CN218397000U

CN218397000U - Double-station milling clamp with angle

Info

Publication number: CN218397000U
Application number: CN202221805270.6U
Authority: CN
Inventors: 魏茹; 张春振; 王爱玲
Original assignee: Shenyang Aircraft Industry Group Co Ltd
Current assignee: Shenyang Aircraft Industry Group Co Ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2023-01-31
Anticipated expiration: 2032-07-13

Abstract

The utility model belongs to the technical field of the machining fixture, a take angle duplex position to mill and press from both sides is proposed. The double-station milling clamp with the angle comprises a base, an inclined pin, a positioning pin and a pressing plate; the base comprises two bosses and a stepped shaft structure; the two bosses are respectively a straight boss and an inclined boss; the positioning pin and the taper pin penetrate through a straight hole and a taper hole of the pin shaft part for fixing, and the boss surface and the lower surface of the pin shaft part are positioned, so that all surfaces and shapes of the part are processed. The utility model discloses to assemble anchor clamps originally many sets and integrate into one set of special fixture, it is very convenient to reduce the number of times of preparing and installing the part, guarantee the location accuracy. The processing of two parts is finished by one-time clamping, and the processing tool can be used for simultaneously processing different shapes and upper surfaces of two parts with the pin shaft with angles; the fixture has a simple structure, and can meet the requirement of processing of a common three-axis machine tool; meanwhile, the special tool ensures the uniformity of all products and improves the product quality.

Description

Double-station milling clamp with angle

Technical Field

The utility model relates to a processing anchor clamps technical field especially relates to a take angle duplex position to mill and press from both sides.

Background

The pin shaft part (figure 1) with the angle is a structure which often appears in the aviation field, the part is made of high-strength structural steel, the toughness of the material is high, the cutting is not easy, the appearance profile is complex, and the processing difficulty is high. In the machining process, a plurality of shapes and holes of a part need to be machined, a plurality of sets of clamps are assembled in the conventional machining mode, and a plurality of shapes and holes of a single machined part need to be machined respectively by adopting a conventional milling machine and a drilling machine. Meanwhile, the parts are frequently assembled and disassembled, the preparation time for part clamping and alignment is long, the strength of the part clamped by an operator is high, and the machining efficiency is difficult to improve. Therefore, a tool needs to be designed to realize the processing of the shapes and holes of a plurality of parts, the auxiliary time is reduced, and the processing efficiency and the part processing stability are improved.

In the process of machining the part, the upper surface, the lower surface, the appearance and the hole of the part need to be machined, and a plurality of sets of assembling clamps are adopted in the past machining process. If the processing method is carried out in the part development lot, the following disadvantages are exposed when the parts are produced in the batch mode:

1. the assembly adopts a pressing plate form, and only one part can be clamped for processing each time, so that the assembly is not suitable for processing a large number of parts;

2. the preparation time is long, and the production cycle is delayed;

3. the error of frequently disassembling parts is large, the size of each part is unstable, and the uniformity of products is influenced;

the above phenomena directly cause the phenomena of delayed production cycle of parts, reduced product quality, etc. in the batch production.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: an angle double-station milling clamp is designed, and can be used for simultaneously processing different shapes and upper surfaces of two pin shaft parts with angles.

The utility model provides an above-mentioned technical problem, the technical scheme who adopts is: a double-station milling clamp with angles comprises a base 1, an inclined pin 2, a positioning pin 3, a pressing plate 4, a nut 5, a bolt 6, a washer 7, a bushing 8, a positioning bolt 9, a self-locking nut 10, a self-locking bolt 11 and an adjustable stud 12;

the pin shaft part comprises a big hole and three small holes, wherein the three small holes are a hole A, a hole B and a hole C respectively;

