Chuck for machining hexagon nut through lathe

Abstract

The chuck comprises a machine base, a top base is connected to the top of the machine base, a machining table is connected to the center of the top of the top base, three sets of openings are annularly formed in the surface of the top base, moving plates are connected into the openings in a sliding mode, and the bottoms of the moving plates penetrate through the openings in a sliding mode and then extend into the top base. A chuck assembly is arranged in the machining table and comprises a bevel gear and a motor, three sets of lead screws are arranged and rotationally connected into the top base through bearings, and the chuck drives three sets of clamping blocks to clamp a hexagon nut through transmission structures such as a bevel gear ring and the lead screws. When the hexagon nut made of materials with high hardness is subjected to drilling, tapping rough machining and other operations needing large cutting force, three angles of the hexagon nut are clamped and fixed through the three sets of clamping blocks in the machining table, and therefore the stability of the hexagon nut in the machining process is greatly improved, the nut can be effectively prevented from moving, and the machining efficiency of the hexagon nut is improved. And the machining precision and stability are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hexagon nut machining technical field, concretely relates to a chuck for lathe machining hexagon nut. BACKGROUND

[0002] When the lathe is used to perform turning, drilling and tapping operations on the hexagon nut, the hexagon nut needs to be firmly fixed in the lathe machining process by the chuck to avoid displacement of the nut when the cutter of the lathe exerts a cutting force on the nut.

[0003] The existing chuck for hexagon nut machining generally uses a spring chuck to clamp the hexagon nut. When the hexagon nut is placed in the center of the spring chuck, the clamping blocks are expanded outward, and the spring is compressed in this process. The elastic reaction force of the spring causes the clamping jaws to contract toward the center, thereby tightly clamping the nut. However, the clamping force of the spring chuck mainly relies on the elasticity of the spring to provide the clamping force, and the clamping force of the clamping blocks is relatively low. For some machining operations that require a large cutting force, such as drilling and tapping rough machining of hexagon nuts made of high-hardness materials, the spring chuck cannot provide a strong enough clamping force, which causes the hexagon nut to displace during machining, thereby affecting the precision and stability of the machining. SUMMARY

[0004] The utility model aims at providing a chuck for lathe machining hexagon nut to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a chuck for lathe machining hexagon nut, comprising:

[0006] A machine base is provided at the top of which a top seat is connected. A machining table is connected to the top center of the top seat. Three openings are formed in the surface of the top seat in a ring shape. A moving plate is slidably connected in the openings, and the moving plate extends into the top seat after sliding through the openings. A chuck assembly for clamping the hexagon nut is provided in the machining table. The cone gear ring of the chuck assembly is rotated to drive the surface transmission connection of the lead screw, so that the rotating lead screw drives the push rod connected to one end of the moving plate to push the clamping blocks close to each other to clamp the hexagon nut.

[0007] Preferably, the chuck assembly includes a bevel gear and a motor. Three groups of lead screws are rotatably connected in the top seat through bearings. The other end of the lead screw is rotatably connected to the bevel gear after penetrating through the support, and the bevel gear is engaged with the cone gear ring. One end of the moving plate in the top seat is transmissionally connected to the surface of the lead screw through the lead screw nut.

[0008] Preferably, one end of the push rod is movably penetrated through the machining table and connected with the clamping block, and both ends of the clamping block are connected with guide rods, and the other end of the guide rod is movably penetrated through the machining table.

[0009] Preferably, the clamping groove on the surface of the clamping block is provided with a protective pad.

[0010] Preferably, the bevel gear is rotatably connected to the top seat through a bearing, the motor is arranged in the base, and the output shaft of the motor is rotatably penetrated through the base and connected with the bevel gear.

[0011] Preferably, three groups of sliding grooves are arranged in the top seat, and the bottoms of the three groups of moving plates are slidably connected to the three groups of sliding grooves through sliding members.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] (1) The clamping head adopts a transmission structure of bevel gear and screw rod to drive three groups of clamping blocks to clamp the hexagon nut, when drilling, tapping and other operations requiring large cutting force are performed on the hexagon nut made of high-hardness material, three angles of the hexagon nut are clamped and fixed by the three groups of clamping blocks in the machining table, thereby greatly improving the stability of the hexagon nut during machining, effectively preventing displacement of the nut, and ensuring machining precision and stability.

