CN214488867U

CN214488867U - A car anchor clamps for dysmorphism processing

Info

Publication number: CN214488867U
Application number: CN202022426340.4U
Authority: CN
Inventors: 任峥嵘
Original assignee: Dalian Innovation Manufacturing Co
Current assignee: Dalian Innovation Manufacturing Co
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-10-26
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a turning clamp for machining a special-shaped part, which comprises a positioning plate (3) fixed on a bottom plate (4), a first pressing plate (5) and a second pressing plate (8) which are fixed on the positioning plate (3) and are uniformly distributed at two sides of a workpiece, a first positioning pin (6) and a second positioning pin (7), wherein a balance weight (1) is additionally arranged on the bottom plate (4), and the shape of the bottom plate (4) is fit; the balance weight (1) and the bottom plate (4) are fixedly connected in corresponding positions of the screw holes (10) through two M10 bolts; two positioning pin holes (11) at corresponding positions of the balance weight (1) and the bottom plate (4) are connected and fixed through positioning pins; the reinforcing ribs (9) are welded on the positioning plate (3) and are fixed on the bottom plate (4) together by screws. After the turning clamp is used, the processing time is reduced from 4.52 minutes per piece to 2.5 minutes per piece; and the inner cavity processing is finished by one-time clamping, so that the coaxiality of the series of inner cavities is greatly improved, and the assembly quality of the product is improved.

Description

A car anchor clamps for dysmorphism processing

Technical Field

The utility model relates to a machining technical field specifically is a car anchor clamps for dysmorphism processing.

Background

The workpiece is a part of an engine, namely a thermostat seat, and a rotary body, namely a thermostat, needs to be assembled in an inner cavity. In the original processing procedure, the upper end face of a processing center is milled by a disc mill, and a series of inner cavities (with the diameters of phi 66, phi 57 and phi 24) are milled by a rod to form tracks, so that the time required for processing is 4.5 minutes per piece. The working procedure is to process the upper end surface and the inner cavity and carry out knife inspection. The positioning of two pins (datum B, C) on one side (datum a) is used during machining on a lathe, see fig. 1.

SUMMERY OF THE UTILITY MODEL

The utility model provides a car anchor clamps for dysmorphism processing, a series of inner chamber holes with the dysmorphism piece of lathe processing have improved work efficiency by a wide margin.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a turning clamp for machining a special-shaped part comprises a positioning plate (3) fixed on a bottom plate (4), a first pressing plate (5), a second pressing plate (8), two positioning pins (6) and a second positioning pin (7), wherein the first pressing plate and the second pressing plate are fixed on the positioning plate (3) and are uniformly distributed on two sides of a workpiece, and a balance weight (1) is additionally arranged on the bottom plate (4) and is attached to the bottom plate (4) in shape; the balance weight (1) and the bottom plate (4) are fixedly connected in corresponding positions of the screw holes (10) through two M10 bolts; two positioning pin holes (11) at corresponding positions of the balance weight (1) and the bottom plate (4) are connected and fixed through positioning pins; the reinforcing ribs (9) are welded on the positioning plate (3) and are fixed on the bottom plate (4) together by screws.

The workpiece (2) is positioned by a typical one-side two-pin positioning, namely by the positioning plate (3) and two positioning pins, the positioning pin I (6) and the positioning pin II (7), and then is simultaneously pressed by the pressing plate I (5) and the pressing plate II (8).

Because the workpiece is not an even revolving body, the positioning plate (3) deviates to one side, so that the positioning plate is also far away from the rotating center of the clamp, and the unbalance amount during revolving is further increased. To counteract this large unbalance, the counterweight (1) is designed (as shown in fig. 4-5) to be shaped to fit the base plate (4), so that the height of the counterweight can be minimized to be no higher than the clamped workpiece, and the feed of the turning is not affected.

The balance weight (1) and the bottom plate (4) are fixedly connected in corresponding positions of the screw holes (10) by two bolts M10. Although the counter weight is calculated during design, after the clamp is manufactured, the counter weight is adjusted through multiple actual measurements, the unbalance during rotation is completely eliminated, and the two positioning pin holes (11) in the corresponding positions of the counter weight (1) and the bottom plate (4) are connected and fixed through the positioning pins, so that the design for improving the reloading precision is realized.

In addition, the bottom plate is directly designed into the circular bottom plate (4) so as to directly clamp the clamp by the chuck plate, thereby not only greatly reducing the difficulty of replacing the clamp, but also greatly saving the time required by replacing the clamp.

Because the positioning plate (3) extends out of the bottom plate for a long time and is easy to deform in high-speed rotation, in order to solve the problem, two reinforcing ribs (9) are specially added, and the reinforcing ribs (9) are connected with the positioning plate (3) through welding and are fixed on the bottom plate (4) together through screws.

The product is a high-pressure cast aluminum part, the precision is high, the turning speed can be high and is much faster than the track milling, and the processing time of each part is reduced from the original 4.5 minutes to 2.5 minutes; in addition, because the processing is finished by one-time clamping, the coaxiality of the series of inner cavities is greatly improved, the assembly quality of the product is also improved, and the coaxiality is verified by actual production.

