CN210305264U - Production line of muffler - Google Patents

Abstract

The utility model relates to a production line of muffler belongs to tubular product processing and handles technical field. The production line comprises a first spinning machine and a second spinning machine which are arranged side by side; the spinning machine comprises a frame, a spinning machine head and a clamping claw, wherein the spinning machine head and the clamping claw are arranged on the frame; an installation space is reserved between the first spinning machine and the second spinning machine, the production line comprises a feeding device used for feeding the first spinning machine and a material moving system arranged between the first spinning machine and the second spinning machine and used for moving the pipe materials clamped on the first material clamping claw to the second material clamping claw. The production line can automatically process a pipe material into the silencer with two ends in a contraction structure, has the advantages of automation degree, capability of saving the manufacturing cost and wide application in the manufacturing fields of refrigeration, automobiles, aviation and the like.

Description

Production line of muffler

Technical Field

The utility model relates to a tubular product processing equipment, specifically speaking relates to an automation line of muffler.

Background

As shown in fig. 12, a conventional pipe type muffler has a pipe structure 010 as a main body, and the pipe structure 010 has a contracting structure 011 formed at one end portion thereof and a contracting structure 012 formed at the other end portion thereof.

In the manufacturing process, a spinning machine is usually used for spinning, and the specific processing process is to cut a long pipe blank into short pipe materials according to the designed length of the silencer, then manually or through a feeding device transfer the short pipe materials to a material clamping head of the spinning machine, after spinning is completed, turn around the pipe materials completing spinning at one end through a turning-around mechanism, push the pipe materials into the spinning machine again, and spin-press the other end to obtain the silencer structure shown in fig. 12.

In the structure of a spinning machine, a spinning process is generally performed by a spinning machine in which a pipe material is rotated by a material clamping claw and a spinning wheel is not rotated, for example, a spinning machine disclosed in patent document CN108856542A filed by the present applicant and published by the present applicant.

In addition, some spinning machines, such as the spinning machine disclosed in the patent application and published by the applicant as CN108080480A, have the spinning head and the tube blank held stationary during spinning by driving the spinning wheel to rotate about the axis of rotation.

In the spinning machine for performing the turning treatment on the pipe material, the time consumption of the turning process is caused, and the production efficiency of the silencer is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a silencer production line with high automation degree and high production efficiency;

another object of the utility model is to provide a muffler production line based on afterbody material loading formula spinning-lathe to can carry out material loading and spin forming to long tube blank, and reduce the waste of tube blank and reduce the processing cost.

In order to achieve the above main objective, the utility model provides a silencer production line, which comprises a first spinning machine and a second spinning machine; the first spinning machine comprises a rack, a first spinning machine head and a first clamping machine head, wherein the first spinning machine head and the first clamping machine head are arranged on the rack and driven by rotary driving equipment to rotate around a first rotating axis relatively, and the first clamping machine head comprises a first clamping claw; the second spinning machine comprises a rack, and a second spinning machine head and a second clamping machine head which are arranged on the rack and driven by the rotary driving equipment to rotate around a second rotary axis relatively, wherein the second clamping machine head comprises a second clamping claw; an installation space is reserved between the first spinning machine and the second spinning machine, the production line comprises a feeding device for feeding the first spinning machine and a material moving system which is arranged between the first spinning machine and the second spinning machine and used for moving the pipe material clamped on the first material clamping claw to the second material clamping claw; the mounting base of the material moving system is positioned in the mounting space.

Through setting up two spinning-lathe, and move the material system and can remove the semi-manufactured goods pipe material after first spinning-lathe spinning to the second spinning-lathe through the setting to another tip to the pipe material carries out the spinning, and acquires both ends and be the muffler that contracts the tip, through the cooperation of two spinning-lathe, reduces the time consumption that the pipe material turned around among the prior art effectively, and improves the production efficiency of muffler.

The specific scheme is that a first spinning machine and a second spinning machine are arranged side by side, and an installation space is positioned between the two spinning machines in a first transverse direction perpendicular to a rotation axis; the first spinning machine head and the second spinning machine head are respectively positioned on one side of the transverse spacing line, and the material clamping claws are both positioned on one side of the spinning machine head facing the transverse spacing line; the laterally spaced lines are arranged along a first lateral direction.

By arranging two spinning machines which are arranged side by side and two spinning machine heads which are positioned at two sides of a transverse spacing line, the pipe material does not need to be turned around in the process of transferring the pipe material.

The material moving system comprises a transverse moving unit; the transverse moving unit comprises a pipe material bearing mechanism, a transverse supporting guide rail mechanism which movably supports the pipe material bearing mechanism, and a transverse moving driver which is used for driving the pipe material bearing mechanism to reciprocate along a first transverse direction.

More particularly, the traversing unit comprises a traversing manipulator unit and/or a traversing hopper unit; in the transverse moving manipulator unit, the pipe material bearing mechanism comprises a pipe clamping jaw; in the traverse hopper unit, the pipe material carrying mechanism comprises a transfer hopper which is provided with a material groove which is arranged along the axial direction of the rotation axis and has an open outlet end; the transverse moving hopper unit comprises a material pushing mechanism used for pushing the pipe materials in the material groove into the second material clamping claw along the axial direction.

The further proposal is that along the advancing direction of the material moving system in the pipe material moving process, the traverse unit comprises the traverse manipulator unit, a transfer collecting hopper and the traverse hopper unit which are arranged in sequence; the intermediate collecting hopper is positioned on the lower side of the pipe clamping jaw and is provided with an inclined sliding material bottom plate which is arranged along the first transverse direction and is positioned on the lower side towards the end part of the second spinning machine; a material distributing unit for discharging the pipe materials in the hopper one by one is arranged at the discharge outlet of the transfer collecting hopper; driven by a transverse moving driver, the transfer hopper can transversely move to a position where a feed port of the transfer hopper is butted with a discharge port of the transfer collecting hopper. Through setting up the transfer collecting hopper to constitute the transfer and the storage of semi-manufactured goods pipe material, with the asynchronous degree of spinning process that can balance two spinning machines, and can simplify the control method of two spinning machines, and ensure the harmony of whole course of working and improve machining efficiency.

A further proposal is that the traverse hopper unit comprises a discharge hopper, is fixedly connected with the transfer hopper and is moved by the traverse driver, and is positioned at the lower side of the transfer hopper in the vertical direction; the pipe material is conveyed to the advancing direction of the second clamping jaw along the transfer hopper, and the material receiving opening of the discharging hopper is positioned at the downstream side of the transfer hopper so as to receive the pipe material pushed out of the second clamping jaw; the discharge hopper has an inclined chute floor arranged in a first transverse direction and located at a lower side towards the end of the first spinning machine, and the production line comprises a discharge opening for receiving a product hopper rolled out of the discharge opening of the discharge hopper, the product hopper being movably located at the bottom of the installation compartment. The discharging hopper is arranged below the transfer hopper, so that the discharging can be carried out firstly and then the loading is carried out in the same transverse moving stroke, and the processing efficiency is improved.