the base 1 comprises two bosses and a stepped shaft structure, wherein the two bosses are respectively a straight boss and an inclined boss and are respectively distributed on two sides of the middle axis of the base 1; the stepped shaft structures are positioned on two sides of the base 1; each boss is provided with an inclined pin 2 and a positioning pin 3 respectively; the angle pin 2 is inserted into the boss through the large hole of the pin shaft part, and the direction of the exposed part of the angle pin is consistent with the direction of the large hole of the pin shaft part; the positioning pin 3 is vertically inserted into the boss through the hole A of the pin shaft part, and the direction of the exposed part of the positioning pin is consistent with the direction of the hole A; each boss is provided with two through holes, the bottom surface of the base 1 corresponding to the through holes is provided with a groove, and two self-locking bolts 11 pass through the holes B and C respectively and then are fixed with self-locking nuts 10 at the grooves through the through holes respectively; two pressing plates 4 are respectively arranged on each boss for pressing the parts; two ends of the pressure plate 4 are respectively connected to the base 1 through a bolt 6 and an adjustable stud 12 in a matched manner with the nut 5; the nut 5 is used for screwing the bolt 6, and a gasket 7 is arranged between the nut 5 and the pressure plate 4;

the left side and the right side of the base 1 are provided with drill holes, the drill holes are provided with bushings 8, and positioning bolts 9 are inserted into grooves of a machine tool through the bushings 8 to play a limiting role; while the bushing 8 and the positioning pin 9 serve as an alignment for the origin of the numerical control program.

One end of each of the two pressing plates 4 is flush with the end part of the boss, the other end of one of the pressing plates 4 is close to the positioning pin 3, and the other end of the other pressing plate 4 is close to the self-locking bolt 11.

The shape of the straight boss is consistent with the shape of the lower surface of the pin shaft part; the inclined boss ensures that the excircle part of the pin shaft part is vertical to the surface of the base 1; the part of the inclined boss installation pressing plate 4 is provided with a depression with the angle horizontally consistent with that of the inclined boss, so that the pressing plate 4 can be horizontally pressed on the upper surface of the pin shaft part.

The utility model has the advantages that: the utility model discloses a will originally the multi-set anchor clamps of assembling integrate into one set of special fixture, it is very convenient to reduce the number of times of preparing and installing the part, guarantee that the location is accurate. The fixture is designed according to the specific characteristics of the pin shaft part, and a straight hole, an inclined hole and the lower surface of the part are used for positioning, so that all surfaces and the shapes of the part are machined. The processing of two parts is finished by one-time clamping, and the processing tool can be used for simultaneously processing different shapes and upper surfaces of two parts with the pin shaft with angles; the fixture has a simple structure, and can meet the requirement of processing of a common three-axis machine tool; meanwhile, the special tool ensures the uniformity of all products and improves the product quality.

Drawings

FIG. 1 is a schematic view of a pin part being machined; (a) is a front view, (b) is an axonometric view;

FIG. 2 is a two-dimensional diagram of an angled double-station milling clamp; (a) is a front view and (b) is a side view; (c) is a top view;

FIG. 3 is a three-dimensional view of an angled double-station milling clamp.

In the figure: 1-base, 2-angle pin, 3-locating pin, 4-pressure plate, 5-nut, 6-bolt, 7-washer, 8-bush, 9-locating bolt, 10-self-locking nut, 11-self-locking bolt, 12-adjustable stud.

Detailed Description

The installation and use method of the double-station milling clamp with the angle comprises the following steps:

step 1, mounting the lower surface of a base 1 on a machine tool, mounting two positioning bolts 9 in grooves of the surface of the machine tool through a lining 8, after the tool is aligned, pressing plates on the machine tool tightly press the left side and the right side of the base 1, and then pulling out the two positioning bolts 9.

