A blanking device for a centerless machine tool

Abstract

The application discloses a blanking device of a centerless machine tool and relates to the technical field of intelligent manufacturing.The plurality of supporting rods are fixed around the rotating disc, and the rotating disc is arranged to be intermittently driven to rotate.The rotating control of the rotating disc is associated with the complete withdrawal action after bar grinding, and the bar after grinding on the discharge rack can be timely removed by means of rotary driving.In the rotating process, the bar can smoothly and stably roll and fall under the guidance of the first guide surface and the second guide surface, and the blanking operation is performed, which is favorable for avoiding the bar after grinding to stay on the discharge rack, further avoiding the bar being ground between the guide wheel and the grinding wheel from being blocked, effectively guaranteeing the stable effect of the bar being ground by the centerless machine tool, and being favorable for reducing the probability of surface burn and excessive grinding during bar grinding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent manufacturing, and particularly relates to a blanking device of a centerless machine tool. BACKGROUND

[0002] In the field of centerless grinding processing, the automation and high efficiency of bar workpieces are core requirements for improving production efficiency and product quality. The running stability of the blanking device directly affects the overall processing flow as a key link between grinding processing and subsequent processes.

[0003] In the prior art, the blanking device for bar centerless grinding machine tools mostly adopts an inclined chute structure. The grinding completed bar is guided from the discharge port of the machine tool to the designated collection area through the track type chute. However, in the actual batch processing scene, in order to ensure the stability of blanking, the discharge port is usually set to be longer to temporarily store the ground bar. Then, the bar is pushed into the chute structure for blanking operation one by one through the continuous discharge of the bar. In this process, when the bar is temporarily stored in the discharge port, it will physically block the bar in the grinding state that is traveling along the preset track in the machine tool, causing the travel speed of the bar in the grinding machine to be forced to slow down, breaking the original stable grinding rhythm. On the one hand, the bar stays in the grinding area for a longer time, and the continuous friction between the grinding wheel and the workpiece surface will generate excessive heat, which is easy to exceed the heat dissipation capacity of the cooling system, causing the workpiece surface to appear burn defects. On the other hand, the excessive grinding time will make the actual removal amount of the workpiece exceed the process setting value, causing excessive grinding problems and affecting the processing stability. SUMMARY

[0004] The purpose of the present application is to solve the problem in the prior art that when the centerless grinding machine is blanking, the movement of the bar at the discharge port is pushed by the bar in the grinding state in the machine tool, which easily causes the travel speed of the bar in the machine tool to slow down, leading to overheating and burning of the bar surface during centerless grinding and excessive grinding problems. A blanking device of a centerless machine tool is proposed.

[0005] In order to solve the problems in the prior art, the present application adopts the following technical solutions:

[0006] The utility model provides a kind of blanking device of centerless machine tool, including machine tool main body, guide wheel and grinding wheel are installed and are arranged side by side in the rotation of machine tool main body, the front end of machine tool main body is fixedly installed with the feeding frame being arranged between guide wheel and grinding wheel, the rear end of machine tool main body is fixedly installed with the discharge frame being correspondingly arranged with feeding frame, slot is opened in discharge frame, guide plate is fixedly installed in the rotation of machine tool main body and is arranged between guide wheel and grinding wheel, and guide plate is fixedly connected between feeding frame and discharge frame, discharging mechanism is arranged in the rear of machine tool main body, and discharging mechanism includes shaft seat, shaft rod is rotatably installed in the parallel of feeding frame and discharge frame in the rotation of shaft seat, servo motor for driving shaft rod rotation is fixedly installed on shaft seat, two turntables are sequentially installed from front to back on shaft rod, a plurality of circumferentially distributed support rods are fixedly installed on the outside of each turntable, a plurality of support rods on front and rear two turntables are correspondingly arranged, the circumferential trajectory of front a plurality of support rods is correspondingly arranged with slot, the circumferential trajectory of rear a plurality of support rods is in the rear of discharge frame, one side of support rod is set as first guide surface, the other side of support rod is set as second guide surface, and storage mechanism is correspondingly arranged with discharging mechanism in the rear of machine tool main body.

