An automatic feeding and discharging mechanism for a centerless grinding machine

Abstract

This application relates to an automatic loading and unloading mechanism for a centerless grinder, comprising: a loading mechanism; an unloading mechanism located on the side of the centerless grinder opposite to the loading mechanism; and two clamping mechanisms, each set positioned on one side of the centerless grinder, with one set connected to the loading conveyor belt and the other set connected to the unloading conveyor belt. Each clamping mechanism includes: a clamping frame connected to the frame of either the loading or unloading conveyor belt; clamping claws connected to the clamping frame, capable of moving towards or away from the center of the centerless grinder; and a supporting claw connected to the clamping claws, capable of moving towards or away from the centerline of the clamping claws, and able to abut against the side of the optical axis closest to the ground. The supporting plate design prevents workpieces from falling off during the movement of the clamping claws, thereby improving the safety of material handling in the centerless grinder.

Description

Technical Field

[0001] This application relates to the technical field of centerless grinding machines, and in particular to an automatic loading and unloading mechanism for centerless grinding machines. Background Technology

[0002] A centerless grinder is a machine tool that can perform high-precision grinding without axial positioning of the workpiece.

[0003] Chinese patent application number 201310176060.4 discloses a centerless grinder, including a machine base, an automatic loading and unloading device, a control cabinet, guide wheels, and a guide wheel dressing mechanism. The guide wheel dressing mechanism includes a dresser body and a moving mechanism mounted on the dresser body. The moving mechanism includes a first lead screw, a gear, and a second lead screw. The first lead screw is laterally movably connected to the dresser body, and the second lead screw is vertically mounted on the dresser body and movably connected to it. The gear is mounted on the dresser body and meshes with the first and second lead screws respectively. This invention achieves horizontal and vertical adjustment of the guide wheel through the cooperation of the lead screw and gear, making it more convenient to use and improving the accuracy and stability of the dresser.

[0004] Currently, centerless grinders mostly use automatic loading and unloading systems, which often employ robotic arms or grippers to hold and load materials. However, when robotic arms or grippers are holding workpieces such as optical shafts, the workpieces are prone to fall off as the robotic arms or grippers move, resulting in poor material handling safety for centerless grinders. Summary of the Invention

[0005] To improve the poor material handling safety of centerless grinders, this application provides an automatic loading and unloading mechanism for centerless grinders.

[0006] This application provides an automatic loading and unloading mechanism for a centerless grinding machine, which adopts the following technical solution:

[0007] An automatic loading and unloading mechanism for a centerless grinder includes:

[0008] The loading mechanism is used to transfer workpieces;

[0009] The unloading mechanism is used to transfer the workpiece, and the loading mechanism is located on the side of the centerless grinder away from the loading mechanism;

[0010] The clamping mechanism comprises two sets, which are respectively located on both sides of the centerless grinder. One set of clamping mechanisms is connected to the loading conveyor belt, and the other set is connected to the unloading conveyor belt. The clamping mechanism includes:

[0011] A clamping frame is connected to the loading or unloading conveyor belt;

[0012] A clamping jaw is used to clamp an optical axis. The clamping jaw is connected to the clamping frame and can move in a direction that is close to or away from the centerless grinding machine station.

[0013] The supporting claw is rotatably connected to the clamping claw, and the supporting claw can move in a direction close to or away from the center line of the clamping claw, and the supporting claw can abut against the side of the optical axis close to the ground.

[0014] Furthermore, the gripping claw includes:

[0015] Connecting seat, connected to the clamping frame;

[0016] The connecting rod is provided in two sets, with the two sets of connecting rods located on both sides of the connecting seat and connected to the connecting seat. The two sets of connecting rods move in a direction that moves closer to or further away from each other, and the connecting rods are connected to the supporting claws.

[0017] The clamping rods are provided in two sets, with one set of clamping rods corresponding to one set of connecting rods. The clamping rods are slidably connected to the corresponding connecting rods along the length of the connecting rods.

[0018] Furthermore, the supporting claw is slidably hinged to the connecting rod, and the connecting rod is provided with a drive assembly for driving the supporting claw to rotate.

[0019] Furthermore, the driving component includes:

[0020] The drive rod is fixedly connected to the supporting claw;

[0021] A transmission rod is rotatably connected to the drive rod, and the end of the transmission rod opposite to the drive rod is rotatably connected to a connecting rod.

