Polishing machine for inner wall of circular tube

Abstract

The utility model relates to the field of steel pipe machining, and discloses a round pipe inner wall polishing machine which comprises a supporting seat, a connecting rod is arranged on the inner wall of the supporting seat, a motor is fixedly connected to the top end of the connecting rod, a fixing block is fixedly connected to the output end of the motor, and a connecting mechanism is arranged on the outer wall of the fixing block. The left end of the connecting rod is rotatably connected with a connecting frame, the inner wall of the connecting frame is rotatably connected with a rotating shaft through a bearing, the outer wall of the rotating shaft is detachably provided with a grinding disc, the outer wall of the grinding disc is in contact with a steel pipe, and the inner wall of the rotating shaft is provided with a limiting assembly. According to the steel pipe inner wall polishing device, the positions of the rotating shaft and the polishing disc can be rapidly adjusted and firmly connected by simply operating the movable sleeve, the fixed block, the reset spring and the fastening bolt, different types of polishing discs can be conveniently used according to different steel pipe inner wall polishing requirements, various operation requirements can be conveniently met, and the universality and flexibility of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel pipe processing especially relates to a round pipe inner wall polishing machine. BACKGROUND

[0002] The round pipe inner wall polishing machine is a kind of professional equipment for polishing and polishing the inner surface of steel pipe, and many steel pipes are used to transport liquid, gas or as mechanical structural parts, so polishing machine is needed to ensure the conveying efficiency of fluid, the service life of equipment and many other factors.

[0003] Traditional round pipe inner wall polishing machine often lacks flexibility, it is difficult to quickly adapt to the replacement needs of different types of polishing disc, when facing a variety of steel pipe processing tasks, the operation of frequently replacing polishing disc is complex and time-consuming, which seriously affects the production efficiency and increases the production cost, when the polishing disc needs to be replaced due to wear, the existing device usually needs to use complex tools and cumbersome steps, which not only prolongs the equipment downtime and reduces the production continuity, but also may cause damage to the equipment due to improper operation, further increasing the difficulty and cost of equipment maintenance, therefore, a round pipe inner wall polishing machine is proposed to solve the above problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of round pipe inner wall polishing machine, to improve the problem that corresponding polishing disc cannot be replaced quickly in prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of round pipe inner wall polishing machine, including support seat, the inner wall of the support seat is provided with connecting rod, the top of the connecting rod is fixedly connected with motor, the output end of the motor is fixedly connected with fixed block, the outer wall of the fixed block is provided with connecting mechanism, the left end of the connecting rod is rotatably connected with connecting frame, the inner wall of the connecting frame is rotatably connected with shaft through bearing, the outer wall of the shaft is detachably installed with polishing disc, the outer wall of the polishing disc is contacted with steel pipe, the inner wall of the shaft is provided with limiting assembly;

[0006] The connecting mechanism includes a moving sleeve, the left end of the moving sleeve is elastically connected with the shaft through a return spring, the moving sleeve is inserted on the outer wall of the fixed block, and the inner wall of the moving sleeve penetrates and is screw connected with a fastening bolt.

[0007] Further description of the above technical scheme:

[0008] The limiting assembly includes a pressing plate, the pressing plate penetrates and is slidingly connected on the inner wall of the shaft, the pressing plate is provided with two groups, the two groups of pressing plates are elastically connected through positioning spring, and the left end of the pressing plate is fixedly connected with wedge block.

[0009] As a further description of the above technical solutions:

[0010] The wedge block is penetrated and slidably connected on the inner wall of the rotating shaft.

[0011] As a further description of the above technical solutions:

[0012] The wedge block is penetrated and slidably connected on the inner wall of the rotating shaft.

[0013] As a further description of the above technical solutions:

[0014] The left end of the moving sleeve is fixedly connected with one end of the reset spring, and the other end of the reset spring is fixedly connected with the inner side wall of the rotating shaft.

[0015] As a further description of the above technical solutions:

[0016] The fastening bolt is threadedly connected on the inner wall of the fixed block.

[0017] As a further description of the above technical solutions:

[0018] The moving sleeve is penetrated and slidably connected on the outer wall of the rotating shaft

[0019] As a further description of the above technical solutions:

[0020] The inner surface of the support seat is provided with a cylindrical protrusion at the center.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1、The utility model discloses a simple operation moving sleeve, fixed block, reset spring and fastening bolt can be quickly adjusted the position of rotating shaft and polishing disc and firmly connected, and different models of polishing disc are used according to different steel pipe inner wall polishing needs, and the device versatility and flexibility are improved.

[0023] 2、The utility model discloses the cooperation of pressing plate, positioning spring and wedge block, and the polishing disc is detached and installed from the rotating shaft easily, effectively shortens the replacement time, improves equipment maintenance efficiency, reduces the work interruption time caused by replacing the polishing disc, and guarantees production continuity. DRAWINGS

[0024] Figure 1 A steel pipe and support seat whole three-dimensional schematic view of the utility model are provided.

