CN116197695A - Part clamp and porous finish machining method thereof - Google Patents

Abstract

The invention provides a part fixture and a porous finishing method thereof, which relate to the technical field of fixture processing. The part fixture and its porous finishing method include a fixture main body, the front end surface of the fixture main body is fixedly provided with lugs near the lower side, a plurality of opening grooves are equally spaced on the front end surface of the fixture main body, and the front end surface of the fixture main body Both sides of the surface near the lower end are fixedly provided with inclined fixed blocks. Through the combination of various processing modes, it is beneficial for the operator to carry out different forms of processing for different parts, to ensure the accuracy of the processing of each position of the fixture, to improve the use effect of the fixture after processing, and to combine the process of grinding machine processing and NC processing It is subdivided into rough machining and finishing machining. During the rough machining process, there is enough margin on the machined surface until the finish machining is completed and the margin is removed. This machining method is conducive to improving the overall machining accuracy of the fixture and improving the machining effect.

Description

Part fixture and porous finishing method thereof

technical field

The invention relates to the technical field of fixture processing, in particular to a part fixture and a porous finishing method thereof.

Background technique

As we all know, forming by lathe is a common way of fixture production. In vertical fixture processing, the workpiece is generally fixed and the tool is rotated to complete the machining of the rotary hole. The holes of the space porous parts have many hole systems, and the axes of each hole system are different. To form a space angle in parallel, to process each group of hole systems of such space porous parts, lathe processing and vertical machining center processing are required, and different positioning datums and different parts clamping methods are used together. In the automated production process, the robot The clamping position is also different, and it is generally more difficult to process such parts.

Most of the existing parts and fixtures are directly processed by one-time cutting, and it is difficult to accurately grasp the machining accuracy. At the same time, the processing of parts and fixtures requires users to have certain experience to ensure the accuracy. Usually, machine tools are used for slotting processing, and the processing method is single during processing, and the overall accuracy is difficult to be effectively guaranteed.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides a part fixture and its porous finishing method, which solves the problems that the existing fixture is inconvenient to process, the overall machining accuracy is not high, and the overall practicability is not strong, and solves the problem of The existing processing method has poor precision and the effect of the finished product is not good.

(2) Technical solutions

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a part fixture, including a fixture main body, the front end surface of the fixture main body is fixedly provided with lugs on the lower side, and the front end surface of the fixture main body is equally spaced. There are two open slots, both sides of the front end of the clamp main body are fixed with inclined fixing blocks at the lower end, and the front and rear sides of the clamp main body and the plurality of inclined fixing blocks are provided with a plurality of side screw holes. A plurality of fixing screw holes are provided on both sides of the front end surface of the fixture body, and a No. 1 back screw hole is provided on both sides of the rear end surface of the fixture main body near the front side. A plurality of No. 2 back screw holes are provided near the edge, and a plurality of countersunk holes are provided on the front faces of the plurality of inclined fixed blocks, and the front faces of the plurality of inclined fixed blocks are close to the plurality of countersunk holes. Precision threading holes are provided between the head holes, top screw holes are provided on the upper end surface of the clamp body near the four corners, and a plurality of fine holes are provided on the upper end surface of the clamp main body near the middle position;

Preferably, a plurality of said No. 2 rear screw holes are connected to counterbore holes respectively.

Preferably, the lower ends of the lugs and the clamp body are fixedly provided with a wedge-shaped reinforcing backing.

A porous finishing method for a part fixture, specifically comprising the following steps:

S1.YWC Rough Machining

After the fine board is returned to the factory, the number is grasped according to the 2D drawing, the fast wire is added to the back of the main body of the fixture, and the plus or minus 0.1 is processed in place;

S2. Milling machine processing

The milling machine processes the No. 1 back screw hole and the No. 2 back screw hole, and the lug is processed in place by the milling machine with a flat head drill;

S3.NC Rough Machining

According to the number of 2D drawings, process the shape of the back, process the shape of one side, and open the side screw holes, and process the shape of the other side, and open the side screw holes in turn;

S4.M front finishing

Process multiple countersunk holes on the front face of the inclined fixed block, and open multiple fine hole threading holes;

S5.YWC front processing

According to the number of grasps on the 2D drawing, the front end of the fixture main body is processed by fast wire through the grinder, and the front end of the fixture main body is left with 0.2mm/s;

S6.NC refinishing

Place the workpiece horizontally, process multiple inclined surfaces up and down, and use it to process the gripping edge and tool setting reference of the main body of the fixture and the inclined fixed block, fix the workpiece in the fixture on the machine tool, and process the precision opening groove, and process the front end of the main body of the fixture Fix the screw holes and fine holes on the surface, then fix the workpiece through the vise, correct the processing tooling, and process the fine holes and screw holes on the top surface of the fixture main body;

S7. Grinder rough machining

The four sides of the main body of the fixture are preliminarily processed by a grinding machine, so that the overall shape of the main body of the fixture is visible;

S8. Grinder finishing

Use the grinding machine to remove the deformation on the four sides of the main body of the fixture, process the chamfer, finish the front and back sides in place, and process the other positions in place according to the tolerance of the drawing.