[0022] Furthermore, a rotating shaft is rotatably connected to the supporting claw, and a rotating hole along its length is provided on the connecting rod, with the rotating shaft passing through the rotating hole.

[0023] Furthermore, the drive rod is rotatably connected to the transmission rod via a rotating shaft, and the drive assembly further includes:

[0024] A drive plate is connected to the clamping rod, and the drive plate is located on the movement trajectory of the rotating shaft.

[0025] Furthermore, the feeding mechanism includes:

[0026] The loading rack is mounted on one side of the centerless grinder;

[0027] The feeding conveyor belt is connected to the feeding frame via a drive mechanism.

[0028] The feeding bracket is located below the corresponding side clamping mechanism, and the feeding bracket is slidably connected to the feeding frame in a direction close to or away from the ground.

[0029] Furthermore, the feeding mechanism also includes a blocking plate, which is mounted above the feeding conveyor belt and can move in a direction close to or away from the feeding conveyor belt.

[0030] Furthermore, a hook plate is rotatably connected to the feeding rack, the hook plate is located on the moving trajectory of the feeding bracket, and a return spring is provided on the hook plate. The return spring connects the hook plate and the feeding rack. Under the action of the return spring, the hook plate rotates between the two optical axes.

[0031] Furthermore, the feeding mechanism includes:

[0032] The unloading rack is mounted on the side of the centerless grinder away from the loading rack;

[0033] The unloading conveyor belt operates in conjunction with the unloading frame.

[0034] Multiple feeding plates are provided, and the multiple feeding plates are arranged sequentially along the length direction of the feeding conveyor belt. The feeding plates are connected to the feeding conveyor belt, and adjacent feeding plates are spaced apart to form a receiving cavity for receiving the optical shaft.

[0035] In summary, the beneficial technical effects of this application are as follows:

[0036] 1. The support plate is designed to move to the side of the optical axis that is close to the ground, thereby supporting the optical axis. This makes it less likely for the workpiece to fall off when the gripper moves to hold the optical axis or other workpieces, thus improving the safety of material transfer in the centerless grinder.

[0037] 2. The connection position between the drive rod and the transmission rod is adjustable along the length of the transmission rod, so that the support claw can be used to support workpieces of different sizes. Attached Figure Description

[0038] Figure 1 This is an assembly diagram of an embodiment of this application and a centerless grinder;

[0039] Figure 2 This is a schematic diagram of the overall structure of the feeding mechanism in the embodiments of this application;

[0040] Figure 3 This is a schematic diagram of the overall structure of the loading platform and loading bracket in the embodiments of this application;

[0041] Figure 4 This is an embodiment of the present application. Figure 3 An enlarged schematic diagram of part A in the middle;

[0042] Figure 5 This is a schematic diagram of the overall structure of the feeding mechanism in the embodiments of this application;

[0043] Figure 6 This is a partial cross-sectional view of the clamping mechanism in the embodiments of this application;

[0044] Figure 7 This is an assembly diagram of the connecting rod and clamping rod in an embodiment of this application.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Feeding mechanism; 11. Feeding rack; 12. Feeding conveyor belt; 13. Feeding bracket; 131. Receiving groove; 132. Moving groove; 14. Material blocking plate; 141. Material blocking assembly; 1411. Material blocking screw; 1412. Material blocking block; 15. Feeding platform; 151. Perforation; 152. Feeding cylinder; 2. Unloading mechanism; 21. Unloading rack; 22. Unloading conveyor belt; 23. 1. Feeding plate; 231. Receiving chamber; 3. Clamping mechanism; 31. Clamping frame; 311. Slide rail; 32. Clamping claw; 321. Connecting seat; 3211. Cavity; 3212. Connecting hole; 3213. Moving cylinder; 322. Connecting rod; 3221. Sliding block; 3222. Rotating hole; 3223. Drive hole; 3227. Locking bolt; 3228. Migration block; 32 3. Clamping rod; 3231. Migration groove; 3232. Telescopic rod; 3233. Connecting sub-rod; 3234. Connecting sleeve; 324. Slider; 3241. Lifting cylinder; 33. Support claw; 331. Rotating shaft; 5. Drive assembly; 51. Drive plate; 511. Locking hole; 512. Connecting hole; 52. Drive rod; 53. Transmission rod; 531. Rotating shaft; 6. Sliding assembly; 61. Sliding screw; 611. Transmission pulley; 612. Transmission belt; 62. Sliding motor; 7. Sliding assembly; 71. Sliding cylinder; 72. Sliding rod; 73. Sliding rod; 74. Sliding ring; 75. Connecting rod; 8. Baffle; 81. Moving assembly; 811. First moving rack; 812. Second moving rack; 8121. Moving block; 813. Moving gear. Detailed Implementation

[0047] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] This application discloses an automatic loading and unloading mechanism for a centerless grinding machine. (Refer to...) Figure 1It includes a feeding mechanism 1, a discharging mechanism 2, and a clamping mechanism 3.

