A handling claw for a multi-station lathe
By introducing a jaw, a first slot, a first protrusion, and a magnetic block into the pneumatic gripper, the problem of large-diameter bar stock being unable to be fixed is solved, achieving more stable clamping and handling, and improving the working quality of the lathe.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUZHOU VOCATIONAL TECH COLLEGE
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-26
Smart Images

Figure CN224273316U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lathe equipment, and in particular to a pneumatic gripper for handling in multi-station lathes. Background Technology
[0002] Pneumatic grippers are devices used in industrial automation, installed at the end of robots or other automated equipment to perform operations such as gripping, moving, and placing workpieces. They are also known as pneumatic grippers or robotic grippers.
[0003] When using pneumatic grippers to move raw materials processed on a lathe, the size of the bar stock varies. When the diameter of the bar stock is large, the pneumatic grippers cannot completely fix the bar stock. This causes the pneumatic grippers to tilt or even fall when moving the bar stock, which reduces the working quality of the pneumatic grippers on the lathe. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pneumatic gripper for handling multi-station lathes.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A pneumatic gripper for a multi-station lathe includes grippers, each gripper surface having a first groove, the two first grooves respectively contacting corresponding first protrusions, a plurality of first protrusions having magnets mounted on their surfaces, the plurality of magnets being inserted into and attracted into corresponding first grooves, a plurality of first protrusions being machined on the surface of an extension block, a plurality of extension blocks having second protrusions machined on their surfaces, a plurality of extension blocks having corresponding first grooves machined on their surfaces, a plurality of extension blocks having second grooves machined on their surfaces, the dimensions of the plurality of second grooves matching the corresponding second protrusions, and a plurality of second protrusions having magnets mounted on their surfaces.
[0007] Preferably, the upper ends of the two claws are fixedly connected to the corresponding connecting rods, the upper ends of the two connecting rods are rotatably connected to the corresponding connecting rods through bearings, and the ends of the two connecting rods are rotatably connected to the plate through bearings.
[0008] Preferably, the upper end of the plate is fixedly connected to the end of the second cylinder, the output end of the second cylinder is fixedly connected to the block, the lower end of the block is fixedly connected to the crossbar, the surface of the crossbar is machined with two first sliding grooves, the two first sliding grooves are respectively slidably connected to corresponding bolts, the two bolts respectively pass through the middle of the corresponding connecting rod, and the ends of the two bolts are respectively threadedly connected to the corresponding nuts.
[0009] Preferably, the lower end of the flat plate is fixedly connected to the output end of the first cylinder, the lower end of the first cylinder is fixedly connected to the rotating plate, and the outer wall of the rotating plate is rotatably connected to the rotating rod through a bearing.
[0010] Preferably, the surface of the rotating rod is threadedly connected to the locking bolt, and the end of the locking bolt abuts against the rotating plate.
[0011] Preferably, the end of the rotating rod is fixedly connected to the output shaft of the motor, the output shaft of the motor is rotatably connected to the bracket through a bearing, and the motor is mounted on the lower surface of the bracket.
[0012] Preferably, a limiting block is installed on the upper surface of both claws, the surface of one limiting block is fixedly connected to the second sliding groove, and the outer wall of the other limiting block is slidably connected to the second sliding groove.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. With the configured jaws, first slot, first protrusion, magnetic block, and extension block, when the diameter of the bar stock being processed by the lathe is large, the operator first inserts the first protrusion of the extension block into the first slot on the jaw, and then attaches it to the jaw through the magnetic block. In this way, when the diameter of the bar stock is large, the two jaws clamp the bar stock through the extension block, and the extension block can extend the jaw slightly to support the bar stock. This prevents the jaws from tilting or even falling off, thereby improving the working quality of the lathe's pneumatic gripper.
[0015] 2. By using the second slot, second protrusion, and extension block, when the bar stock is long and the bar stock tilts forward and backward after being fixed by the chuck, the operator inserts the second protrusion of the extension block into the second slot on the side wall of the chuck and fixes it by magnetic attraction. This allows more extension blocks to slightly extend the width of the chuck, thus better supporting the bar stock and preventing it from shaking when being handled by the chuck. This also improves the working quality of the lathe's handling pneumatic gripper. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a pneumatic gripper for a multi-station lathe proposed in this utility model;
[0017] Figure 2 for Figure 1 Rear view diagram;
[0018] Figure 3 for Figure 2 A diagram showing the view from below;
[0019] Figure 4 for Figure 2 A magnified view of part A in the middle;
[0020] Figure 5 for Figure 3 A magnified view of part B in the middle section;
[0021] Figure 6 for Figure 2 A three-dimensional schematic diagram of the middle extension block.
