Double-station double-tool-bit sawing and chamfering machine tool for pipes

Abstract

The invention relates to a double-station double-tool-bit sawing and chamfering machine tool for pipes. The technical problem that existing pipe fitting machining efficiency is low is solved. Comprising a rack, a horizontally-arranged operation table is arranged at the upper end of the rack, a containing frame assembly used for containing a plurality of pipe fittings is arranged on the operation table, and pipe fitting clamping structures used for clamping and fixing the pipe fittings are arranged at the two ends of the operation table correspondingly; pipe sawing-off structures located on one side of the pipe clamping structure are movably arranged at the two ends of the operation table and located on the same side of the operation table respectively, pipe composite chamfering structures are movably arranged at the two ends of the operation table respectively, and each pipe composite chamfering structure is provided with a plurality of pipe composite chamfering tool bits in one-to-one correspondence with the end of the corresponding pipe. The machining device has the advantages that the pipe sawing structures and the pipe composite chamfering structures are arranged at the two ends of the operation table, the two ends of a pipe can be machined at the same time, the pipe does not need to be clamped, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe processing equipment, and in particular relates to a double-station double-knife head sawing and chamfering machine tool for pipes. Background Art

[0002] In the industrial production process, pipe fittings mostly need to be processed, and the existing pipe processing methods mostly cut and chamfer one end of the pipe fitting by a CNC lathe, and after the processing of one end of the pipe fitting is completed, it needs to be turned around manually to process the other end of the pipe fitting, resulting in cumbersome processing procedures, low processing efficiency and high labor costs; and when processing long pipes, it is time-consuming and laborious for workers to load and unload materials, and the labor intensity of workers is high, which further reduces the processing efficiency.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a sawing and chamfering machine and a sawing and chamfering method thereof [202110355869.8], which includes a first frame and a second frame that are close to and connected together, a sawing mechanism for sawing coffins is installed on the first frame, a clamping and feeding mechanism is slidably installed on the first frame upstream of the sawing mechanism, and a sawing clamping tool is provided on the first frame below the sawing mechanism; a chamfering device driven by a first power device is slidably installed on the second frame, and a bracket is also provided on the second frame, and a swing-type clamping and feeding device for transferring materials between the chamfering device and the sawing and clamping tool is provided on the bracket, and a swing-type clamping and feeding device is provided on the bracket on one side of the swing-type clamping and feeding device.

[0004] The above scheme has solved the problem of low efficiency of existing pipe processing to a certain extent, but the scheme still has many shortcomings. For example, after the pipe is sawed, it is necessary to place the pipe on the chamfering clamping tooling through a swinging clamping feeding device, and the pipe is chamfered by the chamfering device. The chamfering of the pipe needs to be clamped and fed, which affects the processing efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a double-station double-head sawing and chamfering machine tool for pipes in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a double-station double-head sawing and chamfering machine for pipes, comprising a frame, a horizontally arranged operating table at the upper end of the frame, a placing frame assembly for placing a plurality of pipe fittings on the operating table, pipe clamping structures for clamping and fixing each pipe fitting are respectively provided at both ends of the operating table, pipe sawing structures located on one side of the pipe clamping structure are movably provided at both ends of the operating table and on the same side of the operating table, pipe composite chamfering structures are movably provided at both ends of the operating table, and the pipe composite chamfering structure has a plurality of pipe composite chamfering cutter heads corresponding to each end of each pipe fitting respectively, and the pipe composite chamfering structure can synchronously chamfer the two ends of the pipe fitting to improve the pipe chamfering efficiency, and the pipe composite chamfering cutter head can complete the inner or outer chamfering of the two ends of the pipe fitting.

[0007] In the above-mentioned double-station double-head sawing and chamfering machine for pipes, the placement frame assembly includes a positioning bracket vertically arranged in the middle of the upper end of the operating table, and the upper end of the positioning bracket is sequentially provided with two positioning grooves located on the same horizontal plane, an auxiliary bracket is provided on one side of the positioning bracket, and the upper end of the auxiliary bracket is provided with two auxiliary grooves, the auxiliary grooves and the positioning grooves are located on the same horizontal plane and correspond one to one, the pipe fittings are arranged in the positioning grooves and can be supported by the positioning bracket, and the two ends of the pipe fittings can be supported by the auxiliary bracket, thereby ensuring that both ends of the pipe fittings are on the same horizontal plane and ensuring the processing effect at both ends of the pipe fittings.