[0049] Reference Figure 2 , Figure 3 and Figure 4 The loading mechanism 1 and unloading mechanism 2 are located on opposite sides of the centerless grinder. The loading mechanism 1 includes a loading frame 11, a loading conveyor belt 12, a baffle plate 14, a loading platform 15, and a loading bracket 13. The loading frame 11 is fixedly mounted on the ground and located on one side of the centerless grinder. The loading conveyor belt 12 carries the workpiece and is drive-connected to the loading frame 11. To achieve the drive-connection between the loading conveyor belt 12 and the loading frame 11, multiple loading rollers are rotatably connected to the loading frame 11. One loading roller at the end is connected to a loading motor, enabling the loading motor to drive the loading roller to rotate. The loading conveyor belt 12 is sleeved on the outside of the multiple loading rollers, so that when the loading roller at the end rotates under the action of the loading motor, it can drive the loading conveyor belt 12 to run.

[0050] The loading platform 15 is fixedly connected to the loading rack 11. Along the loading direction of the workpieces on the loading conveyor belt 12, the loading platform 15 is located in front of the loading conveyor belt 12, allowing the loading conveyor belt 12 to transfer workpieces onto the loading platform 15. To prevent workpiece stacking on the loading platform 15, a baffle plate 14 is connected to the loading rack 11. The baffle plate 14 is mounted above the loading conveyor belt 12 and extends to the curved section of the loading conveyor belt 12 and above the loading platform 15. The baffle plate 14 is spaced apart from the loading conveyor belt 12 and the loading platform 15, forming a gap for the workpieces to pass through. The baffle plate 14 is connected to the loading rack 11 via a baffle assembly 141, allowing the baffle plate 14 to move towards or away from the loading conveyor belt 12. This facilitates the worker adjusting the gap size, ensuring that the workpieces on the loading conveyor belt 12 are spread out into a single layer under the action of the baffle plate 14.

[0051] The material blocking assembly 141 includes material blocking screws 1411 and material blocking blocks 1412. Two material blocking blocks 1412 are provided, positioned on either side of the feeding conveyor belt 12, and both blocks are fixedly connected to the feeding frame 11. Four material blocking screws 1411 are provided, arranged in pairs, with each pair corresponding to a material blocking block 1412. The material blocking screws 1411 are threadedly connected to their corresponding material blocking blocks 1412 and rotatably connected to the material blocking plate 14.

[0052] The loading bracket 13 is located on the loading platform 15, which is inclined away from the ground so that the workpiece on the loading platform 15 can move onto the loading bracket 13 under its own weight. The loading bracket 13 can move towards or away from the ground. A receiving groove 131 for accommodating workpieces is provided on the side of the loading bracket 13 away from the ground, and a through hole 151 for the loading bracket 13 to pass through is provided on the loading platform 15. In this embodiment, to enable the loading bracket 13 to move towards or away from the ground, a loading cylinder 152 is fixedly connected to the loading platform 15, and the piston rod of the loading cylinder 152 is fixedly connected to the loading bracket 13.

[0053] To prevent multiple workpieces from being loaded onto the loading tray 13 simultaneously, a baffle 8 is slidably connected to the loading platform 15. Only one workpiece is allowed to contact the surface of the loading platform 15 between the baffle 8 and the loading tray 13. A moving assembly 81 for driving the baffle 8 to slide is provided on the loading platform 15. The moving assembly 81 includes a first moving rack 811, a second moving rack 812, and a moving gear 813. The moving gear 813 is rotatably connected to the loading platform 15. The first moving rack 811 meshes with the moving gear 813 and is fixedly connected to the baffle 8. The second moving rack 812 is slidably connected to the loading tray 13 and meshes with the moving gear 813. In this embodiment, the sliding connection between the second moving rack 812 and the feeding bracket 13 is specifically configured as follows: the feeding bracket 13 is provided with a moving groove 132 along the direction close to or away from the ground. The moving groove 132 is a T-shaped groove. A moving block 8121 is fixedly connected to the second moving rack 812. The moving block 8121 is adapted to the shape of the moving groove 132, and the moving block 8121 is slidably connected to the moving groove 132.

