CN110405477B

CN110405477B - Metal pipe machining machine tool and machining method thereof

Info

Publication number: CN110405477B
Application number: CN201910819399.9A
Authority: CN
Inventors: 郭幸钢; 欧阳晓平; 郭远军
Original assignee: Yuanjun Heat Energy Power Technology Co ltd
Current assignee: Yuanjun Heat Energy Power Technology Co ltd
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2023-06-20
Anticipated expiration: 2039-08-31
Also published as: CN110405477A

Abstract

The invention discloses a metal tube processing machine tool, which is provided with a machine frame, wherein two ends of the machine frame are provided with processing devices, the middle part of the machine frame is provided with a clamp which is used for clamping and rotating a metal tube, the clamp comprises a left clamp and a right clamp which can be opened and closed and separated, a plurality of press rolls are arranged in the clamp and are arranged around the circumferential axis direction of the clamp to form a cavity for accommodating the metal tube, and the press rolls rotate themselves to clamp the metal tube when the left clamp and the right clamp are closed. The clamp can realize the operation modes of feeding at the upper end and discharging at the lower end, simplifies the feeding and discharging steps, and is simple and quick; and the machine tool adopts the combination of the frame and the clamp to process the metal pipe, so that the two ends of the metal pipe are processed simultaneously.

Description

Metal pipe machining machine tool and machining method thereof

Technical Field

The invention relates to the field of machining, in particular to a metal pipe machining machine tool and a machining method thereof.

Background

The machining of shaft parts and pipe parts generally has the requirement of coaxiality, and for products such as steel parts and iron parts, the outer diameter machining can be generally finished by adopting a double-top finish turning or finish grinding mode, and when two ends of a workpiece are machined, the workpiece must be turned around and machined twice. While metal parts cannot be realized by the above-mentioned processes, such as: and finishing the processing of the inner holes at the two ends of the metal pipe with the length of 100mm-650mm with high concentricity.

Clamping of the clamp is necessary during bar product processing. In the prior art, a circular clamping pipe for positioning and clamping round bar stock is more common, as the patent number CN101653897B discloses a pipeline clamp special for clamping a large pipeline, and is provided with at least two sections of basic arc strips, the basic arc strips are connected end to end in sequence to form a basic support ring, at least two rotating pins are arranged on the basic support ring, the rotating pins are connected with an arc rotating arm, one end of the arc rotating arm is fixedly connected with the rotating pin, and the other end of the arc rotating arm is provided with a movable pin mounting clamp. However, the process of clamping the workpiece or taking down the machined workpiece by the clamp is complicated, and the clamp cannot be applied to clamping of metal pipes with common thickness.

Disclosure of Invention

The invention aims to solve the technical problems that: the utility model provides a overcome prior art's not enough, provides a tubular metal resonator machine tool, this lathe can be used for the processing of ordinary size tubular metal resonator, and is equipped with anchor clamps on the lathe, and anchor clamps can both sides open, realize upper end feeding, lower extreme ejection of compact, have reduced the step of tubular metal resonator material loading unloading.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a tubular metal resonator machine tool, is equipped with the frame on the lathe, and the both ends of frame are equipped with processingequipment, and the frame middle part is equipped with anchor clamps, and anchor clamps are used for pressing from both sides tight and rotatory tubular metal resonator, and anchor clamps are including left anchor clamps and the right anchor clamps that can open and shut the separation, be equipped with a plurality of compression rollers in the anchor clamps, the compression roller sets up around anchor clamps circumferencial axis direction, forms the cavity that holds the tubular metal resonator, and compression roller self is rotatory, and when left anchor clamps and right anchor clamps were closed, press from both sides tight tubular metal resonator.

The scheme has the advantages that: the machine tool is provided with a processing device for processing the metal pipe, the processing device is arranged on the frame and can move by the frame to realize the processing of the two ends of the metal pipe, and the processing device is selected according to the shape required to be processed by the metal pipe; in addition, the clamp is in a combined form, so that feeding at the upper end and discharging at the lower part can be realized, and the steps of feeding and discharging are simplified.

Further, the left clamp and the right clamp are relatively provided with arc grooves formed by arranging compression rollers, the left clamp and the right clamp close the arc grooves to form a cavity, and a locking device for adjusting the cavity is arranged between the shell and the compression rollers. The metal tube is clamped by the clamp, and two ends of the metal tube extend out of the clamp, so that double-end machining of the metal tube is realized by using a machining device on the frame; in addition, the cavity for containing the metal tube is formed by combining the pressing rollers in the clamp, the pressing rollers are tube bodies of standard components, the pressing rollers can rotate, when the metal tube is placed in the cavity, the pressing rollers can polish rust and impurities on the surface of the tube body of the metal tube through rotation of the pressing rollers, and the bending part of the metal tube can be corrected to a certain extent due to the pressure of the pressing rollers on the metal tube.

