Cutting device for pipe fitting machining

Abstract

The invention discloses a cutting device for pipe fitting machining, and relates to the technical field of pipe fitting machining, the cutting device comprises a cutting table, a cutting assembly and a positioning mechanism, the cutting assembly is fixedly connected to the surface of the cutting table, the positioning mechanism is arranged on the upper surface of the cutting table, and the positioning mechanism comprises a fixing table fixedly connected to the surface of the cutting table; a movable seat is slidably connected to the upper surface of the fixed table, a driving assembly is arranged on the surface of the fixed table and used for driving the movable seat, a fixed seat is arranged on the upper surface of the rear end of the movable seat, a plurality of positioning pins are inserted into the longitudinal arm ends of the fixed seat and the movable seat, and a plurality of positioning pressing plates are arranged on the fixed seat and the movable seat. A vertical frame is fixedly connected to the left side of the cutting table, a drooping frame is fixedly connected to the top end of the vertical frame, and a driving crow plate is rotationally connected to the lower end of the drooping frame, so that the problem that pipe fitting deformation is easily caused during fixing is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing, and more particularly to a cutting device for pipe processing. Background Art

[0002] The cutting device for pipe processing is a cutting device used to cut pipes to a specified length. The cutting device for pipe processing usually consists of a cutting mechanism with a cutting blade. When in use, the cutting blade is placed against the pipe and pressure is gradually applied to the pipe. The blade gradually cuts along the surface of the pipe to form an incision, thereby cutting the pipe into a specified length.

[0003] When using a pipe processing cutting device to cut pipes, the pipes need to be fixed to prevent the pipes from rotating as the blade rotates during the cutting process, which affects the cutting effect. In the process of fixing the pipes, the existing cutting devices usually use a single-point clamping method to fix the pipes in order to be able to fix pipes of various sizes. In addition, in order to ensure the fixing effect of the pipes, a large pressure needs to be applied to fix the pipes. This fixing method will cause the pipes to be subjected to a large pressure per unit area. Therefore, it is easy to cause the pipes to deform during fixing. The pipes will get stuck due to the deformation during the subsequent cutting process, and the deformation of the pipes will also affect the cutting accuracy of the pipes. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a cutting device for pipe processing to solve the problem that the pipe is easily deformed during fixing.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A cutting device for pipe processing, comprising a cutting table and a cutting assembly, the cutting assembly is fixedly connected to the surface of the cutting table, and a positioning mechanism, the positioning mechanism is arranged on the upper surface of the cutting table, the positioning mechanism comprises a fixed table fixedly connected to the surface of the cutting table, the upper surface of the fixed table is slidably connected with a movable seat, the surface of the fixed table is provided with a driving assembly for driving the movable seat, a fixed seat is provided on the rear end upper surface of the movable seat, a plurality of positioning pins are inserted into the longitudinal arm ends of the fixed seat and the movable seat, a plurality of positioning pressure plates are provided on the fixed seat and the movable seat, a vertical frame is fixedly connected to the left side of the cutting table, a hanging frame is fixedly connected to the top end of the vertical frame, an active pry plate is rotatably connected to the lower end of the hanging frame, and a handle is fixedly connected to the left end of the active pry plate.

[0007] Furthermore, the driving assembly includes a driving screw rotatably connected to the inside of the fixed table, the rear end of the driving screw is threadedly connected to the movable seat, the surface of the cutting table is fixedly connected to a first motor, and the output shaft of the first motor is fixedly connected to the front end of the driving screw.

[0008] Furthermore, the multiple positioning pressure plates are divided into two groups, and the upper surfaces of the topmost positioning pressure plates in the front and rear groups are fixedly connected to the second rotating frame and the third rotating frame respectively, and the upper surfaces of the multiple positioning pressure plates located below the second rotating frame and the third rotating frame are fixedly connected to the first rotating frame, the right end of the active pry plate is rotatably connected to the second rotating frame, and the upper surfaces of the movable seat and the fixed seat are fixedly connected to multiple vertical plates, and the end of the positioning pin close to the vertical plate is fixedly connected to a guide rod, and the guide rod is inserted into the inside of the vertical plate, and a driving spring is fixedly connected between the positioning pin and the vertical plate.

