Multi-chuck zero tail material loading and unloading pipe cutting production line

Abstract

The present invention provides a multi-chuck zero-tail loading and unloading pipe cutting production line, which belongs to the field of pipe cutting technology. The frame is provided with parallel rails arranged along the length direction of the frame, and at least a front chuck, a middle chuck and a rear chuck are provided on the parallel rails, and a cutting mechanism is arranged on the cutting gantry; the frame is provided with a lifting and following centering support mechanism, a line end following unloading mechanism and a line end clamping mechanism. The lifting and following and centering of the present invention are accurate, and effectively and reasonably coordinate the changes in the following pipe movement during the pipe cutting process. The inclined unloading of the present invention is conducive to the direct tilted downward autonomous rolling unloading of the pipe after cutting from the cutting production line, which is convenient, fast and easy to control. The line end clamping mechanism of the present invention enables the gripper to approach the center pipe grabbing space, thereby powerfully grabbing the pipe at the center. The compound action of the present invention is fast and effective, the movement is precise, and it is convenient for electrified precise control.

Description

Technical Field

[0001] The invention relates to the technical field of pipe cutting, in particular to a multi-chuck zero-tail material loading and unloading pipe cutting production line. Background Art

[0002] In general, most of the pipe cutting equipment under the existing technology includes at least three chucks that can move left and right and rotate synchronously. During normal cutting, the chuck grabs the pipe and moves forward and rotates, and the cutting head is used to cut the pipe. Because the setting of the chuck of traditional pipe cutting equipment is different according to the process, some will produce tails, and the production of tail pipes brings waste of raw materials. The patent document with publication number CN109175730A is named: Fully movable multi-chuck cutting device and method. This technology can minimize tails and save costs, but it still cannot achieve zero tails. In addition, when the multi-chuck pipe cutting equipment is loading the pipe, for the centering of pipes of different diameters, the self-centering clamp of the multi-chuck cannot well ensure that the entire length of the pipe is on the central axis. There is also a lack of post-processing equipment for the cut pipe at the end of the line. Summary of the invention

[0003] The technical task of the present invention is to solve the deficiencies of the prior art and provide a multi-chuck zero-tail material loading and unloading pipe cutting production line.

[0004] The technical solution of the present invention is implemented in the following manner. The multi-chuck zero-tail material loading and unloading pipe cutting production line of the present invention includes a frame, and the frame is provided with parallel rails arranged along the length direction of the frame, and at least a front chuck, a middle chuck and a rear chuck are provided on the parallel rails, and a cutting gantry is provided, and a cutting mechanism is arranged on the cutting gantry; the frame is provided with a lifting and following centering support mechanism, a line end following unloading mechanism and a line end clamping mechanism.

[0005] Specifically,

[0006] The front chuck, the middle chuck, the rear chuck and the cutting gantry are respectively arranged on the rails through independent rail frames and are slidably connected with the rails.

[0007] The front chuck, middle chuck, rear chuck and cutting gantry are respectively equipped with independent walking mechanisms for precise reciprocating travel along the track.

[0008] The lifting follow-up centering support mechanism, the line end follow-up unloading mechanism and the line end clamping mechanism are respectively equipped with independent electric power mechanisms.

[0009] The frame is equipped with a lifting and following centering support mechanism composed of a double roller with a flat rotating pipe edge that clamps the pipe and has a two-level lifting action, a line-end following unloading mechanism for radial lateral unloading of the pipe, and a line-end clamping mechanism with four claws double-linked clamping the pipe.

[0010] The loading section of the frame is equipped with a lifting follower centering support mechanism fixing unit, which is arranged below the track and arranged in sequence along the track direction. At least two sets of lifting follower centering support mechanisms are configured in the sequentially arranged lifting follower centering support mechanism fixing units.

[0011] The lifting and following centering support mechanism of the pipe cutting production line includes a fixed base, a first-level lifting seat and a second-level lifting frame.

[0012] A first-stage elevator is fixedly connected to the bottom of the fixed base, and a lifting push rod of the first-stage elevator passes through the fixed base from the bottom of the fixed base. The top of the lifting push rod is fixedly connected to a first-stage lifting seat, and a second-stage elevator is fixedly arranged on the first-stage lifting seat. The axial output driving gear of the second-stage elevator is

[0013] The side wall of the first-stage lifting seat is fixedly connected with a sliding seat assembly.

[0014] A secondary lifting frame is arranged on the side of the primary lifting seat, and a vertical slide rail assembly is arranged on the secondary lifting frame.

[0015] The slide seat assembly and the slide rail assembly are connected in a sliding manner.

[0016] A vertical rack is fixedly connected to the secondary lifting frame, and the rack is parallel to the slide rail of the slide rail assembly;

[0017] The driving gear output by the secondary elevator is meshed with the rack;

[0018] The lifting push rod of the first-stage lift pushes and pulls the first-stage lift seat, so that the first-stage lift seat realizes the first-stage lifting action; the second-stage lift drives the active gear to rotate forward and reverse, so that the rack moves up and down relative to the active gear, and the rack drives the entire second-stage lift frame to realize the second-stage lifting action through the sliding cooperation of the slide seat assembly and the slide rail assembly;

[0019] A centering support assembly is provided at the top of the secondary lifting frame;

[0020] The centering support assembly is provided with a horizontally arranged center turntable, and a horizontal centering support disk is coaxially arranged on the axis of the center turntable. The centering support disk is coaxially driven on the center turntable.

[0021] Both ends of the centering support plate in the length direction are respectively provided with vertical pipe edge rolling rollers; the roller shafts of the two pipe edge rolling rollers are fixedly connected to the centering support plate; the roller body of each pipe edge rolling roller can rotate freely relative to the roller shaft on which it is located;

[0022] A horizontal rolling roller is arranged on one side of the centering support plate between the two pipe edge rolling rollers; the roller shaft of the horizontal rolling roller is fixedly connected to the side of the centering support plate where it is located, and the roller body of the horizontal rolling roller is free to rotate relative to its roller shaft;

[0023] The two pipe edge rolling rollers are respectively perpendicular to the horizontal rolling roller;

[0024] The height of the upper roller edge of the horizontal rolling roller is higher than the upper surface of the centering support disk.

[0025] A vertically arranged optical axis guide column group is fixedly connected to the bottom of the first-level lifting seat, and each optical axis guide column of the optical axis guide column group is parallel to each other. Each optical axis guide column of the optical axis guide column group extends downward and is connected to the guide seat hole on the fixed base. Each optical axis guide column passes through the guide seat hole and extends below the fixed base. The length of each optical axis guide column is greater than the length of the lifting stroke of the lifting push rod of the first-level elevator.

[0026] The lifting stroke of the lifting push rod of the first-stage lift and the sliding lifting stroke of the sliding seat assembly and the sliding rail assembly of the second-stage lift are parallel to each other, and both are arranged in the vertical direction.

[0027] The first-stage lift uses a self-locking electric cylinder, pneumatic cylinder or hydraulic cylinder that works in forward and reverse directions;

[0028] The secondary elevator adopts a self-locking forward and reverse working motor, and the motor output shaft is coaxially fixedly connected to the driving gear.

[0029] The top of the secondary lifting frame is fixedly connected with a rotary cylinder fixing plate, the rotary cylinder fixing plate is fixedly connected with a rotary cylinder, the rotary cylinder drives the central turntable, and the central turntable drives the centering support plate.

[0030] The rotary cylinder is equipped with an angle sensor.

[0031] The secondary lifting frame is fixedly connected with a secondary lifting plate, and the secondary lifting plate is fixedly connected to the slide rail assembly.

[0032] The secondary elevator drives the reducer, and the reducer drives the connecting driving gear.

[0033] The projection of the midpoint of the horizontal line between the two pipe edge rolling rollers on the central turntable falls on the rotation axis of the central turntable.

[0034] The two pipe edge rolling rollers have the same size, shape and specifications.

[0035] The wire end section of the frame is equipped with a wire end follow-up unloading mechanism.

