CNC chuck mechanism

Abstract

The utility model discloses a CNC chuck mechanism which comprises a chuck base, a boss is arranged at one end of the top of the chuck base, a V-shaped clamping groove is formed in the middle of the boss, and a positioning sliding groove is formed in one side of the chuck base in the length direction of the chuck base. The other end of the top of the chuck base is provided with a clamping jaw sliding along the positioning sliding groove. The clamping jaw is composed of a V-shaped clamping frame and a sliding block connected to one end of the clamping frame, and a ratchet is arranged on one side of the sliding block. Workpieces are clamped and fixed through matching of the clamping jaws and the clamping grooves, the clamping jaws are moved to be matched with the workpieces of different sizes, the adjusted clamping jaws are fixed through matching of the pawls and the ratchets, and the elastic structures extruding the clamping jaw limiting plates towards the sliding blocks can prevent meshing loosening of the pawls and the ratchets. And the engagement between the pawl and the ratchet can be released by shifting the clamping jaw limiting plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to chuck mechanism technical field, specifically a kind of CNC chuck mechanism. BACKGROUND

[0002] Machine tool refers to the machine that makes machine, also called working mother machine or tool machine, is usually simply called machine tool. Generally divided into metal cutting machine tool, forging and pressing machine tool and woodworking machine tool etc. Machine tool plays a major role in the construction of modernization of national economy.

[0003] The chuck mechanism of the current machine tool is inconvenient to position different models and sizes of chucks when in use, and is prone to looseness after positioning. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of CNC chuck mechanism to solve the problems in prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of CNC chuck mechanism, including chuck base, the top of chuck base one end is equipped with boss, the middle position of boss is equipped with the clamping groove of V shape, the side of chuck base is equipped with positioning sliding slot along the length direction of chuck base, the top of chuck base other end is installed along the clamping jaw of positioning sliding slot sliding;

[0006] The clamping jaw is composed of a V-shaped clamping frame and a sliding block connected to one end of the clamping frame, and the sliding block is provided with a ratchet on one side.

[0007] The bottom of the chuck base is provided with an assembly groove below the positioning sliding slot, the assembly groove is provided with a clamping jaw limiting plate, one end of the clamping jaw limiting plate is rotatably connected to the chuck base, the other end of the clamping jaw limiting plate extends to the chuck base, a pawl is provided on one side of the clamping jaw limiting plate, and the pawl on the clamping jaw limiting plate cooperates with the ratchet on the sliding block.

[0008] The assembly groove is provided with an elastic structure for pressing the clamping jaw limiting plate towards the sliding block.

[0009] Preferably, the elastic structure is composed of an extrusion block, a positioning rod and a spring, one side of the extrusion block is a circular arc surface and the other side is a flat surface, the positioning rod is provided with two flats and is fixed perpendicularly on the flat surface of the extrusion block, the spring is sleeved on the positioning rod, and the chuck base is provided with a plug-in hole matched with the positioning rod.

[0010] Preferably, the other end of the clamping jaw limiting plate is fixed with a knob, a limiting groove is provided between the clamping jaw limiting plate and the knob, and the bottom of the chuck base is provided with a limiting plate matched with the limiting groove.

[0011] Preferably, the other end of the card holder is provided with a through hole, and the other side of the top of the chuck base is provided with a sliding rod matched with the through hole along the length direction of the chuck base.

[0012] Preferably, the middle position of the other end of the top of the chuck base is provided with a clearance opening matched with the clamping jaw.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses realize the clamping of workpiece through the cooperation of clamping jaw and clamping groove, and the clamping jaw is moved to adapt to workpieces of different sizes, and the adjusted clamping jaw is fixed through the cooperation of ratchet pawl and ratchet tooth, and the elastic structure that the clamping jaw limiting plate is extruded to the sliding block prevents the ratchet pawl and ratchet tooth from loosening, and the ratchet pawl and ratchet tooth are disengaged by pulling the clamping jaw limiting plate.