[0009] Furthermore, a first driven pry plate is rotatably connected to the surface of the third rotating frame, a second connecting column is fixedly connected to the lower surface of the left end of the first driven pry plate, a first connecting column is fixedly connected to the lower surface of the left end of the active pry plate, a plurality of second driven pry plates are fixedly sleeved on the surfaces of the first connecting column and the second connecting column, and the right ends of the plurality of second driven pry plates are rotatably connected to the plurality of first rotating frames respectively.

[0010] Furthermore, a connecting cross bar is fixedly connected between the active pry plate and the left end of the first driven pry plate, abutment grooves are provided on the upper surfaces of the plurality of positioning pins, and rubber strips are fixedly connected to the end surfaces of the plurality of groups of transversely arranged positioning pins.

[0011] Furthermore, two brackets are fixedly connected to the left side of the top of the stand, a hanger is fixedly connected between the two brackets, slots are opened on both sides of the inside of the hanger, a column is fixedly connected to the left end of the upper surface of the active pry plate, two plug blocks are slidably connected to the top of the column, a middle guide pin and two side guide pins are fixedly connected at the ends of the two blocks close to each other, and rubber pads are fixedly connected to the lower surfaces of the multiple positioning pressure plates.

[0012] Furthermore, the ends of the middle guide pin and the two side guide pins are fixedly connected with return springs, and the surfaces of the two plug blocks are fixedly connected with gripping handles.

[0013] Furthermore, a straightening mechanism is arranged on the left side of the cutting table, and the straightening mechanism includes a placing rack fixedly connected to the left side of the cutting table, a mounting seat is fixedly connected to the upper surface of the right side of the placing rack, a correction frame is fixedly connected to the upper surface of the mounting seat, a plurality of driven shafts are rotatably connected inside the correction frame, surfaces of the plurality of driven shafts are fixedly sleeved with driven correction shafts, a rotating shaft is rotatably connected inside the left end of the correction frame, and an active correction shaft is fixedly sleeved on the surface of the rotating shaft.

[0014] Furthermore, a second motor is fixedly connected to the upper surface of the right side of the placement rack, and an output shaft of the second motor is fixedly connected to the front end of the rotating shaft.

[0015] Furthermore, the active correction axis and the plurality of driven correction axes are arranged alternately with each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) Compared with the traditional single-point clamping method, this solution effectively disperses the force on the pipe through multiple distributed positioning pins, avoids the problem of pipe deformation caused by excessive pressure per unit area due to local stress concentration, and improves the cutting accuracy and quality of the pipe.

[0017] (2) This solution enables multiple positioning pins to form an arc-shaped contact surface that fits the outer surface of the pipe fitting, and uses multiple driving springs to apply thrust to ensure that each positioning pin can be tightly attached to the surface of the pipe fitting, thereby achieving a stable and uniform clamping effect, significantly enhancing the adaptability to pipe fittings of different sizes, so that it can flexibly adapt to pipe fittings of various specifications and sizes.

[0018] (3) During the pipe cutting operation, this solution uses an active straightening shaft in combination with multiple driven straightening shaft assemblies to straighten the pipe. Even if the pipe has been straightened in advance, it may still be deformed and bent due to various factors during the subsequent handling and storage process. This potential bending risk has an adverse effect on the pipe cutting operation. Therefore, immediate straightening can effectively prevent the problem of loss of cutting accuracy due to bending of the pipe during the cutting preparation stage, further improving the cutting accuracy and overall cutting quality of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the fixing platform of the present invention; Figure 3 It is a structural schematic diagram of the connecting cross bar of the present invention; Figure 4 It is a structural schematic diagram of the positioning pin of the present invention; Figure 5It is a structural schematic diagram of the positioning pressing plate of the present invention; Figure 6 This is a schematic diagram of the structure of the active pry plate of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 It is a structural schematic diagram of the hanger of the present invention; Fig. 9 It is a structural schematic diagram of the correction frame of the present invention; Fig.10 It is a schematic diagram of the structure of the active correction shaft and the driven correction shaft of the present invention.

