Automatic fixed-length cutting device for high-frequency welded pipe

Abstract

The invention relates to the technical field of high-frequency welded pipe machining, in particular to a high-frequency welded pipe automatic fixed-length cutting device which comprises a base, a bottom plate, a clamping unit and a cutting mechanism. According to the high-frequency welding pipe cutting device, the two clamping units are arranged to continuously clamp the cutting position and the follow-up feeding position correspondingly, the first clamping plates in the clamping units cooperate with each other to clamp the notch of a high-frequency welding pipe up and down, and the first auxiliary pressing set assists in clamping the notch of the high-frequency welding pipe front and back; by means of formed circumferential multi-point clamping, it is guaranteed that a notch is smooth and not prone to deformation; secondly, through mutual cooperation of a first clamping plate, a first auxiliary pressing set and a second auxiliary pressing set, the problem that a notch is uneven due to deviation of the high-frequency welded pipe is avoided, and the problem that the cutting error is increased due to deviation of the high-frequency welded pipe in the distance fixing process is solved; and moreover, the required cutting length is controlled through a fixed distance group in the cutting mechanism, and the high-frequency welding pipe is fed and conveyed through left-right reciprocating motion of a right side bottom plate, so that the production cost is reduced, meanwhile, a notch of the high-frequency welding pipe is smooth, and the cutting error is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of high-frequency welded pipe processing, in particular to an automatic fixed-length cutting device for high-frequency welded pipes. Background Art

[0002] High-frequency welded pipe is a common welded steel pipe. Steel plates or steel strips are welded into a tube through high-frequency welding technology. High-frequency welded pipe is widely used in construction, petroleum, chemical, machinery, automobile and other industries due to its high production efficiency, good welding quality and low cost.

[0003] During the production and application of high-frequency welded pipes, it is often necessary to cut to a fixed length. However, during the current fixed-length cutting, the cutting position is manually marked, and then the high-frequency welded pipe is directly cut to a fixed length by an existing external cutting tool. Or, after manual marking, the high-frequency welded pipe is first fed to the same position by an external feeding device (currently, the high-frequency welded pipe is mainly passed through two conveying rollers distributed up and down, and the two conveying rollers rotate towards each other, and the high-frequency welded pipe is fed by the friction between the two conveying rollers and the high-frequency welded pipe), and then the high-frequency welded pipe is cut to a fixed length by an existing external cutting tool.

[0004] However, the above-mentioned cutting method has the following problems: 1. Although the method of manual marking and then cutting to a fixed length ensures that the flatness of each incision meets the requirements, the high-frequency welded pipe needs to be pressed manually during cutting, which requires a lot of labor costs and time costs, and the cutting efficiency is low; and the method of feeding the high-frequency welded pipe to a fixed length externally and then cutting increases the cutting speed of the high-frequency welded pipe, but the high-frequency welded pipe is not firmly restricted during the cutting process, which makes it easy for the high-frequency welded pipe to have an uneven incision and a large error in the controlled length of the high-frequency welded pipe.

[0005] 2. The error of cutting the high-frequency welded pipe to a fixed length by manually marking the cutting position is relatively large. Secondly, the second cutting method of feeding the high-frequency welded pipe externally has a large error in controlling the length of the high-frequency welded pipe, thus affecting the accuracy of the subsequent fixed-length cutting process. Summary of the invention

[0006] Based on this, it is necessary to provide a high-frequency welded pipe automatic fixed-length cutting device to solve the above-mentioned problems of the prior art.

[0007] The present application provides an automatic fixed-length cutting device for high-frequency welded pipes, comprising: a base, wherein the upper end surface of the base is provided with two bottom plates distributed left and right, the left bottom plate is fixedly provided on the base, and the right bottom plate is slidably provided left and right on the base, the right end surface of the left bottom plate is rotatably provided with a threaded shaft whose axis extends from left to right and passes through the right bottom plate, the threaded shaft is threadably matched with the right bottom plate, the rear end surface of the bottom plate is fixedly provided with a side plate, and the bottom plate is provided with a clamping unit for clamping the high-frequency welded pipe.

[0008] The clamping unit includes a sliding plate, a sliding plate is provided on the front end surface of the side plate for sliding up and down, two rectangular plates distributed up and down are provided on the front side of the sliding plate, and two left-right symmetrical and arc-shaped clamping plates 1 are fixed to the opposite surfaces of the lower rectangular plate and the adjacent bottom plate through connecting strips, and the inner arc surfaces of the two clamping plates 1 facing each other are opposite, and the clamping unit also includes an auxiliary pressure group 1 and an auxiliary pressure group 2 for auxiliary pressing of the high-frequency welded pipe, which are opposite to each other. The clamping unit also includes an auxiliary pressure group 1 and an auxiliary pressure group 2 for auxiliary pressing of the high-frequency welded pipe.