[0054] When the loading bracket 13 lifts the workpiece, the baffle 8 is positioned where it cannot block the workpiece. At this time, the workpiece moves to a position where it is in contact with the side of the loading bracket 13. When the loading bracket 13 moves downward, the second moving rack 812 first slides against the loading bracket 13. When the loading bracket 13 moves to the point where the moving groove 132 abuts against the moving block 8121, the loading bracket 13 drives the second moving rack 812 to move and drives the moving gear 813 to rotate, so that the first moving rack 811 drives the baffle 8 to move away from the ground until the loading bracket 13 is lowered into place. At this time, the baffle 8 is located between the two workpieces, so that the workpiece closest to the loading bracket 13 can move into the receiving groove 131, while the other workpiece cannot move under the action of the baffle 8.

[0055] Reference Figure 5The unloading mechanism 2 includes an unloading frame 21, an unloading conveyor belt 22, and unloading plates 23. The unloading frame 21 is located on the side of the centerless grinder opposite to the loading frame 11. Multiple unloading rollers are rotatably connected to the unloading frame 21, arranged in parallel intervals along the length of the unloading frame 21. An unloading motor is connected to one of the unloading rollers at one end, and the motor body is fixedly connected to the unloading frame 21 so that the unloading motor can drive the unloading roller connected to it to rotate. The unloading conveyor belt 22 is sleeved on the outside of the multiple unloading rollers, so that when the unloading roller at the end rotates under the action of the unloading motor, it can drive the unloading conveyor belt 22. Multiple unloading plates 23 are provided, arranged sequentially along the length of the unloading conveyor belt 22, and connected to it. Adjacent unloading plates 23 are spaced apart to form receiving cavities 231 for receiving the optical shaft.

[0056] Reference Figure 1 and Figure 6 The clamping mechanism 3 is provided in two sets, which are located on both sides of the centerless grinder. One set of clamping mechanism 3 is mounted above the feeding conveyor belt 12, and the other set of clamping mechanism 3 is mounted above the unloading conveyor belt 22.

[0057] The clamping mechanism 3 includes a clamping frame 31, clamping claws 32, and supporting claws 33. The clamping frame 31 is fixedly mounted on the loading rack 11 or the unloading rack 21. The clamping frames 31 of the two sets of clamping mechanisms 3 are fixedly connected so that the two clamping frames 31 form a gantry structure.

[0058] The clamping jaw 32 is connected to the clamping frame 31, and the clamping jaw 32 can move in the direction of approaching or moving away from the centerless grinder table. In order to realize the connection between the clamping jaw 32 and the clamping frame 31, a slide rail 311 is fixedly connected to the clamping frame 31, and a slider 324 is fixedly connected to the clamping jaw 32. The slider 324 has a groove that matches the shape of the slide rail 311, thereby realizing the sliding connection between the clamping jaw 32 and the clamping frame 31.

[0059] In this embodiment, to achieve the sliding of the slider 324 and the slide rail 311, the clamping frame 31 is provided with a sliding assembly 6 for driving the slider 324 connected by the two sets of clamping mechanisms 3 to slide. The sliding assembly 6 includes a sliding screw 61 and a sliding motor 62. The sliding screw 61 is rotatably mounted on the side of the clamping frame 31 away from the ground, and the sliding screw 61 is threadedly connected to the two sliders 324. The body of the sliding motor 62 is fixedly connected to the unloading frame 21. Both the sliding motor 62 and the sliding screw 61 are coaxially fixedly connected to a transmission pulley 611, and the two transmission pulleys 611 are connected by a transmission belt 612, so that the operation of the sliding motor 62 can drive the sliding screw 61 to rotate, thereby driving the slider 324 to move. In order to save costs, when one set of clamping jaws 32 moves to the worktable of the centerless grinder, the other set of clamping jaws 32 moves to the corresponding loading bracket 13 or unloading bracket 21.

