame 421 when the lowering is closed, and the positioning spring 426 is pulled to increase its elastic restoring force until the grinding rod 43 is completely attached to the inner wall of the pipe. Then, the drive mechanism 2 is turned on, and the grinding assembly 4 is rotated through the transmission shaft 11 and the transmission rod 3, so that several grinding rods 43 grind and remove burrs along the inner wall of the pipe. At the same time, the drive mechanism 2 is pressed continuously and intermittently to change the distance between it and the pipe. Under the restriction of the support frame 9 and the elastic restoring force of the buffer spring 8, several grinding rods 43 can reciprocate along the inner axis of the pipe to complete the continuous grinding and burr removal.

[0036] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0037] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A device for removing burrs from bent pipes, comprising a connecting pipe (1), wherein a handle (10) is mounted on the outside of the connecting pipe (1), characterized in that: A drive mechanism (2) is fixedly installed on the top of the connecting pipe (1). The bottom of the output end of the drive mechanism (2) passes through the connecting pipe (1) and is fixedly connected to a transmission rod (3). The lower end of the transmission rod (3) is connected to a grinding assembly (4). An adjustment ring (6) is sleeved on the outside of the transmission rod (3) and located above the grinding assembly (4). A thread (5) is provided between the transmission rod (3) and the adjustment ring (6). The grinding assembly (4) includes a positioning assembly (41) fixedly connected to the bottom of the transmission rod (3). The side of the positioning assembly (41) is movably connected to a plurality of evenly distributed linkage assemblies (42). The upper end of the linkage assembly (42) is movably connected to the adjusting ring (6). The lower end of the linkage assembly (42) is fixedly connected to the grinding rod (43). The middle part of the linkage assembly (42) is slidably connected to the positioning assembly (41).

2. The burr removal device for bent pipes according to claim 1, characterized in that: The positioning component (41) includes a positioning frame (411) fixedly connected to the bottom of the transmission rod (3). The side of the positioning frame (411) is provided with a plurality of evenly distributed limiting slots (412). The middle part of the linkage component (42) is slidably engaged with the inside of the limiting slots (412).

3. The burr removal device for bent pipes according to claim 2, characterized in that: The linkage component (42) includes a linkage frame (421) that is slidably connected inside the limiting slot (412). The linkage frame (421) has an adapter groove (422) in the middle. A short shaft is movably inserted inside the adapter groove (422). Both ends of the short shaft pass through the adapter groove (422) and are fixedly connected to the inner wall of the limiting slot (412).

4. The burr removal device for bent pipes according to claim 3, characterized in that: The upper end of the linkage frame (421) is movably hinged to the bottom of the adjusting ring (6). A connecting groove (423) is provided at the bottom of the linkage frame (421). A connector (424) is movably installed inside the connecting groove (423). A positioning shaft (425) is sleeved inside the connector (424). Both ends of the positioning shaft (425) are fixedly connected to the inside of the connecting groove (423).

5. The burr removal device for bent pipes according to claim 4, characterized in that: The bottom of the connector (424) extends below the linkage frame (421) and is fixedly connected to the top of the grinding rod (43). A positioning spring (426) is connected to the top of the connector (424), and the upper end of the positioning spring (426) is connected to the top of the inner cavity of the connecting groove (423).

6. The burr removal device for bent pipes according to claim 1, characterized in that: The outer surface of the transmission rod (3) is movably fitted with a linkage ring (7). The bottom of the linkage ring (7) is hinged with several evenly distributed support frames (9). The inside of the linkage ring (7) is provided with a buffer spring (8) located outside the transmission rod (3). The bottom of the buffer spring (8) is connected to the linkage ring (7), and the upper end of the buffer spring (8) is connected to the bottom of the connecting pipe (1).

7. The burr removal device for bent pipes according to claim 1, characterized in that: A drive shaft (11) is inserted inside the connecting pipe (1). The top of the drive shaft (11) is connected to the output shaft of the drive mechanism (2). The lower end of the drive shaft (11) extends to the bottom of the connecting pipe (1) and is fixedly connected to the top of the drive rod (3). Two positioning bearings (12) are rotatably connected between the drive shaft (11) and the connecting pipe (1).

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