Automatic polishing force control device for inner wall of round pipe

Abstract

The utility model belongs to the technical field of polishing of circular tube inner wall, especially a kind of automatic polishing force control device of circular tube inner wall, including riser, the left side wall of riser is fixed with base, drive mechanism is installed on the base, the top end middle bearing of riser is installed with spin sleeve, and the left end outside of spin sleeve is fixed with second bevel gear;L-shaped plate, the horizontal section of L-shaped plate is through riser and is slidably connected with it, the vertical section middle bearing of L-shaped plate is installed with cross pipe, and the right end outer wall of cross pipe is symmetrically equipped with convex part, and convex part is slidably connected with spin sleeve, and the left end outer wall of cross pipe is symmetrically set with sliding slot.

Description

Technical Field

[0001] This utility model belongs to the field of grinding technology for the inner wall of round tubes, and in particular relates to an automatic grinding force control device for the inner wall of round tubes. Background Technology

[0002] In fields such as petrochemicals, water supply and drainage, and machinery manufacturing, circular pipes serve as core components for transporting media or structural parts. The smoothness of their inner walls directly affects the efficiency of media transport, the service life of the pipeline, and the accuracy of subsequent assembly. For example, residual burrs or unevenness on the inner wall can easily lead to media stagnation, accelerated corrosion, or affect the fit between the seals and the pipe wall. Therefore, it is necessary to use grinding equipment to treat the inner wall of circular pipes.

[0003] Existing grinding devices for the inner walls of circular tubes still have some defects and shortcomings: the degree of automation is low, the motion coordination of the grinding mechanisms is insufficient, and most grinding mechanisms can only realize the rotational grinding action of the grinding head, making it difficult to move along the axis of the circular tube to cover different areas. This results in insufficient grinding of the inner wall of the circular tube, with obvious omissions, which directly affects the subsequent performance of the circular tube. Therefore, there is an urgent need to improve the existing grinding devices for the inner walls of circular tubes and provide an automatic grinding force control device for the inner walls of circular tubes. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a reasonably designed, simple structure, more automated grinding device that facilitates automatic reciprocating movement along the axis of the circular tube for more thorough grinding, thus solving the problems existing in the prior art.

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

[0006] An automatic grinding force control device for the inner wall of a circular tube, comprising:

[0007] A vertical plate, the left side wall of which is fixed with a base, a drive mechanism is installed on the base, and a rotating sleeve is installed on the bearing at the top center of the vertical plate. A second conical tooth is fixedly sleeved on the outer side of the left end of the rotating sleeve.

[0008] The L-shaped plate has a horizontal section that passes through and slides through a vertical plate. A horizontal tube is mounted on the middle of the vertical section of the L-shaped plate. The right end of the horizontal tube has symmetrical protrusions on its outer wall. The protrusions are engaged and slidably connected with the sleeve. The left end of the horizontal tube has symmetrical grooves on its outer wall. A mounting plate is symmetrically mounted on the outer side of the left end of the horizontal tube. A grinding disc is fixedly connected to the side of the mounting plate away from the horizontal tube.

[0009] An adjusting rod is mounted inside the horizontal tube by a bearing. The left end surface of the adjusting rod has two threaded structures with opposite thread directions and movable blocks threaded onto their outer sides. A support rod is hinged between the movable blocks and the mounting plate.

[0010] In a preferred embodiment, the drive mechanism includes a drive motor, a vertical shaft, a circular block, and a first bevel gear. The drive motor is fixedly mounted on a base, and the output end of the drive motor is fixedly fitted with a vertical shaft. A circular block and a first bevel gear are fixedly sleeved on the outer side of the vertical shaft. The first bevel gear is located above the circular block and meshes with a second bevel gear.

[0011] In a preferred embodiment, a through groove is provided in the middle of the horizontal section of the L-shaped plate, the circular block is movably located in the through groove, and the circular block is eccentrically positioned outside the vertical axis.

[0012] In a preferred embodiment, the interior of the vertical plate has multiple grooves surrounding the horizontal section of the L-shaped plate, and each groove is equipped with a rotating wheel, the surface of which is in contact with the surface of the L-shaped plate.

[0013] In a preferred embodiment, a plurality of rolling steel balls are installed at equal intervals along the length of the protrusion, and the rolling steel balls are in contact with the inner surface of the sleeve.

