Metal bar end continuous grinding device and method thereof

Abstract

The invention discloses a continuous grinding device and method for the end of a metal rod, and belongs to the technical field of metal rod grinding, the continuous grinding device comprises a rack and a centerless grinding machine, and further comprises a continuous pushing device, a positioning device, an overturning discharging device, a linkage cleaning device and a conveying device, the rack is arranged on the right side of the centerless grinding machine, and the centerless grinding machine is arranged on the rack; the continuous pushing device used for continuously lifting the metal bars is installed on the rear side of the middle of the rack, the positioning device used for positioning the lifted metal bars is installed on the front side of the middle of the rack, and the overturning discharging device used for conducting double-station feeding and discharging on the polished metal bars is installed on the left side of the rack. In this way, the posture of the metal bar can be automatically adjusted during continuous feeding, feeding and discharging can be synchronously conducted at the same time, cutting fluid on the metal bar can be automatically cleaned in the polishing and discharging process, and the machining efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of metal rod grinding, in particular to a metal rod end continuous grinding device and method. Background Art

[0002] Continuous grinding of the end of a metal rod is a process operation for fine processing of the end of a metal rod. It aims to change the surface quality, shape accuracy and smoothness of the end of the metal rod through a continuous grinding process. When finishing the steps at the end of a longer metal rod, grinding can be used. Rapid and continuous grinding can be performed while ensuring that the axis of the metal rod does not deviate. When the metal rod is long, the clamping requirements are also high. After clamping and positioning, it is ground to ensure processing accuracy. A centerless grinder is a grinder that does not require the axis of the workpiece to be positioned for grinding. The workpiece is fed along the axis of the grinding wheel for grinding. The axial feed of the workpiece is achieved by adjusting the slight inclination angle of the guide wheel axis. It is suitable for grinding slender cylindrical workpieces, short shafts without center holes, and sleeve-type workpieces. It can be processed continuously without retracting the tool and without positioning the axis of the metal rod. It is very suitable for efficient processing of the end steps of longer metal rods.

[0003] The Chinese patent with publication number CN117754370A proposes a metal rod grinding device, including a grinding wheel grinding mechanism, a metal rod clamping mechanism, an X-axis position adjustment mechanism and a Y-axis position adjustment mechanism, wherein the metal rod clamping mechanism is used to clamp and rotate the metal rod to be ground, the metal rod clamping mechanism includes a movable clamping part and a fixed clamping part, the two ends of the metal rod are respectively clamped on the movable clamping part and the fixed clamping part, the movable clamping part is installed on the Y-axis limit adjustment mechanism, the position of the movable clamping part relative to the fixed clamping part is adjusted by the Y-axis position adjustment mechanism to adjust the grinding length of the metal rod, the Y-axis position adjustment mechanism is installed on the X-axis position adjustment mechanism, the X-axis position adjustment mechanism is used to adjust the grinding diameter of the metal rod, the grinding wheel grinding mechanism drives the grinding wheel to rotate and grind the metal rod, the grinding wheel grinding mechanism includes a motor, a reduction mechanism and a grinding wheel, and the motor drives the grinding wheel to rotate through the reduction mechanism.

[0004] However, the technical solution of this patent has the following problems: This patent cannot automatically adjust the posture of the metal rod when loading, cannot quickly switch between dual-station loading and unloading of the polished metal rod, and cannot automatically clean the cutting fluid on the metal rod during the process of polishing and unloading.

[0005] Based on this, the present invention designs a metal rod end continuous grinding device and method to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device and method for continuously grinding the end of a metal rod.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A continuous grinding device for the end of a metal rod comprises a frame and a centerless grinder, and also comprises: a continuous pushing device, a positioning device, a flipping and unloading device, a linkage cleaning device and a conveying device. The frame is arranged on the right side of the centerless grinder, the continuous pushing device for continuously lifting the metal rod is installed on the rear side of the middle part of the frame, the positioning device for positioning the lifted metal rod is installed on the front side of the middle part of the frame, the flipping and unloading device for double-station loading and unloading of the polished metal rod is installed on the left side of the frame, the linkage cleaning device for cleaning the cutting fluid while pushing the polished metal rod out of the centerless grinder is installed on the middle side of the centerless grinder, and the conveying device for transporting the cleaned metal rod is installed on the right side of the frame, the continuous pushing device comprises: a loading frame, an inclined plate, a first linear module, a lifting plate, a T-shaped plate, a first guide rail, a first slider, a special-shaped bracket and a gas spring Spring, the loading frame is fixedly mounted on the rear side of the middle part of the frame, the inclined plate is fixedly mounted on the front side of the loading frame, the first linear module is fixedly mounted on the lower side of the middle part of the frame, the lifting plate is slidably connected to the front side of the loading frame, the upper side of the T-shaped plate is slidably connected to the lower side of the inside of the lifting plate, the lower side of the T-shaped plate is fixedly mounted on the output end of the first linear module, the two first guide rails are symmetrically fixedly mounted on the left and right side walls of the loading frame along the central axis of the loading frame, the first slider is slidably connected to the first guide rail, the upper side of the special-shaped bracket is fixedly mounted on the first slider, and the lower side of the special-shaped bracket is fixedly mounted on the output end of the first linear module, one end of the gas spring is fixedly mounted on the lower side of the lifting plate, and the other end of the gas spring is fixedly mounted on the frame, and the surfaces of the upper sides of the inclined plate and the lifting plate are both inclined surfaces for normal unloading of metal rods to be processed.

[0008] Furthermore, the continuous pushing device also includes: a first sliding rod, a horizontal plate, a first spring and a through-type photoelectric sensor. The plurality of the first sliding rods are slidably connected to the left and right sides of the loading frame. The horizontal plate is fixedly installed on the upper side of the first sliding rod. The first spring is arranged on the first sliding rod. One end of the first spring is close to the horizontal plate, and the other end of the first spring is close to the loading frame. The first spring is used to buffer when the horizontal plate falls. The plurality of through-type photoelectric sensors are fixedly installed on the lower side wall of the horizontal plate.

[0009] Furthermore, the continuous pushing device also includes: a first rotating cylinder, an extension plate and a first pneumatic clamp, the first rotating cylinder is fixedly installed on the middle side of the horizontal plate, the extension plate is fixedly installed on the output end of the first rotating cylinder, and a plurality of the first pneumatic clamps are fixedly installed on the extension plate.

[0010] Furthermore, the positioning device includes: a first baffle and a first cylinder, a plurality of the first baffles are fixedly mounted on the front side wall of the inclined plate, a slot is provided on the front side of the inclined plate for accommodating a metal rod, the first cylinder is fixedly mounted on the right side of the inclined plate, an output end of the first cylinder is arranged in the slot, and the first cylinder is used to push the metal rod in the slot to reach a standard position.

