An automatic chamfering device for bars in a steel rolling production line

Abstract

The present invention relates to the technical field of steel rolling production equipment, and in particular to an automatic chamfering device for bars in a steel rolling production line, comprising a lifting support platform and two symmetrically arranged processing platforms, the tops of the two processing platforms are each provided with a chamfering device, the two chamfering devices are symmetrically arranged, and further comprising: two symmetrically arranged clamping assemblies; the present invention controls the distance that the end of the bar extends out of the mounting ring while clamping and limiting the two ends of the bar, so that the clamping points between the bar and the fixed clamping member and the movable clamping member are determined, which is conducive to accurately finding the clamping points, canceling the large-area support of the bar by the lifting support platform, and fixing and clamping the end of the bar by the fixed clamping member, avoiding the support and clamping of a single large surface, which is conducive to preventing scattered debris or impurities from being retained between the bar and the support surface or the clamping surface, causing the end of the bar to be offset.

Description

Technical Field

[0001] The invention relates to the field of steel rolling production equipment, in particular to an automatic chamfering device for bars in a steel rolling production line. Background Art

[0002] After processing, both ends of the rolled steel bars are right angles, and there are burrs at the cut points. These right angles can easily cause scratches to the user, so they need to be chamfered. The so-called chamfering is to slightly chamfer the outer right angle or inner right angle of the workpiece to avoid stress concentration and avoid scratching fingers during installation.

[0003] The Chinese invention patent with announcement number CN116060702B discloses a rolled steel bar chamfering device, which belongs to the technical field of rolled steel production equipment. Transport mechanisms for transporting rolled steel bars are respectively arranged on both sides of the conveyor frame, and a feeding mechanism for transporting one end of the rolled steel bar to the chamfering mechanism is arranged on each first support plate, and a clamping mechanism for clamping the rolled steel bar is arranged on each second support plate, and a chamfering mechanism for chamfering one end of the rolled steel bar is respectively arranged on each support frame.

[0004] During the processing of the existing rolled steel bar chamfering device, the two ends of the bar need to be chamfered step by step, which is not convenient for synchronous processing. In addition, the surface of the bar needs to be supported and clamped over a large area before processing. If impurities remain on the support, the direction of the end of the bar will be offset, affecting the processing quality.

[0005] To this end, the present invention proposes an automatic chamfering device for bars in a steel rolling production line to solve the above-mentioned problem. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automatic chamfering device for bars in a steel rolling production line.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: an automatic chamfering device for bars in a steel rolling production line, comprising a lifting support platform and two symmetrically arranged processing platforms, the tops of the two processing platforms are both provided with chamfering devices, the two chamfering devices are symmetrically arranged, and further comprising:

[0008] Two symmetrically arranged clamping assemblies, the clamping assemblies comprising a mounting ring, a stopper and a plurality of annularly arranged clamping claws, the stopper being movably arranged at the end of the mounting ring, the clamping claws comprising a rolling clamping member and a fixed clamping member, the rolling clamping member and the fixed clamping member being installed inside the mounting ring;

[0009] a first thread drive assembly, the first thread drive assembly being used for thread-driving the mounting ring to move;

[0010] Among them, in the process that the threaded drive mounting ring of the first threaded drive assembly moves and then drives the clamping assembly to approach the end of the rod, a plurality of annularly arranged clamping claws will be distributed in an annular manner on the surface of the rod, and under the support of the rolling clamping member, the support limit is realized until the two limit members contact the two ends of the rod, accurately find the clamping point, eliminate the large-area support of the lifting support platform for the rod, and fix the end of the rod by the fixed clamping member.

[0011] It should be understood that during the processing, the bar is first supported on the top of the lifting support platform, and then the first threaded drive assembly threadedly drives the mounting ring to move, thereby driving the clamping assembly to approach the end of the bar. In the process, multiple annularly arranged clamping claws are distributed in an annular manner on the surface of the bar, and under the support of the rolling clamping member, the support limit is achieved, so that the end of the bar is facing the chamfering device, and the automatic positioning and grinding direction is achieved;

[0012] Continue to drive the mounting ring to move until the two limit members contact the two ends of the rod, and control the distance that the end of the rod extends out of the mounting ring while clamping and limiting the two ends of the rod, so that the clamping points between the rod and the fixed clamping member and the movable clamping member are determined, which is conducive to accurately finding the clamping point, canceling the large-area support of the rod by the lifting support platform, and fixing and clamping the end of the rod by the fixed clamping member, avoiding the support and clamping of a single large surface, which is conducive to preventing scattered debris or impurities from being retained between the rod and the support surface or the clamping surface, causing the end of the rod to deviate;

[0013] After the positioning and clamping is completed, the two ends of the bar are positioned and clamped, and accurately aligned with the chamfering device, and the clamping point is controlled, which provides favorable conditions for the two chamfering devices to perform synchronous chamfering on the two ends of the bar in the later stage. Then, the two chamfering devices perform synchronous chamfering on the two ends of the bar to complete the chamfering.