[0060] Reference Figure 6 and Figure 7 The gripper 32 includes a connecting seat 321, a connecting rod 322, and a gripping rod 323. The connecting seat 321 is fixedly connected to the slider 324 via a lifting cylinder 3241. Specifically, the cylinder body of the lifting cylinder 3241 is fixedly connected to the slider 324, and the piston rod of the lifting cylinder 3241 is fixedly connected to the connecting seat 321. Two sets of connecting rods 322 are provided. In this embodiment, one set of connecting rods 322 includes one connecting rod 322. The two sets of connecting rods 322 are located on both sides of the connecting seat 321. Both sets of connecting rods 322 are connected to the connecting seat 321 and can move in directions that are closer to or further away from each other.

[0061] In this embodiment, to enable the two sets of connecting rods 322 to move closer to or further away from each other, a cavity 3211 is provided on the connecting seat 321, and a connecting hole 3212 is provided on the side of the connecting seat 321 away from the slider 324, which communicates with the cavity 3211. A sliding block 3221 is fixedly connected to the connecting rod 322. The sliding block 3221 is an I-shaped block and is engaged with the connecting hole 3212 to achieve a sliding connection between the sliding block 3221 and the connecting seat 321. A sliding assembly 7 for driving the sliding block 3221 to slide is provided inside the connecting seat 321.

[0062] The sliding assembly 7 includes a sliding cylinder 71, a sliding rod 72, a sliding lever 73, a sliding ring 74, and a connecting rod 75. The sliding rod 72, sliding lever 73, sliding ring 74, and connecting rod 75 are all located in the cavity 3211 of the connecting seat 321. Two sets of each of the sliding lever 73, sliding ring 74, and connecting rod 75 are provided, with each set located at one end of the sliding rod 72. One side of the cylinder body of the sliding cylinder 71 is fixedly connected to the piston rod of the lifting cylinder 3241, and the other side is fixedly connected to the connecting seat 321. The piston rod of the sliding cylinder 71 passes into the cavity 3211 of the connecting seat 321 and is fixedly connected to the sliding rod 72, allowing the sliding rod 72 to move towards or away from the connecting hole 3212. The sliding rod 72 is located in the cavity 3211 of the connecting seat 321 and is fixedly connected to the piston rod of the sliding cylinder 71. The sliding ring 74 is slidably sleeved on the outer side of the corresponding end of the sliding rod 72, and the sliding rod 72 and the connecting rod 75 are located between the sliding block 3221 and the sliding rod 72. One end of the sliding rod 73 is rotatably connected to the sliding ring 74, and the other end is rotatably connected to the sliding block 3221. One end of the connecting rod 75 is rotatably connected to the sliding ring 74, and the other end is rotatably connected to the side wall of the cavity 3211. The connecting rod 75 and the sliding rod 73 are inclined, and their inclination directions are opposite.

[0063] When the sliding cylinder 71 is in operation, the piston rod of the sliding cylinder 71 drives the sliding rod 72 to move, and pushes the sliding rod 73 and the connecting rod 75 to rotate, thereby driving the sliding block 3221 to move, i.e., the connecting rod 322 to move, so as to realize that the two connecting rods 322 move towards each other or away from each other.

[0064] Two sets of clamping rods 323 are provided. In this embodiment, one set of clamping rods 323 includes one clamping rod 323. One set of clamping rods 323 is correspondingly provided with one set of connecting rods 322, and the clamping rod 323 is slidably connected to the corresponding connecting rod 322 on the side near the center line of the connecting seat 321. The sliding connection method between the clamping rod 323 and the connecting rod 322 is specifically set as follows: a migration block 3228 is fixedly connected to the connecting rod 322, and a migration groove 3231 is opened on the clamping rod 323. The migration block 3228 is slidably connected to the migration groove 3231. Two sets of clamping rods 323 are connected by telescopic rods 3232. In this embodiment, the telescopic rods 3232 include connecting sub-rods 3233 and connecting sleeves 3234. There are two connecting sub-rods 3233, each corresponding to a clamping rod 323. One end of each connecting sub-rod 3233 is fixedly connected to the clamping rod 323, and the other end is slidably connected to the connecting sleeve 3234. A movable cylinder 3213 for driving the clamping rods 323 to slide is provided on the connecting seat 321. The cylinder body of the movable cylinder 3213 is fixedly connected to the connecting seat 321, and the piston rod of the movable cylinder 3213 is fixedly connected to the connecting sleeve 3234.