[0011] Furthermore, the positioning device also includes: a second linear module, an L-shaped bracket, a third cylinder and a second pneumatic clamp, the second linear module is fixedly mounted on the front side of the middle part of the frame, the L-shaped bracket is fixedly mounted on the output end of the second linear module, the third cylinder is fixedly mounted on one end of the L-shaped bracket away from the output end of the second linear module, and the second pneumatic clamp is fixedly mounted on the output end of the third cylinder.

[0012] Furthermore, the flipping and unloading device includes: a rotating frame, a second rotating cylinder and a guide wheel, one end of the rotating frame is rotatably connected to the left side of the frame through a rotating shaft, the second rotating cylinder is fixedly installed on the left side of the frame, the other end of the rotating frame is fixedly connected to the output end of the second rotating cylinder, and multiple guide wheels are rotatably connected to the upper and lower sides of the rotating frame through rotating shafts. The flipping and unloading device also includes: a third pneumatic clamp, and multiple third pneumatic clamps are fixedly installed on the upper and lower sides of the rotating frame.

[0013] Furthermore, the linkage cleaning device includes: a fourth cylinder, a transverse connecting frame, a second guide rail, a second slider and an L-shaped push plate, the fourth cylinder is fixedly installed on the left side of the centerless grinder, multiple transverse connecting frames are fixedly installed on the upper side of the centerless grinder, the second guide rail is fixedly installed on the lower side of the transverse connecting frame, multiple second sliders are slidably connected to the lower side of the second guide rail, the L-shaped push plate is fixedly installed on the lower side of the second slider, and the left side of the L-shaped push plate is fixedly connected to the output end of the fourth cylinder.

[0014] Furthermore, the linkage cleaning device also includes: a shell, a dovetail guide, a first rack, a gear, a second rack, a second sliding rod, a connecting plate, a cylindrical sponge and a second spring. The shell is fixedly mounted on the lower side of the transverse connecting frame, and a plurality of dovetail guides are fixedly mounted in the shell. Dovetail grooves are provided on the first rack and the second rack. The first rack is slidably connected to the dovetail guide and slides left and right on the shell along the dovetail guide. The second rack is slidably connected to the dovetail guide and slides up and down on the shell along the dovetail guide. The gear is rotatably connected in the shell through a rotating shaft, and the gear and the first rack are mutually engaged. The gear is meshed with each other, and the plurality of second sliding rods are slidably connected to the front and rear sides of the shell. The connecting plate is fixedly installed on the lower side of the second sliding rod. The plurality of cylindrical sponges are rotatably connected to the lower side of the connecting plate by a rotating shaft. The cylindrical sponge is tilted on the lower side of the connecting plate, which is beneficial for the cylindrical sponge to smoothly approach the metal rod and gradually wrap the metal rod when following the up and down movement of the connecting plate. The cylindrical sponge is regularly squeezed to maintain its effect of absorbing cutting fluid. The second spring is arranged on the second sliding rod, and the upper side of the second spring is fixedly connected to the second sliding rod, and the lower side of the second spring is close to the shell.

[0015] Furthermore, the conveying device includes: a belt conveyor, a feed frame and a second baffle, the belt conveyor is fixedly installed on the front side of the frame, the feed frame is fixedly installed on the right side of the frame, the input end of the feed frame is close to the rear side of the belt conveyor, the second baffle is fixedly installed on the right side of the belt conveyor, and the second baffle is inclined, which is conducive to guiding the polished and cleaned metal rods to be transported to the feed frame through the belt conveyor.

