CN219649176U - Cutting and chamfering device for processing zirconium alloy pipe bar - Google Patents

Abstract

The utility model discloses a cutting chamfering device for processing zirconium alloy pipe bars, which comprises an upper material frame and a lower material frame which are sequentially and longitudinally arranged, wherein processing execution mechanisms are symmetrically arranged on the left side and the right side of the upper material frame and the lower material frame, a transmission mechanism for conveying workpieces by the processing execution mechanisms on the left side and the right side is arranged between the upper material frame and the lower material frame, and a material transferring mechanism is arranged between the transmission mechanism and the lower material frame and used for transferring processed workpieces to the lower material frame; in particular, a sizing unit is arranged in the processing executing mechanism, and the sizing unit can set the distance according to the length to be cut off of the workpiece to be processed, so that the processing precision is ensured. According to the cutting and chamfering device, through the cooperative matching of the mechanisms, the two ends of the workpiece can be accurately positioned and cut and chamfering is carried out, so that various defects caused by the traditional lathe machining are avoided, the production efficiency is greatly improved, meanwhile, the problem of surface quality caused by manual intervention is reduced, and the batch production is facilitated.

Description

Cutting and chamfering device for processing zirconium alloy pipe bar

Technical Field

The utility model belongs to the technical field of auxiliary processing equipment for zirconium alloy pipes and bars, and particularly relates to a cutting and chamfering device for processing zirconium alloy pipes and bars.

Background

Zirconium alloy has a very low thermal neutron absorption cross section and has excellent nuclear and corrosion resistance properties, so zirconium alloy pipe rods are often used for nuclear fuel assemblies and other structures in a water-cooled reactor and are important nuclear power reactor fuel cladding materials.

Based on the nuclear application, extremely high requirements are put on the straightness, surface quality, outer diameter dimension precision, end surface quality and physical and chemical properties of the zirconium alloy pipe and bar. In the production process, the pipe bar is straightened, roughly grinded and finely grinded for many times to reach the required size requirement and quality requirement. In addition, in order to avoid flaws in the zirconium alloy pipe rod, a series of nondestructive testing is required to be carried out on the zirconium alloy pipe rod after production, and because nondestructive testing dead zones exist at the head end and the tail end of the pipe rod, a large number of cutting and chamfering operations are required to be carried out on the detection dead zone sections at the two ends of the pipe rod. At present, because the processing precision of common cutting equipment is lower and does not have the chamfer function, therefore zirconium alloy pipe stick material cuts off and chamfer is generally processed on the lathe and is accomplished, and the operating personnel need accomplish processes such as material loading, centre gripping, tool setting, cutting off, tool changing, chamfer and unloading one by one during processing, and machining efficiency is low, intensity of labour is big, and the technical level requirement to operating personnel is higher, if carelessly, touch with the lathe easily takes place in the unloading, causes pipe stick material surface scratch, clamp to hinder and bump easily in centre gripping and feed course of working, and product quality risk is high.

In view of the above, the present inventors have proposed a cutting and chamfering device for processing zirconium alloy pipe bar materials to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the cutting and chamfering device for processing the zirconium alloy pipe bar, which has novel structural design, realizes cutting and chamfering of two ends of the zirconium alloy pipe bar through the cooperative matching of various mechanisms, can accurately limit the cutting length through a sizing unit, avoids the pipe bar from tilting through a pinch roller mechanism, protects the straightness of a workpiece and is convenient for clamping by an air compression main shaft clamping seat, and compared with the traditional lathe processing, the device greatly reduces various quality problems caused by manual operation, ensures processing precision, improves production efficiency and is convenient for batch production.

The utility model aims at solving the problems by the following technical scheme:

the cutting and chamfering device for processing the zirconium alloy pipe bar comprises an upper material frame and a lower material frame which are sequentially and longitudinally arranged, wherein processing execution mechanisms are symmetrically arranged on the left side and the right side of the upper material frame and the lower material frame, a transmission mechanism for conveying workpieces to the processing execution mechanisms on the left side and the right side is arranged between the upper material frame and the lower material frame, a material transferring mechanism is arranged between the transmission mechanism and the lower material frame, and the material transferring mechanism is used for transferring the processed workpieces on the transmission mechanism to the lower material frame;

the processing executing mechanism comprises a clamping rotating unit, a cutting chamfering unit and a sizing unit which are sequentially arranged at intervals in the direction of a transmission extension line of the transmission mechanism;

the clamping and rotating unit comprises an air compression main shaft clamping seat, a synchronous motor and a first synchronous belt, wherein the air compression main shaft clamping seat is used for clamping a workpiece to be processed, a main shaft of the air compression main shaft clamping seat is connected with a driving wheel of the synchronous motor through the first synchronous belt, the main shaft of the air compression main shaft clamping seat is coaxial with the workpiece to be processed on the transmission mechanism, and the synchronous motor is used for driving the workpiece to be processed clamped by the air compression main shaft clamping seat to rotate;