[0009] A cutting mechanism is provided on the base for cutting the high-frequency welded pipe at a fixed distance and pushing the material. The cutting mechanism includes a cutting groove. A cutting groove is provided through the middle of the rectangular plate on the lower left side. A cutting unit is provided on the upper end surface of the rectangular plate on the upper left side. The cutting unit includes a cutting tool. A distance group is provided on the base.

[0010] According to a favorable embodiment, the auxiliary pressure group 1 includes a fixed plate, and two front-to-rear symmetrical fixed plates are fixedly arranged on the upper end surface of the base plate, and a sliding column with an axis extending from front to rear passes through the upper end of the fixed plate for front-to-rear sliding, and horizontal U-shaped plates are fixedly arranged on the opposite surfaces of the two front-to-rear sliding columns, and the U-shaped openings of the two front-to-rear U-shaped plates are opposite to each other, and clamping plates 2 are fixedly arranged on the opposite surfaces of the longitudinal sections of the two front-to-rear U-shaped plates, and a driving group 1 is arranged on a rectangular plate adjacent to the upper end of the base plate.

[0011] According to a favorable embodiment, the driving group 1 includes a spring rod 1, and the front and rear end surfaces of the rectangular plate on the lower side are fixedly provided with a spring rod 1 with an axis extending from top to bottom through a square block, and the telescopic end of the spring rod 1 is fixedly provided with a wedge-shaped block, and the opposite back surfaces of the two front and rear sliding columns opposite to each other are fixedly provided with a driving plate, and the front and rear driving plates are symmetrical front and back, and the driving plate is composed of an inclined section whose upper end is inclined toward the opening of the U-shaped plate and a vertical section connected to the lower end of the inclined section, and the inclined section of the driving plate cooperates with the wedge-shaped block, and a spring 1 mounted on the corresponding sliding column is fixedly provided between the fixed plate and the transverse section of the U-shaped plate.

[0012] According to a favorable embodiment, the auxiliary pressure group 2 includes a support plate, and the upper end surface of the base is fixed with an arc-shaped support plate by two front-to-back symmetrical rectangular bars, and the opposite back surfaces of the two rectangular bars are fixed with fixed columns with axes extending from bottom to top by horizontal bars, and sliding bars are provided on the two fixed columns for sliding up and down, and an arc-shaped lower pressure plate is fixedly provided between the two sliding bars, and a spring 2 mounted on the fixed column is fixedly provided between the sliding bar and the rectangular bar.

[0013] According to a preferred embodiment, the inner arc surface of the support plate and the inner arc surface of the lower pressure plate are fixedly provided with multiple groups of support components that are equidistant from left to right and evenly distributed circumferentially, and the support components include support rollers, and the axes of the support rollers are perpendicular to the radial lines of the support plates, and the inner arc surfaces of both the support plate and the lower pressure plate are rotatably connected to the corresponding support rollers through fixed connecting blocks.

[0014] According to a favorable embodiment, the distance group includes distance bars, and the front and rear end surfaces of the bottom plate on the right side and the adjacent rectangular plate above it are fixedly provided with distance bars, and the upper end surface of the base is fixedly provided with two front-to-back symmetrical limit bars, and the limit bars are located on the right side of the distance bars, and two front-to-back symmetrical moving blocks are slidingly provided on the base, and a U-shaped baffle with a downward opening is commonly provided on the two moving blocks.

[0015] According to a favorable embodiment, the distance group also includes bolts, and two bolts with left-right symmetry and vertical axes are fixedly provided on the upper end surface of the moving block. A supporting block is commonly placed on the two left and right opposite bolts, and the two supporting blocks are fixedly connected to the baffle. The threads on the bolts are matched with nuts located on the upper side of the supporting blocks.

[0016] According to a favorable embodiment, the cutting mechanism also includes a slide bar 1, and the front end surface of the sliding plate on the left side is provided with two slide bars 1 distributed up and down for sliding up and down, and the front ends of the two slide bars 1 are fixedly connected to the corresponding two rectangular plates respectively, and the front end surface of the sliding plate on the right side is provided with two slide bars 2 that are fixedly connected to the two rectangular plates on the same side for sliding up and down. The two rectangular plates opposite to each other are fixedly connected by a plurality of spring rods 2 arranged in a rectangular shape and with the axis running from top to bottom, and the front end surface of the sliding plate on the left side is provided with a driving group 2.

[0017] According to a preferred embodiment, the cutting mechanism further comprises a support column, and two front-to-back symmetrical support columns are commonly arranged between the two upper rectangular plates, and the support column is fixedly connected to the left rectangular plate and slidably connected to the right rectangular plate.