[0008] In the above-mentioned double-station double-head sawing and chamfering machine for pipes, a cutting slide capable of axially reciprocating along the length direction of the operating table is provided on the operating table through a cutting sliding drive mechanism, the pipe sawing structure and the pipe clamping structure are respectively fixed on the cutting slide, and the pipe composite chamfering structure is movably arranged on the cutting slide and can reciprocate along the length direction of the cutting slide. The cutting slide can drive the pipe sawing structure, the pipe clamping structure and the pipe composite chamfering structure to synchronously displace, which is convenient for adjusting the length of the pipe sawing process, is suitable for pipes of various lengths, and improves processing practicability.

[0009] In the above-mentioned double-station double-head sawing and chamfering machine for pipes, the cutting slide has a chip outlet on the side close to the placement rack assembly, the pipe composite chamfering structure is located on the side of the chip outlet away from the placement rack assembly, and the pipe clamping structure and the pipe sawing structure are located on the side of the chip outlet close to the placement rack assembly, which can facilitate the pipe composite chamfering structure to chamfer the end of the pipe.

[0010] In the above-mentioned pipe double-station double-head sawing and chamfering machine, the cutting sliding drive mechanism includes a plurality of slide rails axially arranged along the length direction of the operating table, a plurality of sliders slidably connected to the slide rails are arranged at the lower side of the cutting slide, a slide driving rack located on one side of the slide rail and arranged parallel to the slide rail is arranged on one side of the operating table, a slide driving motor is arranged on one side of the cutting slide, and a sliding driving gear meshing with the slide driving rack is arranged on the output shaft of the slide driving motor, a brake strip located between the slide rail and the slide driving rack is arranged on the operating table, and a brake disc connected to the cutting slide is arranged at one end of the brake strip, the cutting slide can be slidably arranged on the operating table through the slide rail and the slider, and the cutting slide can be driven to slide through the slide driving rack through the slide driving motor and the slide driving gear, and the brake disc is arranged on the brake strip as the cutting slide slides, and the brake strip can be clamped and braked through the brake disc to control the cutting slide to stop sliding, thereby ensuring that the user can easily control the cutting slide and improve the processing efficiency.

[0011] In the above-mentioned double-station double-head sawing and chamfering machine for pipes, a cutting bracket is vertically provided on one side of the cutting slide, a cutting swing arm is rotatably provided on one side of the cutting bracket, the pipe sawing structure is arranged at an end of the cutting swing arm away from the cutting bracket, and the other side of the cutting bracket is provided with a swing arm driving cylinder connected to the cutting swing arm and capable of making the cutting swing arm swing circumferentially above the pipe clamping structure and the pipe composite chamfering structure. The pipe sawing structure is a circular saw machine and the pipe sawing structure includes a circular saw driving motor arranged on one side of the cutting swing arm, a circular saw blade located on the other side of the cutting swing arm is connected to the output shaft of the circular saw driving motor, the pipe can be sawed by the circular saw blade, and the circular saw blade can be driven to rotate by the circular saw driving motor to ensure the sawing effect.

[0012] ] a plurality of chamfering slide plates are provided on the chamfering slide plate, and a plurality of chamfering slide rails are provided on the chamfering slide plate to facilitate adjustment of the position of the chamfering slide plate and to enable the chamfering slide plate to be slidably connected to the chamfering slide rails.

[0013] In the above-mentioned double-station double-head sawing and chamfering machine for pipes, the chamfering pushing assembly includes a chamfering pushing motor arranged on the cutting slide, the output shaft of the chamfering pushing motor is connected to one end of the chamfering arm through a reducer, the other end of the chamfering arm is connected to one end of the chamfering arm, and the other end of the chamfering arm is connected to one side of the chamfering slide plate. The chamfering pushing motor can control the chamfering arm and the chamfering arm to drive the chamfering slide plate to move.