Further, a transmission device for driving the compression roller to rotate is arranged in the clamp. The transmission device can adopt gear transmission, belt transmission or chain transmission, the transmission device drives the press roller to rotate, the press roller is in direct contact with the metal tube, and then the metal tube is driven to rotate, and the metal tube is detected and corrected while rotating, so that the improvement of the machining precision of the two ends of the workpiece is facilitated.

Further, fixed disks are arranged at two ends of the clamp, an outer circle of each fixed disk is connected with the shell, and an inner circle of each fixed disk is connected with the compression roller in a shaft mode. Preferably, the compression roller both ends are equipped with the link, and the inboard circle of fixed disk is equipped with the bearing, and the link is connected with the bearing axle, and the external diameter of bearing is less than the external diameter of compression roller, is convenient for compression roller and tubular metal resonator direct contact, and then improves polishing and correction effect to the tubular metal resonator.

Further, an adjusting device for adjusting the compression roller is arranged on the inner circle of the fixed disc; the adjusting device is provided with the buffer device, the buffer device adopts the elastic piece or the telescopic piece, when the metal tube is placed in the clamp cavity, the metal tube impacts the press roller, the buffer device has the buffer effect, the metal tube is prevented from damaging the press roller, and the service life of the press roller is prolonged.

Further, the left clamp and the right clamp are respectively provided with a movable shaft, the movable shafts are movably connected with a mounting rack arranged on the machine tool, and the outer wall of the clamp is also provided with a driving rod.

Preferably, the right clamp and the left clamp are symmetrically arranged, and the structure of the right clamp is the same as that of the left clamp. The right clamp and the left clamp are symmetrically arranged, the right clamp and the left clamp are driven by the driving rod respectively, the right clamp and the left clamp slide on the mounting frame, the right clamp and the left clamp are in butt joint with each other to form a cavity for accommodating the metal tube, the upper end feeding and the lower end discharging are separated, the right clamp and the left clamp are closed, the metal tube is clamped, and the two ends of the metal tube can be processed simultaneously. The driving rod comprises a first driving rod and a second driving rod, the first driving rod drives the right clamp to move relative to or opposite to the left clamp, one end of the second driving rod is connected with the clamp, the other end of the second driving rod is connected with the first driving rod, and the second driving rod drives the clamp to rotate by taking the movable shaft as an axis.

Further, the frame comprises frames which are arranged at two ends of the frame and are arranged oppositely, a processing device is arranged on the frames, and a heating device is further arranged on the frame. The frames at the two ends are arranged at the two ends of the clamp, and the processing device on each frame is responsible for the corresponding end part of the metal tube, so that the simultaneous processing of the two ends of the metal tube is realized; the heating device adopts a high-frequency induction heater, a heating ring is arranged on the high-frequency induction heater, and the heating ring is sleeved at the end part of the metal pipe for heating during heating.

Further, the frames are connected together through at least one screw rod, both ends of the screw rod are respectively provided with a forward thread and a reverse thread, and the frames move along the screw rod in opposite directions or back to back directions.

Preferably, the frame is a quadrilateral frame, and four included angles of the frame are provided with screw rods, and the screw rods connect the two frames together. The arrangement of the screw rod can adjust the distance between the two frames, the screw rod positively transmits, the two frames relatively move, and the distance between the two frames is shortened; the screw rod is reversed, the two frames move back to the back, and the distance between the two frames is pulled away.

Preferably, the frame is triangle-shaped frame, and three contained angle department is equipped with the lead screw, and the lead screw links together two frames, and the one end of lead screw is equipped with fixed frame, prevents that the lead screw from producing the displacement in the horizontal direction, the steady removal of triangle-shaped frame of being convenient for. The screw rod can be arranged into one or two according to the processing requirement.

Further, a driven wheel is fixedly arranged on the screw rod, a driving wheel is arranged at the bottom of the frame and driven by a driving motor, and the driven wheel is connected with the driving wheel by a belt.

The driving motor is a second driving motor, a transmission wheel and the second driving motor, so that automatic control of the screw rod is realized, and forward rotation and reverse rotation of the second driving motor are utilized to drive forward rotation and reverse rotation of the screw rod; meanwhile, the second driving motor is arranged, so that synchronous operation of each screw rod can be realized, and the stress of the frame is uniform.