[0014] (2) The clamping groove on the surface of the clamping block is provided with a protective pad, which can avoid direct contact between the clamping block and the surface of the nut during clamping of the hexagon nut, prevent the surface of the nut from being scratched or indented, and ensure the appearance quality and performance of the nut. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is a structural schematic view of the utility model;

[0017] Figure 3 It is a top view of the top seat of the utility model;

[0018] Figure 4 It is a structural schematic view of the engagement of the bevel gear and the bevel gear.

[0019] In the drawing: 1, base; 2, top seat; 3, machining table; 4, opening; 5, moving plate; 6, bevel gear; 7, screw rod; 8, push rod; 9, clamping block; 10, bevel gear; 11, motor; 12, guide rod; 13, clamping groove; 14, protective pad; 15, sliding groove; 16, sliding member; 17, light rod; 18, bearing; 19, support. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0021] The utility model provides a kind of chuck for lathe processing hexagon nut, including: Figures 1-4

[0022] Machine base 1, the top of the machine base 1 is connected with top seat 2, the top center of the top seat 2 is connected with processing table 3, the surface of the top seat 2 is annularly provided with three groups of openings 4, the moving plate 5 is slidably connected in the opening 4, and the bottom of the moving plate 5 extends into the top seat 2 after sliding through the opening 4, the processing table 3 is provided with a chuck assembly for clamping the hexagon nut, the cone gear ring 6 of the chuck assembly is rotated and drives the rotation of the lead screw 7 connected on the surface, so that the rotating lead screw 7 drives the push rod 8 connected at one end of the plurality of moving plates 5 to push the clamping block 9 to approach each other to clamp the hexagon nut.

[0023] The chuck assembly includes bevel gear 10, motor 11, the lead screw 7 is provided with three groups, and the three groups of lead screws 7 are rotatably connected in the top seat 2 through bearings 18, the other end of the lead screw 7 is rotatably penetrated through the support 19 and connected with the bevel gear 10, and the bevel gear 10 is engaged with the cone gear ring 6, one end of the moving plate 5 is located in the top seat 2, and the moving plate 5 is sleeved on the lead screw nut of the lead screw 7, so that when the lead screw 7 rotates, the lead screw nut drives the moving plate 5 to move on the lead screw 7.

[0024] One end of the push rod 8 is movably penetrated through the processing table 3 and connected with the clamping block 9, the clamping block 9 is connected with the guide rod 12 at both ends, and the other end of the guide rod 12 is movably penetrated through the processing table 3, the guide rod 12 plays a guiding role, and limits the clamping block 9 to only do linear motion in the direction perpendicular to the surface of the processing table 3, to prevent the clamping block 9 from tilting and deviating during movement.

[0025] The protection pad 14 is arranged in the clamping groove 13 on the surface of the clamping block 9, the protection pad 14 is made of rubber material, and the rubber material protection pad 14 can protect the surface of the hexagon nut when the clamping block 9 contacts the surface of the hexagon nut, to avoid scratching or indentation.

[0026] The cone gear ring 6 is rotatably connected in the top seat 2 through a bearing, the motor 11 is arranged in the machine base 1, and the output shaft of the motor 11 is rotatably penetrated through the machine base 1 and connected with the cone gear ring 6.

[0027] ​The top base 2 is provided with three sets of sliding grooves 15, and the bottom of the three sets of moving plates 5 is respectively slidably connected to the three sets of sliding grooves 15 through sliding members 16, when the moving plate 5 moves, the sliding member 16 can only slide in the direction of the sliding groove 15 in the sliding groove 15, which ensures the linear motion of the moving plate 5 and prevents it from deviating or shaking during movement.

[0028] The utility model discloses, motor 11 preferably step motor, ensure convenient control clamping block 9 moving distance thereby control clamping force, screw rod 7 preferably C1 grade ball screw. The size, direction of three screw rod's thread trace select according to actual processing situation, can keep three screw rod can synchronous steady drive clamping block 9 clamping or loosening can.

