Hydraulic four-jaw chuck

Abstract

The utility model relates to the technical field of machining, in particular to a hydraulic four-jaw chuck which comprises a chuck seat and clamping jaws, a guide groove is formed in the outer side of the chuck seat, a pushing mechanism is arranged in the chuck seat in a sliding mode, the pushing mechanism comprises a pushing ring, a cover plate and a limiting ring, and a pushing groove is obliquely formed in the outer side of the pushing ring. A matching face is obliquely arranged on the side, close to the pushing ring, of the clamping jaw, a lubricating channel is formed in the clamping jaw, the lubricating channel comprises an oil inlet channel and a first lubricating through hole formed in the upper end of the clamping jaw, the first lubricating through hole and the oil inlet channel are arranged in a penetrating mode, and an oil injection nozzle is arranged at the tail end of the first lubricating through hole. Rapid clamping and releasing of the clamping jaw are achieved through the hydraulic system, the labor intensity of workers is relieved, the operation time of the workers is shortened, and the production efficiency is improved; a lubricating system is arranged inside, abrasion of the chuck base and the clamping jaws is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and specifically to a hydraulic four-jaw chuck. Background Technology

[0002] A chuck is a device used to clamp and hold workpieces. It is often used on the surface of machine tools to hold the workpieces to be processed. The operation can be done manually to allow the chuck to clamp the workpiece. After clamping, the machine tool can be started to process the clamped workpiece, thus ensuring that the workpiece is held on the surface of the chuck and will not fall off.

[0003] Patent CN213195692U discloses a manual chuck, including a face plate, a cover, a rotating rod, a handwheel, a crank handle, a turntable, a clamping block, a turbine, a washer, a rotating shaft, a roller, and a bearing. The cover is located on the rear side of the face plate, the bearing is embedded in the center of the face plate, the rotating shaft is laterally inserted and fixed in the bearing, and the turbine is located inside the cover. The washer is embedded in the center of the front side of the turbine and sleeved and fixed on the outer side of the rear end of the rotating shaft. The rotating rod is laterally and rotatably inserted and connected in the cover. This utility model has a simple structure, simplifies the processing steps, and reduces manufacturing costs.

[0004] The above-mentioned chuck has the following problems: manual locking is required when clamping the workpiece, which is time-consuming and labor-intensive; there is no lubrication system between the jaws and the chuck, which will cause wear on the jaws and the chuck after long-term use. Utility Model Content

[0005] This invention provides a hydraulic four-jaw chuck to address the problems of existing technologies.

[0006] The objective of this utility model can be achieved through the following technical solution: a hydraulic four-jaw chuck, comprising:

[0007] A chuck seat, wherein a guide groove is provided on the outer side of the chuck seat and a pushing mechanism is slidably provided inside the chuck seat, the pushing mechanism including a pushing ring, a cover plate and a limiting ring, and a pushing groove is provided on the outer side of the pushing ring at an incline;

[0008] The gripper has an inclined mating surface on the side near the push ring and a lubrication channel inside. The lubrication channel includes an oil inlet channel and a first lubrication through hole at the upper end of the gripper. The first lubrication through hole and the oil inlet channel are connected and the end is provided with an oil injection nozzle.

[0009] In a further improvement, the gripper includes a first gripper and a second gripper. The side end of the first gripper is in contact with the push ring. The second gripper includes an adjusting slider and a clamping block. An adjusting groove is provided at the lower end of the first gripper. The adjusting slider is slidably disposed in the adjusting groove and bolted to the clamping block. The lower end of the first gripper abuts against the upper end of the clamping block and a limit mechanism is provided between them.

[0010] In a further improvement, the gripper is provided with a second lubrication through hole, which is connected to the oil inlet channel.

[0011] In a further improvement, a locking hole is provided through the outer side of the push ring, a circular locking groove is provided on the outer side of the limiting ring, and a locking mechanism is provided in the locking hole. The locking mechanism includes a locking nut threadedly connected to the locking hole, a locking ball provided in the locking hole, and a locking spring provided between the locking nut and the locking ball. The other end of the locking ball abuts against the circular locking groove.