[0020] Description of the numbers in the figure: 1. Cutting table; 2. Cutting components; 301, first motor; 302, fixed platform; 303, handle; 304, drive screw; 305, moving seat; 306, fixed seat; 307, rubber strip; 308, connecting cross bar; 309, positioning pin; 310, positioning pressure plate; 311, vertical plate; 312, guide rod; 313, drive spring; 314, abutment groove; 315, active pry plate; 316, vertical frame; 317, rubber pad; 318, first Connecting column; 319, bracket; 320, gripping handle; 321, first rotating frame; 322, hanging frame; 323, first driven prying plate; 324, second driven prying plate; 325, second connecting column; 326, hanging bracket; 327, plugging column; 328, slot; 329, plugging block; 330, guide pins on both sides; 331, middle guide pin; 332, return spring; 333, second rotating frame; 334, third rotating frame; 401, placement rack; 402, second motor; 403, correction frame; 404, mounting seat; 405, driven correction shaft; 406, driven shaft; 407, active correction shaft; 408, rotating shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 8A cutting device for pipe processing comprises a cutting table 1 and a cutting assembly 2, wherein the cutting assembly 2 is fixedly connected to the surface of the cutting table 1, and a positioning mechanism, wherein the positioning mechanism is arranged on the upper surface of the cutting table 1, and the positioning mechanism comprises a fixed table 302 fixedly connected to the surface of the cutting table 1, and a movable seat 305 is slidably connected to the upper surface of the fixed table 302, and a driving assembly is arranged on the surface of the fixed table 302 for driving the movable seat 305, and a fixed seat 306 is arranged on the upper surface of the rear end of the movable seat 305, and a plurality of positioning pins 309 are inserted into the longitudinal arm ends of the fixed seat 306 and the movable seat 305, and the clamping of the pipe fitting is realized by the plurality of positioning pins 309, which can avoid deformation of the pipe fitting caused by excessive pressure, and can adapt to pipe fittings of various sizes, and a plurality of positioning pressure plates 310 are arranged on the fixed seat 306 and the movable seat 305.

[0023] Among them, a vertical frame 316 is fixedly connected to the left side of the cutting table 1, a hanging frame 322 is fixedly connected to the top of the vertical frame 316, an active pry plate 315 is rotatably connected to the lower end of the hanging frame 322, a handle 303 is fixedly connected to the left end of the active pry plate 315, the driving assembly includes a driving screw 304 rotatably connected to the inside of the fixed table 302, the rear end of the driving screw 304 is threadedly connected to the moving seat 305, a first motor 301 is fixedly connected to the surface of the cutting table 1, an output shaft of the first motor 301 is fixedly connected to the front end of the driving screw 304, and the moving seat 305 can be moved by the cooperation of the first motor 301 and the driving screw 304.

[0024] Among them, the multiple positioning pressure plates 310 are divided into two groups, and the upper surfaces of the uppermost positioning pressure plates 310 in the front and rear groups are fixedly connected with the second rotating frame 333 and the third rotating frame 334 respectively, and the upper surfaces of the multiple positioning pressure plates 310 located below the second rotating frame 333 and the third rotating frame 334 are fixedly connected with the first rotating frame 321, and the right end of the active pry plate 315 is rotatably connected to the second rotating frame 333, so that the multiple positioning pressure plates 310 are pressed on the abutment groove 314, and the positions of the multiple positioning pins 309 can be fixed, and the upper surfaces of the movable seat 305 and the fixed seat 306 are fixedly connected with multiple vertical plates 311, and the end of the positioning pin 309 close to the vertical plate 311 is fixedly connected with a guide rod 312, and the guide rod 312 is inserted into the inside of the vertical plate 311, and a driving spring 313 is fixedly connected between the positioning pin 309 and the vertical plate 311, and the positioning pin 309 can be tightly pressed against the surface of the pipe through the multiple driving springs 313.