The further proposal is that the transverse moving manipulator unit comprises a lifting driving mechanism for driving the pipe clamping jaws to lift; the pipe clamp claw comprises a first side clamping claw, a second side clamping claw and an opening and closing driver for driving the clamping claws at the two sides to open and close; clamping rollers are rotatably arranged on the side clamping jaws; in the pipe clamping jaw, the connecting lines of the clamping support points of at least three clamping rollers for the pipe material form an acute triangle.

The transverse moving unit comprises a transverse moving manipulator unit; the transverse moving driver is used for driving the clamping claw to transversely move from a position right in front of the first clamping machine head to a position right in front of the second clamping machine head along a first transverse direction; the traverse robot unit includes an axial displacement drive for driving the tube gripper in axial movement along the axis of rotation.

Another preferred solution is that the traverse unit comprises a traverse robot unit comprising an axial displacement drive for driving the tube gripper in an axial direction of the rotation axis. To adjust the position of the tube stock in the axial direction of the rotation axis.

A further proposal is that the traverse unit comprises a traverse hopper unit; the base of the material pushing mechanism and the base of the transfer hopper are both fixedly connected to the transverse moving output end of the transverse moving driver; the transverse moving driver is used for driving the transverse moving output end to transversely move from a position right in front of the first material clamping machine head to a position right in front of the second material clamping machine head along the first transverse direction.

The other specific scheme is that the material moving system comprises a manipulator, a rotation driving unit, a base positioned at the installation space and a material pushing unit arranged on the second spinning machine; the mechanical arm comprises a mechanical arm and a clamping claw arranged on the swinging end of the mechanical arm, and the fixed end of the mechanical arm is rotatably arranged on the base through a hinge shaft; the rotation driving unit is used for driving the mechanical arm to rotate around the axis of the hinge shaft so as to enable the clamping claw to rotate from a position right in front of the first clamping machine head to a position right in front of the second clamping machine head; the material pushing unit is used for pushing the pipe materials on the material clamping claws positioned right ahead of the second material clamping mechanism into the second material clamping machine head.

The pushing unit is arranged on a second spinning machine head and comprises a plunger positioned right in front of the second clamping machine head and a pushing driving mechanism for driving the plunger to move along the axial direction of the second rotating axis; the pushing driving mechanism is used for driving the plunger to be plugged into the end part or pulled out of the end part.

In order to achieve the above another object, the present invention provides a further preferred embodiment, in which the rotary driving device is used for driving the spinning machine head to rotate relative to the frame; the first material clamping machine head is provided with a feeding through hole arranged along the axial direction of the rotating axis; the feeding device is a tail long pipe feeding device, is positioned at the tail side of the feeding through hole and is used for supplying long pipe blanks to the first material clamping claw from the tail side through the feeding through hole; the first spinning machine comprises a cutting device, a cutting tool and a cutting device, wherein the cutting device is positioned on the front side of the feeding through hole, comprises a cutting tool positioned beside the side of the spinning wheel and is used for cutting a semi-finished tube blank formed by spinning from the tube blank; the tail long pipe feeding device comprises a feeding push rod; the front end part of the feeding push rod is connected with the rear end part of the pipe blank through a sleeving structure capable of rotating relatively.

The feeding device is arranged to be a tail feeding device positioned at the tail side of the first material clamping machine head, the cutting tool is arranged at the front side of the first material clamping machine head, the feeding through hole positioned between the tail feeding device and the cutting tool is arranged on the material clamping machine head, the tail feeding device is used for feeding the long pipe from the tail side, and after the spinning is finished, the cutting tool is used for directly cutting off the formed part from the pipe blank; the spinning and the cutting-off treatment of the formed part can be carried out at least by one-time clamping based on the clamping claw, so that the processing precision is effectively improved, the related procedures are reduced, the manufacturing cost is reduced, and the waste of raw materials of the tube blank is reduced.

More preferably, the outer peripheral surface of the front end part of the sleeved rod section is a lead-in surface; the rotary connecting mechanism comprises a mounting sleeve fixedly sleeved with the front end part of the base rod and a connecting sleeve rotatably and fixedly sleeved with the rear end part of the sleeved rod section; the front end part of the inner cylinder cavity of the mounting sleeve is provided with an inner shoulder and a clamping groove positioned on the front side of the inner shoulder; the middle area of the outer peripheral surface of the connecting sleeve is provided with an outer shoulder; the front end part of the inner cylinder cavity is sleeved with a bearing, a clamp spring is clamped in the clamp groove and is used for tightly pressing an outer ring of the bearing between the outer ring and an inner shoulder; the rear end part of the connecting sleeve is sleeved in the inner ring of the bearing; the locking screw penetrating through the rear port of the mounting sleeve is in threaded fit with the rear port of the connecting sleeve, so that the retaining ring sleeved outside the locking screw tightly presses the inner ring of the bearing between the retaining ring and the outer shoulder; rotating gaps are reserved between the retaining ring and the outer shoulder and the outer ring of the bearing; the sleeved rod section is provided with a through hole arranged along the axial direction of the sleeved rod section, and the sleeved rod section is detachably fixed on the front end part of the connecting sleeve through the threaded fit of a locking screw which penetrates through the through hole from the front end and the front end part of the connecting sleeve; the outer peripheral surface of the connecting sleeve is convexly provided with a guide convex ring at the front side of the outer shoulder, and the guide convex ring is matched with the front end part of the inner cylinder cavity of the mounting sleeve to form a guide mechanism of the connecting sleeve and the mounting sleeve in the sleeving process.

Drawings

Fig. 1 is a perspective view of embodiment 1 of the present invention after omitting a shield;

fig. 2 is an end side view of embodiment 1 of the present invention with the protective cover omitted;

fig. 3 is a schematic layout diagram of the functional units in embodiment 1 of the present invention;

fig. 4 is a plan view of embodiment 1 of the present invention with the protective cover omitted;

fig. 5 is a perspective view of the material pushing rod in embodiment 1 of the present invention;

fig. 6 is a structural view of the front end portion of the ejector pin in embodiment 1 of the present invention;

fig. 7 is a perspective view of embodiment 1 of the present invention after omitting the tail feeding device and the shield;

fig. 8 is a perspective view of embodiment 1 of the present invention, after omitting the tail feeding device and the shield, and being different from the view shown in fig. 7;

FIG. 9 is an enlarged view of portion C of FIG. 7;

FIG. 10 is an enlarged view of portion F of FIG. 9;

FIG. 11 is an enlarged view of E in FIG. 8;

FIG. 12 is a schematic view of a prior art muffler;

FIG. 13 is an enlarged view of portion D of FIG. 8;

fig. 14 is a schematic view showing the relative positions of a transfer hopper and a discharge hopper in embodiment 1 of the present invention;

fig. 15 is a schematic structural diagram of a material moving system in embodiment 2 of the present invention;

fig. 16 is a schematic structural diagram of a material moving system in embodiment 3 of the present invention;

fig. 17 is a schematic structural view of a rotary manipulator on a material moving system in embodiment 4 of the present invention;

fig. 18 is a schematic structural view of a hopper and a pushing mechanism on the material moving system in embodiment 3 of the present invention;

fig. 19 is a schematic structural diagram of a material moving system in embodiment 4 of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

The utility model discloses a main design is through arranging the material system that moves between two spinning-lathe to can improve the degree of automation of muffler production, based on this design, in the following embodiment, mainly for carrying out exemplary description to the structure of moving the material system, spinning-lathe and loading attachment's structure can design with reference to the structure of current product.