A metal tube processing method comprises the following steps: the first step, a second driving motor is started, the distance between the first frame and the second frame is adjusted to be proper, so that a metal pipe is conveniently placed into the clamp, and then the second driving motor is closed;

secondly, starting a driving device, opening a clamp, and placing the metal tube into the clamp from above, wherein the length error of the two ends of the metal tube extending out of the clamp is not more than 10cm;

starting a second driving motor, adjusting the distance between the first frame and the second frame, enabling a machining device on the first frame and the second frame to be in contact with the metal pipe, selecting the type of a workpiece to be machined according to the specific selection of the machining device, and closing the second driving motor;

fourthly, starting a first driving motor to enable the press roller to rotate, and polishing, detecting and correcting the surface of the workpiece;

fifthly, starting a processing device to process two ends of a workpiece simultaneously; after the processing is finished, closing the processing device;

a sixth step of closing the first driving motor, starting the second driving motor, enabling the distance between the first frame and the second frame to be far, and closing the servo motor;

and seventh, starting the driving device, opening the clamp, discharging the processed metal pipe in the clamp, and simultaneously putting the unprocessed metal pipe into the clamp.

The invention has the beneficial effects that:

the clamp can realize the operation modes of feeding at the upper end and discharging at the lower end, simplifies the feeding and discharging steps, and is simple and quick; the machine tool adopts the combination of the frame and the clamp to process the metal pipe, so that the two ends of the metal pipe are processed simultaneously; the cavity for accommodating the metal tube is formed in the clamp through the compression roller, so that polishing, detection and correction of the metal tube can be realized.

Drawings

FIG. 1 is a schematic view of a metal pipe processing machine tool according to the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic view of three screw structures;

FIG. 4 is a schematic diagram of a four lead screw structure;

FIG. 5 is a schematic view of a screw structure;

FIG. 6 is a schematic diagram of a clamp structure;

FIG. 7 is a schematic view of the structure of the left or right clamp;

FIG. 8 is a schematic view of another configuration of a left clamp or a right clamp;

FIG. 9 is a schematic view of the timing belt connection of FIG. 8;

FIG. 10 is a schematic view of an adjusting device;

FIG. 11 is a schematic view of a locking mechanism;

FIG. 12 is a schematic view of another clamp construction;

FIG. 13 is a schematic view of another construction of the locking device;

FIG. 14 is a schematic view of yet another construction of the locking device;

FIG. 15 is a schematic view showing a locked state of the locking device of FIG. 14;

the device comprises a first guide rail, a second guide rail, a sliding groove, a 3-reinforcing rod, a 4-frame, a 5-screw rod, a 6-clamp, a 7-mounting frame, a 8-metal pipe, a 9-die mounting seat, a 10-second guide rail, a 11-belt, a 12-driven wheel, a 13-fixed frame, a 14-second driving motor, a 15-second driving wheel, a 16-machine tool, a 17-mounting seat, a 18-sliding sleeve, a 19-sliding rod, a 20-movable shaft, a 21-third driving motor, a 22-adjusting device, a 23-compression roller, a 24-bearing, a 25-fixed disc, a 26-shell, a 27-gear groove, a 28-first driving wheel, a 29-first driving motor, a 30-locking device, a 31-synchronous belt, a 32-second driving rod, a 33-first driving rod, a 34-inclined plane, a 35-sliding block, a 36-limited block, a 37-spring, a 38-fixed frame, a 39-spring base, a 40-spring seat, a 41-claw clip, a 42-hydraulic cylinder, a 43-handle, a 44-limited bar, a 45-bent rod, a 46-rotating shaft, a 47-movable plate, a 49-fixed plate, a 50-heating device and a 50-processing device.

Detailed Description

The invention is further described below with reference to the drawings and examples.

Reference is made to figures 1-15: a metal tube 8 machine tool 16 is provided with a machine tool 16, two ends of the machine tool 16 are provided with a machining device 50, the middle of the machine tool is provided with a clamp 6, the clamp 6 is used for clamping and rotating the metal tube 8, the clamp 6 comprises a left clamp and a right clamp which can be opened and closed and separated, a plurality of press rolls 23 are arranged in the clamp 6, the press rolls 23 are arranged around the circumferential axis direction of the clamp to form a cavity for accommodating the metal tube 8, the press rolls 23 rotate themselves, and when the left clamp and the right clamp are closed, the metal tube 8 is clamped.

