A pipe outer wall thread processing equipment suitable for multi-specification steel pipes

Abstract

A pipe outer wall thread processing equipment suitable for steel pipes of multiple specifications belongs to the technical field of steel pipe thread processing, comprising: a bottom frame part, a fixing part, a control part, and a cutting part; the bottom frame part is provided with a bottom plate and a sliding frame, the fixing part is provided with a bottom block and a side plate II, the control part is provided with a sliding rod, and the cutting part is provided with a fixing ring, the sliding frame is slidably installed in a sliding groove provided on the bottom plate, two sliding rods are provided in the middle of the sliding frame, and a plurality of bottom blocks are slidably installed on the sliding rods, and there are multiple side plates II, one of which has a plurality of sliding rods arranged in a circular array welded on the side surface of the side plate II, and the fixing ring is welded on the bottom plate; the fixing part is pushed to move to a specified position, and the fixing part is fixed by a positioning strip, and the plurality of fixing parts are separated to a suitable position according to the length of the steel pipe, and the position of the fixing part can be adjusted according to the length of the steel pipe, and then adapted to steel pipes of different lengths, so as to facilitate the fixing of steel pipes of different lengths.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe thread processing, and in particular to a pipe outer wall thread processing device suitable for steel pipes of multiple specifications. Background Art

[0002] With the development of society, the progress of science and technology, the rapid development of steel pipe manufacturing technology, the manufacturing of steel pipes has become simpler, and the output of steel pipes has gradually increased. Because steel pipes have the characteristics of corrosion resistance, high pressure resistance, and strong load-bearing capacity, they are widely used in construction, manufacturing and other industries, making steel pipes more and more widely used in society;

[0003] In the production process of steel pipes, in order to save production costs and improve production efficiency, automated batch production of steel pipes is adopted. The length of the batch-produced steel pipes is the same as the specified length. When the length of the produced steel pipes is longer, it is not easy to transport in the existing transportation system. Therefore, after considering the reasons for transportation, the steel pipes produced are all of a length that is convenient for transportation;

[0004] However, in the process of use, sometimes a longer steel pipe is needed, and the length of the existing steel pipe is not suitable, so multiple steel pipes need to be connected for use. The way to connect the steel pipes is generally welding or using joints. When using joints for connection, because the joints are generally connected to the steel pipes by threaded connection, it is necessary to process threads on the outer wall of the steel pipe to facilitate the connection of the joints.

[0005] At present, when processing threads on the outer wall of steel pipes, machine tools are generally used for processing. When using machine tools to process threads on the outer wall of steel pipes, when the steel pipe is long, it is difficult to fix the steel pipe on the machine tool. After processing the threads, when the position of the processed threads needs to be polished, the steel pipe needs to be removed for polishing, and the threads cannot be processed and polished at one time. Summary of the invention

[0006] In view of the above problems, the present invention provides a pipe outer wall thread processing device suitable for steel pipes of various specifications, so as to solve the problems of steel pipe fixation during thread processing and failure to grind the processed threads.

[0007] The technical solution used in the present invention is: a pipe outer wall thread processing equipment suitable for steel pipes of multiple specifications, including a bottom frame part, a fixing part, a control part, and a cutting part; the bottom frame part is provided with a bottom plate and a sliding frame, the fixing part is provided with a bottom block and a side plate II, the control part is provided with a sliding rod, and the cutting part is provided with a fixing ring, the sliding frame is slidably installed in a sliding groove provided on the bottom plate, two sliding rods are provided in the middle of the sliding frame, and a plurality of bottom blocks are slidably installed on the sliding rods, there are a plurality of side plates II, a plurality of sliding rods arranged in a circular array are welded to the side of one of the side plates II, and the fixing ring is welded to the bottom plate; the fixing part fixes the steel pipe that needs to be threaded, the bottom frame part drives the fixing part to move, and then drives the steel pipe to move, and the cutting part processes threads on the outer wall of the steel pipe during the movement of the steel pipe.

[0008] Preferably, the bottom frame portion comprises: a screw rod;

[0009] The bottom plate is placed on the ground, and a slide groove is provided on the bottom plate. Grooves are provided in the middle of both sides of the slide groove, and a slider provided at the lower end of the sliding frame is slidably installed in the slide groove; two sliding rods are provided at the upper end of the sliding frame, and a rectangular slider is provided at the lower end. A hole is provided in the middle of the slider, and a threaded groove is provided on the hole wall. The screw rod is threadedly installed in the hole provided with the slider at the lower end of the sliding frame; both ends of the screw rod are respectively installed in the grooves provided on both sides of the bottom plate slide groove through bearings, and a coupling is installed at one end of the screw rod, and the coupling is connected to the motor.