[0014] In a preferred embodiment, a positioning bolt is threaded onto the outer wall of the right end of the horizontal tube for positioning the adjusting rod against it.

[0015] In a preferred embodiment, the outer surface of the movable block is symmetrically provided with two protruding structures, which are respectively engaged and slidably located in the two sliding grooves, and the sliding directions of the two movable blocks are always opposite.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the solution of this utility model:

[0018] The drive motor is started to control the vertical shaft, the circular block and the first bevel tooth to rotate synchronously. The second bevel tooth, which meshes with the first bevel tooth, can control the rotation of the sleeve. The sleeve can drive the horizontal tube and two symmetrically arranged grinding discs to rotate rapidly through the protrusion, so as to grind the inner wall of the circular tube. At the same time, the circular block is eccentrically set outside the vertical shaft. Therefore, during the rotation of the circular block, it can squeeze the internal groove of the L-shaped plate. It can push the L-shaped plate to drive the horizontal tube and the grinding disc to reciprocate and slide along the axis of the circular tube while rotating, so as to facilitate the coverage of different areas and achieve more thorough grinding of the inner wall of the circular tube.

[0019] During the grinding of the inner wall of round pipes of different diameters, the adjusting rod can be manually rotated. Utilizing the two reverse threaded structures on its left end surface, the two movable blocks can be controlled to move stably and horizontally in opposite directions along the slide groove. This allows the distance between the mounting plate and the horizontal pipe to be controlled under the action of the support rod, thus facilitating a tight contact between the grinding disc and the inner wall of the round pipe and ensuring smooth grinding of the inner wall. In addition, the positioning bolts can be tightened to achieve contact positioning of the adjusting rod and ensure its stability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:

[0021] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0022] Figure 2 This is a front view schematic diagram of the overall structure of the grinding mechanism of this utility model;

[0023] Figure 3 This is a right-side view of the groove and rotating wheel structure of this utility model;

[0024] Figure 4 This is a front view schematic diagram of the overall structure of the drive mechanism of this utility model;

[0025] Figure 5 This is a top view of the circular block and L-shaped plate of this utility model.

[0026] In the picture:

[0027] 1. Vertical plate; 2. Base; 3. Drive motor; 4. Vertical shaft; 5. Round block; 6. First bevel tooth; 7. L-shaped plate; 8. Through groove; 9. Groove; 10. Rotary wheel; 11. Horizontal tube; 12. Sleeve; 13. Second bevel tooth; 14. Protrusion; 15. Rolling steel ball; 16. Adjusting rod; 17. Positioning bolt; 18. Slide groove; 19. Movable block; 20. Mounting plate; 21. Support rod; 22. Grinding disc. Detailed Implementation

[0028] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0029] like Figure 1-5 As shown, the automatic grinding force control device for the inner wall of a circular tube of this utility model includes:

[0030] A vertical plate 1 has a base 2 fixed to its left side wall. A drive mechanism is installed on the base 2. A rotating sleeve 12 is installed on the bearing at the top center of the vertical plate 1. A second bevel tooth 13 is fixedly sleeved on the outer side of the left end of the rotating sleeve 12.

[0031] L-shaped plate 7, the horizontal section of L-shaped plate 7 passes through vertical plate 1 and is slidably connected to it. A horizontal tube 11 is installed in the middle of the vertical section of L-shaped plate 7. A symmetrical protrusion 14 is provided on the outer wall of the right end of the horizontal tube 11. The protrusion 14 is engaged and slidably connected with the sleeve 12. A sliding groove 18 is symmetrically opened on the outer wall of the left end of the horizontal tube 11. A mounting plate 20 is symmetrically provided on the outer side of the left end of the horizontal tube 11. A grinding disc 22 is fixedly connected to the side of the mounting plate 20 away from the horizontal tube 11.

[0032] Adjusting rod 16, the adjusting rod 16 bearing is installed inside the horizontal tube 11. The left end surface of the adjusting rod 16 is provided with two threaded structures. The threads of the two threaded structures are opposite to each other and the outer side of each threaded structure is threaded with a movable block 19. The movable block 19 is hinged to the mounting plate 20 with a support rod 21.