[0007] Preferably, the first guide surface is a smooth surface, and the second guide surface is a rough surface.

[0008] Preferably, the end of the support rod away from the turntable is fixedly installed with a stopper, and the stopper is arranged on the first guide surface.

[0009] Preferably, the storage mechanism includes a base, and the top of the base is provided with a guide slot, the side of the guide slot away from the support rod is provided with a downwardly inclined structure, an arc-shaped notch is formed on the side of the base close to the support rod, and the curvature of the arc-shaped notch is adapted to the rotation track of the support rod.

[0010] Preferably, a collection box is placed on the side of the base away from the arc-shaped notch, and a V-shaped frame is arranged in the collection box.

[0011] Preferably, a first buffer mechanism is installed on the turntable, and the first buffer mechanism includes a plurality of fixed plates fixedly installed on the turntable, each fixed plate is between two adjacent support rods, a plug rod is slidingly inserted into the fixed plate, and a connecting plate is fixedly installed on the side of the plug rod away from the center of the turntable, each connecting plate is installed between the first guide surface and the second guide surface arranged on the two adjacent support rods, and a first spring is elastically supported between the fixed plate and the connecting plate.

[0012] Preferably, the side of the connecting plate away from the inserting rod is provided with a V-shaped structure, both ends of the connecting plate close to the first guide surface and the second guide surface are hingedly provided with sealing plates, and torsional springs are installed at the hinged positions of the sealing plates and the connecting plate, one of the sealing plates is in contact with the first guide surface under the elastic support of the torsional spring, and the other sealing plate is in contact with the second guide surface under the elastic support of the torsional spring.

[0013] Preferably, a second buffering mechanism is installed on the supporting rod, the second buffering mechanism comprises a plurality of pressing plates rotatably installed in the supporting rod and protruding outward of the second guide surface, a supporting block is installed in the supporting rod, a second spring for elastically supporting the pressing plates is fixed on the supporting block, and a limiting block for limiting the outward rotation of the pressing plates is fixed on the side of the supporting rod close to the second guide surface.

[0014] Preferably, the supporting block is slidingly installed in the supporting rod, a sliding rod is slidingly installed on the side of the supporting rod close to the first guide surface, the sliding rod is parallel to the supporting rod, an inclined block is slidingly attached to the side of the supporting block away from the second spring, the inclined block is fixedly connected with the sliding rod, a screw rod parallel to the supporting rod is rotatably installed in the supporting rod, and the screw rod is threadedly screwed with the sliding rod.

[0015] Preferably, the shaft rod is provided in a square rod shape, the center of the rotating disc is fixedly installed with a shaft sleeve, the shaft sleeve is slidingly sleeved on the shaft rod, a screw is threadedly screwed on the shaft sleeve, and the screw points to the outer surface of the shaft rod.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. In the present application, a plurality of supporting rods are fixedly installed around the rotating disc, and the rotating disc is arranged to be intermittently driven to rotate, the rotation of the rotating disc is associated with the complete withdrawal action after the bar stock is ground, and the bar stock after grinding on the discharge rack can be timely removed by rotating and pushing, in the rotating process, the bar stock can smoothly and stably roll down and be discharged under the guidance of the first guide surface and the second guide surface, which is beneficial to avoid the bar stock after grinding remaining on the discharge rack, and further avoid the bar stock being ground between the guide wheel and the grinding wheel being blocked, which can effectively guarantee the stability of the bar stock being ground by the centerless machine tool, and is beneficial to reduce the probability of surface burn and excessive grinding of the bar stock during grinding.