[0014] In the above-mentioned double-station double-head sawing and chamfering machine for pipes, the pipe clamping structure includes a tooling frame arranged on the cutting slide and located on the side of the chip outlet away from the pipe composite chamfering structure. The tooling frame is provided with a tooling V-block having two V-grooves corresponding to the positioning grooves one by one. Lever cylinders are respectively provided on both sides of the tooling frame, and clamping blocks corresponding to the V-grooves are respectively provided on the swing arms of the lever cylinders. The pipe is arranged in the V-groove and supported by the tooling V-block. The swing arm can be controlled by the lever cylinder to ensure that the clamping effect of the pipe is accelerated, so that the pipe is fixed in the V-groove 42.

[0015] In the above-mentioned double-station double-head sawing and chamfering machine for pipes, a guard plate is provided on the outer side of the operating table, and an operating window is provided in the middle of the side of the operating table away from the pipe sawing structure. The two sides of the operating window are respectively connected with baffles sliding toward the inner side of the operating window through movable cylinders, and a positioning rod that can swing toward the chip outlet is connected with a rotating cylinder on the side of the cutting slide close to the operating window. Chip dropping holes are respectively provided at both ends of the operating table, and the chip dropping holes have chip guide slopes corresponding to the chip outlet. Below the chip dropping holes, a chip cart located at the lower end of the frame and having a plurality of wheels is provided. The chips in the chip outlet fall onto the chip guide slope through the chip dropping holes, and the chips in the chip guide slope can be collected by the chip cart, which is convenient for users to collect and clean the chips.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. Both ends of the operating table are equipped with pipe sawing structure and pipe composite chamfering structure, which can process both ends of the pipe at the same time without clamping the pipe, thus improving the processing efficiency.

[0018] 2. The cutting slide drive mechanism can control the displacement of the cutting slide, which is convenient for adjusting the processing length and is suitable for the processing needs of pipes of various lengths.

[0019] 3. The chamfering push component can facilitate the displacement of the composite chamfering structure of the pipe fitting toward the pipe fitting, so that the composite chamfering structure of the pipe fitting can chamfer the pipe fitting and ensure the chamfering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the operating table in the present invention.

[0022] Figure 3 It is a structural schematic diagram of the chamfering pushing component in the present invention.

[0023] Figure 4 It is a structural schematic diagram of the pipe clamping structure in the present invention.

[0024] Figure 5 It is a structural schematic diagram of the composite chamfer structure of the pipe fitting in the present invention.

[0025] In the figure: frame 1, operating table 11, guard plate 111, operating window 112, movable cylinder 113, baffle 114, rotating cylinder 115, positioning rod 116, chip drop hole 117, chip guide slope 118, iron chip car 119, pipe 2, placement rack assembly 3, positioning bracket 31, positioning groove 32, auxiliary bracket 33, auxiliary groove 34, pipe clamping structure 4, tooling rack 41, V-shaped groove 42, tooling V block 43, lever cylinder 44, swing arm 45, clamping block 46, pipe sawing structure 5, circular saw machine 51, circular saw drive motor 52, circular saw blade 5 3. Composite chamfering structure for pipe fittings 6, composite chamfering cutter head for pipe fittings 61, chamfering slide plate 62, chamfering slide rail 63, chamfering slider 64, chamfering drive motor 65, cutting sliding drive mechanism 7, slide rail 71, slider 72, slide drive rack 73, slide drive motor 74, sliding drive gear 75, brake strip 76, brake disc 77, cutting slide 8, chip outlet 81, cutting bracket 82, cutting swing arm 83, swing arm drive cylinder 84, chamfering push assembly 9, chamfering push motor 91, reducer 92, chamfering upper arm 93, chamfering lower arm 94. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, a double-station double-blade sawing and chamfering machine tool for pipes includes a frame 1, and a horizontally arranged operating table 11 is provided on the upper end of the frame 1. A placement rack assembly 3 for placing a plurality of pipe fittings 2 is provided on the operating table 11. The placement rack assembly 3 can facilitate the placement of the pipe fittings 2 and improve the placement efficiency of the pipe fittings 2. Pipe fitting clamping structures 4 for clamping and fixing each pipe fitting 2 are respectively provided at both ends of the operating table 11, and the pipe fitting clamping structures 4 can facilitate the fixing of the pipe fittings 2 on the placement rack assembly 3 to ensure the clamping stability of the pipe fittings 2 and the processing effect of the pipe fittings 2. The two ends of the operating table 11 are located on the same side of the operating table 11. A pipe sawing structure 5 is movably provided on one side of the pipe clamping structure 4. The pipe sawing structure 5 can saw the pipe 2, and can saw both ends of the pipe 2 at the same time, thereby improving the sawing efficiency. A pipe composite chamfering structure 6 is movably provided on both ends of the operating table 11, and the pipe composite chamfering structure 6 has a plurality of pipe composite chamfering heads 61 corresponding to the ends of each pipe 2. The pipe composite chamfering structure 6 can synchronously chamfer the two ends of the pipe 2, thereby improving the chamfering efficiency of the pipe 2, and the pipe composite chamfering head 61 can complete the inner or outer chamfering of the two ends of the pipe 2.