[0036] The follow-up unloading mechanism at the end of the pipe cutting production line includes an upstream fixed seat and a downstream fixed seat.

[0037] An upstream fixed slider is fixedly connected to the upstream end surface of the upstream fixed seat;

[0038] An upstream shaft seat is arranged on the seat body of the upstream fixed seat;

[0039] A downstream fixed slider is fixedly connected to the downstream end surface of the downstream fixed seat;

[0040] A downstream shaft seat is arranged on the seat body of the downstream fixed seat;

[0041] An upstream guide rail and an upstream rack are fixedly connected to the inner plate surface of the upstream follow-up lifting plate. The upstream guide rail and the upstream rack are parallel to each other and vertically arranged. The upstream guide rail and the upstream fixed slider are slidably matched.

[0042] A downstream guide rail and a downstream rack are fixedly connected to the inner side plate surface of the downstream follower lifting plate. The downstream guide rail and the downstream rack are parallel to each other and vertically arranged. The downstream guide rail and the downstream fixed slider are slidably matched.

[0043] A transmission shaft is connected between the upstream shaft seat and the downstream shaft seat, and the transmission shaft is arranged horizontally;

[0044] The upstream end of the transmission shaft is coaxially fixedly connected with an upstream gear, and the downstream end of the transmission shaft is coaxially fixedly connected with a downstream gear;

[0045] The upstream gear and the upstream rack are meshed;

[0046] The downstream gear is meshed with the downstream rack;

[0047] A follower motor seat is fixedly connected to the upstream end surface of the upstream fixed seat, a follower motor is fixedly arranged on the follower motor seat, the follower motor shaft outputs a driving gear, and the driving gear meshes with the upstream gear;

[0048] The follower motor drives the driving gear to rotate, driving the transmission shaft to rotate. When the transmission shaft rotates, the upstream gear and the downstream gear rotate synchronously at the same time, thereby synchronously driving the upstream rack and the downstream rack to move, driving the upstream follower lifting plate and the downstream follower lifting plate to move up and down.

[0049] The front edge of the outer plate surface of the upstream follower lifting plate is fixedly connected with an upstream cylinder hinge seat, the upstream cylinder is hinged on the upstream cylinder hinge seat, and the upstream cylinder is vertically arranged;

[0050] The front edge of the outer plate surface of the downstream follower lifting plate is fixedly connected with a downstream cylinder hinge seat, and the downstream cylinder is hinged on the downstream cylinder hinge seat, and the downstream cylinder is vertically arranged;

[0051] The top of the upstream push-pull rod of the upstream cylinder, the top of the downstream push-pull rod of the downstream cylinder, the top of the rear edge of the upstream follow-up lifting plate, and the top of the rear edge of the downstream follow-up lifting plate are respectively provided with a bottom hinge seat of the unloading support plate;

[0052] The hinged rotation direction of the bottom hinge seat of the unloading support plate at four locations is consistent with the hinged rotation direction of the upstream cylinder hinge seat and the downstream cylinder hinge seat;

[0053] The bottom hinge seats of the unloading support plate at four locations are connected together to the bottom surface of the unloading support plate;

[0054] The upstream end of the unloading support plate extends in the upstream direction, and a lifting plate hinge seat is arranged on the bottom surface of the unloading support plate of the extension part, and a lifting cylinder is hinged on the lifting plate hinge seat, and the lifting push-pull rod of the lifting cylinder faces the upstream direction.

[0055] The upstream end of the lifting and oblique push-pull rod is hinged on an optical axis, and the two ends of the optical axis are respectively hinged on the short side reaming holes of two right-angle hinge seats.

[0056] The long side reaming holes of the two right-angle hinge seats are hinged together at the downstream frame of the rising and inclined plate;

[0057] A concave platform is provided at the downstream side of the ascending inclined plate.

[0058] The upstream end of the unloading support plate is provided with a notch for matching with the ascending inclined plate;

[0059] The lifting plate is fitted into the matching notch of the lifting plate of the unloading support plate, and the plate surface of the lifting plate is sunken relative to the plate surface of the unloading support plate;

[0060] The concave platform and the lifting and inclined plate of the unloading support plate are matched with the blind ends of the notches to be fastened.

[0061] The plate surface of the upstream follow-up lifting plate is parallel to the upstream end surface of the upstream fixed seat;

[0062] The plate surface of the downstream follow-up lifting plate is parallel to the downstream end surface of the downstream fixed seat.

[0063] The upstream cylinder and the downstream cylinder are arranged in parallel.

[0064] The concave platform is inserted into the bottom surface of the matching notch of the rising and inclined plate.

[0065] The follower motor is powered and driven by the power unit.

[0066] The upstream cylinder, the downstream cylinder and the lifting and tilting cylinder are powered and driven by the electric unit.

[0067] The unloading support plate adopts a rectangular unloading support plate, and the length span direction of the rectangle is consistent with the span direction between the upstream fixing seat and the downstream fixing seat.

[0068] The lifting inclined plate adopts a rectangular lifting inclined plate, and the width span of the rectangular lifting inclined plate is smaller than the width span of the rectangular unloading support plate.

[0069] The lifting inclined plate is arranged at the upstream end of the unloading supporting plate.

[0070] The mating surfaces of the hinge seats at the bottom of the unloading support plate and the hinged connection of the unloading support plate are all arranged on the same plane. At the upper vertex position of the unloading support plate flipped along the hinge seats at the bottom of the unloading support plate, the plate surface of the unloading support plate is flush with the horizontal plane.

[0071] A wire end clamping mechanism is provided on the frame at the wire end;

[0072] The end-of-line clamping mechanism of the pipe cutting production line includes an end-of-line frame cantilever and a clamping box.

[0073] The cantilever of the end-of-line rack is fixedly connected with a cantilever fixing seat.

[0074] The cantilever fixed seat is equipped with a clamping mechanism lifter.

[0075] The clamping mechanism lifter is fixedly arranged above the cantilever fixing seat, the lifting rod of the clamping mechanism lifter passes downward through the cantilever fixing seat, and the lower end of the lifting rod is fixedly connected to the top box wall of the clamping box body;

[0076] A clamping actuator is arranged in the clamping box;

[0077] An intermediate fixing plate is fixedly connected between the front box wall and the rear box wall of the clamping box, and the intermediate fixing plate divides the inner cavity of the clamping box into an upper cavity and a lower cavity;

[0078] The tops of the front box wall and the rear box wall of the clamping box are respectively provided with corresponding front wall upper slot holes and rear wall upper slot holes, and the upper linkage plate is arranged on the top of the inner cavity of the clamping box, and the front edge and the rear edge of the upper linkage plate are respectively extended out of the front wall upper slot holes and the rear wall upper slot holes,

[0079] The front edge of the protruding part of the upper linkage plate is fixedly connected with an upper front gripper which is arranged in a downward direction.

[0080] The rear edge of the protruding portion of the upper linkage plate is fixedly connected with an upper rear gripper arranged in a downward direction;

[0081] The upper surface of the middle fixed plate is fixedly provided with an upper front guide rail and an upper rear guide rail which are parallel to each other.

[0082] A lower front guide rail and a lower rear guide rail parallel to each other are fixedly arranged on the lower surface of the middle fixed plate;

[0083] The upper surface of the middle fixed plate is fixedly connected with a front telescopic push-pull cylinder and a rear telescopic push-pull cylinder parallel to the upper front guide rail.

[0084] The piston rods of the front telescopic push-pull cylinder and the rear telescopic push-pull cylinder are respectively fixedly connected to the upper linkage plate in the same direction;

[0085] The lower surface of the upper linkage plate is fixedly connected with an upper front slider and an upper rear slider.