[0029] The chuck for machining hexagonal nut of lathe, through the hexagonal nut that needs processing is placed between three sets of clamping blocks 9, and the motor 11 is started, the output shaft of motor 11 drives bevel gear 6 rotation, bevel gear 6 and three sets of screw rod 7 one end connected bevel gear 10 are engaged with, to drive three sets of screw rod 7 synchronous rotation, and because the one end of moving plate 5 in top base 2 is through screw rod 7 nut and screw rod 7 transmission connection, when screw rod 7 rotates, moving plate 5 will along the axial motion of screw rod 7, make moving plate 5 slide in the opening 4 of top base 2, in order to guarantee the stability of moving of moving plate 5, the light rod 17 that passes through moving plate 5 is installed in opening 4, the light rod 17 surface smooth sliding friction small has the guiding effect, and in the bottom of moving plate 5, sliding member 16 is smoothly slid in sliding groove 15, guarantee the accuracy and stability of motion direction, sliding member 16 is like gyro wheel or surface smooth slider, and the one end of moving plate 5 connected push rod 8 is synchronous with the movement of moving plate 5, and push rod 8 pushes clamping block 9 to the center direction of processing table 3, and the guiding rod 12 connected to both ends of clamping block 9 slides in processing table 3, plays a guiding role, ensures the linear motion of clamping block 9, so that clamping block 9 can accurately clamp hexagonal nut in clamping groove 13, so that the clamping groove 13 on the surface of clamping block 9 is tightly fitted with the six sides of hexagonal nut, under the joint action of three sets of clamping blocks 9, firmly clamp hexagonal nut in the center position of processing table 3, can carry out subsequent cutting (or fine grinding etc.) processing;

[0030] And when the hexagonal nut is processed, the motor 11 is reversed, drives bevel gear 6 reverse rotation, in turn makes screw rod 7 reverse rotation, moving plate 5 is reversed under the action of screw rod 7, and push rod 8 drives clamping block 9 to move outward, loosens the clamping of hexagonal nut, at this moment, the processed hexagonal nut can be taken off from processing table 3, and the above steps are repeated to process the next hexagonal nut.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A chuck for turning hexagonal nuts, characterized in that, Include: Base (1), the top of the base (1) is connected with the top seat (2), the top center of the top seat (2) is connected with the processing table (3), the surface of the top seat (2) is annularly opened with three groups of openings (4), the moving plate (5) is slidably connected in the opening (4), and the moving plate (5) bottom extends into the top seat (2) after sliding through the opening (4), the processing table (3) is provided with a chuck assembly for clamping hexagonal nut, the bevel gear ring (6) of the chuck assembly is rotated and drives the surface transmission connection of the lead screw (7) to rotate, so that the rotating lead screw (7) drives the push rod (8) connected with the one end of the moving plate (5) to push the clamping block (9) to each other to clamp the hexagonal nut.

2. The chuck for machining hexagonal nuts of claim 1, wherein: The chuck assembly includes bevel gear (10), motor (11), the lead screw (7) is provided with three groups, and the three groups of lead screws (7) are rotatably connected in the top seat (2) through bearings, the other end of the lead screw (7) is rotatably connected with the bevel gear (10) after penetrating the support, and the bevel gear (10) is engaged with the bevel gear ring (6), one end of the moving plate (5) in the top seat (2) is drivingly connected to the surface of the lead screw (7) through the lead screw nut.

3. The chuck as claimed in claim 1, wherein: One end of the push rod (8) is movably penetrated into the processing table (3) and connected with the clamping block (9), both ends of the clamping block (9) are connected with the guide rod (12), and the other end of the guide rod (12) is movably penetrated into the processing table (3).

4. The chuck as set forth in claim 1, wherein: The clamping groove (13) on the surface of the clamping block (9) is provided with a protective pad (14).

5. The chuck as claimed in claim 2, wherein: The bevel gear ring (6) is rotatably connected in the top seat (2) through bearings, the motor (11) is arranged in the base (1), and the output shaft of the motor (11) is rotatably connected with the bevel gear ring (6) after penetrating the base (1).

6. The chuck as set forth in claim 1, wherein: Three groups of sliding grooves (15) are arranged in the top seat (2), and the bottoms of the three groups of moving plates (5) are slidably connected in the three groups of sliding grooves (15) through sliding members (16).

Images