[0014] As a further optimized technical solution of the present invention, the clamping assembly further includes:

[0015] An annular mounting rail, the annular mounting rail is fixedly sleeved on the surface of the mounting ring;

[0016] The limiting member comprises a positioning pin and a support frame. The support frame is slidably arranged in the track of the annular mounting rail, and the end of the support frame is rotatably connected to the positioning pin. The end of the positioning pin contacts the end of the rod.

[0017] It should be understood that in the process of clamping and positioning, the mounting ring is first sleeved onto the end of the bar, and when it continues to move, the positioning pin of the limiting member will contact the end of the bar, and both ends of the bar are limited by the positioning pin, thereby clamping the two ends of the bar and positioning the position of the bar. At the same time, since the relative position of the positioning pin and the mounting ring is fixed, the positioning of the clamping point of the bar is realized, providing conditions for synchronous chamfering of the two ends of the bar;

[0018] It should be noted that, by slidingly setting the limiting member on the annular mounting rail, freedom is provided for the subsequent chamfering, thereby avoiding the situation in which the limiting member causes obstruction during the chamfering process.

[0019] As a further optimized technical solution of the present invention, the clamping assembly further includes:

[0020] An installation inner ring, wherein the installation inner ring is fixedly connected to the inside of the installation ring;

[0021] A plurality of connection grooves, wherein the plurality of connection grooves are arranged in an annular array on the inner ring surface of the mounting inner ring;

[0022] A support seat, wherein the support seat is slidably mounted in the connection groove and a side close to the rod is rotationally connected to the rolling clamp;

[0023] A plurality of inclined tracks, wherein the plurality of inclined tracks are respectively fixedly connected to the ends of the plurality of support seats, and movable pins are slidably arranged in the plurality of inclined tracks;

[0024] An annular movable plate, the side of which is connected to a movable pin, and an electric cylinder is fixedly connected between the annular movable plate and the side of the mounting ring, so that after the rod enters the mounting ring, the electric cylinder is started to pull the annular movable plate, and the movable pin is simultaneously driven to push the inclined track, so that the support seats at multiple positions are synchronously close to the surface of the rod until the rolling clamp contacts the rod, forming a clamping limit, so that the end of the rod is facing the chamfering device.

[0025] It should be understood that after the rod is inserted into the mounting ring, the electric cylinder is started, and the electric cylinder pulls the annular movable plate, and the annular movable plate synchronously drives the movable pin to act on the inclined track, so that the support seats at multiple positions are synchronously close to the surface of the rod until the rolling clamp contacts the rod, forming a clamping limit, so that the end of the rod is facing the chamfering device, and is positioned by the rolling clamp, providing freedom for further sleeve movement of the mounting ring, and rolling contact, reducing the contact area of ​​single-point clamping, and in the process of rolling clamping limit, it is beneficial to crush and drive away large sticky objects.

[0026] As a further optimized technical solution of the present invention, the movable pin further includes:

[0027] A connecting frame, the connecting frame is rotatably connected to the surface of the movable pin;

[0028] The plurality of connecting frames are fixedly connected via connecting rings;

[0029] Two support rods, the two support rods are fixedly connected to the surface of the connecting frame and penetrate and plug into the annular movable plate, and one end of the support rod away from the connecting frame is fixedly connected to the limiting plate;

[0030] Two second support springs are respectively sleeved on the surfaces of the two support rods and located between the connecting frame and the annular movable plate.

[0031] It should be understood that by setting the connecting ring, multiple movable pins can move synchronously, thereby realizing the synchronous movement of the support seat, and then keeping the movable clamping member moving synchronously toward the center of the mounting ring to achieve centered clamping of the rod, which is helpful to avoid deviation of the rod.

[0032] As a further optimized technical solution of the present invention, the fixed clamp is slidably arranged at one end of the support seat close to the processing table, and an adjustment component is arranged between the support seat and the support seat for adjusting the fixed clamp to be close to the surface of the bar, and the adjustment component includes:

[0033] An adjustment frame, the adjustment frame is slidably disposed in the connection groove and fixedly connected to the surface of the fixed clamping member, and a first support spring is connected between the adjustment frame and the support seat;

[0034] Two linkage blocks, the two linkage blocks are symmetrically fixedly connected to two sides of the adjustment frame, and the linkage blocks have inclined surfaces;

[0035] Two push rods are inserted through the inner mounting ring, one end of the push rods is in contact with the inclined surface of the linkage block, and the other end is fixedly connected with the annular movable plate.

[0036] It should be understood that after the rolling clamping piece completes clamping and the positioning pin contacts the end of the rod, the electric cylinder is started to continue pulling the annular movable plate. While the annular movable plate compresses the second supporting spring, it drives the push rod to move to the inclined surface of the linkage block until the linkage block and the adjusting frame are pushed to move. The adjusting frame simultaneously drives the fixed clamping piece to move until the fixed clamping piece clamps the rod, thereby realizing automatic clamping and positioning, and achieving fixed clamping of the rod surface with the clamping point determined.