[0018] According to a preferred embodiment, the drive group 2 includes gears, and the front end surface of the sliding plate on the left side is rotatably provided with a gear via a drive shaft extending from back to front through an axis, and racks meshing with the gears are fixedly provided on both slide bars 1, and the two racks are centrally symmetrical about the axis of the drive shaft.

[0019] In summary, the present invention includes at least one of the following beneficial effects: First, the two clamping units provided in the present invention respectively continuously clamp the cutting position and the subsequent feeding position, the clamping plates 1 in the clamping units cooperate with each other to clamp the incision of the high-frequency welded pipe up and down, and the auxiliary pressure group 1 assists in clamping the incision of the high-frequency welded pipe front and back, and the circumferential multi-point clamping is formed to ensure the smoothness of the incision; secondly, the clamping plate 1, the auxiliary pressure group 1 and the auxiliary pressure group 2 cooperate with each other to avoid the uneven incision caused by the deviation of the high-frequency welded pipe and reduce the problem of increased cutting error due to the deviation of the high-frequency welded pipe during the spacing process; furthermore, the required cutting length is controlled by the spacing group in the cutting mechanism, and the high-frequency welded pipe is fed and transported by the left and right reciprocating movement of the right bottom plate, which improves the cutting efficiency, reduces the production cost, and makes the incision of the high-frequency welded pipe smooth and reduces the cutting error.

[0020] 2. In the present invention, while the corresponding two clamping plates one clamp the high-frequency welded pipe, the corresponding two clamping plates two also clamp the high-frequency welded pipe through the driving group one. The stability of the high-frequency welded pipe during the cutting process is further guaranteed by re-clamping the high-frequency welded pipe by the corresponding two clamping plates two, thereby avoiding the shaking and deviation of the high-frequency welded pipe during the cutting process, which affects the accuracy of the fixed-length cutting. Secondly, the clamping plate and the clamping plate two are arranged on the left and right sides of the cutting tool to form a double-sided circumferential multi-point clamping, thereby ensuring that the incision of the high-frequency welded pipe is smooth during cutting and improving the stability during cutting.

[0021] 3. The present invention completes the distance determination process by moving the baffle to the specified position and fixing and locking the baffle. Then, in the process of the right bottom plate moving to the left, the fixed-length feeding of the fixed-length high-frequency welded pipe is completed by the limiting cooperation between the baffle and the distance bar. Secondly, in the above process, the right clamping unit maintains the clamping effect on the high-frequency welded pipe, so as to reduce the error generated in the fixed-length feeding process of the high-frequency welded pipe. Then, in the process of resetting the right bottom plate, the clamping plates 1 and 2 in the right clamping unit straighten the high-frequency welded pipe, thereby improving the stability of the high-frequency welded pipe during the processing and avoiding the problem of high-frequency welded pipe offset affecting the cutting accuracy.

[0022] Fourth, the present invention realizes the movement and locking of the support block through the cooperation between the nut and the bolt, that is, implements the fixed distance adjustment. The multi-position adjustment of the support block can easily adapt to the cutting requirements of high-frequency welded pipes of different lengths, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A three-dimensional structural schematic diagram of a high-frequency welded pipe automatic fixed-length cutting device provided according to an embodiment of the present invention is shown.

[0025] Figure 2 A partial structural schematic diagram of a high-frequency welded pipe automatic fixed-length cutting device provided according to an embodiment of the present invention is shown.

[0026] Figure 3 A schematic diagram of the three-dimensional structure between the left bottom plate, the rectangular plate and the lower pressing plate provided according to an embodiment of the present invention is shown.

[0027] Figure 4 The embodiment of the present invention provides Figure 3 Enlarged view of point A in the middle.

[0028] Figure 5 A schematic diagram of a three-dimensional structure between a rectangular plate, a first slide bar and a second slide bar provided according to an embodiment of the present invention is shown.

[0029] Figure 6 The embodiment of the present invention provides Figure 5 Enlarged view of point B in the middle.

[0030] The above drawings include the following reference numerals: 1, base; 2, bottom plate; 3, threaded shaft; 4, side plate; 5, clamping unit; 50, sliding plate; 500, rectangular plate; 501, clamping plate 1; 51, auxiliary pressure group 1; 510, fixed plate; 511, sliding column; 512, U-shaped plate; 513, clamping plate 2; 52, driving group 1; 520, spring rod 1; 521, wedge block; 522, driving plate; 523, spring 1; 53, auxiliary pressure group 2; 530, support plate; 531, fixed column; 532, sliding bar; 533, lower pressure plate; 534, spring 2; 535, connecting block; 536, supporting roller; 6, cutting mechanism; 60, cutting groove; 61, cutting tool; 62, distance group; 620, distance bar; 621, limit bar; 622, moving block; 623, baffle; 624, bolt; 625, supporting block; 626, nut; 63, sliding bar 1; 630, sliding bar 2; 631, spring rod 2; 64, supporting column; 65, driving group 2; 650, gear; 651, rack. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below 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 embodiments disclosed below.