[0016] In order to better achieve the purpose of the present invention, the present invention also provides a method for continuously grinding the end of a metal rod, comprising the following steps: Step 1: Place multiple metal bars to be processed in the loading frame, and the output end of the first linear module moves upward to drive the T-shaped plate to move upward. At this time, the compressed gas spring slowly extends, slowly lifts the lifting plate, and lifts a metal bar to be processed. The lifting speed is limited by the T-shaped plate and is consistent with the upward moving speed of the T-shaped plate. The T-shaped plate moves upward to the preset position and stops. At this time, the top of the lifting plate moves to a position flush with the top of the inclined plate, and the metal bar to be processed moves to the first pneumatic clamp position. The first pneumatic clamp restricts it so that it does not roll back and forth. The through-beam photoelectric sensor detects the width of the two ends of the metal bar to be processed to determine the step position of the metal bar; Step 2: If the metal rod step is on the left side, there is no need to adjust the metal rod posture. The output end of the first linear module continues to move upward to drive the T-shaped plate to move upward. The output end of the first linear module continues to move upward and drives the special-shaped bracket to move upward at the same time. The special-shaped bracket moves upward and contacts the first sliding rod, driving the first sliding rod to move upward. The first sliding rod moves upward to drive the cross plate to move upward. The cross plate moves upward to drive the first rotary cylinder, the extension plate and the first pneumatic clamp to move upward. The first pneumatic clamp moves upward to release the restriction on the metal rod to be processed, so that the metal rod to be processed rolls down along the inclined plate toward the front side of the inclined plate under the action of gravity for normal unloading. Step 3: If the metal rod step is on the right side, the metal rod posture needs to be adjusted, the first pneumatic clamp is started to clamp the metal rod to be processed, the output end of the first linear module moves downward to drive the T-shaped plate, the T-shaped plate moves downward to drive the lifting plate to move downward, the lifting plate moves downward a preset distance, the output end of the first rotary cylinder rotates 180 degrees to drive the extension plate, the first pneumatic clamp and the metal rod to be processed to rotate 180 degrees, so that the metal rod step to be processed rotates to the left side, and then the normal unloading of step 2 can be carried out; Step 4: The metal rod to be processed rolls down along the inclined plate toward the front side of the inclined plate and rolls into the slot on the front side of the inclined plate. The output end of the first cylinder extends to drive the first baffle to move to the left. The first baffle moves to the left and drives the metal rod to be processed to move to the left and close to the left side wall of the inclined plate, so that the metal rod to be processed moves to the standard position. The output end of the third cylinder of the positioning device moves downward to drive the second pneumatic clamp to move downward. The second pneumatic clamp starts to clamp the metal rod to be processed in the slot. The output end of the third cylinder moves upward to drive the second pneumatic clamp The output end of the second linear module moves to the left, driving the L-shaped bracket to move to the left. The L-shaped bracket moves to the left, driving the third cylinder, the second pneumatic clamp and the metal rod to be processed to move to the left, so that the left step of the metal rod to be processed moves to the upper side of the centerless grinder. At this time, the right side of the metal rod to be processed is located on the upper side of the flipping and unloading device. The output end of the third cylinder moves downward, driving the second pneumatic clamp to move downward. The second pneumatic clamp releases the metal rod to be processed, so that the metal rod to be processed enters the centerless grinder for processing. Step 5: After the metal rod to be processed is processed in the centerless grinder, the output end of the fourth cylinder of the linkage cleaning device is extended to drive the L-shaped push plate to move to the right. The L-shaped push plate moves to the right to push out the metal rod that has been polished and cleaned. The L-shaped push plate moves to the right to drive the first rack to move to the right. The first rack moves to the right to rotate the gear. The rotation of the gear drives the second rack to move downward. The second rack moves downward to drive the connecting plate to move downward. The connecting plate moves downward to drive the second sliding rod and the cylindrical sponge to move downward, so that the second spring undergoes elastic deformation and is compressed. The cylindrical sponge moves downward to lightly touch the left side of the polished metal rod, so that the upper cut The cutting fluid is absorbed by the cylindrical sponge. The cylindrical sponge is softer and easier to stick to the metal rod. It will not drive the metal rod to move when it moves downward. The cleaned metal rod completely enters the multiple third pneumatic clamp positions of the flip unloading device. The third pneumatic clamp is started to clamp the metal rod that has been polished and cleaned. The output end of the second rotary cylinder rotates 180 degrees to drive the rotating frame, the guide wheel, the third pneumatic clamp and the polished and cleaned metal rod to rotate 180 degrees. After the polished and cleaned metal rod is rotated 180 degrees, it is located directly above the conveying device. The belt conveyor is started to transport the polished and cleaned metal rod to the unloading frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention places a plurality of metal bars to be processed in a loading frame of a continuous pushing device, and the output end of the first linear module moves upward to drive the T-shaped plate to move upward. The T-shaped plate is matched with a lifting plate to load the metal bars to be processed one by one. The through-beam photoelectric sensor of the continuous pushing device detects the width of both ends of the metal bars to be processed to determine the step position of the metal bars. The first rotating cylinder, the extension plate and the first pneumatic clamp of the continuous pushing device cooperate to quickly change the state of the metal bars to be processed, so that the step position of the metal bars to be processed each time they are unloaded is on the left, which is conducive to automatically adjusting the posture of the metal bars during continuous loading; 2. The polished and cleaned metal rod is clamped by starting the third pneumatic clamp, and the output end of the second rotary cylinder rotates 180 degrees to drive the rotating frame, the guide wheel, the third pneumatic clamp and the polished and cleaned metal rod to rotate 180 degrees. The polished and cleaned metal rod is located directly above the conveying device after rotating 180 degrees. The third pneumatic clamp releases the polished and cleaned metal rod to make it fall onto the conveying device and be transported away by the conveying device. The polished and cleaned metal rod is located directly above the conveying device after rotating 180 degrees. At this time, the positioning device can continue to load again. The double-station coordination is conducive to simultaneous unloading while loading, thereby improving processing efficiency. 3. The L-shaped push plate moves rightward and is close to the left side of the first rack. The L-shaped push plate moves rightward and drives the first rack to move rightward. The first rack moves rightward and causes the gear to rotate. The rotation of the gear drives the second rack to move downward. The second rack moves downward and drives the connecting plate to move downward. The connecting plate moves downward and drives the second sliding rod and the cylindrical sponge to move downward, so that the second spring undergoes elastic deformation and is compressed. The cylindrical sponge moves downward and lightly touches the left side of the polished metal rod, so that the cutting fluid thereon is adsorbed by the cylindrical sponge (the cylindrical sponge is softer and easier to stick to the metal rod. When it moves downward, it will not drive the metal rod to move. The cleaned metal rod completely enters the multiple third pneumatic clamping jaws of the flipping and unloading device. After being clamped by the flipping and unloading device, it is flipped and unloaded, which is beneficial to automatically clean the cutting fluid on the metal rod during the grinding and unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 It is a front view of the present invention; Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 4 A top view of the present invention; Figure 5 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ; Figure 6 The schematic diagram of the partial structure of the continuous pushing device and positioning device of the present invention is shown in FIG. Figure 1 ; Figure 7 for Figure 6 A magnified view of middle; Figure 8 The schematic diagram of the partial structure of the continuous pushing device and positioning device of the present invention is shown in FIG. Figure 2 ; Fig. 9 It is a partial structural schematic diagram of the continuous material pushing device of the present invention; Fig.10 It is a three-dimensional cross-sectional view of a partial structural schematic diagram of the continuous material pushing device of the present invention; Fig.11 The schematic diagram of the partial structure of the linkage cleaning device of the present invention is as follows Figure 1 ; Fig.12 The schematic diagram of the partial structure of the linkage cleaning device of the present invention is as follows Figure 2 ; Fig.13 It is a partial structural schematic diagram of the overturning and unloading device of the present invention.

[0020] The numbers in the figure represent: 1. Frame; 2. Centerless grinder; 3. Continuous pusher; 31. Loading frame; 32. Inclined plate; 33. First linear module; 34. Lifting plate; 35. T-shaped plate; 36. First guide rail; 37. First slider; 38. Special-shaped bracket; 39. Gas spring; 310. First sliding rod; 311. Horizontal plate; 312. First spring; 313. Opposing photoelectric sensor; 314. First rotary cylinder; 315. Extension plate; 316. First pneumatic clamp; 4. Positioning device; 41. First baffle; 42. First cylinder; 43. Second linear module; 44. L-shaped bracket; 45. Third cylinder; 46. ​​Second pneumatic gripper; 5. Overturning unloading device; 51. Rotating frame; 52. Second rotating cylinder; 53. Guide wheel; 54. Third pneumatic gripper; 6. Linkage cleaning device; 61. Fourth cylinder; 62. Transverse connecting frame; 63. Second guide rail; 64. Second slide block; 65. L-shaped push plate; 66. Housing; 67. Dovetail guide rail; 68. First rack; 69. Gear; 610. Second rack; 611. Second sliding rod; 612. Connecting plate; 613. Cylindrical sponge; 614. Second spring; 7. Conveying device; 71. Belt conveyor; 72. Unloading frame; 73. Second baffle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention will be further described below in conjunction with the embodiments.

