CN112475984B

CN112475984B - Method and device for cutting polymer tube and bar

Info

Publication number: CN112475984B
Application number: CN202011075939.6A
Authority: CN
Inventors: 曾维楚; 邓平; 刘广; 张立群; 曾伟; 宋正科
Original assignee: Zhuzhou Hongda Polymer Materials Co ltd
Current assignee: Zhuzhou Hongda Industrial Materials Co.,Ltd.
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2022-03-04
Anticipated expiration: 2040-10-10
Also published as: CN112475984A

Abstract

The application relates to a method and a device for cutting and processing a polymer tube bar. Conveying the pipe and the bar to a supporting mechanism by using an automatic feeding mechanism, clamping the pipe and the bar from the supporting mechanism by using a clamping mechanism, moving the pipe and the bar to a product processing mechanism, moving a cutter to a position of the pipe and the bar to be cut by using a transverse translation mechanism and a longitudinal translation mechanism, and then driving the pipe and the bar to rotate by using the product processing mechanism to cut the pipe and the bar; when the pipe and bar are subjected to internal cutting machining, the scraps generated by cutting the interior of the pipe and bar are treated by a scrap suction mechanism; when the pipe and bar are subjected to external cutting processing, scraps generated by external cutting of the pipe and bar are treated by a scrap blowing mechanism. The utility model can automatically feed and discharge, thereby improving the processing efficiency of the polymer tube bar and ensuring the safe processing of the polymer tube bar. The cutting tool for moving and cutting the pipe and the bar is used for positioning and cutting the pipe and the bar, the chip suction mechanism and the chip blowing mechanism are used for preventing chips and continuous filiform long chips from influencing the normal processing of the pipe and the bar, and the processing quality of the pipe and the bar is ensured.

Description

Method and device for cutting polymer tube and bar

Technical Field

The utility model relates to machining of a polymer tube bar, in particular to automatic machining of the polymer tube bar and automatic scrap treatment.

Background

At present, when a polymer tube bar is machined, the turning scraps of a polymer material are thready and continuous and are not easy to break, the polymer material is very easy to wind on a workpiece or a cutter, the inner hole is easy to block by the turning scraps when the inner hole is machined, the thready continuous turning scraps need to be manually blown or manually pulled in a conventional machining mode, the manual switching has the defects of low working efficiency, easy error, potential safety hazard and the like, and the automation is difficult to realize; meanwhile, the polymer long pipe rod is long, the pipe rod must be turned around in the machining process when the two ends of the polymer long pipe rod are separately machined, the control of the machining process is manually completed, the efficiency is low, the cost is high, the machining quality is unstable, the polymer long pipe rod is soft in material and can be easily thrown, and the simultaneous machining of the two ends is difficult to achieve. The processing of the long polymer pipe rod realizes automatic feeding and discharging, and the surface of the polymer material is very easy to scratch in the feeding process because the material is long, so that automatic intelligent manufacturing is very difficult to realize.

At present, the polymer tube bar has the following defects in machining:

1. before processing, the polymer tube bar is placed well, the machining equipment can be started, and after the polymer tube bar is processed, the machining equipment is turned off, and then the tube bar is taken away. When the pipe and bar materials are placed and taken away and the switch equipment is started, the work personnel can finish the operation only by continuously walking beside the machine tool, the work efficiency is low, the work personnel are easy to fatigue under the monotonous and repeated working state, and the potential safety hazard is large.

2. Because the pipe is longer, need make special positioner, can only process one end at every turn, inefficiency, still when putting into manual locking mechanism in the tubular product easily, make the outside surface of tubular product take place the scraping with the part in the locking mechanism, make tubular product become the defective products.

3. Add man-hour to many places of polymer long tube rod, need adopt a plurality of processes to process usually, and the switching of each process relies on the manual work to switch, and the manual work switches to have that work efficiency is low, easily make mistakes, has defects such as potential safety hazard, adds man-hour when polymer tube rod clamping pay-off, and the easy fish tail in surface leads to the quality unstable, and the disability rate is high.

4. When the polymer pipe is machined, filamentous continuous turning scraps can be generated, if the filamentous scraps or continuous long scraps cannot be quickly and timely cleaned, the continuous filamentous scraps are easily wound on the periphery of the pipe, the scrap hanging on a cutter cannot reach the surface roughness of the pipe, the inner hole is easily blocked, the pipe is directly scrapped, the quality is very difficult to guarantee, and the rejection rate is high. The following patents are found to have similarities with the present invention through domestic search:

the utility model discloses a plastic pipe and bar cutting device with the application number of CN201610755579.1, namely a plastic pipe and bar cutting device and a plastic pipe and bar cutting machine based on the cutting device, which comprises a frame, wherein a hollow rotary cutting seat capable of allowing a pipe and bar to be cut to pass through and a rotary driving device are rotatably arranged on the frame, clamping devices for clamping the pipe and bar to be cut are arranged at two ends of the rotary cutting seat on the plastic pipe and bar cutting device, three mounting seats are distributed at the end part of the discharge side of the rotary cutting seat, a cutting knife seat sliding along the radial direction of the rotary cutting seat is arranged on each mounting seat, a knife feeding driving seat is movably sleeved on each rotary cutting seat, a knife feeding power device for driving the knife feeding driving seat to move along the axial line of the rotary cutting seat is arranged on the frame, three fixing seats corresponding to the cutting knife seats are arranged on each knife feeding driving seat, and a pair of driving plates arranged parallel to the sliding direction of the cutting knife seats is arranged on each fixing seat, the driving plate is provided with a driving long hole which forms an acute angle with the axis of the pipe rod, and two sides of the cutting knife holder are respectively provided with a transmission rod which penetrates through the driving long hole. The utility model also discloses a plastic pipe and bar cutting machine based on the cutting device.

