Steel pipe processing machine tool

Abstract

The utility model relates to the field of machining, and particularly discloses a steel pipe machining machine tool which comprises a polishing machining table and further comprises a steel pipe clamping unit installed on the polishing machining table. The power unit drives the steel pipe clamping unit to coaxially rotate around the steel pipe; the first supporting plate is vertically and fixedly mounted on the grinding machining table; the grinding head is in a U shape wrapping the local end face of the steel pipe, and a grinding abrasive belt is detachably installed on the grinding head; and one end of the polishing supporting rod is connected with the polishing head, and the polishing head is opposite to the end face of the steel pipe. According to the scheme, the U-shaped grinding head and the end face of the steel pipe make contact with the grinding abrasive belt in sequence, one-time grinding treatment on the end face, the outer side of the end face and the inner side of the end face of the steel pipe is achieved, grinding is comprehensive and rapid, and the grinding efficiency and comprehensiveness of the end face, the outer side of the end face and the inner side of the end face of the steel pipe are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a steel pipe processing machine tool. Background Technique

[0002] As the use time of the cutting tool increases, the cutting edge will become blunt, resulting in the inability to cleanly cut the material during the cutting process, thus forming burrs; if the tool clearance of the cutting equipment is too large, the material cannot be completely cut during the cutting process, leaving flash and burrs; in the cutting process of steel pipes, it is a common phenomenon that burrs are formed at the end of the steel pipe. How to remove the burrs at the end of the steel pipe has become a common problem in pipe fitting processing.

[0003] When the existing grinding device grinds the end of the steel pipe, most of the grinding mechanisms can only fit the outer wall and the end face of the steel pipe end. It is easy to miss grinding the inner wall of the steel pipe end face. Moreover, when the grinding mechanism grinds the steel pipe end face, the burrs formed by grinding are also easy to accumulate on the inner wall of the steel pipe, resulting in incomplete grinding of the steel pipe; at this time, it is necessary to perform secondary grinding on the inner wall of the steel pipe end face, with low grinding efficiency and complicated operation, affecting the processing efficiency of the steel pipe; at the same time, when grinding steel pipes with different diameter specifications, different specifications of grinding mechanisms need to be used for grinding, and the grinding processing cost is relatively high. Content of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a steel pipe processing machine tool to solve the problem that when the grinding mechanism grinds the end face of the steel pipe, the burrs formed by grinding are also easy to accumulate on the inner wall of the steel pipe, resulting in incomplete grinding of the steel pipe.

[0005] To achieve the above purpose, the basic scheme of the utility model is as follows: A steel pipe processing machine tool includes a grinding and processing table, and further includes:

[0006] A steel pipe clamping unit, which is installed on the grinding and processing table;

[0007] A power unit for driving the steel pipe clamping unit to rotate coaxially around the steel pipe;

[0008] A first support plate, which is vertically and fixedly installed on the grinding and processing table;

[0009] A grinding head, which is in a "U" shape covering a part of the end face of the steel pipe, and a grinding abrasive belt is detachably installed on the grinding head;

[0010] A grinding support rod, one end of which is connected to the grinding head, and the grinding head is opposite to the end face of the steel pipe; a sliding groove for the horizontal sliding of the grinding support rod is provided on the first support plate, and a locking member for locking the grinding support rod is provided between the grinding support rod and the sliding groove of the first support plate.

[0011] The technical principle of the present utility model is as follows: Before grinding the steel pipe, first horizontally move the grinding support rod along the chute according to the position of the part to be ground at the end of the steel pipe, and then use the locking member for locking, so that the grinding head and the end of the steel pipe to be ground are in a relative state; when the steel pipe clamping unit clamps and fixes the steel pipe, a part of the edge of the end of the steel pipe is embedded into the "U"-shaped grinding head, so that a part of the edge of the end of the steel pipe is in contact with the abrasive belt. Then start the power unit, and the power unit drives the steel pipe clamping unit and the steel pipe to rotate coaxially, while the grinding head remains relatively stationary. At this time, the "U"-shaped grinding head and the end face of the steel pipe are in contact with the abrasive belt in sequence, realizing one-time grinding treatment of the end face, the outer side of the end face and the inner side of the end face of the steel pipe. The grinding is comprehensive and fast, improving the grinding efficiency and comprehensiveness of the end face, the outer side of the end face and the inner side of the end face of the steel pipe.