[0028] Specifically, the placement rack assembly 3 includes a positioning bracket 31 vertically arranged in the middle of the upper end of the operating table 11, and two positioning grooves 32 located on the same horizontal plane are sequentially arranged on the upper end of the positioning bracket 31, an auxiliary bracket 33 is arranged on one side of the positioning bracket 31, and two auxiliary grooves 34 are arranged on the upper end of the auxiliary bracket 33, the auxiliary grooves 34 and the positioning grooves 32 are located on the same horizontal plane and correspond one to one, the pipe fitting 2 is arranged in the positioning groove 32 and can be supported by the positioning bracket 31, and the two ends of the pipe fitting 2 can be supported by the auxiliary bracket 33, thereby ensuring that the two ends of the pipe fitting 2 are on the same horizontal plane and ensuring the processing effect at both ends of the pipe fitting 2.

[0029] Among them, a cutting slide 8 which can axially reciprocate along the length direction of the operating table 11 is provided on the operating table 11 through a cutting sliding drive mechanism 7. The pipe sawing structure 5 and the pipe clamping structure 4 are respectively fixed on the cutting slide 8. The pipe composite chamfering structure 6 is movably arranged on the cutting slide 8 and can reciprocate along the length direction of the cutting slide 8. The cutting slide 8 can drive the pipe sawing structure 5, the pipe clamping structure 4 and the pipe composite chamfering structure 6 to perform synchronous displacement, which is convenient for adjusting the sawing length of the pipe 2. It is suitable for pipes 2 of various lengths and improves processing practicability.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the cutting slide 8 has a chip outlet 81 on the side close to the placement rack assembly 3, through which the chip outlet 81 can facilitate chip removal of the pipe 2 during processing, facilitate continuous processing of the pipe 2, and effectively prevent the debris generated during processing from affecting the processing effect of the pipe 2. The pipe composite chamfering structure 6 is located on the side of the chip outlet 81 away from the placement rack assembly 3, and the pipe clamping structure 4 and the pipe sawing structure 5 are located on the side of the chip outlet 81 close to the placement rack assembly 3, which can facilitate the pipe composite chamfering structure 6 to chamfer the end of the pipe 2.