[0086] The upper front slide block and the upper front guide rail are slidably matched;

[0087] The upper rear slider and the upper rear guide rail are slidably matched;

[0088] The upper linkage plate is fixedly connected with an upper rack, and the direction of the upper rack is parallel to the front telescopic push-pull cylinder;

[0089] A double gear shaft is arranged at the center of the middle fixed plate and passes through the middle fixed plate, and the double gear shaft is arranged vertically;

[0090] The upper rack is meshed with the upper gear of the duplex gear shaft;

[0091] A lower linkage plate is arranged at the bottom of the lower cavity of the clamping box, and corresponding bottom wall front slot holes and bottom wall rear slot holes are respectively opened on the bottom box wall of the clamping box below the front edge and the rear edge of the lower linkage plate;

[0092] The front edge of the lower linkage plate is fixedly connected with a lower front gripper which is arranged in a downward direction; the lower front gripper passes downward through the front slot hole of the bottom wall;

[0093] The rear edge of the lower linkage plate is fixedly connected with a lower rear gripper which is arranged in a downward direction; the lower rear gripper passes downward through the rear slot hole of the bottom wall;

[0094] The lower linkage plate is fixedly connected with a lower rack;

[0095] The lower gear of the double gear shaft is meshed with the lower rack;

[0096] The upper surface of the lower linkage plate is fixedly connected with a lower front slider and a lower rear slider.

[0097] The lower front slide block and the lower front guide rail of the middle fixed plate are slidably matched;

[0098] The lower rear sliding block is slidably matched with the lower rear guide rail of the middle fixed plate.

[0099] The clamping mechanism lifter, the front telescopic push-pull cylinder, and the rear telescopic push-pull cylinder may adopt any of a self-locking forward and reverse working electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0100] The top surface of the clamping box is fixedly connected with an optical axis guide column group, and each optical axis guide column in the optical axis guide column group, which is parallel to each other, passes through the guide hole of the guide column seat on the cantilever fixing seat from bottom to top;

[0101] The length of each optical axis guide column is greater than the length of the lifting stroke of the lifting rod of the clamping mechanism lifter.

[0102] The upper front gripper and the upper rear gripper are of the same size and shape, and are respectively provided with bending portions in the same direction;

[0103] The lower front gripper and the lower rear gripper are of the same size and shape, and are respectively provided with bending portions in the same direction;

[0104] A pipe grabbing space is formed between the bending parts of the upper front gripper and the upper rear gripper and the bending parts of the lower front gripper and the lower rear gripper.

[0105] The slotted hole on the front wall and the slotted hole on the rear wall are parallel to each other;

[0106] The upper front rail and the lower front rail are parallel to each other;

[0107] The front slot hole of the bottom wall and the rear slot hole of the bottom wall are parallel to each other;

[0108] The upper rack and the lower rack are parallel to each other;

[0109] The upper linkage plate and the lower linkage plate are parallel to each other;

[0110] The double gear shaft is perpendicular to the middle fixed plate, and the middle fixed plate is parallel to the upper linkage plate and the lower linkage plate respectively.

[0111] The guide hole of the guide column seat is provided with a linear straightening bearing for the optical axis guide column to slide and retract freely.

[0112] Compared with the prior art, the present invention has the following beneficial effects:

[0113] Before loading, the front and middle clamps of the pipe cutting production line with multiple chucks and zero tail material loading and unloading of the present invention move to the front of the gantry, and the rear clamp moves to the end;

[0114] After the pipe is loaded, the lifting follow-up centering support completes the centering of the pipe and the centering of the pipe and the chuck;

[0115] The rear clamp moves forward, clamps the pipe and continues to move, so that the front section of the pipe approaches the gantry, and the rear clamp stops. During the process, the lifting and following centering support close to the rear clamp descends.

[0116] The middle clamp moves back to the middle position of the pipe, and the front clamp moves back to clamp the pipe, leaving the front section of the pipe with a processing size. The front clamp stops moving back, and the lifting and following centering support of the front clamp close to the middle clamp descends during the process.

[0117] Cutting begins after all the lifting and following centering supports are lowered. When cutting begins, the following unloading device rises to complete the following cutting and unloading of the pipe.

[0118] The final tailing is cut, the follow-up unloading device descends, and the front and middle clamps move forward;

[0119] After the cutting is completed, the rear clamp moves to the end, the clamping device descends to clamp the tail pipe, the middle clamp and the front clamp move backward so that the ends of the pipe are all exposed outside the chuck, the clamping device rises to make the pipe rise, and at the same time the follow-up unloading device rises at an angle, the clamping device releases the gripper, and the pipe rolls down along the angle of the follow-up unloading device to complete the unloading.

[0120] The lifting and following centering support mechanism of the pipe cutting production line of the present invention can match pipes of various specifications and diameters, without stopping to replace parts or stopping for correction, and is easy to inspect and maintain. It can effectively cooperate with the operation during the pipe cutting process, has a low failure rate, and effectively ensures the smooth operation of the production line.

[0121] The lifting and lowering follow-up and centering of the present invention are accurate, and the changes of the follow-up pipe movement in the pipe cutting process are effectively and reasonably coordinated.

[0122] The pipe is clamped and fixed by the front chuck, the middle chuck and the rear chuck on the pipe cutting production line. The pipe is arranged horizontally, and the pipe wall of the pipe lies horizontally on the centering support plate.

[0123] In the entire pipe cutting production line, the rotation axis of the center turntable is set directly below the center axis of the pipe. When the center turntable rotates, the distance between the two pipe edge rolling rollers and the center axis of the pipe changes, and the two pipe edge rolling rollers rotate until the roller edges of the two pipe edge rolling rollers are close to the pipe wall, that is, the pipe is adjusted horizontally; in addition, the first-level lifting and second-level lifting act alone or in combination to make the pipe on the centering support plate rise or fall, so as to obtain the centering adjustment in the vertical direction.

[0124] The horizontal centering adjustment and the height centering adjustment work together to obtain a centered pipe, which is beneficial for the pipe to remain centered on the pipe cutting production line and facilitate cutting.

[0125] The rotation of the two pipe edge rolling rollers can adapt to pipes of different diameters. The two pipe edge rolling rollers are rotated relative to the central axis of the pipe to clamp pipes of different diameters. There is no need to replace the clamps, and one thing can be used for multiple purposes. Moreover, the two pipe edge rolling rollers will not hinder the axial movement of the pipe during the centering clamping process. The roller bodies of the two pipe edge rolling rollers can form a gapless rolling with the pipe wall, which is beneficial to the axial movement of the pipe under the action of the chuck and will not lock the pipe.

[0126] The follow-up unloading mechanism at the end of the pipe cutting production line of the present invention utilizes the upstream follow-up lifting plate and the downstream follow-up lifting plate to synchronously drive the unloading support plate to lift and lower, and the upstream cylinder and the downstream cylinder on the upstream follow-up lifting plate and the downstream follow-up lifting plate synchronously drive the unloading support plate to flip and tilt for unloading; it is beneficial to make the unloading support plate match the height of the pipe. On the other hand, the inclined unloading is beneficial to make the pipe directly tilt downward and roll autonomously for unloading after being cut from the cutting production line, which is convenient, fast and easy to control.

[0127] The lifting plate is arranged at the upstream end of the unloading support plate. The lifting plate is controlled independently by the lifting cylinder on the bottom of the unloading support plate. The lifting plate can be independently moved when the unloading support plate is stationary or flipped. The lifting plate is lifted by the lifting cylinder to obtain the elevation flip of the lifting plate. The elevation lifting of the lifting plate can sense the distance between the unloading support plate and the lower edge of the cut pipe, and assist in calculating and controlling the lifting stroke of the upstream cylinder and the downstream cylinder, so that the unloading support plate is lifted to fit the lower edge of the cut pipe, which helps to stabilize the cut pipe and facilitates the unloading support plate to tilt and unload the cut pipe.

[0128] The end clamping mechanism of the pipe cutting production line of the present invention utilizes the upper linkage plate to simultaneously drive the upper front gripper and the upper rear gripper to move synchronously toward the center; utilizes the lower linkage plate to simultaneously drive the lower front gripper and the lower rear gripper to move synchronously toward the center; and drives the upper rack and the lower rack through the meshing of the upper gear and the lower gear of the double gear shaft to drive the upper linkage plate and the lower linkage plate to slide in a composite action in relative or opposite directions, so as to realize the upper front gripper, the upper rear gripper, the lower front gripper and the lower rear gripper to move closer to the central pipe grabbing space, thereby effectively grabbing the pipe at the center.

