CN214775063U - Device for drawing end face contour line of steel pipe - Google Patents

Abstract

The utility model discloses a draw device of steel pipe terminal surface outline line belongs to mechanical technical field. The utility model provides a device of drawing steel pipe terminal surface outline line is by an extension board, a bottom plate, two caps, two penholders, a support, two rolls, four bearing, a first support, two second supports, two screws, two refills, two first springs, two second springs, a drawing, four magnets, four antifriction bearing, eight first wheels, two second wheels, four first hinges, two second hinges, twenty two screw rods and twenty two nut components, the device can draw the terminal surface outline line of steel pipe fast and effectively, with the save of convenient data, low in manufacturing cost has, and is easy to operate, draw effectual characteristics.

Description

Device for drawing end face contour line of steel pipe

Technical Field

The utility model belongs to the technical field of machinery, concretely relates to draw device of steel pipe terminal surface outline line.

Background

At present, in seamless steel pipe production enterprises, hot rolling perforation, continuous pipe rolling and tension reducing pipe making processes are generally adopted, and in order to improve the comprehensive performance of the steel pipe, the steel pipe needs to be subjected to relevant heat treatment; under the influence of self gravity, rolling force or uneven cooling and other factors, the steel pipe always has quality problems of similar bending or ellipse and the like along the axial direction, and simultaneously, the pipe end also has out-of-roundness to a certain degree; when the pipeline steel pipe is subjected to butt welding, an internal dislocation height is generated between the two pipe bodies, which brings certain difficulty to welding construction; the oil well casing can generate black skin buckles when being subjected to thread machining, so that the connection strength of the oil well casing can be reduced; although many steel pipe manufacturing enterprises can strictly measure the external dimensions of the end faces of the steel pipes, the measurement data cannot be recorded and stored.

Document CN204102451U discloses a device for drawing cam profile, which mainly comprises a frame, a main transmission part, a fixed disc, a translation plate, a synchronous belt tensioning mechanism, an eccentric mechanism, a driven member mechanism and a motion profile plate, and the device can draw the cam profile curve based on the displacement curve of the driven member, but cannot draw the profile line of the end face of the steel pipe.

Document CN204102462U discloses a teaching aid for demonstrating the curve of a cam profile drawn by a reversal method, which mainly comprises a frame, a cross-shaped bracket, a bottom shaft gear, an outer shaft gear, an inner shaft, a central gear, a rack plate, a pin, a painting brush and a drawing board.

Document CN204315162U discloses a cam mechanism inversion method design principle demonstration and contour line drawing instrument, which mainly comprises a frame, a rotating mechanism, a demonstration drawing mechanism, a controller, a control motor, a transmission shaft, a synchronous turntable, a disc cam, a guide rail frame, a push rod, a painting brush and a painting board.

SUMMERY OF THE UTILITY MODEL

To problem one or more that exist among the prior art, the utility model provides a draw device of steel pipe end face outline line, it includes: the pen rack comprises a support plate (2), a bottom plate (7), two pen caps (4), two pen racks (5), a support (6), two rollers (8), four bearing supports (10), a first support (14), two second supports (16), two screws (20), two pen refills (18), two first springs (a19), two second springs (b19), a drawing (17), four magnets (3), four rolling bearings (11), eight first wheels (a13), two second wheels (b13), four first hinges (a15), two second hinges (b15), twenty-two screws (1) and twenty-two nuts (9); wherein:

the support plate (2) is formed by connecting a first main body (201) and a first boss (202); the first main body (201) and the first boss (202) are both of a cuboid-shaped symmetrical structure, and the first boss (202) is vertically arranged at the upper end of the first main body (201); the first main body (201) is symmetrically provided with two cylindrical first through holes (203), the screw (1) penetrates through the first through holes (203), and one end of the screw (1) is screwed with the nut (9);

the pen cap (4) is of a cylindrical symmetrical structure; one end of the pen cap (4) is provided with a first screw hole (402), and a first thread (505) of the pen rack (5) is screwed in the first screw hole (402); the other end of the pen cap (4) is provided with a conical second through hole (401), and the pen core (18) penetrates through the second through hole (401);

the pen rack (5) is formed by connecting a second main body (504), a second boss (501) and a third boss (503); the second main body (504) is of a rectangular symmetrical structure, the second boss (501) and the third boss (503) are of regular octagonal symmetrical structures, and the second boss (501) and the third boss (503) are respectively arranged on two sides of the second main body (504); a first cylindrical groove (506) is formed in the axis position of the second boss (501), and the refill (18) and the second spring (b19) penetrate through the first groove (506); the end face of the first groove (506) is provided with a first thread (505), and the pen cap (4) is screwed at the position of the first thread (505); a cylindrical third through hole (502) is formed in the side face of the third boss (503), and an insertion section (2002) of the screw (20) penetrates through the third through hole (502) and is used for positioning the pen rack (5);