[0031] Furthermore, the cutting slide drive mechanism 7 includes a plurality of slide rails 71 axially arranged along the length direction of the operating table 11, a plurality of sliders 72 slidably connected to the slide rails 71 are arranged on the lower side of the cutting slide 8, a slide drive rack 73 is arranged on one side of the slide rail 71 and parallel to the slide rail 71 on one side of the operating table 11, a slide drive motor 74 is arranged on one side of the cutting slide 8, a motor cover is arranged on the outer side of the slide drive motor 74 to protect the slide drive motor 74, and a sliding drive gear 75 meshing with the slide drive rack 73 is arranged on the output shaft of the slide drive motor 74, and a slide drive gear 75 meshing with the slide drive rack 73 is arranged on the operating table 11 A brake strip 76 is provided between the table slide rail 71 and the slide driving rack 73, and a brake disc 77 connected to the cutting slide 8 is provided at one end of the brake strip 76. The cutting slide 8 can be slidably set on the operating table 11 through the slide rail 71 and the slider 72, and the cutting slide 8 can be driven to slide through the slide driving rack 73 through the slide driving motor 74 and the slide driving gear 75, and the brake disc 77 is set on the brake strip 76 as the cutting slide 8 slides, and the brake strip 76 can be clamped and braked through the brake disc 77 to control the cutting slide 8 to stop sliding, thereby ensuring that the user can easily control the cutting slide 8 and improving the processing efficiency.

[0032] A cutting bracket 82 is vertically arranged on one side of the cutting slide 8, and a cutting swing arm 83 is rotatably arranged on one side of the cutting bracket 82. The cutting swing arm 83 can be easily installed and supported by the cutting bracket 82. The pipe sawing structure 5 is arranged at one end of the cutting swing arm 83 away from the cutting bracket 82, and the pipe sawing structure 5 can be controlled to move up and down by the cutting swing arm 83, so as to facilitate cutting of the pipe 2. A swing arm driving cylinder 84 is arranged on the other side of the cutting bracket 82, which is connected to the cutting swing arm 83 and can make the cutting swing arm 83 swing circumferentially above the pipe clamping structure 4 and the pipe composite chamfering structure 6. There is a swing arm cylinder cover, which can protect the swing arm driving cylinder 84. The swing arm driving cylinder 84 is connected to the cutting swing arm 83 through a swing arm reducer, and the cutting swing arm 83 can be controlled to move up and down through the swing driving cylinder 84. The pipe sawing structure 5 is a circular saw machine 51 and the pipe sawing structure 5 includes a circular saw driving motor 52 arranged on one side of the cutting swing arm 83. The output shaft of the circular saw driving motor 52 is connected to a circular saw blade 53 located on the other side of the cutting swing arm 83. The circular saw blade 53 can be used to saw the pipe 2, and the circular saw driving motor 52 can drive the circular saw blade 53 to rotate to ensure the sawing effect.

[0033] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the pipe composite chamfering structure 6 includes a chamfering slide plate 62 movably arranged on the cutting slide 8, a plurality of chamfering slide rails 63 axially arranged along the length direction of the chamfering slide plate 62 are arranged on the lower side of the chamfering slide plate 62, a plurality of chamfering sliders 64 slidably connected to the chamfering slide rails 63 are arranged on the cutting slide 8, a chamfering drive motor 65 is arranged on the chamfering slide plate 62, and the number of pipe composite chamfering cutter heads 61 is two and the pipe composite chamfering cutter heads 61 are respectively arranged on both sides of the chip outlet 81 in a one-to-one correspondence with the pipe clamping structure 4, and the pipe composite chamfering cutter heads 61 are arranged on both sides of the chip outlet 81, and the pipe composite chamfering cutter heads 61 are arranged on both sides of the chip outlet 81 in a one-to-one correspondence with the pipe clamping structure 4. The combined chamfering cutter heads 61 are respectively connected to the chamfering drive motors 65. A chamfering pushing assembly 9 is provided between the cutting slide 8 and the chamfering slide plate 62, which can drive the chamfering slide plate 62 to slide back and forth along the axial direction of the cutting slide 8. The chamfering driving motor 65 can control the pipe composite chamfering cutter head 61 to chamfer the end of the pipe 2, and the chamfering pushing assembly 9 can drive the chamfering slide plate 62 to slide on the chamfering slide rail 63 and be set on the chamfering slider 64, which is convenient for adjusting the position of the chamfering slide plate 62 and is suitable for processing pipes 2 of various lengths.

