CN217344484U

CN217344484U - Numerical milling machine adds a tooth top anchor clamps

Info

Publication number: CN217344484U
Application number: CN202221200222.4U
Authority: CN
Inventors: 刘佳; 于竹; 杨五兵
Original assignee: AVIC Sac Commercial Aircraft Co Ltd
Current assignee: AVIC Sac Commercial Aircraft Co Ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-09-02
Anticipated expiration: 2032-05-18

Abstract

The utility model belongs to aircraft adds numerically controlled fraise machine processing field, concretely relates to numerical control mills machine adds a tooth top anchor clamps. The fixture comprises a fixture groove tooth-shaped top block, an L-shaped positioning block, an inner hexagonal socket head cap screw, a screw rod and a nut. The utility model discloses optimize numerical control machining anchor clamps structure and contact mode, reduce woollen size surplus, reduce the woollen cost. Meanwhile, the restriction force in the horizontal direction and the vertical direction is increased, the restriction force and the stability are increased, the wool cost and the complexity of cutter path programming are effectively reduced, the efficiency is improved, the waste is reduced, and the manufacturing cost is reduced.

Description

Numerical milling machine adds a tooth top anchor clamps

Technical Field

The utility model belongs to aircraft adds numerically controlled fraise machine processing field, concretely relates to numerical control mills machine adds a tooth top anchor clamps.

Background

At present, in the aviation manufacturing industry, the numerical control milling and machining machine is mainly used for machining parts, the parts are large in quantity, complex in size and large in area, and the numerical control clamping in the aviation industry is usually realized by adopting a universal pressing plate for clamping, so that the freedom degree in the vertical direction is fixed, and meanwhile, the freedom degree in the horizontal direction is limited by using friction force. When the degree of freedom of restriction vertical direction, the top surface edge of the wool is pushed down to anchor clamps, and the regional collision for avoiding of outer forcing plate, the wool machining allowance is a lot of than part overall dimension greatly, makes the wool size far away from part overall dimension, and some parts are even one time big, and the residual material can't utilize in addition, and extravagant serious.

When the universal pressing plate is used for clamping, the friction force of the pressing plate is utilized to ensure that the horizontal direction cannot move, the limiting force is slightly insufficient, if the horizontal clamping force is increased, the tool is complicated, and repeated positioning is generated. The clamping position is increased, programming and processing time is prolonged, and the defects of the two methods in practical production application are overcome.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses can reduce the woollen surplus, increase level and vertical direction's confining force, effectively reduce the complexity of woollen cost and sword way programming, it is extravagant to reduce when raising the efficiency, reduces manufacturing cost.

In order to realize the purpose, the technical scheme is as follows:

the utility model provides a numerical milling machine adds a tooth top anchor clamps, includes anchor clamps recess profile of tooth kicking block 1, L type locating piece 2, hexagon socket head cap screw 3, screw rod 4, nut 5.

The L-shaped positioning block 2 is fixed on a numerical control milling machine processing platform through a screw rod 4 and a nut 5; the groove tooth-shaped top block 1 is arranged on a boss of the L-shaped positioning block 2; the socket head cap screws 3 sequentially penetrate through the groove tooth-shaped jacking blocks 1 and the L-shaped positioning blocks 2, and the groove tooth-shaped jacking blocks 1 are moved to the blanks 6 by rotating the socket head cap screws 3, so that a clamping effect is achieved.

Preferably, the end face of the groove tooth-shaped top block 1 is a tooth-shaped face, the lower end of the groove tooth-shaped top block is provided with a groove which is matched with the L-shaped positioning block 2, and the blank 6 is pressed tightly by the tightening force of the socket head cap screw 3.

Preferably, the L-shaped positioning block 2 is provided with an L-shaped supporting body with a 15-degree boss, the L-shaped supporting body is fixed on a platform of the numerical control milling machine through a screw rod 4 and a nut 5, and the groove tooth-shaped jacking block 1 plays a clamping role through the tightening force of the socket head cap head screw 3.

Preferably, the action surfaces of the groove tooth-shaped top block 1 and the L-shaped positioning block 2 form an angle of 15 degrees with the vertical surface, so that the clamping force is maximized, and the clamping is convenient and quick.

Preferably, the outer slope of the groove tooth type top block 1 is parallel to the groove bottom surface.

The utility model discloses optimize numerical control machining anchor clamps structure and contact mode, reduce woollen size surplus, reduce the woollen cost. Meanwhile, the restriction force in the horizontal direction and the vertical direction is increased, the restriction force and the stability are increased, the cost of the wool and the complexity of tool path programming are effectively reduced, the efficiency is improved, the waste is reduced, and the manufacturing cost is reduced.

Drawings

Fig. 1 is an isometric view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a plan view of the present invention.

Fig. 4 is a side view of the present invention.