[0025] Figure 2 A fixed block, motor and moving sleeve whole three-dimensional schematic view of the utility model are provided.

[0026] Figure 3 Figure 1 is a whole sectional view schematic diagram of the rotating shaft and polishing disc of the pipe inner wall polishing machine.

[0027] Legend:

[0028] 1, support seat; 2, connecting rod; 3, motor; 4, fixed block; 5, moving sleeve; 6, return spring; 7, rotating shaft; 8, polishing disc; 9, connecting frame; 10, fastening bolt; 11, pressing plate; 12, positioning spring; 13, wedge; 14, steel pipe. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Reference Figure 1 - Figure 3 An embodiment provided by the utility model: a pipe inner wall polishing machine, comprising a support seat 1, an electric guide rail is arranged on the support seat 1, the electric guide rail is operated by external electric control equipment, so that the connecting rod 2 moves vertically along the inner wall of the support seat 1, the electric guide rail is prior art, and no more description is made, the inner wall of the support seat 1 is provided with the connecting rod 2, the connecting rod 2 mainly supports and connects the whole polishing component, the top end of the connecting rod 2 is fixedly connected with a motor 3, the output end of the motor 3 is fixedly connected with a fixed block 4, the fixed block 4 is concave, and the concave surface is matched with the inner wall convex surface of a moving sleeve 5, so that the fixed block 4 can rotate with the moving sleeve 5, the outer wall of the fixed block 4 is provided with a connecting mechanism, the left end of the connecting rod 2 is rotatably connected with a connecting frame 9, the connecting frame 9 mainly connects the rotating shaft 7, and the connecting frame 9 is provided with a bearing, the inner wall of the connecting frame 9 is fixed with the outer ring of the bearing, and the outer ring of the bearing is fixed with the inner ring of the bearing, so that the rotating shaft 7 can rotate with small friction, the inner wall of the connecting frame 9 is rotatably connected with the rotating shaft 7 through the bearing, the outer wall of the rotating shaft 7 is detachably connected with a polishing disc 8, the polishing disc 8 is provided with different models, the polishing precision required by the steel pipe 14 can be adjusted through different models of the polishing disc 8, the outer wall of the polishing disc 8 is in contact with the steel pipe 14, and the inner wall of the rotating shaft 7 is provided with a limiting assembly.

[0031] The connecting mechanism comprises a moving sleeve 5, the left end side wall of the moving sleeve 5 is elastically connected with a reset spring 6 and a rotating shaft 7, the rotating shaft 7 is provided with a notch corresponding to the right end of the moving sleeve 5, the moving sleeve 5 can slide at the right end, the moving sleeve 5 is inserted on the outer wall of the fixed block 4, the inner wall of the moving sleeve 5 penetrates and is threadedly connected with a fastening bolt 10, the moving sleeve 5 is provided with a thread corresponding to the fastening bolt 10, and the fastening bolt 10 can move along the inner wall of the moving sleeve 5.

[0032] With reference to Figure 1 - Figure 3 The limiting assembly comprises a pressing plate 11, the pressing plate 11 penetrates and is slidingly connected to the inner wall of the rotating shaft 7, the rotating shaft 7 is provided with a notch, the pressing plate 11 can vertically move along the inner wall, the pressing plate 11 is provided in two groups, the two groups of pressing plates 11 are elastically connected through a positioning spring 12, one end of the positioning spring 12 is fixed to the upper pressing plate 11, the other end of the positioning spring 12 is fixed to the lower pressing plate 11, when the two groups of pressing plates 11 are close to each other, the positioning spring 12 is compressed, when reset, the pressing plate 11 is reset by the reverse elastic force of the positioning spring 12, the left end of the pressing plate 11 is fixedly connected with a wedge block 13, the wedge block 13 is inclined, when the inclined surface is extruded, the wedge block 13 will vertically move with the pressing plate 11, the wedge block 13 penetrates and is slidingly connected to the inner wall of the rotating shaft 7, the rotating shaft 7 is provided with a notch corresponding to the wedge block 13, the wedge block 13 can slide along the notch in the inner wall of the rotating shaft 7, the wedge block 13 is inserted in the inner wall of the polishing disc 8, the inner wall of the polishing disc 8 is provided with a notch corresponding to the wedge block 13, and the wedge block 13 is aligned and limited by the polishing disc 8.