In this embodiment, as shown in fig. 1, a first guide rail 1 is disposed on the machine tool 16, the first guide rail 1 is a parallel dual guide rail, a fixture is disposed between the dual guide rails, so that the metal tube 8 can go in and go out from the dual guide rail, a rack is disposed above the dual guide rail, the rack includes two frames 4, two frames 4 are disposed at two ends of the dual guide rail oppositely, the right frame 4 is defined as a first frame 4, the left frame 4 is defined as a second frame 4, the frame 4 is a rectangular frame 4, a long side is mounted above the first guide rail 1, a second guide rail 10 is disposed between two short sides, a processing device 50 is disposed on the second guide rail 10, the processing device 50 can slide on the second guide rail 10 through a die mounting seat 179, and the sliding device is a prior art and is not further described in this place.

In this embodiment, the first guide rail 11 is a U-shaped structure with a concave middle and convex two sides, the concave middle is defined as the chute 2, two pulley sheets are arranged below the first frame 4 and below the second frame 4 in a downward extending manner at the positions corresponding to the chute 2, and pulleys are arranged between the two pulley sheets, so that the first frame 4 and the second frame 4 can move on the first guide rail 1, and meanwhile, due to the action of the pulleys, the movement of the first frame 4 and the second frame 4 on the first guide rail 1 is very smooth, and the occurrence of clamping stagnation when the first frame 4 and the second frame 4 move is prevented. Simultaneously, all be equipped with the screw hole in four contained angles departments of two rectangle frames 4, wear to be equipped with lead screw 5 between the corresponding screw hole, link together two frames 4 through four lead screws 5.

In this embodiment, a driven wheel 12 is disposed at the end of each screw 5, and the rotation of the driven wheel 12 can drive the screw 5 to rotate. The lower part of the frame is provided with a second driving motor 14, the second driving motor 14 is connected with a second driving wheel 15 in a shaft way, the second driving motor 14 is started to drive the second driving wheel 15 to rotate, and the second driving wheel 15 is connected with driven wheels 12 on four screw rods 5 through a belt 11. The belt 11 adopts a toothed belt 11, so that the belt 11 is meshed with the driven wheel 12 and the second driving wheel 15, and the slipping condition is prevented. The belt 11 is arranged at the end part in a transmission way so as not to obstruct the feeding and discharging of the metal tube 8.

One end of the screw rod 5 provided with the driven wheel 12 is provided with a fixed frame 13, the bottom surface of the fixed frame 13 is fixedly welded on the first sliding rail, four screw rods 5 are in shaft connection with four corners of the fixed frame 13, and shaft sleeves are arranged at the joints and used for sealing the joints and preventing dust from entering. The connecting end of the screw 5 and the fixed frame 13 is not provided with threads and is penetrated into a bearing 24 arranged in the shaft sleeve, so that the screw 5 does not move when rotating in the fixed frame 13.

The second driving motor 14 is started to drive the second driving wheel 15 to rotate, the second driving wheel 15 drives the driven wheel 12 to rotate through the belt 11, so that the screw rod 5 rotates, but the screw rod 5 does not move due to the fixed frame 13, and therefore the distance between the first frame 4 and the second frame 4 is changed due to the rotation of the screw rod 5. The screw 5 is rotated in the forward or reverse direction by the forward or reverse rotation of the second driving motor 14, thereby pulling the distance between the first frame 4 and the second frame 4 closer or farther. For example, the driving motor can be a servo motor with the model number of Siemens 1FL6032-2AF21-1AB1, and the servo motor is started to enable the servo motor to rotate positively, and the screw rod 5 correspondingly rotates positively, so that the distance between the first frame 4 and the second frame 4 can be shortened; the servo motor is reversed and the screw 5 is correspondingly reversed, so that the distance between the first frame 4 and the second frame 4 becomes longer. During processing, the distance between the processing device 50 and the end of the metal tube 8 is adjusted, so that the end of the metal tube 8 is conveniently processed, and the simultaneous processing of the two ends of the metal tube 8 is realized.

In this embodiment, be equipped with stiffener 33 between the lead screw 5 that is located same vertical orientation, stiffener 33 can be two, installs the tip that stretches out first frame 4 at lead screw 5, and stiffener 3 can play spacing effect to lead screw 5, prevents that lead screw 5 from breaking away from frame 4, is convenient for improve the structural strength of lead screw 5 simultaneously, prevents that lead screw 5 atress excessively from taking place fracture or smooth silk.

