CN204913479U - Milling machine with quadruplex position milling process anchor clamps - Google Patents

Abstract

A milling machine with a four-station milling fixture includes a milling machine body, and a four-station milling fixture is arranged on the workbench of the milling machine body; the four-station milling fixture includes a base plate arranged on the workbench, and the front side of the base plate is vertically provided with The vertical plate, the front side of the vertical plate is connected with the indexing plate through the rotation of the cylindrical pin, the indexing plate is uniformly provided with four positioning holes along the circumferential direction, and the vertical plate is provided with diamond-shaped pins that can be respectively inserted into the four positioning holes , There is a pressing mechanism between the vertical plate and the indexing plate; the front side of the indexing plate is provided with a mounting plate, and the right side of the mounting plate is provided with a mounting stud on the same centerline as the cylindrical pin, and the threaded connection on the mounting stud is a tight There are fixed nuts, and the right side of the mounting plate is provided with positioning mechanisms respectively located above and below the mounting studs. The utility model can complete the processing of multiple processing surfaces only by one clamping, the work efficiency is greatly improved, and the processing accuracy is also guaranteed, and the operation requirements for workers are correspondingly reduced.

Description

Milling machine with four-station milling fixture

technical field

The utility model belongs to the technical field of mechanical processing and manufacturing, in particular to a milling machine with a four-station milling fixture.

Background technique

In the field of mechanical processing, the fixtures used by most milling machines are too single, and only one surface can be processed at a time. When multiple surfaces are processed, multiple clamping is required, which will increase the workload and reduce the Work efficiency and affect machining accuracy require high operating requirements for workers, and ordinary fixtures are very difficult to clamp or inconvenient to process when clamping workpieces with irregular shapes, especially non-circular surfaces. For a bracket part used in the aerospace industry, the blank of the bracket part includes a base body with a cylindrical mechanism and two arc-shaped plates symmetrically arranged on one end of the base body. There are threaded holes, and the substrate after the bracket part is processed is in the shape of a regular prism, but it is difficult to clamp with ordinary fixtures when processing the peripheral surface of the substrate, and the cylindrical substrate is processed into a regular prism structure during processing. Moreover, the precision is very high, and multiple surfaces need to be processed, and the precision will be reduced when multiple clamping is performed, which does not meet the requirements, and the existing fixture cannot meet the processing requirements of this bracket part.

Utility model content

In order to solve the deficiencies of the prior art, the utility model provides a milling machine with four-station milling fixtures, which has a wide range of milling processing, can complete the processing of multiple surfaces in one clamping, improves the processing efficiency and has high processing precision. .

In order to solve the above-mentioned technical problems, the technical scheme adopted by the utility model is as follows: a milling machine with a four-station milling fixture, including a milling machine body, and a four-station milling fixture is arranged on the workbench of the milling machine body, and the four-station milling processing The fixture includes a bottom plate set on the workbench through connecting bolts, a vertical plate is arranged vertically on the front side of the bottom plate, a diagonal brace is set between the upper surface of the bottom plate and the rear surface of the vertical plate, and a circular Indexing plate, four positioning holes are evenly arranged on the indexing plate along the circumferential direction, diamond-shaped pins which can be respectively plugged into the four positioning holes are arranged on the vertical plate, and the rear end of the diamond-shaped pin is provided on the rear side of the vertical plate. There are at least three pressing mechanisms between the vertical plate and the index plate;

The compression mechanism includes a compression plate, a compression pin, a compression bolt and a compression nut. The compression plate is connected to the vertical plate through the compression pin rotation, the compression bolt is set on the vertical plate, and the inner side of the compression plate compresses the front surface of the indexing plate. At the edge of the edge, the compression bolt is set on the vertical plate and is located between the compression pin and the index plate. The compression bolt passes through the pressure plate forward, and the front end of the compression bolt is threaded to press the pressure plate against the index plate. tight nut;

The front side of the indexing plate is fixedly connected with a mounting plate through mounting bolts, and the right side of the mounting plate is provided with a mounting stud on the same center line as the cylindrical pin, and a fastening nut is threaded on the mounting stud, and the circumferential surface of the fastening nut is along the circumferential direction. There is a circle of force grooves evenly in the direction, and the right side of the mounting plate is provided with positioning mechanisms located above and below the mounting studs;

The positioning mechanism includes a connecting plate, a positioning plate, a positioning pin shaft, a positioning bolt and a positioning nut. On the plate, the positioning bolt is parallel to the positioning pin shaft and is located at the front side of the positioning pin shaft, and the positioning nut is threadedly connected to the positioning bolt.

