Internal grinding device for small-caliber seamless tube

Abstract

The utility model relates to the technical field of coping devices, in particular to a coping device for the interior of a small-caliber seamless tube. The device comprises a mounting bottom plate, a pair of first sliding grooves are formed in the mounting bottom plate, a first mounting groove is further formed in the mounting bottom plate, the first mounting groove is located between the two first sliding grooves, a driving assembly is arranged in the first mounting groove, and a steel pipe fixing assembly is arranged on a side plate of the mounting bottom plate. The steel pipe fixing assembly is clamped at one end of a steel pipe, a supporting assembly is arranged on the mounting bottom plate, and the other side of the steel pipe is arranged on the supporting assembly. Through the arrangement of the adjustable grinding assembly, the vertical position of the grinding equipment can be accurately adjusted according to the detected internal injury position, so that a grinding head accurately makes contact with the internal injury position for grinding, and the grinding pertinence and effect are improved; and the polishing equipment can be fed into the seamless steel pipe with the smaller diameter for polishing.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to an internal grinding device for a small-diameter seamless pipe. Background Art

[0002] Seamless steel pipe is a rolled steel pipe without welds, which is carefully manufactured through processes such as hot rolling or cold working to obtain the necessary shape, size and properties.

[0003] After the seamless steel pipe is successfully manufactured, it is usually necessary to carry out flaw detection and grinding operations on its inner wall. However, the existing equipment has obvious limitations. It can only grind the specification pipes with an inner diameter of more than 114mm. It cannot effectively detect and grind the seamless steel pipes with an inner diameter between 114mm and 60mm. This situation has caused a large number of seamless steel pipes within this specification range to be scrapped. Utility Model Content

[0004] The utility model aims to provide a small-diameter seamless pipe internal grinding device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution, which includes a mounting base plate, a pair of slide grooves are provided on the mounting base plate, a mounting groove is also provided on the mounting base plate, the mounting groove is located between the two slide grooves, a driving component is arranged in the mounting groove, a steel pipe fixing component is arranged on the side plate of the mounting base plate, the steel pipe fixing component is clamped on one end of the steel pipe, a supporting component is arranged on the mounting base plate, and the other side of the steel pipe is arranged on the supporting component, a movable mounting plate is movably arranged on the mounting base plate, the movable mounting plate is drivingly connected to the driving component, a mounting frame is arranged on the movable mounting plate, an adjustable grinding component is arranged in the mounting frame, an inverted "L"-shaped plate is arranged on the top of the mounting frame, and a detection component is arranged on the inverted "L"-shaped plate.

[0006] As a preferred embodiment of the utility model, a mounting groove is provided in the mounting frame, and the adjustable grinding assembly includes a third motor arranged in the mounting groove, a second lead screw is provided at the transmission end of the third motor, the second lead screw is movably arranged between the top plate of the mounting frame and the third motor, a moving block is threadedly provided on the second lead screw, the moving block is located in the mounting frame, a hollow connecting rod is provided on the side of the moving block close to the steel pipe, and a grinding device is provided at the other end of the hollow connecting rod.

[0007] As a preferred embodiment of the utility model, second slide rails are symmetrically arranged on the two front side frames of the mounting frame, and the detection component includes a telescopic cylinder 2 arranged on the top of an inverted "L" shaped plate, and after the telescopic rod of the telescopic cylinder 2 passes through the inverted "L" shaped plate, a "T" shaped block is arranged on the top thereof, and a pair of slide grooves 2 are opened on the back of the "T" shaped block, and the second slide rail is located in the slide grooves 2, and a hollow connecting rod 2 is arranged on the front of the "T" shaped block, and a detection probe is arranged on the other end of the hollow connecting rod 2, and the detection probe is located above the grinding equipment and corresponds to the grinding head of the grinding equipment.