In another embodiment, the difference from the above embodiment is that: as shown in fig. 3, the frames 4 are connected by three screw rods 5, the three screw rods 5 are distributed in a triangle shape, and the frames 4 are driven to move in opposite directions or back directions simultaneously by the driving of the second driving motor 14. In addition, the frame 4 can be a triangle frame 4 or an I-shaped frame 4, so that the stress stability of the frame 4 is improved, and the frame 4 can move stably on the first guide rail 1.

In another embodiment, the difference from the above embodiment is that: as shown in fig. 1 and 5, the frames 4 are connected through two screw rods 5, so that the production cost of the machine tool 16 is reduced; the frames 4 can be connected through a single screw rod 5, so that the metal tube 8 can be conveniently installed and placed.

In the embodiment, a heating device 49 is further arranged on the rack, the heating device 49 is used for processing the end of the metal pipe, the heating device 49 is a high-frequency induction heater, a heating ring is arranged on the high-frequency induction heater, and the heating ring is sleeved on the end of the metal pipe for heating during heating.

In this embodiment, the middle part of the frame is provided with a clamp, the clamp is arranged on the first guide rail 1 through the mounting seat 17, the mounting seat 17 is connected with the clamp through the mounting frame 7, a movable shaft 20 is arranged on the clamp, a sliding sleeve 18 is arranged on the mounting frame 7, a sliding rod 19 is arranged between the movable shaft 20 and the sliding sleeve 18, one end of the sliding rod 19 is sleeved in the sliding sleeve 18 and can slide in the sliding sleeve 18, the other end of the sliding rod 19 is in shaft connection with the movable shaft 20, the clamp can rotate by taking the movable shaft 20 as a center, and the clamp is used for clamping a workpiece, so that the processing device 50 is convenient for processing the workpiece.

As shown in fig. 7-8, the fixture comprises a shell 26 and a plurality of press rolls 23, the fixture comprises a left fixture and a right fixture, the left fixture and the right fixture are relatively provided with arc grooves, a plurality of press rolls 23 are arranged in the arc grooves, the press rolls 23 are distributed along the circumferential axis of the arc grooves, the arc grooves form clamping cavities for clamping workpieces when the left fixture and the right fixture are closed, the press rolls 23 are in direct contact with the workpieces, fixing plates 25 for fixedly supporting the press rolls 23 are arranged at two ends of the fixture, the fixing plates 25 are arc-shaped, the outer sides of the fixing plates 25 are welded with the shell 26, the inner sides of the fixing plates are connected with the press rolls 23 in a shaft mode, the press rolls 23 can rotate in arc grooves, an adjusting device 22 is arranged between the fixing plates 25 and the press rolls 23, and the service life of the press rolls 23 is convenient to improve.

As shown in fig. 10, the adjusting device 22 comprises a slide block 35 and a fixed frame 38, the slide block 35 is in sliding connection with the fixed frame 38, a buffer device is arranged between the slide block 35 and the fixed frame 38, the buffer device comprises a base arranged on the fixed frame 38, a spring base 39 is arranged at the upper end of the base, a spring seat 40 is arranged at the lower end of the slide block 35, a spring 37 is arranged between the spring base 39 and the spring seat 40, a limit block 36 is arranged on the fixed frame 38, and a bearing 24 seat is arranged at the upper end of the slide block 35; the two ends of the press roller 23 are provided with connecting ends which are in shaft connection with the bearing 24 seat, the outer diameter of the bearing 24 seat is smaller than that of the press roller 23, and the situation that the position of the bearing 24 seat is limited when the press roller 23 detects and corrects the metal tube 8 is avoided, so that the detection and correction precision cannot be achieved; be equipped with belt 11 groove between the link, belt 11 establishes in the belt 11 inslot on compression roller 23, avoids belt 11 and tubular metal resonator 8 to take place friction damage, is convenient for belt 11 life's improvement.

As shown in fig. 13-15, a locking device 30 is further arranged between the shell 26 and the press roller 23, the locking device 30 comprises a bending rod 45, one end of the bending rod 45 is connected with the shell 26 through a rotating shaft 46 and extends outwards, a handle 43 is arranged on the extending end, a claw clamp 41 is arranged at the other end of the bending rod, the claw clamp 41 is movably connected with the press roller 23, when the handle 43 is lifted upwards, the other end of the bending rod 45 is driven to press downwards, the claw clamp 41 pushes the press roller 23 to move downwards, the distance between the press rollers 23 is reduced, and therefore the clamping cavity is reduced to clamp the metal tube 8; the handle 43 limiting block 36 is arranged on the shell 26, and the handle 43 is lifted up to be limited by the limiting strips 44, so that the clamping cavity is prevented from loosening after clamping the metal tube 8, and the clamping stability of the metal tube 8 is improved conveniently.