[0032] like Figure 1 As shown, an automatic fixed-length cutting device for high-frequency welded pipes comprises: a base 1, wherein the upper end face of the base 1 is provided with two bottom plates 2 distributed left and right, the left bottom plate 2 is fixedly provided on the base 1, and the right bottom plate 2 is slidably provided left and right on the base 1, and the right end face of the left bottom plate 2 is rotatably provided with a threaded shaft 3 whose axis extends from left to right and passes through the right bottom plate 2, the threaded shaft 3 is connected to an external motor, the threaded shaft 3 is threadedly matched with the right bottom plate 2, a side plate 4 is fixedly provided on the rear end face of the bottom plate 2, and a clamping unit 5 for clamping the high-frequency welded pipe is provided on the bottom plate 2.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the clamping unit 5 includes a sliding plate 50, and the front end surface of the side plate 4 is provided with a sliding plate 50 for sliding up and down. The two sliding plates 50 are driven by an external hydraulic cylinder (not shown in the figure) to move up and down synchronously. The front side of the sliding plate 50 is provided with two rectangular plates 500 distributed up and down. The lower rectangular plate 500 and the opposite surface of the adjacent bottom plate 2 are fixed with two left-right symmetrical and arc-shaped clamping plates 501 through connecting strips. The inner arc surfaces of the two upper and lower opposite clamping plates 501 are opposite. The clamping unit 5 also includes an auxiliary pressure group 1 51 and an auxiliary pressure group 2 53 for auxiliary pressing of the high-frequency welded pipe.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the base 1 is provided with a cutting mechanism 6 for distance cutting and feeding of high-frequency welded pipes, the cutting mechanism 6 includes a cutting groove 60, a cutting groove 60 is opened through the middle of the rectangular plate 500 on the lower left side, and a cutting unit is provided on the upper end surface of the rectangular plate 500 on the upper left side, the cutting unit includes a cutting tool 61, and the cutting tool 61 is connected to an external existing driving motor for driving its cutting, and a distance group 62 is provided on the base 1.

[0035] During operation, first, the high-frequency welded pipe to be cut is placed between the bottom plate 2 and the lower rectangular plate 500, and the clamping unit 5 works to make the upper and lower clamping plates 501 clamp the high-frequency welded pipe. Secondly, the auxiliary pressure group 1 51 and the auxiliary pressure group 2 53 work to assist in clamping the high-frequency welded pipe to ensure the accuracy of cutting. After the cutting tool 61 in the cutting unit performs the first cutting, the left cut section of the high-frequency welded pipe is used as the cutting reference for subsequent fixed-length cutting. After that, the external motor 1 works to drive the threaded shaft 3 to rotate, so that the right bottom plate 2 drives the high-frequency welded pipe to move left, and the required cutting length is limited by the distance group 62. Therefore, the distance from the cutting reference to the position where the cutting is performed again is the specified cutting length. The cutting tool 61 in the cutting unit cuts again to obtain a high-frequency welded pipe product of the required length. Repeat the cutting operation multiple times to obtain multiple high-frequency welded pipe products of specified lengths.

[0036] like Figure 2 and Figure 3 As shown, the auxiliary pressure group 1 51 includes a fixed plate 510, and two front-to-back symmetrical fixed plates 510 are fixedly arranged on the upper end surface of the base plate 2. A sliding column 511 with an axis extending from front to back is penetrated through the upper end of the fixed plate 510 for forward and backward sliding. The opposite surfaces of the two front-to-back opposite sliding columns 511 are fixedly arranged with horizontal U-shaped plates 512, and the U-shaped openings of the two front-to-back opposite U-shaped plates 512 are opposite. The opposite surfaces of the longitudinal sections of the two front-to-back opposite U-shaped plates 512 are fixedly arranged with clamping plates 2 513, and a driving group 1 52 is arranged on the rectangular plate 500 adjacent to the upper end of the base plate 2.

[0037] like Figure 2 and Figure 3 As shown, the driving group 52 includes a spring rod 520, and the front and rear end surfaces of the rectangular plate 500 on the lower side are fixedly provided with a spring rod 520 with an axis extending from top to bottom through a square block, and the telescopic end of the spring rod 520 is fixedly provided with a wedge block 521, and the opposite back surfaces of the two front and rear sliding columns 511 are fixedly provided with a driving plate 522, and the front and rear two driving plates 522 are symmetrical front and back, and the driving plate 522 is composed of an inclined section with an upper end inclined toward the opening of the U-shaped plate 512 and a vertical section connected to the lower end of the inclined section, and the inclined section of the driving plate 522 cooperates with the wedge block 521, and a spring 523 mounted on the corresponding sliding column 511 is fixedly provided between the fixed plate 510 and the transverse section of the U-shaped plate 512.