[0008] As a preferred embodiment of the utility model, the driving assembly includes a first lead screw movably arranged in an installation groove, one end of the first lead screw is arranged on the transmission end of the first motor, the first motor is arranged on one side of the mounting base plate, a driving member is arranged at the bottom of the movable mounting plate, the driving member is located in the installation groove, and a thread is arranged on the first lead screw, and a pair of first slide rails are arranged at the bottom of the movable mounting plate, and the two first slide rails are respectively arranged in two slide grooves.

[0009] As a preferred embodiment of the utility model, the steel pipe fixing assembly includes a second motor arranged on the back side of the side plate of the mounting base plate, after the driving end of the second motor passes through the side plate, a fixing plate is arranged on the top thereof, a cross mounting groove is opened on the fixing plate, a pair of bidirectional screws are staggered in the cross mounting groove, a pair of clamping members are symmetrically arranged on each of the bidirectional screws, and the surfaces of the clamping members are provided with rubber anti-slip patterns.

[0010] As a preferred embodiment of the present invention, one end of the two bidirectional screws is provided with an inner hexagonal groove.

[0011] As a preferred embodiment of the present invention, the support assembly includes telescopic cylinders 1 arranged on both sides of the installation base plate, and support plates are simultaneously arranged on the tops of the two telescopic cylinders 1.

[0012] As a preferred embodiment of the present invention, the diameter of the hollow connecting rod 1 is 40 mm.

[0013] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0014] 1. The utility model provides an adjustable grinding component, which can accurately adjust the upper and lower positions of the grinding equipment according to the detected internal damage position, so that the grinding head can accurately contact the internal damage position for grinding, thereby improving the pertinence and effect of grinding, and through a small-diameter hollow connecting rod, the grinding equipment can be sent into a seamless steel pipe with a smaller diameter for grinding.

[0015] 2. The utility model sets up a detection component. The telescopic cylinder can accurately control the contact between the detection probe and the outer wall of the steel pipe, and can adjust its height according to the steel pipes with different wall thicknesses. The second slide rail and the second slide groove ensure the smooth movement of the "T"-shaped block and the detection probe, ensuring that the detection probe can accurately perform flaw detection on the inner wall of the steel pipe and detect internal injuries in time.

[0016] 3. The utility model sets a steel pipe fixing component. The cooperation of the bidirectional screw and the clamping piece can firmly clamp steel pipes of different diameters. The rubber anti-skid pattern increases the stability of the clamping, prevents the steel pipe from sliding or shifting during operation, and ensures the accuracy of grinding and flaw detection. The second motor can drive the fixed disk to rotate, which is convenient for all-round detection and grinding of the inner wall of the steel pipe and reduces the blind spots of detection and grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall installation base structure of the utility model;

[0019] Figure 3 for Figure 1 Schematic diagram of the structure after cutting and installing the bottom plate;

[0020] Figure 4 This is a schematic diagram of the mounting frame structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the adjustable grinding assembly of the utility model;

[0022] Figure 6 This is a schematic diagram of the detection component structure of the utility model;

[0023] Figure 7 It is a schematic diagram of the adjustable grinding assembly and the detection assembly of the utility model when assembled with the mounting frame;

[0024] Figure 8 This is a schematic diagram of the structure of the steel pipe fixing assembly of the utility model;

[0025] Fig. 9 This is a schematic diagram of the positional relationship structure of two bidirectional screws of the utility model;

[0026] Fig.10 This is a schematic diagram of the support assembly structure of the utility model.