[0065] Both connecting rods 322 have drive holes 3223 along their length, with the end of the drive hole 3223 near the ground being open. Two sets of support claws 33 are provided, each set consisting of one support claw 33. Each support claw 33 corresponds to one connecting rod 322. The support claw 33 is located within the drive hole 3223, and a rotating shaft 331 is rotatably connected to each support claw 33. The connecting rod 322 has a rotating hole 3222 along its length, which communicates with the drive hole 3223. The rotating shaft 331 passes through the rotating hole 3222, thus enabling the support claw 33 to slide and hinge with the corresponding connecting rod 322. Each connecting rod 322 is equipped with a drive assembly 5 for driving the sliding rotation of the support claw 33.

[0066] The drive assembly 5 includes a drive plate 51, a drive rod 52, and a transmission rod 53. The drive rod 52 is fixedly connected to the support claw 33. The transmission rod 53 is rotatably connected to the end of the drive rod 52 away from the support claw 33 via a rotating shaft 531. In this embodiment, both the transmission rod 53 and the drive rod 52 are rotatably connected to the rotating shaft 531, which is located outside the drive hole 3223 and can abut against the side wall of the connecting rod 322. The end of the transmission rod 53 away from the drive rod 52 is rotatably connected to the side wall of the drive hole 3223 away from the support claw 33. The drive plate 51 is connected to the clamping rod 323 and is located on the movement trajectory of the rotating shaft 531. When the clamping rod 323 moves, it drives the drive plate 51 to move and drives the rotating shaft 531 to move away from the ground. At this time, the transmission rod 53 and the drive rod 52 rotate and push the supporting claw 33 to rotate, so that the supporting claw 33 can rotate to the position where the workpiece is in contact, thereby realizing the support of the supporting claw 33 on the workpiece.

[0067] To enable the support claw 33 to support workpieces of different sizes, the drive plate 51 and the clamping rod 323 are slidably connected. In this embodiment, the drive plate 51 and the clamping rod 323 are slidably connected by having a locking hole 511 on the drive plate 51 for the connecting rod 322 to pass through, and a communicating hole 512 on the drive plate 51 for the clamping rod 323 to pass through. The width of the clamping rod 323 is larger than that of the connecting rod 322, so that the drive plate 51 is engaged with both sides of the clamping rod 323. A locking bolt 3227 is threadedly connected to the drive plate 51 and abuts against the side of the clamping rod 323 away from the connecting rod 322.

[0068] After the clamping rod 323 clamps the workpiece, the moving cylinder 3213 operates, causing the clamping rod 323 to move in the direction away from the ground. The clamping rod 323 drives the drive plate 51 to gradually move until the drive plate 51 contacts the rotating shaft 531. The drive plate 51 then drives the rotating shaft 531 to move, causing the drive rod 52 and the transmission rod 53 to rotate. This causes the supporting claw 33 to rotate directly below the workpiece, so that when the workpiece falls, it can contact the side of the supporting claw 33 away from the ground, thus allowing the supporting claw 33 to support the bottom of the workpiece. At this time, the clamping rod 323 stops moving, the lifting cylinder 3241 operates, and the connecting seat 321 moves in the direction away from the ground to a certain height. Then, the sliding component 6 operates, driving the clamping mechanism 3 to move to the appropriate position.

[0069] The implementation principle of an automatic loading and unloading mechanism for a centerless grinder according to an embodiment of this application is as follows: The operator places the workpiece to be ground on the loading conveyor belt 12. The loading conveyor belt 12 runs and moves the workpiece to a position that abuts against the loading bracket 13. The loading cylinder 152 is activated so that the loading cylinder 152 moves the loading bracket 11 to a suitable position. Then, the clamping mechanism 3 connected to the loading mechanism 1 is controlled so that the clamping mechanism 3 clamps the workpiece and transfers it to the worktable of the centerless grinder. After the workpiece is ground, the clamping mechanism 3 connected to the unloading mechanism 2 clamps the workpiece and transfers it to the receiving chamber 231 so that the unloading mechanism 2 moves the workpiece to the next station.

