Stainless steel pipe external thread machining device

Abstract

The invention discloses a stainless steel pipe external thread machining device, and relates to the technical field of external thread machining. The device comprises a base, a first positioning mechanism and a second positioning mechanism, each of the first positioning mechanism and the second positioning mechanism comprises a supporting seat, a plurality of positioning plates which are in radial sliding fit in the supporting seat, a threaded pull rod which is rotationally matched in the supporting seat and is in threaded fit with the positioning plates, and an outer gear ring which is rotationally matched on one side of the supporting seat and is meshed with the threaded pull rod; the first driving mechanism is arranged on one side of the supporting base and used for driving the outer gear ring to rotate, and the supporting base in the first positioning mechanism is fixed to the base. The first driving mechanism drives the outer gear ring to rotate, the outer gear ring drives the threaded pull rod to rotate, the threaded pull rod drives the positioning plate to slide, the first positioning mechanism clamps and positions the stainless steel pipe through the positioning wheel in the positioning plate, and the second positioning mechanism clamps and positions the stainless steel pipe through the positioning plate.

Description

Technical Field

[0001] The invention belongs to the field of external thread processing, and in particular relates to a stainless steel pipe external thread processing device. Background Art

[0002] The external thread processing of steel parts is a common mechanical processing method. At present, the main external thread processing method is turning. Turning usually requires manual loading, unloading, tool setting and other steps.

[0003] A Chinese patent with announcement number CN117428266B discloses a stainless steel pipe external thread processing device, including a main body device placed on the ground; the main body device is used for feeding and discharging stainless steel pipes, a feeding device is provided on the main body device, the feeding device is used to perform external thread processing on stainless steel pipes, a turntable device is provided on the main body device, the turntable device is used to cooperate with the feeding processing of stainless steel pipes, and a clamping device is provided on the main body device, the clamping device is used to clamp the stainless steel pipe during processing. The main body device provided by the present invention can realize automatic feeding and discharging, and drive the outer turntable and the inner turntable to rotate to rotate the stainless steel pipe, driving the stainless steel pipe to continuously process continuously; the feeding device can automatically perform external thread processing on the stainless steel pipe, and at the same time drive the clamping device to clamp the stainless steel pipe, so that the stainless steel pipe can remain fixed during processing, and at the same time, the turntable device drives the outer turntable to rotate after the processing is completed, and the degree of automation is high;

[0004] However, the above-mentioned stainless steel pipe external thread processing device processes the external thread of the positioned stainless steel pipe, and the processed part of the stainless steel pipe is suspended, which affects the stability of the stainless steel pipe processing and further affects the processing accuracy of the external thread on the stainless steel pipe.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a stainless steel pipe external thread processing device.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A stainless steel pipe external thread processing device comprises a base, a first positioning mechanism and a second positioning mechanism. The first positioning mechanism and the second positioning mechanism both comprise a support seat, a plurality of positioning plates radially slidingly fitted in the support seat, a threaded pull rod rotatably fitted in the support seat and threadedly fitted with the positioning plates, an external gear ring rotatably fitted on one side of the support seat and meshing with the threaded pull rod, and a first driving mechanism arranged on one side of the support seat for driving the external gear ring to rotate. The support seat in the first positioning mechanism is fixed on the base, a turning mechanism is arranged in the support seat in the first positioning mechanism, a positioning wheel is rotatably fitted in the positioning plate in the first positioning mechanism, the support seat in the second positioning mechanism is slidably fitted on the base, a second driving mechanism for driving the support seat in the second positioning mechanism to slide is arranged on the upper side of the base, and a plurality of positioning plates are arranged in a circular array in the support seat.

[0009] Optionally, a circular hole is provided on one side of the support seat, and multiple positioning plates are arranged in a circular array in the circular hole. An annular groove is provided on one side of the support seat, and a first bevel gear is provided at one end of the threaded rod extending into the annular groove. A first bevel gear ring meshing with the first bevel gear is provided at one end of the outer gear ring. A first bearing corresponding to the threaded rod is embedded in the inner wall of the circular hole, a smooth surface is provided on the outer side of one end of the threaded rod, and one end of the threaded rod is fixed in the first bearing.