Example 1

Referring to fig. 1 to 14, the muffler production line 9 of the present invention includes a control device, a product hopper 94, a first spinning machine 90, a second spinning machine 91, a tail feeding device 92 and a material moving system 93 controlled by the control device.

As shown in fig. 1 to 4, 7 and 8, the first spinning machine 90 includes a first frame 10, a first clamping head 11, a first spinning head 12, a cutting device, a pipe end dressing device, a protecting cover (not shown in the figure) and a rotary driving device for driving the first spinning head 12 and the first clamping head 11 to rotate relatively about a first rotation axis 100; the protective cover is mounted on the first frame 10 and covers the first spinning head 12. The first spinning head 12 and the first clamping head 11 are both mounted on the first frame 10, and in the positive direction of the X axis, the first spinning head 12 is located at the downstream side of the first clamping head 11, and the tail feeding device 92 is located at the upstream side of the first clamping head 11, that is, at the tail side of the first clamping head 11; and the cutting device is located at the downstream side of the first clamping head 11, i.e. at the front side of the first clamping head 11.

The second spinning machine 91 includes a second frame 20, a second clamping head 21, a second spinning head 22, a pipe end dressing device, a protecting cover (not shown in the figure), and a rotary driving device for driving the second spinning head 22 and the second clamping head 21 to rotate relatively around a second rotation axis 200; the protective cover is mounted on the second frame 20 and covers the second spinning head 22. The second spinning head 22 and the second clamping head 21 are both mounted on the second frame 20, and in the positive direction of the X axis, the second spinning head 22 is located on the upstream side of the second clamping head 21, and the first clamping head 11 and the second clamping head 22 are correspondingly distributed on both sides of the spacing line 901 as shown in fig. 4, and the clamping claws of the two clamping heads are both located on one side of the corresponding spinning head facing the transverse spacing line 901, that is, in the positive direction of the X axis, the first clamping claw 111 on the first clamping head 11 is located on the upstream side of the spacing line 901, and the second clamping claw on the second clamping head 21 is located on the downstream side of the spacing line 901.

As shown in fig. 1 to 4, the first rotation axis 100 of the first spinning machine 9 is arranged substantially parallel to the second rotation axis 200 of the second spinning machine 91, i.e. in the present embodiment, the first spinning machine 90 is arranged side by side with the second spinning machine 91, specifically, both rotation axes are arranged along the X-axis direction in the figure; the two spinning machines have an installation space 900 in the Y-axis direction, and the installation space 900 constitutes a service space in the maintenance of the equipment thereafter.

The control device comprises a touch control panel 902, a processor and a memory, wherein the memory stores a computer program; the control instruction of the operator is received through the touch control panel 902, so that the processor executes the corresponding computer program stored in the memory, and the functional units are controlled to execute the actions corresponding to the response according to the preset sequence, so as to perform feeding, first spinning, cutting, material moving and second spinning machine discharging, and obtain the formed part with the expected shape, namely the silencer 01 shown in fig. 12.

The first clamping head 11 comprises a rotating main shaft 110 which is rotatably arranged on the rear end part of the first frame 10 around a first rotating axis 100, and a first clamping claw 111 which is arranged on the front end part of the rotating main shaft 110 and is used for clamping the pipe 02; the material clamping claw 111 is used for clamping the front end of the tube material 02 to drive the tube material 02 to rotate synchronously, and the specific structure is not limited to the multi-petal structure in the figure, and can be designed by referring to other structures in the existing product.

The first spinning machine head 12, the cutting device and the pipe end trimming device are all arranged on the front end part of the first frame 10; in the spinning process, the rotary spindle 110 is driven to rotate around the first rotation axis 100 relative to the spinning wheel 120 of the first spinning head 12 by the rotary driving motor installed on the first frame 10, and the rotary driving motor is a rotary driving device in this embodiment, so as to drive the tubular material 02 clamped on the first clamping claw 111 to rotate relative to the spinning wheel 120 of the first spinning head 12, in this embodiment, the rotation axis 100 is arranged along the X-axis direction, and the lead vertical direction is the Z-axis direction. In order to realize that the tail feeding device 92 can feed from the tail side, a feeding through hole penetrating through the front end and the rear end of the rotating main shaft 110 is arranged on the rotating main shaft; the specific installation structure is that two ends of the rotating main shaft 110 are rotatably supported on the first frame 10 through bearings, and the rotating main shaft 110 is driven to rotate around the first rotation axis 100 relative to the first frame 10 through gears or synchronous pulleys sleeved outside the rotating main shaft; the axial direction of the rotary spindle 110 is arranged along the X-axis direction, and its feed-through hole is also arranged along the X-axis direction, i.e. the first clamping head 11 has a feed-through hole arranged along the extension direction of the rotation axis 100, in this embodiment, a substantially circular through hole, the axis of which is arranged substantially in line with the rotation axis 100.

The first spinning head 12 comprises a spinning wheel 120, a mounting sliding plate 31 and a feeding travelling mechanism 32, wherein the mounting sliding plate 31 is a plate structure arranged along an XOY plane, namely, arranged along a horizontal plane, and the spinning wheel 120 is rotatably mounted on the mounting sliding plate 31 through a mounting seat 121; the feed traveling mechanism 32 includes an X-axis sliding plate 321 slidably mounted on the first frame 10 along the X-axis direction through a guide rail slider mechanism 320, a linear displacement output device 322 for driving the X-axis sliding plate 321 to reciprocate along the X-axis direction, a guide rail slider mechanism 323 for mounting the mounting sliding plate 31 on the X-axis sliding plate 321 along the Y-axis direction, and a linear displacement output device 334 for driving the mounting sliding plate 31 to reciprocate along the Y-axis direction, for the linear displacement output devices 332, 334, a linear motor, a servo motor, an oil cylinder, an air cylinder, etc. are used, and in this embodiment, a linear displacement output device constructed by a servo motor and a screw nut mechanism is specifically used to drive the mounting sliding plate 31 to move in a two-dimensional space in the XOY plane. Of course, movement in three dimensions can be achieved by adding a drive mechanism along the Z axis. That is, in the present embodiment, the feed carriage 32 can be used at least to drive the mounting slide 31 to move in two dimensions along the extending direction of the rotation axis 100 and in the transverse direction perpendicular to the extending direction. The feed running mechanism 32 drives the spinning wheel 120 to move relative to the first clamping claw 111 according to a preset track as required, so as to spin a formed pipe part with a preset shape on the end part of the pipe 02.