the cutting and chamfering unit comprises a first servo motor, a first ball screw and a first sliding table, wherein the first ball screw is connected with the first sliding table, a first fixing seat provided with a cutting tool and a second fixing seat provided with a chamfering tool are correspondingly arranged at the front and rear positions of a workpiece to be machined in the radial direction, and the first sliding table is driven by the first servo motor to move along the front and rear directions so as to cut and chamfer the workpiece to be machined;

the sizing unit is used for limiting the cutting distance of the workpiece to be processed.

Further, the sizing unit comprises a second servo motor, a second ball screw, a second sliding table and a sensor, wherein the second sliding table is arranged on the upper part of the second ball screw, the second ball screw is connected with the second servo motor, the second sliding table is driven by the second servo motor to move along the left-right direction, the second sliding table is sequentially connected with a contact block, a spring, a sliding shaft and an induction block from left to right, the contact block is coaxial with a workpiece to be processed, and the sensor is arranged at the position of a limit point of the induction block behind the second sliding table;

the sensor is linked with the air compression main shaft clamping seat and the second servo motor, after the sensor senses the sensing block, the air compression main shaft clamping seat clamps and fixes the workpiece to be processed, and meanwhile, the second servo motor reverses to enable the sizing unit to be far away from the workpiece to be processed.

Further, a plurality of same feeding execution mechanisms are uniformly distributed at the top of the feeding frame along the length direction of the feeding frame, each feeding execution mechanism comprises an inclined cross beam for temporarily storing workpieces to be processed, a baffle block is arranged on the surface of each inclined cross beam, a material stirring unit is arranged on the side face of each inclined cross beam and used for lifting a single workpiece to be processed to pass through the baffle block, and the workpieces to be processed are rolled onto a transmission mechanism.

Further, the stirring unit comprises a stirring cylinder vertically arranged and an inclined block fixedly arranged at the top of a piston rod of the stirring cylinder, and the inclined block is positioned right below a workpiece to be processed and clinging to the baffle block.

Further, the included angle alpha between the inclined cross beam and the horizontal plane is 10-15 degrees.

Further, the transmission mechanism comprises a plurality of transmission units connected in series, each transmission unit comprises a first transmission shaft, a gear reverser, a first coupler and a transmission wheel for bearing a workpiece, the first coupler is used for connecting the first transmission shaft with the gear reverser, the transmission wheel is arranged on a main shaft of the gear reverser, the plurality of first transmission shafts connected in series form a long shaft, and the end part of the long shaft is connected with a third servo motor.

Further, the cutting chamfering device further comprises two sets of pinch roller mechanisms, and the pinch roller mechanisms are respectively arranged at the head end and the tail end of the transmission unit;

the pinch roller mechanism comprises an inverted L-shaped supporting beam, a telescopic cylinder is arranged at the horizontal end part of the inverted L-shaped supporting beam, a bearing seat is connected with the end part of a piston rod below the telescopic cylinder, a rotating shaft is connected to the bearing seat through a bearing and a fixing nut, a pinch roller is connected to one end of the rotating shaft extending out of the bearing seat through a clamp spring, and the pinch roller is located right above a conveying wheel and used for preventing a workpiece to be processed from warping when extending out of the conveying mechanism.

Further, the material turning mechanism comprises a rotating unit and a material turning unit;

the rotating unit comprises a plurality of second transmission shafts and second couplings, the second transmission shafts are connected in series through the second couplings to form long shafts, and the end parts of the long shafts are connected with fourth servo motors;

and each second transmission shaft is provided with a material turning unit, and the material turning units transfer the processed workpiece on the transmission mechanism to the blanking frame under the driving of the rotation units.

Further, the material turning unit comprises a connecting plate, a first synchronizing wheel, a second synchronizing belt, a V-shaped supporting block and a third transmission shaft, wherein one ends of the first synchronizing wheel and the connecting plate are sleeved on the second transmission shaft, the other end of the connecting plate is rotationally connected with the third transmission shaft through a bearing, the second synchronizing wheel and the V-shaped supporting block are respectively arranged on two sides of the third transmission shaft and positioned on the connecting plate, the second synchronizing wheel is connected with the first synchronizing wheel through the second synchronizing belt, and the V-shaped opening of the V-shaped supporting block is upward.