[0010] Optionally, an annular protrusion is provided on the outer side of the first bevel gear ring, two limiting rings are provided on the inner wall of the annular groove, and the annular protrusion is located between the two limiting rings.

[0011] Optionally, one side of the support seat is provided with a placement opening that passes through the outer gear ring, the first conical gear ring, the annular protrusion, and the two limit rings.

[0012] Optionally, the diameter of both ends of the positioning wheel gradually decreases toward the middle, the positioning plate is a U-shaped plate structure, and the inner wall of the positioning plate in the second positioning mechanism is provided with a curved surface.

[0013] Optionally, a plurality of guide mechanisms are provided between the positioning plate and the inner wall of the circular hole, and the guide mechanisms include a guide column fixed to the inner wall of the circular hole, and a guide cylinder provided on one side of the positioning plate, and the guide cylinder is slidably sleeved on the guide column.

[0014] Optionally, the first driving mechanism includes a first servo motor arranged on one side of the support seat, a first gear arranged on the output shaft of the first servo motor and passing through one end of the support seat, and two second gears rotatably matched on one side of the support seat, with a distance between the two second gears, and the second gears meshing with the first gear and the outer gear ring.

[0015] Optionally, the turning mechanism includes a second servo motor arranged on one side of the support seat, a second bevel gear arranged at the output end of the second servo motor, a second bearing fixed in the circular hole, a second bevel gear ring fixed in the second bearing, an internal thread tool holder fixed in the second bevel gear ring, and an internal thread tool arranged in the internal thread tool holder.

[0016] Optionally, a guide groove is provided on the upper side of the base, and a protrusion is provided at the bottom end of the support seat in the first positioning mechanism, and the protrusion is slidably fitted in the guide groove.

[0017] Optionally, the protrusion is a T-shaped block structure, the guide groove is a T-shaped groove structure, and the second driving mechanism includes a third servo motor arranged on one side of the base, and a threaded push rod arranged at one end of the output shaft of the third servo motor extending into the guide groove, and the threaded push rod cooperates with the protrusion thread.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below at the same time:

[0019] By placing the stainless steel pipe in the circular hole through the placement port, and then turning on the first servo motor to drive the first gear to drive the two second gears to rotate, the two second gears drive the outer gear ring to rotate, the outer gear ring drives multiple first bevel gears to rotate, the first bevel gear drives the threaded pull rod to rotate, the threaded pull rod drives the positioning plate to slide under the guidance of the guide mechanism, the first positioning mechanism clamps and positions the stainless steel pipe through the positioning wheel in the positioning plate, the second positioning mechanism clamps and positions the stainless steel pipe through the positioning plate, the turning mechanism and the second driving mechanism are turned on, the second servo motor drives the second bevel gear to drive the second bevel gear ring, the internal thread cutter seat, and the internal thread cutter to rotate, the third servo motor drives the threaded push rod to drive the support seat in the second positioning mechanism to slide, and then the second driving mechanism drives the second positioning mechanism to pull the stainless steel pipe to slide, the stainless steel pipe slides under the guide support of multiple positioning wheels in the first positioning mechanism, extends into the internal thread cutter located in the first positioning mechanism, and performs external thread processing, thereby reducing the distance between the processing end and the positioning end of the stainless steel pipe, and reducing the overhanging length of the processing end of the stainless steel pipe, so as to improve the stability of the external thread processing of the stainless steel pipe.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0023] Figure 2 It is a schematic cross-sectional structural diagram of a first driving mechanism according to an embodiment of the present invention;

[0024] Figure 3 It is a schematic cross-sectional structural diagram of a turning mechanism according to an embodiment of the present invention;