Preferably, one end of the bending rod 45 is connected with the movable plate 47, the movable plate 47 is arc-shaped, a plurality of supporting rods corresponding to the press rollers 23 are arranged on the movable plate 47, the claw clips 41 are arranged at the ends of the supporting rods, the claw clips 41 are sleeved on the press rollers 23, when the handles 43 are lifted upwards, the bending rod 45 drives the press rollers 23 in the shell 26 to synchronously move downwards, the distance between the press rollers 23 is reduced, and therefore the clamping cavity is reduced to clamp the metal tube 8, the operation efficiency is improved conveniently, and damage to the press rollers 23 is reduced.

Preferably, the lower extreme of fly leaf 47 is equipped with the arc fixed plate 48 that matches with fly leaf 47, and fixed plate 48 both ends and casing 26 fixed welding are equipped with a plurality of through-holes on the fixed plate 48, and the bracing piece passes through-hole and compression roller 23 swing joint, and fixed plate 48 plays the guide effect to the bracing piece, plays the effect of protection to fly leaf 47, is convenient for locking device 30 structural strength and life's improvement.

In another embodiment, as shown in fig. 7, the locking device 30 of the pressing roller 23 is a hydraulic cylinder 42 or an air cylinder, in this embodiment, the driving rod is the hydraulic cylinder 42, one end of the hydraulic cylinder 42 is fixed on the housing 26, the other end is connected with the pressing roller 23 through a claw 41, the hydraulic cylinder 42 stretches out when in use, props against the pressing roller 23 to move into the cavity, the accommodating space of the cavity is gradually reduced, the metal tube 8 is clamped in the cavity, the belt 11 drives the pressing roller 23 to move without being influenced after clamping, the pressing roller 23 drives the metal tube 8 to rotate, the metal tube 8 is detected and corrected, and the consistency of the processed quality of each metal tube 8 is ensured.

The shell 26 is also internally provided with a transmission device for driving the press rolls 23 to rotate, as shown in fig. 8-9, the transmission device comprises a first driving wheel 28, a driving device and a synchronous belt 31, the driving device is a first driving motor 29, the synchronous belt 31 passes through gaps between the press rolls 23, the number of the press rolls 23 is singular, the synchronous belt 31 can pass through the lower ends of the press rolls 23 at the upper end and the lower end of a clamp, the driving device is convenient to drive the press rolls 23 to rotate, the press rolls 23 are provided with grooves of the belt 11, the synchronous belt 31 is convenient to be arranged in the grooves, the service life of the synchronous belt 31 is prolonged, meanwhile, the press rolls 23 are convenient to be in direct contact with the metal tube 8, and the first driving wheel 28 rotates under the driving of the driving device and drives the press rolls 23 to synchronously move through the belt 11.

The synchronous racks are arranged on both sides of the synchronous belt 31, and synchronous rack grooves matched with the synchronous belt 31 are arranged on the press roller 23 and the first driving wheel 28; the first driving motor 29 is a servo motor, the number of the press rollers 23 on the left clamp or the right clamp is singular, the synchronous belt 31 is wound around the upper part of the press rollers 23 on the upper end of the left clamp or the right clamp, sequentially passes through gaps between the press rollers 23 on the lower end, and finally is sleeved on the first driving wheel 28, the synchronous belt 31 is wound on the other clamp in the same way, and the press rollers 23 are synchronously rotated by the driving of the first driving motor 29.

In another implementation, as shown in fig. 7, the transmission device adopts gear transmission, and comprises a first driving wheel 28 and a first driving motor 29, wherein the first driving wheel 28 is a driving gear, the first driving motor 29 is a synchronous motor, a gear groove 27 matched with the driving gear is arranged on the pressing roller 23, the driving gear is meshed with the gear groove 27, the driving gear is driven by the synchronous motor to rotate to drive the pressing roller 23 to rotate, and each pressing roller 23 is matched with a synchronous motor, so that the pressing roller 23 can synchronously rotate.