[0129] The compound action of the invention is quick and effective, the movement is accurate, and the electrified precise control is convenient.

[0130] The multi-chuck zero-tail material loading and unloading pipe cutting production line of the present invention has reasonable design, simple structure, safety and reliability, convenient use, and easy maintenance, and has good promotion and use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0131] Attached Figure 1 It is a schematic diagram of the main structure of the general assembly of the present invention;

[0132] Attached Figure 2 It is a schematic diagram of the left side structure of the general assembly of the present invention;

[0133] Attached Figure 3 It is a schematic diagram of the general assembly structure from the right side of the present invention;

[0134] Attached Figure 4 It is a schematic diagram of the general assembly top view structure of the present invention;

[0135] Attached Figure 5 It is a schematic diagram of the three-dimensional structure of the general assembly of the present invention;

[0136] Attached Figure 6 It is a schematic diagram of the three-dimensional structure of the general assembly of the present invention;

[0137] Attached Figure 7 It is a schematic diagram of the three-dimensional structure of the general assembly of the present invention;

[0138] Attached Figure 8 It is a schematic diagram of the three-dimensional structure of the general assembly of the present invention;

[0139] Attached Fig. 9 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0140] Attached Fig.10 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0141] Attached Figures 1 to 10 The symbols in represent:

[0142] 1. Rack, 2. Track,

[0143] 3. Front chuck, 4. Middle chuck, 5. Rear chuck, 6. Cutting gantry, 7. Cutting mechanism,

[0144] 8. Lifting and following centering support mechanism,

[0145] 9. End-of-line follow-up unloading mechanism,

[0146] 10. Wire end clamping mechanism,

[0147] 11. Navigation frame, 12. Traveling mechanism;

[0148] Attached Fig.11 It is a schematic diagram of a partial three-dimensional structure of the lifting follow-up centering support mechanism of the present invention;

[0149] Attached Fig.12 It is a schematic diagram of a partial three-dimensional structure of the lifting follow-up centering support mechanism of the present invention;

[0150] Attached Fig.13 It is a schematic diagram of a partial three-dimensional structure of the lifting follow-up centering support mechanism of the present invention;

[0151] Attached Fig.14 It is a schematic diagram of a partial three-dimensional structure of the lifting follow-up centering support mechanism of the present invention;

[0152] Attached Fig.15 It is a schematic diagram of the three-dimensional structure of the lifting follow-up centering support mechanism of the present invention;

[0153] Attached Fig.16 This is a schematic diagram of the main structure of the lifting and following centering support mechanism of the present invention;

[0154] Attached Fig.17 It is a rear view structural schematic diagram of the lifting follow-up centering support mechanism of the present invention;

[0155] Attached Fig.18 It is a left-side structural schematic diagram of the lifting and lowering follow-up centering support mechanism of the present invention;

[0156] Attached Fig.19 It is a right view structural schematic diagram of the lifting follow-up centering support mechanism of the present invention;

[0157] Attached Fig. 20 It is a schematic diagram of the top view of the structure of the lifting follow-up centering support mechanism of the present invention;

[0158] Attached Fig.21 It is a bottom view structural schematic diagram of the lifting follow-up centering support mechanism of the present invention;

[0159] Attached Figures 11 to 21 The symbols in represent:

[0160] a1, fixed base, a2, first-level lift, a3, lift push rod, a4, first-level lift seat,

[0161] a5, secondary elevator, a6, driving gear,

[0162] a7, slide assembly,

[0163] a8, secondary lifting frame, a9, slide rail assembly,

[0164] a10, rack,

[0165] a11, centering support assembly,

[0166] a12, center turntable, a13, centering support plate, a14, pipe edge rolling roller, a15, horizontal rolling roller,

[0167] a16, optical axis guide column assembly,

[0168] a17, rotary cylinder fixing plate, a18, rotary cylinder, a19, angle sensor,

[0169] a20, secondary lifting plate,

[0170] a21, reducer;

[0171] Attached Fig. 22 This is a schematic diagram of the main structure of the end-of-line follower unloading mechanism of the present invention;

[0172] Attached Fig.23 It is a left-side structural schematic diagram of the line end follow-up unloading mechanism of the present invention;

[0173] Attached Fig.24It is a structural schematic diagram of the unloading support plate of the line end follower unloading mechanism of the present invention in the flip unloading state when viewed from the left;

[0174] Attached Fig.25 It is a right side structural schematic diagram of the line end follow-up unloading mechanism of the present invention;

[0175] Attached Fig.26 It is a rear view structural schematic diagram of the line end follower unloading mechanism of the present invention;

[0176] Attached Fig. 27 It is a schematic diagram of the top view of the structure of the line end follower unloading mechanism of the present invention;

[0177] Attached Fig.28 It is a bottom view structural schematic diagram of the line end follower unloading mechanism of the present invention;

[0178] Attached Fig.29 It is a structural schematic diagram of a line end follow-up unloading mechanism according to the present invention, showing a perspective unloading support plate;

[0179] Attached Fig.30 It is a structural schematic diagram of a line end follow-up unloading mechanism according to the present invention, showing a perspective unloading support plate;

[0180] Attached Fig.31 It is a structural schematic diagram of a line end follow-up unloading mechanism according to the present invention, showing a perspective unloading support plate;

[0181] Attached Fig.32 It is a structural schematic diagram of the end-of-line follow-up unloading mechanism of the present invention hiding the unloading support plate;

[0182] Attached Fig.33 It is a three-dimensional structural schematic diagram of the line end follower unloading mechanism of the present invention;

[0183] Attached Figures 22 to 33 The symbols in represent:

[0184] b1, upstream fixed seat, b2, downstream fixed seat,

[0185] b3, upstream end face, b4, upstream fixed slider, b5, upstream shaft seat,

[0186] b6, downstream end face, b7, downstream fixed slider, b8, downstream shaft seat,

[0187] b9, upstream follow-up lifting plate, b10, upstream guide rail, b11, upstream rack,

[0188] b12, downstream follow-up lifting plate, b13, downstream guide rail, b14, downstream rack,

[0189] b15, transmission shaft,

[0190] b16, upstream gear, b17, downstream gear,

[0191] b18, follow-up motor seat, b19, follow-up motor, b20, driving gear,

[0192] b21, upstream cylinder hinge seat, b22, upstream cylinder,

[0193] b23, downstream cylinder hinge seat, b24, downstream cylinder,

[0194] b25, hinge seat at the bottom of the unloading support plate,

[0195] b26, unloading support plate,

[0196] b27, extension part, b28, lifting plate hinge seat, b29, lifting cylinder, b30, lifting push-pull rod,

[0197] b31, optical axis, b32, right angle hinge seat, b33, short side reaming hole, b34, long side reaming hole,

[0198] b35, rising inclined plate, b36, downstream frame, b37, concave platform,

[0199] b38, rising and falling plate matching notch, b39, blind end;

[0200] Attached Fig.34 It is a schematic diagram of the overall assembly structure of the wire end clamping mechanism of the present invention;

[0201] Attached Fig.35 It is a schematic diagram of the structure of the wire end clamping mechanism of the present invention hiding the outer wall of the clamping box;

[0202] Attached Fig.36 It is a structural schematic diagram of the wire end clamping mechanism of the present invention clamping the box body to hide the top box wall;

[0203] Attached Fig.37 It is a schematic diagram of the main structure of Figure c3 of the present invention;

[0204] Attached Fig.38 It is a right view structural schematic diagram of the appended drawing c4 of the present invention;

[0205] Attached Fig.39 It is a schematic diagram of the top view of the structure of Figure c4 of the present invention;

[0206] Attached Fig.40 It is a structural schematic diagram of the wire end clamping mechanism of the present invention after clamping the box body to hide the top box wall and the upper linkage plate;

[0207] Attached Fig.41 It is a three-dimensional structural schematic diagram of the clamping box of the wire end clamping mechanism of the present invention;

[0208] Attached Fig.42Attachment c8 of the present invention is a schematic structural diagram of a hidden top box wall;

[0209] Attached Fig.43 Attachment c9 of the present invention is a structural schematic diagram of a hidden upper linkage plate;

[0210] Attached Fig.44 It is a schematic diagram of the three-dimensional structure of the clamping box of the present invention after the upper linkage plate and the middle fixing plate are hidden;

[0211] Attached Fig.45 It is a schematic diagram of the three-dimensional structure of the present invention at a rotation angle of c11;

[0212] Attached Fig.46 It is a schematic diagram of the three-dimensional structure of the attached drawing c11 of the present invention at a rotation angle.