Application number is CN201820579362.4, the utility model discloses a pipe rod turning equipment of title "a pipe rod turning equipment", belongs to machining technical field, include workstation, support, electronic three-jaw chuck, push away material cylinder, processingequipment, pipe rod, characterized by: the material pushing cylinder is arranged at the front end of the workbench, the electric three-jaw chuck is arranged at the rear end of the workbench, the machining device is arranged on the left side of the workbench and comprises a motor, a moving platform, a lead screw and a turning tool, an output shaft of the motor is connected with the lead screw, the moving platform is arranged on the lead screw, the turning tool is arranged on the moving platform, the right side of the workbench is provided with a discharging device, the discharging device comprises a placing box, a discharging cylinder and a base, the inside of the placing box is provided with an inclined guide plate, and a piston rod on the discharging cylinder extends into the inside of the placing box. The utility model has simple structure and convenient discharge and turning of the tube and bar materials.

Although the above patents are all for processing tube and bar materials, the above patents do not disclose an automatic method and an automatic device for the feeding and discharging processes. The tool for cutting the tube and the bar is also different from the cutting device of the utility model, and the utility model adopts a transverse translation mechanism and a longitudinal translation mechanism to move and accurately position the position of the cutter during processing, thereby accurately processing the specific part of the tube and the bar. The utility model is also provided with a scrap sucking mechanism for processing scraps generated by cutting the interior of the tube and bar, and a scrap blowing mechanism for processing scraps generated by cutting the exterior of the tube and bar.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: how to improve the efficiency of processing the polymer tube bar, reduce the procedures and working hours increased by turning around, save the action of manual clamping and reduce the labor intensity of workers; prevent that polymer pipe rod from carrying out the peripheral of piece winding at pipe rod when the machine tooling, or twine on the cutter, or fall into in the hole of pipe rod to ensure the processingquality of product in the course of working, the safety of guarantee processing is gone on.

In order to solve the problems, the technical scheme provided by the utility model is as follows: a method for cutting and processing polymer tube and bar materials comprises the steps that firstly, an automatic feeding mechanism is used for conveying the tube and bar materials to a supporting mechanism, then a clamping mechanism is used for clamping the tube and bar materials from the supporting mechanism and moving the tube and bar materials to a product processing mechanism, then a cutter is moved to a position, needing to be cut, of the tube and bar materials through a transverse translation mechanism and a longitudinal translation mechanism, and then the product processing mechanism is used for driving the tube and bar materials to rotate to cut and process the tube and bar materials; when the pipe and bar are subjected to internal cutting machining, the scraps generated by cutting the interior of the pipe and bar are treated by a scrap suction mechanism; when the pipe and bar are subjected to external cutting processing, scraps generated by external cutting of the pipe and bar are treated by a scrap blowing mechanism.

Preferably, the pipe bar is placed in a box body, a transmission hole is formed in the box body, a transmission plate is arranged behind the box body, and a pushing mechanism is arranged below the box body; when the pipe rods in the box body are put down by the pushing mechanism, the pipe rods in the box body roll out from the transmission holes under the action of gravity and fall on the supporting mechanism through the transmission plate.

Preferably, the clamping of the pipe and the bar is realized by arranging a clamping cylinder in the clamping mechanism and starting the clamping cylinder to clamp or loosen the pipe and the bar; the clamping mechanism can move transversely along the guide rail by arranging the cross rod, installing the guide rail below the cross rod and installing the clamping mechanism on the guide rail, so that the pipe bar can be driven to move transversely; the travel cylinder is arranged in the clamping mechanism to move the pipe and the bar in the vertical direction.

Preferably, a bottom plate and a transverse guide rail are arranged in the transverse translation mechanism, the transverse guide rail is arranged on the bottom plate, a bearing plate is clamped on the transverse guide rail, and the bearing plate is driven by a servo motor to move along the transverse guide rail, so that the bearing plate drives a cutter to transversely move; a base and a longitudinal guide rail are arranged in the longitudinal translation mechanism, a bottom plate is clamped on the longitudinal guide rail, the longitudinal guide rail is arranged on the base, and the bottom plate is driven by a servo motor to move along the transverse guide rail, so that the bearing plate and the cutter are driven by the bottom plate to longitudinally move; the product processing mechanism is provided with an air compression main shaft clamping seat, a locking mechanism is arranged in the air compression main shaft clamping seat, and the tube bar is clamped by the locking mechanism and is driven to rotate.

Preferably, more than two inner chip suction mechanisms and one outer chip suction mechanism are arranged in the chip suction mechanism, and a cutter is mounted on each inner chip suction mechanism to cut and process the pipe and the bar; moving an inner chip suction mechanism where a cutter being machined is located to an outer chip suction mechanism, communicating the inner chip suction mechanism with the outer chip suction mechanism, and sucking away chips generated inside the pipe and the bar when the cutter is cutting by vacuumizing the outer chip suction mechanism; and a blowing pipe is arranged on the scrap blowing mechanism, and an air outlet of the blowing pipe is aligned to the cutter, so that scraps generated outside the pipe bar during cutting are blown off.