Further, a nylon plate is laid on the surfaces, which are contacted with the workpiece, of the feeding frame, the discharging frame, the processing executing mechanism, the transmission mechanism and the material transferring mechanism.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides a cutting chamfering device for processing zirconium alloy pipe bars, which mainly comprises a feeding frame, a transmission mechanism, a processing executing mechanism, a material transferring mechanism and a discharging frame, wherein unprocessed or processed workpieces are correspondingly conveyed into or out of the processing executing mechanism through the transmission mechanism, a clamping rotating unit, a cutting chamfering unit and a sizing unit are respectively arranged in the processing executing mechanism, the sizing unit is used for accurately positioning the length of the workpiece to be processed to be cut off, the clamping rotating unit and the cutting chamfering unit form a role similar to a lathe, and particularly, the cutting chamfering unit is respectively provided with a first fixing seat capable of being provided with a cutting tool and a second fixing seat provided with a chamfering tool on two sides of the workpiece on a sliding table, so that the cutting and chamfering of the workpiece can be completed by one-time back and forth movement through a servo motor and a ball screw, the time consumed by changing the tool is avoided, and the processing executing mechanism symmetrically arranged on two sides of the workpiece further avoids the time consumed by turning the workpiece. Compared with the traditional lathe machining, the machining efficiency is remarkably improved, meanwhile, the device can basically realize automatic operation, the problem of surface quality caused by manual intervention is reduced, and nylon plates are paved on the surfaces of the nylon plates in direct contact with workpieces, so that the surface quality of the workpieces is effectively guaranteed, and the device is convenient for batch production.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate principles of the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic view showing the overall structure of a cutting chamfering device of the present utility model;

FIG. 2 is a schematic diagram of a loading actuator according to the present utility model;

FIG. 3 is a schematic diagram of a pinch roller mechanism according to the present utility model;

FIG. 4 is a schematic view of a process actuator according to the present utility model;

FIG. 5 is a schematic view of the structure of the sizing unit of the present utility model;

FIG. 6 is a schematic diagram of a material transferring mechanism according to the present utility model; wherein, (a) is a right side structure schematic diagram, and (b) is a front view structure schematic diagram.

Wherein: 1 is a feeding frame; 11 is a feeding executing mechanism; 111 is an inclined cross beam; 112 is a baffle block; 113 is a kick-out unit; 1131 is a stirring cylinder; 1132 is a sloping block; alpha is the included angle between the inclined cross beam and the horizontal plane; a is a workpiece to be processed;

2 is a blanking frame;

3 is a processing executing mechanism; 30 is a machining execution operation table; 31 is a clamping and rotating unit; 32 is a cutting chamfering unit; 33 is a sizing unit; 311 is an air compression main shaft clamping seat; 312 is a synchronous motor; 313 is a synchronous belt; 321 is a first servo motor; 322 is a first ball screw; 323 is a first sliding table; 324 is a first fixing seat; 325 is a second fixing seat; 331 is a second servo motor; 332 is a second ball screw; 333 is a second sliding table; 334 is a sensor; 335 is a contact block; 336 is a spring; 337 is a sliding shaft; 338 is the sensing block;

4 is a transmission mechanism; 40 is a transmission stand; 41 is a first drive shaft; 42 is a gear reverser; 43 is a first coupling; 44 is a transfer wheel; 45 is a third servo motor;

5 is a material transferring mechanism; 50 is a material transferring machine seat; 51 is a rotation unit; 52 is a turning unit; 511 is a second drive shaft; 512 is a second coupling; 513 is a fourth servomotor; 521 is a connecting plate; 522 is a first synchronizing wheel; 523 is a second synchronizing wheel; 524 is a second timing belt; 525 is a V-shaped supporting block; 526 is a third drive shaft;

6 is a pinch roller mechanism; 61 is an inverted L-shaped support beam; 62 is a telescopic cylinder; 63 is a bearing seat; 64 is a bearing; 65 is a fixed nut; 66 is the rotation axis; 67 is a clamp spring; 68 is a pinch roller.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of devices that are consistent with aspects of the utility model that are set forth in the following claims.

The present utility model will be described in further detail below with reference to the drawings and examples for better understanding of the technical solutions of the present utility model to those skilled in the art.

Referring to fig. 1 to 6, the utility model provides a cutting chamfering device for processing zirconium alloy pipe bars, which comprises an upper material frame 1 and a lower material frame 2 which are sequentially and longitudinally (left and right in the embodiment are longitudinal, front and rear are transverse), wherein processing executing mechanisms 3 are symmetrically arranged at the left side and the right side of the upper material frame 1 and the lower material frame 2, a transmission mechanism 4 for conveying workpieces by the processing executing mechanisms 3 at the left side and the right side is arranged between the upper material frame 1 and the lower material frame 2, a material turning mechanism 5 is arranged between the transmission mechanism 4 and the lower material frame 2, and the material turning mechanism 5 is used for transferring processed workpieces on the transmission mechanism 4 to the lower material frame 2. Through the arrangement, under the cooperation of all mechanisms, high-quality automatic processing of precisely cutting off and chamfering the two ends of the zirconium alloy pipe bar can be realized, the time wasted by feeding, discharging, tool setting, turning around, tool changing and the like one by one is reduced, the surface quality problem caused by manual intervention in various processes is avoided, the production efficiency is remarkably improved, and the mass production operation is facilitated.

