Drill chuck for numerical control machine tool

Abstract

The utility model discloses a drill chuck for a numerical control machine tool, which belongs to the technical field of numerical control machine tools and comprises an assembly shaft, an assembly table arranged at the bottom end of the assembly shaft, a transmission bevel gear arranged at the bottom of the assembly table, a clamping seat rotatably connected to the surface of the assembly table, and a reinforcing partition connected to the inside of the clamping seat. A clamping assembly for quickly assembling a drill bit is arranged on the surface of the reinforcing partition plate, and a driven bevel gear of the clamping assembly is in meshing transmission connection with a transmission bevel gear; the connecting sleeve is connected to the surface of the assembling shaft, guide rods are distributed in the connecting sleeve, and locking mechanisms for conducting anti-disengaging positioning on the clamping base are arranged on the surfaces of the guide rods; drill bits of different sizes can be assembled and replaced, the drill chuck does not need to be disassembled together when the drill bits are replaced, the drill bit clamping accuracy of the drill chuck is effectively guaranteed, the drill bit disassembling and assembling efficiency is further improved, and the equipment using effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field, concretely is a drill chuck for numerical control machine tool. BACKGROUND

[0002] Numerical control machine tool is the abbreviation of digital control machine tool, is a kind of automatic machine tool equipped with program control system, the control system can logically process the program with control code or other symbolic instruction specification, and it is translated by code, with code number, input numerical control device through information carrier, is handled by numerical control device, and various control signals are sent, the action of machine tool is controlled, according to the shape and size required by drawing, automatically processes spare parts, but the drill chuck for part numerical control machine tool can only be suitable for one type drill bit in the specific use process, when different drill bits are needed, the drill bit cannot be individually disassembled and replaced, the drill bit needs to be disassembled together with the drill chuck, long-term disassembly of the drill chuck can cause drill chuck hole position loosening, leading to the phenomenon of inaccurate machining positioning.

[0003] In the prior art, the utility model discloses a kind of drill chuck for numerical control machine tool, including numerical control machine tool body, the inside front side of the numerical control machine tool body is slidably connected with protective door, the inside bottom end of the numerical control machine tool body is equipped with a plurality of limiting grooves, the inside top end of the numerical control machine tool body is fixedly connected with hydraulic cylinder, the bottom of the hydraulic cylinder is fixedly connected with mounting plate, the inside left and right sides of the mounting plate are slidably connected with mounting block, the bottom left and right sides of the mounting plate are fixedly connected with limiting plate, the similar side of two The limiting plate is fixedly connected with elastic component, the inside of the mounting plate is equipped with sliding slot, the inside of the limiting plate is rotatably connected with screw rod.In the utility model, different drill bits can be conveniently and quickly replaced by numerical control machine tool, and the drill chuck does not need to be disassembled, the use rate of equipment is improved, and overall working efficiency is improved.

[0004] It can be known from the above-mentioned drill chuck for numerical control machine tool that the prior art has the following problems: only one type of drill bit can be used, different drill bits cannot be individually disassembled and replaced, the drill bit needs to be disassembled together with the drill chuck, long-term disassembly of the drill chuck can cause drill chuck hole position loosening, leading to inaccurate machining positioning, therefore, we need to propose a drill chuck for numerical control machine tool. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a drill chuck for numerical control machine tool, which can assemble and replace drill bits of different sizes without disassembling the drill chuck when replacing the drill bit, effectively ensuring the accuracy of the drill chuck clamping the drill bit, further improving the efficiency of disassembling and assembling the drill bit, and improving the effect of equipment use to solve the problems proposed in the above background.

[0006] In order to achieve the above object, the utility model provides: a drill chuck for numerical control machine tool, including assembly shaft, the bottom of assembly shaft is provided with assembly table, the bottom of assembly table is provided with transmission bevel gear, the surface of assembly table is rotatably connected with clamping seat, the inside of clamping seat is connected with reinforced partition, the surface of reinforced partition is provided with the clamping assembly of quick assembly to different size drill, the driven bevel gear of clamping assembly is meshed transmission connection with transmission bevel gear.