Preferably, an inner air suction pipe and an inner positioning block are arranged in the inner scrap suction mechanism, an inner air hole is formed in the inner positioning block, one end of the inner air suction pipe is installed on the inner positioning block, and the inner air suction pipe is communicated with the inner air hole; an outer air suction pipe and an outer positioning block are arranged in the outer chip suction mechanism, an outer air hole is formed in the outer positioning block, one end of the outer air suction pipe is installed on the outer positioning block, and the outer air suction pipe is communicated with the outer air hole; install outer suction pipe's the other end on industrial dust collector, remove interior locating piece to outer locating piece department, and make interior gas port align with outer gas port, start industrial dust collector to outer suction pipe evacuation, under vacuum adsorption's effect, make interior locating piece and outer locating piece paste closely together and form seal structure to let outer suction pipe and interior suction pipe intercommunication, inhale the outer suction pipe with the piece in the interior suction pipe.

A high molecular pipe and bar cutting processing device is provided, wherein supporting mechanisms are arranged at the feeding position, the processing position and the discharging position of a pipe and bar, and a clamping mechanism is arranged above the supporting mechanisms to clamp and move the pipe and bar; the two ends of the supporting mechanism at the pipe and bar processing position are provided with a product processing mechanism, a scrap blowing mechanism and a scrap sucking mechanism, the product processing mechanism comprises an air compression main shaft clamping seat, a cutter, a transverse translation mechanism and a longitudinal translation mechanism, and the air compression main shaft clamping seat can clamp the pipe and bar and can drive the pipe and bar to rotate; the cutter is installed on the chip suction mechanism, the chip suction mechanism is installed on the transverse translation mechanism, and the transverse translation mechanism is installed on the longitudinal translation mechanism.

Preferably, the clamping mechanism comprises a stroke cylinder, a clamping disc, a piston, a transverse plate and a connecting rod, one end of the piston is arranged in the stroke cylinder, the other end of the piston is fixedly connected with the transverse plate, two ends of the bottom of the transverse plate are connected with the clamping cylinder through the connecting rod, and the lower end of the clamping cylinder is provided with the clamping disc; the supporting mechanism comprises a fixed cylinder, a support, a piston and a transverse plate, one end of the piston is arranged in the fixed cylinder, the other end of the piston is fixedly connected with the transverse plate, and the two ends of the top of the transverse plate are fixedly provided with the support.

Preferably, the transverse translation mechanism comprises a bottom plate and a transverse guide rail, a bearing plate is clamped on the transverse guide rail, and the transverse guide rail is arranged on the bottom plate; the longitudinal translation mechanism comprises a base and a longitudinal guide rail, a bottom plate is clamped on the longitudinal guide rail, and the longitudinal guide rail is arranged on the base; the bearing plate is provided with a fixed seat and an inner positioning block, the inner positioning block is bent into an L shape, one end of the inner positioning block is fixed on the bearing plate, the other end of the inner positioning block extends out of the bearing plate, and one end of the inner positioning block extending out of the bearing plate is provided with a through inner air hole; the outer side of the bottom plate is provided with a frame, an outer positioning block is arranged on the frame, and the outer positioning block is provided with a through outer air hole.

Preferably, the chip suction mechanism comprises an inner suction pipe, an outer suction pipe and a suction device, one end of the inner suction pipe is arranged on the inner positioning block, and the inner suction pipe is communicated with an inner air hole in the inner positioning block; one end of the outer air suction pipe is connected with the outer positioning block, the other end of the outer air suction pipe is connected with the air suction device, one end of the outer air suction pipe is installed on the outer positioning block, and the outer air suction pipe is communicated with an outer air hole in the outer positioning block; the other end of the inner air suction pipe penetrates through and extends out of the fixed seat, and the inner air suction pipe extends out of the top end of the fixed seat to be cut, so that a section of bearing head is formed at the top end of the inner air suction pipe, and a cutter is installed on the bearing head; the scrap blowing mechanism comprises an air blowing pipe, and an air outlet port of the air blowing pipe is arranged on the outer side of the cutter.

The beneficial technical effects of the utility model are as follows:

1. the clamping mechanism and the supporting mechanism are used for moving the pipe and the bar in the transverse and vertical directions, so that the automatic feeding and discharging of the pipe and the bar are realized. The automation of the tube and bar processing process is realized through the push-clamp mechanism, the supporting mechanism and the air compression main shaft clamping seat according to certain steps. Therefore, the efficiency of processing the polymer tube bar can be improved, the processing quality of products in the processing process is ensured, and the safe processing is ensured.

2. The cutting machining for positioning the pipe and the bar by the aid of the cutting tool for moving the cutting through the transverse translation mechanism and the longitudinal translation mechanism is carried out, and when the pipe and the bar are subjected to internal cutting machining, chips generated by internal cutting of the pipe and the bar are treated by the aid of the chip suction mechanism. When the outside cutting processing is carried out to the pipe rod, the bits that produce are handled to the outside cutting of pipe rod through setting up the bits mechanism that blows to prevent that the piece from influencing the normal processing of pipe rod, ensure the quality of pipe rod processing.

3. By arranging the scrap sucking mechanism and the scrap sucking mechanism, the problem of manual scrap blowing or manual scrap pulling is solved, the labor intensity is reduced, and the safety of production personnel is guaranteed; prevent the fish tail to the macromolecular material surface when unloading and clamping automatically, really realize the automatic intelligent manufacturing of polymer pipe rod processing.