Specifically, in the embodiment of the present utility model, a plurality of identical feeding execution mechanisms 11 are uniformly distributed on the top of the feeding frame 1 along the length direction thereof, as shown in fig. 2, the feeding execution mechanisms 11 include an inclined beam 111 for temporarily storing a workpiece a to be processed, the inclined beam 111 is designed to have a slope with a certain gradient, so that the weight of the workpiece is used for feeding, and the height of the inclined beam 111 near one end of the conveying mechanism 4 is lower than the height far from one end of the conveying mechanism 4, preferably, the included angle α between the inclined beam 111 and the horizontal plane is 10 ° to 15 °; the surface of the inclined beam 111 is provided with a baffle block 112, and a material stirring unit 113 is arranged on the side surface of the inclined beam 111, and the material stirring unit 113 is used for lifting a single workpiece A to be processed beyond the baffle block 112 so as to roll the workpiece A to be processed onto the conveying mechanism 4.

The material stirring unit 113 comprises a vertically arranged material stirring cylinder 1131 and an inclined block 1132 fixedly arranged at the top of a piston rod of the material stirring cylinder 1131, wherein the inclined block 1132 is positioned right below a workpiece A to be processed, which is tightly attached to the material blocking block 112. During feeding, the material stirring cylinder 1131 is lifted, the inclined surface of the inclined block 1132 contacts the workpiece A to be processed, and the only workpiece A to be processed is lifted to pass through the material blocking block 112 so as to roll on the transmission mechanism 4; after the material stirring is completed, the stirring cylinder 1131 is contracted, and the rest of the workpiece A to be processed rolls to the material blocking block 112 under the action of gravity and the inclined plane of the inclined beam 111, and waits for the next action of the stirring cylinder 1131 to perform feeding operation.

Because the zirconium alloy pipe bar is relatively long, in order to ensure the straightness and stability of the machined workpiece a in the transmission process, the transmission mechanism 4 in the embodiment of the utility model is formed by connecting a plurality of identical transmission units in series and is fixedly arranged on the transmission base 40, and specifically as shown in fig. 1, each transmission unit comprises a first transmission shaft 41 (a short shaft), a gear reverser 42, a first coupler 43 and a transmission wheel 44 for bearing the workpiece, the first coupler 43 connects the first transmission shaft 41 with the gear reverser 42, the transmission wheel 44 is arranged on a main shaft of the gear reverser 42, the transmission wheel 44 is just arranged below the workpiece a to be machined on the side of the lower end of the inclined beam 111, a plurality of first transmission shafts 41 connected in series form a coaxial long shaft, and any end part of the long shaft is connected with a third servo motor 45, and the forward and backward rotation of the third servo motor 45 is controlled to drive the whole long shaft to forward and backward rotate, so as to drive the plurality of transmission wheels 44 to forward and backward rotate at the same rotation speed, so as to realize the supporting bearing and left and right conveying of the workpiece.

When the cutting chamfering device is used for machining zirconium alloy bars (compared with a tube, the zirconium alloy bars are heavier), when the conveying wheels 44 in the conveying mechanism 4 convey the workpieces A to be machined to the machining executing mechanisms 3 on the left side and the right side, the first ends and the last ends of the zirconium alloy bars are easily bent downwards due to the fact that the influence of gravity is large after the workpieces are separated from the conveying wheels 44, so that the whole workpieces are tilted, the workpieces are not easy to enter the machining executing mechanism 3, clamping cannot be conducted on the workpieces, and straightness of the zirconium alloy bars is affected. That is, the pinch roller mechanism 6 plays a role of the auxiliary transmission mechanism 4 to avoid a defect that the workpiece is liable to tilt when the first and the last ends of the workpiece are separated from the transmission wheel 44.