[0025] Figure 4 An exploded view of an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a turning mechanism according to an embodiment of the present invention;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] Base 1, support base 2, positioning plate 3, threaded pull rod 4, external gear ring 5, first driving mechanism 6, first servo motor 601, first gear 602, second gear 603, turning mechanism 7, second servo motor 701, second bevel gear 702, second bevel gear ring 703, internal thread tool holder 704, internal thread tool 705, positioning wheel 8, second driving mechanism 9, third servo motor 901, threaded push rod 902, circular hole 10, annular groove 11, first bevel gear 12, first bevel gear ring 13, annular protrusion 14, limiting ring 15, placement port 16, guide mechanism 17, guide column 1701, guide cylinder 1702, guide channel 18, protrusion 19.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] See also Figure 1-5 As shown, in this embodiment, a stainless steel pipe external thread processing device is provided, including a base 1, a first positioning mechanism, and a second positioning mechanism. The first positioning mechanism and the second positioning mechanism both include a support seat 2, a plurality of positioning plates 3 radially slidingly fitted in the support seat 2, a threaded pull rod 4 rotatably fitted in the support seat 2 and threadedly fitted with the positioning plate 3, an external toothed ring 5 rotatably fitted on one side of the support seat 2 and meshing with the threaded pull rod 4, and a first driving mechanism 6 arranged on one side of the support seat 2 for driving the external toothed ring 5 to rotate. The support seat 2 in the first positioning mechanism is fixed on the base 1, a turning mechanism 7 is arranged in the support seat 2 in the first positioning mechanism, a positioning wheel 8 is rotatably fitted in the positioning plate 3 in the first positioning mechanism, the support seat 2 in the second positioning mechanism is slidably fitted on the base 1, and a second driving mechanism 9 for driving the support seat 2 in the second positioning mechanism to slide is arranged on the upper side of the base 1, and a plurality of positioning plates 3 are arranged in a circular array in the support seat 2.

[0032] The outer gear ring 5 is driven to rotate by the first driving mechanism 6, and the outer gear ring 5 drives the threaded pull rod 4 to rotate, and the threaded pull rod 4 drives the positioning plate 3 to slide. The first positioning mechanism clamps and positions the stainless steel pipe through the positioning wheel 8 in the positioning plate 3, and the second positioning mechanism clamps and positions the stainless steel pipe through the positioning plate 3, and the turning mechanism 7 and the second driving mechanism 9 are turned on, so that the second driving mechanism 9 drives the second positioning mechanism to pull the stainless steel pipe to slide. The stainless steel pipe slides under the guide support of multiple positioning wheels 8 in the first positioning mechanism, and extends into the turning mechanism 7 located in the first positioning mechanism to perform external thread processing, thereby reducing the distance between the processing point and the positioning point of the stainless steel pipe, and reducing the suspended length of the processing point of the stainless steel pipe, so as to improve the stability of the external thread processing of the stainless steel pipe.

[0033] See also Figure 2-3 As shown, a circular hole 10 is provided on one side of the support seat 2 of this embodiment, and multiple positioning plates 3 are arranged in a circular array in the circular hole 10. An annular groove 11 is provided on one side of the support seat 2, and a cylindrical protrusion is provided on one side of the positioning plate 3. The threaded pull rod 4 is threadedly matched with the cylindrical protrusion, and one end of the threaded pull rod 4 extending into the annular groove 11 is provided with a first bevel gear 12, and one end of the outer gear ring 5 is provided with a first bevel gear ring 13 meshing with the first bevel gear 12. A first bearing corresponding to the threaded pull rod 4 is embedded in the inner wall of the circular hole 10, and a smooth surface is provided on the outer side of one end of the threaded pull rod 4. One end of the threaded pull rod 4 is fixed in the first bearing, so as to improve the rotation stability of the threaded pull rod 4 through the first bearing, so that the outer gear ring 5 can drive the multiple first bevel gears 12 to rotate through the first bevel gear ring 13, and the first bevel gear 12 drives the threaded pull rod 4 to rotate, and the threaded pull rod 4 drives the positioning plate 3 to slide. The first positioning mechanism clamps and positions the stainless steel pipe through the positioning wheel 8 in the positioning plate 3, and the second positioning mechanism clamps and positions the stainless steel pipe through the positioning plate 3.