[0070] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar terms mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0071] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic loading and unloading mechanism for a centerless grinder, characterized in that, include: The loading mechanism (1) is used to transfer workpieces; The unloading mechanism (2) is used to transfer the workpiece, and the loading mechanism (1) is located on the side of the centerless grinder away from the loading mechanism (1); The clamping mechanism (3) is provided in two sets, which are respectively located on both sides of the centerless grinding machine. One set of clamping mechanism (3) is connected to the loading conveyor belt (12), and the other set of clamping mechanism (3) is connected to the unloading conveyor belt (22). The clamping mechanism (3) includes: The clamping frame (31) is connected to the loading conveyor belt (12) or the unloading conveyor belt (22); The clamping claw (32) is used to clamp the optical axis. The clamping claw (32) is connected to the clamping frame (31), and the clamping claw (32) can move in the direction of approaching or moving away from the centerless grinding machine station. The supporting claw (33) is rotatably connected to the clamping claw (32), and the supporting claw (33) can move in a direction close to or away from the center line of the clamping claw (32), and the supporting claw (33) can abut against the side of the optical axis close to the ground.

2. The automatic loading and unloading mechanism for a centerless grinding machine according to claim 1, characterized in that, The gripper (32) includes: Connecting seat (321) is connected to the clamping frame (31); The connecting rod (322) is provided in two sets. The two sets of connecting rods (322) are respectively located on both sides of the connecting seat (321) and connected to the connecting seat (321). The two sets of connecting rods (322) move in a direction that is closer to or further away from each other. The connecting rod (322) is connected to the supporting claw (33). The clamping rod (323) is provided in two sets. One set of clamping rods (323) is correspondingly provided with one set of connecting rods (322). The clamping rod (323) is slidably connected to the corresponding connecting rod (322) along the length direction of the connecting rod (322).

3. An automatic loading and unloading mechanism for a centerless grinder according to claim 2, characterized in that, The supporting claw (33) is slidably hinged to the connecting rod (322), and the connecting rod (322) is provided with a driving component (5) for driving the supporting claw (33) to rotate.

4. An automatic loading and unloading mechanism for a centerless grinder according to claim 3, characterized in that, The driving component (5) includes: The drive rod (52) is fixedly connected to the supporting claw (33); The transmission rod (53) is rotatably connected to the drive rod (52), and the end of the transmission rod (53) away from the drive rod (52) is rotatably connected to the connecting rod (322).

5. An automatic loading and unloading mechanism for a centerless grinder according to claim 4, characterized in that, The supporting claw (33) is rotatably connected to a rotating shaft (331), and the connecting rod (322) has a rotating hole (3222) along its length direction, and the rotating shaft (331) passes through the rotating hole (3222).

6. An automatic loading and unloading mechanism for a centerless grinder according to claim 4, characterized in that, The drive rod (52) is rotatably connected to the transmission rod (53) via a rotating shaft (531), and the drive assembly (5) further includes: The drive plate (51) is connected to the clamping rod (323), and the drive plate (51) is located on the movement trajectory of the rotating shaft (531).

7. An automatic loading and unloading mechanism for a centerless grinder according to claim 5, characterized in that, The feeding mechanism (1) includes: The loading rack (11) is mounted on one side of the centerless grinder; The feeding conveyor belt (12) is connected to the feeding rack (11) via a transmission. The feeding bracket (13) is located below the corresponding side clamping mechanism (3), and the feeding bracket (13) is slidably connected to the feeding rack (11) in a direction close to or away from the ground.

8. An automatic loading and unloading mechanism for a centerless grinder according to claim 6, characterized in that, The feeding mechanism (1) also includes a blocking plate (14), which is mounted above the feeding conveyor belt (12) and can move in a direction close to or away from the feeding conveyor belt (12).

9. An automatic loading and unloading mechanism for a centerless grinder according to claim 6, characterized in that, A hook plate (211) is rotatably connected to the feeding rack (11). The hook plate (211) is located on the moving trajectory of the feeding bracket (13). A return spring is provided on the hook plate (211). The return spring connects the hook plate (211) and the feeding rack (11). Under the action of the return spring, the hook plate (211) rotates between the two optical axes.

10. An automatic loading and unloading mechanism for a centerless grinding machine according to claim 8, characterized in that, The feeding mechanism (2) includes: The unloading rack (21) is mounted on the side of the centerless grinder away from the loading rack (11); The unloading conveyor belt (22) drives the unloading rack (21) through a transmission. Multiple feeding plates (23) are provided, and the multiple feeding plates (23) are arranged sequentially along the length direction of the feeding conveyor belt (22). The feeding plates (23) are connected to the feeding conveyor belt (22), and adjacent feeding plates (23) are spaced apart to form a receiving cavity (231) for receiving the optical axis.

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