[0027] Figure numerals: mounting base plate 1, slide groove 10, mounting groove 11, support assembly 12, telescopic cylinder 120, support plate 121, drive assembly 2, first motor 20, first lead screw 21, steel pipe fixing assembly 3, second motor 30, fixing plate 31, cross mounting groove 32, bidirectional screw 33, hexagonal groove 330, clamping member 34, rubber anti-slip pattern 340, movable mounting plate 4, first slide rail 40, drive member 41, mounting frame 5, mounting groove 50, second slide rail 51, inverted "L" shaped plate 52, adjustable grinding assembly 6, third motor 60, second lead screw 61, moving block 62, hollow connecting rod 1 63, grinding equipment 64, detection assembly 7, telescopic cylinder 2 70, "T" shaped block 71, slide groove 2 72, hollow connecting rod 2 73, detection probe 74. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0029] like Figure 1-Figure 2 As shown, the utility model proposes a small-diameter seamless pipe internal grinding device, including a mounting base plate 1, a pair of slide grooves 10 are opened on the mounting base plate 1, and a mounting groove 11 is opened, and the mounting groove 11 is located between the two slide grooves 10, and a driving component 2 is arranged in the mounting groove 11, and the driving component 2 includes a first lead screw 21 movably arranged in the mounting groove 11, one end of the first lead screw 21 is connected to the transmission end of a first motor 20 arranged on one side of the mounting base plate 1, and a driving member 41 is provided at the bottom of the movable mounting plate 4, and the driving member 41 is located in the mounting groove 11 and is threadedly arranged on the first lead screw 21, and a pair of first slide rails 40 are also provided at the bottom of the movable mounting plate 4, and the two first slide rails 40 are respectively arranged in the two slide grooves 10.

[0030] As an optimization scheme of the utility model, by setting a driving component 2, the first motor 20 drives the first screw 21 to rotate, so that the driving member 41 moves accurately along the first screw 21, thereby driving the movable mounting plate 4 to move back and forth smoothly and accurately, thereby realizing the precise positioning of the grinding equipment 64 and the detection probe 74 in the steel pipe, which helps to improve the accuracy and efficiency of flaw detection and grinding.

[0031] like Figure 8-Figure 9As shown, a steel pipe fixing assembly 3 is arranged on the side plate of the mounting base plate 1, and the steel pipe fixing assembly 3 includes a second motor 30 arranged on the back side plate of the mounting base plate 1, and a fixing plate 31 is arranged on the top after the driving end of the second motor 30 passes through the side plate, and a cross mounting groove 32 is opened on the fixing plate 31, and a pair of bidirectional screws 33 are staggered in the cross mounting groove 32, and each bidirectional screw 33 is symmetrically provided with a pair of clamping members 34, and the surface of the clamping members 34 is provided with rubber anti-slip grooves 340, and one end of the two bidirectional screws 33 is provided with a hexagonal groove 330.

[0032] like Fig.10 As shown, a support assembly 12 is arranged on the mounting base plate 1, and the support assembly 12 includes a telescopic cylinder 120 arranged on both sides of the mounting base plate 1, and a support plate 121 is also arranged on the top of the two telescopic cylinders 120, and the other side of the steel pipe is arranged on the support plate 121 of the support assembly 12.

[0033] As an optimization solution of the utility model, a support assembly 12 is provided to provide stable support at the other end of the steel pipe, share the weight of the steel pipe, reduce deformation or position deviation caused by the deadweight of the steel pipe, and ensure the stability and accuracy of the steel pipe during grinding and flaw detection.

[0034] like Figure 3-Figure 5 As shown, a movable mounting plate 4 is movably provided on the mounting base plate 1, and the movable mounting plate 4 is drivingly connected to the above-mentioned driving assembly 2. A mounting frame 5 is provided on the movable mounting plate 4, and a mounting groove 50 is opened in the mounting frame 5. An adjustable grinding assembly 6 is provided in the mounting groove 50. The adjustable grinding assembly 6 includes a third motor 60 arranged in the mounting groove 50, and a second lead screw 61 is provided at the transmission end of the third motor 60. The second lead screw 61 is movably arranged between the top plate of the mounting frame 5 and the third motor 60. A moving block 62 is threadedly provided on the second lead screw 61, and the moving block 62 is located in the mounting frame 5. A hollow connecting rod 63 is provided on the side of the moving block 62 close to the steel pipe, and a grinding device 64 is provided at the other end of the hollow connecting rod 63. The diameter of the hollow connecting rod 63 is 40 mm.