The cutting device comprises a cutting tool 33, a mounting slide 31 and a feed travelling mechanism 32, i.e. in this embodiment the cutting device shares a set of feed drive mechanism with the first spinning head 12. The cutting tool 33 is detachably mounted on the mounting slide 31 via a tool holder 34.

The pipe end truing device includes a pipe end truing tool, a mounting slide 31, and a feed traveling mechanism 32, i.e., in the present embodiment, the pipe end truing device shares a feed driving mechanism with the first spinning head 12 and the cutting device. The pipe end trimming cutter comprises a cutting cutter 33 and an inner hole turning cutter 35, namely, the cutting cutter 33 and the cutting device share one cutting cutter; of course, a cutting tool can be independently arranged according to actual needs; the boring tool is detachably mounted on the mounting slide plate 31 via a tool holder, and the boring tool 35 is detachably mounted on the tool holder 36 via a bar-shaped shank arranged in the X-axis direction and extending in the direction of the first chuck jaw 111.

In a first transverse direction, namely in a Y-axis direction, the cutting tool 33, the inner hole turning tool 35 and the spinning wheel 120 are arranged in sequence at intervals, and a processing avoiding gap exists between the adjacent cutting tools and the spinning wheel, namely in the process of processing the pipe 02 clamped on the first clamping jaw 111 by using one of the cutting tools and the spinning wheel, the distance between the other cutting tool and the spinning wheel can ensure that the processing process is not interfered, and the specific distance is determined according to the size of the actual cutting tool and the size of the pipe blank to be processed; the positional relationship between the three components can be arranged according to the requirements before and after the processing procedure, and is not limited to the specific structure in the embodiment.

In the embodiment, the first spinning head 12, the cutting device and the pipe end trimming device share one set of feeding driving mechanism, which not only can reduce the component construction, but also is convenient for setting the machining avoiding interval. Of course, the three parts can be provided with corresponding feeding driving mechanisms independently, and the arrangement of the specific structure is not limited to the specific structure in the embodiment.

In the structure and position layout of each functional unit, the structure of the second spinning machine 91 is substantially the same as that of the first spinning machine 90, except that the rotating spindle thereof may be provided with a feeding through hole or not, that is, the second spinning machine 91 has the second clamping claw 221, the rotating spindle 226, the spinning wheel 220, the cutting tool 233 and the inner hole turning tool 235, and the structure of the second spinning machine will not be described herein again.

In the present embodiment, the feeding device 92 is a tail long tube feeding device, and the specific structure adopts the structure disclosed in the application of the present applicant, publication No. CN109570314A, and the partial description of the tail feeding device in this patent application is fully incorporated into the present application as part of the specific description of the present embodiment. As shown in fig. 5 and 6, the feeding ram 53 of the tail long tube feeding device includes a base rod 5300 and a sleeved rod segment 530 for being sleeved in the rear port of the long tube 01, and the sleeved rod segment 530 is rotatably mounted on the front end portion of the base rod 5300 through a rotary connection mechanism. In this embodiment, the outer peripheral surface of the front end of the sleeved rod section 530 is a lead-in surface for being inserted into the rear end of the long pipe 01, specifically, the conical surface structure shown in the figure is adopted. The rotary connecting mechanism comprises a mounting sleeve 534, a bearing 533 and a connecting sleeve 532; the mounting sleeve 534 is fixedly sleeved on the front end portion of the base rod 5300, in this embodiment, an end hole 5301 is formed in the front end portion of the base rod 5300, and the rear end portion of the mounting sleeve 534 is sleeved in the end hole 5301, and the sleeve can be fixed by using an adhesive, a screw connection, or a fastening bolt. An inner shoulder 5340 and a clamping groove 5345 positioned at the front side of the inner shoulder 5340 are arranged at the front end part of the inner cylinder cavity of the mounting sleeve 534; by the cooperation of the inner shoulder 5340 on the mounting sleeve 534 and the snap spring 5341 clamped in the snap groove 5345, the outer ring of the bearing 533 is pressed between the inner shoulder 5340 and the snap spring 5341, and the bearing 533 is clamped in the inner cylindrical cavity of the mounting sleeve 534. An outer shoulder 5320 is arranged in the middle area of the outer peripheral surface of the connecting sleeve 532, the rear end of the connecting sleeve 532 is sleeved in the inner ring of the bearing 533, the connecting sleeve 532 is fixed on the bearing 533 through the matching of a locking screw 535, a stop washer 536 and a baffle ring 537 with the outer shoulder 5320 arranged on the connecting sleeve 532, the outer shoulder 5320 abuts against the end surface of the inner ring of the bearing 533, the locking screw 535 is screwed on the inner threaded hole of the rear end of the connecting sleeve 532, namely, the locking screw 535 penetrating through the rear port of the mounting sleeve 534 is in threaded fit with the rear port of the connecting sleeve 532, so that the baffle ring 537 sleeved outside the locking screw 535 tightly presses the inner ring of the bearing 533 between the baffle ring 537 and the outer shoulder 5320. The sleeved rod section 530 is fixed on the connecting sleeve 532 through the locking bolt 531, specifically, the locking is realized through the matching of the locking bolt 531 and the internal screw hole arranged on the connecting sleeve 532 and the abutting of the front end surface of the connecting sleeve 532 on the internal shaft shoulder 5301 of the sleeved rod section 530, so that the rotatable connection of the sleeved rod section 530 and the base rod 5300 is realized, and the outer diameters are arranged in an approximately equal diameter; an outer shoulder 5302 is provided outside the sleeve rod section 530, which rests against the rear end face of the tube material.

As shown in fig. 1 to 3, 7 to 11, 13 and 14, the material moving system 93 is detachably mounted at a side of the second frame 20 by a bracket 41 and is located at an upper region of the installation space 900 between the two frames. Specifically, the transfer robot unit 931, the intermediate collecting hopper 932 and the traverse hopper unit 933 are sequentially included along the traveling direction of the semi-finished tube material during the transfer process. The transverse moving manipulator unit comprises a pipe clamping claw 42 positioned on one side of the first material clamping machine head 11, which is far away from the tail feeding device 92, namely positioned on the front side of the first material clamping machine head 11, and a travelling mechanism used for driving the pipe clamping claw 42 to move in a two-dimensional space relative to the first material clamping machine head 11; the intermediate collecting hopper includes a chute 48 mounted on the support 41 and arranged obliquely downward, the chute 48 has an oblique chute bottom plate arranged along the Y-axis and located at a lower side toward the end of the second spinning machine 91, that is, the oblique chute plate is arranged obliquely downward along the X-axis, and the chute 48 is located at a lower side of the pipe gripper 42.

