Two-jaw hydraulic chuck

Abstract

The utility model relates to the technical field of machining, in particular to a two-jaw hydraulic chuck which comprises a chuck seat and clamping jaws, clamping jaw sliding grooves are formed in the two sides of the chuck seat, a hydraulic jacking disc is arranged in the chuck seat, the clamping jaws are arranged in the clamping jaw sliding grooves in a sliding mode, jacking faces are obliquely arranged on the two sides of the hydraulic jacking disc, and the clamping jaws comprise the first clamping jaw and the second clamping jaw. The side, close to the hydraulic jacking disc, of the first clamping jaw is obliquely provided with a matching face, the matching face is attached to the jacking face, the second clamping jaw comprises a clamping jaw and an adjusting sliding block which are connected through a bolt, an adjusting sliding groove is formed in the lower end of the first clamping jaw, and the adjusting sliding block is arranged in the adjusting sliding groove in a sliding mode. 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; and the clamping jaws are arranged in a split mode, so that the equipment can meet the fixing requirements of different workpieces, and the applicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a two-jaw hydraulic chuck. Background Art

[0002] A chuck is a device used to clamp and secure a workpiece. It's often used on the surface of machine tools, allowing the workpiece to be machined to be held by the chuck. Manual operation allows the chuck to clamp the workpiece, and once clamped, the machine tool can be started to process the clamped workpiece, ensuring the workpiece is held firmly on the chuck's surface and prevented from falling.

[0003] Patent No. CN213195692U discloses a manual chuck, including a face plate, a cover body, a rotating rod, a handwheel, a crank handle, a turntable, a clamping block, a turbine, a gasket, a rotating shaft, a roller and a bearing; the cover body is arranged on the rear side of the face plate, the bearing is embedded in the center of the face plate, the rotating shaft is transversely inserted and fixed in the bearing, and the turbine is arranged inside the cover body; the gasket is embedded in the front center of the turbine and is sleeved and fixed on the outer side of the rear end of the rotating shaft, and the rotating rod is transversely and rotatably inserted and connected in the cover body; the utility model has a simple structure, simplifies the processing steps, and reduces the manufacturing cost.

[0004] The above-mentioned chuck has the following problems: manual locking is required when clamping the workpiece, which is time-consuming and labor-intensive; the installation position of the clamping claw cannot be adjusted, and the applicability is not strong. Utility Model Content

[0005] The utility model provides a two-jaw hydraulic chuck to solve the problems of the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions: A two-jaw hydraulic chuck, comprising: a chuck seat and a jaw, said chuck seat is provided with a jaw slide groove on both sides and a hydraulic lifting plate is provided inside, said jaw is slidably arranged in said jaw slide groove, said hydraulic lifting plate is provided with lifting surfaces inclined on both sides, said jaw comprises a first jaw and a second jaw, said first jaw is provided with a mating surface inclined on the side close to said hydraulic lifting plate, said mating surface and said lifting surface are in contact with each other, said second jaw comprises a clamping jaw connected by bolts and an adjusting slider, said first jaw is provided with an adjusting slide groove at the lower end, said adjusting slider is slidably arranged in said adjusting slide groove.

[0007] As a further improvement, a lubrication channel is provided inside the first clamping claw, and the lubrication channel includes an oil inlet channel and a first lubrication through hole provided at the top end of the first clamping claw. The first lubrication through hole and the oil inlet channel are connected and an oil nozzle is provided at the end.

[0008] As a further improvement, there are multiple groups of the first lubricating through holes, and flow grooves are provided between adjacent first lubricating through holes.

[0009] As a further improvement, a second lubricating through hole is provided on the first claw, and the second lubricating through hole is provided on a side of the mating surface close to the oil inlet channel and is connected to the oil inlet channel.