[0023] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0024] Embodiment 1: In some embodiments, please refer to Figure 1-Figure 13, a continuous grinding device for the end of a metal rod, comprising a frame 1 and a centerless grinder 2, and also comprising: a continuous pushing device 3, a positioning device 4, a flipping and unloading device 5, a linkage cleaning device 6 and a conveying device 7, the frame 1 is arranged on the right side of the centerless grinder 2, the continuous pushing device 3 for continuously lifting the metal rod is installed on the rear side of the middle part of the frame 1, the positioning device 4 for positioning the lifted metal rod is installed on the front side of the middle part of the frame 1, the flipping and unloading device 5 for double-station loading and unloading of the polished metal rod is installed on the left side of the frame 1, the linkage cleaning device 6 for cleaning the cutting fluid while pushing the polished metal rod out of the centerless grinder 2 is installed on the middle side of the centerless grinder 2, and the conveying device 7 for transporting the cleaned metal rod is installed on the right side of the frame 1, the continuous pushing device 3 comprises: a loading frame 31, an inclined plate 32, a first linear module 33, a lifting plate 34, a T-shaped plate 35, a first guide rail 36, a first slider 37, a special-shaped bracket 38 and a gas spring 39, the upper The material frame 31 is fixedly mounted on the rear side of the middle part of the frame 1, the inclined plate 32 is fixedly mounted on the front side of the loading frame 31, the first linear module 33 is fixedly mounted on the lower side of the middle part of the frame 1, the lifting plate 34 is slidably connected to the front side of the loading frame 31, the upper side of the T-shaped plate 35 is slidably connected to the lower side of the inside of the lifting plate 34, and the lower side of the T-shaped plate 35 is fixedly mounted on the output end of the first linear module 33. The two first guide rails 36 are fixedly mounted on the left and right side walls of the loading frame 31 symmetrically along the central axis of the loading frame 31, the first slider 37 is slidably connected to the first guide rail 36, the upper side of the special-shaped bracket 38 is fixedly mounted on the first slider 37, and the lower side of the special-shaped bracket 38 is fixedly mounted on the output end of the first linear module 33, one end of the gas spring 39 is fixedly mounted on the lower side of the lifting plate 34, and the other end of the gas spring 39 is fixedly mounted on the frame 1, and the upper surfaces of the inclined plate 32 and the lifting plate 34 are both inclined surfaces for normal unloading of metal rods to be processed.

[0025] The continuous pushing device 3 continuously lifts the metal rod, the positioning device 4 adjusts the posture and positions the lifted metal rod, the flip unloading device 5 performs double-station loading and unloading of the polished metal rod and the unpolished metal rod, the linkage cleaning device 6 pushes the polished metal rod out of the centerless grinder 2 while cleaning the cutting fluid, and the conveying device 7 transports the cleaned metal rod.

[0026] A plurality of metal rods to be processed are placed in the loading frame 31 of the continuous pushing device 3. The output end of the first linear module 33 moves upward, driving the T-shaped plate 35 to move upward. At this time, the compressed gas spring 39 slowly extends, slowly lifting the lifting plate 34, and lifting a metal rod to be processed. The lifting speed is limited by the T-shaped plate 35 and is consistent with the upward moving speed of the T-shaped plate 35. The T-shaped plate 35 moves upward to a preset position and stops. At this time, the top of the lifting plate 34 moves to a position flush with the top of the inclined plate 32, and a metal rod to be processed is lifted to a position flush with the top of the inclined plate 32.

[0027] The continuous pushing device 3 also includes: a first sliding rod 310, a transverse plate 311, a first spring 312 and a through-type photoelectric sensor 313. Multiple first sliding rods 310 are slidably connected to the left and right sides of the loading frame 31. The transverse plate 311 is fixedly installed on the upper side of the first sliding rod 310. The first spring 312 is arranged on the first sliding rod 310. One end of the first spring 312 is close to the transverse plate 311, and the other end of the first spring 312 is close to the loading frame 31. The first spring 312 is used to buffer the transverse plate 311 when it falls. Multiple through-type photoelectric sensors 313 are fixedly installed on the lower side wall of the transverse plate 311.

[0028] The through-beam photoelectric sensor 313 detects the width of the two ends of the metal rod to be processed to determine the step position of the metal rod. If the step of the metal rod is on the left, there is no need to adjust the posture of the metal rod and the material can be unloaded normally. If the step of the metal rod is on the right, the posture of the metal rod needs to be adjusted so that it becomes the posture with the step on the left, and then the material is unloaded normally. When the step of the metal rod is on the left, the output end of the first linear module 33 continues to move upward and drives the T-shaped plate 35 to move upward. The output end of the first linear module 33 continues to move upward and drives the special-shaped bracket 38 to move upward at the same time. The special-shaped bracket 38 moves upward and contacts the first sliding rod 310, driving the first sliding rod 310 to move upward. The first sliding rod 310 moves upward and drives the cross plate 311 to move upward. The cross plate 311 moves upward so that the metal rod can be unloaded normally. When the step of the metal rod is on the right, the step of the metal rod is adjusted to the left, and then the same steps of unloading are performed.

[0029] The continuous pushing device 3 also includes: a first rotating cylinder 314, an extension plate 315 and a first pneumatic clamp 316. The first rotating cylinder 314 is fixedly installed on the middle side of the horizontal plate 311, the extension plate 315 is fixedly installed on the output end of the first rotating cylinder 314, and a plurality of the first pneumatic clamps 316 are fixedly installed on the extension plate 315.

[0030] A metal rod to be processed is lifted to a position flush with the top of the inclined plate 32. At this time, the metal rod to be processed is located at the position of the first pneumatic clamp 316. The first pneumatic clamp 316 prevents it from rolling down along the inclined plate 32 toward the front side of the inclined plate 32. If the metal rod step is on the left side, the cross plate 311 moves upward to drive the first rotating cylinder 314, the extension plate 315 and the first pneumatic clamp 316 to move upward. The first pneumatic clamp 316 moves upward to make the metal rod to be processed roll down along the inclined plate 32 toward the front side of the inclined plate 32 for normal unloading.

[0031] If the metal rod step is on the right side, the first pneumatic clamp 316 starts to clamp the metal rod to be processed, the output end of the first linear module 33 moves downward to drive the T-shaped plate 35, the T-shaped plate 35 moves downward to drive the lifting plate 34 to move downward, the lifting plate 34 moves downward a preset distance, the output end of the first rotary cylinder 314 rotates 180 degrees to drive the extension plate 315, the first pneumatic clamp 316 and the metal rod to be processed to rotate 180 degrees, so that the metal rod step to be processed rotates to the left side, and normal unloading can be carried out at this time.

[0032] The positioning device 4 includes: a first baffle 41 and a first cylinder 42. A plurality of the first baffles 41 are fixedly mounted on the front side wall of the inclined plate 32. A slot is provided on the front side of the inclined plate 32 for accommodating a metal rod. The first cylinder 42 is fixedly mounted on the right side of the inclined plate 32. The output end of the first cylinder 42 is arranged in the slot. The first cylinder 42 is used to push the metal rod in the slot to reach the standard position.