[0038] like Figure 2 and Figure 3As shown, the auxiliary pressure group 2 53 includes a support plate 530, and the upper end surface of the base 1 is fixed with an arc-shaped support plate 530 by two front-to-back symmetrical rectangular bars, and the opposite back surfaces of the two rectangular bars are fixed with fixed columns 531 with axes extending from bottom to top by horizontal bars, and sliding bars 532 are provided on the two fixed columns 531 for sliding up and down, and an arc-shaped lower pressure plate 533 is fixedly provided between the two sliding bars 532, and a spring 2 534 mounted on the fixed column 531 is fixedly provided between the sliding bar 532 and the rectangular bar.

[0039] like Figure 3 and Figure 4 As shown, the inner arc surface of the support plate 530 and the inner arc surface of the lower pressure plate 533 are fixedly provided with multiple groups of support components that are equidistant from left to right and uniformly distributed circumferentially, and the support components include support rollers 536, and the axes of the support rollers 536 are perpendicular to the radial lines of the support plate 530. The inner arc surfaces of both the support plate 530 and the lower pressure plate 533 are rotatably connected to the corresponding support rollers 536 through fixedly arranged connecting blocks 535.

[0040] During operation, the high-frequency welded pipe to be cut is placed between the bottom plate 2 and the lower rectangular plate 500, and the high-frequency welded pipe is placed on the clamping plate 501 on the lower side. The multiple clamping plates 501 support the high-frequency welded pipe. Then, the external hydraulic cylinder works to make the left and right sliding plates 50 move downward synchronously. The sliding plates 50 drive the two rectangular plates 500 thereon to move downward synchronously. In the process of the lower rectangular plate 500 moving downward, the clamping plate 501 thereon is driven to move downward synchronously and contact the high-frequency welded pipe. Therefore, the clamping plates 501 distributed above and below cooperate with each other to clamp the high-frequency welded pipe, so as to improve the stability in the subsequent cutting process.

[0041] Secondly, when the rectangular plate 500 drives the clamping plate 501 thereon to move downward synchronously, the rectangular plate 500 drives the corresponding wedge block 521 to move downward synchronously through the two spring rods 520 thereon. During the downward movement of the wedge block 521, it first contacts the corresponding driving plate 522. After the two contact, the wedge block 521 stops moving. As the rectangular plate 500 and the spring rod 520 continue to move, the spring rod 520 deforms. The elastic force generated by the deformation of the spring rod 520 makes the wedge block 521 cooperate with the inclined section of the driving plate 522, applying a thrust to the driving plate 522, so that the driving plate 522 drives the corresponding U-shaped plate 512 to move through the sliding column 511 The U-shaped plates 512 move and the two U-shaped plates 512 approach each other, the spring 1 523 is stretched and deformed, and the U-shaped plate 512 drives the two clamping plates 2 513 thereon to move synchronously. Finally, the two clamping plates 2 513 opposite to each other cooperate with each other to clamp the high-frequency welded pipe. The high-frequency welded pipe is clamped again by the corresponding two clamping plates 2 513, which further ensures the stability of the high-frequency welded pipe during the cutting process, and avoids the shaking and deviation of the high-frequency welded pipe during the cutting process, which affects the accuracy of fixed-length cutting. Secondly, by arranging the clamping plates 1 501 and the clamping plates 2 513 on the left and right sides of the cutting tool 61, circumferential clamping is implemented on both sides of the cutting position to ensure the flatness of the incision of the high-frequency welded pipe.

[0042] During the process of placing the high-frequency welded pipe, the high-frequency welded pipe is simultaneously passed through between the support plate 530 and the lower pressure plate 533. The support plate 530 supports the high-frequency welded pipe. During the placement process, the spring 2 534 is stretched. After the lower pressure plate 533 is released, the lower pressure plate 533 presses the high-frequency welded pipe under the elastic force of the spring 2 534. The cooperation between the support plate 530 and the lower pressure plate 533 avoids the problem of large cutting length error caused by the deviation of the high-frequency welded pipe during the pushing and spacing process. The multiple support rollers 536 arranged on the inner arc surfaces of the support plate 530 and the lower pressure plate 533 cooperate with each other to clamp the high-frequency welded pipe while allowing the high-frequency welded pipe to move left and right, thereby avoiding affecting the subsequent feeding and movement of the high-frequency welded pipe.

[0043] After the above clamping process, the cutting tool 61 in the cutting unit works to cut the high-frequency welded pipe. After cutting, the left cut section of the high-frequency welded pipe serves as a cutting reference for subsequent fixed-length cutting.