[0037] As a further optimized technical solution of the present invention, a cleaning assembly is also included, and the cleaning assembly is used to pre-clean the surface of the end of the rod entering the mounting ring, and the cleaning assembly includes:

[0038] A mounting sleeve, the mounting sleeve being rotatably connected to a port of the mounting ring for the rod to enter;

[0039] A plurality of cleaning brushes, wherein the plurality of cleaning brushes are fixedly connected to the inner wall of the mounting sleeve and are distributed in a ring array;

[0040] A rotation driving unit, wherein the rotation driving unit is used to drive the mounting sleeve to rotate.

[0041] It should be understood that before the mounting ring is installed on the end of the rod, the mounting sleeve is driven to rotate by the rotary drive unit, and the mounting sleeve synchronously drives the cleaning brush to move. In the process of the end of the rod passing through the mounting sleeve, it will be cleaned by the cleaning brush, and impurities or debris stuck on the surface of the rod will be cleaned, which is beneficial to avoid blocking the clamping surface and causing the end position of the rod to shift.

[0042] As an optional technical solution of the present invention, the rotation drive unit includes:

[0043] A follower gear, wherein the follower gear fixing sleeve is arranged on the surface of the mounting sleeve;

[0044] The first motor is fixedly mounted on the top of the mounting ring, and an output end of the first motor is fixedly connected with a driving gear, and the driving gear is meshed with a follower gear.

[0045] It should be understood that by starting the first motor, the first motor drives the driving gear to rotate, the first gear synchronously drives the follower gear to rotate, the follower gear drives the mounting sleeve to rotate, and then synchronously drives the cleaning brush to rotate, providing power for the movement of the cleaning brush.

[0046] As a further optimized technical solution of the present invention, the cleaning brush is in the shape of a spiral blade, and the contact trajectory between the cleaning brush and the rod is a spiral trajectory.

[0047] It should be understood that by setting the cleaning brush into a spiral blade shape, during the cleaning process, on the one hand, the contact trajectory with the rod can be increased, which is beneficial to improve the cleaning efficiency. On the other hand, the cleaned debris can be spirally pushed toward the outside of the mounting sleeve, which is beneficial to prevent the cleaned impurities from moving to the clamping position.

[0048] As an optional technical solution of the present invention, the chamfering device comprises:

[0049] A sliding seat, the sliding seat being slidably mounted on the top surface of the processing table;

[0050] a second thread drive assembly, the second thread drive assembly being used for thread-driving the sliding seat to move;

[0051] A second motor, wherein the second motor is fixedly mounted on the top surface of the sliding seat, and an output end of the second motor is fixedly connected to a rotating frame;

[0052] A movable frame, wherein the movable frame is connected to the rotating frame via an elastic member;

[0053] Two tool holders are symmetrically fixedly connected to the movable frame, and tools are fixedly mounted on the ends of the tool holders.

[0054] It should be understood that after the two ends of the rod are positioned and clamped, the sliding seat is driven to move by the second threaded drive assembly, and the sliding seat synchronously drives the second motor, the movable frame, the tool holder and the tool to move synchronously as a whole until the tool is pressed against the edge of the rod. Then, the second motor is started, and the second motor synchronously drives the rotating frame to rotate, and the rotating frame synchronously drives the movable frame and the tool to rotate synchronously, thereby realizing the chamfering of the edge of the end of the rod.

[0055] It should be noted that during the chamfering process, the tool holder will contact the support frame of the limiting member and move with the support frame of the limiting member, thereby avoiding mutual obstruction.

[0056] As an optional technical solution of the present invention, the elastic member includes:

[0057] Two connecting rods, both of which are inserted into the rotating frame, and one end of the connecting rods is fixedly connected to the surface of the moving frame, and the other end is fixedly connected to the limiting ring;

[0058] Two third support springs are respectively sleeved on the surfaces of the two connecting rods and are located between the moving frame and the rotating frame.

[0059] It should be understood that, in the process of the tool and the end of the rod being pressed against each other, the third support spring will be squeezed, generating a certain elastic tendency force, thus providing conditions for the gradual formation of the depth of the chamfer.

[0060] Compared with the prior art, the present invention has the following beneficial effects:

[0061] The present invention controls the distance that the end of the rod protrudes from the mounting ring and at the same time clamps and limits the two ends of the rod, so that the clamping points between the rod and the fixed clamping member and the movable clamping member are determined, which is conducive to accurately finding the clamping points, eliminating the large-area support of the rod by the lifting support platform, and fixing and clamping the end of the rod by the fixed clamping member, avoiding the support and clamping of a single large surface, which is conducive to preventing scattered debris or impurities from being retained between the rod and the support surface or the clamping surface, causing the end of the rod to be offset.

[0062] The locating pin of the limiter will contact the end of the rod, and both ends of the rod will be limited by the locating pin, so as to clamp the two ends of the rod and locate the position of the rod. At the same time, since the relative position of the locating pin and the mounting ring is fixed, the clamping point of the rod is located, which provides conditions for the synchronous chamfering of the two ends of the rod.