the support (6) is formed by connecting a third main body (601) and a fourth boss (602); the third main body (601) and the fourth boss (602) are both rectangular parallelepiped symmetrical structures, and the fourth boss (602) is vertically arranged at the upper end of the third main body (601); a cylindrical fourth through hole (603) is formed in the axis position of the fourth boss (602), and the first support (14) and the steel pipe are arranged in the fourth through hole (603) in a penetrating manner; the inner surface of the fourth through hole (603) is symmetrically provided with two annular second grooves (605) along the circumferential direction, and the first wheel (a13) is placed in the second grooves (605); four cylindrical fifth through holes (604) are symmetrically formed in the third main body (601), the screw (1) penetrates through the fifth through holes (604), and one end of the screw (1) is screwed with the nut (9);

the bottom plate (7) is of a cuboid plate-shaped symmetrical structure; the bottom plate (7) is symmetrically provided with two cylindrical sixth through holes (701), the screw (1) penetrates through the sixth through holes (701), and one end of the screw (1) is screwed with the nut (9); four cylindrical seventh through holes (702) are symmetrically formed in the bottom plate (7), the screw (1) penetrates through the seventh through holes (702), and one end of the screw (1) is screwed with the nut (9); the bottom plate (7) is also symmetrically provided with four groups of sixteen cylindrical eighth through holes (703), the screw rod (1) penetrates through the eighth through holes (703), and one end of the screw rod (1) is screwed with the nut (9);

the roller (8) is formed by connecting roller heads (803) at two ends with a roller body (802) in the middle; the roller head (803) is a cylindrical symmetrical structure and is used for penetrating the rolling bearing (11); the roller body (802) is of a cylindrical symmetrical structure, an annular roller groove (801) is formed in the circumferential direction of the roller body (802), and a steel pipe penetrates through the roller groove (801);

the bearing support (10) is formed by connecting a fourth main body (1001) and a fifth boss (1002); the fourth main body (1001) and the fifth boss (1002) are both of a cuboid-shaped symmetrical structure, and the fifth boss (1002) is vertically arranged at the upper end of the fourth main body (1001); the fifth boss (1002) is provided with a cylindrical third groove (1004), and the rolling bearing (11) is arranged in the third groove (1004); a cylindrical ninth through hole (1003) is formed in the axis position of the third groove (1004), and a roller head (803) of the roller (8) penetrates through the ninth through hole (1003); the fourth main body (1001) is symmetrically provided with four cylindrical tenth through holes (1005), the screw (1) penetrates through the tenth through holes (1005), and one end of the screw (1) is screwed with the nut (9);

the first bracket (14) is of a cuboid symmetrical structure; eight cuboid-shaped fourth grooves (1401) are symmetrically formed in four corners of the first support (14), and the first wheels (a13) penetrate through the fourth grooves (1401); both sides of each fourth groove (1401) are provided with a cylindrical eleventh through hole (1402), and the first hinge (a15) penetrates through the eleventh through hole (1402); a twelfth through hole (1403) in a cuboid shape is formed in the center of the first support (14), and the pen rack (5) and the steel pipe are arranged in the twelfth through hole (1403) in a penetrating mode; two cuboid-shaped fifth grooves (1404) are symmetrically formed in the inner surface of the twelfth through hole (1403), and the first spring (a19) and the second support (16) penetrate through the fifth grooves (1404);

the second bracket (16) is formed by connecting a fifth main body (1602) and a sixth boss (1604), the fifth main body (1602) and the sixth boss (1604) are both of a cuboid-shaped symmetrical structure, and the sixth boss (1604) is arranged at the front end of the fifth main body (1602); the sixth boss (1604) is provided with a first through groove (1606) in a rectangular shape, and the second wheel (b13) penetrates through the first through groove (1606); both sides of the first through groove (1606) are provided with a cylindrical thirteenth through hole (1603), and the second hinge (b15) penetrates through the thirteenth through hole (1603); the fifth main body (1602) is provided with an eight-prism-shaped fourteenth through hole (1605), and a third boss (503) of the pen rack (5) penetrates through the fourteenth through hole (1605); the fifth main body (1602) is provided with a cylindrical second screw hole (1601), and the screw (20) is screwed in the second screw hole (1601);

the screw (20) is composed of a force application end (2001) and an insertion section (2002) which are coaxially connected, wherein the force application end (2001) and the insertion section (2002) are both in cylindrical symmetrical structures; the force application end (2001) is provided with a second rectangular through groove (2004), and the second through groove (2004) is used for penetrating a linear screwdriver; the inserting section (2002) is used for penetrating through a third through hole (502) of the pen rack (5), one end, close to the force application end (2001), of the inserting section (2002) is provided with a second thread (2003), and the second thread (2003) is used for screwing a second screw hole (1601) of the second support (16);

the drawing (17), the pen core (18), the first spring (a19), the second spring (b19), the magnet (3), the rolling bearing (11), the first wheel (a13), the second wheel (b13), the first hinge (a15), the second hinge (b15), the screw (1) and the nut (9) are all standard parts.