[0034] Among them, the chamfering pushing assembly 9 includes a chamfering pushing motor 91 arranged on the cutting slide 8, the output shaft of the chamfering pushing motor 91 is connected to one end of the chamfering arm 93 through the reducer 92, the other end of the chamfering arm 93 is connected to one end of the chamfering arm 94, and the other end of the chamfering arm 94 is connected to one side of the chamfering slide plate 62. The chamfering pushing motor 91 can control the chamfering arm 93 and the chamfering arm 94 to drive the chamfering slide plate 62 to move.

[0035] Specifically, the pipe clamping structure 4 includes a tooling frame 41 arranged on the cutting slide 8 and located on the side of the chip outlet 81 away from the pipe composite chamfering structure 6. The tooling frame 41 is provided with a tooling V-block 43 having two V-grooves 42 corresponding to the positioning grooves 32 respectively. Lever cylinders 44 are respectively provided on both sides of the tooling frame 41, and the swing arms 45 of the lever cylinders 44 are respectively provided with clamping blocks 46 corresponding to the V-grooves 42. The pipe 2 is arranged in the V-groove 42 and supported by the tooling V-block 43. The swing arm 45 can be controlled by the lever cylinder 44 to ensure the clamping effect of the acceleration 46 on the pipe 2, so that the pipe 2 is fixedly arranged in the V-groove 42.

[0036] Combination Figure 1 , Figure 2 , Figure 3As shown, a guard plate 111 is provided on the outer side of the operating table 11, and the guard plate 111 can protect the operator. An operating window 112 is provided in the middle of the side of the operating table 11 away from the pipe sawing structure 5. The operating window 112 has an operating box arranged on one side of the operating table 11 and extending beyond the guard plate 111 and arranged in the middle of the operating table 11. The user can control the operating box through the operating window 112. Baffles 114 that slide toward the inside of the operating window 112 are connected to both sides of the operating window 112 through active cylinders 113. The baffles 114 are made of acrylic material. The baffles 114 can be controlled to slide and move through the active cylinder 113 to ensure the effect of resisting debris. A rotating cylinder 115 is connected to the side of the cutting slide 8 close to the operating window 112. The positioning rod 116 that swings at the chip outlet 81 can position the sawing position of the pipe 2 through the positioning rod 116 to ensure the sawing effect, and the operating table 11 is provided with control buttons that respectively control the cutting slides 8 at both ends on the side away from the operating box, and the control button is provided with an emergency stop button connected to the brake disc control, and one side of the emergency stop button is provided with a start button for controlling the operation of the cutting slide 8, and the two ends of the operating table 11 are respectively provided with chip dropping holes 117, and the chip dropping holes 117 have a chip guide slope 118 corresponding to the chip outlet 81, and below the chip dropping holes 117 is provided a chip cart 119 located at the lower end of the frame 1 and having a plurality of wheels, and the debris in the chip outlet 81 falls onto the chip guide slope 118 through the chip dropping holes 117, and the debris in the chip guide slope 118 can be collected by the chip cart 119, so that the user can collect and clean the debris.