[0018] 2. In the application, by setting the first buffering mechanism between the two adjacent supporting rods, for connecting the first guide surface and the second guide surface, so that the bar can be buffered to a certain extent during the rolling process, at the same time, by setting the second buffering mechanism in the supporting rod, acting on the second guide surface, so that the bar needs to press the pressing plate to consume the rolling potential energy when rolling on the second guide surface, and adjusting the buffering strength of the second buffering mechanism, so that the device can adapt to different specifications of the bar to guide the stable feeding, and cooperate with each other, which can effectively guarantee the smoothness and stability of the bar during the guiding and storage after the grinding process. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the application, and form a part of the application. The illustrative embodiments of the application and their descriptions are used to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0020] Figure 1 is a front perspective view of the application;

[0021] Figure 2 is a back perspective view of the application;

[0022] Figure 3 is a top view of the application;

[0023] Figure 4 is a sectional view of A-A in the application; Figure 3

[0024] Figure 5 is a sectional view of B-B in the application; Figure 3

[0025] Figure 6 is an enlarged view of D in the application; Figure 5

[0026] Figure 7 is a sectional view of C-C in the application; Figure 3

[0027] Figure 8 is a back perspective view of the feeding mechanism and the storage mechanism of the application;

[0028] Figure 9 is a back perspective view of the feeding mechanism of the application;

[0029] Figure 10 is a perspective view of the first buffering mechanism of the application;

[0030] Figure 11 is a perspective view of the second buffering mechanism of the application.

[0031] In the drawings:​​​​

[0032] 1. Machine tool body; 11. Guide wheel; 12. Grinding wheel; 13. Feeding frame; 14. Discharging frame; 15. Notch; 16. Guide plate;

[0033] 2. Shaft base; 21. Shaft rod; 22. Servo motor; 23. Turntable; 24. Supporting rod; 25. First guide surface; 26. Second guide surface; 27. Stop block;

[0034] 3. Base; 31. Guide groove; 32. Arc-shaped notch; 33. Material collecting box; 34. V-shaped frame;

[0035] 4. Fixed plate; 41. Inserting rod; 42. Connecting plate; 43. First spring; 44. Cover plate;

[0036] 5. Pressing plate; 51. Supporting block; 52. Second spring; 53. Limiting block; 54. Slide rod; 55. Inclined block; 56. Screw rod;

[0037] 6. Shaft sleeve; 61. Bolt. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0039] Embodiment: The embodiment provides a blanking device of a centerless machine tool, referring to Figure 1 - Figure 11, Specifically, it comprises a machine tool body 1, the guide wheel 11 and the grinding wheel 12 are arranged side by side and are rotatably installed in the machine tool body 1, the feeding rack 13 is fixedly installed at the front end of the machine tool body 1 and is arranged between the guide wheel 11 and the grinding wheel 12, the discharging rack 14 is fixedly installed at the rear end of the machine tool body 1 and is arranged correspondingly to the feeding rack 13, the notch 15 is formed in the discharging rack 14, the guide plate 16 is fixedly installed in the machine tool body 1 and is arranged between the guide wheel 11 and the grinding wheel 12, and the guide plate 16 is fixedly connected between the feeding rack 13 and the discharging rack 14, the discharging mechanism is arranged at the rear of the machine tool body 1 and comprises the shaft seat 2, the shaft rod 21 is rotatably installed in the shaft seat 2 and is arranged in parallel to the feeding rack 13 and the discharging rack 14, the servo motor 22 is fixedly installed on the shaft seat 2 and is used to drive the shaft rod 21 to rotate, the two turntables 23 are installed in sequence from front to back on the shaft rod 21, the plurality of supporting rods 24 are fixedly installed on the outer side of each turntable 23 and are distributed around, the plurality of supporting rods 24 on the front and rear turntables 23 are arranged one by one in correspondence, the circumferential track of the plurality of supporting rods 24 at the front is arranged correspondingly to the notch 15, the circumferential track of the plurality of supporting rods 24 at the rear is located at the rear of the discharging rack 14, the first guide surface 25 is arranged on one side of the supporting rod 24, the second guide surface 26 is arranged on the other side of the supporting rod 24, and the storage mechanism is arranged correspondingly to the discharging mechanism at the rear of the machine tool body 1.

[0040] The storage mechanism comprises the base 3, the top of the base 3 is provided with the guide groove 31, the side, away from the supporting rod 24, of the guide groove 31 is arranged as a downwardly inclined structure, the side, close to the supporting rod 24, of the base 3 is provided with the arc-shaped notch 32, and the curvature of the arc-shaped notch 32 is adapted to the rotating track of the supporting rod 24, and the side, away from the arc-shaped notch 32, of the base 3 is placed with the material collecting box 33, and the V-shaped frame 34 is arranged in the material collecting box 33, and one side of the V-shaped frame 34 is connected to the guide groove 31.