The device of drawing steel pipe terminal surface outline line that provides based on above technical scheme is by a extension board, a bottom plate, two caps, two penholders, a support, two rolls, four bearing, a first support, two second supports, two screws, two refills, two first springs, two second springs, a drawing, four magnets, four antifriction bearing, eight first wheels, two second wheels, four first hinges, two second hinges, twenty two screw rods and twenty two nuts are constituteed, and the material is ordinary, and make things convenient for the machine-shaping, consequently, the utility model discloses the manufacturing cost of device is lower relatively.

When the device is used, the device is arranged in front of a conveying roller way, so that the steel pipe is ensured to be aligned with the roller groove of the roller, two first springs are compressed at the same time, and two second support vehicles are respectively retracted into the fifth grooves of the first supports; rotating the two rollers to send the steel pipe into the roller grooves, stopping rotating the two rollers when the steel pipe passes through the two second support carts and does not contact the second main bodies of the two pen racks, arranging the two second wheels on the steel pipe, and rotating the first support cart for 180 degrees along the two second grooves of the support; therefore, the operation of the device of the utility model is relatively simple.

In the device of the utility model, the combined use of the first support vehicle and the support can realize that the first support vehicle rotates according to a preset track; the first support trolley, the first spring and the second support trolley are used together, so that the second wheel can be perfectly fitted with the surface of the steel pipe; the combination use of the bottom plate, the bearing support, the rolling bearing and the roller can realize that the steel pipe moves according to a preset track; the support plate, the magnet, the drawing, the pen core, the second spring, the pen cap and the pen rack are used in a combined mode, and the contour line of the end face of the steel pipe can be drawn accurately; therefore, the utility model discloses the drawing effect of device is relatively better.

Through the utility model provides a draw device of steel pipe terminal surface outline line can draw the terminal surface outline line of steel pipe fast and effectively to make things convenient for the save of data, the utility model discloses the device has low in manufacturing cost, easy operation, draws effectual characteristics.

Drawings

Fig. 1 is a schematic view of a front view structure of the device for drawing a contour line of an end face of a steel pipe provided by the present invention;

fig. 2 is a left side view structure diagram of the device for drawing the end face contour line of the steel pipe provided by the utility model;

fig. 3 is a schematic view of a top view structure of the device for drawing a contour line of an end face of a steel pipe provided by the present invention;

fig. 4 is a left side view structural diagram of the support plate provided by the present invention;

fig. 5 is a schematic top view of the support plate according to the present invention;

fig. 6 is a left-side view structural schematic diagram of the pen cap provided by the present invention;

fig. 7 is a schematic diagram of a right-view structure of the pen cap according to the present invention;

fig. 8 is a schematic front view of the pen rack provided by the present invention;

fig. 9 is a schematic diagram of a right-view structure of the pen rack provided by the present invention;

fig. 10 is a schematic top view of the pen rack provided by the present invention;

fig. 11 is a left side view structural diagram of the support provided by the present invention;

fig. 12 is a schematic top view of the support according to the present invention;

fig. 13 is a schematic top view of the bottom plate according to the present invention;

fig. 14 is a left side view structural schematic diagram of the roll provided by the present invention;

fig. 15 is a schematic front view of the bearing support according to the present invention;

fig. 16 is a schematic top view of the bearing support according to the present invention;

fig. 17 is a front view schematically illustrating the structure of the first bracket and the first wheel after being assembled according to the present invention;

fig. 18 is a left side view schematic structure of the first bracket and the first wheel after being assembled according to the present invention;

fig. 19 is a schematic top view of the first bracket and the first wheel assembled according to the present invention;

fig. 20 is a schematic front view of a second bracket according to the present invention;

fig. 21 is a left side view structural schematic diagram of a second bracket provided by the present invention;

fig. 22 is a schematic top view of a second bracket according to the present invention;

fig. 23 is a left side view structural schematic diagram of the screw provided by the present invention;

fig. 24 is a schematic top view of the pen holder, the second spring, the pen core and the cap of the present invention before assembly;

fig. 25 is a left side view of the first carriage and the support base of the present invention after assembly;

fig. 26 is a schematic cross-sectional view of the first carriage and the support base of the present invention taken along the plane a-a after assembly;