[0213] Attached Figures 34 to 46 The symbols in represent:

[0214] c1, cantilever of the end-of-line frame, c2, cantilever fixing seat, c3, clamping mechanism lifter, c4, lifting rod,

[0215] c5. Clamp the box.

[0216] c6, top box wall,

[0217] c7, clamping actuator,

[0218] c8, front box wall, c9, rear box wall, c10, middle fixed plate, c11, upper cavity, c12, lower cavity,

[0219] c13, slotted hole on the front wall, c14, slotted hole on the rear wall, c15, upper linkage plate,

[0220] c16, upper front gripper, c17, upper rear gripper,

[0221] c18, upper front guide rail, c19, upper rear guide rail,

[0222] c20, lower front guide rail, c21, lower rear guide rail,

[0223] c22, front telescopic push-pull cylinder, c23, rear telescopic push-pull cylinder, c24, piston rod,

[0224] c25, upper front slider, c26, upper rear slider,

[0225] c27, upper rack, c28, double gear shaft, c29, upper gear, c30, lower gear,

[0226] c31, lower linkage plate, c32, bottom box wall, c33, front slot hole of bottom wall, c34, rear slot hole of bottom wall,

[0227] c35, lower rack,

[0228] c36, lower front slider, 37, lower rear slider,

[0229] c38, optical axis guide column assembly, c39, optical axis guide column, c40, guide column seat, c41, guide hole,

[0230] c42, bending part, c43, pipe grabbing space,

[0231] c44, lower front gripper, c45, lower rear gripper. DETAILED DESCRIPTION

[0232] The following is a detailed description of the multi-chuck zero-tail material loading and unloading pipe cutting production line of the present invention in conjunction with the accompanying drawings.

[0233] As shown in the accompanying drawings, the multi-chuck zero-tail material loading and unloading pipe cutting production line of the present invention includes a frame, on which are provided parallel rails arranged along the length direction of the frame, on which are provided at least a front chuck, a middle chuck and a rear chuck, and a cutting gantry, on which are provided a cutting mechanism; the frame is provided with a lifting and following centering support mechanism, a line end following unloading mechanism and a line end clamping mechanism.

[0234] As attached Figures 11 to 21 As shown:

[0235] The lifting and following centering support mechanism of the pipe cutting production line of the present invention comprises a fixed base, a first-level lifting seat and a second-level lifting frame.

[0236] A first-stage lift a2 is fixedly connected to the bottom of the fixed base a1, and a lifting push rod a3 of the first-stage lift a2 passes through the fixed base a1 upward from the bottom of the fixed base. A first-stage lift seat a4 is fixedly connected to the top of the lifting push rod a3, and a second-stage lift a5 is fixedly arranged horizontally on the first-stage lift seat a4. The axial output driving gear a6 of the second-stage lift a5 is provided.

[0237] The side wall of the first-stage lifting seat a4 is fixedly connected with a sliding seat assembly a7.

[0238] A secondary lifting frame a8 is arranged on the side of the primary lifting seat a4, and a vertical slide rail assembly a9 is arranged on the secondary lifting frame a8.

[0239] The slide assembly a7 and the slide rail assembly a9 are connected in a sliding manner.

[0240] A rack a10 in a vertical direction is fixedly connected to the secondary lifting frame a8, and the rack a10 is parallel to the slide rail of the slide rail assembly;

[0241] The driving gear a6 output by the secondary elevator a5 meshes with the rack a10;

[0242] The lifting push rod a3 of the first-level lift a2 pushes and pulls the first-level lift seat a4, so that the first-level lift seat realizes the first-level lifting action; the second-level lift a5 drives the active gear to rotate forward and reverse, so that the rack moves up and down relative to the active gear, and the rack drives the entire second-level lift frame 8 to realize the second-level lifting action through the sliding cooperation of the slide seat assembly and the slide rail assembly;

[0243] A centering support assembly a11 is provided at the top of the secondary lifting frame a8;

[0244] The centering support assembly a11 is provided with a horizontally arranged center turntable a12, and a horizontal centering support disk a13 is coaxially arranged on the axial direction of the center turntable a12. The centering support disk a13 is coaxially driven on the center turntable a13.

[0245] Both ends of the centering support plate a13 in the length direction are respectively provided with vertical pipe edge rolling rollers a14; the roller shafts of the two pipe edge rolling rollers are fixedly connected to the centering support plate; the roller body of each pipe edge rolling roller can rotate freely relative to the roller shaft on which it is located;

[0246] A horizontal rolling roller a15 is arranged on one side of the centering support plate a13 between the two pipe edge rolling rollers; the roller shaft of the horizontal rolling roller a15 is fixedly connected to the side of the centering support plate where it is located, and the roller body of the horizontal rolling roller can rotate freely relative to its roller shaft;

[0247] The two pipe edge rolling rollers are respectively perpendicular to the horizontal rolling roller;

[0248] The height of the upper roller edge of the horizontal rolling roller a15 is higher than the upper surface of the centering support plate.

[0249] A vertically arranged optical axis guide column group a16 is fixedly connected to the bottom of the first-level lifting seat, and each optical axis guide column of the optical axis guide column group is parallel to each other. Each optical axis guide column of the optical axis guide column group extends downward and is connected to the guide seat hole on the fixed base. Each optical axis guide column passes through the guide seat hole and extends below the fixed base. The length of each optical axis guide column is greater than the length of the lifting stroke of the lifting push rod of the first-level elevator.

[0250] The lifting stroke of the lifting push rod of the first-stage lift and the sliding lifting stroke of the sliding seat assembly and the sliding rail assembly of the second-stage lift are parallel to each other, and both are arranged in the vertical direction.

[0251] The first-stage lift uses a self-locking electric cylinder, pneumatic cylinder or hydraulic cylinder that works in forward and reverse directions;

[0252] The secondary elevator adopts a self-locking forward and reverse working motor, and the motor output shaft is coaxially fixedly connected to the driving gear.

[0253] The top of the secondary lifting frame a8 is fixedly connected with a rotary cylinder fixing plate a17, and the rotary cylinder fixing plate a17 is fixedly connected with a rotary cylinder a18. The rotary cylinder drives a18 to connect to the center turntable a12, and the center turntable a12 drives the centering support plate a13.

[0254] The rotary cylinder is equipped with an angle sensor a19.

[0255] A secondary lifting plate a20 is fixedly connected to the secondary lifting frame, and the secondary lifting plate is fixedly connected to the slide rail assembly a9.

[0256] The secondary elevator 5 drives the reducer a21, and the reducer a21 drives the driving gear a6.

[0257] As attached Figures 22 to 33 As shown:

[0258] The end-of-line follow-up unloading mechanism of the pipe cutting production line of the present invention comprises an upstream fixed seat b1 and a downstream fixed seat b2.

[0259] An upstream fixed slider b4 is fixedly connected to the upstream end surface b3 of the upstream fixed seat b1;

[0260] An upstream shaft seat b5 is arranged on the seat body of the upstream fixed seat b1;

[0261] A downstream fixed slider b7 is fixedly connected to the downstream end surface b6 of the downstream fixed seat b2;

[0262] A downstream shaft seat b8 is arranged on the seat body of the downstream fixed seat b2;

[0263] An upstream guide rail b10 and an upstream rack b11 are fixedly connected to the inner side plate surface of the upstream follow-up lifting plate b9. The upstream guide rail and the upstream rack are parallel to each other and vertically arranged. The upstream guide rail b10 and the upstream fixed slider b4 are slidably matched.