[0041] When the device is used, the guide wheel 11 and the grinding wheel 12 are continuously rotated by the driving device, the bar workpiece enters between the guide wheel 11 and the grinding wheel 12 from the feeding rack 13, is erected on the guide plate 16 and is orderly moved backward under the rotation of the guide wheel 11 and the grinding wheel 12, in this process, the cylindrical surface of the bar is ground by the grinding wheel 12, the bar after grinding is guided out through the rear end of the guide plate 16, the rear half of the bar in the initial stage is erected on the discharging rack 14, and the front half of the bar is still in the grinding process between the guide wheel 11 and the grinding wheel 12, in this state, the movement of the bar to the discharging rack 14 can also be driven backward by the rotation of the guide wheel 11 and the grinding wheel 12, after the bar is completely ground, the bar is completely out of the guide wheel 11 and the grinding wheel 12, and the front end of the bar is no longer in contact with the guide wheel 11 and the grinding wheel 12.

[0042] In the above state, the rotation of the guide wheel 11 and the grinding wheel 12 also cannot provide power for the movement of the bar on the discharge rack 14. If the bar is discharged by the chute structure in the prior art, the power for the bar to move from the discharge rack 14 to the chute is usually from the forward guide wheel 11 and the grinding wheel 12 between the bar grinding processing. Through the movement of the bar between the forward guide wheel 11 and the grinding wheel 12 in the grinding state, a backward push is formed to drive the bar on the discharge rack 14 to continue to move backward and slide into the chute structure connected at the rear. In this process, the bar temporarily stored on the discharge rack 14 will block the bar between the guide wheel 11 and the grinding wheel 12, causing the bar to be ground for a longer time, affecting the processing stability, especially when the bar with heavy quality is centerless ground, the influence is particularly obvious.

[0043] When the device is used, the control of the discharging mechanism is related to the discharging rhythm of the bar on the discharge rack 14 after grinding. When the bar is ground by the grinding wheel 12 and moves to the discharge rack 14 and is completely separated from the guide wheel 11 and the grinding wheel 12, the servo motor 22 is powered on to drive the shaft 21 fixedly connected with the driving shaft to rotate, and then drive the two rotating discs 23 installed on the shaft 21 to rotate. According to the number of the supporting rods 24 installed around the single rotating disc 23, the angle of the rotating disc 23 is controlled to rotate each time. For example, when six supporting rods 24 are installed around the single rotating disc 23, the angle of the rotating disc 23 is controlled to rotate 60° each time. When the rotating disc 23 is not rotated, one of the supporting rods 24 is in the notch 15, and the first guide surface 25 on the supporting rod 24 is below the bar on the discharge rack 14. During the rotation of the rotating disc 23 and the supporting rod 24, the corresponding first guide surface 25 first contacts the bottom of the bar on the discharge rack 14. Through the rotation of the supporting rod 24, the bar on the discharge rack 14 is quickly lifted and discharged, so that the bar just separated from the guide wheel 11 and the grinding wheel 12 can be quickly removed and will not block the subsequent grinding processing of the bar in the guide wheel 11 and the grinding wheel 12.

[0044] The rotating disc 23 drives the intermittent rotation of the plurality of supporting rods 24, and the bar material on the discharging rack 14 is transported to the storage mechanism. During this process, when the bar material on the discharging rack 14 is quickly guided out by the supporting rods 24 arranged in pairs before and after, the first guide surface 25 is inclined downward due to the rotation of the supporting rods 24, which makes the lifted bar material slide downward along the first guide surface 25. With the rotating direction of the rotating disc 23 driving the rotation of the supporting rods 24 as the reference, the bar material will be temporarily stored between the adjacent two supporting rods 24. With the continuous rotation, when the adjacent supporting rods 24 in the rotation direction are connected to the guide groove 31 in the storage mechanism through rotation, the supporting rods 24 are inclined downward. At this time, the bar material between the adjacent two supporting rods 24 can slide along the second guide surface 26 to the above-mentioned supporting rods 24, and under the support of the supporting rods 24, it slides along the second guide surface 26 to the guide groove 31. After being guided by the guide groove 31, it slides into the V-shaped rack 34, and is orderly stacked and stored in the V-shaped rack 34 with the continuous feeding of the bar material.