[0044] like Figure 1 , Figure 5 and Figure 6As shown, the distance group 62 includes a distance bar 620, and the front and rear end surfaces of the bottom plate 2 on the right side and the adjacent rectangular plate 500 above it are fixedly provided with the distance bar 620, and the upper end surface of the base 1 is fixedly provided with two front-to-back symmetrical limit bars 621, and the limit bar 621 is located on the right side of the distance bar 620, and two front-to-back symmetrical moving blocks 622 are slidably provided on the base 1, and a U-shaped baffle 623 with a downward opening is commonly provided on the two moving blocks 622.

[0045] like Figure 1 and Figure 6 As shown, the distance group 62 also includes a bolt 624, and the upper end surface of the moving block 622 is fixedly provided with two bolts 624 which are symmetrical on the left and right and have vertical axes, and a supporting block 625 is commonly placed on the two opposite bolts 624 on the left and right, and the two supporting blocks 625 are fixedly connected to the baffle 623, and the thread on the bolt 624 is matched with a nut 626 located on the upper side of the supporting block 625.

[0046] It should be noted that the distance bar 620 on the right bottom plate 2 is initially in close contact with the limit bar 621, and then the above-mentioned reference cutting process is carried out. The supporting block 625 is moved according to the length of the high-frequency welded pipe to be cut, and the supporting block 625 drives the baffle 623 to move synchronously, and makes the distance between the baffle 623 and the limit bar 621 minus the value of the width of the distance bar 620 equal to the required length of the high-frequency welded pipe, and then the nut 626 is turned to lock the supporting block 625 on the base 1 through the cooperation between the nut 626 and the bolt 624, so the baffle 623 is fixed to the base 1, and the distance process is completed, and then the distance cutting of the high-frequency welded pipe is carried out.

[0047] like Figure 1 , Figure 2 and Figure 5 As shown, the cutting mechanism 6 also includes a slide bar 1 63. The front end surface of the sliding plate 50 on the left side is slidable up and down and is provided with two slide bars 1 63 distributed up and down. The front ends of the two slide bars 1 63 are fixedly connected to the corresponding two rectangular plates 500 respectively. The front end surface of the sliding plate 50 on the right side is slidable up and down and is provided with two slide bars 2 630 correspondingly fixedly connected to the two rectangular plates 500 on the same side. The two rectangular plates 500 facing each other are fixedly connected by a plurality of spring rods 2 631 arranged in a rectangular shape and with an axis from top to bottom. The front end surface of the sliding plate 50 on the left side is provided with a driving group 2 65.

[0048] like Figure 2 and Figure 5 As shown, the cutting mechanism 6 also includes a support column 64, and two front-to-back symmetrical support columns 64 are commonly arranged between the two upper rectangular plates 500, and the support column 64 is fixedly connected to the left rectangular plate 500 and slidably connected to the right rectangular plate 500.

[0049] like Figure 2 and Figure 3 As shown, the driving group 2 65 includes a gear 650, and the front end surface of the sliding plate 50 on the left side is rotatably provided with a gear 650 through a driving shaft extending from back to front through an axis, and the driving shaft is connected to an external motor 2, and racks 651 meshing with the gear 650 are fixedly provided on the two sliding bars 1 63, and the two racks 651 are centrally symmetrical about the axis of the driving shaft.

[0050] After completing the reference cutting of the incision, and at the same time, after the distance group 62 works to adjust the required cutting length, the external motor 2 works to drive the driving shaft to rotate synchronously in the forward direction, and the driving shaft drives the gear 650 thereon to rotate synchronously, and the engagement between the gear 650 and the two racks 651 makes the two racks 651 drive the corresponding slide bar 1 63 to move synchronously, and the slide bar 1 63 drives the rectangular plate 500 thereon to move synchronously, and the two rectangular plates 500 on the left side approach each other, and the rectangular plate 500 on the lower left side drives the clamping plate 1 501 thereon to move up and away from the high-frequency welded pipe, and the U-shaped plate 512 drives the clamping plate 2 513 thereon to move away from the high-frequency welded pipe under the action of the rebound force of the spring 1 523, and releases the clamping of the clamping plate 1 501 and the clamping plate 2 513 on the high-frequency welded pipe at this location, and then takes out the part of the left side of the high-frequency welded pipe cut off in the above-mentioned reference setting process, and at the same time, the upper left side The rectangular plate 500 moves downward synchronously, and the rectangular plate 500 drives the corresponding rectangular plate 500 on the right side to move downward synchronously through two support columns 64. During the downward movement of the rectangular plate 500 on the right side, the spring rod 2 631 thereon is compressed, and the clamping plate 1 501 and the clamping plate 2 513 at the right bottom plate 2 both maintain clamping of the high-frequency welded pipe. Then, the external motor 1 works to drive the threaded shaft 3 to rotate, so that the right bottom plate 2 drives the high-frequency welded pipe to move left, and the distance bar 620 on the right bottom plate 2 moves synchronously. When the distance bar 620 moves to contact with the baffle 623, the right bottom plate 2 stops moving. Therefore, in this process, the high-frequency welded pipe is pushed to the left by the specified length required for cutting, and then the external motor 2 works to reverse and reset the drive shaft, and the clamping plate 1 501 and the clamping plate 2 513 on the left side resume clamping of the high-frequency welded pipe, and then the cutting tool 61 repeats the cutting operation.