For the specific structure of the traveling mechanism, a manipulator having two degrees of freedom in the Y-axis direction and the Z-axis direction may be used for the construction, and of course, a manipulator having three degrees of freedom of XYZ and Z may be used for the construction. In the present embodiment, a two-degree-of-freedom walking truss structure is adopted for construction, as shown in fig. 13, which includes a traverse bracket 44 slidably mounted on the bracket 41 through a first lateral support rail mechanism arranged along the Y-axis direction, a traverse linear displacement output device 491 for driving the traverse bracket 44 to reciprocate along the Y-axis direction with respect to the bracket 41, a mounting bracket slidably mounted on the traverse bracket 44 through a rail slider mechanism 45 arranged along the X-axis direction, a quick release mechanism 492 for locking the relative position between the rail and the slider on the rail slider mechanism 45, and a lifting drive mechanism 46 for driving the pipe clamp jaws to lift; that is, the elevation drive mechanism 46 is used to drive the pipe gripping jaw 42 to reciprocate in the Z-axis direction, and the traverse linear displacement output device 491 constitutes a first traverse driver in this embodiment. Specifically, the pipe clamp jaws 42 are directly fixed to the slides of the rail slide mechanism 45, i.e., in this embodiment, the slides on the rail slide mechanism 45 constitute the mounting bracket in this embodiment. The traverse linear displacement output device 491 may be constructed by using an air cylinder, an oil cylinder, a linear motor, or a rack and pinion mechanism, a synchronous belt mechanism, a lead screw nut mechanism, and a rotary servo motor, in this embodiment, the rotary servo motor 4911 is constructed by matching with the rack and pinion mechanism, specifically, a rack is fixed on the bracket 41, and a gear engaged with the rack is sleeved on a rotor shaft of the servo motor 4911. The lift drive mechanism 46 is constructed using a cylinder, specifically a multi-rod cylinder. The guide rail of the rail slider mechanism 45 is fixed to the elevation end of the elevation driving mechanism 46, and the fixed end of the elevation driving mechanism is fixed to the traverse bracket 44.

As for the pipe clamping jaw 42, it can be constructed by using a conventional clamping jaw structure such as a finger cylinder, and the specific structure in this embodiment is shown in fig. 13, including a finger cylinder 420; the first side clamping jaws 421 and 422 of the finger cylinder 420 each include an upper support arm and a lower support arm extending inward and having a cantilever structure, i.e., upper support arms 4210, 4220 and lower support arms 4211 and 4221, a clamping roller, i.e., clamping rollers 423, 425 and 426, is rotatably mounted on a free end of each support arm, and in the clamping process, the four clamping rollers form a clamping contact portion for clamping the tube stock, i.e., four points clamped on the outer circumferential surface of the tube stock 03, the four points have points located on both sides of a radial plane, which is a plane passing through the center of the tube stock 03, so that the clamping is stable; wherein the pipe clamping jaws 42 form the pipe loading mechanism in the embodiment, and the traverse linear displacement output device 491 forms a traverse driver for driving the pipe loading mechanism to reciprocate along the transverse support rail.

As shown in fig. 8, a pipe distributing unit is disposed at the end of the transfer collecting hopper for discharging the pipe materials 03 stacked in the trough 48 one by one from the lower end discharge port, and specifically includes a distributing mechanism 481 and a material stopping mechanism 482, and the material rolling bottom plate of the distributing mechanism and the material stopping mechanism can separate the bins for accommodating only a single pipe material, and the specific structures of the distributing mechanism and the material stopping mechanism can refer to the structure disclosed in the patent document CN 208341743U.

As shown in fig. 7 to 11, the traverse hopper unit includes a mounting base 950, a transfer hopper 951 mounted on the mounting base 950, a discharge hopper 952 fixed on the mounting base 950 and vertically located below the transfer hopper 951, a traverse driving mechanism 96, and a pusher mechanism; in this embodiment, the transfer hopper 951 includes a material receiving groove 953 for supporting the tube 03, and in this embodiment, the material receiving groove 953 has a V-shaped groove structure.

The traverse driving mechanism 96 comprises a supporting slide 961 fixed on the second frame 20, two linear guide rails 962 slidably mounted on the supporting slide 961 and arranged along the Y-axis, and a linear displacement output device 963 for driving the two linear guide rails 962 to reciprocate along the Y-axis relative to the supporting slide 961, wherein in the embodiment, the linear displacement output device 963 is constructed by using an air cylinder, and a piston rod of the linear displacement output device is fixedly connected with the mounting seat 960; the mounting seat 960 is fixed on the front end parts of the two linear guide rails 962, specifically, the front end parts of the Y-axis positive direction are mounted; the receiving port 9520 of the discharge hopper 952 is located on the downstream side of the relay hopper 951 in a direction toward the second clamping jaw 221 along the mounting base 960, i.e., in the Y-axis forward direction. The linear guide 962 is an i-shaped guide and the support slider 961 is an i-shaped slider that engages with the linear guide 962, so that the entire traverse driving mechanism 96 is mounted in a suspended manner on the second frame 20, specifically, on the second frame 20 via the support plate 9600 shown in fig. 10. The transfer hopper 951 constitutes a pipe material carrying mechanism in the traverse hopper unit in this embodiment, so as to carry pipe materials during the transfer process.

As shown in fig. 10, the pushing mechanism includes a traverse support directly fixed to the mounting base 960 and moving in the Y-axis direction, a pushing plate 971 slidably mounted on the traverse support, and a linear displacement output device capable of driving the pushing plate 971 to move in the X-axis direction relative to the second clamping claw 221, wherein a notch at one side of the receiving groove 953 forms a feed port of the transfer hopper 951, which is abutted against a discharge port of the transfer collecting hopper, and a baffle 9535 is fixedly provided at the other side of the receiving groove 953 to stop the tube 03 rolled out from the chute 48 in the receiving groove 953, and a material detecting sensor 9536 is fixedly provided on the baffle 9535 to detect whether the tube 03 exists in the receiving groove 953.

The discharge hopper 952 includes a bottom plate 9520, material retaining side wing plates 9521 and 9522 bent and extended upward from both sides of the bottom plate 9520, and an end side wing plate 9523 bent and extended upward from an inlet end of the bottom plate 9520; the bottom plate 9520 is arranged to be inclined downward in the negative direction of the Y-axis, the end of the bottom plate 9520 forms the discharge port 95200 of the discharge hopper 952, that is, a direction from the feed port 95201 toward the discharge port 95200, and the bottom plate surface of the discharge hopper 952 is arranged to be inclined downward.

A relay hopper is arranged between the finished product hopper 94 and the discharge hopper 952, and the relay hopper is provided with a rolling material plate 9570 which is obliquely arranged, side material blocking plates 9571 which are fixedly arranged on two sides of the relay hopper and an upper bottom material blocking plate 9572 at the bottom side end; in the finished product discharging process, the tail end of the discharging hopper 952 is always in a vertically-up-down overlapping position with the feeding hole of the material rolling plate 9570, so that the finished tube 01 received by the discharging hopper 952 can be rolled into the finished product hopper 94 through the relay hopper. In this embodiment, the product hopper 94 is used for receiving the tube material rolled out from the outlet of the discharge hopper 952, and specifically, the product hopper 94 is movably located at the bottom of the installation space 900 by a roller fixed at the bottom.