[0034] See also Figure 2-4 As shown, an annular protrusion 14 is provided on the outer side of the first bevel gear ring 13 of the present embodiment, and two limiting rings 15 are provided on the inner wall of the annular groove 11, and the annular protrusion 14 is located between the two limiting rings 15, so as to improve the stability of the rotation of the annular protrusion 14 guided by the two limiting rings 15, thereby improving the stability of the rotation of the annular protrusion 14 and the rotation of the first bevel gear ring 13. A placement opening 16 which passes through the outer gear ring 5, the first bevel gear ring 13, the annular protrusion 14 and the two limiting rings 15 is provided on one side of the support seat 2. By setting the placement opening 16, it is convenient for the stainless steel pipe to be placed in the first positioning mechanism and the second positioning mechanism through the placement opening 16, thereby improving the convenience of placing the stainless steel pipe in the first positioning mechanism and the second positioning mechanism.

[0035] See also Figure 2-3As shown, the diameter of the positioning wheel 8 of this embodiment gradually decreases at both ends toward the middle, which is convenient for improving the stability of the positioning wheel 8 in positioning the stainless steel pipe. The positioning plate 3 is a U-shaped plate structure, and the inner wall of the positioning plate 3 in the second positioning mechanism is provided with an arc surface, which is convenient for improving the stability of the positioning plate 3 in the second positioning mechanism in clamping and positioning the stainless steel pipe.

[0036] See also Figure 2-3 As shown, a plurality of guide mechanisms 17 are provided between the positioning plate 3 and the inner wall of the circular hole 10 of the present embodiment. The guide mechanisms 17 include a guide column 1701 fixed to the inner wall of the circular hole 10 and a guide cylinder 1702 provided on one side of the positioning plate 3. The guide cylinder 1702 is slidably sleeved on the guide column 1701, so that the guide cylinder 1702 can slide on the guide column 1701 to guide the positioning plate 3 to slide, thereby improving the sliding stability of the positioning plate 3.

[0037] See also Figure 1-3 As shown, the first driving mechanism 6 of the present embodiment includes a first servo motor 601 arranged on one side of the support seat 2, a first gear 602 arranged on the output shaft of the first servo motor 601 and passing through one end of the support seat 2, and two second gears 603 rotatably matched on one side of the support seat 2, and there is a distance between the two second gears 603. The second gear 603 is meshed with the first gear 602 and the outer gear ring 5, so that the first servo motor 601 drives the first gear 602 to drive the two second gears 603 to rotate, and the two second gears 603 drive the outer gear ring 5 to rotate. The outer gear ring 5 drives multiple first bevel gears 12 to rotate through the first bevel gear ring 13, and the first bevel gear 12 drives the threaded pull rod 4 to rotate. The threaded pull rod 4 drives the positioning plate 3 to slide under the guidance of the guide mechanism 17. The first positioning mechanism clamps and positions the stainless steel pipe through the positioning wheel 8 in the positioning plate 3, and the second positioning mechanism clamps and positions the stainless steel pipe through the positioning plate 3.

[0038] See also Figure 1 , 3 As shown, the turning mechanism 7 of this embodiment includes a second servo motor 701 arranged on one side of the support seat 2, a second bevel gear 702 arranged at the output end of the second servo motor 701, a second bearing fixed in the circular hole 10, a second bevel gear ring 703 fixed in the second bearing, an internal thread cutter seat 704 fixed in the second bevel gear ring 703, and an internal thread cutter 705 arranged in the internal thread cutter seat 704, so that the second servo motor 701 drives the second bevel gear 702 to drive the second bevel gear ring 703, the internal thread cutter seat 704, and the internal thread cutter 705 to rotate, and the stainless steel pipe inserted into the internal thread cutter 705 is processed with external threads.