[0264] A downstream guide rail b13 and a downstream rack b14 are fixedly connected to the inner side plate surface of the downstream follow-up lifting plate b12. The downstream guide rail and the downstream rack are parallel to each other and vertically arranged. The downstream guide rail b13 and the downstream fixed slider b7 are slidably matched.

[0265] A transmission shaft b15 is connected between the upstream shaft seat b5 and the downstream shaft seat b8, and the transmission shaft b15 is arranged horizontally;

[0266] The upstream end of the transmission shaft b15 is coaxially fixedly connected with an upstream gear b16, and the downstream end of the transmission shaft is coaxially fixedly connected with a downstream gear b17;

[0267] The upstream gear b16 is meshed with the upstream rack b11;

[0268] The downstream gear b17 is meshed with the downstream rack b14;

[0269] A follower motor seat b18 is fixedly connected to the upstream end surface of the upstream fixed seat b1, and a follower motor b19 is fixedly arranged on the follower motor seat b18. The follower motor shaft outputs a driving gear b20, and the driving gear b20 meshes with the upstream gear b16;

[0270] The follower motor drives the driving gear to rotate, driving the transmission shaft to rotate. When the transmission shaft rotates, the upstream gear and the downstream gear rotate synchronously at the same time, thereby synchronously driving the upstream rack and the downstream rack to move, driving the upstream follower lifting plate and the downstream follower lifting plate to move up and down.

[0271] The front edge of the outer plate surface of the upstream follow-up lifting plate b9 is fixedly connected with an upstream cylinder hinge seat b21, and an upstream cylinder b22 is hinged on the upstream cylinder hinge seat, and the upstream cylinder is vertically arranged;

[0272] The front edge of the outer plate surface of the downstream follow-up lifting plate b10 is fixedly connected with a downstream cylinder hinge seat b23, and a downstream cylinder b24 is hinged on the downstream cylinder hinge seat, and the downstream cylinder is vertically arranged;

[0273] The top of the upstream push-pull rod of the upstream cylinder b22, the top of the downstream push-pull rod of the downstream cylinder b24, the top of the rear edge of the upstream follow-up lifting plate b9, and the top of the rear edge of the downstream follow-up lifting plate b12 are respectively provided with a discharge support plate bottom hinge seat b25;

[0274] The hinged rotation direction of the bottom hinge seat of the unloading support plate at four locations is consistent with the hinged rotation direction of the upstream cylinder hinge seat and the downstream cylinder hinge seat;

[0275] The bottom hinge seats of the four unloading support plates are connected together to the bottom surface of the unloading support plate b26;

[0276] The upstream cylinder 22 and the downstream cylinder 24 synchronously lift or pull down the side of the unloading support plate b26. The other side of the unloading support plate b26 is rotatably hinged through the unloading support plate bottom hinge seat b25 and the top ends of the upstream follow-up lifting plate b9 and the downstream follow-up lifting plate 12. The lifted or pulled down unloading support plate b26 forms a laterally flipped and tilted unloading state. The unloading support plate 26 returns to a horizontal position after unloading.

[0277] The upstream end of the unloading support plate extends in the upstream direction, and the bottom surface of the unloading support plate of the extension part b27 is provided with a lifting plate hinge seat b28, and a lifting cylinder b29 is hinged on the lifting plate hinge seat b28, and the lifting push-pull rod b30 of the lifting cylinder b29 faces the upstream direction.

[0278] The upstream end of the lifting and oblique push-pull rod b30 is vertically hinged on an optical axis b31, and the two ends of the optical axis b31 are respectively hinged on the short side reaming holes b33 of two right-angle hinge seats b32.

[0279] The long side reaming holes b34 of the two right-angle hinge seats are hinged together at the downstream side frame b36 of the ascending inclined plate b35;

[0280] A concave platform b37 is provided at the downstream side of the ascending inclined plate.

[0281] The plate surface at the upstream end of the unloading support plate is provided with a rising inclined plate matching notch b38;

[0282] The lifting plate is fitted into the matching notch of the lifting plate of the unloading support plate, and the plate surface of the lifting plate is sunken relative to the plate surface of the unloading support plate;

[0283] The concave platform and the lifting and inclined plate of the unloading support plate are matched and buckled with the blind end b39 of the notch.

[0284] The plate surface of the upstream follow-up lifting plate is parallel to the upstream end surface of the upstream fixed seat;

[0285] The plate surface of the downstream follow-up lifting plate is parallel to the downstream end surface of the downstream fixed seat.

[0286] The upstream cylinder and the downstream cylinder are arranged in parallel.

[0287] The concave platform is inserted into the bottom surface of the matching notch of the rising and inclined plate.

[0288] The follower motor is powered and driven by the power unit.

[0289] The upstream cylinder, the downstream cylinder and the lifting and tilting cylinder are powered and driven by the electric unit.

[0290] As attached Figures 34 to 46 As shown:

[0291] The end-of-line clamping mechanism of the pipe cutting production line includes an end-of-line frame cantilever and a clamping box.

[0292] The cantilever c1 of the end-of-line rack is fixedly connected with a cantilever fixing seat c2.

[0293] The cantilever fixed seat c2 is provided with a clamping mechanism lifter c3.

[0294] The clamping mechanism lifter c3 is fixedly arranged above the cantilever fixing seat c2, and the lifting rod c4 of the clamping mechanism lifter c3 passes downward through the cantilever fixing seat c2, and the lower end of the lifting rod c4 is fixedly connected to the top box wall 6 of the clamping box body c5;

[0295] A clamping actuator c7 is arranged in the clamping box c5;

[0296] An intermediate fixing plate c10 is fixedly connected between the front box wall c8 and the rear box wall c9 of the clamping box body c5, and the intermediate fixing plate c10 divides the inner cavity of the clamping box body into an upper cavity c11 and a lower cavity c12;

[0297] The tops of the front box wall 8 and the rear box wall 9 of the clamping box body 5 are respectively provided with corresponding front wall upper slots c13 and rear wall upper slots c14. The upper linkage plate c15 is arranged at the top of the inner cavity of the clamping box body. The front edge and the rear edge of the upper linkage plate c15 are respectively extended out of the front wall upper slots c13 and the rear wall upper slots c14.

[0298] The front edge of the protruding part of the upper linkage plate is fixedly connected with an upper front gripper c16 which is arranged in a downward direction.

[0299] The rear edge of the protruding portion of the upper linkage plate is fixedly connected with an upper rear gripper c17 which is arranged in a downward direction;

[0300] The upper surface of the middle fixed plate is fixedly provided with an upper front guide rail c18 and an upper rear guide rail c19 which are parallel to each other.

[0301] The lower surface of the middle fixed plate is fixedly provided with a lower front guide rail c20 and a lower rear guide rail c21 which are parallel to each other;

[0302] The upper surface of the middle fixed plate c10 is fixedly connected with a front telescopic push-pull cylinder c22 and a rear telescopic push-pull cylinder c23 which are parallel to the upper front guide rail.

[0303] The piston rods c24 of the front telescopic push-pull cylinder c22 and the rear telescopic push-pull cylinder c23 are respectively fixedly connected to the upper linkage plate c15 in the same direction; the piston rods c24 of the front telescopic push-pull cylinder c22 and the rear telescopic push-pull cylinder c23 push and pull the upper linkage plate c15 synchronously;

[0304] The lower surface of the upper linkage plate c15 is fixedly connected with an upper front slider c25 and an upper rear slider c26.

[0305] The upper front slider 25 and the upper front guide rail c18 are slidably matched;

[0306] The upper rear slider 26 and the upper rear guide rail c19 are slidably matched;

[0307] The upper linkage plate 15 is fixedly connected with an upper rack c27, and the direction of the upper rack 27 is parallel to the front telescopic push-pull cylinder;

[0308] A double gear shaft c28 is disposed at the center of the middle fixed plate c10 and passes through the middle fixed plate. The double gear shaft is disposed vertically.