As shown in fig. 1 and 4, the machining actuator 3 according to the embodiment of the present utility model is fixedly disposed on the machining operation table 30, and includes a clamping rotation unit 31, a cutting chamfering unit 32, and a sizing unit 33, which are sequentially disposed at intervals in the direction of the transmission extension line of the transmission mechanism 4. The clamping and rotating unit 31 specifically includes an air-compression spindle holder 311 for clamping a workpiece a to be processed, a synchronous motor 312, and a first synchronous belt 313, wherein a spindle of the air-compression spindle holder 311 is connected with a driving wheel of the synchronous motor 312 through the first synchronous belt 313, the synchronous motor 312 drives the workpiece a to be processed to rotate, and the spindle of the air-compression spindle holder 311 is coaxial with the workpiece a to be processed on the transmission mechanism 4, and the air-compression spindle holder 311 used in the utility model is a jam series spindle holder. Through the arrangement, the workpiece A to be processed is fed and passes through the air compression main shaft clamping seat 311 under the action of the conveying mechanism 4, after the workpiece A to be processed reaches the target position, the air compression main shaft clamping seat 311 clamps and fixes the workpiece, the synchronous motor 312 is started, and the workpiece A to be processed clamped by the air compression main shaft clamping seat 311 is driven to rotate under the action of the synchronous belt 313.

The cutting and chamfering unit 32 is located between the clamping and rotating unit 31 and the sizing unit 33, the cutting and chamfering unit 32 comprises a first servo motor 321, a first ball screw 322 and a first sliding table 323, the first ball screw 322 is connected with the first sliding table 323, a first fixing seat 324 which is located at the front and back positions of the workpiece A to be machined in the radial direction and is correspondingly provided with a cutting tool, and a second fixing seat 325 which is provided with a chamfering tool, and the first sliding table 323 is driven by the first servo motor 321 to move along the front and back directions so as to cut and chamfer the workpiece A to be machined.

It should be noted that, during the cutting process of the workpiece a to be processed, the two cutters simultaneously move towards the Y axis + direction under the action of the first servo motor 321, and the cutting cutter contacts the workpiece a to be processed to achieve the purpose of cutting the workpiece a to be processed; after cutting, the two cutter assemblies move towards the Y-axis direction under the action of the servo motor, and at the moment, the chamfering cutter gradually approaches the end face of the workpiece A to be processed, so that deburring and chamfering are carried out on the end face of the workpiece A.

In order to further improve the precision and the automation degree of the cutting and chamfering device of the present utility model, the machining executing mechanism 3 further provides a sizing unit 33 located at the outermost side of the cutting and chamfering unit 32, specifically as shown in fig. 1, 4 and 5, the sizing unit 33 includes a second servo motor 331, a second ball screw 332, a second sliding table 333 and a sensor 334, the second sliding table 333 is installed on the upper portion of the second ball screw 332, the second ball screw 332 is connected with the second servo motor 331, the second sliding table 333 is driven by the second servo motor 331 to move in the left-right direction, a contact block 335, a spring 336, a sliding shaft 337 and an induction block 338 are sequentially connected on the second sliding table 333 from left to right, the contact block 335 is coaxial with the workpiece a to be machined, and the sensor 334 is installed to the position of the induction block 338 at the limit point behind the second sliding table 333.

It should be noted that, in this embodiment, the sensor 334 is linked with the air-compression spindle holder 311, the second servo motor 331 and the pinch roller mechanism 6, and the workpiece a to be processed gradually contacts and pushes the contact block 335, the sliding shaft 337 and the sensing block 338 to move along the feeding direction of the workpiece a to be processed until reaching the rear limit point of the sizing unit 33, and since the sensor 334 is mounted at the position of the rear limit point of the sizing unit 33, after the sensor 334 senses the sensing block 338, the air-compression spindle holder 311 immediately clamps and fixes the workpiece a to be processed, thereby achieving the sizing function of cutting the distance of the workpiece a to be processed. In addition, after the air compression main shaft clamping seat 311 is clamped and locked and fixed, the second servo motor 331 is reversed to drive the sizing unit 33 to integrally move backwards, so that the contact block 335 is completely separated from the workpiece A to be processed, the workpiece A to be processed is prevented from rotating and wearing the surface of the contact block 335 in the cutting chamfering process, the contact block 335, the sliding shaft 337 and the sensing block 338 gradually return to the initial position under the action of the spring 336 in the sizing unit 33 moving backwards in the second sliding table 333 process, and when the sensor 334 does not sense the sensing block 338, the pinch roller mechanism 6 is lifted, the synchronous motor 312 is started, and the cutting chamfering unit 32 starts cutting and chamfering the workpiece A to be processed.

After the cutting and chamfering operations are completed at the two ends of the zirconium alloy pipe bar, the processing executing mechanism 3 loosens the workpiece and carries the processed workpiece under the action of the conveying wheels 44 of the conveying mechanism 4, and at the moment, the processed workpiece is transferred to the blanking frame 2 through the transferring mechanism 5 between the conveying mechanism 4 and the blanking frame 2, so that the whole cutting and chamfering processing procedure is completed.