[0063] During the fixed clamping process, the fixed clamping member in the positioning clamping state is limited, so that the rolling clamping member loses its rolling effect and is transformed into a fixed clamping member, thereby achieving further fixed clamping of the rod and facilitating further maintaining the stability of the end of the rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a first overall structural schematic diagram of the present invention.

[0065] Figure 2 It is a structural schematic diagram of the processing table of the present invention.

[0066] Figure 3 It is a partial structural schematic diagram of the chamfering device of the present invention.

[0067] Figure 4 It is a schematic structural diagram of the position limiting member of the present invention.

[0068] Figure 5 It is a schematic diagram of the first cross-sectional structure of the mounting ring of the present invention.

[0069] Figure 6 It is a schematic diagram of the second cross-sectional structure of the mounting ring of the present invention.

[0070] Figure 7 It is a schematic diagram of the first partial cross-sectional structure of the installation inner ring of the present invention.

[0071] Figure 8 It is a structural schematic diagram of the support base of the present invention.

[0072] Fig. 9 It is a schematic diagram of the cross-sectional structure of the support base of the present invention.

[0073] Fig.10 It is a schematic diagram of the structure of the installation sleeve and the cleaning brush of the present invention.

[0074] Fig.11 It is a schematic diagram of the second partial cross-sectional structure of the installation inner ring of the present invention.

[0075] In the figure: 1, lifting support platform; 101, mounting seat; 102, lifting cylinder; 2, processing table; 3, mounting ring; 4, rolling clamp; 5, fixed clamp; 6, annular mounting rail; 7, positioning pin; 8, support frame; 9, fourth motor; 10, second threaded rod; 11, driving frame; 12, mounting inner ring; 13, connecting groove; 14, support seat; 15, inclined track; 16, movable pin; 17, annular movable plate; 18, electric cylinder; 19, connecting frame; 20, connecting ring; 21, support rod; 22, second support spring Spring; 23, limit plate; 24, adjustment frame; 25, first support spring; 26, linkage block; 27, push rod; 28, friction plate; 29, moving space; 30, installation sleeve; 31, cleaning brush; 32, follower gear; 33, first motor; 34, driving gear; 35, sliding seat; 36, second motor; 37, rotating frame; 38, moving frame; 39, tool holder; 40, tool; 41, third motor; 42, first threaded rod; 43, connecting rod; 44, third support spring; 45, limit ring; 46, rod. DETAILED DESCRIPTION

[0076] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0077] like Figures 1 to 11 The automatic chamfering device for bars of a steel rolling production line shown in the figure comprises a lifting support platform 1 and two processing platforms 2 symmetrically arranged with the lifting support platform 1 as a reference point, the tops of the two processing platforms 2 are both provided with chamfering devices, and the two chamfering devices are symmetrically arranged with the lifting support platform 1 as a reference point, and further comprises:

[0078] Two symmetrically arranged clamping assemblies, the clamping assemblies include a mounting ring 3, a limiter and a plurality of annularly arranged clamping claws, the limiter is movably arranged at the end of the mounting ring 3, the clamping claws include a rolling clamping member 4 and a fixed clamping member 5, and the rolling clamping member 4 and the fixed clamping member 5 are installed inside the mounting ring 3;

[0079] It should be further explained that the mounting ring 3 is located in the space between the lifting support platform 1 and the processing platform 2 .

[0080] A first thread drive assembly, the first thread drive assembly is used for thread drive the mounting ring 3 to move;

[0081] Among them, in the process that the threaded drive mounting ring 3 of the first threaded drive assembly moves and then drives the clamping assembly to approach the end of the rod 46, a plurality of annularly arranged clamping claws will be distributed in an annular manner on the surface of the rod 46, and under the support of the rolling clamping member 4, the support limit is realized until the two limit members contact the two ends of the rod 46, and the clamping point is accurately found, the large-area support of the lifting support platform 1 to the rod 46 is cancelled, and the end of the rod 46 is fixedly clamped by the fixed clamping member 5.

[0082] Specifically, the lifting support platform 1 also includes a mounting base 101, and two lifting cylinders 102 are fixedly installed on the top of the mounting base 101. The telescopic ends of the two lifting cylinders 102 are fixedly connected to the bottom surface of the lifting support platform 1. Through the setting of the lifting cylinders 102, the height of the lifting support platform 1 is adjusted.