[0010] Preferably, the fixing part comprises: a positioning strip, a side plate I, and a side plate II;

[0011] The positioning bar is slidably installed in the groove provided on the end surface of the bottom block. The outer wall of the positioning bar is wrapped with a spring. The two ends of the spring are respectively connected to the positioning bar and the bottom block. A rough surface is provided at one end of the positioning bar inside the bottom block. Two positioning bars are provided on each bottom block, and the two positioning bars are arranged in a mirror-symmetrical manner; the lower end of side plate I is welded to one side of the bottom block, and a plurality of connecting plates are provided at the upper end; the lower end of side plate II is welded to the other side of the bottom block, and a hole is provided at the upper end, and a circular slide groove is provided on the outside of the hole.

[0012] Preferably, the fixing part further comprises: an adjusting ring, a bevel gear I, a sleeve I, a threaded rod, a bevel gear II, a clamping block, a sleeve II, and a limiting ring;

[0013] An adjusting ring is welded to the outer wall of a cylindrical baffle provided on one side of bevel gear I; a cylindrical baffle is provided on one side of bevel gear I, and the baffle is rotatably installed in a circular slide groove provided on the upper end of side plate II, and bevel gear I is meshed with bevel gear II; a connecting plate provided on the bottom block is welded to the outer wall of sleeve I; a threaded rod is threadedly installed in sleeve II, a connecting block is provided at one end of the threaded rod inside sleeve I, a clamping block is installed on the connecting block, slide grooves are provided on both sides of the threaded rod, a protrusion provided on the inner wall of a limiting ring is slidably installed in the slide groove, and the outer wall of the limiting ring is welded to a hole provided on sleeve I; sleeve II is rotatably installed in the hole provided on sleeve I, and bevel gear II is welded to the outer wall of the upper end of sleeve II.

[0014] Preferably, the control part comprises: a control ring, a sleeve III;

[0015] A plurality of sleeves III are welded to one end of the control ring, a sliding rod is slidably installed in the sleeve III, a spring is provided on one side of the sliding rod installed in the sleeve III, the other end of the spring is connected to the control ring, and the other side of the sliding rod is welded to the side of one of the side plates II.

[0016] Preferably, the cutting part comprises: a sleeve IV, a gear I, a sleeve plate I, a connecting frame I, a sleeve plate II, a gear II, and a sleeve V;

[0017] A hole is provided at the upper end of the fixed ring, and a sleeve IV is rotatably installed in the hole. A gear I is welded on the outer wall of one end of the sleeve IV, and the gear I is meshed with the gear II. A shaft is provided on the gear II, and a coupling is provided at one end of the shaft, and the coupling is connected to the motor; the outer wall of the sleeve plate I is welded to the inner wall of one side of the sleeve IV, and a circular ring-shaped slide groove is provided outside the hole of the sleeve plate I, and a cylindrical baffle provided on the side of one of the bevel gears I is slidably installed in the slide groove; one side of the connecting frame I is fixedly installed with the sleeve V by screws, and the other side of the connecting frame I is fixedly connected with one of the sleeves I by screws; a hole is provided in the middle of the sleeve plate II, and the hole wall is welded to the outer wall of the sleeve V, and the outer wall of the sleeve plate II is welded to the inner wall on the other side of the sleeve IV.

[0018] Preferably, the cutting part further comprises: a sliding frame, an adjusting rod, a cutting knife, a top screw, a sleeve VI, a connecting frame II, a clamping strip, and a friction block;

[0019] A slide groove is provided in the middle of the outer wall of sleeve V; the sliding frame is slidably installed on sleeve V, and a threaded hole is provided in the middle position of the baffle plate on the upper part of the sliding frame, and a top screw is installed with the thread in the hole, and a slide hole is provided on the baffle plate on one side of the sliding frame; the adjusting rod is slidably installed in the slide hole provided on the sliding frame, and a spring is wrapped around the adjusting rod, and the two ends of the spring are respectively connected with the adjusting rod and the sliding frame; a slide groove is provided on one side of the adjusting rod, and a plurality of trapezoidal blocks arranged in a linear array are provided at the bottom end of the slide groove; the cutting knife is inserted into the jack provided at the lower end of the adjusting rod; one end of sleeve VI is welded to the baffle plate provided on the other side of the sliding frame, and a slide rod provided on one side of connecting frame II is slidably installed inside the other end; a spring is provided at one end of the slide rod of connecting frame II in sleeve VI, and the other end of the spring is connected to the baffle plate provided on the other side of the sliding frame; the clamping strip is welded on the baffle plate provided in the middle of connecting frame II, and the clamping strip is slidably installed in the slide groove provided on one side of the adjusting rod; the friction block is fixedly installed on the connecting block of one of the threaded rods.

[0020] Preferably, an adjusting ring, bevel gear I, sleeve I and a plurality of threaded rods, bevel gear II, sleeve II and limiting rings arranged in a circular array form a control mechanism, a control mechanism is provided in each fixing part and a control mechanism is also installed in the cutting part.

