Steel pipe inner hole polishing end

Abstract

The utility model discloses a steel pipe inner hole polishing end, and relates to the technical field of steel pipe polishing equipment, the steel pipe inner hole polishing end comprises a polishing end body, a replacing mechanism is arranged outside the polishing end body, a replacing head is sleeved outside the polishing end body, one end of the replacing head pushes an inserting block to the inside of an open groove, and the inserting block is inserted into the open groove. A telescopic spring is compressed, a telescopic rod is shrunk, the replacement head moves till the polishing end body is completely sleeved with the replacement head, at the moment, the elastic force of the telescopic spring pushes an inserting block to move to be inserted into an inserting groove, and the replacement head is preliminarily positioned, a mounting plate is rotated to the horizontal position, and a positioning sleeve plate is rotated; and the positioning sleeve plate moves to be clamped into the positioning groove, so that the replacement head is fixed to the outer portion of the polishing end head body, the replacement head is fixed and detached, the worn replacement head is directly and rapidly replaced, the whole end head does not need to be replaced, and waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe polishing equipment, in particular to a polishing end head for the inner hole of a steel pipe. Background Art

[0002] Steel pipe is a steel material with a hollow cross-section, whose length is much larger than its diameter or circumference. It is divided into round, square, rectangular and special-shaped steel pipes according to the cross-sectional shape. There are many ways to polish the inner diameter of steel pipe.

[0003] For example, publication number CN218017822U discloses a stainless steel pipe inner diameter polishing device, which includes a processing table, a fixed shell is provided at the upper end of the processing table, a telescopic cylinder is fixedly connected to the bottom surface of the processing table, the bottom surface of the fixed shell is rotatably connected to guide rollers arranged correspondingly on both sides, the outer side of the fixed shell is fixedly connected to a first motor that drives the guide rollers on both sides to rotate, and a baffle is slidably connected inside the fixed shell.

[0004] In the prior art, the polishing end head will be worn after working for many times. Continuing to use the worn polishing end head will affect the polishing quality of the inner diameter of the steel pipe, and the polishing end head needs to be replaced. However, most polishing end heads cannot be replaced by only replacing the worn outer surface, and the entire polishing end head can only be directly replaced, which causes waste. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when replacing a polishing end head, it is not possible to replace only the worn outer surface but only the entire polishing end head can be directly replaced, and a polishing end head for the inner hole of a steel pipe is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a polishing end cap for the inner hole of a steel pipe, comprising a polishing end cap body, a replacement mechanism being provided on the outside of the polishing end cap body, a end cap mechanism being provided at one end of the polishing end cap body, a mounting mechanism being provided at one end of the end cap mechanism, the replacement mechanism comprising a replacement head, the replacement head being sleeved on the outside of the polishing end cap body, a plug-in slot being provided on the inside of the plug-in slot, a plug-in block being plugged into the inside of the plug-in slot, one end of the replacement head being rotatably connected to a mounting plate, a positioning slot being provided on one side of the mounting plate, the end cap mechanism comprising a connecting rod and a positioning sleeve, the middle part of the positioning sleeve being threadedly connected to the spiral part of the connecting rod, and the end part of the positioning sleeve being clamped into the inside of the mounting plate.

[0007] Preferably, both sides of the polishing end head body are provided with slots, the inner side of the slot is fixedly connected to a telescopic rod, and one end of the telescopic rod is fixedly connected to one end of the plug-in block.

[0008] Preferably, a telescopic spring is sleeved on the outside of the telescopic rod, and the telescopic spring is arranged between the telescopic spring and the slot.

[0009] Preferably, the mounting mechanism includes a mounting rod, a cavity is provided inside the mounting rod, one end of the cavity is fixedly connected to a snap-in groove, and one end of the mounting rod is provided with a guide groove, one side of the guide groove is connected to the snap-in groove.

[0010] Preferably, a rotating plate is provided inside the clamping groove, one end of the rotating plate is fixedly connected to one end of the connecting rod, and one end of the rotating plate is fixedly connected to a positioning block.

[0011] Preferably, the interior of the cavity is rotatably connected to a threaded rod, the exterior of the threaded rod is threadably connected to a clamping block, and one end of the clamping block is clamped to one end of the positioning block.

[0012] Preferably, one side of the clamping block is slidably connected to a sliding rail, and one side of the sliding rail is fixedly connected to one side of the cavity.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, the replacement head is put on the outside of the polishing end head body, and one end of the replacement head pushes the plug-in block toward the inside of the slot. The telescopic spring is compressed, the telescopic rod contracts, and the replacement head moves to be completely put on the outside of the polishing end head body. At this time, the elastic force of the telescopic spring pushes the plug-in block to move to be plugged into the inside of the plug-in slot, and the replacement head is preliminarily positioned. The mounting plate is rotated to a horizontal position, and the positioning sleeve is rotated so that the positioning sleeve moves to be stuck in the inside of the positioning slot, thereby fixing the replacement head on the outside of the polishing end head body. By fixing and disassembling the replacement head, the worn replacement head can be quickly replaced directly without replacing the entire end head, thereby reducing waste.