[0083] It should be understood that during the processing, the bar 46 is first supported on the top of the lifting support platform 1, and then the first threaded drive assembly threadedly drives the mounting ring 3 to move, thereby driving the clamping assembly to approach the end of the bar 46. In the process, multiple annularly arranged clamping claws will be distributed in an annular manner on the surface of the bar 46, and under the support of the rolling clamp 4, the support limit is realized, so that the end of the bar 46 is directly opposite to the chamfering device, and the automatic positioning and grinding direction is realized;

[0084] Continue to drive the mounting ring 3 to move until the two limit members contact the two ends of the rod 46, and control the distance that the end of the rod 46 extends out of the mounting ring 3 while clamping and limiting the two ends of the rod 46, so that the clamping points between the rod 46 and the fixed clamping member 5 and the movable clamping member are determined, which is conducive to accurately finding the clamping point, canceling the large-area support of the rod 46 by the lifting support platform 1, and fixing and clamping the end of the rod 46 by the fixed clamping member 5, avoiding the support and clamping of a single large surface, which is conducive to preventing scattered debris or impurities from being retained between the rod 46 and the support surface or the clamping surface, causing the end of the rod 46 to deviate;

[0085] After the positioning and clamping are completed, the two ends of the rod 46 are positioned and clamped, and accurately aligned with the chamfering device, and the clamping point is controlled, which provides favorable conditions for the two chamfering devices to perform synchronous chamfering on the two ends of the rod 46 in the later stage. Then, the two chamfering devices perform synchronous chamfering on the two ends of the rod 46 to complete the chamfering.

[0086] As a further optimized embodiment of the present invention, the clamping assembly further includes:

[0087] An annular mounting rail 6, the annular mounting rail 6 is fixedly sleeved on the surface of the mounting ring 3;

[0088] The limiting member includes a positioning pin 7 and a support frame 8 . The support frame 8 is slidably arranged in the track of the annular mounting rail 6 , and the end of the support frame 8 is rotatably connected to the positioning pin 7 . The end of the positioning pin 7 contacts the end of the rod 46 .

[0089] Specifically, the first threaded drive assembly includes two fourth motors 9, and the two fourth motors 9 are fixedly mounted on the surface of the processing table 2. The output ends of the two fourth motors 9 are fixedly connected with the second threaded rods 10, and the surfaces of the two second threaded rods 10 are threadedly connected with drive frames 11, and the two drive frames 11 are respectively fixedly connected to the two sides of the annular mounting rail 6. When it is necessary to drive the mounting ring 3 to move, the two fourth motors 9 are started at the same time, and the two fourth motors 9 synchronously drive the two second threaded rods 10 to rotate, and the two second threaded rods 10 synchronously threadedly drive the two drive frames 11 to move, thereby realizing the synchronous movement of the annular mounting rail 6 and the mounting ring 3.

[0090] It should be understood that in the process of clamping and positioning, the mounting ring 3 is first sleeved onto the end of the rod 46. When the movement continues, the positioning pin 7 of the limiting member will contact the end of the rod 46. Both ends of the rod 46 are limited by the positioning pin 7, thereby clamping the two ends of the rod 46 and positioning the position of the rod 46. At the same time, since the relative position of the positioning pin 7 and the mounting ring 3 is fixed, the positioning of the clamping point of the rod 46 is achieved, providing conditions for synchronous chamfering of the two ends of the rod 46.

[0091] It should be noted that, by slidingly setting the limiting member on the annular mounting rail 6, a degree of freedom is provided for the subsequent chamfering, thereby avoiding the situation in which the limiting member causes obstruction during the chamfering process.

[0092] As a further optimized embodiment of the present invention, the clamping assembly further includes:

[0093] Install the inner ring 12, which is fixedly connected to the inside of the mounting ring 3;

[0094] A plurality of connecting grooves 13, wherein the plurality of connecting grooves 13 are arranged in an annular array on the inner ring surface of the inner ring 12;

[0095] The support seat 14 is slidably mounted in the connection groove 13, and the side close to the rod 46 is rotatably connected to the rolling clamp 4;

[0096] A plurality of inclined tracks 15, wherein the plurality of inclined tracks 15 are respectively fixedly connected to the ends of the plurality of support seats 14, and movable pins 16 are slidably arranged in the plurality of inclined tracks 15;

[0097] An annular movable plate 17, the side of which is connected to the movable pin 16, and an electric cylinder 18 is fixedly connected between the annular movable plate 17 and the side of the mounting ring 3, so that after the rod 46 enters the mounting ring 3, the electric cylinder 18 is started to pull the annular movable plate 17, and the movable pin 16 is synchronously driven to push the inclined track 15, so that the support seats 14 at multiple positions are synchronously close to the surface of the rod 46 until the rolling clamp 4 contacts the rod 46, forming a clamping limit, so that the end of the rod 46 is facing the chamfering device.

[0098] It should be understood that after the rod 46 is inserted into the mounting ring 3, the electric cylinder 18 is started, and the electric cylinder 18 pulls the annular movable plate 17, and the annular movable plate 17 synchronously drives the movable pin 16 to act on the inclined track 15, so that the support seats 14 at multiple positions are synchronously close to the surface of the rod 46 until the rolling clamp 4 contacts the rod 46 to form a clamping limit, so that the end of the rod 46 is facing the chamfering device and is positioned by the rolling clamp 4, providing freedom for further sleeve movement of the mounting ring 3, and rolling contact reduces the contact area of ​​single-point clamping, which is beneficial to crush and drive away large sticky objects during the rolling clamping limit process.