[0021] Beneficial effects of the present invention:

[0022] 1. Push the fixing part to move to the specified position, use the positioning bar to fix the fixing part, and separate multiple fixing parts to the appropriate position according to the length of the steel pipe. When the steel pipe is long, the distance between the multiple fixing parts is large, and when the steel pipe is short, the distance between the multiple fixing parts is short. The position of the fixing part can be adjusted according to the length of the steel pipe, and then adapted to steel pipes of different lengths, so as to facilitate the fixing of steel pipes of different lengths;

[0023] 2. According to the number of threads to be processed, the sliding frame with the same number of threads to be processed is placed on the sleeve V and fixed at the designated position of the sleeve V. Multiple threads can be processed at one time;

[0024] 3. The rotation of the screw drives the sliding frame to move, and then drives the steel pipe to move. The motor connected to gear II drives gear II to rotate, and then drives the cutter and friction block to rotate, and the outer wall of the steel pipe is threaded and polished. In this way, the position of the thread can be polished during the thread processing process, which is convenient for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first angle.

[0026] Figure 2 It is a schematic diagram of the second angle of the overall structure of the present invention.

[0027] Figure 3It is a structural schematic diagram of the bottom frame portion of the present invention.

[0028] Figure 4 It is a schematic structural diagram of the fixing part of the present invention.

[0029] Figure 5 It is a schematic structural diagram of the bottom of the fixing part of the present invention.

[0030] Figure 6 It is a schematic structural diagram of the control mechanism on the upper part of the fixing part of the present invention.

[0031] Figure 7 It is a structural schematic diagram of some parts of the control mechanism on the upper part of the fixing part of the present invention.

[0032] Figure 8 It is a schematic diagram of the structure of the control unit of the present invention.

[0033] Fig. 9 It is a schematic structural diagram of the cutting part of the present invention.

[0034] Fig.10 It is a schematic structural diagram of the control mechanism installed in the cutting part of the present invention and its surrounding parts.

[0035] Fig.11 It is a schematic structural diagram of the sleeve V of the cutting part of the present invention and the parts installed on the sleeve V.

[0036] Fig.12 It is a schematic structural diagram of the sliding frame of the cutting part and its nearby parts of the present invention.

[0037] Fig.13 It is a schematic structural diagram of the sleeve VI, the connecting frame II and the clamping strip of the cutting part of the present invention.

[0038] Reference numerals: 1, bottom frame; 2, fixing portion; 3, control portion; 4, cutting portion; 101, bottom plate; 102, sliding frame; 103, screw rod; 201, bottom block; 202, positioning bar; 203, side plate I; 204, side plate II; 205, adjustment ring; 206, bevel gear I; 207, sleeve I; 208, threaded rod; 209, bevel gear II; 210, clamping block; 211, sleeve II; 212, limiting ring; 3 01, control ring; 302, sleeve III; 303, sliding rod; 401, fixed ring; 402, sleeve IV; 403, gear I; 404, sleeve plate I; 405, connecting frame I; 406, sleeve plate II; 407, sleeve V; 408, sliding frame; 409, adjusting rod; 410, cutting knife; 411, top screw; 412, sleeve VI; 413, connecting frame II; 414, clamping strip; 415, friction block; 416, gear II. DETAILED DESCRIPTION

[0039] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when used, which is only for the convenience of describing the simplified description of the invention patent, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention patent. In addition, for the convenience of explanation, spatial relative terms, such as "below", "below", "below", "above", "above", etc., may be used in the text to describe the relationship of an element or feature relative to other elements or features as shown in the figure. Spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptors used in the text may also be interpreted accordingly. It should be noted that in this article, some connection methods, such as "fixed connection, fixed installation" refer to, but are not limited to, the fixing of two parts such as welding, screw and nut fixing, gluing, riveting, interference fit, etc. between two parts. For those skilled in the art, the specific meanings of the above terms in this application can be understood based on specific circumstances.

[0041] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0042] Implementation example Figure 1-Figure 13As shown, a pipe outer wall thread processing equipment suitable for multi-specification steel pipes includes a bottom frame part 1, a fixing part 2, a control part 3, and a cutting part 4; a bottom plate 101 and a sliding frame 102 are provided in the bottom frame part 1, a bottom block 201 and a side plate II 204 are provided in the fixing part 2, a sliding rod 303 is provided in the control part 3, and a fixing ring 401 is provided in the cutting part 4, the sliding frame 102 is slidably installed in a slide groove provided on the bottom plate 101, two sliding rods are provided in the middle of the sliding frame 102, a plurality of bottom blocks 201 are slidably installed on the sliding rods, there are a plurality of side plates II 204, a plurality of sliding rods 303 arranged in a circular array are welded on the side of one of the side plates II 204, and the fixing ring 401 is welded on the bottom plate 101; the fixing part 2 fixes the steel pipe to be threaded, the bottom frame part 1 drives the fixing part 2 to move, and then drives the steel pipe to move, and the cutting part 4 threads the outer wall of the steel pipe during the movement of the steel pipe.