[0039] See also Figure 1-2As shown, the upper side of the base 1 of this embodiment is provided with a guide groove 18, and the bottom end of the support seat 2 in the first positioning mechanism is provided with a protrusion 19, and the protrusion 19 is slidably fitted in the guide groove 18. The protrusion 19 is a T-shaped block structure, and the guide groove 18 is a T-shaped groove structure, which is convenient for guiding the protrusion 19 to slide through the guide groove 18, thereby improving the sliding stability of the protrusion 19 and the sliding stability of the support seat 2. The second driving mechanism 9 includes a third servo motor 901 arranged on one side of the base 1, and a threaded push rod 90 arranged at one end of the output shaft of the third servo motor 901 extending into the guide groove 18. 2. The threaded push rod 902 is threadedly matched with the protrusion 19, so that the third servo motor 901 drives the threaded push rod 902 to drive the support seat 2 in the second positioning mechanism to slide, and then the second driving mechanism 9 drives the second positioning mechanism to pull the stainless steel pipe to slide. The stainless steel pipe slides under the guide support of multiple positioning wheels 8 in the first positioning mechanism, and extends into the internal thread cutter 705 located in the first positioning mechanism to perform external thread processing, thereby reducing the distance between the processing position and the positioning position of the stainless steel pipe, reducing the hanging length of the processing position of the stainless steel pipe, and facilitating improving the stability of the external thread processing of the stainless steel pipe.

[0040] Working principle: Place the stainless steel pipe in the circular hole 10 through the placement port 16, then turn on the first servo motor 601 to drive the first gear 602 to drive the two second gears 603 to rotate, the two second gears 603 drive the outer gear ring 5 to rotate, the outer gear ring 5 drives the multiple first bevel gears 12 to rotate through the first bevel gear ring 13, the first bevel gear 12 drives the threaded pull rod 4 to rotate, the threaded pull rod 4 drives the positioning plate 3 to slide under the guidance of the guide mechanism 17, the first positioning mechanism clamps and positions the stainless steel pipe through the positioning wheel 8 in the positioning plate 3, the second positioning mechanism clamps and positions the stainless steel pipe through the positioning plate 3, the turning mechanism 7 and the second driving mechanism 9 are turned on, and the second servo motor The machine 701 drives the second bevel gear 702 to drive the second bevel gear ring 703, the internal thread cutter seat 704, and the internal thread cutter 705 to rotate. The third servo motor 901 drives the threaded push rod 902 to drive the support seat 2 in the second positioning mechanism to slide, and then the second driving mechanism 9 drives the second positioning mechanism to pull the stainless steel pipe to slide. The stainless steel pipe slides under the guide support of multiple positioning wheels 8 in the first positioning mechanism, and extends into the internal thread cutter 705 located in the first positioning mechanism to perform external thread processing, thereby reducing the distance between the processing point and the positioning point of the stainless steel pipe, and reducing the overhang length of the processing point of the stainless steel pipe, so as to improve the stability of the external thread processing of the stainless steel pipe.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. All electrical appliances in the present invention are powered by external power supplies or built-in batteries. All electrical appliances in the present invention are not limited to models and specific types. Those skilled in the art can clearly use applicable electrical appliance models and specific types and electrical power supply methods based on common sense in the field.

[0042] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any structural changes made under the enlightenment of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. A stainless steel pipe external thread processing device, characterized in that: include: A base (1), a first positioning mechanism, and a second positioning mechanism. The first positioning mechanism and the second positioning mechanism both comprise a support seat (2), a plurality of positioning plates (3) radially slidingly fitted in the support seat (2), a threaded pull rod (4) rotatably fitted in the support seat (2) and threadedly fitted with the positioning plates (3), an outer toothed ring (5) rotatably fitted on one side of the support seat (2) and meshing with the threaded pull rod (4), and a first driving mechanism (6) provided on one side of the support seat (2) for driving the outer toothed ring (5) to rotate. The support seat (2) in the first positioning mechanism is fixed on the base (1), a turning mechanism (7) is provided in the support seat (2) in the first positioning mechanism, a positioning wheel (8) is rotatably fitted in the positioning plates (3) in the first positioning mechanism, the support seat (2) in the second positioning mechanism is slidably fitted on the base (1), a second driving mechanism (9) for driving the support seat (2) in the second positioning mechanism to slide is provided on the upper side of the base (1), and a plurality of positioning plates (3) are arranged in a circular array in the support seat (2).