[0012] Further, the steel pipe clamping unit includes:

[0013] The second support plate is vertically and fixedly installed on the grinding and processing table;

[0014] The support ring for the steel pipe to pass through is rotatably installed on the second support plate, and the end of the support ring faces the grinding head;

[0015] A plurality of locking bolts are threadedly connected to the support ring. The axis of the locking bolt is arranged along the radial direction of the support ring, and the end of the locking bolt can abut against the outer wall of the steel pipe.

[0016] Through the above settings, the second support plate can support the rotation of the support ring driving the steel pipe, and at the same time, a plurality of locking bolts can lock the coaxial installation of the steel pipe, and the loosening and locking of the steel pipe are also convenient to adjust.

[0017] Further, the number of the locking bolts is three, and the three locking bolts are evenly arranged around the circumference of the support ring.

[0018] Through the above settings, the three locking bolts can provide a stable supporting force for the circumferential locking of the steel pipe, and the number of the locking bolts is small, and the screwing control of the locking bolts is convenient; when the steel pipe specification is adjusted, the supporting positions of two of the locking bolts can be directly adjusted according to the specification first, and only the remaining one locking bolt needs to be adjusted during locking, and the adjustment is convenient and reliable.

[0019] Further, the locking member is an "L"-shaped inserting rod. A slot for the transverse sliding of one end of the inserting rod is arranged on the top side of the first support plate. The slot is communicated with the chute. One end of the inserting rod located in the slot can be threadedly connected to the grinding support rod, and the inserting rod can abut against the top side of the first support plate.

[0020] With the above settings, when the steel pipe specifications of the next batch change, loosen the insertion rod, adjust the horizontal positions of the grinding support rod and the grinding head so that the grinding head can fit the area to be ground on the steel pipe. The position adjustment of the grinding head and the grinding support rod is convenient and reliable.

[0021] Furthermore, the longitudinal section of the upper end of the insertion rod is polygonal.

[0022] With the above settings, it is convenient for the human hand to apply force to the upper end of the insertion rod when loosening or tightening the insertion rod, which is more labor-saving and convenient.

[0023] Furthermore, the grinding head includes:

[0024] A fixed head, which is fixedly installed at the end of the grinding support rod;

[0025] An elastic insert piece. The cross-sectional profile of the elastic insert piece is "U"-shaped. A protrusion is fixedly arranged at the bottom of the elastic insert piece. An elastic wedge block with an inclined side wall is arranged at one end of the protrusion away from the elastic insert piece. A fixed embedding groove for the elastic wedge block and the protrusion to be embedded is arranged at one end of the fixed head away from the grinding support rod. The side wall of the fixed embedding groove can abut against the edge of the abrasive belt.

[0026] With the above settings, the elastic insert piece can open to adapt to the thickness of the steel pipe, so that the elastic insert piece drives the abrasive belt to fit the end face, the outer side of the end face and the inner side of the end face of the steel pipe; at the same time, when the abrasive belt needs to be replaced, the elastic wedge block and the protrusion located in the fixed embedding groove can be pulled out, and then the elastic insert piece can be removed. After the abrasive belt on the elastic insert piece is disassembled, replaced and installed, the abrasive belt can be stably installed on the fixed head in cooperation with the elastic wedge block and the protrusion, and the replacement and installation of the abrasive belt are convenient.

[0027] Furthermore, the grinding support rod is a cuboid rod shape, and the side wall of the grinding support rod abuts against both the upper and lower sides of the sliding groove.

[0028] With the above settings, the grinding support rod can stably support the grinding head without being affected by the torsion force of the steel pipe during rotation, making the grinding process more reliable. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram in the axonometric direction of a steel pipe processing machine tool in an embodiment of the present invention.

[0030] Figure 2 It is a schematic structural diagram in the top view direction of a steel pipe processing machine tool in an embodiment of the present invention.

[0031] Figure 3 It is Figure 2 a partial cross-sectional view at A-A in

[0032] In the above-mentioned drawings: grinding and processing table 10, first support plate 20, chute 201, slot 202, grinding head 30, fixed head 301, elastic insert 302, abrasive belt 303, protrusion 304, elastic wedge 305, grinding support rod 40, insertion rod 401, second support plate 50, support ring 60, flange 601, locking bolt 602, rubber wheel 70. Detailed implementation manners

[0033] The technical solutions in the present utility model will be further described below with reference to the drawings and embodiments.