Drawings

FIG. 1 is a schematic overall structure diagram according to a first embodiment;

FIG. 2 is a schematic perspective view of an automatic feeding mechanism;

FIG. 3 is an enlarged view of a portion of the area F in FIG. 1;

FIG. 4 is a schematic perspective view of the second feeding mechanism;

FIG. 5 is a schematic perspective view of the first embodiment with the automatic feeding mechanism removed;

FIG. 6 is a schematic perspective view of a middle tube rod feeding and discharging mechanism and an air compression spindle holder according to an embodiment;

FIG. 7 is a perspective view of the clamping mechanism of FIG. 6 from another perspective, with the clamping mechanism removed;

FIG. 8 is a schematic perspective view of a middle pushing and clamping mechanism according to an embodiment;

FIG. 9 is a schematic perspective view of a supporting mechanism according to a first embodiment;

FIG. 10 is a schematic perspective view of the product processing mechanism, the chip suction mechanism and the chip blowing mechanism;

FIG. 11 is a schematic perspective view of a chip suction mechanism;

FIG. 12 is an exploded view of the crumb absorbing mechanism;

in the figure: 01 box body, 011 plate holes, 02 hemming door, 021 transmission holes, 03 bearing plate, 04 transmission plate, 05 ejection cylinder, 06 ejector rod, 07 transmission rod, 08 bearing rod, 09 push rod, 11A first clamping mechanism, 11B second clamping mechanism, 111 stroke cylinder, 112 clamping cylinder, 113 clamping disc, 12A first pushing and clamping mechanism, 12B second pushing and clamping mechanism, 121 single-action cylinder, 122 cylinder joint, 13A first supporting mechanism, 13B second supporting mechanism, 13C third supporting mechanism, 131 fixing cylinder, 132 support, 141 cross rod, 142 guide rail, 151 air compression main shaft clamp seat, 152 locking mechanism, 21 base, 22 longitudinal guide rail, 31 bottom plate, 32 transverse guide rail, 33 frame, 34 outer positioning block, 35 gasket, 351 air hole, 41 air blowing pipe, 42 outer air suction pipe, 51 bearing plate, 52 fixing seat, 53 inner air suction pipe, 531 head, 54 suction pipe joint, 55 inner positioning block, 55 suction pipe, 56 cutters, 6 tubes and bars, 7 pistons, 8 transverse plates and 9 connecting rods.

Detailed Description

The utility model is further described with reference to the following examples and figures:

example one

As shown in fig. 1, 2, 3 and 4, the automatic feeding mechanism includes a box body, a hemming door, a receiving plate, a transmission plate and a pushing mechanism, the bottom of the box body is an inclined plane, and a plurality of tubes and bars to be processed are placed in the box body in order. The box rear end is provided with the hem door, and the lower extreme of hem door is outwards curled up, and has seted up the transmission hole between hem door lower extreme and the bottom half. When the tube or rod in the box closest to the transfer opening is not lifted, the tube or rod can roll out of the transfer opening. In order to ensure that the pipe bars in the box body can roll out one by one at regular time, the bottom of the box body is provided with a plate hole and a push-up mechanism is arranged below the box body. The upper surface of the transmission plate is also an inclined plane, the upper end of the bearing plate is connected with the bottom of the box body, and the lower end of the bearing plate is connected with the transmission plate.

The ejection mechanism comprises an ejection cylinder, an ejector rod, a transmission rod, a bearing rod and push rods, wherein the lower end of the ejector rod is connected with the ejection cylinder, the upper end of the ejector rod extends out of the ejection cylinder, the ejector rod is a piston of the ejection cylinder in the embodiment, the upper end of the ejector rod is fixedly connected with one end of the transmission rod, the other end of the transmission rod is fixedly connected onto the bearing rod, and the push rods are fixedly connected to two sides of the bearing rod respectively. And the bottom of the box body and the bearing plate are provided with through plate holes, and the push rod penetrates through the plate holes and is propped against the tube bar material closest to the transmission hole in the box body.

When the ejector rod in the ejection cylinder extends, the ejector rod drives the transmission rod, the bearing rod and the push rod to move upwards in sequence, so that the push rod jacks the pipe rod closest to the transmission hole upwards, the pipe rod is jacked at the curling edge at the lower end of the curling door, and the pipe rod in the whole box body is prevented from rolling towards the transmission hole. When the push rod in the push cylinder is shortened into the cylinder, the push rod drives the transmission rod, the bearing rod and the push rod to move downwards in sequence, so that the push rod is separated from the pipe rod closest to the transmission hole, and the pipe rod can roll out of the transmission hole at the moment, fall on the transmission plate and then roll down on the bracket 132 of the first support mechanism 13A. The ejection cylinder is connected with the PLC, and the ejector rods of the ejection cylinder can be controlled by the PLC to extend or shorten at regular time, so that the pipe rods are controlled to roll on the support 132 of the first support mechanism 13A at regular time one by one.

As shown in fig. 5, fig. 6 and fig. 7, the device for feeding and discharging polymer tube and rod materials includes a clamping mechanism, a supporting mechanism, a pushing and clamping mechanism and an air-compressing spindle holder 151. The number of the clamping mechanisms with the same structure is 2, namely a first clamping mechanism 11A positioned in the front and a second clamping mechanism 11B positioned in the rear. The upper ends of the 2 clamping mechanisms are clamped on the guide rails 142, and the guide rails 142 are fixedly arranged at the bottom of the cross bar 141. Each clamping mechanism is connected with a servo motor, and the servo motor drives the clamping mechanisms to move transversely along the guide rails 142. In this embodiment, all the servo motors are not shown in order to reduce the mutual shielding between the components. In the present embodiment, the transverse direction is the length direction of the cross bar 141, the longitudinal direction is the direction perpendicular to the transverse direction in the horizontal plane, and the length direction of the tube bar 6 in the figure is the longitudinal direction; the vertical direction is a direction perpendicular to the horizontal plane.