Fig. 5 is a schematic view of the clamping of the present invention.

In the figure: 1, a groove tooth-shaped top block; 2L-shaped positioning blocks; 3, a hexagon socket head cap screw; 4, a screw rod; 5, a nut; 6 wool.

Detailed Description

The following describes the embodiments of the present invention in detail with reference to the accompanying drawings and technical solutions.

Example 1

A digital milling machine machining addendum clamp, as shown in fig. 1-5, comprising: the device comprises a groove tooth-shaped top block 1, an L-shaped positioning block 2, an inner hexagonal socket head cap screw 3, a screw rod 4, a nut 5 and wool 6. Two L-shaped positioning blocks 2 are fixed in a T-shaped groove of the parallel table top through a screw rod 4 and a nut 5; the groove of the groove tooth-shaped top block 1 is matched and installed with the short boss of the L-shaped positioning block 2, and the adjusting holes are concentric; the groove tooth-shaped ejecting block 1 and the L-shaped positioning block 2 are connected and not screwed tightly through the inner hexagonal socket head cap screw 3, so that the inner surface of the groove tooth-shaped side of the groove tooth-shaped ejecting block 1 is contacted with the attaching surface of the L-shaped positioning block 2; installing the blanks 6 to enable the side surfaces to be in contact with the tooth surfaces of the clamps; installing two integral clamps on the other side of the wool 7 in the same way, and enabling the tooth surfaces of the clamps to be in contact with the end surface of the wool 6; and screwing the inner hexagonal socket head cap head screw 3 to fix the wool 6.

The groove tooth type top block 1 has the overall dimension of 135x70x60mm, the tooth area of 45x60mm, the lower part is provided with a rectangular groove with the width of 40mm, the other end of the tooth surface is provided with a phi 12 precision hole (not limited to 12mm), and the bevel angle is 15 degrees relative to the horizontal plane or the vertical plane.

L type locating piece 2, overall dimension 150x60x55mm, boss width 35mm, have phi 12 finish (not restricted to 12mm), height and hole and the cooperation of recess tooth type kicking block 1 recess, the bottom plate face has the rectangle through-groove for the installation, thickness 20 mm.

And the inner hexagonal socket head cap screw 3 is used for screwing the groove tooth-shaped jacking block 1.

The groove tooth-shaped top block 1 and the L-shaped positioning block 2 are made of No. 45 cast steel and have the hardness of more than 35 HRC.

The specifications of the inner hexagon socket head cap screw 3 and the screw rod 4 are M12-M16 standard screw rods, and the nut 5 is matched with the standard screw rods.

Claims

1. The utility model provides a numerical milling machine adds a top anchor clamps which characterized in that includes: the device comprises a groove tooth-shaped jacking block (1), an L-shaped positioning block (2), an inner hexagonal cylindrical head screw (3), a screw rod (4) and a nut (5);

the L-shaped positioning block (2) is provided with a threaded hole and a screw rod pressure groove and is fixed on a numerical control milling machine processing platform through a screw rod (4) and a nut (5);

the groove of the groove tooth-shaped ejector block (1) is matched with the boss of the L-shaped positioning block (2), and the tooth-shaped surface of the groove tooth-shaped ejector block (1) abuts against the side surface of the wool (6);

the inner hexagonal socket head cap screw (3) sequentially penetrates through the groove tooth-shaped jacking block (1) and the L-shaped positioning block (2), and the groove tooth-shaped jacking block (1) is moved by a screwing force to tightly press the wool (6);

the L-shaped positioning block (2) is fixed through a screw (4) and a nut (5); the groove tooth-shaped top block (1) is arranged on a boss of the L-shaped positioning block (2); the inner hexagonal socket head cap screw (3) sequentially penetrates through the groove tooth-shaped ejector block (1) and the L-shaped positioning block (2), and the groove tooth-shaped ejector block (1) moves to the blank (6) by rotating the inner hexagonal socket head cap screw (3), so that a clamping effect is achieved.

2. The numerical milling machine addendum clamp according to claim 1, wherein the lower end surface of the concave-tooth-shaped top block (1) is provided with a concave groove to be matched with the L-shaped positioning block (2); the upper end surface is a tooth profile, the other side of the tooth profile is provided with a through hole, and the wool (6) is compressed by the tightening force of the hexagon socket head cap screw (3).

3. The numerical milling machine addendum clamp according to claim 1, wherein the L-shaped positioning block (2) is an L-shaped support body with a 15-degree protrusion, and the concave-groove toothed ejector block (1) is moved to perform a clamping function through the tightening force of the socket head cap screw (3).

4. The numerical milling machine machining tooth crest clamp according to claim 1, wherein the action surfaces of the groove tooth type top block (1) and the L-shaped positioning block (2) form an angle of 15 degrees with a vertical plane, so that clamping is convenient and fast while clamping force is maximized.