[0034] This embodiment is basically as Figure 1 , Figure 2 and Figure 3 shown. An embodiment of the present utility model provides a steel pipe processing machine tool, including a grinding and processing table 10, a steel pipe clamping unit, a power unit for driving the steel pipe clamping unit to rotate coaxially around the steel pipe, a first support plate 20, a grinding head 30 and a grinding support rod 40. Multiple steel pipe clamping units and power units can be provided to facilitate the stable rotation of the steel pipe; the steel pipe clamping unit includes a second support plate 50, a support ring 60 for the steel pipe to pass through, and three locking bolts 602. The second support plate 50 is vertically and fixedly installed on the grinding and processing table 10; the second support plate 50 is fixedly installed on the second support plate 50 by bolts. The end of the support ring 60 faces the grinding head 30; the three locking bolts 602 are threadedly connected to the support ring 60. The axis of the locking bolt 602 is arranged along the radial direction of the support ring 60, and the end of the locking bolt 602 can abut against the outer wall of the steel pipe. At the same time, the three locking bolts 602 are evenly arranged around the circumference of the support ring 60.

[0035] The power unit includes a rubber wheel 70 and a motor for driving the rubber wheel 70 to rotate. The motor is fixedly installed on the lower side of the processing table, and the rubber wheel 70 is in contact with the outer wall of the support ring 60; a flange 601 is integrally formed coaxially on the outer wall of the support ring 60, and a groove for sliding contact with the flange 601 is provided on the second support plate 50.

[0036] As Figure 1 shown, the first support plate 20 is vertically and fixedly installed on the grinding and processing table 10 by bolts. The vertical plane where the first support plate 20 is located is parallel to the vertical plane where the second support plate 50 is located; a chute 201 for the horizontal sliding of the grinding support rod 40 is provided on the first support plate 20. The grinding support rod 40 is in the shape of a cuboid rod, and the side wall of the grinding support rod 40 abuts against the upper and lower sides of the chute 201.

[0037] At the same time, as Figures 1-3 shown, the grinding head 30 includes a fixed head 301 and an elastic insert 302. The fixed head 301 is welded to the left end of the grinding support rod 40; as Figure 3As shown, the cross-sectional profile of the elastic insert 302 is "U"-shaped. A protrusion 304 is welded at the right end of the elastic insert 302. An elastic wedge 305 with a beveled side wall is adhesively bonded to the end of the protrusion 304 away from the elastic insert 302. A fixing groove for the elastic wedge 305 and the protrusion 304 to be inserted into is provided at the end of the fixing head 301 away from the grinding support rod 40. The side wall of the fixing groove can abut against the edge of the abrasive belt 303; the abrasive belt 303 is wrapped around the outer wall of the elastic insert 302, and the elastic insert 302 and the abrasive belt 303 face the end face of the steel pipe.

[0038] At the same time, as Figures 1-3 shown, a locking member for locking the grinding support rod 40 is provided between the grinding support rod 40 and the sliding groove 201 of the first support plate 20. The locking member is an "L"-shaped insertion rod 401. A slot 202 for the end of the insertion rod 401 to slide horizontally is provided on the top side of the first support plate 20. The slot 202 communicates with the sliding groove 201. One end of the insertion rod 401 located in the slot 202 can be threadedly connected to the grinding support rod 40, and the insertion rod 401 can abut against the top side of the first support plate 20.

[0039] In addition, as Figure 3 shown, the longitudinal section of the upper end of the insertion rod 401 is polygonal.

[0040] When the steel pipe processing machine tool in this embodiment is in use, first adjust the support positions of two of the locking bolts 602 according to the specifications of the steel pipes to be processed in batches. At the same time, loosen the grinding support rod 40 located on the first support plate 20 by screwing the insertion rod 401, and adjust the horizontal positions of the grinding support rod 40 and the grinding head 30 according to the end face position of the steel pipe, so that the grinding head 30 faces the end face of the steel pipe after subsequent installation.

[0041] Then horizontally insert the steel pipe to be processed onto the support ring 60. A part of the end face of the steel pipe to be processed is embedded into the "U"-shaped structure of the elastic insert 302. The elastic insert 302 can open to adapt to the thickness of the steel pipe, so that the elastic insert 302 drives the abrasive belt 303 to fit against the end face, the outer side of the end face and the inner side of the end face of the steel pipe; at this time, screw the insertion rod 401 again. The insertion rod 401 is threadedly connected to the grinding support rod 40. After the insertion rod 401 abuts against the upper side of the first support plate 20, the locking of the positions of the grinding support rod 40 and the grinding head 30 is achieved; at the same time, screw the last locking bolt 602 to be locked so that the locking bolt 602 abuts tightly against the side wall of the steel pipe; overall, the locking of the positions of the steel pipe and the grinding head 30 is achieved, and then the grinding process can be carried out.