Specifically, as shown in fig. 1 and 6, a material transferring mechanism 5 in the embodiment of the present utility model is installed on a material transferring base 50, where the material transferring mechanism 5 includes a rotating unit 51 and a material turning unit 52; wherein the rotation unit 51 includes a plurality of second transmission shafts 511 and a plurality of second couplings 512, the plurality of second transmission shafts 511 are connected in series to form a coaxial long shaft through the plurality of second couplings 512, and a fourth servo motor 513 is connected to an end of the long shaft; a turning unit 52 is mounted on each second transmission shaft 511, the turning units 52 and the conveying wheels 44 are staggered, and the turning units 52 transfer the workpieces processed on the conveying mechanism 4 to the blanking frame 2 under the driving of the rotating units 51.

The material turning unit 52 of this embodiment includes a connection plate 521, a first synchronizing wheel 522, a second synchronizing wheel 523, a second synchronizing belt 524, a V-shaped supporting block 525 and a third transmission shaft 526, where one ends of the first synchronizing wheel 522 and the connection plate 521 are both sleeved on the second transmission shaft 511, the other end of the connection plate 521 is rotatably connected with the third transmission shaft 526 through a bearing, the second synchronizing wheel 523 and the V-shaped supporting block 525 are respectively installed on the third transmission shaft 526 and on two sides of the connection plate 521, the second synchronizing wheel 523 is connected with the first synchronizing wheel 522 through the second synchronizing belt 524, and the V-shaped opening of the V-shaped supporting block 525 is upward. Through the arrangement, under the drive of the fourth servo motor 513, the long shaft drives the connecting plate 521 and the first synchronous wheel 522 to rotate, and the first synchronous wheel 522 and the second synchronous wheel 523 are connected through the second synchronous belt 524, so that the second synchronous wheel 523 synchronously rotates along with the first synchronous wheel 522, the long shaft is consistent with the angle speed of the third transmission shaft 526 fixed with the V-shaped supporting block 525, the V-shaped opening of the V-shaped supporting block 525 is always kept upwards, the stable transfer of the workpiece is ensured, in the transfer process, the surface of the workpiece is contacted with the V-shaped supporting block 525, but cannot slide, scratch of the workpiece is avoided, and the quality of the workpiece is ensured.

It should be noted that, the V-shaped supporting block 525 of the turning unit 52 is generally located under the second transmission shaft 511, when the processing of two ends of the workpiece is completed, the material transferring mechanism 5 is started, the V-shaped supporting block 525 rotates anticlockwise around the shaft 511 at a uniform speed, the V-shaped supporting block 525 arrives under the workpiece carried by the conveying wheel 44 to lift the workpiece and arrives above the blanking frame 2, the workpiece contacts the blanking frame 2, the V-shaped supporting block 525 is gradually separated from the workpiece, and finally rotates to the initial position, that is, the second transmission shaft 511 rotates one circle, so that the workpiece is transferred from the conveying wheel 44 to the blanking frame 2.

In order to further ensure the processing quality of the cutting and chamfering device of the present utility model, in this embodiment, a nylon plate (not shown) is laid on the surfaces of the upper material frame 1, the lower material frame 2, the processing executing mechanism 3, the transmission mechanism 4 and the material transferring mechanism 5, which are in contact with the workpiece. Preferably, the blanking frame 2 is manufactured by welding square steel, the material turning units 52 are located at gaps among the square steel, the blanking frame 2 is also provided with an inclined plane with a certain gradient, the inclined plane is consistent with the inclined angle of the inclined cross beam 111, and a material blocking rod is arranged at the bottom of the blanking frame 2 so as to prevent processed workpieces from rolling to the bottom surface, and the workpieces are placed neatly under the action of the inclined plane and the dead weight of the workpieces.

In addition, the feeding frame 1, the discharging frame 2, the processing executing mechanism 3, the transmission mechanism 4, the material transferring mechanism 5 and the pinch roller mechanism 6 of the utility model can be automatically controlled by a control system so as to further improve the processing efficiency, and the control system is not a protection object of the utility model, so that detailed description is omitted.

The specific working procedure of the cutting and chamfering device is as follows, taking zirconium alloy bar processing as an example:

1) Firstly, setting the initial position of the sizing unit 33 according to the length to be cut of the zirconium alloy bar, and placing the zirconium alloy bar on the inclined cross beam 111 at the top of the feeding frame 1;

2) Starting a stirring unit 113, wherein the stirring unit 113 pushes a sole zirconium alloy bar through a baffle block 112, and the zirconium alloy bar rolls into a conveying wheel 44 of the conveying mechanism 4 under the action of the inclined plane of the inclined cross beam 111 and gravity;