[0099] As a further optimized embodiment of the present invention, the movable pin 16 further includes:

[0100] A connecting frame 19, the connecting frame 19 is rotatably connected to the surface of the movable pin 16;

[0101] The multiple connecting frames 19 are fixedly connected by connecting rings 20;

[0102] Two support rods 21, the two support rods 21 are fixedly connected to the surface of the connecting frame 19, and penetrate and plug into the annular movable plate 17, and one end of the support rod 21 away from the connecting frame 19 is fixedly connected to the limiting plate 23;

[0103] Two second support springs 22 are respectively sleeved on the surfaces of the two support rods 21 and are located between the connecting frame 19 and the annular moving plate 17 .

[0104] It should be understood that by setting the connecting ring 20, multiple movable pins 16 can move synchronously, thereby realizing the synchronous movement of the support seat 14, and then keeping the movable clamping member moving synchronously toward the center of the mounting ring 3 to achieve the centered clamping of the rod 46, which is helpful to avoid deviation of the rod 46.

[0105] As a further optimized embodiment of the present invention, the fixed clamping member 5 is slidably disposed at one end of the support seat 14 close to the processing table 2, and an adjustment component is disposed between the support seat 14 for adjusting the fixed clamping member 5 to be close to the surface of the rod 46, and the adjustment component includes:

[0106] An adjustment frame 24, which is slidably disposed in the connection groove 13 and fixedly connected to the surface of the fixed clamp 5, and a first support spring 25 is connected between the adjustment frame 24 and the support seat 14;

[0107] Two linkage blocks 26, the two linkage blocks 26 are symmetrically fixedly connected to the two sides of the adjustment frame 24, and the linkage blocks 26 have inclined surfaces;

[0108] Two push rods 27 are inserted through the mounting inner ring 12 , and one end of the two push rods 27 is in contact with the inclined surface of the linkage block 26 , and the other end is fixedly connected to the annular moving plate 17 .

[0109] It should be understood that after the rolling clamping member 4 completes clamping and the positioning pin 7 contacts the end of the rod 46, the electric cylinder 18 is started to continue pulling the annular movable plate 17. While the annular movable plate 17 compresses the second supporting spring 22, it drives the push rod 27 to move to the inclined surface of the linkage block 26 until the linkage block 26 and the adjusting frame 24 are pushed to move. The adjusting frame 24 simultaneously drives the fixed clamping member 5 to move until the fixed clamping member 5 clamps the rod 46, thereby realizing automatic clamping and positioning, and realizing fixed clamping of the surface of the rod 46 with the clamping point determined.

[0110] It needs to be further defined that the end of the adjustment frame 24 is also fixedly connected with a friction plate 28, which is in frictional contact with the rolling clamp 4. During the fixed clamping process, the fixed clamp 5 in the positioning clamping state is limited, so that the rolling clamp 4 loses its rolling effect and is transformed into a fixed clamp 5, thereby achieving further fixed clamping of the rod 46, which is beneficial to further maintain the stability of the end of the rod 46.

[0111] Specifically, a moving space 29 for the friction plate 28 to move is provided on the support seat 14 .

[0112] As a further optimized embodiment of the present invention, a cleaning assembly is also included, which is used to pre-clean the end surface of the rod 46 entering the mounting ring 3, and the cleaning assembly includes:

[0113] A mounting sleeve 30, the mounting sleeve 30 is rotatably connected to the port of the mounting ring 3 for the rod 46 to enter;

[0114] A plurality of cleaning brushes 31, wherein the plurality of cleaning brushes 31 are fixedly connected to the inner wall of the mounting sleeve 30 and are distributed in a circular array;

[0115] The rotation driving unit is used to drive the mounting sleeve 30 to rotate.

[0116] It should be understood that before the mounting ring 3 is installed on the end of the rod 46, the mounting sleeve 30 is driven to rotate by the rotary drive unit, and the mounting sleeve 30 simultaneously drives the cleaning brush 31 to move. In the process of the end of the rod 46 passing through the mounting sleeve 30, it will be cleaned by the cleaning brush 31, and the impurities or debris stuck on the surface of the rod 46 will be cleaned, which is beneficial to avoid blocking the clamping surface and causing the end position of the rod 46 to be offset.

[0117] As an optional embodiment of the present invention, the rotation drive unit includes:

[0118] A follower gear 32, the follower gear 32 is fixedly sleeved on the surface of the mounting sleeve 30;

[0119] The first motor 33 is fixedly mounted on the top of the mounting ring 3 , and an output end of the first motor 33 is fixedly connected with a driving gear 34 , and the driving gear 34 is meshed with the follower gear 32 .

[0120] It should be understood that by starting the first motor 33, the first motor 33 drives the driving gear 34 to rotate, the first gear synchronously drives the follower gear 32 to rotate, the follower gear 32 drives the mounting sleeve 30 to rotate, and then synchronously drives the cleaning brush 31 to rotate, providing power for the movement of the cleaning brush 31.

[0121] As a further optimized embodiment of the present invention, the shape of the cleaning brush 31 is a spiral blade, and the contact trajectory between the cleaning brush 31 and the rod 46 is a spiral trajectory.