[0033] Based on the above structure, the drive mechanism includes a drive motor 3, a vertical shaft 4, a circular block 5 and a first bevel tooth 6. The drive motor 3 is fixedly mounted on the base 2. The output end of the drive motor 3 is fixedly fitted with the vertical shaft 4. The circular block 5 and the first bevel tooth 6 are fixedly sleeved on the outside of the vertical shaft 4. The first bevel tooth 6 is located above the circular block 5 and meshes with the second bevel tooth 13.

[0034] In this embodiment, when the drive motor 3 is started to control the vertical shaft 4 and the first bevel tooth 6 to rotate, the second bevel tooth 13, which meshes with the first bevel tooth 6, can control the rotating sleeve 12 to drive the horizontal tube 11 and the grinding disc 22 to rotate, so as to start the grinding operation on the inner wall of the round tube.

[0035] Based on the above structure, a through groove 8 is provided in the middle of the horizontal section of the L-shaped plate 7, and the round block 5 is movably located in the through groove 8, and the round block 5 is eccentrically set on the outside of the vertical axis 4.

[0036] In this embodiment, since the circular block 5 is eccentrically fixed on the outside of the vertical shaft 4, when the vertical shaft 4 and the circular block 5 rotate, the circular block 5 can squeeze the internal through groove 8 of the L-shaped plate 7, which can push the L-shaped plate 7 to drive the horizontal tube 11 and the grinding disc 22 to reciprocate and slide along the axis of the circular tube while rotating, thereby facilitating the coverage of different areas and achieving more thorough grinding of the inner wall of the circular tube.

[0037] Based on the above structure, the interior of the vertical plate 1 is provided with multiple grooves 9 around the horizontal section of the L-shaped plate 7, and each groove 9 is equipped with a rotating wheel 10, the surface of the rotating wheel 10 being in contact with the surface of the L-shaped plate 7.

[0038] In this embodiment, the smoothness of the L-shaped plate 7 during horizontal sliding can be improved by using multiple rotating wheels 10 arranged around the L-shaped plate 7.

[0039] Based on the above structure, a number of rolling steel balls 15 are installed at equal intervals along the length of the protrusion 14, and the rolling steel balls 15 are in contact with the inner surface of the sleeve 12.

[0040] In this embodiment, the use of rolling steel balls 15 can improve the smoothness of sliding of the horizontal tube 11 and prevent it from being damaged due to excessive friction with the sleeve 12.

[0041] Based on the above structure, a positioning bolt 17 is threaded on the outer wall of the right end of the horizontal tube 11 to position the adjusting rod 16 against it.

[0042] In this embodiment, the positioning bolt 17 can be tightened to facilitate the contact positioning of the adjusting rod 16 and ensure its stable state.

[0043] Based on the above structure, the outer surface of the movable block 19 is symmetrically provided with two protruding structures. The two protruding structures are respectively engaged and slidably located in the two sliding grooves 18, and the sliding directions of the two movable blocks 19 are always opposite.

[0044] In this embodiment, the opening of the slide groove 18 facilitates the stable translation of the movable block 19, makes it easy to control the distance between the horizontal tube 11 and the mounting plate 20, and makes it easy for the grinding disc 22 to come into close contact with the inner wall of the round tube, thus ensuring the smooth grinding of the inner wall of the round tube.

[0045] The working principle of this utility model is as follows:

[0046] In use, the round tube to be polished can first be clamped and positioned using existing clamping equipment and fitted onto the outside of the polishing disc 22. At this time, the adjusting rod 16 can be manually rotated. Using the two reverse thread structures on its left end surface, the two movable blocks 19 can be controlled to slide synchronously along the slide groove 18 in a direction away from each other. Under the action of the support rod 21, the mounting plate 20 can be controlled to move away from the horizontal tube 11, so that the polishing disc 22 can be in close contact with the inner wall of the round tube. At the same time, the positioning bolt 17 can be tightened to achieve the contact positioning of the adjusting rod 16, ensuring the stability of the adjusting rod 16 and the polishing disc 22.