[0045] In the device, the arc-shaped notch 32 is arranged on one side of the base 3 close to the feeding mechanism to provide space for the rotation of the supporting rods 24, so that the supporting rods 24 can be seamlessly connected to the guide groove 31 during rotation, thereby making the process of bar material sliding along the second guide surface 26 to the guide groove 31 more continuous and stable. In the device, the material collecting box 33 and the base 3 are arranged in a separable manner, which facilitates quick replacement of the material collecting box 33 when the bar material in the material collecting box 33 is fully stored. By arranging the V-shaped rack 34 in the material collecting box 33, and by the guidance of the V-shaped end wall in the V-shaped rack 34 and the inclined guidance of the guide groove 31, the bar material can be more smoothly stacked in the material collecting box 33, and is less likely to slide down with a large height difference, which can effectively prevent the bar material from being damaged by collision during storage.

[0046] In the specific implementation process, the first guide surface 25 is arranged as a smooth surface, and the second guide surface 26 is arranged as a rough surface. During the rolling process of the bar material, the frictional resistance provided by the second guide surface 26 is greater than that provided by the first guide surface 25. When the device is in use, the first guide surface 25 is arranged as a smooth surface, which makes the bar material roll downward along the first guide surface 25 more smoothly and quickly. The second guide surface 26 is arranged as a rough surface, which slows down the falling speed of the bar material when it rolls downward along the second guide surface 26. This can effectively prevent the bar material from falling to the guide groove 31 with a large height difference due to the excessive speed of the bar material sliding along the second guide surface 26 on the supporting rods 24 when the rotating disc 23 drives the rotation of the supporting rods 24 to connect to the storage mechanism, thereby preventing the bar material from being damaged by falling and colliding.

[0047] In the specific implementation process, as Figure 6 , Figure 8 and Figure 9As shown, the end of the supporting rod 24 away from the rotating disc 23 is fixedly installed with a stopper 27, and the stopper 27 is arranged on the first guide surface 25. When the device is in use, the stopper 27 is fixedly installed on the first guide surface 25 on one side of the supporting rod 24, and the stopper 27 is arranged at the end position away from the rotating disc 23. This makes the supporting rod 24 avoid the bar from sliding off the first guide surface 25 away from the rotating disc 23 when the bar is quickly guided out of the discharging frame 14 during the surrounding movement of the supporting rod 24, and is beneficial to ensure the stability of the bar after being machined by the centerless machine tool.

[0048] In the specific implementation process, as shown in Figure 6 and Figure 8 - Figure 10 As shown, the rotating disc 23 is installed with a first buffering mechanism, and the first buffering mechanism includes a plurality of fixed plates 4 fixedly arranged around the rotating disc 23. Each fixed plate 4 is between two adjacent supporting rods 24. A plug rod 41 is slidingly inserted into the fixed plate 4, and a connecting plate 42 is fixedly installed on the side of the plug rod 41 away from the center position of the rotating disc 23. Each connecting plate 42 is installed between the first guide surface 25 and the second guide surface 26 arranged on the two adjacent supporting rods 24. The outer side of the plug rod 41 movably sheaths a first spring 43 elastically supported between the fixed plate 4 and the connecting plate 42. The side of the connecting plate 42 away from the plug rod 41 is arranged in a V-shaped structure. The two ends of the connecting plate 42 close to the first guide surface 25 and the second guide surface 26 are both hingedly connected with a sealing plate 44, and the hinged position of the sealing plate 44 and the connecting plate 42 is installed with a torsional spring. One of the sealing plates 44 is in contact with the first guide surface 25 under the elastic support of the torsional spring, and the other sealing plate 44 is in contact with the second guide surface 26 under the elastic support of the torsional spring.