[0122] It should be understood that by setting the cleaning brush 31 into a spiral blade shape, during the cleaning process, on the one hand, the contact trajectory with the rod 46 can be increased, which is beneficial to improve the cleaning efficiency. On the other hand, the cleaned debris can be spirally pushed toward the outside of the mounting sleeve 30, which is beneficial to prevent the cleaned impurities from moving toward the clamping position.

[0123] As an optional embodiment of the present invention, the chamfering device comprises:

[0124] A sliding seat 35, the sliding seat 35 is slidably mounted on the top surface of the processing table 2;

[0125] A second thread drive assembly, the second thread drive assembly is used for thread drive the sliding seat 35 to move;

[0126] A second motor 36, the second motor 36 is fixedly mounted on the top surface of the sliding seat 35, and the output end of the second motor 36 is fixedly connected to a rotating frame 37;

[0127] A movable frame 38, wherein the movable frame 38 is connected to the rotating frame 37 via an elastic member;

[0128] Two tool holders 39 are symmetrically fixedly connected to the moving frame 38 , and a tool 40 is fixedly mounted on the end of the tool holder 39 .

[0129] It should be understood that after the two ends of the rod 46 are positioned and clamped, the sliding seat 35 is driven to move by the second threaded drive assembly, and the sliding seat 35 synchronously drives the second motor 36, the movable frame 38, the tool holder 39 and the tool 40 to move synchronously as a whole until the tool 40 is pressed against the edge of the rod 46. Then, the second motor 36 is started, and the second motor 36 synchronously drives the rotating frame 37 to rotate, and the rotating frame 37 synchronously drives the movable frame 38 and the tool 40 to rotate synchronously, thereby realizing the chamfering of the edge of the end of the rod 46.

[0130] It should be noted that during the chamfering process, the tool holder 39 will contact the support frame 8 of the limiting member and move with the support frame 8 of the limiting member, thereby avoiding mutual obstruction.

[0131] The second threaded drive assembly includes a third motor 41. The end of the third motor 41 is fixedly connected to a first threaded rod 42. The first threaded rod 42 is threadedly connected to the sliding seat 35. The first threaded rod 42 is driven to rotate by the third motor 41, thereby realizing the function of thread-driven sliding seat 35 moving.

[0132] As an optional embodiment of the present invention, the elastic member includes:

[0133] Two connecting rods 43, both of which penetrate and are inserted into the rotating frame 37, and one end of the two connecting rods 43 is fixedly connected to the surface of the moving frame 38, and the other end is fixedly connected to the limiting ring 45;

[0134] Two third support springs 44 are respectively sleeved on the surfaces of the two connecting rods 43 and are located between the moving frame 38 and the rotating frame 37 .

[0135] It should be understood that, when the cutter 40 is pressed against the end of the rod 46 , the third support spring 44 will be squeezed, generating a certain elastic tendency force, thus providing conditions for the gradual formation of the depth of the chamfer.

[0136] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic chamfering device for bars in a steel rolling production line, comprising a lifting support platform (1) and two symmetrically arranged processing platforms (2), characterized in that: The tops of the two processing tables (2) are both provided with chamfering devices, the two chamfering devices are symmetrically arranged, and further include: Two symmetrically arranged clamping assemblies, the clamping assemblies comprising a mounting ring (3), a limiting member and a plurality of annularly arranged clamping claws, the limiting member being movably arranged at the end of the mounting ring (3), the clamping claws comprising a rolling clamping member (4) and a fixed clamping member (5), the rolling clamping member (4) and the fixed clamping member (5) being installed inside the mounting ring (3); a first thread drive assembly, the first thread drive assembly being used to threadably drive the mounting ring (3) to move; In the process where the threaded drive mounting ring (3) of the first threaded drive assembly moves and thereby drives the clamping assembly to approach the end of the rod (46), a plurality of annularly arranged clamping claws are distributed in an annular manner on the surface of the rod (46), and supported by the rolling clamping member (4), support limiting is achieved until the two limiting members contact the two ends of the rod (46), accurately finding the clamping point, eliminating the large-area support of the rod (46) by the lifting support platform (1), and fixing the end of the rod (46) by the fixed clamping member (5); The clamping assembly also includes: An annular mounting rail (6), the annular mounting rail (6) being fixedly sleeved on the surface of the mounting ring (3); The limiting member comprises a positioning pin (7) and a support frame (8), wherein the support frame (8) is slidably arranged in a track of the annular mounting rail (6), and an end portion is rotatably connected to the positioning pin (7), and the end portion of the positioning pin (7) contacts an end portion of the rod (46); The clamping assembly also includes: An installation inner ring (12), wherein the installation inner ring (12) is fixedly connected to the inside of the installation ring (3); A plurality of connection grooves (13), wherein the plurality of connection grooves (13) are arranged in an annular array on the inner ring surface of the mounting inner ring (12); A support seat (14), the support seat (14) being slidably mounted in the connection groove (13), and having a side close to the rod (46) being rotationally connected to the rolling clamp (4); A plurality of inclined tracks (15), wherein the plurality of inclined tracks (15) are respectively fixedly connected to the ends of the plurality of support seats (14), and movable pins (16) are slidably arranged in the plurality of inclined tracks (15); An annular movable plate (17), the side of which is connected to a movable pin (16), and an electric cylinder (18) is fixedly connected between the annular movable plate (17) and the side of the mounting ring (3), so that after the rod (46) enters the mounting ring (3), the electric cylinder (18) is started to pull the annular movable plate (17), and synchronously drives the movable pin (16) to push the inclined track (15), so that the support seats (14) at multiple positions are synchronously close to the surface of the rod (46) until the rolling clamp (4) contacts the rod (46), forming a clamping limit, so that the end of the rod (46) is directly opposite to the chamfering device.