[0047] Once the grinding disc 22 comes into contact with the inner wall of the round tube, the drive motor 3 can be started to control the vertical shaft 4, the round block 5, and the first bevel tooth 6 to rotate. At this time, the second bevel tooth 13, which meshes with the first bevel tooth 6, can control the rotation of the sleeve 12. The sleeve 12 can drive the horizontal tube 11 and the grinding disc 22 to start rotating rapidly through the protrusion 14, thus realizing the grinding operation on the inner wall of the round tube. At the same time, since the round block 5 is eccentrically fixed outside the vertical shaft 4, when the round block 5 rotates, it can squeeze the internal through groove 8 of the L-shaped plate 7, which can push the L-shaped plate 7 to drive the horizontal tube 11 to reciprocate and slide along the axis of the round tube while rotating, thus making it easier to cover different areas and achieve more thorough grinding of the inner wall of the round tube, resulting in a better grinding effect.

[0048] In this device, the multiple rotating wheels 10 arranged around the L-shaped plate 7 can improve the smoothness of the L-shaped plate 7 during horizontal sliding, and the rolling steel balls 15 can improve the smoothness of the horizontal tube 11 sliding, avoiding damage caused by excessive friction between it and the sleeve 12.

[0049] It should be noted that this device is powered by an external power source. The drive motor 3 is a commercially available electrical appliance, and its specific control methods and working principles are well-known and mature technologies, so they will not be described in detail here.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. An automatic grinding force control device for the inner wall of a circular tube, characterized in that, include: A vertical plate (1) is fixed with a base (2) on its left side wall. A driving mechanism is installed on the base (2). A rotating sleeve (12) is installed on the bearing at the top center of the vertical plate (1). A second bevel tooth (13) is fixedly sleeved on the outer side of the left end of the rotating sleeve (12). The driving mechanism includes a driving motor (3), a vertical shaft (4), a round block (5), and a first bevel tooth (6). The driving motor (3) is fixedly installed on the base (2). The output end of the driving motor (3) is fixed with a vertical shaft (4). A round block (5) and a first bevel tooth (6) are fixedly sleeved on the outer side of the vertical shaft (4). The first bevel tooth (6) is located above the round block (5), and the first bevel tooth (6) meshes with the second bevel tooth (13). L-shaped plate (7), the horizontal section of the L-shaped plate (7) passes through the vertical plate (1) and is slidably connected to it. A horizontal tube (11) is installed in the middle of the vertical section of the L-shaped plate (7). A protrusion (14) is symmetrically provided on the outer wall of the right end of the horizontal tube (11). The protrusion (14) is engaged and slidably connected with the sleeve (12). A sliding groove (18) is symmetrically opened on the outer wall of the left end of the horizontal tube (11). A mounting plate (20) is symmetrically provided on the outer side of the left end of the horizontal tube (11). A grinding disc (22) is fixedly connected on the side of the mounting plate (20) away from the horizontal tube (11). A through groove (8) is opened in the middle of the horizontal section of the L-shaped plate (7). The round block (5) is movably located in the through groove (8), and the round block (5) is eccentrically set on the outer side of the vertical axis (4). Adjusting rod (16), the adjusting rod (16) is mounted inside the horizontal tube (11) and the left end surface of the adjusting rod (16) is provided with two threaded structures. The thread directions of the two threaded structures are opposite to each other and the outer side of each threaded structure is threaded with a movable block (19). The movable block (19) and the mounting plate (20) are hinged with a support rod (21).

2. The automatic grinding force control device for the inner wall of a circular tube according to claim 1, characterized in that: The interior of the vertical plate (1) is provided with a plurality of grooves (9) around the horizontal section of the L-shaped plate (7), and each groove (9) is provided with a rotating wheel (10), the surface of the rotating wheel (10) being in contact with the surface of the L-shaped plate (7).

3. The automatic grinding force control device for the inner wall of a circular tube according to claim 1, characterized in that: The interior of the protrusion (14) is provided with a number of rolling steel balls (15) at equal intervals along its length, and the rolling steel balls (15) are in contact with the inner surface of the sleeve (12).

4. The automatic grinding force control device for the inner wall of a circular tube according to claim 1, characterized in that: The right end of the horizontal tube (11) is threaded with a positioning bolt (17) for positioning the adjusting rod (16) against the outside.

5. The automatic grinding force control device for the inner wall of a circular tube according to claim 1, characterized in that: The outer surface of the movable block (19) is symmetrically provided with two protruding structures. The two protruding structures are respectively engaged and slidably located in the two sliding grooves (18). The sliding directions of the two movable blocks (19) are always opposite.

Images