[0049] During the operation of the device, when the bar slides along the first guide surface 25 and temporarily stays between the two adjacent supporting rods 24, the first buffering mechanism is triggered. The bar rolling down the first guide surface 25 falls on the connecting plate 42, which applies a force to the connecting plate 42 to move in the direction of the rotating disc 23. In this process, the sliding friction between the fixed plate 4 and the plug rod 41 and the elastic support of the first spring 43 can buffer the impact caused by the rolling of the bar, avoid damage to the bar due to hard collision after sliding along the first guide surface 25, and effectively reduce the vibration impact of the rotating disc 23 during rotation, which is beneficial to ensure the stability of the precise operation of the discharging mechanism.

[0050] When the connecting plate 42 is used to buffer and receive the bar material, the end of the connecting plate 42 away from the insertion rod 41 is provided in a V-shaped structure, so as to position the falling and received bar material, so that the bar material can be accurately stopped at the middle position of the connecting plate 42. Meanwhile, the two sealing plates 44 are respectively hinged at the two ends of the connecting plate 42, and are elastically supported by the torsion spring at the hinged position, so that the two sealing plates 44 can always tightly fit the first guide surface 25 or the second guide surface 26 in the corresponding direction during the movement of the connecting plate 42 under force, which is beneficial to ensure the smoothness and stability of the bar material rolling on the first guide surface 25 to the middle position of the connecting plate 42, and then transferring from the middle position of the connecting plate 42 to the second guide surface 26.

[0051] In the specific implementation process, as shown in Figure 6 、 Figure 9 and Figure 11 , the second buffering mechanism is installed on the supporting rod 24, and the second buffering mechanism includes a plurality of pressing plates 5 which are rotationally installed in the supporting rod 24 and protrude outward from the second guide surface 26. The supporting rod 24 is provided with a supporting block 51, and the supporting block 51 is fixed with a second spring 52 for elastically supporting the pressing plate 5. The side of the supporting rod 24 close to the second guide surface 26 is fixed with a limiting block 53 for limiting the outward rotation of the pressing plate 5. The supporting block 51 is slidingly installed in the supporting rod 24, and the side of the supporting rod 24 close to the first guide surface 25 is slidingly installed with a sliding rod 54 which is parallel to the supporting rod 24. The side of the supporting block 51 away from the second spring 52 is slidingly fitted with an inclined block 55 which is fixedly connected with the sliding rod 54. The supporting rod 24 is rotationally installed with a screw rod 56 which is parallel to the supporting rod 24 and is threadedly connected with the sliding rod 54.

[0052] When the bar material slides downward along the second guide surface 26, the second buffering mechanism is triggered to press the pressing plates 5 which are uniformly distributed on the supporting rod 24. By virtue of the rotational connection between the pressing plate 5 and the supporting rod 24 and the elastic support of the second spring 52 to the pressing plate 5, the bar material is slightly blocked when passing through the pressing plate 5. By virtue of the elastic support of the second spring 52 to the pressing plate 5, the rolling speed of the bar material can be slowed down to a certain extent. The second guide surface 26 can provide a larger frictional resistance to cooperate with each other, so as to effectively ensure the stability of the bar material rolling on the second guide surface 26 to the guide groove 31.

[0053] The device, the block 53 is blocked, so that the limit position of the pressing plate 5 protruding outside the second guide surface 26 is limited, when the staff needs to adjust the amplitude of the second buffer mechanism to slow down the speed of the bar, the screw rod 56 can be rotated, the threaded connection between the screw rod 56 and the slide rod 54 can drive the slide rod 54 to move the inclined block 55 along the supporting rod 24, the supporting amplitude of the inclined block 55 to the supporting block 51 is adjusted by moving the inclined block 55, when the inclined block 55 is driven by the slide rod 54 to move towards the direction of the rotating disc 23, the supporting amplitude of the inclined block 55 to the supporting block 51 is increased, in this state, the second spring 52 is further compressed, the kinetic energy consumed by pressing the pressing plate 5 during the rolling of the bar is increased, so that the speed of the bar rolling down on the second guide surface 26 is further slowed down, when the inclined block 55 is driven by the slide rod 54 to move away from the direction of the rotating disc 23, the supporting amplitude of the inclined block 55 to the supporting block 51 is reduced, in this state, the compression of the second spring 52 is released to a certain extent, the kinetic energy consumed by pressing the pressing plate 5 during the rolling of the bar is reduced, so that the speed of the bar rolling down on the second guide surface 26 is increased, the above structure is set, so that the staff can control the speed of the bar rolling down on the second guide surface 26 to the guide groove 31 by adjusting the second buffer mechanism, so that different specifications and mass of the bar can be stably and orderly discharged.