3) Starting a transmission mechanism 4 and a pinch roller mechanism 6, transmitting the zirconium alloy bar into a processing execution mechanism 3 on the right side under the combined action of the transmission mechanism and the pinch roller mechanism, wherein the right end of the zirconium alloy bar is gradually close to a sizing unit 33, when the sensor 334 of the sizing unit 33 senses the zirconium alloy bar, an air compression main shaft clamping seat 311 in a clamping rotation unit 31 of the processing execution mechanism 3 clamps and fixes the zirconium alloy bar, the pinch roller mechanism 6 lifts and releases the pressure on the zirconium alloy bar, and the sizing unit 33 integrally moves backwards;

4) The synchronous motor 312 is started to drive the zirconium alloy bar to rotate, the cutting and chamfering unit 32 cuts off and chamfer the right end of the zirconium alloy bar, the cutting and chamfering unit 32 returns to the initial position after the cutting and chamfering unit is completed, and the air compression main shaft clamping seat 311 loosens the workpiece;

5) The pinch roller mechanism 6 descends, and the zirconium alloy bar is conveyed into the left processing executing mechanism 3 from the right processing executing mechanism 3 under the combined action of the pinch roller mechanism and the conveying mechanism 4, and the steps 3) and 4) are repeated;

6) After the left end of the zirconium alloy bar is cut off and chamfering, the machined zirconium alloy bar is withdrawn from the left machining executing mechanism under the action of the conveying mechanism 4, and the machined zirconium alloy bar is completely carried by the conveying wheel 44 of the conveying mechanism 4;

7) The turning mechanism 5 is started, and the V-shaped supporting block 525 in the turning unit 52 positioned on the second transmission shaft 511 transfers the processed zirconium alloy bars from the transmission wheel 44 to the blanking frame 2 under the driving of the fourth servo motor 513, so that the whole processing flow is completed.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model.

It will be understood that the utility model is not limited to what has been described above and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims (10)

1. The cutting and chamfering device for machining zirconium alloy pipe bars is characterized by comprising a feeding frame (1) and a discharging frame (2) which are sequentially and longitudinally arranged, wherein machining execution mechanisms (3) are symmetrically arranged on the left side and the right side of the feeding frame (1) and the left side of the discharging frame (2), a conveying mechanism (4) for conveying workpieces to the machining execution mechanisms (3) on the left side and the right side is arranged between the feeding frame (1) and the discharging frame (2), a turning mechanism (5) is arranged between the conveying mechanism (4) and the discharging frame (2), and the turning mechanism (5) is used for transferring the machined workpieces on the conveying mechanism (4) to the discharging frame (2);

the machining executing mechanism (3) comprises a clamping rotating unit (31), a cutting chamfering unit (32) and a sizing unit (33) which are sequentially arranged at intervals in the direction of a transmission extension line of the transmission mechanism (4);

the clamping and rotating unit (31) comprises an air compression main shaft clamping seat (311) for clamping a workpiece (A) to be processed, a synchronous motor (312) and a first synchronous belt (313), wherein a main shaft of the air compression main shaft clamping seat (311) is connected with a driving wheel of the synchronous motor (312) through the first synchronous belt (313), the main shaft of the air compression main shaft clamping seat (311) is coaxial with the workpiece (A) to be processed on the transmission mechanism (4), and the synchronous motor (312) is used for driving the workpiece (A) to be processed clamped by the air compression main shaft clamping seat (311) to rotate;

the cutting and chamfering unit (32) comprises a first servo motor (321), a first ball screw (322) and a first sliding table (323), wherein the first ball screw (322) is connected with the first sliding table (323), a first fixing seat (324) provided with a cutting tool and a second fixing seat (325) provided with a chamfering tool are correspondingly arranged at the front and rear positions of a workpiece (A) to be machined in the radial direction, and the first servo motor (321) drives the first ball screw (322) to enable the first sliding table (323) to move along the front and rear directions so as to cut and chamfer the workpiece (A) to be machined;

the sizing unit (33) is used for limiting the cutting distance of the workpiece (A) to be processed.

2. The cutting and chamfering device for zirconium alloy pipe bar processing according to claim 1, characterized in that the sizing unit (33) comprises a second servo motor (331), a second ball screw (332), a second sliding table (333) and a sensor (334), the second sliding table (333) is installed on the upper portion of the second ball screw (332), the second ball screw (332) is connected with the second servo motor (331), the second sliding table (333) is driven by the second servo motor (331) to move along the left-right direction, a contact block (335), a spring (336), a sliding shaft (337) and an induction block (338) are sequentially connected on the second sliding table (333) from left to right, the contact block (335) is coaxial with a workpiece (a) to be processed, and the sensor (334) is installed to the induction block (338) at a position of a limit point behind the second sliding table (333);

the sensor (334) is linked with the air compression main shaft clamping seat (311) and the second servo motor (331), after the sensor (334) senses the sensing block (338), the air compression main shaft clamping seat (311) clamps and fixes the workpiece (A) to be processed, and meanwhile the second servo motor (331) reverses to enable the sizing unit (33) to be far away from the workpiece (A) to be processed.

