Hydraulic chuck of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool hydraulic chuck which comprises a hydraulic chuck body, an extension assembly is arranged on one side of the hydraulic chuck body, the extension assembly comprises a sliding groove and a sliding block, the sliding groove is formed in one side of the hydraulic chuck body, the sliding block is connected to the inner side wall of the sliding groove in a sliding mode, and an extension clamping block is fixedly installed on one side of the sliding block. First fixing plates are fixedly installed on the two sides of the hydraulic chuck body respectively, an adjusting groove is formed in one side of each first fixing plate, a second fixing plate is fixedly installed on one side of each extending clamping block, and a pull rod is connected to one side of each second fixing plate in a sliding mode. According to the hydraulic chuck of the numerical control machine tool, clamping can be adjusted according to the size of an object through the arranged extension assembly, so that clamping is more convenient, the time needed for replacing a large hydraulic chuck is shortened, the using effect is better, the application range is wider, and the using experience is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe hydraulic chuck technical field, specifically a numerical control machine tool hydraulic chuck. BACKGROUND

[0002] Lathe hydraulic chuck is an important device for clamping workpieces on lathes (especially on turning machines). The following is a detailed introduction:

[0003] I. Structure composition

[0004] Chucking body

[0005] This is the main part of the hydraulic chuck, usually a circular structure, with a connecting flange on the outer periphery, which can fix the chuck on the front end of the spindle of the machine tool. Its internal design has multiple piston chambers for accommodating hydraulic oil driven pistons, for example, in some three-jaw hydraulic chucks, there are three evenly distributed piston cavities on the chuck body, corresponding to the driving of the three claws, the claws are the parts that directly contact and clamp the workpiece. Generally, there are soft claws and hard claws, the hardness of the hard claws is higher, and the wear resistance is good, which is suitable for rough machining or clamping regular-shaped workpieces with high hardness; the soft claws are inlaid with soft materials such as copper alloy on the basis of the hard claws, which can better fit the shape of the workpiece and reduce damage to the surface of the workpiece, and are commonly used for finishing.

[0006] Patent No. "CN204545478U" discloses "a numerical control machine tool hydraulic chuck, including claw, sliding block, workbench, oil cylinder one and oil cylinder two, the claw is fixedly connected with the sliding block, the sliding block is slidably connected with the workbench, the workbench is provided with a lever and a horizontal pull block, the horizontal pull block is provided with a locking nut on one side, the horizontal pull block is fixedly connected with the sliding block through the locking nut, the oil cylinder one is arranged above the oil cylinder two, the oil cylinder one is fixedly connected with the workbench, the oil cylinder one is provided with a piston one, the oil cylinder two is provided with a piston two, the piston one and the piston two are slidably connected, the piston two is provided with a guide sleeve, the guide sleeve is drivingly connected with the piston one and the piston two respectively, the utility model has the advantages of large clamping force, small clamping deviation and convenient operation".

[0007] In view of the above problems, the existing hydraulic chuck needs to be replaced when the clamped article is large, which wastes a lot of time, and there is no good auxiliary dismounting function, which is easy to fall off during dismounting and affects the use effect.

[0008] Therefore, the utility model provides a numerical control machine tool hydraulic chuck to solve the above problems. Utility model content

[0009] The utility model provides a numerical control machine tool hydraulic chuck, solved above -mentioned existing hydraulic chuck needs to hold the article bigger time needs to replace big size's hydraulic chuck, therefore the problem of more time waste when replacing.

[0010] In order to realize above -mentioned purpose, the utility model discloses a numerical control machine tool hydraulic chuck through following technical scheme: a numerical control machine tool hydraulic chuck, including hydraulic chuck body, the one side of hydraulic chuck body is equipped with extension assembly, the extension assembly includes the sliding slot and the sliding block, the sliding slot is equipped in the one side of hydraulic chuck body, the sliding block is connected in the inner side wall of sliding slot, the one side of sliding block is fixedly installed with extension clamp block, both sides of hydraulic chuck body are fixedly installed with fixed plate no.

[0011] Further, the side wall of hydraulic chuck body is fixedly connected with auxiliary dismounting assembly, the auxiliary dismounting assembly includes connecting frame and handle, the connecting frame is fixedly connected on the side wall of hydraulic chuck body, the handle is arranged on the inner side wall of connecting frame, the inner side wall of handle is slidably connected with moving plate, one side of moving plate is fixedly connected with spring no.

[0012] The above technical scheme can assist in dismounting work, and dismounting is more convenient.

[0013] Further, the auxiliary dismounting assembly further includes pull ring no.

[0014] The above technical scheme utilizes the pull ring to conveniently pull the moving plate.

[0015] Further, the number of connecting frames is three, and the three connecting frames are arranged around the circumference of the hydraulic chuck body.

[0016] The above technical scheme can achieve installation effect at any angle.