The number of the supporting mechanisms of the same structure is 3, namely a first supporting mechanism 13A at the feeding position, a second supporting mechanism 13B at the product processing position and a third supporting mechanism 13C at the discharging position. The 3 supporting mechanisms can both place the pipe and bar materials 6 and move the pipe and bar materials 6 in the vertical direction. The number of the air compression main shaft clamping seats 151 with the same structure is 2, each air compression main shaft clamping seat 151 is internally provided with a locking mechanism 152, and the locking mechanisms 152 can automatically clamp the pipe rod materials 6 and also can automatically release the pipe rod materials 6. Each air compression spindle clamping seat 151 is connected with a servo motor, and the servo motor drives the air compression spindle clamping seat 151 to move longitudinally. The air-compressing spindle holder 151 in this embodiment is commercially available and is of the model number JAP-52 (D). In this embodiment, the operation of each servo motor and the clamping and releasing operations of the locking mechanism 152 are controlled by a PLC, so as to achieve precise control of time and moving distance.

As shown in fig. 5 and 6, the clamping mechanism includes a stroke cylinder 111, a clamping cylinder 112, a clamping disc 113, a piston 7, a transverse plate 8 and a connecting rod 9, one end of the piston 7 is disposed in the stroke cylinder 111, the other end of the piston 7 is fixedly connected with the transverse plate 8, and two ends of the bottom of the transverse plate 8 are connected with the clamping cylinder 112 through the connecting rod 9. The stroke cylinder 111 and the clamping cylinder 112 are also connected with the PLC, and the PLC controls the moving time and the moving distance. The lower end of the clamping cylinder 112 is provided with two clamping discs 113, so that the two clamping discs 113 can automatically approach each other, the two clamping discs 113 can also automatically separate from each other to loosen the pipe and bar material 6, and the clamping cylinder 112 and the pipe and bar material 6 are moved in the vertical direction by controlling the extension and retraction of the piston 7 of the stroke cylinder 111.

As shown in fig. 5, 6 and 8, two pushing and clamping mechanisms are disposed on two sides of the second supporting mechanism 13B, wherein a first pushing and clamping mechanism 12A is disposed near the first supporting mechanism 13A, and a second pushing and clamping mechanism 12B is disposed near the second supporting mechanism 13B. The pushing and clamping mechanism comprises a single-action cylinder 121, a cylinder joint 122, a piston 7, a transverse plate 8 and a connecting rod 9, one end of the piston 7 is arranged in the single-action cylinder 121, the other end of the piston 7 is fixedly connected with the transverse plate 8, and two ends of the bottom of the transverse plate 8 are connected with the cylinder joint 122 through the connecting rod 9. The number of the push-clamping mechanisms with the same structure is 2, and the 2 push-clamping mechanisms are arranged on two sides of the second supporting mechanism 13B. 2 push away and press from both sides the mechanism and all be connected with PLC, when 2 single-action cylinders 121's piston 7 stretched out simultaneously, 2 single-action cylinders 121's cylinder joint 122 closed to the centre and can press from both sides tight tubular product 6, and 2 single-action cylinders 121's cylinder joint 122 is automatic to be separated each other and can be loosened tubular product 6.

As shown in fig. 6, 7 and 9, the supporting mechanism includes a fixed cylinder 131, a bracket 132, a piston 7 and a transverse plate 8, one end of the piston 7 is disposed in the fixed cylinder 131, the other end of the piston 7 is fixedly connected with the transverse plate 8, the bracket 132 is fixedly mounted at both ends of the top of the transverse plate 8, and the cross section of the top of the bracket 132 is V-shaped. The 3 supporting mechanisms with the same structure are all connected with the PLC, and can push the transverse plate 8 and the bracket 132 to move vertically upwards together when the piston 7 of the fixed air cylinder 131 extends out, and can drive the transverse plate 8 and the bracket 132 to move vertically downwards together when the piston 7 of the fixed air cylinder 131 retracts.

As shown in fig. 5 to 9, the polymer tube/bar processing process includes the following steps:

1. the first clamping mechanism 11A moves right above the first supporting mechanism 13A, the clamping cylinder 112 of the first clamping mechanism 11A moves downwards to the position of the tube and bar material 6 to clamp the tube and bar material 6 on the first supporting mechanism 13A, the clamping cylinder 112 of the first clamping mechanism 11A drives the tube and bar material to move upwards and return, then the tube and bar material 6 moves backwards along the guide rail 142 along with the first clamping mechanism 11A, and the tube and bar material 6 is moved right above the second supporting mechanism 13B.

2. First fixture 11A drives pipe rod 6 to move vertically downwards, and second supporting mechanism 13B rises vertically upwards simultaneously, and first fixture 11A places pipe rod 6 on second supporting mechanism 13B, then first fixture 11A loosens pipe rod 6, and first fixture 11A lower extreme rises the return vertically upwards.

3. The pushing and clamping mechanisms on the two sides of the second supporting mechanism 13B simultaneously and transversely draw close to the pipe and bar 6 and clamp the pipe and bar 6, and then the air compression main shaft clamping seats 151 on the two ends of the pipe and bar 6 draw close to the pipe and bar 6 along the longitudinal direction until the two ends of the pipe and bar 6 pass through the locking mechanisms 152 of the air compression main shaft clamping seats 151.

4. The locking mechanism 152 simultaneously clamps two ends of the tube and bar 6, then the second supporting mechanism 13B vertically moves downwards, and simultaneously the two pushing and clamping mechanisms are both far away from the tube and bar 6, so that the second supporting mechanism 13B and the pushing and clamping mechanisms are both separated from the tube and bar 6, and then the locking mechanism 152 drives the clamped tube and bar 6 to rotate, thereby starting to process the tube and bar 6.