[0035] like Figure 6 As shown, an inverted "L"-shaped plate 52 is provided on the top of the mounting frame 5, and a detection component 7 is provided on the inverted "L"-shaped plate 52. Second slide rails 51 are symmetrically provided on the two front side frames of the mounting frame 5. The detection component 7 includes a telescopic cylinder 70 arranged on the top of the inverted "L"-shaped plate 52. After the telescopic rod of the telescopic cylinder 70 passes through the inverted "L"-shaped plate 52, a "T"-shaped block 71 is provided on the top. A pair of slide grooves 72 are provided on the back of the "T"-shaped block 71. The second slide rail 51 is located in the slide groove 72. A hollow connecting rod 73 is provided on the front of the "T"-shaped block 71. A detection probe 74 is provided on the other end of the hollow connecting rod 73. The detection probe 74 is located above the grinding device 64 and corresponds to the grinding head of the grinding device 64.

[0036] When in use, first place one end of the steel pipe to be ground against the fixing plate 31, then use a hexagonal wrench to adjust the two bidirectional screws 33 so that the two clamping members 34 of each of them move inward at the same time, thereby clamping the steel pipe. After the clamping is completed, the support plate 121 is lifted up by operating the two telescopic cylinders 120 so that the support plate 121 can support the other side of the steel pipe.

[0037] Next, the first motor 20 is controlled to rotate forward, and the first lead screw 21 drives the movable mounting plate 4 to move forward until the grinding device 64 just extends into the steel pipe, and then the telescopic cylinder 2 70 is controlled to lower the "T"-shaped block 71 until the detection probe 74 just fits the outer wall of the steel pipe, at which time the action of the telescopic cylinder 2 70 is stopped;

[0038] Then the detection probe 74 can be turned on, and the first motor 20 can be started at the same time to rotate slowly, so that the first screw 21 drives the movable mounting plate 4 to move forward slowly. During the movement, the detection probe 74 can perform flaw detection on the inner wall of the steel pipe. When the detection probe 74 detects that there is internal damage on the inner wall of the steel pipe, the first motor 20 must be stopped immediately to stop the movable mounting plate 4 from moving forward. Then, the third motor 60 is controlled to drive the second screw 61 to rotate, and then the upper and lower positions of the moving block 62 are adjusted. When the grinding head of the grinding device 64 contacts the inner wall of the steel pipe, the third motor 60 is stopped. Since the position of the grinding head of the grinding device 64 corresponds to the detection probe 74, the position where the grinding head of the grinding device 64 contacts is exactly the position of the internal damage of the steel pipe. Then the grinding device 64 is turned on for grinding. During the grinding process, the detection probe 74 is used to observe whether the grinding is smooth.

[0039] After the grinding is completed, the grinding equipment 64 is lowered, and the first motor 20 is started to continue to move forward for flaw detection; when the detection probe 74 moves to the other end of the steel pipe, it is necessary to control the rotation of the second motor 30 to drive the fixed plate 31 to rotate, and then with the help of the mutual cooperation of several clamping parts 34, the steel pipe is rotated by an angle of the detection probe 74, and then the first motor 20 is reversed to drive the movable mounting plate 4 to move backward, and the flaw detection process is performed again; the above-mentioned operation steps are repeated until the flaw detection and grinding work of the entire inner wall of the steel pipe is completed.