[0043] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, the bottom frame portion 1 includes: a screw rod 103;

[0044] The base plate 101 is placed on the ground, and a slide groove is provided on the base plate 101. There are grooves in the middle of both sides of the slide groove, and a slider provided at the lower end of the sliding frame 102 is slidably installed in the slide groove; two sliding rods are provided at the upper end of the sliding frame 102, and a rectangular slider is provided at the lower end. A hole is provided in the middle of the slider, and a threaded groove is provided on the hole wall. The screw rod 103 is threadedly installed in the hole provided with the slider at the lower end of the sliding frame 102; both ends of the screw rod 103 are respectively installed in the grooves provided on both sides of the slide groove of the base plate 101 through bearings, and a coupling is installed at one end of the screw rod 103, and the coupling is connected to the motor, and the motor is fixedly installed on the side of the base plate 101 through a fixing part; specifically, the motor connected to the screw rod 103 drives the screw rod 103 to rotate, and then drives the sliding frame 102 to move.

[0045] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, the fixing portion 2 includes: a positioning bar 202, a side plate I 203, and a side plate II 204;

[0046] The bottom block 201 is provided with grooves at both ends; the positioning bar 202 is slidably installed in the groove provided on the end face of the bottom block 201, and the outer wall of the positioning bar 202 is wrapped with a spring, and the two ends of the spring are respectively connected to the positioning bar 202 and the bottom block 201, and the positioning bar 202 is provided with a rough surface at one end inside the bottom block 201, and the rough surface contacts the sliding rod of the sliding frame 102, and each bottom block 201 is provided with two positioning bars 202, and the two positioning bars 202 are arranged in a mirror-symmetrical manner; the lower end of the side plate I 203 is welded to one side of the bottom block 201, and a plurality of connecting plates are provided at the upper end; the lower end of the side plate II 204 is welded to the other side of the bottom block 201, and a hole is provided at the upper end, and a circular slide groove is provided on the outside of the hole; specifically, the positioning bar 202 is pulled outward to make the positioning bar 202 disengage from the sliding rod of the sliding frame 102, and then the bottom block 201 is pushed to move, and then a fixed part 2 is driven to move to a specified position;

[0047] When the fixing part 2 moves to the designated position, the positioning bar 202 is released and moves inward under the action of the spring, so that the rough surface of the positioning bar 202 is in close contact with the slide rod of the sliding frame 102. At this time, the fixing part 2 is fixed at the designated position under the friction between the rough surface of the positioning bar 202 and the slide rod of the sliding frame 102.

[0048] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, the fixing portion 2 further includes: an adjustment ring 205, a bevel gear I 206, a sleeve I 207, a threaded rod 208, a bevel gear II 209, a clamping block 210, a sleeve II 211, and a limiting ring 212;

[0049] An adjusting ring 205 is welded to the outer wall of a cylindrical baffle provided on one side of the bevel gear I 206; a cylindrical baffle is provided on one side of the bevel gear I 206, and the baffle is rotatably installed in a circular slide groove provided on the upper end of the side plate II 204, and the bevel gear I 206 is meshed with the bevel gear II 209; a connecting plate provided on the bottom block 201 is welded to the outer wall of the sleeve I 207, and the sleeve I 207 is provided with a plurality of holes arranged in a circular array; a threaded rod 208 is threadedly installed in the sleeve II 211, and a connecting block is provided at one end of the threaded rod 208 inside the sleeve I 207, and a clamping block 210 is installed on the connecting block, and slide grooves are provided on both sides of the threaded rod 208, and a protrusion provided on the inner wall of a limiting ring 212 is slidably installed in the slide groove, and the outer wall of the limiting ring 212 is welded to the sleeve I 20 7; sleeve II 211 is rotatably installed in the hole provided on sleeve I 207, the lower end of sleeve II 211 contacts with limiting ring 212, bevel gear II 209 is welded on the outer wall of the upper end of sleeve II 211, and a threaded groove is provided on the inner wall of sleeve II 211; the inner wall of limiting ring 212 is provided with two convex blocks arranged in mirror symmetry; specifically, the adjusting ring 205 is manually rotated, thereby driving bevel gear I 206 to rotate, thereby driving bevel gear II 209 to rotate, and then driving threaded rod 208 to move toward the inside of sleeve I 207, and then driving clamping block 210 to move toward the inside of sleeve I 207, so that clamping block 210 contacts with steel pipe and clamps on the steel pipe, and multiple clamping blocks 210 fix the steel pipe in the middle position of the fixing part 2.

[0050] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, the control unit 3 includes: a control ring 301, a sleeve III 302;

[0051] A plurality of sleeves III 302 are welded to one end of the control ring 301, a sliding rod 303 is slidably installed in the sleeve III 302, a spring is provided on one side of the sliding rod 303 installed in the sleeve III 302, the other end of the spring is connected to the control ring 301, and the other side of the sliding rod 303 is welded to the side of one of the side plates II 204; specifically, the control ring 301 is pushed to move, thereby driving the sleeve III 302 to slide on the sliding rod 303, thereby compressing the spring provided on one side of the sliding rod 303.