[0025] The first driven pry plate 323 is rotatably connected to the surface of the third rotating frame 334, the lower surface of the left end of the first driven pry plate 323 is fixedly connected to the second connecting column 325, the lower surface of the left end of the active pry plate 315 is fixedly connected to the first connecting column 318, the surfaces of the first connecting column 318 and the second connecting column 325 are fixedly sleeved with a plurality of second driven pry plates 324, the right ends of the plurality of second driven pry plates 324 are respectively rotatably connected to the plurality of first rotating frames 321, and the active pry plate 315 is fixedly connected to the left end of the first driven pry plate 323. The cross bar 308 is connected. When the active pry plate 315 rotates, the first driven pry plate 323 can be synchronously driven to rotate by connecting the cross bar 308, thereby reducing the number of operation steps in the fixing process. The upper surfaces of the plurality of positioning pins 309 are provided with abutment grooves 314, and the end surfaces of the plurality of groups of transversely arranged positioning pins 309 are fixedly connected with rubber strips 307. When the positioning pins 309 abut against the pipe fittings, the rubber strips 307 can prevent the positioning pins 309 from directly contacting the pipe fittings, thereby further reducing the possibility of deformation of the pipe fittings. In addition, the rubber strips 307 can increase friction and improve the fixing effect on the pipe fittings.

[0026] Among them, two brackets 319 are fixedly connected to the left side of the top of the stand 316, and a hanger 326 is fixedly connected between the two brackets 319. Slots 328 are opened on both sides of the hanger 326. A plug post 327 is fixedly connected to the left end of the upper surface of the active pry plate 315. Two plug blocks 329 are slidably connected to the top of the plug post 327. The ends of the two plug blocks 329 close to each other are fixedly connected to a middle guide pin 331 and two side guide pins 330 respectively. The lower surfaces of the plurality of positioning pressure plates 310 are fixedly connected to rubber pads 317, and the positioning pressure plates 310 are pressed against the When the plug block 329 is aligned with the slot 328, the reset spring 332 will push the plug block 329 into the slot 328, so as to fix the positions of the multiple positioning pressure plates 310. The surfaces of the two plug blocks 329 are fixedly connected with handles 320, so that the two handles 320 are moved in a direction close to each other, so that the two plug blocks 329 can be separated from the slot 328.

[0027] By adopting the above technical solution, when cutting the pipe fitting, the pipe fitting is placed between the movable seat 305 and the fixed seat 306, and the pipe fitting is adjusted so that the cutting part of the pipe fitting is located directly below the cutting blade on the cutting assembly 2, and then the driving screw 304 is driven to rotate by the first motor 301, so that the movable seat 305 moves in the direction close to the fixed seat 306 until the plurality of positioning pins 309 are all against the surface of the pipe fitting, and as the movable seat 305 continues to move forward, the plurality of positioning pins 309 are all against the surface of the pipe fitting, so that the plurality of positioning pins 309 form The arc surface fits the outer surface of the pipe, and a plurality of driving springs 313 are used to provide thrust so that the positioning pins 309 can be firmly pressed against the surface of the pipe. Then, the handle 303 is held and lifted up to press the plurality of positioning pressure plates 310 against the abutment grooves 314. The positions of the plurality of positioning pins 309 are fixed by the friction between the rubber pads 317 and the abutment grooves 314, so that the pipe can be clamped by the plurality of positioning pins 309. This can avoid local stress concentration on the pipe, which may cause excessive pressure per unit area and lead to deformation of the pipe, and can adapt to pipes of various sizes.