[0037] The principle of this embodiment is that the pipe 2 is placed in the operating table 11 through the placement rack assembly 3, and both ends of the pipe 2 are clamped by the pipe clamping structure 4, and the sawing position of the pipe 2 is determined by the positioning rod 116, the swing arm driving cylinder 84 controls the cutting swing arm 83 to drive the pipe sawing structure 5 to move downward, and the pipe 2 is sawed by the pipe sawing structure 5, and after the sawing is completed, the pipe sawing structure 5 is controlled to rise by the cutting swing arm 83, the pipe composite chamfering structure 6 slides toward the end of the pipe 2 through the chamfering pushing assembly 9, and the two ends of the pipe 2 are chamfered simultaneously by the pipe composite chamfering structure 6 to ensure the chamfering efficiency, and after the chamfering is completed, the pipe composite chamfering structure 6 is controlled to reset by the chamfering pushing assembly 9, the pipe clamping structure 4 is opened, and the processing of the pipe 2 is completed.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0039] Although this article uses more frame 1, operating table 11, guard plate 111, operating window 112, movable cylinder 113, baffle 114, rotating cylinder 115, positioning rod 116, chip drop hole 117, chip guide slope 118, iron chip car 119, pipe 2, placement rack assembly 3, positioning bracket 31, positioning groove 32, auxiliary bracket 33, auxiliary groove 34, pipe clamping structure 4, tooling frame 41, V-shaped groove 42, tooling V block 43, lever cylinder 44, swing arm 45, clamping block 46, pipe sawing structure 5, circular saw machine 51, circular saw drive motor 52, circular saw blade 53, pipe composite chamfering structure 6 , pipe composite chamfering cutter head 61, chamfering slide plate 62, chamfering slide rail 63, chamfering slider 64, chamfering drive motor 65, cutting slide drive mechanism 7, slide rail 71, slider 72, slide drive rack 73, slide drive motor 74, slide drive gear 75, brake strip 76, brake disc 77, cutting slide 8, chip outlet 81, cutting bracket 82, cutting swing arm 83, swing arm drive cylinder 84, horizontal sliding drive mechanism 9, chamfering push assembly 9, chamfering push motor 91, reducer 92, chamfering big arm 93, chamfering small arm 94 and other terms, but does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A double-station double-blade sawing and chamfering machine tool for pipes, comprising a frame (1), wherein the upper end of the frame (1) has a horizontally arranged operating table (11), characterized in that: The operating table (11) is provided with a placement rack assembly (3) for placing a plurality of pipe fittings (2), and pipe fitting clamping structures (4) for clamping and fixing the pipe fittings (2) are respectively provided at both ends of the operating table (11), and pipe fitting sawing structures (5) located on one side of the pipe fitting clamping structure (4) are respectively movably provided at both ends of the operating table (11) and located on the same side of the operating table (11), and pipe fitting composite chamfering structures (6) are respectively movably provided at both ends of the operating table (11), and the pipe fitting composite chamfering structure (6) has a plurality of pipe fitting composite chamfering cutter heads (61) corresponding to the ends of the pipe fittings (2) one by one.

2. A pipe double-station double-head sawing and chamfering machine tool according to claim 1, characterized in that: The placement rack assembly (3) comprises a positioning bracket (31) vertically arranged in the middle of the upper end of the operating table (11), the upper end of the positioning bracket (31) is provided with two positioning grooves (32) located on the same horizontal plane in sequence, an auxiliary bracket (33) is provided on one side of the positioning bracket (31), and the upper end of the auxiliary bracket (33) is provided with two auxiliary grooves (34), and the auxiliary grooves (34) and the positioning grooves (32) are located on the same horizontal plane and correspond one to one.

3. A pipe double-station double-head sawing and chamfering machine tool according to claim 2, characterized in that: The operating table (11) is provided with a cutting slide (8) capable of axially reciprocating along the length direction of the operating table (11) through a cutting slide drive mechanism (7); the pipe sawing structure (5) and the pipe clamping structure (4) are respectively fixed on the cutting slide (8); and the pipe composite chamfering structure (6) is movably arranged on the cutting slide (8) and capable of reciprocating along the length direction of the cutting slide (8).

4. A pipe double-station double-head sawing and chamfering machine tool according to claim 3, characterized in that: The cutting slide (8) has a chip outlet (81) on the side close to the placement rack assembly (3), the pipe composite chamfering structure (6) is located on the side of the chip outlet (81) away from the placement rack assembly (3), and the pipe clamping structure (4) and the pipe sawing structure (5) are located on the side of the chip outlet (81) close to the placement rack assembly (3).

5. A pipe double-station double-head sawing and chamfering machine tool according to claim 3 or 4, characterized in that: The cutting slide drive mechanism (7) comprises a plurality of slide rails (71) axially arranged along the length direction of the operating table (11); a plurality of sliders (72) slidably connected to the slide rails (71) are arranged on the lower side of the cutting slide (8); a slide drive rack (73) located on one side of the slide rail (71) and arranged parallel to the slide rail (71) is arranged on one side of the operating table (11); a slide drive motor (74) is arranged on one side of the cutting slide (8); a slide drive gear (75) meshing with the slide drive rack (73) is arranged on the output shaft of the slide drive motor (74); a brake strip (76) located between the slide rail (71) and the slide drive rack (73) is arranged on the operating table (11); and a brake disc (77) connected to the cutting slide (8) is arranged at one end of the brake strip (76).