fig. 27 is a left side view of the first carriage, the first spring, the screw, the second carriage and the pen rack of the present invention before assembly;

fig. 28 is a schematic top view of the second carriage, the pen holder, the screw, the second spring, the pen core and the pen cap according to the present invention after assembly;

description of reference numerals: 1-a screw; 2-a support plate; 201-a first body; 202-a first boss; 203-a first via; 3-a magnet; 4-a pen cap; 401 — a second via; 402-a first screw hole; 5-a pen rack; 501-a second boss; 502-third via; 503-a third boss; 504-a second body; 505-a first thread; 506-a first groove; 6-support; 601-a third body; 602-a fourth boss; 603-a fourth via; 604-a fifth via; 605-a second recess; 7-a bottom plate; 701-sixth through hole; 702-a seventh via; 703-an eighth via; 8-rolling; 801-roller groove; 802-roll body; 803-roll head; 9-a nut; 10-a bearing support; 1001-fourth body; 1002-a fifth boss; 1003-ninth via; 1004 — a third groove; 1005-tenth via; 11-rolling bearings; 12-a steel pipe; a13 — first round; b13 — second round; 14-a first scaffold; 1401-a fourth groove; 1402-eleventh via hole; 1403-twelfth via; 1404-a fifth recess; a 15-first hinge; b 15-second hinge; 16-a second scaffold; 1601-a second screw hole; 1602-a fifth body; 1603-thirteenth via; 1604-a sixth boss; 1605-a fourteenth through hole; 1606-a first through slot; 17-drawings; 18-a cartridge; a 19-first spring; b 19-second spring; 20-screws; 2001-force application end; 2002-an insertion segment; 2003-a second thread; 2004-second through groove.

Detailed Description

The following detailed description of the present invention is provided by way of examples and drawings, which are only for the understanding of the present invention and are not intended to limit the present invention.

As shown in fig. 1-4, the device for drawing the end face contour line of the steel tube provided by the present invention comprises a support plate 2, a bottom plate 7, two pen caps 4, two pen holders 5, a support 6, two rollers 8, four bearing supports 10, a first support 14, two second supports 16, two screws 20, two pen refills 18, two first springs a19, two second springs b19, a drawing 17, four magnets 3, four rolling bearings 11, eight first wheels a13, two second wheels b13, four first hinges a15, two second hinges b15, twenty two screws 1, and twenty two nuts 9.

As shown in fig. 4 and 5, the strip 2 is formed by connecting a first main body 201 and a first boss 202; the first main body 201 and the first boss 202 are both rectangular parallelepiped symmetrical structures, and the first boss 202 is vertically arranged at the upper end of the first main body 201; the first main body 201 is symmetrically provided with two cylindrical first through holes 203, the screw rod 1 penetrates through the first through holes 203, and one end of the screw rod 1 is screwed with the nut 9.

As shown in fig. 6 and 7, the cap 4 has a cylindrical symmetrical structure; one end of the pen cap 4 is provided with a first screw hole 402, and a first thread 505 of the pen holder 5 is screwed in the first screw hole 402; the other end of the cap 4 is provided with a second through hole 401 in a conical shape, and the refill 18 is inserted into the second through hole 401.

As shown in fig. 8-10, the pen rack 5 is formed by connecting a second main body 504, a second boss 501 and a third boss 503; the second body 504 is a rectangular symmetrical structure, the second boss 501 and the third boss 503 are both regular octagonal symmetrical structures, and the second boss 501 and the third boss 503 are respectively arranged on two sides of the second body 504; a first cylindrical groove 506 is formed in the axial position of the second boss 501, and the refill 18 and the second spring b19 penetrate through the first groove 506; the end surface of the first groove 506 is provided with a first thread 505, and the pen cap 4 is screwed at the first thread 505; a cylindrical third through hole 502 is formed in the side surface of the third boss 503, and an insertion section 2002 of the screw 20 is inserted into the third through hole 502 for positioning the pen holder 5.

As shown in fig. 11, 12 and 26, the support 6 is formed by connecting a third main body 601 and a fourth boss 602; the third main body 601 and the fourth boss 602 are both rectangular parallelepiped symmetrical structures, and the fourth boss 602 is vertically arranged at the upper end of the third main body 601; a cylindrical fourth through hole 603 is formed in the axis position of the fourth boss 602, and the first support 14 and the steel pipe 12 are arranged in the fourth through hole 603 in a penetrating manner; two circular second grooves 605 are symmetrically formed in the inner surface of the fourth through hole 603 along the circumferential direction, and the first wheel a13 is placed in the second grooves 605; the third body 601 is symmetrically provided with four cylindrical fifth through holes 604, the screw 1 penetrates through the fifth through holes 604, and one end of the screw 1 is screwed with the nut 9.

