CN214979471U

CN214979471U - A joint slot milling machine fixture

Info

Publication number: CN214979471U
Application number: CN202120965519.9U
Authority: CN
Inventors: 陈玉文
Original assignee: Changzhou Vocational Institute of Mechatronic Technology
Current assignee: Dalian Qimai Machinery Manufacturing Co ltd; Dragon Totem Technology Hefei Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-12-03
Anticipated expiration: 2031-05-08

Abstract

The utility model relates to the technical field of mechanical processing, in particular to the technical field of clamping tools, and in particular to a joint slot milling machine fixture. A support of a joint slot milling machine fixture is fixed on the upper surface of a box body. The tool setting block is fixed on the box body and connected with the box body. The support and the knife setting block are fixed on the upper surface of the box body. The support is used for the positioning of the workpiece, the positioning pin is a positioning element, which is fixed on the support, and the tool setting block adopts a right-angle tool setting block to ensure the depth of the workpiece slot. The box body and the cylinder are fixed on the upper surface of the base by screws. The slider slides in the dovetail groove of the base. The joint slot milling machine fixture of the utility model has high dimensional accuracy, high surface quality requirements, high requirements for symmetry and verticality for the workpiece slot width of 28H11, and for large production batches of workpieces, pneumatic clamping is adopted. The mechanism simplifies the fixture structure, thereby greatly accelerating the clamping speed and improving the processing efficiency.

Description

Joint notch milling machine fixture

Technical Field

The utility model relates to a machining technical field, in particular to clamping instrument technical field especially relates to a connect notch milling machine anchor clamps.

Background

The joint (hereinafter referred to as a workpiece) has the advantages of high notch width 28H11, high dimensional accuracy, high surface quality requirement, and high requirements on symmetry and perpendicularity. The workpiece clamping speed is low, the machining efficiency is low, the labor intensity of workers is high, and therefore the milling machine clamp suitable for the joint notch is required to be designed.

The utility model discloses a size precision to work piece notch width 28H11 is higher, surface quality requires highly, symmetry and straightness that hangs down requires highly, and work piece production is very big in batches, adopts pneumatic clamping mechanism and tool setting device, has accelerated work piece clamping speed greatly, has improved machining efficiency to realize the comprehensive location of six degrees of freedom.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve among the prior art in connecting notch manufacturing procedure for the clamping speed that the clamping connects the notch is slower, the low technical problem of machining efficiency, and the difficult part picture requirement that reaches of size precision, surface quality and the geometric tolerance of notch, the utility model provides a connect notch milling machine anchor clamps to solve above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is:

a joint notch milling machine fixture comprises a hook-shaped pressing plate, a support, a tool setting block, a positioning pin, a connecting shaft, a cylinder, a positioning key, a shaft pin, a small shaft, a box body, a floating fulcrum shaft, a sliding block, an inclined block, a base, a positioning pin and a stop pin;

the support is fixed on the upper surface of the box body. The feeler block is fixed on the box body and is connected with the box body. The support and the feeler block are fixed on the upper surface of the box body. The support is used for the location of work piece, and the locating pin is the locating element, fixes on the support, and the feeler block adopts right angle feeler block for guarantee the degree of depth of work piece notch. The box body and the cylinder are fixed on the upper surface of the base through screws. The sliding block slides in the dovetail groove of the base, and the sliding block is connected and screwed with the cylinder piston through a connecting shaft, a shaft pin and a nut. The inclined block and the set screw are used for adjusting the side clearance of the dovetail groove of the base. The hook-shaped pressure plate is connected with the floating fulcrum shaft through a small shaft. The hook-shaped pressing plate is used for clamping a workpiece. The floating fulcrum shaft slides along the inner surface of the slider ramp groove. The small shaft slides on the inner surface of the hook-shaped pressure plate groove. The stop pin is used for limiting the degree of freedom of the Z-direction rotation of the workpiece. The locating pin is used for locating the cutter block. The positioning key is fixed on the bottom surface of the base through screws, is connected with a T-shaped groove of a machine tool workbench and is pressed tightly by a pressing plate.

The invention relates to a connector notch milling machine fixture, which adopts a pneumatic clamping mechanism, utilizes a piston rod of an air cylinder to push a sliding block, the sliding block is provided with an inclined plane groove, a floating fulcrum shaft slides along the inner surface of the inclined plane groove of the sliding block, and the floating fulcrum shaft only moves in the vertical direction. When air is fed to the right side of the air cylinder, the piston rod, the piston and the slider move to the leftmost side along the horizontal direction, the floating fulcrum shaft vertically moves downwards to the lowest position of the slider inclined plane groove, the small shaft moves to the highest position of the hook-shaped pressing plate sliding groove, and the two hook-shaped pressing plates simultaneously move downwards to firmly press a workpiece. When air enters from the upper part of the left side of the air cylinder, the piston rod, the piston and the slider move to the rightmost side along the horizontal direction, the floating fulcrum shaft vertically moves upwards to the highest position, the small shaft moves to the lowest position of the hook-shaped pressing plate sliding groove, the two hook-shaped pressing plates move upwards, the workpiece is loosened, and the hook-shaped pressing plates are opened outwards.