[0028] When the handle 303 is lifted up, the column 327 will also be driven to move upward, so that the inclined surface of the plug block 329 is squeezed against the lower surface of the hanger 326, so that the plug block 329 is retracted into the plug column 327. At this time, the return spring 332 is in a compressed state, and as the plug block 329 continues to move, the return spring 332 will push the plug block 329 into the slot 328 when the plug block 329 is aligned with the slot 328, thereby fixing the positions of the multiple positioning pressure plates 310 to prevent the positioning pressure plates 310 from loosening, and the rubber pad 317 is deformable and elastic, so when the positioning pressure plate 310 is pressed on the abutment groove 314, the friction between the rubber pad 317 and the abutment groove 314 is used to fix the positions of the multiple positioning pins 309 to maintain the clamping effect on the pipe fittings. When releasing the fixation of the positioning pin 309, the gripping handles 320 are held at the same time and the two gripping handles 320 are moved toward each other, so that the two inserting blocks 329 can be disengaged from the slots 328 to release the fixation of the positioning pin 309, so as to facilitate the movement of the pipe fitting.

[0029] like Fig. 9 and Fig.10As shown, a straightening mechanism is arranged on the left side of the cutting table 1, and the straightening mechanism includes a placement frame 401 fixedly connected to the left side of the cutting table 1, a mounting seat 404 is fixedly connected to the upper surface of the right side of the placement frame 401, a correction frame 403 is fixedly connected to the upper surface of the mounting seat 404, a plurality of driven shafts 406 are rotatably connected inside the correction frame 403, and a plurality of driven shafts 406 are fixedly sleeved on the surfaces of the driven shafts 406, and a plurality of driven correction shafts 405 can be used to straighten the pipe fittings, so as to prevent the pipe fittings from bending before cutting and causing a decrease in the cutting accuracy of the pipe fittings, a rotating shaft 408 is rotatably connected inside the left end of the correction frame 403, and an active correction shaft 407 is fixedly sleeved on the surface of the rotating shaft 408.

[0030] Among them, a second motor 402 is fixedly connected to the upper surface of the right side of the placement rack 401, and the second motor 402 is used to drive the active correction shaft 407 to rotate to realize the movement of the pipe fitting. The output shaft of the second motor 402 is fixedly connected to the front end of the rotating shaft 408, and the active correction shaft 407 and the multiple driven correction shafts 405 are arranged alternately with each other.

[0031] By adopting the above technical solution, when cutting the pipe, the pipe is located between the active correction shaft 407 and the multiple driven correction shafts 405, and the active correction shaft 407 is driven to rotate by the second motor 402, and the active correction shaft 407 drives the pipe to pass through the correction frame 403. Therefore, during the movement of the pipe, the pipe can be straightened by the multiple driven correction shafts 405, which can prevent the pipe from bending before cutting, resulting in a decrease in the cutting accuracy of the pipe and affecting the quality of the pipe cutting.

[0032] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cutting device for pipe processing, comprising a cutting table (1) and a cutting assembly (2), wherein the cutting assembly (2) is fixedly connected to the surface of the cutting table (1), characterized in that: A positioning mechanism, the positioning mechanism is arranged on the upper surface of the cutting table (1), the positioning mechanism comprises a fixed table (302) fixedly connected to the surface of the cutting table (1), the upper surface of the fixed table (302) is slidably connected to a moving seat (305), the surface of the fixed table (302) is provided with a driving component for driving the moving seat (305), the upper surface of the rear end of the moving seat (305) is provided with a fixed seat (306), the fixed seat (306) and the moving seat (305) are slidably connected to the moving seat (305), 5) are provided with a plurality of positioning pins (309) at the ends of the longitudinal arms, a plurality of positioning pressure plates (310) are provided on the fixed seat (306) and the movable seat (305), a vertical frame (316) is fixedly connected to the left side of the cutting table (1), a hanging frame (322) is fixedly connected to the top of the vertical frame (316), an active prying plate (315) is rotatably connected to the lower end of the hanging frame (322), and a handle (303) is fixedly connected to the left end of the active prying plate (315).

2. A cutting device for pipe processing according to claim 1, characterized in that: The driving assembly comprises a driving screw (304) rotatably connected to the interior of the fixed table (302), the rear end of the driving screw (304) being threadedly connected to the movable seat (305), a first motor (301) being fixedly connected to the surface of the cutting table (1), and an output shaft of the first motor (301) being fixedly connected to the front end of the driving screw (304).