The right clamp and the left clamp are symmetrically arranged, the inner structure of the right clamp is the same as that of the left clamp, the right clamp and the left clamp are tightly close together, namely, the inner part of the right clamp and the left clamp are combined into a cavity with an accommodating space, and the size of the cavity is determined according to the diameter of the metal tube 8 to be processed. In this embodiment, the length of the clamp may be 140cm, the metal tube 8 to be processed is 200cm, the distance between two ends of the metal tube 8 extending out of the clamp is not less than 20cm, and the length error between two ends of the metal tube 8 extending out of the clamp is not more than 10cm.

In this embodiment, as shown in fig. 6, a driving rod is arranged on the outer side of the clamp, the driving rod comprises a first driving rod 33 and a second driving rod 32, one end of the first driving rod 33 is in shaft connection with the middle part of the clamp, the other end of the first driving rod is fixed on the mounting frame 7, one end of the second driving rod 32 is in shaft connection with the upper end of the clamp, the other end of the second driving rod is in shaft connection with the first driving rod 33, when in use, the driving rod 33 is driven by a driving device, the left clamp and the right clamp are relatively moved to be closed, and the metal tube 8 placed in the cavity is clamped; when unloading the metal tube 8, the first driving rod 33 drives the left clamp and the right clamp to move back to open the clamp, the lower ends of the left clamp and the right clamp are provided with 45-degree inclined planes 34, so that the left clamp and the right clamp are conveniently opened and separated, the metal tube 8 is installed and placed, under certain conditions, when the left clamp and the right clamp are opened, the metal tube 8 can be attached in the groove and cannot fall, at the moment, the second driving rod 32 is driven to rotate towards the cavity direction by taking the joint of the first driving rod 33 as a rotating shaft 46, the groove of the left clamp and the groove of the right clamp are downward, and the metal tube 8 automatically falls down due to self gravity to finish unloading. The second driving rod 32 is an electric push rod, and when the second driving rod 32 is extended during unloading, the left clamp and the right clamp can be rotated, and the technology of the electric push rod is quite common, so that the technology is not described in detail. The driving means is a means for powering the first driving lever 33 and the second driving lever 32, and may be a means for converting electric energy into mechanical energy by a motor or the like.

In the embodiment, the left clamp and the right clamp are arranged separately, so that the upper end feeding and the lower end discharging can be realized, the discharging and discharging processes are simple, and the time is saved; the upper end feeding process can be that two workers pick up one end of the metal tube 8, move the metal tube 8 into an opened clamp, and open the clamp again; or the two ends of the metal tube 8 are clamped by the mechanical arm and put into the clamp, so that the labor is reduced, the mechanical operation is realized, and the mechanical arm is used for taking objects, which is a very common technology in the prior factory, and therefore, the mechanical arm is not further described herein.

The compression roller 23 that sets up in the anchor clamps can carry out self rotation under first driving motor 29's effect, and tubular metal resonator 8 is in the anchor clamps, through the rotation of compression roller 23 self, can polish the surface of tubular metal resonator 8, removes rust etc. in the tubular metal resonator 8 outside, has the clearance between the adjacent compression roller 23 again, and impurity such as rust etc. that polish the removal can fall to the anchor clamps lower part through the clearance, can discharge along with tubular metal resonator 8 together in the ejection of compact, has prevented that impurity from piling up in the anchor clamps, influences the operation of other spare part.

Meanwhile, the metal tube 8 is arranged in the cavity, the size of the metal tube 8 can be detected and corrected, and if the size of the metal tube 8 is overlarge or the bending amplitude is overlarge, the clamp does not conform to the size of the cavity, and workers can know that the clamp cannot fit the clamp; further, the metal tube 8 itself is seen straight, but in fact, there is a bending phenomenon, and when the metal tube 8 is polished, the bending portion of the metal tube 8 can be corrected by pressing the metal tube 8 by the pressing roller 23.

In addition, the first guide rail 1 and the machine tool 16 are designed to be hollow at the position corresponding to blanking, so that the metal pipe 8 can directly fall into a designed blanking area.

The implementation method of the embodiment comprises the following steps: the first step, the second driving motor 14 is started, the distance between the first frame 4 and the second frame 4 is adjusted to be proper, so that the metal pipe 8 is conveniently put into the clamp, and then the second driving motor 14 is closed;

and secondly, starting the driving device, opening the clamp, putting the metal tube 8 into the clamp from above, and enabling the two ends of the metal tube 8 to extend out of the clamp by no more than 10cm.