[0007] Preferably, the clamping assembly comprises: an installation cylinder connected to the top of the reinforced partition, and a lead screw rotatably installed on the surface of the installation cylinder; wherein the driven bevel gear is movably installed on the end of the lead screw, and the surface of the lead screw movably connects a clamping jaw.

[0008] Preferably, the surface of the reinforced partition is provided with a moving sliding groove, the clamping jaw is arranged below the reinforced partition through the moving sliding groove, and the two sides of the clamping jaw are slidably connected to the inner wall of the moving sliding groove.

[0009] Preferably, the top surface of the installation cylinder is connected with a limiting ring, the inner wall of the assembly table is provided with an assembly clamping groove, and the surface of the limiting ring is rotatably connected to the inner wall of the assembly clamping groove.

[0010] Preferably, the locking mechanism comprises: a connecting stop ring slidably connected to the surface of the guide rod, and a connecting rod connected to the bottom end of the connecting stop ring; wherein the bottom end of the connecting rod is connected with a locking tooth ring, the outer side of the connecting stop ring is connected with an adjusting sleeve, and the inside of the clamping seat is provided with a positioning tooth disc above the reinforced partition.

[0011] Preferably, the tooth surface of the positioning tooth disc is meshed with the locking tooth ring, the surface of the connecting sleeve is provided with a limiting groove, and the adjusting sleeve is slidably connected to the surface of the connecting sleeve through the limiting groove.

[0012] Preferably, the surface of the guide rod is sleeved with an anti-loosening spring, and the bottom end of the anti-loosening spring is connected to the top of the connecting stop ring.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a cooperation setting of assembly platform, connecting sleeve, guide rod, clamping seat, clamping assembly and locking mechanism etc. structure, when assembling, the drill bit is placed in the inner chamber bottom of clamping seat, and carries out the rotation clamping seat, makes the clamping seat rotate through the cooperation of limiting ring and assembly clamping groove, makes the driven bevel gear of screw end and transmission bevel gear cooperate to rotate, can the clamping claw on the surface of screw can cooperate and hold fixed to the drill bit of different size, can the drill bit is assembled fast, when needing to disassemble and replace, the connecting block ring is moved to the upper through the adjusting sheath, makes the connecting block ring cooperate guide rod and move, separates the locking tooth ring and the positioning tooth disc, removes the rotation restriction to the clamping seat, can the clamping seat reverse rotation is made, makes the clamping claw unfasten the drill bit of assembly, further improves the efficiency of the drill bit disassembly and assembly, improves the effect of equipment use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the split state structure schematic diagram of the utility model;

[0017] Figure 3 It is the assembly platform structure schematic diagram of the utility model;

[0018] Figure 4 It is the connecting sleeve structure schematic diagram of the utility model;

[0019] Figure 5 It is the inside structure schematic diagram of the clamping seat of the utility model.

[0020] In the drawing: 1, assembly shaft;2, assembly platform;3, assembly clamping groove;4, transmission bevel gear;5, connecting sleeve;6, limiting groove;7, guide rod;8, anti -unthreading spring;9, connecting block ring;10, connecting rod;11, locking tooth ring;12, adjusting sheath;13, clamping seat;14, positioning tooth disc;15, reinforcing baffle;16, mounting cylinder;17, limiting ring;18, screw;19, driven bevel gear;20, clamping claw;21, moving sliding slot. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-5The utility model provides: a drill chuck for numerical control machine tool, including assembly shaft 1, the bottom of assembly shaft 1 is provided with assembly platform 2, the bottom of assembly platform 2 is provided with transmission bevel gear 4, the surface rotationally connected of assembly platform 2 has clamping seat 13, the inside of clamping seat 13 is connected with reinforcing baffle 15, the surface of reinforcing baffle 15 is provided with the clamping assembly of quick assembly to different size drill bit, the driven bevel gear 19 of clamping assembly is with transmission bevel gear 4 meshing transmission connection;The connecting sleeve 5 of connection in the surface of assembly shaft 1, the inside of connecting sleeve 5 is distributed and is provided with guide rod 7, the surface of guide rod 7 is provided with the locking mechanism of preventing the anti -drop positioning of clamping seat 13.