[0033] The metal rod to be processed rolls down along the inclined plate 32 toward the front side of the inclined plate 32 and rolls into the groove on the front side of the inclined plate 32. The output end of the first cylinder 42 extends and drives the first baffle 41 to move leftward. The first baffle 41 moves leftward and drives the metal rod to be processed to move leftward and close to the left side wall of the inclined plate 32, so that the metal rod to be processed moves to the standard position.

[0034] The positioning device 4 also includes: a second linear module 43, an L-shaped bracket 44, a third cylinder 45 and a second pneumatic clamp 46. The second linear module 43 is fixedly mounted on the front side of the middle part of the frame 1, the L-shaped bracket 44 is fixedly mounted on the output end of the second linear module 43, the third cylinder 45 is fixedly mounted on one end of the L-shaped bracket 44 away from the output end of the second linear module 43, and the second pneumatic clamp 46 is fixedly mounted on the output end of the third cylinder 45.

[0035] The output end of the third cylinder 45 of the positioning device 4 moves downward, driving the second pneumatic clamp 46 to move downward. The second pneumatic clamp 46 starts to clamp the metal rod to be processed in the slot. The output end of the third cylinder 45 moves upward, driving the second pneumatic clamp 46 and the metal rod to be processed to move upward. The output end of the second linear module 43 moves to the left, driving the L-shaped bracket 44 to move to the left. The L-shaped bracket 44 moves to the left, driving the third cylinder 45, the second pneumatic clamp 46 and the metal rod to be processed to move to the left, so that the left step of the metal rod to be processed moves to the upper side of the centerless grinder 2. At this time, the right side of the metal rod to be processed is located on the upper side of the flipping and unloading device 5. The output end of the third cylinder 45 moves downward, driving the second pneumatic clamp 46 to move downward. The second pneumatic clamp 46 releases the metal rod to be processed, so that the metal rod to be processed enters the centerless grinder 2 for processing.

[0036] Embodiment 2: In some embodiments, Figure 1-Figure 13 As shown, as a preferred embodiment of the present invention, the flipping and unloading device 5 includes: a rotating frame 51, a second rotating cylinder 52 and a guide wheel 53, one end of the rotating frame 51 is rotatably connected to the left side of the frame 1 through a rotating shaft, the second rotating cylinder 52 is fixedly installed on the left side of the frame 1, the other end of the rotating frame 51 is fixedly connected to the output end of the second rotating cylinder 52, and the multiple guide wheels 53 are rotatably connected to the upper and lower sides of the rotating frame 51 through the rotating shaft. The flipping and unloading device 5 also includes: a third pneumatic clamp 54, and the multiple third pneumatic clamps 54 are fixedly installed on the upper and lower sides of the rotating frame 51.

[0037] The guide wheel 53 of the flipping unloading device 5 assists in supporting the metal rod to be processed and reduces the rotational resistance of the metal rod to be processed. After the metal rod to be processed is processed in the centerless grinder 2 and is pushed out and cleaned by the linkage cleaning device 6, the third pneumatic clamp 54 starts to clamp the metal rod that has been ground and cleaned. The output end of the second rotary cylinder 52 rotates one hundred and eighty degrees to drive the rotating frame 51, the guide wheel 53, the third pneumatic clamp 54 and the metal rod that has been ground and cleaned to rotate one hundred and eighty degrees. After the metal rod that has been ground and cleaned rotates one hundred and eighty degrees, it is located directly above the conveying device 7. The third pneumatic clamp 54 releases the metal rod that has been ground and cleaned, causing it to fall onto the conveying device 7 and be transported away by the conveying device 7.

[0038] The polished and cleaned metal rod is rotated 180 degrees and is located directly above the conveying device 7. At this time, the positioning device 4 can continue to load the material again, which is conducive to loading and unloading of the double-station material and improving the processing efficiency.

[0039] The linkage cleaning device 6 includes: a fourth cylinder 61, a transverse connecting frame 62, a second guide rail 63, a second slider 64 and an L-shaped push plate 65. The fourth cylinder 61 is fixedly installed on the left side of the centerless grinder 2, multiple transverse connecting frames 62 are fixedly installed on the upper side of the centerless grinder 2, the second guide rail 63 is fixedly installed on the lower side of the transverse connecting frame 62, multiple second sliders 64 are slidably connected to the lower side of the second guide rail 63, the L-shaped push plate 65 is fixedly installed on the lower side of the second slider 64, and the left side of the L-shaped push plate 65 is fixedly connected to the output end of the fourth cylinder 61.

[0040] The output end of the fourth cylinder 61 of the linkage cleaning device 6 extends and drives the L-shaped push plate 65 to move to the right. The L-shaped push plate 65 moves to the right to push out the metal rod that has been polished and cleaned, so that the metal rod that has been polished and cleaned completely enters the position of multiple third pneumatic clamps 54 of the flipping and unloading device 5, so as to completely clamp it.

[0041] The linkage cleaning device 6 also includes: a shell 66, a dovetail guide 67, a first rack 68, a gear 69, a second rack 610, a second sliding rod 611, a connecting plate 612, a cylindrical sponge 613 and a second spring 614. The shell 66 is fixedly installed on the lower side of the transverse connecting frame 62, and a plurality of dovetail guides 67 are fixedly installed in the shell 66. Dovetail grooves are provided on the first rack 68 and the second rack 610. The first rack 68 is slidably connected to the dovetail guide 67 and slides left and right on the shell 66 along the dovetail guide 67. The second rack 610 is slidably connected to the dovetail guide 67 and slides up and down on the shell 66 along the dovetail guide 67. The gear 69 is rotatably connected to the shell 66 through a rotating shaft. The gear 69 and the first rack 68 are mutually connected. The second rack 610 and the gear 69 are meshed with each other, and multiple second sliding rods 611 are slidably connected to the front and rear sides of the shell 66. The connecting plate 612 is fixedly installed on the lower side of the second sliding rod 611. Multiple cylindrical sponges 613 are rotatably connected to the lower side of the connecting plate 612 through a rotating shaft. The cylindrical sponge 613 is tilted on the lower side of the connecting plate 612, which is beneficial for the cylindrical sponge 613 to smoothly approach the metal rod and gradually wrap the metal rod when following the connecting plate 612 to move up and down. The cylindrical sponge 613 is regularly squeezed to maintain its effect of absorbing cutting fluid. The second spring 614 is arranged on the second sliding rod 611, and the upper side of the second spring 614 is fixedly connected to the second sliding rod 611, and the lower side of the second spring 614 is close to the shell 66.