The method for obtaining the silencer 01 shown in fig. 12 by using the spinning machine comprises the following steps:

in the tube end positioning step S1, the feeding and traveling mechanism 32 is controlled to drive the spinning wheel 120 to move to a positioning position right in front of the first clamping claw 111, and then the tail feeding device 92 is controlled to feed the long tube 02 until the front end surface of the tube 02 abuts against the wheel end surface of the spinning wheel 120, so as to position the tube end.

In the embodiment, the tail feeding device 92 is used for supplying the tube material 02 from the tail side to the first clamping claw 111 and the rotary pressing wheel 120 through the feeding through hole, the tube material 02 is a long tube blank, that is, the length of the tube material is enough to ensure that more than two rotary pressing pieces can be spirally pressed out, specifically, the length of the tube material exceeds twice the length of the feeding through hole, wherein the length of the feeding push rod 53 is greater than the length of the feeding through hole of the first rotary main shaft 110, so that the tube material 02 with a short residual length after being cut for multiple times can be fed.

In the first spinning forming step S2, the rotating spindle 110 is driven to rotate the tube 02 by the first clamping claw 111, and the control feed traveling mechanism 32 drives the spinning wheel 120 to move along a predetermined trajectory, so as to spin a forming tube 030 of a predetermined shape at the front end of the tube 02, where the specific structure of the forming tube 030 is shown in fig. 12.

After the spinning forming, a port trimming step and a secondary positioning step, wherein the port trimming step comprises controlling the spinning wheel 120 to exit from the spinning position; then, the rotary driving device is controlled to drive the rotary spindle 110 to drive the tube blank 01 to rotate, the feed running mechanism 32 is controlled to drive the cutting tool 33 to feed to the end side of the formed end portion 030 so as to perform end face flattening processing on the necking portion of the formed end portion 030, and the in-vehicle hole tool 35 is driven to extend into the formed end portion 030 so as to perform in-vehicle hole trimming processing on the necking portion of the formed end portion 030. The secondary positioning step includes controlling the feeding travelling mechanism 32 to drive the spinning wheel 120 to move to a positioning position located right in front of the first clamping claw 111, and then controlling the tail feeding device 92 to push the long pipe 01 until the front end face of the long pipe 01 abuts against the end face of the spinning wheel 120, so as to perform secondary positioning on the pipe end, and cut off the semi-finished pipe 02 with a fixed length. In the first spinning step S2, the tube end surface is positioned twice so that the length of the tube outside the first clamping claw during spinning is short to improve the structural strength and ensure the machining accuracy, and the second positioning is performed with the tube end surface after cutting as a reference to further improve the machining accuracy.

In a first discharging step S3, the traveling mechanism is controlled to slightly clamp the tube clamping jaws 42 on the front end of the tube material 02, the tube clamping jaws 42 are located at the material grabbing position in the present embodiment, preferably, the four clamping rollers 423, 425 and 426 have elastic jacket layers, specifically, located on the outer sides, and the tube material segments are cut off from the tube material 02 by a cutting device according to a predetermined length to obtain a semi-finished tube material 03, and are moved to the position where the semi-finished tube material 03 is located above the transfer collecting hopper along the Y axis, at this time, the tube clamping jaws 42 are located at the discharging position in the present embodiment, and then descend to release the finished tube material 03 onto the chute 48 of the transfer collecting hopper.

In the second feeding step S4, the distributing unit is used to release the semi-finished tube 03 stacked in the chute 48 into the receiving slot 953, at this time, the transferring hopper 951 is located at the feeding position, and the traverse driving mechanism 96 is controlled to drive the transferring hopper 951 and the discharging hopper 952 to move forward along the Y axis, the feeding port 9520 of the discharging hopper 952 is located right below the second clamping claw 221, at this time, the discharging hopper 952 is located at the receiving position in this embodiment to receive the finished tube 04 pushed out by the second rotator head 21, and then continuously moves forward along the Y axis until the receiving slot 953 of the transferring hopper 951 is butted with the second clamping claw 221, at this time, the transferring hopper is located at the pushing position in this embodiment, so that the semi-finished tube 03 loaded on the receiving slot 953 is pushed into the second clamping claw 221 by the pushing mechanism. Namely, the material pushing mechanism of the utility model is used for pushing the pipe material in the material receiving groove into the second material clamping claw 221 along the X forward direction.

In the traverse driving mechanism 96, the linear displacement output device 963 is a traverse driving cylinder, and the support 41, the support slide 961 and the linear guide 962 together form a second lateral support rail mechanism in this embodiment, and a second lateral support rail mechanism for slidably supporting the mounting seat 950, that is, in this embodiment, the second lateral support rail mechanism is indirectly used for movably supporting the transfer hopper 951 through the mounting seat 950; the traverse hopper unit includes a transfer hopper 951, a second lateral support rail mechanism for slidably supporting the transfer hopper 951, a second traverse driver, and a pusher mechanism. In this embodiment, a cylinder is used to construct the driving mechanism, in order to enable driving in the Y axis direction to have two positioning positions, a positioning stop cylinder is arranged on the second frame 20, and constitutes a positioning actuator in this embodiment, and together with the traverse driving cylinder, constitutes a second traverse driver in this embodiment, a piston rod of the positioning stop cylinder is fixedly connected to the support plate 9600, and an axial direction of the piston rod is arranged along the Y axis direction, and during operation, the cylinder body is driven to move telescopically between a first positioning position and a second positioning position along the Y axis direction, and the first positioning position is located on an upstream side of the second positioning position along the Y axis direction; when the positioning and stopping cylinder is located at the first positioning position, the cylinder body of the positioning and stopping cylinder forms a stopping and limiting mechanism for the linear guide rail 962 to move forward continuously along the Y-axis, and the receiving port 9520 of the discharging hopper 952 at this time is located below the second clamping claw 221 so as to be located at the receiving position in the present embodiment, that is, the second traverse actuator in the present embodiment is further configured to drive the receiving port 9520 of the discharging hopper 952 to move forward to the receiving position, that is, the target position in the present embodiment, when the cylinder body of the positioning and stopping cylinder is located at the second positioning position, the cylinder body does not limit the movement of the linear guide rail 962, at this time, the linear guide rail 962 moves forward continuously along the Y-axis to a position where the transfer hopper 951 is opposite to the second clamping claw 221 so as to be located at the position in the present embodiment, after the discharging and the loading of the second clamping claw are completed, the traverse actuator 96 drives the transfer hopper 951 to move back to the discharge port of the inclined sliding material bottom plate for receiving, the Y-axis constitutes the material moving transverse direction in this embodiment, i.e. the second traverse driver is used to drive the transfer hopper 951 to move back and forth between the feeding position and the material pushing position along the material moving transverse direction.