[0022] In the diagram: 1. Bracket; 2. Motor; 3. Rotating rod; 4. Rotating plate; 5. Locking bolt; 6. First cylinder; 7. Flat plate; 8. Second cylinder; 9. Block; 10. Crossbar; 11. Connecting rod; 12. Bolt; 13. Nut; 14. Connecting rod; 15. Claw; 16. Limiting block; 17. Second slide groove; 18. Extension block; 19. Second slot; 20. First slot; 21. Second protrusion; 22. Magnetic block; 23. First protrusion; 24. First slide groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Example 1, referring to Figures 1 to 6 A pneumatic gripper for a multi-station lathe includes grippers 15, each gripper 15 having a first slot 20 on its surface. Each first slot 20 contacts a corresponding first protrusion 23, which is inserted into the first slot 20. Magnetic blocks 22 are mounted on the surfaces of multiple first protrusions 23, and are inserted into and attracted to their respective first slots 20. Multiple first protrusions 23 are machined on the surface of extension blocks 18. Second protrusions 21 are machined on the surfaces of multiple extension blocks 18, and corresponding first slots 20 and second slots 19 are machined on the surfaces of multiple extension blocks 18. The second protrusions 21 can be inserted into the second slots 19, and the dimensions of the multiple second slots 19 match the corresponding second protrusions 21. Magnetic blocks 22 are mounted on the surfaces of the multiple second protrusions 21. When the diameter of the bar stock being processed by the lathe is large, the operator first inserts the first protrusion 23 of the extension block 18 into the first slot 20 on the chuck 15, and then attaches it to the chuck 15 by the magnetic block 22. In this way, when the diameter of the bar stock is large, the extension block 18 can clamp the bar stock with the two chucks 15 while extending the chucks 15 slightly to support the bar stock. This prevents the chucks 15 from tilting or even falling off, thereby improving the working quality of the lathe's pneumatic grippers.
[0025] In this embodiment, the upper ends of the two jaws 15 are fixedly connected to the corresponding connecting rods 14. The connecting rods 14 drive the jaws 15 to move. The upper ends of the two connecting rods 14 are rotatably connected to the corresponding connecting rods 11 through bearings. The connecting rods 11 drive the connecting rods 14 to rotate. The ends of the two connecting rods 11 are rotatably connected to the plate 7 through bearings. The connecting rods 11 rotate on the plate 7. The upper end of the plate 7 is fixedly connected to the end of the second cylinder 8. The plate 7 drives the second cylinder 8 to move. The model of the second cylinder 8 is selected according to actual needs, and only those that meet the working requirements are selected. The output end of the first cylinder 6 is fixedly connected to the block 9. The second cylinder 8 drives the block 9 to move. The lower end of the block 9 is fixedly connected to the crossbar 10. The block 9 drives the crossbar 10 to move. The surface of the crossbar 10 is machined with two first sliding grooves 24. The two first sliding grooves 24 are respectively slidably connected to the corresponding bolts 12. The bolts 12 slide in the first sliding grooves 24. The two bolts 12 pass through the middle of the corresponding connecting rods 11. The ends of the two bolts 12 are respectively threadedly connected to the corresponding nuts 13. The nuts 13 fix the bolts 12 in the middle of the connecting rods 11. The lower end of the plate 7 is connected to the first cylinder 6. The output end is fixedly connected. The first cylinder 6 drives the plate 7 to move. The model of the first cylinder 6 is selected according to actual needs, and only those that meet the working requirements are selected. The lower end of the first cylinder 6 is fixedly connected to the rotating plate 4. The rotating plate 4 drives the first cylinder 6 to rotate. The outer wall of the rotating plate 4 is rotatably connected to the rotating rod 3 through a bearing. The rotating plate 4 rotates on the rotating rod 3. The surface of the rotating rod 3 is threadedly connected to the locking bolt 5. The locking bolt 5 is inserted into the rotating rod 3, and the end of the locking bolt 5 abuts against the rotating plate 4, locking the rotating plate 4 to prevent the rotating plate 4 from rotating on its own. The end of the rotating rod 3 is connected to the output of the motor 2. The output shaft is fixedly connected, and the motor 2 drives the rotating rod 3 to rotate. The model of the motor 2 is selected according to actual needs, and only those that meet the working requirements are selected. The output shaft of the motor 2 is rotatably connected to the bracket 1 through the bearing. The motor 2 is installed on the lower surface of the bracket 1. The motor 2 is installed on the bracket 1. Limit blocks 16 are installed on the upper surface of the two claws 15. The surface of one limit block 16 is fixedly connected to the second slide groove 17, and the limit block 16 fixes the position of the second slide groove 17. The outer wall of the other limit block 16 is slidably connected to the second slide groove 17, and the other limit block 16 moves within the second slide groove 17.