The utility model has the advantages that:

(1) a connect notch milling machine fixture, to the size precision of work piece notch width 28H11 higher, the surface quality requires high, the symmetry and hang down straightness and require high, to work piece production batch very big, adopt pneumatic clamping mechanism, simplified the anchor clamps structure to clamping speed has been accelerated greatly, machining efficiency has been improved.

(2) The utility model discloses in locating pin and hole

Clearance fit limiting freedom of movement of the workpiece in direction X, Y, support and cylinder

An end face positioning limiting the freedom of movement of the workpiece in the Z direction and the freedom of rotation in the X, Y direction, stop pins and cylinders

The plane contact of one side of the positioning device limits the degree of freedom of the workpiece rotating along the Z direction, and the full positioning of the workpiece with six degrees of freedom is realized.

(3) The utility model discloses in adopt pneumatic clamping mechanism, utilize the piston rod of cylinder to promote a slider, have an inclined plane groove on this slider, the counter roll that floats slides along slider inclined plane inslot surface, the removal of vertical direction is only made to the counter roll that floats. When air is fed to the right side of the air cylinder, the piston rod, the piston and the slider move to the leftmost side along the horizontal direction, the floating fulcrum shaft vertically moves downwards to the lowest position of the slider inclined plane groove, the small shaft moves to the highest position of the hook-shaped pressing plate sliding groove, and the two hook-shaped pressing plates simultaneously move downwards to firmly press a workpiece. When air enters from the upper part of the left side of the air cylinder, the piston rod, the piston and the slider move to the rightmost side along the horizontal direction, the floating fulcrum shaft vertically moves upwards to the highest position, the small shaft moves to the lowest position of the hook-shaped pressing plate sliding groove, the two hook-shaped pressing plates move upwards, the workpiece is loosened, and the hook-shaped pressing plates are opened outwards.

(4) The utility model discloses in work piece notch degree of depth 40 guarantee by the feeler device, the feeler block adopts right angle feeler block and thickness to be 3's flat clearance gauge.

(5) The utility model discloses in joint notch milling machine fixture, the anchor clamps base is connected with the T-shaped groove of lathe workstation through two rectangle navigation keys to compress tightly with the clamp plate.

Drawings

FIG. 1 is a side view of a joint slot milling fixture.

Figure 2 is a view of a connector slot milling fixture B-B.

Figure 3 is a view of a connector slot milling fixture a-a.

Figure 4 is a view of the joint slot milling fixture D.

Fig. 5 is a set of views of a joint part.

In the figure: 1, hook-shaped pressing plates; 2, a support; 3, aligning the tool block; 4, positioning pins A; 5 connecting the shaft; 6, a nut; 7 air cylinders; 8, a screw A; 9 a positioning key; 10, screw B; 11 shaft pins; 12 small shafts; 13, a box body; 14 a floating fulcrum; 15 sliding blocks; 16, an inclined block; 17 fastening the screw; 18 a base; 19 positioning pin B; 20 stop pin.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in FIG. 1, this patent refers to the field of 'semiconductor devices and electric solid state devices'The adopted milling machine fixture for the joint notch is used for processing the notch with the width of 28H11 and the depth of 40, the workpiece material is 45 steel, the blank is a die forging, and the workpiece is provided with a hole

And (4) processing the other surfaces to meet the drawing requirements except for the processing.

Example 1:

a joint notch milling machine fixture comprises a hook-shaped pressing plate 1, a support 2, an aligning block 3, a positioning pin A4, a connecting shaft 5, a cylinder 7, a positioning key 9, a shaft pin 11, a small shaft 12, a box body 13, a floating fulcrum shaft 14, a slide block 15, an inclined block 16, a base 18, a positioning pin B19 and a stop pin 20;