5. After the tube bar 6 is processed, clamping the tube bar 6 by using the first clamping mechanism 11A again, moving the tube bar 6 to the third supporting mechanism 13C, clamping the tube bar 6 on the first supporting mechanism 13A by using the second clamping mechanism 11B, and moving the tube bar 6 above the second supporting mechanism 13B; the second gripper mechanism 11B repeats the operation of the first gripper mechanism 11A in step 2, and the second support mechanism 13B also repeats the operation in step 2, so that the second gripper mechanism 11B places the tubular bar 6 on the rack 132 of the second support mechanism 13B.

6. And finally, the first clamping mechanism 11A and the second clamping mechanism 11B retreat together until the first clamping mechanism 11A moves above the first supporting mechanism 13A, and the first clamping mechanism 11A and the second clamping mechanism 11B are reset.

In this embodiment, the first supporting mechanism 13A is a supporting mechanism at the feeding position, the second supporting mechanism 13B is a supporting mechanism at the product processing mechanism, and the third supporting mechanism 13C is a supporting mechanism at the feeding position. The product processing mechanism includes a pneumatic spindle holder 151 and a cutting device not shown in the drawings.

As shown in fig. 5 and 10, in order to process different shapes and different parts of the polymer tube bar, three different-shape processing cutters 56 are provided in the present embodiment. The three differently shaped cutters 56 are capable of cutting the exterior, interior and top of the bar as required by the particular operating conditions. Because the tube and bar are cut by rotation in the cutting process, the cut shape of the tube and bar is annular. In addition, since the tube and bar are only rotated and not moved during the cutting process, the cutting of different parts of the tube and bar is realized by moving the cutter 56.

For accurate position of moving the tool 56, a transverse translation mechanism and a longitudinal translation mechanism are provided in this embodiment, the transverse translation mechanism includes a bottom plate 31 and a transverse guide rail 32, the bearing plate 51 is clamped on the transverse guide rail 32, the transverse guide rail 32 is installed on the bottom plate 31, the servo motor is connected with the bearing plate 51, the bearing plate 51 is driven by the servo motor to move along the transverse guide rail 32, and thus the bearing plate 51 drives the three tools 56 to move transversely together. The longitudinal translation mechanism comprises a base 21 and a longitudinal guide rail 22, a bottom plate 31 is clamped on the longitudinal guide rail 22, the longitudinal guide rail 22 is installed on the base 21, a servo motor is connected with the bottom plate 31, the bottom plate 31 is driven by the servo motor to move along a transverse guide rail 32, and therefore the bottom plate 31 drives a bearing plate 51 and three cutters 56 to move longitudinally together. In order to prevent the components in fig. 1 from shielding each other and affecting the clear representation of the components in the figure, the servo motor and the connection structure thereof are not shown in fig. 1.

As shown in fig. 5, fig. 10 and fig. 11, in order to prevent filiform scraps generated during the machining of the polymer tube and bar material from winding around the periphery of the tube and bar material, or winding around the cutter 56, or falling into the inner hole of the tube and bar material, thereby affecting the normal machining of the next process, a scrap blowing mechanism and a scrap sucking mechanism are provided in this embodiment.

Three fixing seats 52 and three corresponding inner positioning blocks 55 are mounted on the bearing plate 51, and the inner positioning blocks 55 are bent into an L shape, so that the two bent plates are perpendicular to each other. One end of the inner positioning block 55 is fixed to the carrier plate 51, and the inner positioning blocks 55 fixed to the carrier plate 51 are distributed in a horizontal direction. The other end of the inner positioning block 55 extends out of the bearing plate 51, the inner positioning block 55 extending out of the other end of the bearing plate 51 is vertically erected, and a through inner air hole is formed at one end of the inner positioning block 55 extending out of the bearing plate 51. A C-shaped frame 33 is installed on the outer side of the bottom plate 31, the C-shaped frame 33 has three sides, and the C-shaped frame 33 is distributed in the horizontal direction. An outer positioning block 34 is installed at a middle position of the second side of the frame 33, and the outer positioning block 34 is perpendicular to the second side of the frame 33. The upper end of the outer positioning block 34 is provided with a through outer air hole, and the movable bearing plate 51 can enable the outer positioning block 34 to be attached to any one of the three inner positioning blocks 55. Since the height of the outer air hole is the same as or slightly different from the height of the three inner air holes, the inner air holes can communicate with the outer air holes when the inner positioning block 55 and the outer positioning block 34 are attached together.

The scrap suction mechanism comprises an inner suction pipe 53 and an outer suction pipe 42, in this embodiment, in order to facilitate the installation and fixation of the inner suction pipe 53 on the inner positioning block 55, a tubular elastic rubber suction pipe joint 54 is firstly vulcanized and fixed on the inner positioning block 55, and then one end of the inner suction pipe 53 is installed in the suction pipe joint 54 in an interference fit manner. Thus, one end of the inner air suction pipe 53 is installed on the inner positioning block 55, and the inner air suction pipe 53 is communicated with the inner air hole on the inner positioning block 55. One end of the outer air suction pipe 42 is installed and fixed on the outer positioning block 34, and the outer air suction pipe 42 is communicated with the outer air hole on the outer positioning block 34.

In this embodiment, one end of the outer suction pipe 42 is connected to the outer positioning block 34, and the other end of the outer suction pipe 42 is connected to a suction device, which is preferably an industrial vacuum cleaner. When the cutter 56 moves to the inside of the pipe and bar material to cut the inside of the pipe and bar material, chips are produced and fall into the pipe and bar material at any time during the cutting process. At this time, the industrial vacuum cleaner is started to vacuumize the outer suction pipe 42, and air and debris in the inner suction pipe 53 communicating with the outer suction pipe 42 are sucked into the outer suction pipe 42 by the vacuum negative pressure of the outer suction pipe 42. In order to clean the debris in the outer air suction pipe 42 in time, a sealed valve can be arranged at the bottom of the other end of the outer air suction pipe 42, and the valve can be opened after air suction is completed, so that the debris in the outer air suction pipe 42 falls into a garbage can below the valve.