[0309] The upper rack c27 is meshed with the upper gear c29 of the double gear shaft 28;

[0310] A lower linkage plate c31 is provided at the bottom of the lower cavity of the clamping box body c5, and corresponding bottom wall front slots c33 and bottom wall rear slots c34 are respectively provided on the bottom box wall c32 of the clamping box body below the front and rear edges of the lower linkage plate c31;

[0311] The front edge of the lower linkage plate c31 is fixedly connected with a lower front gripper c44 which is arranged in a downward direction; the lower front gripper c44 passes downward through the front slot c33 of the bottom wall;

[0312] The rear edge of the lower linkage plate c31 is fixedly connected with a lower rear gripper c45 which is arranged in a downward direction; the lower rear gripper c45 passes downward through the rear slot c34 of the bottom wall;

[0313] The lower linkage plate c31 is fixedly connected with a lower rack c35;

[0314] The lower gear C30 of the double gear shaft C28 is meshed with the lower rack C35;

[0315] The upper surface of the lower linkage plate c31 is fixedly connected with a lower front slider c36 and a lower rear slider c37.

[0316] The lower front slider c36 and the lower front guide rail c20 of the middle fixed plate are slidably matched;

[0317] The lower rear sliding block c37 is slidably matched with the lower rear guide rail c21 of the middle fixed plate.

[0318] The clamping mechanism lifter c3, the front telescopic push-pull cylinder c22, and the rear telescopic push-pull cylinder c23 are either self-locking electric cylinders, air cylinders, or hydraulic cylinders that work in forward and reverse directions and are driven by an electric unit or a hydraulic unit.

[0319] The top surface of the clamping box c5 is fixedly connected with an optical axis guide column group c38, and each of the optical axis guide columns c39 parallel to each other in the optical axis guide column group passes through the guide hole c41 of the guide column seat c40 on the cantilever fixing seat from bottom to top;

[0320] The length of each optical axis guide column is greater than the length of the lifting stroke of the lifting rod of the clamping mechanism lifter.

[0321] The upper front gripper and the upper rear gripper are of the same size and shape, and are respectively provided with a bending portion c42 in the same direction;

[0322] The lower front gripper and the lower rear gripper are of the same size and shape, and are respectively provided with bending portions in the same direction;

[0323] A pipe grabbing space c43 is formed between the bending parts of the upper front gripper and the upper rear gripper and the bending parts of the lower front gripper and the lower rear gripper.

[0324] The slotted hole on the front wall and the slotted hole on the rear wall are parallel to each other;

[0325] The upper front rail and the lower front rail are parallel to each other;

[0326] The front slot hole of the bottom wall and the rear slot hole of the bottom wall are parallel to each other;

[0327] The upper rack and the lower rack are parallel to each other;

[0328] The upper linkage plate and the lower linkage plate are parallel to each other;

[0329] The double gear shaft is perpendicular to the middle fixed plate, and the middle fixed plate is parallel to the upper linkage plate and the lower linkage plate respectively.

[0330] The guide hole of the guide column seat is provided with a linear straightening bearing for the optical axis guide column to slide and retract freely.

[0331] The lifting follow-up centering support mechanism, the end-of-line follow-up unloading mechanism and the end-of-line clamping mechanism are respectively equipped with independent electric power mechanisms. Each power mechanism is controlled by a centralized controller to execute actions to coordinate the loading, centering, running, cutting and unloading of pipes.

[0332] The multi-chuck zero tail material loading and unloading pipe cutting production line of the present invention:

[0333] Before loading, the front and middle cards move to the front of the gantry, and the rear card moves to the end;

[0334] After the pipe is loaded, the lifting follow-up centering support completes the centering of the pipe and the centering of the pipe and the chuck;

[0335] The rear clamp moves forward, clamps the pipe and continues to move, so that the front section of the pipe approaches the gantry, and the rear clamp stops. During the process, the lifting and following centering support close to the rear clamp descends.

[0336] The middle clamp moves back to the middle position of the pipe, and the front clamp moves back to clamp the pipe, leaving the front section of the pipe with a processing size. The front clamp stops moving back, and the lifting and following centering support of the front clamp close to the middle clamp descends during the process.

[0337] Cutting begins after all the lifting and following centering supports are lowered. When cutting begins, the following unloading device rises to complete the following cutting and unloading of the pipe.

[0338] The final tailing is cut, the follow-up unloading device descends, and the front and middle clamps move forward;

[0339] After the cutting is completed, the rear clamp moves to the end, the clamping device descends to clamp the tail pipe, the middle clamp and the front clamp move backward so that the ends of the pipe are all exposed outside the chuck, the clamping device rises to make the pipe rise, and at the same time the follow-up unloading device rises at an angle, the clamping device releases the gripper, and the pipe rolls down along the angle of the follow-up unloading device to complete the unloading.

Claims

1. A multi-chuck zero-tail material loading and unloading pipe cutting production line, comprising a frame, on which parallel rails arranged along the length direction of the frame are arranged, on which at least a front chuck, a middle chuck and a rear chuck are arranged, and a cutting gantry, on which a cutting mechanism is arranged; characterized in that: The frame is equipped with a lifting and following centering support mechanism composed of a double roller with a horizontally rotating pipe edge that clamps the pipe and has a two-stage lifting action, a line-end following unloading mechanism for radial lateral unloading of the pipe, and a line-end clamping mechanism with four claws that clamp the pipe in double linkage; The loading section of the frame is equipped with a lifting follower centering support mechanism fixing unit, which is arranged below the track and arranged in sequence along the track direction. At least two sets of lifting follower centering support mechanisms are configured in the sequentially arranged lifting follower centering support mechanism fixing units. The center of the lifting follow-up centering support mechanism is set directly below the central axis of the front chuck, the middle chuck and the rear chuck; The lifting and following centering support mechanism includes a fixed base, a first-level lifting seat and a second-level lifting frame. A first-stage elevator is fixedly connected to the bottom of the fixed base, and a lifting push rod of the first-stage elevator passes through the fixed base from the bottom of the fixed base. The top of the lifting push rod is fixedly connected to a first-stage lifting seat, and a second-stage elevator is fixedly arranged on the first-stage lifting seat. The axial output driving gear of the second-stage elevator is The side wall of the first-stage lifting seat is fixedly connected with a sliding seat assembly. A secondary lifting frame is arranged on the side of the primary lifting seat, and a vertical slide rail assembly is arranged on the secondary lifting frame. The slide seat assembly and the slide rail assembly are connected in a sliding manner. A vertical rack is fixedly connected to the secondary lifting frame, and the rack is parallel to the slide rail of the slide rail assembly; The driving gear output by the secondary elevator is meshed with the rack; A centering support assembly is provided at the top of the secondary lifting frame; The centering support assembly is provided with a horizontally arranged center turntable, and a horizontal centering support disk is coaxially arranged on the axis of the center turntable. The centering support disk is coaxially driven on the center turntable. Both ends of the centering support plate in the length direction are respectively provided with vertical pipe edge rolling rollers; the roller shafts of the two pipe edge rolling rollers are fixedly connected to the centering support plate; the roller body of each pipe edge rolling roller can rotate freely relative to the roller shaft on which it is located; A horizontal rolling roller is arranged on one side of the centering support plate between the two pipe edge rolling rollers; the roller shaft of the horizontal rolling roller is fixedly connected to the side of the centering support plate where it is located, and the roller body of the horizontal rolling roller is free to rotate relative to its roller shaft; The two pipe edge rolling rollers are respectively perpendicular to the horizontal rolling roller; The height of the upper roller edge of the horizontal rolling roller is higher than the upper surface of the centering support plate; The center turntable and the centering support plate are arranged directly below the center axes of the front chuck, the middle chuck and the rear chuck; The fixed base of the lifting follow-up centering support mechanism is fixedly connected to the frame.