the support 2 is fixed on the upper surface of the box body 13. The feeler block 3 is fixed on the box body 13 and is connected with the box body 13. The support 2 and the feeler block 3 are fixed on the upper surface of the box body 13. The support 2 is used for positioning a workpiece, the positioning pin A4 is a positioning element and is fixed on the support 2, and the feeler block 3 adopts a right-angle feeler block and is used for ensuring the depth of a notch of the workpiece. The box body 13 and the cylinder 7 are fixed on the upper surface of the base 18 by screws B10. The sliding block 15 slides in a dovetail groove of the base 18, and the sliding block 15 is connected and screwed with the piston of the air cylinder 7 through the connecting shaft 5, the shaft pin 11 and the nut 6. The inclined block 16 and the set screw 17 are used for adjusting the side clearance of the dovetail groove of the base 18. The hook-shaped pressure plate 1 is connected with a floating fulcrum 14 through a small shaft 12. The hook-shaped press plate 1 is used for clamping a workpiece. The floating fulcrum 14 slides along the inner surface of the inclined groove of the slider 15. The small shaft 12 slides on the inner surface of the slot of the hook-shaped press plate 1. The stop pin 20 is used to limit the degree of freedom of the Z-direction rotation of the workpiece. The positioning pin B19 is used for positioning the cutter block. The positioning key 9 is fixed on the bottom surface of the base 18 by a screw A8, is connected with a T-shaped groove of a machine tool workbench and is pressed tightly by a pressure plate.

Example 2:

the joint notch milling machine fixture is high in dimensional accuracy, high in surface quality requirement and high in symmetry and perpendicularity requirement aiming at the notch width 28H11 of a workpiece.

Firstly, positioning and clamping a workpiece and setting a tool.

The fixture is fixed on a workpiece table of the drilling machine. The workpiece being positioned by means of locating pins and holes

The plane contact of one side of the positioning device limits the degree of freedom of the workpiece rotating along the Z direction, and the full positioning of the workpiece with six degrees of freedom is realized. A pneumatic clamping mechanism is adopted, a piston rod of an air cylinder is used for pushing a sliding block, the sliding block is provided with a slope groove, a floating fulcrum shaft slides along the inner surface of the slope groove of the sliding block, and the floating fulcrum shaft only moves in the vertical direction. When air is fed to the right side of the air cylinder, the piston rod, the piston and the slider move to the leftmost side along the horizontal direction, the floating fulcrum shaft vertically moves downwards to the lowest position of the slider inclined plane groove, the small shaft moves to the highest position of the hook-shaped pressing plate sliding groove, and the two hook-shaped pressing plates simultaneously move downwards to firmly press a workpiece. The depth 40 of the notch of the workpiece is ensured by a tool setting device, and the tool setting block adopts a right-angle tool setting block and a flat clearance gauge with the thickness of 3.

In the second step, the notch width 28H11, depth 40 machining is completed.

After the notch is milled, air enters from the upper part of the left side of the air cylinder, when the piston rod, the piston and the slider move to the rightmost side along the horizontal direction, the floating fulcrum shaft vertically moves upwards to the highest position, the small shaft moves to the lowest position of the hook-shaped pressing plate sliding groove, the two hook-shaped pressing plates move upwards, the workpiece is loosened, the hook-shaped pressing plates are opened outwards, the workpiece is taken down, and the next workpiece is replaced.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A joint notch milling machine fixture, characterized in that it comprises a hook-shaped pressure plate (1), a support (2), a tool setting block (3), a positioning pin A (4), a connecting shaft (5), a cylinder ( 7), positioning key (9), shaft pin (11), small shaft (12), box body (13), floating support shaft (14), slider (15), inclined block (16), base (18) and stop pin (20);

The support (2) is fixed on the upper surface of the box body (13), the knife setting block (3) is fixed on the box body (13), and is connected with the box body (13); the support (2), The tool setting block (3) is fixed on the upper surface of the box body (13); the support (2) is used for positioning the workpiece, and the positioning pin A (4) is a positioning element, which is fixed on the support (2), and the tool setting block is used for positioning the workpiece. (3) A right-angle tool setting block is used to ensure the depth of the workpiece slot; the box body (13) and the cylinder (7) are fixed on the upper surface of the base (18) by screws B (10); the slider (13) 15) Slide in the dovetail groove of the base (18), and the slider (15) is connected and tightened by the connecting shaft (5), the shaft pin (11), the nut (6) and the cylinder (7) piston; The set screw (17) is used to adjust the side clearance of the dovetail groove of the base (18); the hook-shaped pressing plate (1) is connected with the floating support shaft (14) through the small shaft (12); the hook-shaped pressing plate (1) is used for clamping tighten the workpiece; the floating support shaft (14) slides along the inner surface of the inclined groove of the slider (15); the small shaft (12) slides on the inner surface of the groove of the hook-shaped pressing plate (1); the stopper pin (20) ) is used to limit the degree of freedom of the rotation of the workpiece in the Z direction; the positioning pin B (19) is used for the positioning of the tool block; the positioning key (9) is fixed on the bottom surface of the base (18), and the T-slot of the machine tool table connected and tightened with a pressure plate.

2 . The fixture for a joint slot milling machine according to claim 1 , wherein the tool setting block ( 3 ) adopts a right-angle tool setting block. 3 .

3. A joint slot milling machine fixture according to claim 1 or 2, wherein the positioning key (9) is fixed on the bottom surface of the base (18) by a screw A (8).