[0052] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, the cutting part 4 includes: a sleeve IV 402, a gear I 403, a sleeve plate I 404, a connecting frame I 405, a sleeve plate II 406, a gear II 416, and a sleeve V 407;

[0053] The lower end of the fixing ring 401 is welded to the bottom plate 101, and a hole is provided at the upper end of the fixing ring 401, in which a sleeve IV 402 is rotatably installed, and a gear I 403 is welded to the outer wall of one end of the sleeve IV 402, and the gear I 403 is meshed with the gear II 416, and a shaft is provided on the gear II 416, and a coupling is provided at one end of the shaft, and the coupling is connected to the motor, and the motor is fixedly installed on the fixing ring 401 through a fixing piece; the outer wall of the sleeve plate I 404 is welded to the inner wall of one side of the sleeve IV 402, and a hole is provided in the middle of the sleeve plate I 404, and a circular groove is provided outside the hole, and one of the bevel gears is slidably installed in the groove A cylindrical baffle is provided on the side of Ⅰ206; one side of the connecting frame Ⅰ405 is fixed to the sleeve V407 by screws, and the other side of the connecting frame Ⅰ405 is fixed to one of the sleeves Ⅰ207 by screws; a hole is provided in the middle of the sleeve plate Ⅱ406, the hole wall is welded to the outer wall of the sleeve V407, and the outer wall of the sleeve plate Ⅱ406 is welded to the inner wall on the other side of the sleeve IV402; specifically, the motor connected to the gear Ⅱ416 drives the gear Ⅱ416 to rotate, and then drives the gear Ⅰ403 to rotate, thereby driving the sleeve IV402 to rotate, and then drives the sleeve plate Ⅰ404 and the sleeve plate Ⅱ406 to rotate.

[0054] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, the cutting part 4 further includes: a sliding frame 408, an adjusting rod 409, a cutting knife 410, a top screw 411, a sleeve VI 412, a connecting frame II 413, a clamping strip 414, and a friction block 415;

[0055] A slide groove is provided in the middle of the outer wall of the sleeve V407; the sliding frame 408 is slidably installed on the sleeve V407, a threaded hole is provided in the middle of the upper baffle of the sliding frame 408, a top screw 411 is installed in the thread in the hole, and a slide hole is provided on the baffle on one side of the sliding frame 408; the adjusting rod 409 is slidably installed in the slide hole provided on the sliding frame 408, the adjusting rod 409 is wrapped with a spring, the two ends of the spring are respectively connected to the adjusting rod 409 and the sliding frame 408, and the lower end of the adjusting rod 409 is provided with a jack; the adjusting rod A slide groove is provided on one side of 409, and a plurality of trapezoidal blocks arranged in a linear array are provided at the bottom end of the slide groove; the cutter 410 is inserted into the jack provided at the lower end of the adjusting rod 409; one end of the sleeve VI 412 is welded to the baffle provided on the other side of the sliding frame 408, and a slide rod provided on one side of the connecting frame II 413 is slidably installed inside the other end; a slide rod is provided on one side of the connecting frame II 413, a baffle is provided in the middle, and a push rod is provided on the other side, the slide rod is welded to the baffle, the push plate is welded to the baffle, and the slide rod of the connecting frame II 413 is installed in the sleeve A spring is provided at one end of the cylinder VI 412, and the other end of the spring is connected to a baffle provided at the other side of the sliding frame 408; a clamping strip 414 is welded to a baffle provided in the middle of the connecting frame II 413, and the clamping strip 414 is slidably installed in a slide groove provided at one side of the adjusting rod 409, and the clamping strip 414 is closely matched with a trapezoidal block provided at the bottom end of the slide groove of the adjusting rod 409; a plurality of friction blocks 415 are arranged in a circular array, and the friction blocks 415 are fixedly installed on a connecting block of a part of the threaded rod 208; specifically, According to the number of threads to be processed, slide racks 408 having the same number as the number of threads to be processed are placed on the sleeve V407, and then multiple slide racks 408 are rotated to make the multiple slide racks 408 evenly distributed. When the slide racks 408 are rotated to the specified position, the top screw 411 is rotated with a wrench, and then the top screw 411 is inserted into the slide groove provided in the middle of the sleeve V407. The top screw 411 is in close contact with the bottom end of the slide groove of the sleeve V407, and then the slide rack 408 is fixed at the specified position of the sleeve V407;

[0056] After the sliding frames 408 are fixed, a cutter 410 of a suitable shape is inserted into the jack provided at the lower end of the adjusting rod 409 according to the shape of the thread to be processed, and then the adjusting rod 409 is pressed to move toward the inside of the sleeve V407, thereby driving the cutter 410 to move to a specified position, so that the cutter 410 can process threads on the outer wall of the steel pipe. After the adjusting rod 409 drives the cutter 410 to move to the specified position, the clamping strip 414 is clamped on the trapezoidal block provided at the bottom end of the slide groove of the adjusting rod 409 to prevent the adjusting rod 409 from moving in the opposite direction.