In the second spinning forming step S5, the outer end portion, i.e., the non-spun end portion, of the semi-finished tube material 03 is subjected to spinning processing by the second spinning machine 91.

The second discharging step S6, as described in the second feeding step S4, performs a discharging process before the feeding, and the discharged finished tube material 01 rolls into the finished product hopper 94 along the discharging hopper 952 and the relay hopper.

The above steps are repeated to continuously process the finished pipe material 01, i.e. the silencer. In the present embodiment, during the transferring of the tube material by the material transferring system 93, the tube material is always kept in the axial direction substantially along the axial direction of the rotation axis, i.e. along the X-axis direction, so as to facilitate the tube material transfer between the two spinning machines, especially the feeding on the second spinning machine. And the material moving system is arranged between the first spinning machine and the second spinning machine and is used for moving the pipe material clamped on the first clamping claw to the second clamping claw in the working process. By providing the lifting drive mechanism 46 in the traveling mechanism to drive the pipe gripping jaw 42 to vertically lift, the heights of the two rotating spindles in the Z-axis direction can be set to be equal, that is, the rotating axes of the rotating spindles of the two spinning machines are arranged at equal height in the present embodiment.

Example 2

As a description of embodiment 2 of the present invention, only the differences from embodiment 1 will be described below.

In this embodiment, the material transfer system is constituted by only the traverse robot unit, i.e. the transfer hopper and the traverse hopper unit are omitted with respect to embodiment 1, and compared with the traverse robot unit in embodiment 1, it includes a traverse actuator for driving the pipe gripping jaw to move in the first traverse direction, i.e. in this embodiment, the traveling mechanism in the traverse robot unit is a three-dimensional traveling mechanism, and the specific structure is, as shown in fig. 15, a structure including a traverse support rail 151, a slide carriage 152 slidably supported on the traverse support rail 151, a linear displacement output device 153 for driving the traverse carriage 152 to slide along the traverse support rail 151, and the linear displacement output device 153 may specifically adopt a combination of an air cylinder, an oil cylinder, a linear motor, or a rotary motor and a screw-nut mechanism, so that the slider in the traverse carriage 152 reciprocates in the X-axis direction with respect to the traverse support rail 151, the linear displacement output device constitutes the axial displacement driver in this embodiment. The gripping claw 154 is suspended below the traverse slide 152 by a longitudinal movement guide 157 and is driven to move in the Y-axis direction by a linear movement output device 155, and the lifting drive cylinder 156 drives the lifting movement of the gripping claw 154. Therefore, in the using process, the pipe material is directly clamped and moved to the front end of the second clamping claw along the Y axial direction, and the pipe material 03 is driven to move along the X axial direction to be inserted into the second clamping claw, and at the moment, in order to reduce the influence of the clamping position on the length of the pipe material inserted into the second clamping claw as much as possible, the following two ways can be adopted for solving the problem; (1) after the pipe material is inserted into the second clamping jaw 42, the pipe clamping jaw is closed, the pipe material is pushed by the vertical end face to push the pipe material forward along the X axis, and the pipe material 03 is positioned on the second spinning machine 91; (2) during the severing process, the gripping position of the pipe gripping jaw 42 is brought as close as possible to the severing position.

In operation, the linear displacement output device 153 is used to drive the clamping claw 154 to move from a position directly in front of the first clamping head to a position directly in front of the second clamping head along the X-axis direction.

Example 3

As a description of embodiment 3 of the present invention, only the differences from embodiment 1 will be described below.

The material moving system is only composed of a traverse hopper unit, namely, a transfer collecting hopper and a traverse manipulator unit are omitted compared with embodiment 1, at the moment, a traverse driving mechanism 96 of the traverse hopper unit can drive the transfer hopper to move to a material receiving groove which can be positioned below the first clamping material, so that the cut-off and dropped pipe material 03 can be received.

At this time, as shown in fig. 16 and 18, the schematic configuration includes a traverse support rail 161, a slide slider 162 slidably supported on the traverse support rail 161, and a linear displacement output device 163 for driving the traverse slider 162 to slide along the traverse support rail 161, wherein the linear displacement output device 163 may specifically adopt a combination of an air cylinder, an oil cylinder, a linear motor, or a rotary motor and a lead screw nut mechanism, so as to reciprocate a slider in the traverse slider 162 in the X-axis direction relative to the traverse support rail 161, and the linear displacement output device constitutes a shaft displacement driver in this embodiment.

The transfer stub bar 164 is suspended below the traverse slide 162 by a support plate 165, and has a V-shaped material groove 1640; a material pushing and pushing mechanism is installed below the lateral sliding seat 162 and includes a triangular material pushing plate 1661 and a linear displacement output device 1662, and the linear displacement output device 1662 is used for driving the triangular material pushing plate 1661 to move along the Y-axis direction so as to push the tube material 03 located in the V-shaped material groove 1640 into the second material clamping machine head. In operation, the linear displacement output device 163 is used to drive the transfer head 164 to traverse along the X-axis from a position directly in front of the first material clamping head to a position directly in front of the second material clamping head.

Example 4

As a description of embodiment 4 of the present invention, only the differences from embodiment 1 will be described below.

As shown in fig. 17 and 19, the material moving system includes a robot 171, a rotation driving unit, a base 172 located at an installation space between the two spinning machines, and a material pushing unit 173 installed on the second spinning machine.

The manipulator 171 comprises a mechanical arm 1710 and a material clamping claw 1711 arranged on the swinging end of the mechanical arm 1710, wherein the fixed end of the mechanical arm 1710 is rotatably arranged on the base 172 through a hinge shaft 174; the rotation driving unit is used for driving the mechanical arm 1710 to rotate around the axis of the hinge shaft 174, so that the clamping claw 1711 rotates from a position right in front of the first clamping head to a position right in front of the second clamping head 178.

The material pushing unit 173 is used for pushing the tube material 03 on the material clamping claw 1711 located at the position right in front of the second material clamping mechanism into the second material clamping machine head 178, specifically, the material pushing unit 173 is installed on the second spinning machine head 179, and includes a material pushing plate 1731 located right in front of the second material clamping machine head 178 and a material pushing driving mechanism 177 for driving the material pushing plate 1731 to move axially along the second rotation axis, the material pushing driving mechanism 177 is a linear displacement output device, and specifically, a combination of a cylinder, an oil cylinder, a linear motor or a rotary motor and a screw nut mechanism can be adopted.

In this embodiment, the material gripping jaw is constructed using the pipe gripping jaw 42 of embodiment 1, and will not be described herein.

Example 5

As a description of embodiment 5 of the present invention, only the differences from embodiment 4 will be described below.