[0042] The L-shaped push plate 65 moves to the right and is close to the left side of the first rack 68. The L-shaped push plate 65 moves to the right and drives the first rack 68 to move to the right. The first rack 68 moves to the right to make the gear 69 rotate. The gear 69 rotates and drives the second rack 610 to move downward. The second rack 610 moves downward and drives the connecting plate 612 to move downward. The connecting plate 612 moves downward and drives the second sliding rod 611 and the cylindrical sponge 613 to move downward, so that the second spring 614 is elastically deformed and compressed. The cylindrical sponge 613 moves downward and lightly touches the left side of the polished metal rod, so that the cutting fluid thereon is absorbed by the cylindrical sponge 613. The cylindrical sponge 613 is softer and easier to stick to the metal rod. At the same time, it will not drive the metal rod to move when moving downward. The cleaned metal rod completely enters the position of multiple third pneumatic clamps 54 of the flipping and unloading device 5. The flipping and unloading device 5 clamps it and flips it to unload it, which is beneficial to automatically clean the cutting fluid on the metal rod during the grinding and unloading process.

[0043] The conveying device 7 includes: a belt conveyor 71, a blanking frame 72 and a second baffle 73. The belt conveyor 71 is fixedly installed on the front side of the frame 1, and the blanking frame 72 is fixedly installed on the right side of the frame 1. The input end of the blanking frame 72 is close to the rear side of the belt conveyor 71. The second baffle 73 is fixedly installed on the right side of the belt conveyor 71. The second baffle 73 is tilted, which is conducive to guiding the polished and cleaned metal rods to be transported to the blanking frame 72 through the belt conveyor 71.

[0044] The third pneumatic clamp 54 releases the polished and cleaned metal rod to make it fall onto the belt conveyor 71 of the conveying device 7 . The belt conveyor 71 starts to convey the polished and cleaned metal rod to the unloading frame 72 .

[0045] Embodiment 3: In some embodiments, Figure 1-Figure 13 As shown, as a preferred embodiment of the present invention, a method for continuously grinding the end of a metal rod comprises the following steps: Step 1: A plurality of metal bars to be processed are placed in the loading frame 31, and the output end of the first linear module 33 moves upward to drive the T-shaped plate 35 to move upward. At this time, the compressed gas spring 39 slowly extends, and the lifting plate 34 is slowly lifted to lift a metal bar to be processed. The lifting speed is limited by the T-shaped plate 35 and is consistent with the upward moving speed of the T-shaped plate 35. The T-shaped plate 35 moves upward to a preset position and stops. At this time, the top of the lifting plate 34 moves to a position flush with the top of the inclined plate 32, and the metal bar to be processed moves to the position of the first pneumatic clamp 316. The first pneumatic clamp 316 restricts it so that it does not roll back and forth. The through-beam photoelectric sensor 313 detects the width of the two ends of the metal bar to be processed to determine the step position of the metal bar; Step 2: If the metal rod step is on the left side, there is no need to adjust the metal rod posture. The output end of the first linear module 33 continues to move upward to drive the T-shaped plate 35 to move upward. The output end of the first linear module 33 continues to move upward and drives the special-shaped bracket 38 to move upward. The special-shaped bracket 38 moves upward and contacts the first sliding rod 310, driving the first sliding rod 310 to move upward. The first sliding rod 310 moves upward to drive the cross plate 311 to move upward. The cross plate 311 moves upward to drive the first rotary cylinder 314, the extension plate 315 and the first pneumatic clamp 316 to move upward. The first pneumatic clamp 316 moves upward to release the restriction on the metal rod to be processed, so that the metal rod to be processed rolls down along the inclined plate 32 toward the front side of the inclined plate 32 under the action of gravity for normal unloading. Step 3: If the metal rod step is on the right side, the metal rod posture needs to be adjusted, the first pneumatic clamp 316 is started to clamp the metal rod to be processed, the output end of the first linear module 33 moves downward to drive the T-shaped plate 35, the T-shaped plate 35 moves downward to drive the lifting plate 34 to move downward, the lifting plate 34 moves downward a preset distance, the output end of the first rotary cylinder 314 rotates 180 degrees to drive the extension plate 315, the first pneumatic clamp 316 and the metal rod to be processed to rotate 180 degrees, so that the metal rod step to be processed rotates to the left side, and then the normal unloading of step 2 can be carried out; Step 4: The metal rod to be processed rolls down along the inclined plate 32 toward the front side of the inclined plate 32 and rolls into the slot on the front side of the inclined plate 32. The output end of the first cylinder 42 extends to drive the first baffle 41 to move leftward. The first baffle 41 moves leftward to drive the metal rod to be processed to move leftward and close to the left side wall of the inclined plate 32, so that the metal rod to be processed moves to the standard position. The output end of the third cylinder 45 of the positioning device 4 moves downward to drive the second pneumatic clamp 46 to move downward. The second pneumatic clamp 46 starts to clamp the metal rod to be processed in the slot. The output end of the third cylinder 45 moves upward to drive the second pneumatic clamp The claw 46 and the metal rod to be processed move upward, the output end of the second linear module 43 moves to the left to drive the L-shaped bracket 44 to move to the left, and the L-shaped bracket 44 moves to the left to drive the third cylinder 45, the second pneumatic clamping jaw 46 and the metal rod to be processed to move to the left, so that the left step of the metal rod to be processed moves to the upper side of the centerless grinder 2. At this time, the right side of the metal rod to be processed is located on the upper side of the flipping and unloading device 5. The output end of the third cylinder 45 moves downward to drive the second pneumatic clamping jaw 46 to move downward. The second pneumatic clamping jaw 46 releases the metal rod to be processed, so that the metal rod to be processed enters the centerless grinder 2 for processing; Step 5: The metal rod to be processed is processed in the centerless grinder 2, and the output end of the fourth cylinder 61 of the linkage cleaning device 6 is extended to drive the L-shaped push plate 65 to move to the right. The L-shaped push plate 65 moves to the right to push out the metal rod that has been polished and cleaned. The L-shaped push plate 65 moves to the right to drive the first rack 68 to move to the right. The first rack 68 moves to the right to rotate the gear 69. The gear 69 rotates and drives the second rack 610 to move downward. The second rack 610 moves downward to drive the connecting plate 612 to move downward. The connecting plate 612 moves downward to drive the second sliding rod 611 and the cylindrical sponge 613 to move downward, so that the second spring 614 is elastically deformed and compressed, and the cylindrical sponge 613 moves downward to lightly touch the polished metal. The left side of the rod makes the cutting fluid on it be absorbed by the cylindrical sponge 613. The cylindrical sponge 613 is softer and easier to stick to the metal rod. At the same time, it will not drive the metal rod to move when moving downward. The cleaned metal rod completely enters the position of multiple third pneumatic clamps 54 of the flipping and unloading device 5. The third pneumatic clamps 54 start to clamp the metal rod that has been polished and cleaned. The output end of the second rotary cylinder 52 rotates one hundred and eighty degrees to drive the rotating frame 51, the guide wheel 53, the third pneumatic clamp 54 and the metal rod that has been polished and cleaned to rotate one hundred and eighty degrees. After the metal rod that has been polished and cleaned is rotated one hundred and eighty degrees, it is located directly above the conveying device 7. The belt conveyor 71 starts to convey the metal rod that has been polished and cleaned to the unloading frame 72.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for continuously grinding the end of a metal rod, comprising a frame (1) and a centerless grinder (2), characterized in that: Also includes: A continuous material pushing device (3), a positioning device (4), a flip material unloading device (5), a linkage cleaning device (6) and a conveying device (7), wherein the frame (1) is arranged on the right side of the centerless grinder (2), the continuous material pushing device (3) is installed on the rear side of the middle part of the frame (1), the positioning device (4) is installed on the front side of the middle part of the frame (1), the flip material unloading device (5) is installed on the left side of the frame (1), the linkage cleaning device (6) is installed on the middle side of the centerless grinder (2), and the conveying device (7) is installed on the right side of the frame (1). The continuous material pushing device (3) comprises: a loading frame (31), an inclined plate (32), a first linear module (33), a lifting plate (34), a T-shaped plate (35), a first guide rail (36), a first slide block (37), a special-shaped bracket (38) and a gas spring (39), and the loading frame (31) is fixedly installed on the middle side of the frame (1). The inclined plate (32) is fixedly mounted on the front side of the loading frame (31); the first linear module (33) is fixedly mounted on the lower side of the frame (1); the lifting plate (34) is slidably connected to the front side of the loading frame (31); the upper side of the T-shaped plate (35) is slidably connected in the lifting plate (34); the lower side of the T-shaped plate (35) is fixedly mounted on the output end of the first linear module (33); the two first guide rails (36) are fixedly mounted on the left and right sides of the loading frame (31); the first slider (37) is slidably connected to the first guide rails (36); the upper side of the special-shaped bracket (38) is fixedly mounted on the first slider (37); the lower side of the special-shaped bracket (38) is fixedly mounted on the output end of the first linear module (33); one end of the gas spring (39) is fixedly mounted on the lower side of the lifting plate (34); and the other end of the gas spring (39) is fixedly mounted on the frame (1).