[0015] 2. In the utility model, the connecting rod is inserted into one end of the mounting rod, the rotating plate slides to the end of the guide groove, and then the connecting rod is rotated so that the rotating plate is clamped into the inside of the clamping groove. At this time, the threaded rod is rotated to drive the clamping block to move until it is clamped on one end of the positioning block. The position of the positioning block can be fixed to prevent the positioning block from rotating, thereby fixing the connecting rod to one end of the mounting rod. The entire end head can be replaced according to the polishing requirements to meet the processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural diagram of a polished end of a steel pipe inner hole;

[0017] Figure 2 The utility model provides a schematic diagram of the disassembly structure of a polished end of the inner hole of a steel pipe;

[0018] Figure 3 The utility model provides a schematic diagram of the internal cross-sectional structure of a polished end of a steel pipe inner hole;

[0019] Figure 4 The utility model provides a schematic diagram of the internal cross-sectional structure of a mounting rod with a polished end of a steel pipe inner hole.

[0020] Legend: 1. Replacement mechanism; 11. Replacement head; 12. Mounting plate; 13. Plug-in slot; 14. Positioning slot; 2. Polishing end body; 3. End mechanism; 31. Positioning sleeve; 32. Plug-in block; 33. Connecting rod; 34. Telescopic spring; 35. Telescopic rod; 36. Slot; 4. Mounting mechanism; 41. Mounting rod; 42. Sliding rail; 43. Cavity; 44. Threaded rod; 45. Snap-in block; 46. Guide slot; 47. Snap-in slot; 48. Positioning block; 49. Rotating plate. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: Figure 1 - Figure 4 As shown, the utility model provides a polishing end cap for inner holes of steel pipes, comprising a polishing end cap body 2, a replacement mechanism 1 being provided on the outside of the polishing end cap body 2, an end cap mechanism 3 being provided at one end of the polishing end cap body 2, a mounting mechanism 4 being provided at one end of the end cap mechanism 3, the replacement mechanism 1 comprising a replacement head 11, the replacement head 11 being sleeved on the outside of the polishing end cap body 2, a plug-in slot 13 being provided on the inside of the replacement head 11, a plug-in block 32 being plugged into the plug-in slot 13, one end of the replacement head 11 being rotatably connected to a mounting plate 12, the mounting plate 12 A positioning groove 14 is provided on one side of the polishing end body 2, and the end mechanism 3 includes a connecting rod 33 and a positioning sleeve 31. The middle part of the positioning sleeve 31 is threadedly connected to the spiral part of the connecting rod 33, and the end of the positioning sleeve 31 is clamped in the inside of the mounting plate 12; slots 36 are provided on both sides of the polishing end body 2, and a telescopic rod 35 is fixedly connected to the inner side of the slot 36, and one end of the telescopic rod 35 is fixedly connected to one end of the plug-in block 32; a telescopic spring 34 is sleeved on the outside of the telescopic rod 35, and the telescopic spring 34 is arranged between the telescopic spring 34 and the slot 36.

[0024] The replacement head 11 is put on the outside of the polishing end body 2. During the process of replacing the head 11, one end of the replacement head 11 first contacts the plug-in block 32, and the plug-in block 32 is pushed toward the inside of the slot 36. The telescopic spring 34 is compressed, and the telescopic rod 35 contracts. The replacement head 11 moves until it is completely covered on the outside of the polishing end body 2. At this time, the plug-in slot 13 and the plug-in block 32 are at the same horizontal position. The compressed telescopic spring 34 pushes the plug-in block 32 to move to the inside of the plug-in slot 13, and the replacement head 11 is preliminarily positioned. The mounting plate 1 is rotated. 2 to a horizontal position, the end of the mounting plate 12 is stuck on the outside of the connecting rod 33, the positioning sleeve 31 is rotated, and the positioning sleeve 31 moves in the threaded position outside the connecting rod 33, and the positioning sleeve 31 rotates and moves, so that the positioning sleeve 31 moves to be stuck in the positioning groove 14, and the mounting plate 12 is fixed, thereby fixing the replacement head 11 to the outside of the polishing end body 2. After the replacement head 11 is worn, the worn replacement head 11 can be quickly replaced by fixing and disassembling the replacement head 11, without replacing the entire end head, thereby reducing waste.

[0025] Example 2: Figure 1 、 Figure 2 and Figure 3 As shown, the mounting mechanism 4 includes a mounting rod 41, a cavity 43 is provided inside the mounting rod 41, one end of the cavity 43 is fixedly connected to a clamping groove 47, a guide groove 46 is provided at one end of the mounting rod 41, one side of the guide groove 46 is connected to the clamping groove 47; a rotating plate 49 is provided inside the clamping groove 47, one end of the rotating plate 49 is fixedly connected to one end of the connecting rod 33, and one end of the rotating plate 49 is fixedly connected to a positioning block 48; the interior of the cavity 43 is rotatably connected to a threaded rod 44, the external thread of the threaded rod 44 is threadedly connected to a clamping block 45, one end of the clamping block 45 is clamped to one end of the positioning block 48; one side of the clamping block 45 is slidably connected to a sliding rail 42, and one side of the sliding rail 42 is fixedly connected to one side of the cavity 43.