[0023] It is worth mentioning that, through the cooperation of assembly platform 2, connecting sleeve 5, guide rod 7, clamping seat 13, clamping assembly and locking mechanism, different size drill bits can be assembled and replaced, without disassembling the drill chuck when replacing the drill bit, effectively ensuring the accuracy of the drill chuck clamping the drill bit, further improving the efficiency of drill bit disassembly and assembly, and improving the effect of equipment use.

[0024] Specifically, the clamping assembly comprises: an installation cylinder 16 connected to the top of the reinforcing baffle 15, and a lead screw 18 rotatably installed on the surface of the installation cylinder 16; wherein, the driven bevel gear 19 is movably installed on the end of the lead screw 18, and the surface of the lead screw 18 movably connects a clamping jaw 20. The reinforcing baffle 15 is a structure for installing the installation cylinder 16, the lead screw 18 is a structure for transmitting the clamping jaw 20, and the clamping jaw 20 is a structure for assembling and clamping the drill bit.

[0025] In addition, the surface of the reinforcing baffle 15 is provided with a moving sliding groove 21, the clamping jaw 20 passes through the moving sliding groove 21 and is arranged below the reinforcing baffle 15, and the two sides of the clamping jaw 20 are slidably connected to the inner wall of the moving sliding groove 21. The top surface of the installation cylinder 16 is connected with a limiting ring 17, the inner wall of the assembly platform 2 is provided with an assembly clamping groove 3, and the surface of the limiting ring 17 is rotatably connected to the inner wall of the assembly clamping groove 3. The moving sliding groove 21 plays a limiting and guiding role for the clamping jaw 20, and the limiting ring 17 is a limiting assembly structure cooperating with the assembly clamping groove 3.

[0026] The locking mechanism comprises: a connecting stop ring 9 slidably connected to the surface of the guide rod 7, and a connecting rod 10 connected to the bottom end of the connecting stop ring 9; wherein, the bottom end of the connecting rod 10 is connected with a locking tooth ring 11, the outer side of the connecting stop ring 9 is connected with an adjusting sleeve 12, and the inside of the clamping seat 13 is arranged above the reinforcing baffle 15 and provided with a positioning tooth disc 14. The guide rod 7 plays a cooperative guiding role for the connecting stop ring 9, the connecting stop ring 9 is connected with the locking tooth ring 11, can play a one-way rotating adjusting role for the clamping seat 13 connected with the positioning tooth disc 14, and the adjusting sleeve 12 is an effect of adjusting and controlling the position of the locking tooth ring 11.

[0027] Further, the tooth surface of the positioning tooth disc 14 is meshed with the locking tooth ring 11, the surface of the connecting sleeve 5 is provided with a limiting groove 6, and the adjusting sleeve 12 is slidably connected to the surface of the connecting sleeve 5 through the limiting groove 6. The surface of the guide rod 7 is sleeved with an anti-loosening spring 8, and the bottom end of the anti-loosening spring 8 is connected to the top of the connecting block ring 9. By separating the locking tooth ring 11 from the positioning tooth disc 14, the reverse rotation of the clamping seat 13 can be controlled, which is similar to the principle of the ratchet and pawl, and the anti-loosening spring 8 acts on the connecting block ring 9, so that the locking tooth ring 11 keeps clamping the positioning tooth disc 14, thereby improving the stability of the structure.