[0012] In a further improvement, four sets of guide grooves and grippers are provided.

[0013] As a further improvement, the circular locking groove is provided in several sets.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the operation of this utility model, the workpiece is first placed in the appropriate position of the chuck seat. Then, the hydraulic system drives the pushing mechanism to move the pushing ring along the guide groove. The interaction between the pushing groove and the mating surface of the jaws realizes the opening and closing action of the jaws. The hydraulic system realizes the rapid clamping and release of the jaws, reducing the labor intensity and operation time of the workers. The precise hydraulic control ensures the stability and processing accuracy of the workpiece during the processing. The automation compatibility allows the hydraulic chuck to be easily integrated into CNC machine tools and automated production lines, improving production efficiency.

[0016] 2. The gripper of this utility model is equipped with a lubrication system. Lubricating oil is injected into the lubrication channel through the oil injection nozzle and evenly distributed on the working surface of the gripper through the oil inlet channel, the first lubrication through hole and the second lubrication through hole, to ensure smooth movement of the gripper when clamping the workpiece and reduce wear.

[0017] 3. The gripper of this utility model adopts a split layout. The position between the first gripper and the second gripper can be adjusted according to the actual size of the workpiece, so that the equipment can meet the fixing requirements of different workpieces and improve the applicability of the equipment. Attached Figure Description

[0018] Figure 1It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention when locked;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the propulsion mechanism of this utility model;

[0022] Figure 5 This is an exploded view of the propulsion mechanism of this utility model;

[0023] Figure 6 This is an exploded view of the gripper of this utility model.

[0024] In the diagram, 1. Chuck seat; 11. Guide groove; 2. Pushing mechanism; 21. Pushing ring; 211. Pushing groove; 22. Cover plate; 23. Limiting ring; 231. Circular locking groove; 3. Gripper; 31. Mating surface; 32. Lubrication channel; 321. Oil inlet channel; 3211. Oil nozzle; 322. First lubrication through hole; 323. Second lubrication through hole; 41. First gripper; 411. Adjusting groove; 42. Second gripper; 421. Adjusting slider; 422. Clamping block; 5. Locking mechanism; 51. Locking nut; 52. Locking ball; 53. Locking spring; 6. Limiting mechanism. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The following is a description of the embodiments and appendices. Figures 1 to 4 The technical solution of this utility model will be further described below.

[0028] Example 1

[0029] A hydraulic four-jaw chuck, comprising:

[0030] The chuck seat 1 has a guide groove 11 on its outer side and a pushing mechanism 2 slidably disposed inside it. The pushing mechanism 2 includes a pushing ring 21, a cover plate 22 and a limiting ring 23. The pushing ring 21 has a pushing groove 211 obliquely disposed on its outer side.

[0031] The gripper 3 has an inclined mating surface 31 on the side near the push ring 21 and a lubrication channel 32 inside. The lubrication channel 32 includes an oil inlet channel 321 and a first lubrication through hole 322 on the upper end of the gripper 3. The first lubrication through hole 322 and the oil inlet channel 321 are connected and the end is provided with an oil injection nozzle 3211.

[0032] like Figures 1-6 As shown, during the operation of this utility model, the workpiece is first placed in an appropriate position on the chuck seat 1. Then, the hydraulic system drives the pushing mechanism 2, causing the pushing ring 21 to move along the guide groove 11. The pushing groove 211 interacts with the mating surface 31 of the gripper 3 to realize the opening and closing action of the gripper. The hydraulic system enables the gripper to clamp and release quickly, reducing the labor intensity and operation time of the workers. Precise hydraulic control ensures the stability and processing accuracy of the workpiece during the processing. The automation compatibility allows the hydraulic chuck to be easily integrated into CNC machine tools and automated production lines, improving production efficiency.

[0033] The gripper 3 is equipped with a lubrication system. Lubricating oil is injected into the lubrication channel 32 through the oil injection nozzle 3211 and evenly distributed on the working surface of the gripper through the oil inlet channel 321 and the first lubrication through hole 322, ensuring smooth movement of the gripper when clamping the workpiece and reducing wear.