[0026] Insert the connecting rod 33 into one end of the mounting rod 41, and the rotating plate 49 first slides to the end inside the guide groove 46, and then rotates the connecting rod 33 90 degrees so that the rotating plate 49 is clamped into the inside of the clamping groove 47. At this time, rotate the threaded rod 44 to drive the threaded clamping block 45 to move. The clamping block 45 slides on the outside of the sliding rail 42, and the clamping block 45 can be fixed to make a linear motion. The clamping block 45 moves to one end of the positioning block 48, and the position of the positioning block 48 can be fixed to prevent the positioning block 48 from rotating, thereby fixing the connecting rod 33 to one end of the mounting rod 41. The end head can be replaced as a whole according to the polishing requirements to meet the processing requirements.

[0027] The method of use and working principle of this device are as follows: insert the connecting rod 33 into one end of the mounting rod 41, the rotating plate 49 first slides to the end inside the guide groove 46, and then rotates the connecting rod 33 90 degrees so that the rotating plate 49 is stuck in the inside of the clamping groove 47. At this time, the threaded rod 44 is rotated to drive the clamping block 45 to move to one end of the positioning block 48, which can fix the position of the positioning block 48. Fix the connecting rod 33 to one end of the mounting rod 41, and put the replacement head 11 on the outside of the polishing end head body 2. One end of the replacement head 11 pushes the plug-in block 32 to the inside of the slot 36, extending The compression spring 34 is compressed, the telescopic rod 35 contracts, and the replacement head 11 moves to be completely covered on the outside of the polishing end body 2. At this time, the telescopic spring 34 pushes the plug-in block 32 to move and be plugged into the inside of the plug-in slot 13, and the replacement head 11 is preliminarily positioned. The mounting plate 12 is rotated to a horizontal position, and the end of the mounting plate 12 is stuck on the outside of the connecting rod 33. The positioning sleeve 31 is rotated, and the positioning sleeve 31 moves while rotating, so that the positioning sleeve 31 moves to be stuck in the inside of the positioning slot 14, and the mounting plate 12 is fixed, thereby fixing the replacement head 11 on the outside of the polishing end body 2.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A polished end cap for the inner hole of a steel pipe, comprising a polished end cap body (2), characterized in that: The polishing end head body (2) is provided with a replacement mechanism (1) on the outside, the polishing end head body (2) is provided with an end head mechanism (3) on one end, and a mounting mechanism (4) is provided on one end of the end head mechanism (3). The replacement mechanism (1) includes a replacement head (11), the replacement head (11) is sleeved on the outside of the polishing end head body (2), a plug-in slot (13) is provided on the inner side of the replacement head (11), a plug-in block (32) is plugged into the inside of the plug-in slot (13), one end of the replacement head (11) is rotatably connected to a mounting plate (12), a positioning slot (14) is provided on one side of the mounting plate (12), the end head mechanism (3) includes a connecting rod (33) and a positioning sleeve (31), the middle part of the positioning sleeve (31) is threadedly connected to the spiral part of the connecting rod (33), and the end of the positioning sleeve (31) is clamped inside the mounting plate (12).

2. The steel pipe inner hole polishing end according to claim 1, characterized in that: Both sides of the polishing end head body (2) are provided with slots (36), the inner side of the slots (36) is fixedly connected to a telescopic rod (35), and one end of the telescopic rod (35) is fixedly connected to one end of the plug-in block (32).

3. The steel pipe inner hole polishing end according to claim 2, characterized in that: The telescopic rod (35) is sleeved with a telescopic spring (34) on its exterior, and the telescopic spring (34) is arranged between the telescopic spring (34) and the slot (36).

4. The steel pipe inner hole polishing end according to claim 1, characterized in that: The mounting mechanism (4) comprises a mounting rod (41), a cavity (43) is provided inside the mounting rod (41), one end of the cavity (43) is fixedly connected to a clamping groove (47), and one end of the mounting rod (41) is provided with a guide groove (46), one side of the guide groove (46) is connected to the clamping groove (47).

5. The steel pipe inner hole polishing end according to claim 4, characterized in that: A rotating plate (49) is provided inside the clamping groove (47), one end of the rotating plate (49) is fixedly connected to one end of the connecting rod (33), and one end of the rotating plate (49) is fixedly connected to a positioning block (48).

6. The steel pipe inner hole polishing end according to claim 4, characterized in that: The interior of the cavity (43) is rotatably connected to a threaded rod (44), and the exterior of the threaded rod (44) is threadably connected to a clamping block (45), one end of the clamping block (45) being clamped to one end of a positioning block (48).

7. The steel pipe inner hole polishing end according to claim 6, characterized in that: One side of the clamping block (45) is slidably connected to a sliding rail (42), and one side of the sliding rail (42) is fixedly connected to one side of the cavity (43).

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