[0057] In an optional embodiment of the present invention, in addition to the same parts as the previous embodiment, an adjustment ring 205, bevel gear I 206, sleeve I 207 and a plurality of threaded rods 208, bevel gear II 209, sleeve II 211, and limiting ring 212 arranged in a circular array constitute a control mechanism, and a control mechanism is provided in each fixing part 2, and a control mechanism is also installed in the cutting part 4.

[0058] Working principle: When it is necessary to process threads on the outer wall of a steel pipe, use this device, first place this device at the designated position, then pull the positioning bar 202 outward to make the positioning bar 202 disengage from the slide bar of the sliding frame 102, then push the bottom block 201 to move, and then drive a fixed part 2 to move to the designated position, and then move other fixed parts 2 to the designated position according to the above process, separate multiple fixed parts 2 to appropriate positions according to the length of the steel pipe, when the steel pipe is long, the distance between multiple fixed parts 2 is large, when the steel pipe is short, the distance between multiple fixed parts 2 is short;

[0059] After the fixing part 2 moves to the designated position, the positioning strip 202 is released. Under the action of the spring, the positioning strip 202 moves inward, and then the rough surface of the positioning strip 202 is in close contact with the slide bar of the sliding frame 102. At this time, under the friction between the rough surface of the positioning strip 202 and the slide bar of the sliding frame 102, the fixing part 2 is fixed at the designated position. After multiple fixing parts 2 are fixed at appropriate positions, the steel pipe is passed through the middle of the fixing part 2. According to the length of the thread to be processed, one end of the steel pipe is passed through the fixing part 2 and the distance between one end of the steel pipe and the first fixing part 2 is a certain length, and this length is longer than the length of the thread to be processed.

[0060] Then manually rotate the adjusting ring 205 installed in the fixing part 2, which in turn drives the bevel gear I 206 to rotate, thereby driving the bevel gear II 209 to rotate, and then drives the threaded rod 208 to move inside the sleeve I 207, and then drives the clamping block 210 to move inside the sleeve I 207, so that the clamping block 210 contacts the steel pipe and is clamped on the steel pipe. Multiple clamping blocks 210 fix the steel pipe in the middle position of the fixing part 2;

[0061] After the fixing part 2 fixes the steel pipe, the adjusting ring 205 installed in the cutting part 4 is rotated according to the diameter of the steel pipe, driving the bevel gear I 206 to rotate, thereby driving the bevel gear II 209 to rotate, and then driving the threaded rod 208 to move inside the sleeve I 207, thereby driving the friction block 415 to move inside the sleeve I 207, and then moving the friction block 415 to a specified position, which is convenient for grinding after thread processing;

[0062] Then, according to the number of threads to be processed, slide racks 408 having the same number as the number of threads to be processed are placed on the sleeve V407, and then multiple slide racks 408 are rotated to make the multiple slide racks 408 evenly distributed. When the slide racks 408 are rotated to the specified position, the top screw 411 is rotated with a wrench, and then the top screw 411 is inserted into the slide groove provided in the middle of the sleeve V407. The top screw 411 is in close contact with the bottom end of the slide groove of the sleeve V407, and then the slide rack 408 is fixed at the specified position of the sleeve V407.

[0063] After the sliding racks 408 are fixed, a cutter 410 of a suitable shape is inserted into the jack provided at the lower end of the adjusting rod 409 according to the shape of the thread to be processed, and then the adjusting rod 409 is pressed to move toward the inner side of the sleeve V407, thereby driving the cutter 410 to move to a specified position, so that the cutter 410 can process the thread on the outer wall of the steel pipe. When the adjusting rod 409 drives the cutter 410 to move to the specified position, the clamping strip 414 is clamped on the trapezoidal block provided at the bottom end of the slide groove of the adjusting rod 409 to prevent the adjusting rod 409 from moving in the opposite direction.

[0064] Then the motor connected to the screw rod 103 drives the screw rod 103 to rotate, thereby driving the sliding frame 102 to move, and then driving the fixed part 2 to move, thereby driving the steel pipe to move. When the end face of the steel pipe contacts the cutter 410, the screw rod 103 then drives the steel pipe to move. At this time, the motor connected to the gear II 416 drives the gear II 416 to rotate, and then drives the gear I 403 to rotate, thereby driving the sleeve IV 402 to rotate, and then drives the sleeve plate I 404 and the sleeve plate II 406 to rotate, and then drives the adjustment ring 205, the bevel gear I 206, the sleeve I 207 and the like installed in the cutting part 4 to rotate, and then drives the friction block 415 to rotate, and the sleeve plate II 406 rotates to drive the connecting frame I 405 and the sleeve V 407 to rotate, and then drives the sliding frame 408 to rotate, thereby driving the adjustment rod 409 and the cutter 410 to rotate, and then the outer wall of the steel pipe is threaded;