[0014] The elastic structure is composed of an extrusion block, a positioning rod and a spring, and the part of the extrusion block in contact with the clamping jaw limiting plate is arc-shaped, so that the extrusion block is always in effective contact with the clamping jaw limiting plate.

[0015] A limiting groove is formed between the clamping jaw limiting plate and the push block, and a limiting plate matched with the limiting groove is arranged at the bottom of the chuck base, the limiting plate is clamped in the limiting groove, thereby limiting the clamping jaw limiting plate, and the rotation of the clamping jaw limiting plate is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification and are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0017] Figure 1 It is the structure schematic view of the top of the whole utility model;

[0018] Figure 2 It is the structure schematic view of the bottom of the whole utility model;

[0019] Figure 3 It is the structure schematic view of the clamping jaw of the utility model;

[0020] Figure 4 It is the structure schematic view of the clamping jaw limiting plate of the utility model.

[0021] In the drawings: 1, chuck base; 2, positioning sliding slot; 3, boss; 4, clamping groove; 5, sliding rod; 6, clamping jaw; 7, clearance opening; 8, clamping jaw limiting plate; 9, limiting plate; 10, extrusion block; 11, positioning rod; 12, spring; 13, ratchet pawl; 14, limiting groove; 15, push block; 16, through hole; 17, card holder; 18, sliding block; 19, ratchet tooth. DETAILED DESCRIPTION

[0022] In order to make the purposes, technical schemes and advantages of the embodiments of the present application clearer, the technical schemes in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without creative effort based on the embodiments of the present application shall fall within the scope of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort shall fall within the scope of the present application.

[0023] Please refer to Figures 1-4 In the embodiments of the present application, a CNC chuck mechanism comprises a chuck base 1, a boss 3 is arranged at one end of the top of the chuck base 1, a V-shaped clamping groove 4 is arranged at the middle position of the boss 3, a positioning sliding groove 2 is arranged on one side of the chuck base 1 along the length direction of the chuck base 1, a clamping jaw 6 is arranged at the other end of the top of the chuck base 1 and slides along the positioning sliding groove 2, a clearance opening 7 adapted to the clamping jaw 6 is arranged at the middle position of the other end of the top of the chuck base 1; the clamping jaw 6 is composed of a V-shaped clamping frame 17 and a sliding block 18 connected to one end of the clamping frame 17, and a ratchet 19 is arranged on one side of the sliding block 18; a through hole 16 is arranged at the other end of the clamping frame 17, and a sliding rod 5 matched with the through hole 16 is arranged on the other side of the top of the chuck base 1 along the length direction of the chuck base 1.

[0024] A mounting groove is arranged below the positioning sliding groove 2 at the bottom of the chuck base 1, a clamping jaw limiting plate 8 is arranged in the mounting groove, one end of the clamping jaw limiting plate 8 is rotationally connected to the chuck base 1, the other end of the clamping jaw limiting plate 8 extends to the chuck base 1, a ratchet pawl 13 is arranged on one side of the clamping jaw limiting plate 8, and the ratchet pawl 13 on the clamping jaw limiting plate 8 is matched with the ratchet 19 on the sliding block 18; an elastic structure is arranged in the mounting groove to press the clamping jaw limiting plate 8 towards the sliding block 18.

[0025] The elastic structure is composed of a pressing block 10, a positioning rod 11 and a spring 12, one side of the pressing block 10 is a circular arc surface and the other side is a flat surface, the positioning rod 11 is arranged on the flat surface and is fixed perpendicularly on the pressing block 10, the spring 12 is sleeved on the positioning rod 11, and a plug-in hole matched with the positioning rod 11 is arranged on the chuck base 1.

[0026] The other end of the claw limiting plate 8 is fixed with a pushing block 15, a limiting groove 14 is arranged between the claw limiting plate 8 and the pushing block 15, and the bottom of the chuck base 1 is provided with a limiting plate 9 matched with the limiting groove 14.