Preferably, in the S1, the fine size is left at 0.2 mm/s during processing.

Preferably, in said S1, the processing waste is brought back to be used as a fixture.

Preferably, the NC machining is numerically controlled machine tool machining, and the EDM machining is electric discharge machining.

(3) Beneficial effects

The invention provides a part fixture and a porous finishing method thereof. Has the following beneficial effects:

1. The present invention provides a part fixture and its porous finishing method. Compared with the existing part fixture processing method, the processing method adopts the combination of NC processing and grinding machine processing in the processing process, and cooperates with NC reprocessing. Finishing, a variety of processing modes are interspersed and combined, which is conducive to the operator to carry out different forms of processing for different parts, to ensure the processing accuracy of each position of the fixture, and to improve the use effect of the fixture after processing.

2. The present invention provides a part fixture and its porous finishing method. Compared with the existing part fixture processing method, the processing method subdivides the process of grinding machine processing and NC processing when processing the part fixture For rough machining and finish machining, enough margin is left on the machined surface during the rough machining process, and the margin is removed until the finishing machining is completed. This machining method is conducive to improving the overall machining accuracy of the fixture and improving the machining effect.

Description of drawings

Fig. 1 is a side view axonometric schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the axis side of the rear view angle of the present invention;

Fig. 3 is a schematic diagram of the multi-view axis of the present invention;

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

Among them, 1. Fixture main body; 2. Inverted fixed block; 3. Countersunk hole; 4. Wedge-shaped reinforced backing; 5. Precision threading hole; 6. Support lug; 7. Fixing screw hole; 9. Fine holes; 10. Top screw holes; 11. Side screw holes; 12. No. 1 back screw holes; 13. No. 2 back screw holes.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example:

As shown in Figures 1-4, the embodiment of the present invention provides a fixture for parts, including a fixture main body 1, the front end of the fixture main body 1 is fixedly provided with a lug 6 on the lower side for clamping the workpiece, and the front end of the fixture main body 1 There are a plurality of opening slots 8 at equal intervals on the surface, and inclined fixing blocks 2 are fixedly arranged on both sides of the front end of the fixture main body 1 near the lower end, which is convenient for installing and fixing the fixture. The fixture main body 1 and a plurality of inclined fixing blocks 2 There are multiple side screw holes 11 on the front and back sides, multiple fixing screw holes 7 on both sides of the front end of the fixture body 1, and No. 1 back screws on both sides of the back end of the fixture body 1 near the front. Through holes 12, the rear end faces of multiple inclined fixed blocks 2 are provided with multiple No. 2 rear screw through holes 13 near the edge, and the front faces of multiple inclined fixed blocks 2 are provided with multiple countersunk holes 3, It is convenient to accommodate the positions of the connecting bolts and nuts, ensuring that the front end of the inclined fixed block 2 is flat, and the front ends of multiple inclined fixed blocks 2 are provided with precision threading holes 5 near the positions between the countersunk holes 3, and the clamps The upper end surface of the main body 1 is provided with top screw holes 10 close to the four corners, and the upper end surface of the fixture main body 1 is provided with a plurality of fine holes 9 near the middle position, which has high precision;

A plurality of No. 2 back screw holes 13 are connected to the countersunk holes 3 respectively, and a wedge-shaped reinforcing backing 4 is fixedly arranged on the lower end of the lug 6 and the clamp body 1 .

A porous finishing method for a part fixture, specifically comprising the following steps:

S1.YWC Rough Machining

After the fine board is returned to the factory, the number is grasped according to the 2D drawing, the fast wire is added to the back of the fixture body 1, and the plus or minus 0.1 is processed in place;

S2. Milling machine processing

The milling machine processes the No. 1 back screw hole 12 and the No. 2 back screw hole 13, and the 6 positions of the lugs are processed in place by the milling machine with a flat head drill;

S3.NC Rough Machining

According to the number of 2D drawings, process the shape of the back, process the shape of one side, and open the side screw hole 11, and process the shape of the other side, and open the side screw hole 11 in turn;

S4.M front finishing

Process a plurality of countersunk holes 3 on the front surface of the inclined fixed block 2, and open a plurality of fine hole threading holes 5;

S5.YWC front processing

According to the number of 2D drawings, the front end of the fixture main body 1 is fast wire processed by a grinder, and the front end of the fixture main body 1 is left with 0.2mm/s;

S6.NC refinishing

Place the workpiece horizontally, and process multiple inclined surfaces up and down, which are used to process the gripping edge and tool setting reference of the fixture main body 1 and the inclined fixed block 2, fix the workpiece in the fixture on the machine tool, and process the precision opening groove 8, and process The fixed screw hole 7 and the fine hole on the front end surface of the fixture main body 1, and then the workpiece is fixed by a vise, the processing tool is corrected, and the fine hole 9 and the top screw hole 10 on the top surface of the fixture main body 1 are processed;

S7. Grinder rough machining

The four sides of the main body of the fixture 1 are preliminarily processed by a grinding machine, so that the overall shape of the main body of the fixture 1 is visible and the surface finish is improved;

S8. Grinder finishing

Use a grinding machine to remove deformation on four sides of the main body 1 of the fixture, process chamfers, finish the front and back sides in place, and process other positions in place according to the tolerance of the drawing, so that the appearance of the fixture is more beautiful.