[0034] As a further preferred embodiment, the gripper 3 includes a first gripper 41 and a second gripper 42. The side end of the first gripper 41 is in contact with the push ring 21. The second gripper 42 includes an adjusting slider 421 and a clamping block 422. The lower end of the first gripper 41 is provided with an adjusting groove 411. The adjusting slider 421 is slidably disposed in the adjusting groove 411 and bolted to the clamping block 422. The lower end of the first gripper 41 and the upper end of the clamping block 422 abut against each other and a limit mechanism 6 is provided between them.

[0035] Specifically, the gripper 3 adopts a split layout. The position between the first gripper 41 and the second gripper 42 can be adjusted according to the actual size of the workpiece, so that the equipment can meet the fixing requirements of different workpieces and improve the applicability of the equipment.

[0036] As a further preferred embodiment, the gripper 3 is provided with a second lubrication through hole 323, which is connected to the oil inlet channel 321. The lubrication effect is improved by providing the second lubrication through hole 323.

[0037] As a further preferred embodiment, a locking hole 212 is provided through the outer side of the pushing ring 21, and a circular locking groove 231 is provided on the outer side of the limiting ring 23. A locking mechanism 5 is provided in the locking hole 212. The locking mechanism 5 includes a locking nut 51 threadedly connected to the locking hole 212, a locking ball 52 provided in the locking hole 212, and a locking spring 53 provided between the locking nut 51 and the locking ball 52. The other end of the locking ball 52 abuts against the circular locking groove 231.

[0038] Specifically, in actual use, the output end of the external hydraulic drive mechanism abuts against the limit ring 23 to push the push mechanism 2. The push ring 21 and the limit ring 23 are locked by the locking mechanism 5. The locking method is simple and convenient for later maintenance and replacement.

[0039] As a further preferred embodiment, the guide groove 11 and the gripper 3 are provided in four sets.

[0040] As a further preferred embodiment, the circular locking groove 231 is provided with several sets.

[0041] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A hydraulic four-jaw chuck, characterized in that, include: A chuck seat (1) is provided with a guide groove (11) on the outside and a push mechanism (2) is slidably provided inside. The push mechanism (2) includes a push ring (21), a cover plate (22) and a limiting ring (23). The push ring (21) is provided with a push groove (211) on the outside. The gripper (3) has a mating surface (31) on the side near the push ring (21) and a lubrication channel (32) inside. The lubrication channel (32) includes an oil inlet channel (321) and a first lubrication through hole (322) at the upper end of the gripper (3). The first lubrication through hole (322) and the oil inlet channel (321) are connected and an oil injection nozzle (3211) is provided at the end.

2. A hydraulic four-jaw chuck according to claim 1, characterized in that, The gripper (3) includes a first gripper (41) and a second gripper (42). The side end of the first gripper (41) is in contact with the push ring (21). The second gripper (42) includes an adjusting slider (421) and a clamping block (422). The lower end of the first gripper (41) is provided with an adjusting groove (411). The adjusting slider (421) is slidably disposed in the adjusting groove (411) and bolted to the clamping block (422). The lower end of the first gripper (41) and the upper end of the clamping block (422) abut against each other and a limit mechanism (6) is provided between them.

3. A hydraulic four-jaw chuck according to claim 1, characterized in that, The gripper (3) is provided with a second lubrication through hole (323), and the second lubrication through hole (323) and the oil inlet channel (321) are connected.

4. A hydraulic four-jaw chuck according to claim 1, characterized in that, The outer side of the push ring (21) is provided with a locking hole (212), and the outer side of the limit ring (23) is provided with a circular locking groove (231). The locking hole (212) is provided with a locking mechanism (5). The locking mechanism (5) includes a locking nut (51) threadedly connected to the locking hole (212), a locking ball (52) provided in the locking hole (212), and a locking spring (53) provided between the locking nut (51) and the locking ball (52). The other end of the locking ball (52) abuts against the circular locking groove (231).

5. A hydraulic four-jaw chuck according to claim 1, characterized in that, The guide groove (11) and the gripper (3) are provided in four sets.

6. A hydraulic four-jaw chuck according to claim 4, characterized in that, The circular locking groove (231) is provided in several groups.

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