6. A pipe double-station double-head sawing and chamfering machine tool according to claim 4, characterized in that: A cutting bracket (82) is vertically provided on one side of the cutting slide (8), a cutting swing arm (83) is rotatably provided on one side of the cutting bracket (82), the pipe sawing structure (5) is arranged at one end of the cutting swing arm (83) away from the cutting bracket (82), and a swing arm driving cylinder (84) connected to the cutting swing arm (83) and capable of causing the cutting swing arm (83) to swing circumferentially above between the pipe clamping structure (4) and the pipe composite chamfering structure (6) is provided on the other side of the cutting bracket (82), the pipe sawing structure (5) is a circular saw machine (51) and the pipe sawing structure (5) includes a circular saw driving motor (52) arranged on one side of the cutting swing arm (83), and a circular saw blade (53) located on the other side of the cutting swing arm (83) is connected to the output shaft of the circular saw driving motor (52).

7. A pipe double-station double-head sawing and chamfering machine tool according to claim 4, characterized in that: The pipe composite chamfering structure (6) includes a chamfering slide plate (62) movably arranged on a cutting slide (8), a plurality of chamfering slide rails (63) axially arranged along the length direction of the chamfering slide plate (62) are arranged on the lower side of the chamfering slide plate (62), a plurality of chamfering sliders (64) slidably connected to the chamfering slide rails (63) are arranged on the cutting slide (8), a chamfering drive motor (65) is arranged on the chamfering slide plate (62), and the number of the pipe composite chamfering cutter heads (61) is two and the pipe composite chamfering cutter heads (61) are respectively arranged on both sides of the chip outlet (81) in a one-to-one correspondence with the pipe clamping structure (4), the pipe composite chamfering cutter heads (61) are respectively connected to the chamfering drive motor (65), and a chamfering driving component (9) capable of driving the chamfering slide plate (62) to slide back and forth axially along the cutting slide (8) is arranged between the cutting slide (8) and the chamfering slide plate (62).

8. The double-station double-head sawing and chamfering machine tool for pipes according to claim 7, characterized in that: The chamfering push assembly (9) includes a chamfering push motor (91) arranged on the cutting slide (8), the output shaft of the chamfering push motor (91) is connected to one end of the chamfering arm (93) through a reducer (92), the other end of the chamfering arm (93) is connected to one end of the chamfering arm (94), and the other end of the chamfering arm (94) is connected to one side of the chamfering slide plate (62).

9. The double-station double-head sawing and chamfering machine tool for pipes according to claim 4, characterized in that: The pipe clamping structure (4) comprises a tooling frame (41) arranged on the cutting slide (8) and located on the side of the chip outlet (81) away from the pipe composite chamfering structure (6); the tooling frame (41) is provided with a tooling V block (43) having two V-shaped grooves (42) corresponding to the positioning grooves (32) respectively; lever cylinders (44) are respectively provided on both sides of the tooling frame (41); and clamping blocks (46) corresponding to the V-shaped grooves (42) are respectively provided on the swing arms (45) of the lever cylinders (44).

10. A pipe double-station double-head sawing and chamfering machine tool according to claim 4, characterized in that: The operating table (11) is provided with a guard plate (111) on the outer side in the circumferential direction. An operating window (112) is provided in the middle of a side of the operating table (111) away from the pipe sawing structure (5). Baffles (114) that slide toward the inside of the operating window (112) are connected to both sides of the operating window (112) through movable cylinders (113). A positioning rod (116) that can swing toward a chip outlet (81) is connected to the side of the cutting slide (8) close to the operating window (112) through a rotating cylinder (115). Chip dropping holes (117) are provided at both ends of the operating table (11). A chip guiding inclined surface (118) corresponding to the chip outlet (81) is provided in the chip dropping hole (117). A chip cart (119) with a plurality of wheels is provided below the chip dropping hole (117) and is located at the lower end of the frame (1).

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