As shown in fig. 13, the bottom plate 7 is a rectangular plate-shaped symmetrical structure; the bottom plate 7 is symmetrically provided with two cylindrical sixth through holes 701, the screw rod 1 penetrates through the sixth through holes 701, and one end of the screw rod 1 is screwed with the nut 9; the bottom plate 7 is symmetrically provided with four cylindrical seventh through holes 702, the screw rod 1 penetrates through the seventh through holes 702, and one end of the screw rod 1 is screwed with the nut 9; the bottom plate 7 is further symmetrically provided with four groups of sixteen cylindrical eighth through holes 703, the screw rod 1 penetrates through the eighth through holes 703, and one end of the screw rod 1 is screwed with the nut 9.

As shown in fig. 14, the roller 8 is composed of a roller head 803 at both ends and a roller body 802 in the middle; the roller head 803 is a cylindrical symmetrical structure and is used for penetrating the rolling bearing 11; the roller body 802 is a cylindrical symmetrical structure, an annular roller groove 801 is formed in the circumferential direction of the roller body 802, and the steel pipe 12 penetrates through the roller groove 801.

As shown in fig. 15 and 16, the bearing support 10 is formed by connecting a fourth main body 1001 and a fifth boss 1002; the fourth main body 1001 and the fifth boss 1002 are both rectangular parallelepiped symmetrical structures, and the fifth boss 1002 is vertically arranged at the upper end of the fourth main body 1001; the fifth boss 1002 is provided with a cylindrical third groove 1004, and the rolling bearing 11 is installed in the third groove 1004; a cylindrical ninth through hole 1003 is formed in the axial position of the third groove 1004, and a roller head 803 of the roller 8 penetrates through the ninth through hole 1003; the fourth main body 1001 is symmetrically provided with four cylindrical tenth through holes 1005, the screw rod 1 penetrates through the tenth through holes 1005, and one end of the screw rod 1 is screwed with the nut 9.

As shown in fig. 17, 18, 19 and 26, the first bracket 14 has a rectangular parallelepiped symmetrical structure; eight rectangular fourth grooves 1401 are symmetrically formed at four corners of the first bracket 14, and the first wheels a13 penetrate through the fourth grooves 1401; both sides of each fourth groove 1401 are provided with a cylindrical eleventh through hole 1402, and the first hinge a15 penetrates through the eleventh through hole 1402; a twelfth through hole 1403 in a rectangular shape is formed in the center of the first support 14, and the pen rack 5 and the steel tube are inserted through the twelfth through hole 1403; two rectangular fifth grooves 1404 are symmetrically formed in the inner surface of the twelfth through hole 1403, and the first spring a19 and the second bracket 16 penetrate through the fifth grooves 1404.

As shown in fig. 20 to fig. 22, the second bracket 16 is formed by connecting a fifth body 1602 and a sixth boss 1604, the fifth body 1602 and the sixth boss 1604 are both rectangular parallelepiped-shaped and symmetrical structures, and the sixth boss 1604 is disposed at the front end of the fifth body 1602; the sixth boss 1604 has a first through groove 1606 in a rectangular parallelepiped shape, and the second wheel b13 passes through the first through groove 1606; both sides of the first through groove 1606 are provided with a cylindrical thirteenth through hole 1603, and the second hinge b15 penetrates through the thirteenth through hole 1603; the fifth body 1602 is provided with an eighth through hole 1605 in a regular prism shape, and the third boss 503 of the pen holder 5 is inserted into the fourteenth through hole 1605; the fifth body 1602 defines a cylindrical second screw hole 1601, and the screw 20 is screwed into the second screw hole 1601.

As shown in fig. 23, the screw 20 is composed of a force application end 2001 and an insertion section 2002 which are coaxially connected, and both the force application end 2001 and the insertion section 2002 are cylindrical and symmetrical structures; the force application end 2001 is provided with a second through groove 2004 in a rectangular shape, and the second through groove 2004 is used for penetrating a linear screwdriver; the insertion section 2002 is used for penetrating through the third through hole 502 of the pen rack 5, one end of the insertion section 2002, which is close to the force application end 2001, is provided with a second thread 2003, and the second thread 2003 is used for screwing a second screw hole 1601 of the second bracket 16.

The drawing sheet 17, the pen refill 18, the first spring a19, the second spring b19, the magnet 3, the rolling bearing 11, the first wheel a13, the second wheel b13, the first hinge a15, the second hinge b15, the screw 1 and the nut 9 referred to above are all standard parts.