[0051] The external motor 2 continues to work to reverse the driving shaft, and the clamping plate 1 501 and the clamping plate 2 513 at the left bottom plate 2 maintain the clamping of the high-frequency welded pipe. The rectangular plate 500 on the upper left side drives the corresponding rectangular plate 500 on the right side to move upward through the support column 64. The upward movement of the rectangular plate 500 on the upper right side reduces the compression deformation of the spring rod 2 631, so the clamping force of the high-frequency welded pipe by the clamping plate 1 501 at the right bottom plate 2 is reduced. Then, the external motor 1 works to make the right bottom plate 2 move right and reset. During the resetting process, the clamping plate 1 501 and the clamping plate 2 513 above the right bottom plate 2 straighten the high-frequency welded pipe to prevent the high-frequency welded pipe from shifting. When the distance bar 620 contacts the limit bar 621, the motor 1 stops working, and the external motor 2 works to reverse the driving shaft, then all the clamping plates 1 501 maintain the clamping of the high-frequency welded pipe.

[0052] During the left and right movement of the right bottom plate 2, the driving group 2 65 and the distance group 62 complete the distance feeding of the high-frequency welded pipe and ensure that one end of the high-frequency welded pipe is always stably clamped. Secondly, during the rightward movement of the right bottom plate 2, the high-frequency welded pipe can also be straightened, thereby improving the stability of the high-frequency welded pipe during the processing process while avoiding the problem of high-frequency welded pipe deviation affecting the cutting accuracy.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-frequency welded pipe automatic fixed-length cutting device, characterized in that: include: A base (1), wherein the upper end surface of the base (1) is provided with two bottom plates (2) distributed on the left and right, the left bottom plate (2) is fixedly provided on the base (1), and the right bottom plate (2) is slidably provided on the base (1) on the left and right, a threaded shaft (3) is rotatably provided on the right end surface of the left bottom plate (2) and the axis extends from left to right and passes through the right bottom plate (2), the threaded shaft (3) is threadedly matched with the right bottom plate (2), a side plate (4) is fixedly provided on the rear end surface of the bottom plate (2), and a clamping unit (5) for clamping a high-frequency welded pipe is provided on the bottom plate (2); The clamping unit (5) comprises a sliding plate (50), the front end surface of the side plate (4) is provided with a sliding plate (50) for sliding up and down, the front side of the sliding plate (50) is provided with two rectangular plates (500) distributed up and down, the lower rectangular plate (500) and the opposite surface of the adjacent bottom plate (2) are fixedly provided with two left-right symmetrical and arc-shaped clamping plates (501) through a connecting strip, the inner arc surfaces of the two upper and lower opposite clamping plates (501) are opposite, and the clamping unit (5) also comprises an auxiliary pressure group (51) and an auxiliary pressure group (53) for auxiliary pressing of the high-frequency welded pipe; A cutting mechanism (6), wherein the base (1) is provided with a cutting mechanism (6) for cutting the high-frequency welded pipe at a fixed distance and pushing the material, wherein the cutting mechanism (6) comprises a cutting groove (60), a cutting groove (60) is provided through the middle of the rectangular plate (500) at the lower left side, and a cutting unit is provided on the upper end surface of the rectangular plate (500) at the upper left side, wherein the cutting unit comprises a cutting tool (61) and an external existing driving motor for driving the cutting tool (61) to cut, and a distance group (62) is provided on the base (1).

2. The high-frequency welded pipe automatic fixed-length cutting device according to claim 1 is characterized in that: The auxiliary pressure group 1 (51) comprises a fixed plate (510), and two front-to-back symmetrical fixed plates (510) are fixedly arranged on the upper end surface of the bottom plate (2); a sliding column (511) with an axis extending from front to back is penetrated through the upper end of the fixed plate (510) for sliding forward and backward; horizontal U-shaped plates (512) are fixedly arranged on the opposite surfaces of the two front-to-back opposite sliding columns (511); the U-shaped openings of the two front-to-back opposite U-shaped plates (512) are opposite; clamping plates 2 (513) are fixedly arranged on the opposite surfaces of the longitudinal sections of the two front-to-back opposite U-shaped plates (512); and a driving group 1 (52) is arranged on the rectangular plate (500) adjacent to the upper end of the bottom plate (2).