[0026] The working principle of this embodiment is as follows: In use, first connect the external power supply to motor 2 and start motor 2. Motor 2 drives the rotating rod 3 to rotate, which in turn drives the rotating plate 4 and the first cylinder 6 to rotate. The first cylinder 6 drives the plate 7 to move, and the plate 7 drives the upper second cylinder 8 to move. The second cylinder 8 drives the bolt 12 to rotate via the crossbar 10. The bolt 12 drives the connecting rod 14 and the lower pawl 15 to rotate via the connecting rod 11. After the pawl 15 is rotated to the appropriate position, motor 2 stops working. Then, connect the external power supply to the first cylinder 6 and start the first cylinder 6. After the first cylinder 6 moves the two jaws 15 to a suitable height using the above method, the first cylinder 6 stops working. The external power supply to the second cylinder 8 is then connected, and the second cylinder 8 is started. The second cylinder 8 moves the block 9, which in turn moves the crossbar 10. As the crossbar 10 moves, it moves the two bolts 12 via the first sliding groove 24. The bolts 12 then rotate the connecting rod 11. While the connecting rod 11 rotates on the plate 7, its other end moves the connecting rod 14. The connecting rod 14 then moves the jaws 15 below, clamping both sides of the bar stock. Afterwards, the second cylinder 8 stops working. When the diameter of the bar stock being machined on the lathe is large, the operator first inserts the first protrusion 23 of the extension block 18 into the first slot 20 on the chuck 15, and it is attracted to the chuck 15 by the magnetic block 22. In this way, when the diameter of the bar stock is large, the extension block 18 can clamp the bar stock with the two chucks 15 while providing support for the bar stock over a short distance. This prevents the chucks 15 from tilting or even falling off. When the length of the bar stock is long, the bar stock may tilt forward and backward after the chucks 15 fix it. In this situation, the operator inserts the second protrusion 21 of the extension block 18 into the second slot 19 on the side wall of the chuck 15 and fixes it with magnetic block 22. This allows the extension blocks 18 to better support the bar stock, thus preventing the bar stock from shaking when being handled by the chuck 15. When it is necessary to handle the raw materials of the lathe at other workstations, the motor 2 is started. The motor 2 drives the rotating rod 3 to rotate. The rotating rod 3 drives the two chucks 15 to rotate to the appropriate position through the above transmission method. Then the motor 2 is turned off, and the pneumatic gripper handling work of the lathe is completed.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A handling claw for a multi-station lathe, comprising a jaw (15), characterized in that, The surfaces of the two claws (15) are provided with first slots (20), and the two first slots (20) are respectively in contact with the corresponding first protrusions (23). The surfaces of the multiple first protrusions (23) are each equipped with a magnetic block (22). The multiple magnetic blocks (22) are inserted into and attracted into the corresponding first slots (20). The multiple first protrusions (23) are processed on the surface of the extension block (18). The surfaces of the multiple extension blocks (18) are each equipped with second protrusions (21). The surfaces of the multiple extension blocks (18) are each equipped with corresponding first slots (20). The surfaces of the multiple extension blocks (18) are each equipped with second slots (19). The dimensions of the multiple second slots (19) are all matched with the corresponding second protrusions (21). The surfaces of the multiple second protrusions (21) are each equipped with a magnetic block (22).
2. The pneumatic gripper for a multi-station lathe according to claim 1, characterized in that, The upper ends of the two claws (15) are fixedly connected to the corresponding connecting rods (14), the upper ends of the two connecting rods (14) are rotatably connected to the corresponding connecting rods (11) through bearings, and the ends of the two connecting rods (11) are rotatably connected to the plate (7) through bearings.
3. A pneumatic gripper for handling multi-station lathes according to claim 2, characterized in that, The upper end of the plate (7) is fixedly connected to the end of the second cylinder (8), the output end of the second cylinder (8) is fixedly connected to the block (9), the lower end of the block (9) is fixedly connected to the crossbar (10), the surface of the crossbar (10) is machined with two first sliding grooves (24), the two first sliding grooves (24) are slidably connected to the corresponding bolts (12) respectively, the two bolts (12) respectively pass through the middle of the corresponding connecting rod (11), and the ends of the two bolts (12) are threadedly connected to the corresponding nuts (13) respectively.
4. A pneumatic gripper for handling a multi-station lathe according to claim 2, characterized in that, The lower end of the plate (7) is fixedly connected to the output end of the first cylinder (6), and the lower end of the first cylinder (6) is fixedly connected to the rotating plate (4). The outer wall of the rotating plate (4) is rotatably connected to the rotating rod (3) through a bearing.
5. A pneumatic gripper for handling a multi-station lathe according to claim 4, characterized in that, The surface of the rotating rod (3) is threadedly connected to the locking bolt (5), and the end of the locking bolt (5) abuts against the rotating plate (4).
6. A pneumatic gripper for handling a multi-station lathe according to claim 4, characterized in that, The end of the rotating rod (3) is fixedly connected to the output shaft of the motor (2). The output shaft of the motor (2) is rotatably connected to the bracket (1) through a bearing. The motor (2) is mounted on the lower surface of the bracket (1).
7. A pneumatic gripper for handling a multi-station lathe according to claim 6, characterized in that, Limiting blocks (16) are installed on the upper surfaces of both claws (15). The surface of one limiting block (16) is fixedly connected to the second slide groove (17), and the outer wall of the other limiting block (16) is slidably connected to the second slide groove (17).