[0017] Further, the connecting frame is rectangular, and the edges of the connecting frame are rounded.

[0018] The above technical scheme can make the surface smoother and prevent finger scratches.

[0019] Further, the extension assembly further comprises a pull ring I, which is fixedly connected to one end of the pull rod.

[0020] By using the pull ring I, the pull rod can be conveniently pulled for movement.

[0021] Advantages

[0022] Compared with the prior art, the numerical control machine tool hydraulic chuck has the following advantages:

[0023] 1. The numerical control machine tool hydraulic chuck can adjust clamping according to the size of the article, so that clamping is more convenient, the time required for replacing a large hydraulic chuck is reduced, the use effect is better, the applicable range is wider, and the use experience is effectively ensured.

[0024] 2. The numerical control machine tool hydraulic chuck is provided with an auxiliary dismounting assembly, which can assist in dismounting work, so that dismounting is more convenient, and the replacement process will not cause hand-off falling, the hand-off falling causes the damage to be reduced, the cost caused by the damage is reduced, and the use effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the following will be briefly introduced the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, for the ordinary skilled in the art, on the premise of not paying the creative labor, other drawings can also be obtained according to these drawings.

[0026] Figure 1 It is the overall structure schematic diagram of the utility model;

[0027] Figure 2 It is the overall structure schematic diagram of the utility model Figure 1 It is the enlarged view of structure A in the utility model;

[0028] Figure 3 It is the overall structure side view of the utility model;

[0029] Figure 4 It is the enlarged view of structure B in the utility model Figure 3 It is the enlarged view of structure B in the utility model

[0030] In the figure: 1, hydraulic chuck body; 2, extension assembly; 21, sliding groove; 22, sliding block; 23, extension clamp block; 24, fixed plate one; 25, adjusting groove; 26, fixed plate two; 27, pull rod; 28, spring one; 29, limiting plate; 210, pull ring one; 3, auxiliary disassembly assembly; 31, connecting frame; 32, handle; 33, moving plate; 34, spring two; 35, clamping rod; 36, pull ring two. DETAILED DESCRIPTION

[0031] It should be noted that in the description of the embodiments of the present application, the terms "front, back, left, right, up, down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "mounting", "connecting", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The present application will be further described in detail below with the aid of the drawings and examples.

[0033] Reference Figures 1 to 4 The embodiments of the present application provide a numerical control machine tool hydraulic chuck, which comprises a hydraulic chuck body 1, an extension assembly 2 is formed on one side of the hydraulic chuck body 1, the extension assembly 2 comprises a sliding groove 21 and a sliding block 22, the sliding groove 21 is formed on one side of the hydraulic chuck body 1, the sliding block 22 is slidingly connected to the inner side wall of the sliding groove 21, an extension clamp block 23 is fixedly installed on one side of the sliding block 22, two fixed plate ones 24 are respectively fixedly installed on the two sides of the hydraulic chuck body 1, an adjusting groove 25 is formed on one side of the fixed plate one 24, a fixed plate two 26 is fixedly installed on one side of the extension clamp block 23, a pull rod 27 is slidingly connected to one side of the fixed plate two 26, the pull rod 27 is clamped between the adjusting groove 25, a spring one 28 is sleeved on the side wall of the pull rod 27, a limiting plate 29 is fixedly connected to the side wall of the pull rod 27, the extension assembly 2 further comprises a pull ring one 210, the pull ring one 210 is fixedly connected to one end of the pull rod 27.

[0034] In this embodiment, first start hydraulic chuck body 1 can clamp the work of the article, when need to clamp the article is larger, first pull the pull ring 210 can pull the pull rod 27 through the limiting plate 29 extrusion spring 28 to shrink, so that the pull rod 27 can be separated from the adjusting groove 25, then pull the extension clamp block 23 can let the slider 22 in the slide slot 21 inside sliding, then loosen the pull ring 210 can let the spring 28 reset, so that the spring 28 can drive the limiting plate 29 reset, so that the pull rod 27 can be clamped together with the adjusting groove 25, also let the hydraulic chuck body 1 can be through the extension clamp block 23 to clamp the work of larger article, and simple and convenient to clamp.

[0035] Referring to Figures 1 to 4 In one aspect of the present embodiment, the side wall of the hydraulic chuck body 1 is fixedly connected with the auxiliary disassembly assembly 3, the auxiliary disassembly assembly 3 comprises a connecting frame 31 and a handle 32, the connecting frame 31 is fixedly connected on the side wall of the hydraulic chuck body 1, the handle 32 is arranged on the inner side wall of the connecting frame 31, the inner side wall of the handle 32 is slidingly connected with a moving plate 33, one side of the moving plate 33 is fixedly connected with a spring 34, one end of the moving plate 33 is fixedly connected with a clamping rod 35, the clamping rod 35 is clamped with the connecting frame 31, the auxiliary disassembly assembly 3 further comprises a pull ring 36, the pull ring 36 is fixedly installed on one side of the moving plate 33, the number of the connecting frame 31 is three, and the three connecting frames 31 are arranged around the circumference of the hydraulic chuck body 1, the shape of the connecting frame 31 is rectangular, and the edge of the connecting frame 31 is rounded.