2. The metal rod end continuous grinding device according to claim 1, characterized in that: The continuous pushing device (3) further comprises: a first sliding rod (310), a transverse plate (311), a first spring (312) and a beam-type photoelectric sensor (313); a plurality of the first sliding rods (310) are slidably connected to the left and right sides of the loading frame (31); the transverse plate (311) is fixedly mounted on the upper side of the first sliding rod (310); the first spring (312) is arranged on the first sliding rod (310); one end of the first spring (312) is in close contact with the transverse plate (311); the other end of the first spring (312) is in close contact with the loading frame (31); the first spring (312) is used to buffer the transverse plate (311) when it falls; and a plurality of the beam-type photoelectric sensors (313) are fixedly mounted on the lower side wall of the transverse plate (311).

3. The metal rod end continuous grinding device according to claim 2, characterized in that: The continuous material pushing device (3) further comprises: a first rotating cylinder (314), an extension plate (315) and a first pneumatic clamp (316); the first rotating cylinder (314) is fixedly mounted on the middle side of the transverse plate (311); the extension plate (315) is fixedly mounted on the output end of the first rotating cylinder (314); and a plurality of the first pneumatic clamps (316) are fixedly mounted on the extension plate (315).

4. The metal rod end continuous grinding device according to claim 3, characterized in that: The positioning device (4) comprises: a first baffle (41) and a first cylinder (42); a plurality of the first baffles (41) are fixedly mounted on a front side wall of the inclined plate (32); a slot is provided on the front side of the inclined plate (32); the first cylinder (42) is fixedly mounted on the right side of the inclined plate (32); and an output end of the first cylinder (42) is arranged in the slot.

5. The metal rod end continuous grinding device according to claim 4, characterized in that: The positioning device (4) further comprises: a second linear module (43), an L-shaped bracket (44), a third cylinder (45) and a second pneumatic clamp (46), wherein the second linear module (43) is fixedly mounted on the front side of the middle part of the frame (1), the L-shaped bracket (44) is fixedly mounted on the output end of the second linear module (43), the third cylinder (45) is fixedly mounted on an end of the L-shaped bracket (44) away from the output end of the second linear module (43), and the second pneumatic clamp (46) is fixedly mounted on the output end of the third cylinder (45).

6. The metal rod end continuous grinding device according to claim 5, characterized in that: The overturning and unloading device (5) comprises: a rotating frame (51), a second rotating cylinder (52) and a guide wheel (53); one end of the rotating frame (51) is rotatably connected to the left side of the frame (1) via a rotating shaft; the second rotating cylinder (52) is fixedly mounted on the left side of the frame (1); the other end of the rotating frame (51) is fixedly connected to the output end of the second rotating cylinder (52); a plurality of guide wheels (53) are rotatably connected to the upper and lower sides of the rotating frame (51) via rotating shafts; and the overturning and unloading device (5) further comprises: a third pneumatic clamp (54); a plurality of the third pneumatic clamps (54) are fixedly mounted on the upper and lower sides of the rotating frame (51).

7. The metal rod end continuous grinding device according to claim 6, characterized in that: The linkage cleaning device (6) comprises: a fourth cylinder (61), a transverse connecting frame (62), a second guide rail (63), a second slide block (64) and an L-shaped push plate (65), wherein the fourth cylinder (61) is fixedly mounted on the left side of the centerless grinder (2), a plurality of the transverse connecting frames (62) are fixedly mounted on the upper side of the centerless grinder (2), the second guide rail (63) is fixedly mounted on the lower side of the transverse connecting frame (62), a plurality of the second slide blocks (64) are slidably connected to the lower side of the second guide rail (63), the L-shaped push plate (65) is fixedly mounted on the lower side of the second slide block (64), and the left side of the L-shaped push plate (65) is fixedly connected to the output end of the fourth cylinder (61).

8. The metal rod end continuous grinding device according to claim 7, characterized in that: The linkage cleaning device (6) further comprises: a housing (66), a dovetail guide rail (67), a first rack (68), a gear (69), a second rack (610), a second sliding rod (611), a connecting plate (612), a cylindrical sponge (613) and a second spring (614); the housing (66) is fixedly mounted on the lower side of the transverse connecting frame (62); a plurality of dovetail guide rails (67) are fixedly mounted in the housing (66); dovetail grooves are provided on the first rack (68) and the second rack (610); the first rack (68) is slidably connected to the dovetail guide rail (67) and slides left and right on the housing (66) along the dovetail guide rail (67); the second rack (610) is slidably connected to the dovetail guide rail (67) and slides up and down on the housing (66) along the dovetail guide rail (67); The gear (69) is rotatably connected to the housing (66) via a rotating shaft, the gear (69) and the first rack (68) are meshed with each other, the second rack (610) and the gear (69) are meshed with each other, a plurality of the second sliding rods (611) are slidably connected to the front and rear sides of the housing (66), the connecting plate (612) is fixedly installed on the lower side of the second sliding rod (611), a plurality of the cylindrical sponges (613) are rotatably connected to the lower side of the connecting plate (612) via a rotating shaft, the cylindrical sponges (613) are obliquely arranged on the lower side of the connecting plate (612), the second spring (614) is arranged on the second sliding rod (611), the upper side of the second spring (614) is fixedly connected to the second sliding rod (611), and the lower side of the second spring (614) is in close contact with the housing (66).