The utility model provides an assembly process of drawing device of steel pipe terminal surface outline line:

as shown in fig. 1 to 28, the bottom plate 7 is first disposed on a mounting table, then the support 6 is disposed on the bottom plate 7, it is ensured that the four fifth through holes 604 of the support 6 are aligned with the four seventh through holes 702 of the bottom plate 7, then one screw 1 is respectively inserted into the four aligned through holes, and then one nut 9 is screwed onto the other end of each of the four screws 1, so that the support 6 and the bottom plate 7 can be assembled;

then, the first bracket 14 is arranged in the fourth through hole 603 of the support 6, eight fourth grooves 1401 of the first bracket 14 are ensured to be aligned with two second grooves 605 of the support 6, then one first wheel a13 is respectively arranged in the eight fourth grooves 1401 of the first bracket 14, the axle center hole of the eight first wheels a13 is ensured to be aligned with four eleventh through holes 1402 of the first bracket 14, and then one first hinge a15 is respectively arranged in the through holes in the four pairs, so that the first bracket 14 and the eight first wheels a13 can be assembled into a first bracket vehicle in the fourth through hole 603 of the support 6;

then, respectively penetrating through the two first through grooves 1606 of the two second brackets 16 to form one second wheel b13, ensuring that the axle center hole of the two second wheels b13 is aligned with the four thirteenth through holes 1603 of the two second brackets 16, and then respectively installing one second hinge b15 in the through holes of the two pairs, so that the two second brackets 16 and the two second wheels b13 can be assembled into two second bracket vehicles;

then, the two third bosses 503 of the two pen racks 5 are respectively inserted into the two fourteenth through holes 1605 of the two second brackets 16, so as to ensure that the two third through holes 502 of the two pen racks 5 are aligned with the two second screw holes 1601 of the two second brackets 16, and then the second threads 2003 of the two screws 20 are screwed into the two second screw holes 1601, so as to ensure that the insertion sections 2002 of the two screws 20 are respectively inserted into the two third through holes 502 of the two pen racks 5, and then the two first springs a19 and the two second bracket carts are sequentially inserted into the two fifth grooves 1404 of the first bracket 14, so that the first bracket cart, the two first springs a19, the two second bracket carts and the two pen racks 5 can be assembled;

then, the two second springs b19 and the two pen cores 18 are sequentially arranged in the two first grooves 506 of the two pen racks 5 in a penetrating manner, and then the two pen caps 4 are screwed on the first threads 505 of the two pen racks 5 through the two first screw holes 402, so that the heads of the two pen cores 18 can penetrate through the two second through holes 401 of the two pen caps 4, and thus, the two second springs b19, the two pen cores 18, the two pen racks 5 and the two pen caps 4 can be assembled;

then, installing one rolling bearing 11 in each of the four third grooves 1004 of the four bearing supports 10, then, arranging the four bearing supports 10 on the bottom plate 7, ensuring that the four third grooves 1004 of the four bearing supports 10 are oppositely arranged, then, respectively penetrating four roller heads 803 of the two rollers 8 into the four rolling bearings 11 which are oppositely arranged, ensuring that sixteen tenth through holes 1005 of the four bearing supports 10 are aligned with sixteen eighth through holes 703 of the bottom plate 7, then, respectively penetrating one screw rod 1 in the sixteen groups of aligned through holes, and then, respectively screwing one nut 9 at the other end of each sixteen screw rods 1, so that the two rollers 8, the four rolling bearings 11, the four bearing supports 10 and the bottom plate 7 can be assembled;

then the support plate 2 is arranged on the bottom plate 7, two first through holes 203 of the support plate 2 are ensured to be aligned with two sixth through holes 701 of the bottom plate 7, then one screw rod 1 is respectively arranged in the two groups of aligned through holes in a penetrating mode, then the other ends of the two screw rods 1 are respectively screwed with one nut 9, then one drawing 17 is laid on the first boss 202 of one side, facing the support 6, of the support plate 2, and then four magnets 3 are arranged on four corners of the drawing 17, so that the whole device is assembled and can be put into use.

The utility model provides a draw steel pipe end face outline's device's theory of operation:

as shown in fig. 27, since the two first springs a19 and the two second carriages are respectively inserted into the two fifth grooves 1404 of the first carriage 14, and both the two second carriages contact the side surface of the steel pipe 12 through the respective second wheels b13, the two second carriages can realize that the two second wheels b13 can always keep the round-circumscribed relationship with the steel pipe 12 by the elastic force of the two first springs a19 regardless of whether the side surface of the steel pipe 12 has a pit or protrusion defect; as shown in fig. 28, since the pen core 18 is coaxial with the second boss 501 of the pen holder 5, the distance between the axis PQ of the second boss 501 and the axis MN of the third boss 503 should be equal to the distance between the axis MN of the third boss 503 and the contact point of the second wheel b13 and the steel tube 12, so that the end contour of the steel tube 12 can be accurately drawn on the drawing sheet 17 through the pen core 18.