2. The automatic chamfering device for bars in a steel rolling production line according to claim 1, characterized in that: The movable pin (16) further comprises: A connecting frame (19), the connecting frame (19) being rotatably connected to the surface of the movable pin (16); The plurality of connecting frames (19) are fixedly connected via a connecting ring (20); Two support rods (21), the two support rods (21) are fixedly connected to the surface of the connecting frame (19), and penetrate and are inserted into the annular movable plate (17), and one end of the support rod (21) away from the connecting frame (19) is fixedly connected to a limiting plate (23); Two second support springs (22), the two second support springs (22) are respectively sleeved on the surfaces of the two support rods (21) and are located between the connecting frame (19) and the annular movable plate (17).

3. The automatic chamfering device for bars in a steel rolling production line according to claim 2, characterized in that: The fixed clamping member (5) is slidably disposed at one end of the support seat (14) close to the processing table (2), and an adjustment component is disposed between the support seat (14) and the fixed clamping member (5) for adjusting the fixed clamping member (5) to be close to the surface of the rod (46). The adjustment component comprises: an adjustment frame (24), the adjustment frame (24) being slidably disposed in the connection groove (13) and fixedly connected to the surface of the fixed clamp (5), and a first support spring (25) being connected between the adjustment frame (24) and the support seat (14); Two linkage blocks (26), the two linkage blocks (26) being symmetrically fixedly connected to two sides of the adjustment frame (24), the linkage blocks (26) having an inclined surface; Two push rods (27), the two push rods (27) are inserted through the mounting inner ring (12), one end of the push rods is in contact with the inclined surface of the linkage block (26), and the other end is fixedly connected to the annular moving plate (17).

4. The automatic chamfering device for bars in a steel rolling production line according to claim 3, characterized in that: It also includes a cleaning assembly, which is used to pre-clean the end surface of the rod (46) entering the mounting ring (3), and the cleaning assembly includes: A mounting sleeve (30), the mounting sleeve (30) being rotatably connected to a port of the mounting ring (3) for the rod (46) to enter; A plurality of cleaning brushes (31), the plurality of cleaning brushes (31) being fixedly connected to the inner wall of the mounting sleeve (30) and distributed in a ring array; A rotation drive unit, the rotation drive unit is used to drive the mounting sleeve (30) to rotate.

5. The automatic chamfering device for bars in a steel rolling production line according to claim 4, characterized in that: The rotary drive unit comprises: A follower gear (32), wherein the follower gear (32) is fixedly sleeved on the surface of the mounting sleeve (30); A first motor (33), the first motor (33) is fixedly mounted on the top of the mounting ring (3), and an output end is fixedly connected to a driving gear (34), the driving gear (34) is meshed with a follower gear (32).

6. The automatic chamfering device for bars in a steel rolling production line according to claim 4, characterized in that: The cleaning brush (31) is in the shape of a spiral blade, and the contact trajectory between the cleaning brush (31) and the rod (46) is a spiral trajectory.

7. The automatic chamfering device for bars in a steel rolling production line according to claim 6, characterized in that: The chamfering device comprises: A sliding seat (35), the sliding seat (35) being slidably mounted on the top surface of the processing table (2); a second thread drive assembly, the second thread drive assembly being used for threadably driving the sliding seat (35) to move; A second motor (36), the second motor (36) being fixedly mounted on the top surface of the sliding seat (35), and having an output end fixedly connected to a rotating frame (37); A movable frame (38), wherein the movable frame (38) is connected to the rotating frame (37) via an elastic member; Two tool racks (39), the two tool racks (39) are symmetrically fixedly connected to the movable rack (38), and a tool (40) is fixedly mounted on the end of the tool rack (39).

8. The automatic chamfering device for bars in a steel rolling production line according to claim 7, characterized in that: The elastic member comprises: Two connecting rods (43), both connecting rods (43) penetrate through and are inserted into the rotating frame (37), one end of the connecting rods is fixedly connected to the surface of the moving frame (38), and the other end is fixedly connected to a limiting ring (45); Two third support springs (44), the two third support springs (44) are respectively sleeved on the surfaces of the two connecting rods (43) and are located between the moving frame (38) and the rotating frame (37).

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