[0036] In this embodiment, when the hydraulic chuck body 1 needs to be disassembled, first pull the pull ring 36 can make the moving plate 33 extrude the spring 34 to shrink, then loosen the pull ring 36 can make the spring 34 reset the moving plate 33, so that the clamping rod 35 can be clamped with the connecting frame 31 together to complete the installation work of the handle 32, hold the handle 32 can make the hydraulic chuck body 1 more stable in the process of disassembly, in order to assist the disassembly work, and when not need to disassemble can disassemble the handle 32, will not affect the normal use of the hydraulic chuck body 1.

[0037] Working principle: first start hydraulic chuck body 1 can be clamped work, when need to clamp the larger goods, first pull the pull ring 210 can pull the pull rod 27 through the limiting plate 29 extrusion spring 28 shrink, so that the pull rod 27 can be separated between the adjusting groove 25, after pulling the extension clamp block 23 can let the slider 22 in the slide slot 21 inside sliding, then loosen the pull ring 210 can let the spring 28 reset, so that the spring 28 can drive the limiting plate 29 reset, so that the pull rod 27 can be clamped together with the adjusting groove 25, also let the hydraulic chuck body 1 can be through the extension clamp block 23 to clamp the larger goods work, and clamping simple and convenient.

[0038] When the hydraulic chuck body 1 needs to be disassembled, first pull the pull ring 36 can make the moving plate 33 extrusion spring 34 shrink, then loosen the pull ring 36 can make the spring 34 reset the moving plate 33, so that the clamp rod 35 can be clamped together with the connecting frame 31, to complete the installation work of handle 32, hold the handle 32 can make the hydraulic chuck body 1 more stable in the process of disassembly, in order to assist disassembly work, and when not need to disassemble can disassemble the handle 32, will not affect the normal use of the hydraulic chuck body 1.

[0039] It should be noted that in this text, such as first and second relationship terms, only to distinguish one entity or operation from another entity or operation, and does not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hydraulic chuck for a numerically controlled machine tool, comprising a hydraulic-chuck body (1), characterized in that: The side of the hydraulic chuck body (1) is provided with an extension assembly (2), the extension assembly (2) comprises a sliding groove (21) and a sliding block (22), the sliding groove (21) is provided on the side of the hydraulic chuck body (1), the sliding block (22) is slidably connected to the inner side wall of the sliding groove (21), the extension clamp block (23) is fixedly installed on the side of the sliding block (22), the two sides of the hydraulic chuck body (1) are respectively fixedly installed with a fixed plate one (24), the side of the fixed plate one (24) is provided with an adjusting groove (25), the side of the extension clamp block (23) is fixedly installed with a fixed plate two (26), the side of the fixed plate two (26) is slidably connected with a pull rod (27), the pull rod (27) is clamped with the adjusting groove (25), the spring one (28) is sleeved on the side wall of the pull rod (27), and the limit plate (29) is fixedly connected on the side wall of the pull rod (27).

2. The hydraulic chuck for CNC machine according to claim 1, characterized in that: The side wall of the hydraulic chuck body (1) is fixedly connected with an auxiliary dismounting assembly (3), the auxiliary dismounting assembly (3) comprises a connecting frame (31) and a handle (32), the connecting frame (31) is fixedly connected on the side wall of the hydraulic chuck body (1), the handle (32) is arranged on the inner side wall of the connecting frame (31), the inner side wall of the handle (32) is slidably connected with a moving plate (33), the side of the moving plate (33) is fixedly connected with a spring two (34), one end of the moving plate (33) is fixedly connected with a clamping rod (35), and the clamping rod (35) is clamped with the connecting frame (31).

3. A CNC machine hydraulic chuck according to claim 2, characterized in that: The auxiliary dismounting assembly (3) further comprises a pull ring two (36), and the pull ring two (36) is fixedly installed on the side of the moving plate (33).

4. The hydraulic chuck for CNC machine tools according to claim 2, characterized in that: The number of the connecting frame (31) is three, and the three connecting frames (31) are arranged around the circumference of the hydraulic chuck body (1).

5. The hydraulic chuck for CNC machine tools according to claim 2, characterized in that: The shape of the connecting frame (31) is rectangular, and the edges of the connecting frame (31) are rounded.

6. The hydraulic chuck for CNC machine tools according to claim 1, characterized in that: The extension assembly (2) further comprises a pull ring one (210), and the pull ring one (210) is fixedly connected to one end of the pull rod (27).

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