[0010] As a further improvement, a serrated groove is provided on the lower end of the first clamping claw and the upper end of the second clamping claw.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The utility model consists of a chuck base and clamping jaws. During actual use, the telescopic end of the external hydraulic cylinder is fixed to the hydraulic jacking plate. When the workpiece needs to be clamped, the hydraulic cylinder drives the hydraulic jacking plate to move forward. During the forward movement of the hydraulic jacking plate, the jacking surfaces on both sides thereof fit into the mating surface of the first clamping jaw. As the hydraulic jacking plate continues to move forward, the clamping jaws move outward along the clamping jaw slide groove under the action of the hydraulic jacking plate until the clamping jaws clamp the workpiece. The hydraulic system realizes rapid clamping and releasing of the clamping jaws, which reduces the labor intensity and operation time of the staff. The precise hydraulic control ensures the stability and processing accuracy of the workpiece during the processing. The automation compatibility enables the hydraulic chuck to be easily integrated into CNC machine tools and automated production lines, thereby improving production efficiency.

[0013] 2. The clamping jaws of the present invention adopt a split layout. The position between the first clamping jaw and the second clamping jaw 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;

[0014] 3. The utility model is provided with a lubrication channel inside the first clamping jaw. During actual use, the oiler is connected to the oiling nozzle, and the lubricating grease can flow through the lubrication channel to the first lubrication through hole and the second lubrication through hole, thereby realizing lubrication between the first clamping jaw and the chuck seat, reducing friction and wear, simplifying the lubricating oil addition and maintenance process, reducing maintenance difficulty and cost, and improving the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a partial exploded view of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the clamping claw of the utility model.

[0019] In the figure, 1. chuck seat; 11. jaw slide; 12. hydraulic lifting plate; 121. lifting surface; 2. jaw; 21. first jaw; 211. mating surface; 212. lubrication channel; 2121. oil inlet channel; 21211. oil nozzle; 2122. first lubrication through hole; 21221. circulation groove; 2123. second lubrication through hole; 213. adjustment slide; 22. second jaw; 221. clamping jaw; 222. adjustment slider; 31. serrated groove. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0022] Below with reference to the embodiment and the attached Figures 1 to 4 , the technical solution of the utility model is further elaborated.

[0023] Example 1

[0024] A two-jaw hydraulic chuck comprises: a chuck base 1 and a jaw 2, wherein the chuck base 1 is provided with jaw slides 11 on both sides and a hydraulic lifting plate 12 is provided inside, the jaw 2 is slidably arranged in the jaw slide 11, and lifting surfaces 121 are obliquely provided on both sides of the hydraulic lifting plate 12, the jaw 2 comprises a first jaw 21 and a second jaw 22, the first jaw 21 is obliquely provided with a mating surface 211 on the side close to the hydraulic lifting plate 12, the mating surface 211 and the lifting surface 121 are in contact with each other, the second jaw 22 comprises a clamping jaw 221 and an adjusting slider 222 connected by bolts, the lower end of the first jaw 21 is provided with an adjusting slide 213, and the adjusting slider 222 is slidably arranged in the adjusting slide 213.

[0025] like Figures 1 to 4As shown, the utility model consists of a chuck base 1 and a clamping jaw 2. During actual use, the telescopic end of the external hydraulic cylinder is fixed to the hydraulic jacking plate 12. When the workpiece needs to be clamped, the hydraulic cylinder drives the hydraulic jacking plate 12 to move forward. During the forward movement of the hydraulic jacking plate 12, the jacking surfaces 121 on both sides thereof fit into the matching surfaces 211 of the first clamping jaw 21. As the hydraulic jacking plate 12 continues to move forward, the clamping jaw 2 moves outward along the clamping jaw slot 11 under the action of the hydraulic jacking plate 12 until the clamping jaw 2 clamps the workpiece. The hydraulic system is used to achieve rapid clamping and release of the clamping jaw, which reduces the labor intensity and operation time of the staff. The precise hydraulic control ensures the stability and processing accuracy of the workpiece during the processing, and the automation compatibility enables the hydraulic chuck to be easily integrated into CNC machine tools and automated production lines, thereby improving production efficiency.