[0028] When assembling, the drill bit is arranged at the bottom of the inner cavity of the clamping seat 13, and the clamping seat 13 is rotated, so that the clamping seat 13 is rotated by cooperating with the assembly clamping groove 3 through the limiting ring 17, so that the driven bevel gear 19 at the end of the lead screw 18 cooperates with the transmission bevel gear 4, thereby rotating, so that the clamping jaw 20 on the surface of the lead screw 18 can cooperate with the drill bit of different sizes to fix, thereby the drill bit can be quickly assembled; when disassembling and replacing, the connecting block ring 9 is moved by the adjusting sleeve 12 upwards, so that the connecting block ring 9 cooperates with the guide rod 7 to move, the locking tooth ring 11 is separated from the positioning tooth disc 14, the rotation restriction of the clamping seat 13 is released, thereby the clamping seat 13 can be reversely rotated, so that the clamping jaw 20 releases the assembled drill bit, thereby further improving the efficiency of disassembling and assembling the drill bit, and improving the effect of using the equipment.

[0029] Although the embodiments of the utility model 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 these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A drill chuck for a numerically controlled machine tool, characterized by, Include: The assembly shaft (1), the bottom end of the assembly shaft (1) is provided with an assembly table (2), the bottom of the assembly table (2) is provided with a transmission bevel gear (4), the surface of the assembly table (2) is rotatably connected with a clamping seat (13), the inside of the clamping seat (13) is connected with a reinforcing partition (15), the surface of the reinforcing partition (15) is provided with a clamping assembly for quick assembly of drill bits of different sizes, the driven bevel gear (19) of the clamping assembly is meshingly connected with the transmission bevel gear (4); The connecting sleeve (5) is connected to the surface of the assembly shaft (1), the inside of the connecting sleeve (5) is provided with a guide rod (7), the surface of the guide rod (7) is provided with a locking mechanism for preventing the clamping seat (13) from being disengaged and positioned.

2. A drill chuck for a numerically controlled machine tool according to claim 1, characterized in that: The clamping assembly comprises: The mounting cylinder (16) connected to the top of the reinforcing partition (15), and The lead screw (18) rotatably mounted on the surface of the mounting cylinder (16); Wherein, the driven bevel gear (19) is movably mounted on the end of the lead screw (18), the surface of the lead screw (18) is movably connected with a clamping jaw (20).

3. A drill chuck for a numerically controlled machine tool according to claim 2, characterized in that: The surface of the reinforcing partition (15) is provided with a moving sliding groove (21), the clamping jaw (20) is arranged below the reinforcing partition (15) through the moving sliding groove (21), and the two sides of the clamping jaw (20) are slidably connected with the inner wall of the moving sliding groove (21).

4. A drill chuck for a numerically controlled machine tool according to claim 3, characterized in that: The top surface of the mounting cylinder (16) is connected with a limiting ring (17), the inner wall of the assembly table (2) is provided with an assembly clamping groove (3), and the surface of the limiting ring (17) is rotatably connected with the inner wall of the assembly clamping groove (3).

5. The drill chuck for a numerically controlled machine tool according to claim 1, characterized in that: The locking mechanism comprises: The connecting stop ring (9) is slidably connected to the surface of the guide rod (7), and The connecting rod (10) is connected to the bottom end of the connecting stop ring (9); Wherein, the bottom end of the connecting rod (10) is connected with a locking tooth ring (11), the outer side of the connecting stop ring (9) is connected with an adjusting sleeve (12), and the inside of the clamping seat (13) is arranged above the reinforcing partition (15) and provided with a positioning tooth disc (14).

6. A drill chuck for a numerically controlled machine tool according to claim 5, characterized in that: The tooth surface of the positioning tooth disc (14) is meshingly arranged with the locking tooth ring (11), the surface of the connecting sleeve (5) is provided with a limiting groove (6), and the adjusting sleeve (12) is slidably connected to the surface of the connecting sleeve (5) through the limiting groove (6).

7. A drill chuck for a numerically controlled machine tool according to claim 6, characterized in that: The surface of the guide rod (7) is provided with an anti-loosening spring (8), and the bottom end of the anti-loosening spring (8) is connected to the top of the connecting stop ring (9).

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