[0054] In the specific implementation process, as shown in Figure 6 、 Figure 7 and Figure 10 , the shaft rod 21 is provided in the form of a square rod, the center of the rotating disc 23 is fixedly installed with a shaft sleeve 6, and the shaft sleeve 6 is slidably sleeved on the shaft rod 21, the shaft sleeve 6 is threadedly connected with a bolt 61, and the bolt 61 points to the outer surface of the shaft rod 21, when the device is used, the shaft sleeve 6 is fixedly installed at the center of the rotating disc 23, and the shaft sleeve 6 is slidably sleeved on the shaft rod 21, the sliding connection between the shaft sleeve 6 and the shaft rod 21 enables the distance between the front and rear rotating discs 23 to be flexibly adjusted, the distance between the front and rear rotating discs 23 is adjusted, the distance between the corresponding supporting rods 24 is synchronously adjusted, so that the device can hold different lengths of bars for rapid discharging, and the application range of the device can be effectively improved.

[0055] Specifically, the working principle of the present application is:

[0056] The bar is ground by the grinding wheel 12 between the guide wheel 11 and the grinding wheel 12, under the differential rotation of the guide wheel 11 and the grinding wheel 12, the bar is driven to move backward on the guide plate 16, and finally guided out on the discharge rack 14, at this time, the servo motor 22 drives the shaft rod 21 to rotate, drives the rotating disc 23 to rotate, and the plurality of supporting rods 24 are lifted out of the bar on the discharge rack 14 to separate quickly, accompanied by the inclination formed by the rotation of the supporting rod 24, so that the bar rolls along the first guide surface 25 to the adjacent two supporting rods 24, and is connected by the first buffering mechanism, and can be smoothly retained on the connecting plate 42 between the adjacent two supporting rods 24, and continues to rotate, the supporting rod 24 presents a downward inclination state, and is connected with the guide groove 31 in the storage mechanism, at this time, the bar on the connecting plate 42 between the adjacent two supporting rods 24 can roll along the second guide surface 26 to the guide groove 31, and in the rolling process, the second buffering mechanism can slow down the rolling speed, after being guided by the guide groove 31, the bar is finally collected on the V-shaped frame 34 in the collecting box 33, and the bar processing is completed.

[0057] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A blanking device of a centerless machine tool, comprising a machine tool body (1), characterized in that: The machine tool body (1) is provided with a guide wheel (11) and a grinding wheel (12), the front end of the machine tool body (1) is fixedly provided with a feeding rack (13), the rear end of the machine tool body (1) is fixedly provided with a discharging rack (14), the discharging rack (14) is provided with a notch (15), the machine tool body (1) is fixedly provided with a guide plate (16) between the guide wheel (11) and the grinding wheel (12), and the guide plate (16) is fixedly connected between the feeding rack (13) and the discharging rack (14), the rear of the machine tool body (1) is provided with a discharging mechanism, and the discharging mechanism comprises an axle seat (2), the axle seat (2) is rotatably provided with a shaft rod (21), the axle seat (2) is fixedly provided with a servo motor (22) for driving the shaft rod (21) to rotate, the shaft rod (21) is sequentially provided with two rotating discs (23) from front to back, a plurality of supporting rods (24) are fixedly arranged on the outer side of each rotating disc (23), the circumferential tracks of the front supporting rods (24) are correspondingly arranged with the notch (15), and the circumferential tracks of the rear supporting rods (24) are located at the rear of the discharging rack (14), one side of the supporting rod (24) is provided as a first guide surface (25), the other side of the supporting rod (24) is provided as a second guide surface (26), and the rear of the machine tool body (1) is provided with a storage mechanism corresponding to the discharging mechanism.