3. A cutting device for pipe processing according to claim 1, characterized in that: The plurality of positioning plates (310) are divided into two groups. The upper surfaces of the uppermost positioning plates (310) in the front and rear groups are respectively fixedly connected to the second rotating frame (333) and the third rotating frame (334). The upper surfaces of the plurality of positioning plates (310) located below the second rotating frame (333) and the third rotating frame (334) are all fixedly connected to the first rotating frame (321). The right end of the active pry plate (315) is rotatably connected to the second rotating frame (333). The upper surfaces of the movable seat (305) and the fixed seat (306) are both fixedly connected to the plurality of vertical plates (311). One end of the positioning pin (309) close to the vertical plate (311) is fixedly connected to a guide rod (312). The guide rod (312) is inserted into the interior of the vertical plate (311). A driving spring (313) is fixedly connected between the positioning pin (309) and the vertical plate (311).

4. A cutting device for pipe processing according to claim 3, characterized in that: The surface of the third rotating frame (334) is rotatably connected to a first driven pry plate (323); the lower surface of the left end of the first driven pry plate (323) is fixedly connected to a second connecting column (325); the lower surface of the left end of the active pry plate (315) is fixedly connected to a first connecting column (318); the surfaces of the first connecting column (318) and the second connecting column (325) are both fixedly sleeved with a plurality of second driven pry plates (324); the right ends of the plurality of second driven pry plates (324) are rotatably connected to the plurality of first rotating frames (321) respectively.

5. A cutting device for pipe processing according to claim 1, characterized in that: A connecting cross bar (308) is fixedly connected between the left ends of the active pry plate (315) and the first driven pry plate (323), abutment grooves (314) are provided on the upper surfaces of the plurality of positioning pins (309), and rubber strips (307) are fixedly connected to the end surfaces of the plurality of groups of transversely arranged positioning pins (309).

6. A cutting device for pipe processing according to claim 1, characterized in that: Two brackets (319) are fixedly connected to the left side of the top of the stand (316), a hanger (326) is fixedly connected between the two brackets (319), slots (328) are provided on both sides of the hanger (326), a plug post (327) is fixedly connected to the left end of the upper surface of the active pry plate (315), two plug blocks (329) are slidably connected to the top of the plug post (327), a middle guide pin (331) and two side guide pins (330) are fixedly connected at the ends of the two plug blocks (329) close to each other, and rubber pads (317) are fixedly connected to the lower surfaces of the plurality of positioning pressure plates (310).

7. A cutting device for pipe processing according to claim 6, characterized in that: The ends of the middle guide pin (331) and the two side guide pins (330) are fixedly connected with a return spring (332), and the surfaces of the two insert blocks (329) are fixedly connected with a gripping handle (320).

8. A cutting device for pipe processing according to claim 1, characterized in that: A straightening mechanism is arranged on the left side of the cutting table (1), and comprises a placing frame (401) fixedly connected to the left side of the cutting table (1); a mounting seat (404) is fixedly connected to the upper surface of the right side of the placing frame (401); a correction frame (403) is fixedly connected to the upper surface of the mounting seat (404); a plurality of driven shafts (406) are rotatably connected inside the correction frame (403); surfaces of the plurality of driven shafts (406) are fixedly sleeved with driven correction shafts (405); a rotating shaft (408) is rotatably connected inside the left end of the correction frame (403); and an active correction shaft (407) is fixedly sleeved on the surface of the rotating shaft (408).

9. A cutting device for pipe processing according to claim 8, characterized in that: A second motor (402) is fixedly connected to the upper right surface of the placement rack (401), and an output shaft of the second motor (402) is fixedly connected to the front end of the rotating shaft (408).

10. A cutting device for pipe processing according to claim 8, characterized in that: The active correction shaft (407) and the plurality of driven correction shafts (405) are arranged alternately with each other.

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