[0027] The working principle of the utility model is: the utility model realizes the clamping and fixing of workpieces through the cooperation of the claw 6 and the clamping groove 4, the claw 6 is moved to adapt to workpieces of different sizes, the claw 6 after adjustment is fixed through the cooperation of the pawl 13 and the ratchet tooth 19, the elastic structure that extrudes the claw limiting plate 8 to the sliding block 18 can prevent the pawl 13 and the ratchet tooth 19 from loosening, and the cooperation of the pawl 13 and the ratchet tooth 19 can be released by pushing the claw limiting plate 8;

[0028] The elastic structure is composed of the extrusion block 10, the positioning rod 11 and the spring 12, the part of the extrusion block 10 in contact with the claw limiting plate 8 is arc-shaped, and the arc-shaped structure can make the extrusion block 10 always effectively contact with the claw limiting plate 8;

[0029] The limiting groove 14 is arranged between the claw limiting plate 8 and the pushing block 15, the bottom of the chuck base 1 is provided with the limiting plate 9 matched with the limiting groove 14, the limiting plate 9 is clamped in the limiting groove 14, thereby limiting the claw limiting plate 8, and the rotation of the claw limiting plate 8 is more stable.

[0030] Finally, it should be pointed out that: the above described only for the preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A CNC chuck mechanism comprising a chuck base (1), characterized in that: The top end of the chuck base (1) is provided with a boss (3), a V-shaped clamping slot (4) is formed in the middle of the boss (3), a positioning sliding groove (2) is formed in one side of the chuck base (1) along the length direction of the chuck base (1), and a clamping jaw (6) sliding along the positioning sliding groove (2) is installed at the other end of the top of the chuck base (1); The clamping jaw (6) is composed of a V-shaped clamping frame (17) and a sliding block (18) connected to one end of the clamping frame (17), and the sliding block (18) is provided with a ratchet (19) on one side; A mounting groove is formed below the positioning sliding groove (2) at the bottom of the chuck base (1), a clamping jaw limiting plate (8) is arranged in the mounting groove, one end of the clamping jaw limiting plate (8) is rotatably connected with the chuck base (1), the other end of the clamping jaw limiting plate (8) extends to the chuck base (1), a pawl (13) is arranged on one side of the clamping jaw limiting plate (8), and the pawl (13) on the clamping jaw limiting plate (8) cooperates with the ratchet (19) on the sliding block (18); The mounting groove is provided with an elastic structure for pressing the clamping jaw limiting plate (8) towards the sliding block (18).

2. A CNC chuck mechanism according to claim 1, characterized in that: The elastic structure is composed of an extrusion block (10), a positioning rod (11) and a spring (12), one side of the extrusion block (10) is a circular arc surface, the other side is a plane, the positioning rod (11) is provided with two planes and is fixed perpendicularly on the plane of the extrusion block (10), the spring (12) is sleeved on the positioning rod (11), and the chuck base (1) is provided with a plug hole matched with the positioning rod (11).

3. A CNC chuck mechanism according to claim 1, characterized in that: The other end of the clamping jaw limiting plate (8) is fixed with a push block (15), a limiting groove (14) is formed between the clamping jaw limiting plate (8) and the push block (15), and the bottom of the chuck base (1) is provided with a limiting plate (9) matched with the limiting groove (14).

4. The CNC chuck mechanism according to claim 1, characterized in that: A through hole (16) is formed in the other end of the clamping frame (17), and a sliding rod (5) matched with the through hole (16) is arranged on the other side of the top of the chuck base (1) along the length direction of the chuck base (1).

5. The CNC chuck mechanism according to claim 1, characterized in that: A clearance opening (7) matched with the clamping jaw (6) is formed in the middle of the other end of the top of the chuck base (1). A clearance opening (7) matched with the clamping jaw (6) is formed in the middle of the other end of the top of the chuck base (1).

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