And 2, mounting an inclined pin 2 and a positioning pin 3 on the upper surface of a boss on the left side of the base 1. The first part is arranged on the upper surface of the left boss, the inclined hole of the pin shaft part is arranged on the inclined pin 2, the hole A of three small holes of the part is arranged on the positioning pin 3,

step 3, two self-locking bolts 11 penetrate through the grooves on the lower surface of the base 1 from the rest two small holes on the upper surface of the pin shaft part, namely a hole B and a hole C, and self-locking nuts 10 are installed and screwed with the thread parts of the self-locking bolts 11 from the grooves on the lower surface of the base 1;

step 4, a bolt 6 is installed on the base 1, the pressing plate 4 penetrates through the bolt 6 and presses on a part, an adjustable stud 12 is installed at the other end of the pressing plate 4, the adjustable stud 12 is attached to the base 1, and the height of the pressing plate 4 is adjusted by adjusting the thread part of the adjustable stud 12;

and 5, pressing a gasket 7 on the pressure plate 4, installing the nut 5 on the bolt 6, and tightly attaching the lower surface of the nut 5 to the gasket 7. At this point, the first part is installed and the station is used to machine the shape of the part by inverting the platen.

Step 6, repeating the steps 2-5 to install a second part;

step 7, after all parts are installed, compiling a numerical control program, and simultaneously processing the appearance of the left part, the upper surface and the excircle of the right part;

step 8, after the machining is finished, firstly loosening the left nut 5, loosening the pressing plate 4, loosening the self-locking nut 10, and dismounting the self-locking bolt 11, so that the left part is dismounted; the right side part was removed in the same way.

Claims

1. The double-station milling clamp with the angle is characterized by comprising a base (1), an inclined pin (2), a positioning pin (3), a pressing plate (4), a nut (5), a bolt (6), a washer (7), a bushing (8), a positioning bolt (9), a self-locking nut (10), a self-locking bolt (11) and an adjustable stud (12);

the base (1) comprises two bosses and a stepped shaft structure, wherein the two bosses are respectively a straight boss and an inclined boss and are respectively distributed on two sides of the middle axis of the base (1); the stepped shaft structures are positioned on two sides of the base (1); each boss is provided with an oblique pin (2) and a positioning pin (3) respectively; the angle pin (2) is inserted into the boss through the large hole of the pin shaft part in an inclined manner, and the direction of the exposed part of the angle pin is consistent with the direction of the large hole of the pin shaft part; the positioning pin (3) is vertically inserted into the boss through the hole A of the pin shaft part, and the direction of the exposed part of the positioning pin is consistent with the direction of the hole A; each boss is provided with two through holes, the bottom surface of the base (1) corresponding to the through holes is provided with a groove, and two self-locking bolts (11) pass through the holes B and C respectively and then are fixed with self-locking nuts (10) at the positions of the grooves through the through holes respectively; two pressing plates (4) are respectively arranged on each boss for pressing the parts; two ends of the pressure plate (4) are respectively connected to the base (1) through a bolt (6) and an adjustable stud (12) in a matched manner with the nut (5); the nut (5) is used for screwing the bolt (6), and a gasket (7) is arranged between the nut (5) and the pressure plate (4);

drilling holes are formed in the left side and the right side of the base (1), a bushing (8) is installed on each drilling hole, and a positioning bolt (9) is inserted into a groove of a machine tool through the bushing (8) to play a limiting role; meanwhile, the bush (8) and the positioning bolt (9) are used as the alignment of the origin of the numerical control program.

2. The double-station milling clamp with the angle according to claim 1, characterized in that one end of each of the two pressing plates (4) is flush with the end of the boss, the other end of one of the pressing plates (4) is close to the positioning pin (3), and the other end of the other pressing plate (4) is close to the self-locking bolt (11).

3. The double-station milling clamp with the angle according to claim 1 or 2, wherein the shape of the straight boss is consistent with the shape of the lower surface of the pin shaft part; the inclined boss ensures that the outer circle part of the pin shaft part is vertical to the surface of the base (1); the part of the inclined boss installation pressing plate (4) is provided with a recess with the angle horizontally consistent with that of the inclined boss, so that the pressing plate (4) can be horizontally pressed on the upper surface of the pin shaft part.