[0065] When the thread processing is completed, the push rod provided on the connecting frame II 413 contacts the control ring 301, and then the control ring 301 pushes the connecting frame II 413 to move to the position of the sleeve II 406, and then drives the clamping strip 414 to disengage the trapezoidal block provided in the slide groove of the adjusting rod 409. At this time, under the action of the spring provided on the outer wall of the adjusting rod 409, the adjusting rod 409 is driven to move to the outside of the sleeve V 407, and then drives the cutter 410 to move to the outside of the sleeve V 407, and then the cutter 410 is disengaged from the steel pipe;

[0066] At this time, the fixed part 2 continues to move, pushing the control ring 301 to move toward the side plate II 204, and then driving the sleeve III 302 to slide on the sliding rod 303. At the same time, the fixed part 2 drives the steel pipe to continue to move. At this time, the friction block 415 is still rotating, and then the processed threads on the steel pipe are polished. When the control ring 301 moves to the specified position, the friction block 415 completes the grinding of the processed threads. Then, during the rotation of the friction block 415, the motor connected to the screw rod 103 drives the screw rod 103 to rotate in the opposite direction, and then drives the sliding frame 102 to move in the opposite direction, thereby driving the fixed part 2 to move in the opposite direction, and then drives the steel pipe to move in the opposite direction, and the steel pipe is taken out from the cutting part 4. At this time, the thread processing of the outer wall of the steel pipe is completed;

[0067] Then, the adjusting ring 205 installed in the fixing part 2 is rotated in the opposite direction, thereby driving the bevel gear I 206 to rotate in the opposite direction, thereby driving the bevel gear II 209 to rotate in the opposite direction, thereby driving the threaded rod 208 to move in the opposite direction, thereby driving the clamping block 210 to move in the opposite direction, and then the clamping block 210 is separated from the steel pipe. At this time, the steel pipe can be taken out of the fixing part 2 for use;

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pipe outer wall thread processing device suitable for steel pipes of various specifications, comprising a bottom frame part (1), a fixing part (2), a control part (3), and a cutting part (4); characterized in that: The bottom frame part (1) is provided with a bottom plate (101) and a sliding frame (102); the fixed part (2) is provided with a bottom block (201) and a side plate II (204); the control part (3) is provided with a sliding rod (303); the cutting part (4) is provided with a fixing ring (401); the sliding frame (102) is slidably mounted in a sliding groove provided on the bottom plate (101); two sliding rods are provided in the middle of the sliding frame (102); a plurality of bottom blocks (201) are slidably mounted on the sliding rods; there are a plurality of side plates II (204); a plurality of sliding rods (303) arranged in a circular array are welded to the side surface of one of the side plates II (204); and the fixing ring (401) is welded to the bottom plate (101); the fixing part (2) fixes the steel pipe to be threaded; the bottom frame part (1) drives the fixing part (2) to move, and then drives the steel pipe to move; the cutting part (4) processes threads on the outer wall of the steel pipe during the movement of the steel pipe; The control part (3) comprises: a control ring (301), a sleeve III (302); A plurality of sleeves III (302) are welded to one end of the control ring (301), a sliding rod (303) is slidably installed in the sleeve III (302), a spring is provided on one side of the sliding rod (303) installed in the sleeve III (302), the other end of the spring is connected to the control ring (301), and the other side of the sliding rod (303) is welded to the side of one of the side plates II (204); The cutting part (4) comprises: a sliding frame (408), an adjusting rod (409), a cutting knife (410), a top screw (411), a sleeve VI (412), a connecting frame II (413), a clamping strip (414), and a friction block (415); The sliding frame (408) is slidably mounted on the sleeve V (407); a threaded hole is provided in the middle of the upper baffle of the sliding frame (408); a top screw (411) is installed in the thread in the hole; a sliding hole is provided on the baffle on one side of the sliding frame (408); an adjusting rod (409) is slidably mounted in the sliding hole provided on the sliding frame (408); a spring is wrapped around the adjusting rod (409); two ends of the spring are respectively connected to the adjusting rod (409) and the sliding frame (408); a sliding groove is provided on one side of the adjusting rod (409); a plurality of trapezoidal blocks arranged in a linear array are provided at the bottom end of the sliding groove; a cutter (410) is inserted at the lower end of the adjusting rod (409); The sleeve VI (412) is welded at one end to a baffle plate provided at the other side of the sliding frame (408), and a sliding rod provided at one side of the connecting frame II (413) is slidably installed inside the other end; a spring is provided at one end of the sliding rod of the connecting frame II (413) in the sleeve VI (412), and the other end of the spring is connected to the baffle plate provided at the other side of the sliding frame (408); a clamping strip (414) is welded to a baffle plate provided in the middle of the connecting frame II (413), and the clamping strip (414) is slidably installed in a sliding groove provided at one side of the adjusting rod (409); a friction block (415) is fixedly installed on a connecting block of a portion of the threaded rod (208); After the processing is completed, the push rod provided on the connecting frame II (413) contacts the control ring (301), and then the control ring (301) pushes the connecting frame II (413) to move toward the position of the sleeve plate II (406), thereby driving the clamping strip (414) to disengage the trapezoidal block provided in the slide groove of the adjustment rod (409).