2. The multi-chuck zero tail material loading and unloading pipe cutting production line according to claim 1 is characterized by: The wire end section of the frame is equipped with a wire end follow-up unloading mechanism. The end-of-line follow-up unloading mechanism includes an upstream fixed seat and a downstream fixed seat. An upstream fixed slider is fixedly connected to the upstream end surface of the upstream fixed seat; An upstream shaft seat is arranged on the seat body of the upstream fixed seat; A downstream fixed slider is fixedly connected to the downstream end surface of the downstream fixed seat; A downstream shaft seat is arranged on the seat body of the downstream fixed seat; An upstream guide rail and an upstream rack are fixedly connected to the inner plate surface of the upstream follow-up lifting plate. The upstream guide rail and the upstream rack are parallel to each other and vertically arranged. The upstream guide rail and the upstream fixed slider are slidably matched. A downstream guide rail and a downstream rack are fixedly connected to the inner side plate surface of the downstream follower lifting plate. The downstream guide rail and the downstream rack are parallel to each other and vertically arranged. The downstream guide rail and the downstream fixed slider are slidably matched. A transmission shaft is connected between the upstream shaft seat and the downstream shaft seat, and the transmission shaft is arranged horizontally; The upstream end of the transmission shaft is coaxially fixedly connected with an upstream gear, and the downstream end of the transmission shaft is coaxially fixedly connected with a downstream gear; The upstream gear and the upstream rack are meshed; The downstream gear is meshed with the downstream rack; A follower motor seat is fixedly connected to the upstream end surface of the upstream fixed seat, a follower motor is fixedly arranged on the follower motor seat, the follower motor shaft outputs a driving gear, and the driving gear meshes with the upstream gear; The front edge of the outer plate surface of the upstream follower lifting plate is fixedly connected with an upstream cylinder hinge seat, the upstream cylinder is hinged on the upstream cylinder hinge seat, and the upstream cylinder is vertically arranged; The front edge of the outer plate surface of the downstream follower lifting plate is fixedly connected with a downstream cylinder hinge seat, and the downstream cylinder is hinged on the downstream cylinder hinge seat, and the downstream cylinder is vertically arranged; The top of the upstream push-pull rod of the upstream cylinder, the top of the downstream push-pull rod of the downstream cylinder, the top of the rear edge of the upstream follow-up lifting plate, and the top of the rear edge of the downstream follow-up lifting plate are respectively provided with a bottom hinge seat of the unloading support plate; The hinged rotation direction of the bottom hinge seat of the unloading support plate at four locations is consistent with the hinged rotation direction of the upstream cylinder hinge seat and the downstream cylinder hinge seat; The bottom hinge seats of the unloading support plate at four locations are connected together to the bottom surface of the unloading support plate; The upstream end of the unloading support plate extends in the upstream direction, and a lifting plate hinge seat is arranged on the bottom surface of the unloading support plate of the extension part, and a lifting cylinder is hinged on the lifting plate hinge seat, and the lifting push-pull rod of the lifting cylinder faces the upstream direction. The upstream end of the lifting and oblique push-pull rod is hinged on an optical axis, and the two ends of the optical axis are respectively hinged on the short side reaming holes of two right-angle hinge seats. The long side reaming holes of the two right-angle hinge seats are hinged together at the downstream frame of the rising and inclined plate; A concave platform is provided at the downstream side of the ascending inclined plate. The upstream end of the unloading support plate is provided with a notch for matching with the ascending inclined plate; The lifting plate is fitted into the matching notch of the lifting plate of the unloading support plate, and the plate surface of the lifting plate is sunken relative to the plate surface of the unloading support plate; The concave platform and the lifting and inclined plate of the unloading support plate are matched with the blind ends of the notches; The upstream fixing seat and the downstream fixing seat are respectively fixedly connected to the frame below the navigation track.

3. The multi-chuck zero tail material loading and unloading pipe cutting production line according to claim 1 is characterized by: A wire end clamping mechanism is provided on the frame at the wire end; The end-of-line clamping mechanism includes an end-of-line frame cantilever and a clamping box. The cantilever of the end-of-line rack is fixedly connected with a cantilever fixing seat. The cantilever fixed seat is equipped with a clamping mechanism lifter. The clamping mechanism lifter is fixedly arranged above the cantilever fixing seat, the lifting rod of the clamping mechanism lifter passes downward through the cantilever fixing seat, and the lower end of the lifting rod is fixedly connected to the top box wall of the clamping box body; A clamping actuator is arranged in the clamping box; An intermediate fixing plate is fixedly connected between the front box wall and the rear box wall of the clamping box, and the intermediate fixing plate divides the inner cavity of the clamping box into an upper cavity and a lower cavity; The tops of the front box wall and the rear box wall of the clamping box are respectively provided with corresponding front wall upper slot holes and rear wall upper slot holes, and the upper linkage plate is arranged on the top of the inner cavity of the clamping box, and the front edge and the rear edge of the upper linkage plate are respectively extended out of the front wall upper slot holes and the rear wall upper slot holes, The front edge of the protruding part of the upper linkage plate is fixedly connected with an upper front gripper which is arranged in a downward direction. The rear edge of the protruding portion of the upper linkage plate is fixedly connected with an upper rear gripper arranged in a downward direction; The upper surface of the middle fixed plate is fixedly provided with an upper front guide rail and an upper rear guide rail which are parallel to each other. A lower front guide rail and a lower rear guide rail parallel to each other are fixedly arranged on the lower surface of the middle fixed plate; The upper surface of the middle fixed plate is fixedly connected with a front telescopic push-pull cylinder and a rear telescopic push-pull cylinder parallel to the upper front guide rail. The piston rods of the front telescopic push-pull cylinder and the rear telescopic push-pull cylinder are respectively fixedly connected to the upper linkage plate in the same direction; The lower surface of the upper linkage plate is fixedly connected with an upper front slider and an upper rear slider. The upper front slide block and the upper front guide rail are slidably matched; The upper rear slider and the upper rear guide rail are slidably matched; The upper linkage plate is fixedly connected with an upper rack, and the direction of the upper rack is parallel to the front telescopic push-pull cylinder; A double gear shaft is arranged at the center of the middle fixed plate and passes through the middle fixed plate, and the double gear shaft is arranged vertically; The upper rack is meshed with the upper gear of the duplex gear shaft; A lower linkage plate is arranged at the bottom of the lower cavity of the clamping box, and corresponding bottom wall front slot holes and bottom wall rear slot holes are respectively opened on the bottom box wall of the clamping box below the front edge and the rear edge of the lower linkage plate; The front edge of the lower linkage plate is fixedly connected with a lower front gripper which is arranged in a downward direction; the lower front gripper passes downward through the front slot hole of the bottom wall; The rear edge of the lower linkage plate is fixedly connected with a lower rear gripper which is arranged in a downward direction; the lower rear gripper passes downward through the rear slot hole of the bottom wall; The lower linkage plate is fixedly connected with a lower rack; The lower gear of the double gear shaft is meshed with the lower rack; The upper surface of the lower linkage plate is fixedly connected with a lower front slider and a lower rear slider. The lower front slide block and the lower front guide rail of the middle fixed plate are slidably matched; The lower rear sliding block and the lower rear guide rail of the middle fixed plate are slidably matched; The end-of-line rack cantilever is vertically fixed to one side of the rack connected to the end of the line.

4. The multi-chuck zero tail material loading and unloading pipe cutting production line according to claim 1 is characterized by: The front chuck, the middle chuck, the rear chuck and the cutting gantry are respectively arranged on the rails through independent rail frames and are slidably connected with the rails.

5. The multi-chuck zero tail material loading and unloading pipe cutting production line according to claim 1 is characterized by: The front chuck, middle chuck, rear chuck and cutting gantry are respectively equipped with independent walking mechanisms for precise reciprocating travel along the track.

6. The multi-chuck zero-tail material loading and unloading pipe cutting production line according to claim 1 is characterized by: The lifting follow-up centering support mechanism, the line end follow-up unloading mechanism and the line end clamping mechanism are respectively equipped with independent electric power mechanisms.

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