2. A blanking device for a centerless machine tool according to claim 1, characterized in that: The first guide surface (25) is a smooth surface, and the second guide surface (26) is a rough surface, wherein the frictional resistance provided by the second guide surface (26) is greater than the frictional resistance provided by the first guide surface (25) during the rolling of the bar.

3. The blanking device of a centerless machine bed as claimed in claim 1, wherein: The end of the supporting rod (24) away from the rotating disc (23) is fixedly provided with a stop block (27), and the stop block (27) is arranged on the first guide surface (25).

4. The blanking device of a centerless machine bed as claimed in claim 1, wherein: The storage mechanism comprises a base (3), and the top of the base (3) is provided with a guide groove (31), one side of the guide groove (31) away from the supporting rod (24) is provided as a downwardly inclined structure, and the base (3) is provided with an arc-shaped notch (32) close to the supporting rod (24), and the curvature of the arc-shaped notch (32) is matched with the rotating track of the supporting rod (24).

5. A blanking device for a centerless machine tool according to claim 4, characterized in that: The base (3) is provided with a material collecting box (33) away from the arc-shaped notch (32), and the material collecting box (33) is provided with a V-shaped frame (34), and one side of the V-shaped frame (34) is connected with the guide groove (31).

6. A blanking device for a centerless machine tool according to claim 1, characterized in that: The rotating disc (23) is provided with a first buffering mechanism, and the first buffering mechanism comprises a plurality of fixed plates (4) fixed around the rotating disc (23), each of the fixed plates (4) is between two adjacent supporting rods (24), a plug rod (41) is slidingly inserted on the fixed plate (4), a guide plate (42) is fixedly installed on the side of the plug rod (41) away from the center of the rotating disc (23), each of the guide plates (42) is installed between the first guide surface (25) and the second guide surface (26) provided on the two adjacent supporting rods (24), and the outer side of the plug rod (41) is movably sleeved with a first spring (43) elastically supported between the fixed plate (4) and the guide plate (42).

7. A blanking device for a centerless machine tool according to claim 6, characterized in that: The side of the guide plate (42) away from the plug rod (41) is provided in a V-shaped structure, both ends of the guide plate (42) close to the first guide surface (25) and the second guide surface (26) are hingedly connected with sealing plates (44), torsion springs are installed at the hinged positions of the sealing plates (44) and the guide plate (42), one of the sealing plates (44) is attached to the first guide surface (25) under the elastic support of the torsion spring, and the other sealing plate (44) is attached to the second guide surface (26) under the elastic support of the torsion spring.

8. The blanking device of a centerless machine bed as claimed in claim 1, wherein: The supporting rod (24) is provided with a second buffering mechanism, the second buffering mechanism comprises a plurality of pressing plates (5) rotatably installed in the supporting rod (24) and protruding outward from the second guide surface (26), a supporting block (51) is installed in the supporting rod (24), a second spring (52) for elastically supporting the pressing plate (5) is fixed on the supporting block (51), and a limiting block (53) for limiting the outward rotation of the pressing plate (5) is fixed on the side of the supporting rod (24) close to the second guide surface (26).

9. A blanking device for a centerless machine tool according to claim 8, characterized in that: The supporting block (51) is slidingly installed in the supporting rod (24), a sliding rod (54) is slidingly installed on the side of the supporting rod (24) close to the first guide surface (25), the sliding rod (54) is parallel to the supporting rod (24), an inclined block (55) is slidingly attached to the side of the supporting block (51) away from the second spring (52), the inclined block (55) is fixedly connected with the sliding rod (54), a screw rod (56) parallel to the supporting rod (24) is rotatably installed in the supporting rod (24), and the screw rod (56) is threadedly screwed with the sliding rod (54).

10. The blanking device of a centerless machine bed as claimed in claim 1, characterized in that: The shaft rod (21) is provided in a square rod structure, the center of the rotating disc (23) is fixedly installed with a shaft sleeve (6), the shaft sleeve (6) is slidingly sleeved on the shaft rod (21), and the shaft sleeve (6) is threadedly screwed with a bolt (61) pointing to the outer surface of the shaft rod (21).

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