With the above technical scheme, the working process of the utility model is as follows: Screw the threaded hole on the base body of the bracket part blank to the mounting stud, use the dial indicator to find out the position of the two arc-shaped plates, and then use the wrench to operate the positioning nut , moderately compress the two symmetrical arc-shaped plates, and then turn the fastening nut to compress the rear end face of the base body. Due to the narrow space here, use an L-shaped booster rod to insert into the booster groove and then further tighten the fastening nut securely. Position the bracket part blank. After the positioning is completed, turn on the milling machine, rotate the milling cutter, adjust the height of the workbench and then feed. After milling a plane on the circumference of the base body, use a wrench to loosen the compression nut, operate the handle to pull out the diamond pin, turn it 90° clockwise, and then Insert the diamond-shaped pin into the positioning hole on the indexing plate, use a wrench to tighten the compression nut so that the pressure plate presses the indexing plate tightly, and then feed the worktable to perform milling operations on the second plane on the circumference of the base body. After the milling is completed, the above-mentioned action steps are repeated twice until the peripheral surface of the base body is milled into a quadrangular prism shape. Loosen the fastening nut and the positioning nut, remove the bracket part, and then carry out the milling operation of the next bracket part blank.

The indexing plate in the utility model can be rotated on the right side of the vertical plate, and four positioning holes are evenly arranged on the circumference of the indexing plate, and the diamond-shaped bolt passes through the cylindrical hole on the vertical plate and the positioning hole on the indexing plate to cooperate to realize positioning. And use the pressure plate to compress the indexing plate, so that the indexing plate will not rotate during the processing, so that the accuracy will be guaranteed. The indexing plate and the mounting plate are fixedly connected by mounting bolts, and the indexing plate will be driven by the mounting plate when it rotates. The bracket parts rotate together. The utility model uses the threaded hole on the bracket part blank to cooperate with the mounting stud to achieve center positioning. The positioning plate presses the two arc-shaped plates of the bracket part so that the bracket part is fixed and does not rotate. The fastening nut compresses the rear end surface of the substrate so that the bracket part is positioned in the axial direction. In this way, in the process of processing, the bracket parts will not be loosened, so that the processing accuracy can be guaranteed.

To sum up, the utility model has reasonable design, simple structure and easy operation. It only needs one clamping to complete the processing of multiple processing surfaces. The work efficiency has been greatly improved, and the processing accuracy has also been guaranteed. Operational requirements are also reduced accordingly.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an enlarged view of the four-station milling fixture in Fig. 1;

Fig. 3 is a sectional view of A-A in Fig. 2 .

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail:

As shown in Fig. 1, Fig. 2 and Fig. 3, a milling machine with a four-station milling fixture includes a milling machine body 1. The milling machine body 1 is an existing mature technology, and the specific structure will not be repeated. The workbench 2 of the milling machine body 1 is provided with a four-station milling fixture 3, and the four-station milling fixture 3 includes a base plate 4 which is arranged on the workbench 2 through connecting bolts 30, and a vertical plate 5 is arranged vertically on the front side of the base plate 4 , the upper surface of the base plate 4 and the rear surface of the vertical plate 5 are provided with a diagonal brace 6, and the front side of the vertical plate 5 is connected with a circular index plate 8 through a cylindrical pin 7, and the index plate 8 is evenly distributed along the circumferential direction. Four positioning holes 29 are provided, and the vertical plate 5 is provided with diamond-shaped pins 9 that can be plugged into the four positioning holes 29 respectively. At least three pressing mechanisms 11 are arranged between the index plate 8 .

The compression mechanism 11 comprises a compression plate 12, a compression pin 13, a compression bolt 14 and a compression nut 15, the compression plate 12 is connected to the vertical plate 5 through the compression pin 13, and the compression bolt 14 is arranged on the vertical plate 5 , the inner side of the pressing plate 12 presses the edge of the front surface of the indexing plate 8, the pressing bolt 14 is arranged on the vertical plate 5 and is located between the pressing pin 13 and the indexing plate 8, and the pressing bolt 14 passes through the pressing plate forward 12. The front end of the compression bolt 14 is threadedly connected with a compression nut 15 that presses the pressure plate 12 against the indexing plate 8 .