[0040] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A small-diameter seamless pipe internal grinding device, comprising a mounting base plate (1), a pair of slide grooves (10) are formed on the mounting base plate (1), a mounting groove (11) is further formed on the mounting base plate (1), the mounting groove (11) is located between the two slide grooves (10), a driving assembly (2) is arranged in the mounting groove (11), and the characteristics are: A steel pipe fixing assembly (3) is arranged on the side plate of the mounting base plate (1), and the steel pipe fixing assembly (3) is clamped on one end of the steel pipe. A support assembly (12) is arranged on the mounting base plate (1), and the other side of the steel pipe is arranged on the support assembly (12). A movable mounting plate (4) is movably arranged on the mounting base plate (1), and the movable mounting plate (4) is drivingly connected to the driving assembly (2). A mounting frame (5) is arranged on the movable mounting plate (4), and an adjustable grinding assembly (6) is arranged inside the mounting frame (5). An inverted "L"-shaped plate (52) is arranged on the top of the mounting frame (5), and a detection assembly (7) is arranged on the inverted "L"-shaped plate (52).

2. The internal grinding device for small-diameter seamless pipe according to claim 1, characterized in that: The mounting frame (5) is provided with a mounting groove (50), and the adjustable grinding assembly (6) includes a third motor (60) arranged in the mounting groove (50), a second lead screw (61) is arranged at the transmission end of the third motor (60), the second lead screw (61) is movably arranged between the top plate of the mounting frame (5) and the third motor (60), a moving block (62) is threadedly arranged on the second lead screw (61), the moving block (62) is located in the mounting frame (5), a hollow connecting rod (63) is arranged on the side of the moving block (62) close to the steel pipe, and a grinding device (64) is arranged at the other end of the hollow connecting rod (63).

3. The internal grinding device for small-diameter seamless pipe according to claim 2, characterized in that: The second slide rails (51) are symmetrically arranged on the two side frames of the front side of the mounting frame (5); the detection assembly (7) comprises a second telescopic cylinder (70) arranged on the top of the inverted "L"-shaped plate (52); after the telescopic rod of the second telescopic cylinder (70) passes through the inverted "L"-shaped plate (52), a "T"-shaped block (71) is arranged on the top; a pair of second slide grooves (72) are opened on the back side of the "T"-shaped block (71); the second slide rail (51) is located in the second slide groove (72); a second hollow connecting rod (73) is arranged on the front side of the "T"-shaped block (71); a detection probe (74) is arranged at the other end of the second hollow connecting rod (73); the detection probe (74) is located above the grinding device (64) and corresponds to the grinding head of the grinding device (64).

4. The internal grinding device for small-diameter seamless pipe according to claim 3, characterized in that: The driving assembly (2) comprises a first lead screw (21) movably arranged in a mounting groove (11), one end of the first lead screw (21) being arranged on a transmission end of a first motor (20), the first motor (20) being arranged on one side of a mounting base plate (1), a driving member (41) being arranged at the bottom of the movable mounting plate (4), the driving member (41) being located in the mounting groove (11) and being threadedly arranged on the first lead screw (21), a pair of first slide rails (40) being arranged at the bottom of the movable mounting plate (4), the two first slide rails (40) being respectively arranged in two slide grooves (10).

5. The internal grinding device for small-diameter seamless pipe according to claim 4, characterized in that: The steel pipe fixing assembly (3) comprises a second motor (30) arranged on the back side of the side plate of the mounting base plate (1); after the transmission end of the second motor (30) passes through the side plate, a fixing plate (31) is arranged on the top thereof; a cross mounting groove (32) is provided on the fixing plate (31); a pair of bidirectional screws (33) are staggered in the cross mounting groove (32); each of the bidirectional screws (33) is symmetrically provided with a pair of clamping members (34); and the surface of the clamping members (34) is provided with rubber anti-slip grooves (340).

6. The internal grinding device for small-diameter seamless pipe according to claim 5, characterized in that: One end of the two bidirectional screws (33) is provided with a hexagonal inner groove (330).

7. The internal grinding device for small-diameter seamless pipe according to claim 6, characterized in that: The support assembly (12) comprises telescopic cylinders (120) arranged on both sides of the installation base plate (1), and support plates (121) are arranged on the tops of the two telescopic cylinders (120).

8. The internal grinding device for small-diameter seamless pipe according to claim 7, characterized in that: The diameter of the hollow connecting rod 1 (63) is 40 mm.

Images