The turning clamp of the utility model arranges the workpiece on a lathe for processing, so that a series of inner cavity holes which are originally required to be processed by a bar milling track on a vertical processing center are finished by turning; because the lathe clamp is a special-shaped piece (see fig. 1), the layout of the lathe clamp is deviated to one side, the rotation is unbalanced during processing, the knife bounces, and a proper counterweight is needed; the presence of the counterweight makes the layout of the clamp difficult.

The utility model has the advantages that: after the turning clamp is used, the processing time is reduced from 4.52 minutes per piece to 2.5 minutes per piece; and the coaxiality of the series of inner cavities is greatly improved because the inner cavities are machined by one-time clamping, so that the assembly quality of the product is greatly improved (the inner cavities of the product need to be assembled with a rotary body).

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a production view of a work piece.

Fig. 2 is a front view of the clamp.

Fig. 3 is a top view of the clamp.

Fig. 4 is a front view of the weight.

FIG. 5 is a side view of the weight; fig. 6 is a right side view of the clamp without the counterweight.

In the figure: 1. balancing weight; 2. a workpiece; 3. positioning a plate; 4. a base plate; 5. pressing a first plate; 6. a first positioning pin; 7. a second positioning pin; 8. pressing a second plate; 9. reinforcing ribs; 10. a screw hole; 11. a positioning pin hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 2-6, a turning clamp for machining a special-shaped part comprises a positioning plate 3 fixed on a bottom plate (4), a first pressing plate 5 and a second pressing plate 8, two first positioning pins 6 and two second positioning pins 7, wherein the first pressing plate 5 and the second pressing plate 8 are fixed on the positioning plate 3 and are uniformly distributed on two sides of a workpiece, and a counterweight 1 is additionally arranged on the bottom plate 4 and is attached to the bottom plate 4 in shape; the balance weight 1 and the bottom plate 4 are fixedly connected in a screw hole 10 at corresponding positions by two bolts M10; the two positioning pin holes 11 at the corresponding positions of the counterweight 1 and the bottom plate 4 are connected and fixed through positioning pins; the reinforcing ribs 9 are welded on the positioning plate 3 and are fixed on the bottom plate 4 together by screws.

The workpiece 2 is typically positioned by a face-to-face pin, i.e., by the positioning plate 3 and two positioning pins, positioning pin one 6 and positioning pin two 7, and then pressed by the pressing plate one 5 and the pressing plate two 8 simultaneously.

Because the work piece itself is not even solid of revolution, so locating plate 3 is partial to one side, and this leads to the locating plate also to be propped up far away from anchor clamps rotation center, has further increased the unbalance amount when gyration. To counteract this large unbalance, the counterweight 1 (shown in fig. 4-5) is designed to conform to the base plate 4, so that the height of the counterweight can be minimized to be no higher than the clamped workpiece, and the feed of the turning can not be affected.

The counterweight 1 and the bottom plate 4 are fixedly connected by two M10 bolts in the corresponding screw holes 10. Although the counter weight is calculated during the design, after the clamp is manufactured, the counter weight is subjected to multiple actual measurement and adjustment, the unbalance during rotation is completely eliminated, and the two positioning pin holes 11 in the corresponding positions of the counter weight 1 and the bottom plate 4 are connected and fixed through the positioning pins, so that the design for improving the reassembly precision is realized.

In addition, the bottom plate is directly designed to be matched with the circular bottom plate 4, so that the clamp can be directly clamped by the chuck plate, the difficulty of replacing the clamp is greatly reduced, and the time required by replacing the clamp is greatly saved.

Because the positioning plate 3 extends out of the bottom plate for a long time and is easy to deform in high-speed rotation, in order to solve the problem, two reinforcing ribs 9 are specially added, and the reinforcing ribs 9 are connected with the positioning plate 3 through welding and are fixed on the bottom plate 4 together through screws.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope of the present invention.

Claims

1. The turning clamp for machining the special-shaped part is characterized by comprising a positioning plate (3) fixed on a bottom plate (4), a first pressing plate (5) and a second pressing plate (8) which are fixed on the positioning plate (3) and evenly distributed on two sides of a workpiece, and a first positioning pin (6) and a second positioning pin (7), wherein a balance weight (1) is additionally arranged on the bottom plate (4), and the shape of the balance weight is fit with that of the bottom plate (4); and the balance weight (1) and the bottom plate (4) are fixedly connected in corresponding positions of the screw holes (10) by two bolts M10.

2. The turning clamp for machining special-shaped parts according to claim 1, characterized in that two positioning pin holes (11) in corresponding positions of the counterweight (1) and the bottom plate (4) are fixedly connected through positioning pins.

3. The turning jig for profile processing according to claim 1, wherein the reinforcing ribs (9) are welded to the positioning plate (3) and are fixed together to the base plate (4) by screws.