Referring to the structure shown in fig. 19, the material pushing plate 1731 is replaced by a plunger, specifically, an elastic plunger is selected, during the working process, the elastic plunger is plugged into the rear end opening of the tube 03, the material clamping claw 1711 is controlled to release the clamping of the tube 03, then, the plunger is driven to drive the tube 03 to extend into the second material clamping claw so as to be clamped, and after the tube 03 is clamped by the second material clamping claw, the plunger is pulled out of the tube 03. In order to better push the pipe materials, an outer shaft shoulder part can be arranged on the peripheral surface of the elastic plunger piston to construct a stop mechanism, so that partial thrust can be applied to the end surface of the pipe materials in the pushing process. In this embodiment, the plunger is disposed at the second position for driving the tube material 03 at the second position to move to the target position along the tube axial direction, i.e. to the spinning processing station of the second spinning machine.

In the above embodiments, the rotary driving device is constructed by using a rotary motor to drive the material clamping head and the spinning machine head to rotate around the first rotation axis 100 or the second rotation axis 200 relatively, and specifically, to drive the rotary spindle to rotate around the rotation axis relatively to the frame. Of course, the rotation driving device may be constructed by other rotation output devices, for example, a rotation driving device constructed by a gasoline engine, a diesel engine, etc. driven by a timing belt, a gear transmission mechanism, etc. to construct the above-described embodiments, or a rotation displacement output device constructed by a linear displacement output device such as an oil cylinder, an air cylinder, etc. and a conversion mechanism such as a rack and pinion mechanism, etc. converting a linear displacement into a rotation displacement. Wherein. The "trailing side" is configured as the side of the stripper head facing away from the spinning head and the "leading side" is configured as the side of the stripper head adjacent to the spinning head.

The main idea of the present invention is to arrange a material moving system between two spinning machines to improve the automation degree of the silencer production, based on the present idea, in the following embodiments, the structure of the main spinning machine and the feeding device has various obvious changes, not limited to the exemplary structure in the above embodiments, and also has various obvious changes to the specific structure of the material moving system.

Claims (10)

1. A production line of a silencer comprises a first spinning machine and a second spinning machine; the first spinning machine comprises a rack, a first spinning machine head and a first clamping machine head, wherein the first spinning machine head and the first clamping machine head are mounted on the rack and driven by rotary driving equipment to rotate around a first rotating axis relatively, and the first clamping machine head comprises a first clamping claw; the second spinning machine comprises a rack, and a second spinning machine head and a second clamping machine head which are arranged on the rack and driven by the rotary driving equipment to rotate around a second rotary axis relatively, wherein the second clamping machine head comprises a second clamping claw; the method is characterized in that:

an installation space is reserved between the first spinning machine and the second spinning machine, the production line comprises a feeding device used for feeding the first spinning machine and a material moving system which is arranged between the first spinning machine and the second spinning machine and used for moving the pipe materials clamped on the first material clamping claw to the second material clamping claw.

2. The production line of claim 1, wherein:

the mounting base of the material moving system is positioned in the mounting interval space;

the first spinning machine and the second spinning machine are arranged side by side, and the installation interval space is positioned between the two spinning machines in a first transverse direction perpendicular to the rotation axis; the first spinning machine head and the second spinning machine head are respectively positioned on one side of the transverse spacing line, and the material clamping claws are both positioned on one side of the spinning machine head facing the transverse spacing line; the laterally spaced lines are arranged along the first lateral direction.

3. The production line of claim 2, wherein:

the material moving system comprises a transverse moving unit; the transverse moving unit comprises a pipe material bearing mechanism, a transverse supporting guide rail mechanism for movably supporting the pipe material bearing mechanism, and a transverse moving driver for driving the pipe material bearing mechanism to reciprocate along the first transverse direction.

4. The production line of claim 3, wherein:

the transverse moving unit comprises a transverse moving manipulator unit and/or a transverse moving hopper unit; in the traversing manipulator unit, the tube material carrying mechanism comprises a tube clamping jaw; in the traverse hopper unit, the tube material carrying mechanism includes a transfer hopper having a hopper arranged in an axial direction of the rotation axis and having an outlet end open; the transverse moving hopper unit comprises a pushing mechanism used for pushing the pipe materials in the material groove into the second clamping claw along the axial direction.

5. The production line of claim 4, wherein:

the transverse moving unit comprises a transverse moving manipulator unit, a middle collecting hopper and a transverse moving hopper unit which are sequentially arranged along the advancing direction of the material moving system in the pipe material moving process;

the intermediate collecting hopper is positioned on the lower side of the pipe clamping jaw and is provided with an inclined sliding material bottom plate which is arranged along the first transverse direction and is positioned on the lower side towards the end part of the second spinning machine; a material distributing unit for discharging the pipe materials in the hopper one by one is arranged at the discharge outlet of the transfer collecting hopper; driven by a transverse moving driver, the transfer hopper can transversely move to a position where a feed port of the transfer hopper is butted with a discharge port of the transfer collecting hopper.

6. The production line of claim 4, wherein:

the transverse moving manipulator unit comprises a lifting driving mechanism for driving the pipe clamping jaw to lift;

the pipe clamp claw comprises a first side clamping claw, a second side clamping claw and an opening and closing driver for driving the clamping claws at the two sides to open and close; clamping rollers are rotatably arranged on the side clamping jaws; in the pipe clamping jaw, the connecting lines of the clamping support points of at least three clamping rollers for the pipe material form an acute triangle.

7. The production line of claim 4, wherein:

the traverse unit includes a traverse manipulator unit; the transverse moving driver is used for driving the clamping claws to transversely move from a position right in front of the first clamping head to a position right in front of the second clamping head along the first transverse direction;

the traverse robot unit includes an axis-shift drive for driving the tube gripper to move in the axial direction of the rotation axis.

8. The production line of claim 4, wherein:

the traverse unit comprises the traverse hopper unit; the base of the material pushing mechanism and the base of the transfer hopper are both fixedly connected to the transverse moving output end of the transverse moving driver;

the transverse moving driver is used for driving the transverse moving output end to transversely move from a position right in front of the first material clamping machine head to a position right in front of the second material clamping machine head along the first transverse direction.

9. The production line of claim 1, wherein:

the material moving system comprises a manipulator, a rotation driving unit, a base positioned at the installation interval space and a material pushing unit arranged on the second spinning machine; the manipulator comprises a mechanical arm and a material clamping claw arranged on the swinging end of the mechanical arm, and the fixed end of the mechanical arm is rotatably arranged on the base through a hinge shaft; the rotation driving unit is used for driving the mechanical arm to rotate around the axis of the hinge shaft so as to enable the clamping claw to rotate from a position right in front of the first clamping head to a position right in front of the second clamping head;

the material pushing unit is used for pushing the pipe materials on the material clamping claws located at the position right in front of the second material clamping machine head into the second material clamping machine head.

10. The production line of claim 9, wherein:

the pushing unit is arranged on the second spinning machine head and comprises a plunger positioned right in front of the second clamping machine head and a pushing driving mechanism for driving the plunger to move along the axial direction of the second rotating axis; the pushing driving mechanism is used for driving the plunger to be plugged into one end part of the pipe material or pulled out of the end part.

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