The utility model provides a draw steel pipe end face contour line's device's use:

as shown in fig. 1-3, the assembled device for drawing the end face contour line of the steel pipe of the present invention is firstly disposed in front of the roller conveyor, so as to ensure that the two rollers 8 are aligned with the roller conveyor, and thus, the steel pipe 12 is aligned with the roller groove 801 of the roller 8, and then the two first springs a19 are compressed at the same time, so as to retract the two second carriages into the two fifth grooves 1404 of the first carriage 14, respectively, thereby creating conditions for the penetration of the steel pipe 12;

then, rotating the two rollers 8 at a constant speed, feeding the steel pipe 12 into the roller grooves 801 of the two rollers 8, stopping rotating the two rollers 8 when the steel pipe 12 passes through the two second carriage trucks and does not contact the two second bodies 504 of the two pen carriages 5, then arranging the two second wheels b13 mounted on the two second carriage trucks on the steel pipe 12, and then rotating the first carriage truck 180 degrees along the two second grooves 605 of the support 6;

in this process, the two second wheels b13 can roll at a constant speed for half a circle along the side surface of the steel tube 12, and the two second carriages can realize that the two second wheels b13 can always keep the circumcircle-circumscribed relation with the side surface of the steel tube 12 by the elastic force of the two first springs a19, so that the end surface contour line of the steel tube 12 can be accurately drawn on the drawing 17 through the two pen cores 18.

Supplementary explanation: the device for drawing the end face contour line of the steel pipe provided by the utility model adopts a symmetrical structure to design, firstly, the first springs a19 are slightly compressed in advance, namely, a compression force is exerted on the first springs a19 in advance, so as to ensure that the second wheels b13 can always keep the round external tangent relation with the steel pipe 12; secondly, the two second springs b19 should be slightly compressed in advance, that is, a compression force should be applied to the two second springs b19 in advance, so as to ensure that the two pen cores 18 can contact the drawing 17 by virtue of elastic force and can be drawn freely on the drawing 17.

Can see through the embodiment, adopt the utility model provides a draw device of steel pipe terminal surface outline line can draw the terminal surface outline line of steel pipe fast and effectively to make things convenient for the save of data, the utility model discloses the device has low in manufacturing cost, easy operation, draws effectual characteristics.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. The utility model provides a draw device of steel pipe end face contour line which characterized in that, draw device of steel pipe end face contour line includes: the pen rack comprises a support plate (2), a bottom plate (7), two pen caps (4), two pen racks (5), a support (6), two rollers (8), four bearing supports (10), a first support (14), two second supports (16), two screws (20), two pen refills (18), two first springs (a19), two second springs (b19), a drawing (17), four magnets (3), four rolling bearings (11), eight first wheels (a13), two second wheels (b13), four first hinges (a15), two second hinges (b15), twenty-two screws (1) and twenty-two nuts (9); wherein:

the support plate (2) is formed by connecting a first main body (201) and a first boss (202); the first main body (201) and the first boss (202) are both of a cuboid-shaped symmetrical structure, and the first boss (202) is vertically arranged at the upper end of the first main body (201); the first main body (201) is symmetrically provided with two cylindrical first through holes (203), the screw (1) penetrates through the first through holes (203), and one end of the screw (1) is screwed with the nut (9);

the pen cap (4) is of a cylindrical symmetrical structure; one end of the pen cap (4) is provided with a first screw hole (402), and a first thread (505) of the pen rack (5) is screwed in the first screw hole (402); the other end of the pen cap (4) is provided with a conical second through hole (401), and the pen core (18) penetrates through the second through hole (401);

the pen rack (5) is formed by connecting a second main body (504), a second boss (501) and a third boss (503); the second main body (504) is of a rectangular symmetrical structure, the second boss (501) and the third boss (503) are of regular octagonal symmetrical structures, and the second boss (501) and the third boss (503) are respectively arranged on two sides of the second main body (504); a first cylindrical groove (506) is formed in the axis position of the second boss (501), and the refill (18) and the second spring (b19) penetrate through the first groove (506); the end face of the first groove (506) is provided with a first thread (505), and the pen cap (4) is screwed at the position of the first thread (505); a cylindrical third through hole (502) is formed in the side face of the third boss (503), and an insertion section (2002) of the screw (20) penetrates through the third through hole (502) and is used for positioning the pen rack (5);