As shown in fig. 9, 10, 11 and 12, in addition, in order to prevent the small gap between the outer positioning block 34 and the inner positioning block 55 from generating air leakage, an elastic gasket 35 may be disposed between the outer positioning block 34 and the inner positioning block 55, and an air hole 351 is formed in the middle of the gasket 35, so that the air hole 351 is communicated with both the outer air hole and the inner air hole. When vacuum pumping is performed, because the outer positioning block 34 and the inner positioning block 55 are both made of metal, under the adsorption action of vacuum negative pressure, because the gap between the outer positioning block 34 and the inner positioning block 55 is very small, the outer positioning block 34 and the inner positioning block 55 can be close to each other until being attached together, and the elastic gasket 35 can play a role in sealing and preventing air leakage.

The other end of each internal air suction pipe 53 penetrates through and extends out of a fixed seat 52, and the fixed seat 52 can play a role in adjusting the height of the internal air suction pipe 53 and supporting the internal air suction pipe 53. And the three inner air suction pipes 53 extend out of the top end of the fixed seat 52 for cutting, a section of bearing head 531 is cut at the top end of the inner air suction pipe 53, the section of the bearing head 531 is in an arc shape, and the cutter 56 is installed on the bearing head 531. The scrap blowing mechanism comprises an air blowing pipe 41 and an air compressor, one ends of the three air blowing pipes 41 are combined together to form one air blowing pipe 41, and the top end of the air blowing pipe 41 is connected to the air compressor. The air compressor is started to blow air flowing at high speed into the air blowing pipes 41, and the air flowing at high speed is respectively sprayed out from the air outlet ends of the three air blowing pipes 41. The air outlet port of the air blowing pipe 41 is arranged outside the cutter 56, so that the direction of the air flow can be adjusted, and the direction of the air flow is directly opposite to the part processed by the cutter 56. Therefore, when the cutter 56 cuts the outside of the pipe or rod, the high-speed air flow ejected from the air blowing pipe 41 blows the chips generated by cutting the outside of the pipe or rod onto the ground.

When the tip of the tube or bar is machined, chips are generated on the outside and inside of the tube or bar. Therefore, the scrap blowing mechanism and the scrap sucking mechanism are both required to be started at the moment, and the scrap treatment is carried out on the outer portion and the inner portion of the pipe bar simultaneously. The three cutters 56 in this embodiment, which are used for machining the outside of the pipe and bar, which are used for machining the top end of the pipe and bar, and what shape of the pipe and bar is cut, can be adjusted according to specific conditions.

In summary, the utility model uses the automatic feeding mechanism to convey the tube and bar material to the supporting mechanism, then uses the clamping mechanism to clamp the tube and bar material from the supporting mechanism and move the tube and bar material to the product processing mechanism, then uses the transverse translation mechanism and the longitudinal translation mechanism to move the cutter 56 to the position where the tube and bar material needs to be cut, and then uses the product processing mechanism to drive the tube and bar material to rotate to cut the tube and bar material; when the pipe and bar are subjected to internal cutting machining, the scraps generated by cutting the interior of the pipe and bar are treated by a scrap suction mechanism; when the pipe and bar are subjected to external cutting processing, scraps generated by external cutting of the pipe and bar are treated by a scrap blowing mechanism. Thereby realize the automatic feed and the ejection of compact and automatic accurate positioning and the automatic processing of pipe rod, in addition, can also carry out automatic clearance to the inside piece that produces with the outside of pipe rod to improve the efficiency of polymer pipe rod processing, prevent that the piece from influencing the normal processing of pipe rod, ensure the quality of pipe rod processing.

It will be apparent that modifications and variations are possible without departing from the principles of the utility model as set forth herein.

Claims

1. A method for cutting and processing polymer tube and bar materials is characterized in that the tube and bar materials are conveyed to a supporting mechanism by an automatic feeding mechanism, then the tube and bar materials are clamped from the supporting mechanism by a clamping mechanism and moved to a product processing mechanism, then a cutter is moved to a position of the tube and bar materials to be cut by a transverse translation mechanism and a longitudinal translation mechanism, and then the tube and bar materials are driven by the product processing mechanism to rotate to cut and process the tube and bar materials; when the pipe and bar are subjected to internal cutting machining, the scraps generated by cutting the interior of the pipe and bar are treated by a scrap suction mechanism; when the pipe and bar are subjected to external cutting machining, the scraps generated by the external cutting of the pipe and bar are treated by a scrap blowing mechanism; more than two inner chip absorbing mechanisms and one outer chip absorbing mechanism are arranged in the chip absorbing mechanism, and a cutter is arranged on each inner chip absorbing mechanism to cut and process the pipe and the bar; moving an inner chip suction mechanism where a cutter being machined is located to an outer chip suction mechanism, communicating the inner chip suction mechanism with the outer chip suction mechanism, and sucking away chips generated inside the pipe and the bar when the cutter is cutting by vacuumizing the outer chip suction mechanism; the scrap blowing mechanism is provided with an air blowing pipe, and an air outlet of the air blowing pipe is aligned to the cutter, so that scraps generated outside the pipe bar during cutting are blown off; an inner air suction pipe and an inner positioning block are arranged in the inner scrap suction mechanism, an inner air hole is formed in the inner positioning block, one end of the inner air suction pipe is installed on the inner positioning block, and the inner air suction pipe is communicated with the inner air hole; an outer air suction pipe and an outer positioning block are arranged in the outer chip suction mechanism, an outer air hole is formed in the outer positioning block, one end of the outer air suction pipe is installed on the outer positioning block, and the outer air suction pipe is communicated with the outer air hole; install outer suction pipe's the other end on industrial dust collector, remove interior locating piece to outer locating piece department, and make interior gas port align with outer gas port, start industrial dust collector to outer suction pipe evacuation, under vacuum adsorption's effect, make interior locating piece and outer locating piece paste closely together and form seal structure to let outer suction pipe and interior suction pipe intercommunication, inhale the outer suction pipe with the piece in the interior suction pipe.