2. A stainless steel pipe external thread processing device according to claim 1, characterized in that: A circular hole (10) is provided on one side of the support seat (2), and a plurality of positioning plates (3) are arranged in a circular array in the circular hole (10). An annular groove (11) is provided on one side of the support seat (2). A first bevel gear (12) is provided at one end of the threaded rod (4) extending into the annular groove (11). A first bevel gear ring (13) meshing with the first bevel gear (12) is provided at one end of the outer gear ring (5). A first bearing corresponding to the threaded rod (4) is embedded in the inner wall of the circular hole (10). A smooth surface is provided on the outer side of one end of the threaded rod (4), and one end of the threaded rod (4) is fixed in the first bearing.

3. A stainless steel pipe external thread processing device according to claim 2, characterized in that: An annular protrusion (14) is provided on the outer side of the first bevel gear ring (13), two limiting rings (15) are provided on the inner wall of the annular groove (11), and the annular protrusion (14) is located between the two limiting rings (15).

4. A stainless steel pipe external thread processing device according to claim 3, characterized in that: One side of the support seat (2) is provided with a placement opening (16) that passes through the outer gear ring (5), the first conical gear ring (13), the annular protrusion (14), and the two limit rings (15).

5. A stainless steel pipe external thread processing device according to claim 4, characterized in that: The diameter of the positioning wheel (8) is gradually reduced at both ends toward the middle, the positioning plate (3) is a U-shaped plate structure, and the inner wall of the positioning plate (3) in the second positioning mechanism is provided with an arc surface.

6. A stainless steel pipe external thread processing device according to claim 5, characterized in that: A plurality of guide mechanisms (17) are provided between the positioning plate (3) and the inner wall of the circular hole (10), wherein the guide mechanism (17) comprises a guide column (1701) fixed to the inner wall of the circular hole (10), and a guide cylinder (1702) provided on one side of the positioning plate (3), wherein the guide cylinder (1702) is slidably sleeved on the guide column (1701).

7. The stainless steel pipe external thread processing device according to claim 1, characterized in that: The first driving mechanism (6) comprises a first servo motor (601) arranged on one side of the support seat (2), a first gear (602) arranged on the output shaft of the first servo motor (601) and penetrating one end of the support seat (2), and two second gears (603) rotatably engaged with one side of the support seat (2), with a distance between the two second gears (603), and the second gears (603) meshing with the first gear (602) and the outer gear ring (5).

8. The stainless steel pipe external thread processing device according to claim 2, characterized in that: The turning mechanism (7) comprises a second servo motor (701) arranged at one side of the support seat (2), a second bevel gear (702) arranged at the output end of the second servo motor (701), a second bearing fixed in the circular hole (10), a second bevel gear ring (703) fixed in the second bearing, an internal thread cutter seat (704) fixed in the second bevel gear ring (703), and an internal thread cutter (705) arranged in the internal thread cutter seat (704).

9. The stainless steel pipe external thread processing device according to claim 1, characterized in that: A guide groove (18) is provided on the upper side of the base (1), and a protrusion (19) is provided on the bottom end of the support seat (2) in the first positioning mechanism. The protrusion (19) is slidably fitted in the guide groove (18).

10. The stainless steel pipe external thread processing device according to claim 9, characterized in that: The protrusion (19) is a T-shaped block structure, the guide groove (18) is a T-shaped groove structure, and the second driving mechanism (9) comprises a third servo motor (901) arranged on one side of the base (1), and a threaded push rod (902) arranged at one end of the output shaft of the third servo motor (901) extending into the guide groove (18), and the threaded push rod (902) is threadably matched with the protrusion (19).

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