2. The pipe outer wall thread processing equipment applicable to multi-specification steel pipes according to claim 1 is characterized in that: The bottom frame portion (1) comprises: a screw rod (103); The base plate (101) is placed on the ground, and a slide groove is provided on the base plate (101). Grooves are provided at the middle positions of both sides of the slide groove, and a slider provided at the lower end of the slide frame (102) is slidably installed in the slide groove; two slide rods are provided at the upper end of the slide frame (102), and a rectangular slider is provided at the lower end. A hole is provided in the middle of the slider, and a threaded groove is provided on the hole wall. The screw rod (103) is threadedly installed in the hole of the slider at the lower end of the slide frame (102); both ends of the screw rod (103) are respectively installed in the grooves provided at both sides of the slide groove of the base plate (101) through bearings, and a coupling is installed at one end of the screw rod (103), and the coupling is connected to the motor.

3. The pipe outer wall thread processing equipment applicable to multi-specification steel pipes according to claim 1 is characterized in that: The fixing portion (2) comprises: a positioning strip (202), a side plate I (203), and a side plate II (204); The positioning bar (202) is slidably mounted in a groove provided on the end surface of the bottom block (201); a spring is wrapped on the outer wall of the positioning bar (202); two ends of the spring are respectively connected to the positioning bar (202) and the bottom block (201); one end of the positioning bar (202) inside the bottom block (201) is provided with a rough surface; each bottom block (201) is provided with two positioning bars (202), and the two positioning bars (202) are arranged in a mirror-symmetrical manner; the lower end of the side plate I (203) is welded to one side of the bottom block (201), and the upper end is provided with a plurality of connecting plates; the lower end of the side plate II (204) is welded to the other side of the bottom block (201), and the upper end is provided with a hole, and the outer side of the hole is provided with a circular slide groove.

4. The pipe outer wall thread processing equipment applicable to multi-specification steel pipes according to claim 1 is characterized in that: The fixing portion (2) further comprises: an adjusting ring (205), a bevel gear I (206), a sleeve I (207), a threaded rod (208), a bevel gear II (209), a clamping block (210), a sleeve II (211), and a limiting ring (212); The adjusting ring (205) is welded to the outer wall of a cylindrical baffle provided on one side of the bevel gear I (206); a cylindrical baffle is provided on one side of the bevel gear I (206), and the baffle is rotatably mounted in a circular slide groove provided on the upper end of the side plate II (204), and the bevel gear I (206) is meshed with the bevel gear II (209); a connecting plate provided on the bottom block (201) is welded to the outer wall of the sleeve I (207); a threaded rod (208) is threadedly mounted in the sleeve II (211), and the threaded rod (2 08) A connecting block is provided at one end of the sleeve I (207), and a clamping block (210) is installed on the connecting block. Slide grooves are provided on both sides of the threaded rod (208), and a protrusion provided on the inner wall of the limiting ring (212) is slidably installed in the slide groove. The outer wall of the limiting ring (212) is welded to a hole provided on the sleeve I (207); the sleeve II (211) is rotatably installed in the hole provided on the sleeve I (207), and a bevel gear II (209) is welded to the outer wall of the upper end of the sleeve II (211).

5. The pipe outer wall thread processing equipment applicable to multi-specification steel pipes according to claim 1 is characterized in that: The cutting part (4) further comprises: a sleeve IV (402), a gear I (403), a sleeve plate I (404), a connecting frame I (405), a sleeve plate II (406), a gear II (416), and a sleeve V (407); The fixing ring (401) has a hole at the upper end, in which a sleeve IV (402) is rotatably mounted, a gear I (403) is welded to the outer wall of one end of the sleeve IV (402), the gear I (403) is meshed with the gear II (416), a shaft is provided on the gear II (416), one end of the shaft is provided with a coupling, and the coupling is connected to the motor; the outer wall of the sleeve plate I (404) is welded to the inner wall of one side of the sleeve IV (402), and a circular groove is provided outside the hole of the sleeve plate I (404), in which a gear is slidably mounted. A cylindrical baffle is provided on the side of one of the bevel gears I (206); one side of the connecting frame I (405) is fixedly installed with the sleeve V (407) by screws, and the other side of the connecting frame I (405) is fixedly connected with one of the sleeves I (207) by screws; a hole is provided in the middle of the sleeve plate II (406), the hole wall is welded to the outer wall of the sleeve V (407), the outer wall of the sleeve plate II (406) is welded to the inner wall of the other side of the sleeve IV (402), and a slide groove is provided in the middle of the outer wall of the sleeve V (407).

6. The pipe outer wall thread processing equipment applicable to multi-specification steel pipes according to claim 4 is characterized in that: An adjusting ring (205), a bevel gear I (206), a sleeve I (207), and a plurality of threaded rods (208), a bevel gear II (209), a sleeve II (211), and a limiting ring (212) arranged in a circular array form a control mechanism. A control mechanism is provided in each fixing portion (2), and a control mechanism is also installed in the cutting portion (4).

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