In S1, 0.2mm/s of material is left at the precise size during processing, which is used for finishing machining and is convenient for subsequent processing. In S1, the processing waste is brought back to make fixtures to save materials. NC processing is CNC machine tool processing, and EDM processing is EDM.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. Part fixture, comprising a fixture body (1), characterized in that: the utility model provides a plurality of fixed screw holes (7) have all been seted up to terminal surface before anchor clamps main part (1) near downside position fixing, a plurality of open slots (8) have all been seted up to terminal surface equidistant before anchor clamps main part (1), terminal surface both sides all are fixed to be provided with down-inclined fixed block (2) before anchor clamps main part (1) and a plurality of down-inclined fixed block (2) front and back both sides terminal surface all have been seted up a plurality of side screw holes (11), terminal surface both sides border position all has been seted up a plurality of fixed screw holes (7) before anchor clamps main part (1), terminal surface back terminal surface all has been seted up one number back screw via hole (12) near front side both sides position after anchor clamps main part (1), a plurality of down-inclined fixed block (2) back terminal surface all has been seted up a plurality of No. two back screw via holes (13) near border position, a plurality of down-inclined fixed block (2) front terminal surface all has been seted up a plurality of countersunk head holes (3), terminal surface all has been seted up between terminal surface before anchor clamps main part (2) terminal surface is close to a plurality of countersunk head hole (3), accurate terminal surface (1) is close to terminal surface (1) top surface all has been seted up top surface (10).

2. A method of multi-hole finishing a part holder according to claim 1, wherein: the second back screw through holes (13) are respectively connected with the countersunk holes (3).

3. A method of multi-hole finishing a part holder according to claim 1, wherein: wedge-shaped reinforced backing (4) is fixedly arranged at the lower ends of the lugs (6) and the clamp main body (1).

4. The porous finish machining method for the part clamp is characterized by comprising the following steps of:

s1.ywc roughing

After the fine plate returns to the factory, the back of the clamp main body (1) is processed in place at the position of plus or minus 0.1 according to the number of 2D drawing surfaces;

s2, milling machine processing

Machining a first back screw via hole (12) and a second back screw via hole (13) by a milling machine, and machining the position of the lug (6) in place by using a flat-head drill of the milling machine;

s3.NC roughing

Processing the back surface shape, processing one side surface shape, forming a side surface screw hole (11), processing the other side surface shape and sequentially forming the side surface screw holes (11) according to the number of 2D drawing surfaces;

s4.m front surface finishing

Machining a plurality of counter-inclined fixing blocks (2), a plurality of countersunk holes (3) on the front end surface of the fixing blocks, and penetrating through a plurality of fine hole threading holes (5);

s5.ywc front side machining

According to the number of 2D drawing, the front end face of the clamp main body (1) is subjected to quick wire processing through a grinding machine, and the material remaining on the front end face of the clamp main body (1) is 0.2mm/s;

s6.NC Re-finishing

The method comprises the steps of horizontally placing a workpiece, machining an upper inclined surface and a lower inclined surface, machining a grabbing edge and a tool setting reference of a clamp main body (1) and an inverted inclined fixed block (2), fixing the workpiece in a clamp on a machine tool, machining a precise opening groove (8), machining a fixed screw hole (7) and a precise hole on the front end surface of the clamp main body (1), fixing the workpiece through a vice, correcting a machining tool, and machining the precise hole (9) and a top screw hole (10) on the top surface of the clamp main body (1);

s7, rough machining of grinding machine

Preliminary processing is carried out on four sides of the appearance of the clamp main body (1) through a grinding machine, so that the appearance of the whole clamp main body (1) is visible;

s8, finishing by a grinding machine

And removing deformation on four sides of the appearance of the clamp main body (1) through a grinding machine, machining chamfer angles, finishing the front and back surfaces in place, and machining other positions in place according to drawing tolerance.

5. The method for multi-hole finishing of a part holder according to claim 4, wherein: in the step S1, the material remained at the fine size position during processing is 0.2mm/S.

6. The method for multi-hole finishing of a part holder according to claim 4, wherein: in the step S1, the processing waste is brought back to the clamp.

7. The method for multi-hole finishing of a part holder according to claim 4, wherein: in the step S2, trial cutting is needed before machining, and the precision positioning position degree and the verticality are needed to be detected after machining.

8. The method for multi-hole finishing of a part holder according to claim 4, wherein: the NC machining is numerical control machine tool machining, and the EDM machining is electric spark machining.

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