[0033] With reference to Figure 1 - Figure 3 The left end of the moving sleeve 5 is fixedly connected with one end of the reset spring 6, when the moving sleeve 5 moves to the left, the reset spring 6 is compressed, when reset, the moving sleeve 5 is reset by the reverse elastic force of the reset spring 6, the other end of the reset spring 6 is fixedly connected with the inner side wall of the rotating shaft 7, the fastening bolt 10 is threadedly connected to the inner wall of the fixed block 4, the fixed block 4 is provided with a notch corresponding to the fastening bolt 10, the moving sleeve 5 penetrates and is slidingly connected to the outer wall of the rotating shaft 7, the inner surface of the supporting seat 1 is provided with a rectangular sliding groove at the center, and the inner surface of the supporting seat 1 is provided with a cylindrical protrusion at the center.

[0034] Working principle: first need according to the inner wall of different steel pipe 14 polishing demand, use different type polishing disc 8, only need to twist fastening bolt 10 first let fastening bolt 10 and fixed block 4 on the release connection, then move to the left moving sleeve 5 let moving sleeve 5 and the outer wall of fixed block 4 separate and compress reset spring 6, through positive and negative rotation connecting frame 9 let need to use corresponding polishing disc 8, let another group of rotating shaft 7 with moving sleeve 5 rotate to align with fixed block 4, and hand early to the left moving sleeve 5, need to connect moving sleeve 5 and fixed block 4, only need to loosen moving sleeve 5 with reset spring 6 elastic force with moving sleeve 5 to the right, let moving sleeve 5 and fixed block 4 insert the whole rotating shaft 7 positioning, twist fastening bolt 10 again let fastening bolt 10 and fixed block 4 thread connection, the device in use, only need to start motor 3 with moving sleeve 5, rotating shaft 7, connecting frame 9 rotation polishing can be.

[0035] Need to replace the worn polishing disc 8, only need to press press plate 11 and compress the positioning spring 12, let press plate 11 with wedge block 13 move down and separate from the inner wall slot of polishing disc 8, then remove the polishing disc 8 from the left end of rotating shaft 7, finally loosen press plate 11 with reset spring 12 elastic force with wedge block 13 reset, need to install new polishing disc 8, only need to insert the polishing disc 8 from the left end of rotating shaft 7, and let the right end of polishing disc 8 extrude the inclined surface of wedge block 13, let wedge block 13 move down and compress the positioning spring 12, when wedge block 13 and the slot of polishing disc 8 coincide, use the elastic force of positioning spring 12 with press plate 11 and wedge block 13 reset, let wedge block 13 insert in the inner wall of polishing disc 8.

[0036] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A machine for polishing the internal wall of a circular tube comprising a support seat (1), characterized in that: The inner wall of the support seat (1) is provided with a connecting rod (2), the top end of the connecting rod (2) is fixedly connected with a motor (3), the output end of the motor (3) is fixedly connected with a fixed block (4), the outer wall of the fixed block (4) is provided with a connecting mechanism, the left end of the connecting rod (2) is rotatably connected with a connecting frame (9), the inner wall of the connecting frame (9) is rotatably connected with a rotating shaft (7) through a bearing, the outer wall of the rotating shaft (7) is detachably installed with a polishing disc (8), the outer wall of the polishing disc (8) is in contact with a steel pipe (14), the inner wall of the rotating shaft (7) is provided with a limiting assembly; The connecting mechanism comprises a moving sleeve (5), the left end side wall of the moving sleeve (5) is elastically connected with the rotating shaft (7) through a return spring (6), the moving sleeve (5) is inserted on the outer wall of the fixed block (4), and the inner wall of the moving sleeve (5) penetrates and is screw-connected with a fastening bolt (10).

2. A pipe internal polishing machine according to claim 1, characterized in that: The limiting assembly comprises a pressing plate (11), the pressing plate (11) penetrates and is slidingly connected on the inner wall of the rotating shaft (7), the pressing plate (11) is provided with two groups, the two groups of pressing plates (11) are elastically connected through a positioning spring (12), and the left end of the pressing plate (11) is fixedly connected with a wedge block (13).

3. A round tube inner wall polishing machine according to claim 2, characterized in that: The wedge block (13) penetrates and is slidingly connected on the inner wall of the rotating shaft (7).

4. A pipe internal polishing machine according to claim 2, characterized in that: The wedge block (13) is inserted on the inner wall of the polishing disc (8).

5. A pipe internal polishing machine according to claim 1, characterized in that: The left end of the moving sleeve (5) is fixedly connected with one end of the return spring (6), and the other end of the return spring (6) is fixedly connected with the inner side wall of the rotating shaft (7).

6. A pipe internal polishing machine according to claim 1, characterized in that: The fastening bolt (10) is screw-connected on the inner wall of the fixed block (4).

7. A pipe internal polishing machine according to claim 1, characterized in that: The moving sleeve (5) penetrates and is slidingly connected on the outer wall of the rotating shaft (7).

8. A pipe internal polishing machine according to claim 1, characterized in that: A rectangular sliding groove is formed in the center of the inner surface of the support seat (1), and a cylindrical protrusion is arranged in the center of the inner surface of the support seat (1).

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