9. The metal rod end continuous grinding device according to claim 8, characterized in that: The conveying device (7) comprises: a belt conveyor (71), a material discharge frame (72) and a second baffle (73); the belt conveyor (71) is fixedly mounted on the front side of the frame (1); the material discharge frame (72) is fixedly mounted on the right side of the frame (1); an input end of the material discharge frame (72) is closely attached to the rear side of the belt conveyor (71); and the second baffle (73) is fixedly mounted on the right side of the belt conveyor (71).

10. A method for a metal rod end continuous grinding device, used in the metal rod end continuous grinding device of claim 9, characterized in that: The following steps are involved: Step 1: A plurality of metal bars to be processed are placed in the loading frame (31), and the output end of the first linear module (33) moves upward to drive the T-shaped plate (35) to move upward. At this time, the compressed gas spring (39) slowly extends, and the lifting plate (34) is slowly lifted to lift a metal bar to be processed. The lifting speed is limited by the T-shaped plate (35) and is consistent with the upward moving speed of the T-shaped plate (35). The T-shaped plate (35) moves upward to a preset position and stops. At this time, the top of the lifting plate (34) moves to a position flush with the top of the inclined plate (32), and the metal bar to be processed moves to the position of the first pneumatic clamp (316). The first pneumatic clamp (316) restricts it so that it does not roll forward and backward. The through-beam photoelectric sensor (313) detects the width of the two ends of the metal bar to be processed to determine the step position of the metal bar; Step 2: If the metal rod step is on the left side, there is no need to adjust the posture of the metal rod. The output end of the first linear module (33) continues to move upward to drive the T-shaped plate (35) to move upward. The output end of the first linear module (33) continues to move upward and drives the special-shaped bracket (38) to move upward. The special-shaped bracket (38) moves upward and contacts the first sliding rod (310), driving the first sliding rod (310) to move upward. The first sliding rod (310) moves upward to drive the horizontal plate (311) to move upward. The horizontal plate (311) moves upward to drive the first rotating cylinder (314), the extension plate (315) and the first pneumatic clamp (316) to move upward. The first pneumatic clamp (316) moves upward to release the restriction on the metal rod to be processed, so that the metal rod to be processed rolls down along the inclined plate (32) toward the front side of the inclined plate (32) under the action of gravity, and normal unloading is performed. Step 3: If the metal rod step is on the right side, the metal rod posture needs to be adjusted, the first pneumatic clamp (316) is started to clamp the metal rod to be processed, the output end of the first linear module (33) moves downward to drive the T-shaped plate (35), the T-shaped plate (35) moves downward to drive the lifting plate (34) to move downward, the lifting plate (34) moves downward a preset distance, the output end of the first rotary cylinder (314) rotates 180 degrees to drive the extension plate (315), the first pneumatic clamp (316) and the metal rod to be processed to rotate 180 degrees, so that the metal rod step to be processed rotates to the left side, and then normal unloading of the material in step 2 can be carried out; Step 4: The metal rod to be processed rolls down along the inclined plate (32) toward the front side of the inclined plate (32) and rolls into the slot on the front side of the inclined plate (32). The output end of the first cylinder (42) extends to drive the first baffle (41) to move leftward. The first baffle (41) moves leftward to drive the metal rod to be processed to move leftward and closely adhere to the left side wall of the inclined plate (32), so that the metal rod to be processed moves to the standard position. The output end of the third cylinder (45) of the positioning device (4) moves downward to drive the second pneumatic clamp (46) to move downward. The second pneumatic clamp (46) is started to clamp the metal rod to be processed in the slot. The output end of the third cylinder (45) moves upward to drive the second pneumatic clamp The claw (46) and the metal rod to be processed move upward, the output end of the second linear module (43) moves leftward to drive the L-shaped bracket (44) to move leftward, the L-shaped bracket (44) moves leftward to drive the third cylinder (45), the second pneumatic clamp (46) and the metal rod to be processed to move leftward, so that the left step of the metal rod to be processed moves to the upper side of the centerless grinder (2), at which time the right side of the metal rod to be processed is located on the upper side of the flipping and unloading device (5), the output end of the third cylinder (45) moves downward to drive the second pneumatic clamp (46) to move downward, the second pneumatic clamp (46) releases the metal rod to be processed, so that the metal rod to be processed enters the centerless grinder (2) for processing; Step 5: The metal rod to be processed is processed in the centerless grinder (2), and the output end of the fourth cylinder (61) of the linkage cleaning device (6) is extended to drive the L-shaped push plate (65) to move rightward. The L-shaped push plate (65) moves rightward to push out the metal rod to be polished and cleaned. The L-shaped push plate (65) moves rightward to drive the first rack (68) to move rightward. The first rack (68) moves rightward to cause the gear (69) to rotate. The gear (69) rotates and drives the second rack (610) to move downward. The second rack (610) moves downward and drives the connecting plate (612) to move downward. The connecting plate (612) moves downward and drives the second sliding rod (611) and the cylindrical sponge (613) to move downward, so that the second spring (614) undergoes elastic deformation and is compressed. The cylindrical sponge (613) moves downward and lightly touches the polished rod. The left side of the ground metal rod causes the cutting fluid thereon to be absorbed by the cylindrical sponge (613). The cylindrical sponge (613) is relatively soft and easier to adhere to the metal rod. When it moves downward, it will not drive the metal rod to move. The cleaned metal rod completely enters the position of the plurality of third pneumatic clamps (54) of the flipping unloading device (5). The third pneumatic clamps (54) are started to clamp the metal rod that has been ground and cleaned. The output end of the second rotary cylinder (52) rotates 180 degrees to drive the rotating frame (51), the guide wheel (53), the third pneumatic clamps (54) and the metal rod that has been ground and cleaned to rotate 180 degrees. After the metal rod that has been ground and cleaned rotates 180 degrees, it is located directly above the conveying device (7). The belt conveyor (71) is started to convey the metal rod that has been ground and cleaned to the unloading frame (72).

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