3. The high-frequency welded pipe automatic fixed-length cutting device according to claim 2 is characterized in that: The driving group 1 (52) comprises a spring rod 1 (520), and the front and rear end surfaces of the lower rectangular plate (500) are fixedly provided with a spring rod 1 (520) with an axis extending from top to bottom through square blocks, and the telescopic end of the spring rod 1 (520) is fixedly provided with a wedge block (521), and the opposite back surfaces of the two front and rear sliding columns (511) are fixedly provided with a driving plate (522), and the front and rear driving plates (522) are symmetrical, and the driving plate (522) is composed of an inclined section with an upper end inclined toward the opening of the U-shaped plate (512) and a vertical section connected to the lower end of the inclined section, and the inclined section of the driving plate (522) cooperates with the wedge block (521), and a spring 1 (523) sleeved on the corresponding sliding column (511) is fixedly provided between the fixed plate (510) and the transverse section of the U-shaped plate (512).

4. The high-frequency welded pipe automatic length cutting device according to claim 1 is characterized in that: The auxiliary pressure group 2 (53) includes a support plate (530), the upper end surface of the base (1) is fixedly provided with an arc-shaped support plate (530) through two front-to-back symmetrical rectangular bars, the opposite back surfaces of the two rectangular bars are fixedly provided with a fixed column (531) with an axis extending from bottom to top through a horizontal bar, the two fixed columns (531) are both provided with a sliding bar (532) that slides up and down, an arc-shaped lower pressure plate (533) is fixedly provided between the two sliding bars (532), and a spring 2 (534) that is sleeved on the fixed column (531) is fixedly provided between the sliding bar (532) and the rectangular bar.

5. The high-frequency welded pipe automatic fixed-length cutting device according to claim 4 is characterized in that: The inner arc surface of the support plate (530) and the inner arc surface of the lower pressure plate (533) are fixedly provided with a plurality of groups of support components which are equidistant from left to right and evenly distributed circumferentially, and the support components include support rollers (536), and the axes of the support rollers (536) are perpendicular to the radial lines of the support plate (530). The inner arc surfaces of both the support plate (530) and the lower pressure plate (533) are rotatably connected to the corresponding support rollers (536) via fixed connection blocks (535).

6. The high-frequency welded pipe automatic fixed-length cutting device according to claim 1 is characterized in that: The distance group (62) comprises a distance bar (620), and the distance bars (620) are fixedly arranged on both the front and rear end surfaces of the bottom plate (2) on the right side and the rectangular plate (500) adjacent thereto, and the upper end surface of the base (1) is fixedly arranged with two front-to-back symmetrical limiting bars (621), and the limiting bars (621) are located on the right side of the distance bar (620), and the base (1) is slidably arranged with two front-to-back symmetrical moving blocks (622), and the two moving blocks (622) are jointly arranged with a U-shaped baffle (623) with a downward opening.

7. The high-frequency welded pipe automatic fixed-length cutting device according to claim 6 is characterized in that: The distance group (62) also includes bolts (624). Two bolts (624) with vertical axes are fixedly arranged on the upper end surface of the moving block (622). A supporting block (625) is commonly placed on the two bolts (624) opposite to each other on the left and right. The two supporting blocks (625) are fixedly connected to the baffle (623). The bolts (624) are threadedly matched with nuts (626) located on the upper side of the supporting blocks (625).

8. The high-frequency welded pipe automatic fixed-length cutting device according to claim 1 is characterized in that: The cutting mechanism (6) further comprises a slide bar 1 (63), the front end surface of the left sliding plate (50) is provided with two slide bars 1 (63) distributed up and down for sliding up and down, the front ends of the two slide bars 1 (63) are respectively fixedly connected with the corresponding two rectangular plates (500), the front end surface of the right sliding plate (50) is provided with two slide bars 2 (630) which are fixedly connected with the two rectangular plates (500) on the same side for sliding up and down, the two rectangular plates (500) facing each other up and down are fixedly connected by a plurality of spring rods 2 (631) which are arranged in a rectangular shape and whose axis runs from top to bottom, and the front end surface of the left sliding plate (50) is provided with a driving group 2 (65).

9. The high-frequency welded pipe automatic fixed-length cutting device according to claim 1 is characterized in that: The cutting mechanism (6) further comprises a support column (64), wherein two front-to-back symmetrical support columns (64) are disposed between the two upper rectangular plates (500), and the support column (64) is fixedly connected to the left rectangular plate (500) and slidably connected to the right rectangular plate (500).

10. The automatic fixed-length cutting device for high-frequency welded pipes according to claim 8, characterized in that: The driving group 2 (65) comprises a gear (650), and the front end surface of the left sliding plate (50) is rotatably provided with a gear (650) through a driving shaft extending from the rear to the front through an axis, and racks (651) meshing with the gear (650) are fixedly provided on the two sliding bars 1 (63), and the two racks (651) are centrally symmetrical about the axis of the driving shaft.

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