[0042] When performing grinding processing, start the motor. The motor drives the rubber wheel 70 to rotate. The rubber wheel 70 synchronously drives the support ring 60 and the steel pipe to rotate coaxially. At this time, the grinding head 30 remains relatively stationary. The end face of the steel pipe comes into contact with the abrasive belt 303 in sequence, realizing one-time grinding treatment of the end face, the outer side of the end face, and the inner side of the end face of the steel pipe. The grinding is comprehensive and fast, improving the grinding efficiency of the end face, the outer side of the end face, and the inner side of the steel pipe.

[0043] When performing end face grinding on the next steel pipe, if it is a steel pipe of the same specification, only loosen one of the locking bolts 602, and then the ground steel pipe can be removed, and the steel pipe to be ground can be replaced, and the grinding efficiency can be significantly improved. When the specification of the steel pipes in the next batch changes, by adjusting the locking bolt 602 and the insertion rod 401, the steel pipes of different specifications can be locked. Also, the horizontal positions of the grinding support rod 40 and the grinding head 30 can be adjusted so that the grinding head 30 can fit the area to be ground on the steel pipe for grinding processing. The adjustment is convenient, simple, and reliable, and can reduce the grinding cost of steel pipes of different specifications.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A steel pipe processing machine tool, including a grinding and processing table, characterized in that, It further includes: A steel pipe clamping unit, which is installed on the grinding and processing table; A power unit for driving the steel pipe clamping unit to rotate coaxially around the steel pipe; A first support plate, which is vertically and fixedly installed on the grinding and processing table; A grinding head, which is in a "U" shape wrapping a part of the end face of the steel pipe, and a grinding abrasive belt is detachably installed on the grinding head; A grinding support rod, one end of which is connected to the grinding head, and the grinding head is opposite to the end face of the steel pipe; a sliding groove for the horizontal sliding of the grinding support rod is provided on the first support plate, and a locking member for locking the grinding support rod is provided between the grinding support rod and the sliding groove of the first support plate.

2. The pipe processing machine tool according to claim 1, characterized in that, The steel pipe clamping unit includes: A second support plate, which is vertically and fixedly installed on the grinding and processing table; A support ring for the steel pipe to pass through, which is rotatably installed on the second support plate, and the end of the support ring is opposite to the grinding head; A plurality of locking bolts, which are threadedly connected to the support ring, the axes of the locking bolts are arranged along the radial direction of the support ring, and the ends of the locking bolts can abut against the outer wall of the steel pipe.

3. A steel pipe processing machine tool according to claim 2, characterized in that, The number of the locking bolts is three, and the three locking bolts are evenly arranged circumferentially around the support ring.

4. The pipe processing machine tool according to claim 3, characterized in that, The locking member is an "L"-shaped insertion rod, and a slot for the horizontal sliding of one end of the insertion rod is provided at the top side of the first support plate. The slot is communicated with the sliding groove. One end of the insertion rod located in the slot can be threadedly connected to the grinding support rod, and the insertion rod can abut against the top side of the first support plate.

5. The pipe processing machine tool according to claim 4, wherein, The longitudinal section of the upper end of the insertion rod is polygonal.

6. The pipe processing machine tool according to claim 5, characterized in that, The grinding head includes: A fixed head, which is fixedly installed at the end of the grinding support rod; An elastic insertion piece, the cross-sectional contour of which is in a "U" shape. A protrusion is fixedly provided at the bottom of the elastic insertion piece. An elastic wedge block with an inclined side wall is provided at one end of the protrusion away from the elastic insertion piece. A fixed embedding groove for the elastic wedge block and the protrusion to be embedded is provided at the end of the fixed head away from the grinding support rod, and the side wall of the fixed embedding groove can abut against the edge of the grinding abrasive belt.

7. A steel pipe processing machine tool according to any one of claims 1-6, characterized in that, The grinding support rod is in a cuboid rod shape, and the side wall of the grinding support rod abuts against the upper and lower sides of the sliding groove.

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