3. The cutting and chamfering device for machining zirconium alloy pipe bars according to claim 1, characterized in that a plurality of feeding execution mechanisms (11) with the same structure are uniformly distributed on the top of the feeding frame (1) along the length direction of the feeding frame, each feeding execution mechanism (11) comprises an inclined cross beam (111) for temporarily storing a workpiece (a) to be machined, a baffle block (112) is arranged on the surface of the inclined cross beam (111), a stirring unit (113) is arranged on the side face of the inclined cross beam (111), and the stirring unit (113) is used for lifting a single workpiece (a) to be machined beyond the baffle block (112) so that the workpiece (a) to be machined is rolled onto the conveying mechanism (4).

4. A cutting and chamfering device for processing zirconium alloy pipe bar according to claim 3, characterized in that the stirring unit (113) comprises a stirring cylinder (1131) arranged vertically and an inclined block (1132) fixedly arranged at the top of a piston rod of the stirring cylinder (1131), wherein the inclined block (1132) is positioned under a workpiece (a) to be processed, which is closely attached to the baffle block (112).

5. A cutting and chamfering apparatus for processing a zirconium alloy pipe bar as claimed in claim 3, characterized in that the inclined cross member (111) has an angle α of 10 ° to 15 ° with respect to a horizontal plane.

6. The cutting and chamfering device for processing zirconium alloy pipe bar as recited in claim 1, characterized in that the transmission mechanism (4) includes a plurality of transmission units connected in series, each of the transmission units includes a first transmission shaft (41), a gear commutator (42), a first coupling (43) and a transmission wheel (44) for carrying a workpiece, the first coupling (43) connects the first transmission shaft (41) with the gear commutator (42), the transmission wheel (44) is mounted on a main shaft of the gear commutator (42), the plurality of first transmission shafts (41) connected in series form a long shaft, and an end of the long shaft is connected with a third servo motor (45).

7. The cutting and chamfering device for processing zirconium alloy pipe bar according to claim 6, characterized in that the cutting and chamfering device further comprises two sets of pinch roller mechanisms (6), the pinch roller mechanisms (6) are respectively arranged at the head end and the tail end of the transmission unit;

the pinch roller mechanism (6) comprises an inverted L-shaped supporting beam (61), a telescopic cylinder (62) is arranged at the horizontal end part of the inverted L-shaped supporting beam (61), a bearing seat (63) is connected with the end part of a piston rod below the telescopic cylinder (62), a rotating shaft (66) is connected to the bearing seat (63) through a bearing (64) and a fixing nut (65), one end of the rotating shaft (66) extending out of the bearing seat (63) is connected with a pinch roller (68) through a clamp spring (67), and the pinch roller (68) is located right above the conveying wheel (44) and used for preventing a workpiece (A) to be processed from tilting when extending out of the conveying mechanism (4).

8. The cutting and chamfering device for processing zirconium alloy pipe bar according to claim 1, characterized in that the turning mechanism (5) comprises a turning unit (51) and a turning unit (52);

the rotating unit (51) comprises a plurality of second transmission shafts (511) and second couplings (512), the second transmission shafts (511) are connected in series through the second couplings (512) to form a long shaft, and the end part of the long shaft is connected with a fourth servo motor (513);

and each second transmission shaft (511) is provided with a material turning unit (52), and the material turning units (52) transfer the processed workpiece on the transmission mechanism (4) to the blanking frame (2) under the drive of the rotation units (51).

9. The cutting and chamfering device for machining zirconium alloy pipe bars according to claim 8, characterized in that the turning unit (52) comprises a connecting plate (521), a first synchronizing wheel (522), a second synchronizing wheel (523), a second synchronizing belt (524), a V-shaped supporting block (525) and a third transmission shaft (526), one ends of the first synchronizing wheel (522) and the connecting plate (521) are sleeved on the second transmission shaft (511), the other end of the connecting plate (521) is rotationally connected with the third transmission shaft (526) through a bearing, the second synchronizing wheel (523) and the V-shaped supporting block (525) are respectively installed on two sides of the third transmission shaft (526), the second synchronizing wheel (523) is connected with the first synchronizing wheel (522) through the second synchronizing belt (524), and the V-shaped opening of the V-shaped supporting block (525) is upward.

10. The cutting and chamfering device for machining zirconium alloy pipe bars according to any one of claims 1 to 9, characterized in that a nylon plate is laid on the surfaces, which are in contact with the workpiece, of the upper material frame (1), the lower material frame (2), the machining executing mechanism (3), the transmission mechanism (4) and the material transferring mechanism (5).