2. The method of claim 1, wherein the tube or rod is placed in a box, the box is provided with a transmission hole, the rear of the box is provided with a transmission plate, and the box is provided with an ejection mechanism below; when the pushing mechanism is used for putting down the pipe rods in the box body, the pipe rods in the box body roll out of the transmission holes under the action of gravity and fall on the supporting mechanism through the transmission plate.

3. The method of claim 2, wherein the tube or rod is clamped by a clamping cylinder in the clamping mechanism, and the tube or rod is clamped or released by activating the clamping cylinder; the clamping mechanism can move transversely along the guide rail by arranging the cross rod, installing the guide rail below the cross rod and installing the clamping mechanism on the guide rail, so that the pipe bar can be driven to move transversely; the travel cylinder is arranged in the clamping mechanism to move the pipe and the bar in the vertical direction.

4. The method according to claim 3, wherein a bottom plate and a transverse guide rail are provided in the transverse translation mechanism, the transverse guide rail is mounted on the bottom plate, the bearing plate is engaged with the transverse guide rail, and the bearing plate is moved along the transverse guide rail by a servo motor, so that the bearing plate drives the cutter to move transversely; a base and a longitudinal guide rail are arranged in the longitudinal translation mechanism, a bottom plate is clamped on the longitudinal guide rail, the longitudinal guide rail is arranged on the base, and the bottom plate is driven by a servo motor to move along the transverse guide rail, so that the bearing plate and the cutter are driven by the bottom plate to longitudinally move; the product processing mechanism is provided with an air compression main shaft clamping seat, the air compression main shaft clamping seat is provided with a locking mechanism, and the tube bar is clamped by the locking mechanism and is driven to rotate.

5. A high-molecular pipe and bar cutting device is characterized in that supporting mechanisms are arranged at a feeding position, a processing position and a discharging position of a pipe and bar, and a clamping mechanism is arranged above the supporting mechanisms to clamp and move the pipe and bar; the two ends of the supporting mechanism at the pipe and bar processing position are provided with a product processing mechanism, a scrap blowing mechanism and a scrap sucking mechanism, the product processing mechanism comprises an air compression main shaft clamping seat, a cutter, a transverse translation mechanism and a longitudinal translation mechanism, and the air compression main shaft clamping seat can clamp the pipe and bar and can drive the pipe and bar to rotate; the cutter is arranged on the chip suction mechanism, the chip suction mechanism is arranged on the transverse translation mechanism, and the transverse translation mechanism is arranged on the longitudinal translation mechanism; the clamping mechanism comprises a stroke cylinder, a clamping disc, a piston, a transverse plate and a connecting rod, wherein one end of the piston is arranged in the stroke cylinder, the other end of the piston is fixedly connected with the transverse plate, two ends of the bottom of the transverse plate are connected with the clamping cylinder through the connecting rod, and the clamping disc is arranged at the lower end of the clamping cylinder; the supporting mechanism comprises a fixed cylinder, a bracket, a piston and a transverse plate, wherein one end of the piston is arranged in the fixed cylinder, the other end of the piston is fixedly connected with the transverse plate, and the bracket is fixedly arranged at both ends of the top of the transverse plate; the transverse translation mechanism comprises a bottom plate and a transverse guide rail, a bearing plate is clamped on the transverse guide rail, and the transverse guide rail is arranged on the bottom plate; the longitudinal translation mechanism comprises a base and a longitudinal guide rail, a bottom plate is clamped on the longitudinal guide rail, and the longitudinal guide rail is arranged on the base; the bearing plate is provided with a fixed seat and an inner positioning block, the inner positioning block is bent into an L shape, one end of the inner positioning block is fixed on the bearing plate, the other end of the inner positioning block extends out of the bearing plate, and one end of the inner positioning block extending out of the bearing plate is provided with a through inner air hole; the outer side of the bottom plate is provided with a frame, an outer positioning block is arranged on the frame, and the outer positioning block is provided with a through outer air hole.

6. The cutting processing device for the polymer tube and bar materials as claimed in claim 5, wherein the chip suction mechanism comprises an inner suction pipe, an outer suction pipe and a suction device, one end of the inner suction pipe is mounted on the inner positioning block, and the inner suction pipe is communicated with an inner air hole on the inner positioning block; one end of the outer air suction pipe is connected with the outer positioning block, the other end of the outer air suction pipe is connected with the air suction device, one end of the outer air suction pipe is installed on the outer positioning block, and the outer air suction pipe is communicated with an outer air hole in the outer positioning block; the other end of the inner air suction pipe penetrates through and extends out of the fixed seat, and the inner air suction pipe extends out of the top end of the fixed seat to be cut, so that a section of bearing head is formed at the top end of the inner air suction pipe, and a cutter is installed on the bearing head; the scrap blowing mechanism comprises an air blowing pipe, and an air outlet port of the air blowing pipe is arranged on the outer side of the cutter.