The front side of the indexing plate 8 is fixedly connected with a mounting plate 17 by mounting bolts 16, and the right side of the mounting plate 17 is provided with a mounting stud 18 concentric with the cylindrical pin 7, and the mounting stud 18 is threadedly connected with a fastening nut 19. The circumferential surface of the fastening nut 19 is uniformly provided with a circle of force grooves 20 along the circumferential direction, and the right side of the mounting plate 17 is provided with positioning mechanisms respectively located above and below the mounting studs 18 .

Positioning mechanism comprises connecting plate 21, positioning plate 22, positioning pin shaft 23 and positioning bolt 24 and positioning nut 25, and the rear side edge of connecting plate 21 is fixedly located on the mounting plate 17, and positioning plate 22 is connected in rotation by positioning pin shaft 23. On the connecting plate 21 , a positioning bolt 24 is arranged on the connecting plate 21 , the positioning bolt 24 is parallel to the positioning pin shaft 23 and is located at the front side of the positioning pin shaft 23 , and the positioning nut 25 is screwed on the positioning bolt 24 .

The working process of the utility model is as follows: Screw the threaded hole on the base body 26 of the bracket part blank to the mounting stud 18, use the dial indicator to find the positions of the two arc-shaped plates 27, and then use a wrench to operate the positioning nut 25, Appropriately compress the two symmetrical arc-shaped plates 27, and then turn the tightening nut 19 to compress the rear end surface of the base body 26. Since the space there is narrow, use an L-shaped booster rod to insert it into the booster groove 20 and tighten it further. Solid nut 19 firmly locates the bracket part blank. After the positioning is completed, turn on the milling machine, rotate the milling cutter, adjust the height of the workbench 2, and then feed. After milling a plane on the circumference of the base body 26, use a wrench to loosen the compression nut 15, and operate the handle 10 to pull out the diamond-shaped pin 9, clockwise Rotate 90°, then insert the rhombic pin 9 into the positioning hole 29 on the indexing plate 8, use a wrench to tighten the compression nut 15 so that the pressure plate 12 presses the indexing plate 8 tightly, and then feed the workbench 2 to the circumference of the base 26 Milling operations on the second plane above. After the milling is completed, the above steps are repeated twice until the peripheral surface of the base body 26 is milled into a quadrangular prism shape. Unclamp fastening nut 19 and positioning nut 25, unload bracket part, carry out the milling operation of next bracket part blank again.

This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model belong to the technology of the utility model. protection scope of the program.

Claims (1)

1. A milling machine with a four-station milling fixture, including a milling machine body, the workbench of the milling machine body is provided with a four-station milling fixture, which is characterized in that: the four-station milling fixture includes a connecting bolt set on the workbench The front side of the bottom plate is vertically provided with a vertical plate, and a slanting support plate is provided between the upper surface of the bottom plate and the rear surface of the vertical plate. The front side of the vertical plate is connected with a circular indexing plate through a cylindrical pin. There are four positioning holes evenly in the vertical direction. There are diamond-shaped pins on the vertical plate that can be plugged into the four positioning holes respectively. There are at least three pressing mechanisms between them; The compression mechanism includes a compression plate, a compression pin, a compression bolt and a compression nut. The compression plate is connected to the vertical plate through the compression pin rotation, the compression bolt is set on the vertical plate, and the inner side of the compression plate compresses the front surface of the indexing plate. At the edge of the edge, the compression bolt is set on the vertical plate and is located between the compression pin and the index plate. The compression bolt passes through the pressure plate forward, and the front end of the compression bolt is threaded to press the pressure plate against the index plate. tight nut; The front side of the indexing plate is fixedly connected with a mounting plate through mounting bolts, and the right side of the mounting plate is provided with a mounting stud on the same center line as the cylindrical pin, and a fastening nut is threaded on the mounting stud, and the circumferential surface of the fastening nut is along the circumferential direction. There is a circle of force grooves evenly in the direction, and the right side of the mounting plate is provided with positioning mechanisms located above and below the mounting studs; The positioning mechanism includes a connecting plate, a positioning plate, a positioning pin shaft, a positioning bolt and a positioning nut. On the plate, the positioning bolt is parallel to the positioning pin shaft and is located at the front side of the positioning pin shaft, and the positioning nut is threadedly connected to the positioning bolt.