the support (6) is formed by connecting a third main body (601) and a fourth boss (602); the third main body (601) and the fourth boss (602) are both rectangular parallelepiped symmetrical structures, and the fourth boss (602) is vertically arranged at the upper end of the third main body (601); a cylindrical fourth through hole (603) is formed in the axis position of the fourth boss (602), and the first support (14) and the steel pipe are arranged in the fourth through hole (603) in a penetrating manner; the inner surface of the fourth through hole (603) is symmetrically provided with two annular second grooves (605) along the circumferential direction, and the first wheel (a13) is placed in the second grooves (605); four cylindrical fifth through holes (604) are symmetrically formed in the third main body (601), the screw (1) penetrates through the fifth through holes (604), and one end of the screw (1) is screwed with the nut (9);

the bottom plate (7) is of a cuboid plate-shaped symmetrical structure; the bottom plate (7) is symmetrically provided with two cylindrical sixth through holes (701), the screw (1) penetrates through the sixth through holes (701), and one end of the screw (1) is screwed with the nut (9); four cylindrical seventh through holes (702) are symmetrically formed in the bottom plate (7), the screw (1) penetrates through the seventh through holes (702), and one end of the screw (1) is screwed with the nut (9); the bottom plate (7) is also symmetrically provided with four groups of sixteen cylindrical eighth through holes (703), the screw rod (1) penetrates through the eighth through holes (703), and one end of the screw rod (1) is screwed with the nut (9);

the roller (8) is formed by connecting roller heads (803) at two ends with a roller body (802) in the middle; the roller head (803) is a cylindrical symmetrical structure and is used for penetrating the rolling bearing (11); the roller body (802) is of a cylindrical symmetrical structure, an annular roller groove (801) is formed in the circumferential direction of the roller body (802), and a steel pipe penetrates through the roller groove (801);

the bearing support (10) is formed by connecting a fourth main body (1001) and a fifth boss (1002); the fourth main body (1001) and the fifth boss (1002) are both of a cuboid-shaped symmetrical structure, and the fifth boss (1002) is vertically arranged at the upper end of the fourth main body (1001); the fifth boss (1002) is provided with a cylindrical third groove (1004), and the rolling bearing (11) is arranged in the third groove (1004); a cylindrical ninth through hole (1003) is formed in the axis position of the third groove (1004), and a roller head (803) of the roller (8) penetrates through the ninth through hole (1003); the fourth main body (1001) is symmetrically provided with four cylindrical tenth through holes (1005), the screw (1) penetrates through the tenth through holes (1005), and one end of the screw (1) is screwed with the nut (9);

the first bracket (14) is of a cuboid symmetrical structure; eight cuboid-shaped fourth grooves (1401) are symmetrically formed in four corners of the first support (14), and the first wheels (a13) penetrate through the fourth grooves (1401); both sides of each fourth groove (1401) are provided with a cylindrical eleventh through hole (1402), and the first hinge (a15) penetrates through the eleventh through hole (1402); a twelfth through hole (1403) in a cuboid shape is formed in the center of the first support (14), and the pen rack (5) and the steel pipe are arranged in the twelfth through hole (1403) in a penetrating mode; two cuboid-shaped fifth grooves (1404) are symmetrically formed in the inner surface of the twelfth through hole (1403), and the first spring (a19) and the second support (16) penetrate through the fifth grooves (1404);

the second bracket (16) is formed by connecting a fifth main body (1602) and a sixth boss (1604), the fifth main body (1602) and the sixth boss (1604) are both of a cuboid-shaped symmetrical structure, and the sixth boss (1604) is arranged at the front end of the fifth main body (1602); the sixth boss (1604) is provided with a first through groove (1606) in a rectangular shape, and the second wheel (b13) penetrates through the first through groove (1606); both sides of the first through groove (1606) are provided with a cylindrical thirteenth through hole (1603), and the second hinge (b15) penetrates through the thirteenth through hole (1603); the fifth main body (1602) is provided with an eight-prism-shaped fourteenth through hole (1605), and a third boss (503) of the pen rack (5) penetrates through the fourteenth through hole (1605); the fifth main body (1602) is provided with a cylindrical second screw hole (1601), and the screw (20) is screwed in the second screw hole (1601);

the screw (20) is composed of a force application end (2001) and an insertion section (2002) which are coaxially connected, wherein the force application end (2001) and the insertion section (2002) are both in cylindrical symmetrical structures; the force application end (2001) is provided with a second rectangular through groove (2004), and the second through groove (2004) is used for penetrating a linear screwdriver; the inserting section (2002) is used for penetrating through a third through hole (502) of the pen rack (5), one end, close to the force application end (2001), of the inserting section (2002) is provided with a second thread (2003), and the second thread (2003) is used for screwing a second screw hole (1601) of the second support (16);

the drawing (17), the pen core (18), the first spring (a19), the second spring (b19), the magnet (3), the rolling bearing (11), the first wheel (a13), the second wheel (b13), the first hinge (a15), the second hinge (b15), the screw (1) and the nut (9) are all standard parts.

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