Third, starting the second driving motor 14, adjusting the distance between the first frame 4 and the second frame 4, enabling the machining device 50 on the first frame 4 and the second frame 4 to contact the metal tube 8, selecting the type of the workpiece to be machined according to the specific selection of the machining device 50, and then closing the second driving motor 14;

fourthly, starting a first driving motor 29 to enable the press roller 23 to rotate, and polishing, detecting and correcting the surface of the workpiece;

fifthly, starting the processing device 50 to process the two ends of the workpiece at the same time; after the machining is completed, the machining device 50 is closed;

a sixth step of turning off the first driving motor 29, starting the second driving motor 14, making the distance between the first frame 4 and the second frame 4 longer, and turning off the servo motor;

seventh, the driving means is started, the jig is opened, the machined metal tube 8 in the jig is discharged, and the unmachined metal tube 8 is simultaneously put into the jig.

The preferred embodiments of the present invention have been described in detail above, but it is apparent that the present invention is not limited to the above-described embodiments. Within the scope of the technical idea of the invention, various equivalent modifications can be made to the technical solution of the invention, which all belong to the protection scope of the invention. In addition, the technical features described in the above-described specific embodiments may be combined separately and independently as long as they are within the technical concept of the present invention.

Claims

1. The utility model provides a tubular metal resonator machine tool, is equipped with the frame on the lathe, and the both ends of frame are equipped with processingequipment, and the frame middle part is equipped with anchor clamps, and anchor clamps are used for pressing from both sides tight and rotatory tubular metal resonator, and anchor clamps include left anchor clamps and right anchor clamps that can open and shut the separation, its characterized in that: the clamp is internally provided with a plurality of press rolls, the press rolls are arranged around the circumferential axis direction of the clamp to form a cavity for accommodating the metal pipe, the press rolls rotate, and when the left clamp and the right clamp are closed, the metal pipe is clamped; the machine tool is provided with a first guide rail, the first guide rail is a double guide rail which is arranged in parallel, the clamp is arranged between the double guide rails, a rack is arranged above the double guide rail, the rack comprises two frames, the two frames are oppositely arranged at two ends of the double guide rail, the frames are provided with second guide rails, the second guide rails are provided with processing devices, the processing devices are arranged on the second guide rails through mold mounting seats, and the processing devices can slide on the second guide rails through driving mold mounting seats of a third driving motor; the fixture is arranged on the first guide rail through the mounting seat, the mounting seat is connected with the fixture through the mounting frame, the fixture comprises a shell and a plurality of press rolls, a transmission device for driving the press rolls to rotate is further arranged in the shell, a driving rod is arranged on the outer side of the fixture and comprises a first driving rod and a second driving rod, one end of the first driving rod is connected with the middle of the fixture in a shaft mode, the other end of the first driving rod is fixed on the mounting frame, one end of the second driving rod is connected with the upper end of the fixture in a shaft mode, the other end of the second driving rod is connected with the first driving rod in a shaft mode, the first driving rod is driven through the driving device in a shaft mode during use, and the left fixture and the right fixture are closed in relative movement to clamp a metal tube placed in the cavity.

2. A metal tube working machine as defined in claim 1 wherein: the left clamp and the right clamp are oppositely provided with arc grooves formed by arranging compression rollers, the left clamp and the right clamp close the arc grooves to form a cavity, and a locking device for adjusting the cavity is arranged between the shell and the compression rollers.

3. A metal tube working machine as defined in claim 2 wherein: the two ends of the clamp are provided with fixed discs, the outer circles of the fixed discs are connected with the shell, and the inner circles of the fixed discs are connected with the compression rollers in a shaft mode.

4. A metal tube working machine as claimed in claim 3, wherein: an adjusting device for adjusting the compression roller is arranged in the fixed disc.

5. A metal tube working machine as claimed in claim 1 or claim 2, wherein: the left clamp and the right clamp are respectively provided with a movable shaft, and the movable shafts are movably connected with a mounting frame arranged on the machine tool.

6. A metal tube working machine as defined in claim 1 wherein: and a heating device is also arranged on the frame.

7. A metal tube working machine as defined in claim 1 wherein: the frame is connected together through at least one lead screw, and both ends of the lead screw are respectively provided with a forward thread and a reverse thread, and the frame moves along the lead screw in opposite directions or back to back directions.

8. A metal tube working machine as defined in claim 7 wherein: the screw rod is fixedly provided with a driven wheel, the bottom of the frame is provided with a driving wheel, the driving wheel is driven by a driving motor, and the driven wheel is connected with the driving wheel by a belt.

9. A method of machining a metal pipe using the machine tool according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:

the first step, a second driving motor is started, the distance between the first frame and the second frame is adjusted to be proper, so that a metal pipe is conveniently placed into the clamp, and then the second driving motor is closed;