[0026] The clamping jaw 2 adopts a split layout, and the position between the first clamping jaw 21 and the second clamping jaw 22 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.

[0027] As a further preferred embodiment, a lubrication channel 212 is provided inside the first clamping claw 21, and the lubrication channel 212 includes an oil inlet channel 2121 and a first lubrication through hole 2122 provided at the top of the first clamping claw 21. The first lubrication through hole 2122 and the oil inlet channel 2121 are connected and an oil nozzle 21211 is provided at the end.

[0028] Specifically, a lubrication channel 212 is provided inside the first clamping jaw 21. During actual use, the oiler is connected to the oiling nozzle 21211, and the lubricating grease can flow through the lubrication channel 212 to the first lubrication hole 2122, thereby realizing lubrication between the first clamping jaw 21 and the chuck seat 1, reducing friction and wear, simplifying the lubricating oil addition and maintenance process, reducing maintenance difficulty and cost, and improving the service life of the equipment.

[0029] As a further preferred embodiment, a plurality of groups of the first lubricating through holes 2122 are provided, and flow grooves 21221 are provided between adjacent first lubricating through holes 2122. By providing the flow grooves 21221, the lubricating grease can be more comprehensively applied in the equipment.

[0030] As a further preferred embodiment, a second lubricating through hole 2123 is provided on the first claw 21 . The second lubricating through hole 2123 is provided on a side of the mating surface 211 close to the oil inlet channel 2121 and is connected to the oil inlet channel 2121 .

[0031] Specifically, the lubricating grease flows into the second lubricating through hole 2123 through the oil inlet channel 2121 to achieve lubrication between the first clamping claw 21 and the hydraulic jacking plate 12 .

[0032] As a further preferred embodiment, a serrated groove 41 is provided at the lower end of the first clamping claw 21 and the upper end of the second clamping claw 22. The serrated groove 41 improves the locking between the first clamping claw 21 and the second clamping claw 22 to avoid relative displacement between the two during use.

[0033] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A two-jaw hydraulic chuck, characterized in that: include: A chuck seat (1) and a clamping jaw (2), wherein the chuck seat (1) is provided with clamping jaw grooves (11) on both sides and a hydraulic lifting plate (12) is provided inside, the clamping jaw (2) is slidably provided in the clamping jaw grooves (11), and lifting surfaces (121) are obliquely provided on both sides of the hydraulic lifting plate (12), the clamping jaw (2) includes a first clamping jaw (21) and a second clamping jaw (22), the first clamping jaw (21) is obliquely provided with a mating surface (211) on the side close to the hydraulic lifting plate (12), and the mating surface (211) and the lifting surface (121) are in contact with each other, the second clamping jaw (22) includes a clamping clamping jaw (221) and an adjusting slider (222) connected by bolts, the lower end of the first clamping jaw (21) is provided with an adjusting groove (213), and the adjusting slider (222) is slidably provided in the adjusting groove (213).

2. A two-jaw hydraulic chuck according to claim 1, characterized in that: A lubrication channel (212) is provided inside the first clamping claw (21), and the lubrication channel (212) includes an oil inlet channel (2121) and a first lubrication through hole (2122) provided at the top end of the first clamping claw (21), the first lubrication through hole (2122) and the oil inlet channel (2121) are connected and an oiling nozzle (21211) is provided at the end.

3. A two-jaw hydraulic chuck according to claim 2, characterized in that: The first lubricating through holes (2122) are provided in multiple groups, and a flow groove (21221) is provided between adjacent first lubricating through holes (2122).

4. A two-jaw hydraulic chuck according to claim 2 or 3, characterized in that: A second lubricating through hole (2123) is provided on the first claw (21), and the second lubricating through hole (2123) is provided on a side of the mating surface (211) close to the oil inlet channel (2121) and is connected to the oil inlet channel (2121).

5. A two-jaw hydraulic chuck according to claim 1, characterized in that: The lower end of the first clamping claw (21) and the upper end of the second clamping claw (22) are both provided with a sawtooth groove (41).

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