CN205651104U - A anchor clamps for blank processing of scroll compressor partition ring - Google Patents

Abstract

The utility model discloses an anchor clamps for blank processing of scroll compressor partition ring, include the base plate, arrange in anchor clamps monomer on the base plate, its characterized in that: the anchor clamps monomer includes the locating piece, be equipped with on the locating piece and be used for the centre gripping the ball head plunger and the clamp splice of partition ring blank work piece, the clamp splice passes through clamp bolt control and presss from both sides tight degree, the anchor clamps monomer is two double -phase right 4, the anchor clamps monomer passes through the locating piece with the clamp splice presss from both sides tightly two pairs of keys that are cross cross -distribution on the partition ring blank work piece, still be equipped with locating pin and construction bolt on the locating piece. The utility model provides a with the bad problem of plane degree of its machined surface of traditional anchor clamps processing partition ring blank, simple structure has, can obviously reduce traditional anchor clamps and press from both sides the work piece clamping deformation size after tight, can effectively guarantee the advantages such as plane degree requirement after the work piece processing.

Description

A Fixture Used for Machining the Oldham Ring Blank of Scroll Compressor

technical field

The utility model relates to the field of fixtures for processing scroll compressor cross ring blanks on a horizontal machining center, which is suitable for cast aluminum cross ring blanks with one side being flat and two pairs of keys arranged in a cross distribution on one side, specifically Said to be a kind of fixture used for the blank machining of the Oldham ring of the scroll compressor.

Background technique

The existing fixtures for processing the cross ring blank generally have fixed support points and auxiliary support points. After the workpiece is placed in the fixture, the workpiece is pressed by the pressing block on the fixture, and the direction of the pressing force is perpendicular to the workpiece processing surface.

Since the cross ring blank is cast aluminum and is a circular workpiece, the strength of the workpiece is relatively poor. When it is subjected to a pressing force perpendicular to the processing surface of the workpiece, it will bend and deform as a whole. At this time, the clamp will be released after processing the plane. , the workpiece will rebound and deform again, so use this type of fixture to compress the workpiece for processing, the flatness of the workpiece after processing is generally poor, and the processing quality is difficult to guarantee.

Utility model content

According to the technical problem raised above, a fixture for machining the blank of the Oldham ring of a scroll compressor is provided. The utility model mainly changes the traditional way of clamping the workpiece, and adopts the way of clamping the workpiece in the horizontal direction, so that the direction of its force is changed from perpendicular to the processing surface to parallel to the processing surface, so as to effectively ensure the plane surface of the workpiece after processing. The effect of degree requirements.

The technical means adopted in the utility model are as follows:

A fixture for machining the Oldham ring blank of a scroll compressor, comprising a base plate and a fixture unit placed on the base plate, characterized in that the fixture unit includes a positioning block, and the positioning block is provided with a The ball plunger and the clamping block that clamp the cross ring blank workpiece, the clamping block controls the clamping degree through the clamping bolts; The positioning block and the clamping block clamp two pairs of keys distributed in a cross on the workpiece of the cross ring blank; the positioning block is also provided with positioning pins and mounting bolts.

Further, grooves are provided on the contact surfaces of the positioning block and the clamping block with the workpiece of the Oldham ring blank.

Further, the cross ring blank workpiece is axially positioned by the axial positioning surface of the cross ring blank workpiece against the upper surface of the positioning block, and the cross ring blank workpiece is pressed against the spring force of the ball plunger. Close to the positioning surface of the positioning block under the action of the positioning block, the X and Y direction positioning of the cross ring blank workpiece is carried out.

Compared with the prior art, the utility model solves the problem of poor flatness of the processing surface of the cross ring blank processed by the traditional fixture, and clamps the two symmetrically distributed cross rings on the cross ring blank workpiece through the positioning block and the clamping block on the fixture. For the key, since the clamping force is parallel to the processing surface, even if the clamping deformation occurs, it will be deformed in the processing plane, which has little effect on the overall flatness; grooves are arranged on the positioning block and the clamping block, which can reduce the contact with the workpiece When the workpiece is clamped by the fixture, because the blank is cast aluminum, the material is soft and the contact area is small, so that the contact part of the workpiece is partially plastically deformed, which can reduce the overall deformation of the workpiece, thereby ensuring that the workpiece has a relatively large surface area after processing. Good flatness.

The utility model changes the overall deformation of the workpiece from being vertical to the processing plane to being parallel to the processing plane, and due to the groove design on the clamping surface of the fixture, the contact point of the workpiece can be locally deformed, and the overall deformation of the workpiece can also be reduced to a certain extent , so as to effectively ensure the flatness requirements of the workpiece after processing, the structure is simple, and the practicability is strong.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is a structural schematic diagram of the clamp of the present utility model.

Fig. 2 is a schematic structural view of the ball plunger of the present invention.

Fig. 3 is a schematic diagram of the structure of the clamping block groove of the utility model.

Fig. 4 is a structural schematic diagram of the cross ring blank workpiece of the present invention.

FIG. 5 is a side view of FIG. 4 .

FIG. 6 is a rear view of FIG. 4 .

Fig. 7 is a schematic diagram of the structure of the cross ring blank workpiece of the utility model put into the fixture.

In the figure: 1, base plate 2, positioning block 3, ball plunger 4, clamping block 5, positioning pin 6, mounting bolt 7, clamping bolt 8, plane to be processed 9, axial positioning surface 10, key

detailed description

As shown in Fig. 1, a kind of fixture that is used for the machining of the Oldham ring blank of scroll compressor comprises a base plate 1, a fixture unit placed on the base plate 1, the fixture unit includes a positioning block 2, and the positioning The block 2 is provided with a ball plunger 3 and a clamping block 4 for clamping the workpiece of the cross ring blank, and the clamping block 4 controls the clamping degree through the clamping bolt 7; 4 pieces, the fixture unit clamps two pairs of keys distributed in a cross on the cross ring blank workpiece through the positioning block 2 and the clamping block 4; the positioning block 2 is also provided with a positioning pin 5 and mounting bolts 6.

Grooves are provided on the contact surfaces of the positioning block 2 and the clamping block 4 with the workpiece of the Oldham ring blank (as shown in FIG. 2 and FIG. 3 ). By reducing the contact area with the cross-ring blank workpiece, and the material of the cross-ring blank workpiece is soft, local plastic deformation occurs at the contact part of the cross-ring blank workpiece, thereby reducing the overall deformation of the cross-ring blank workpiece.

Figures 4-6 are structural schematic diagrams of the Oldham ring blank workpiece, one side is the plane 8 to be processed, and the other side is the axial positioning surface 9 of two pairs of keys 10 used for fixing the Oldham ring.

As shown in Figure 7, put the cross ring blank workpiece into the fixture, make the axial positioning surface 9 of the cross ring blank workpiece lean against the upper surface of the fixture positioning block 2, and carry out axial positioning, and the cross ring blank workpiece is in the fixture Under the action of the spring force of the ball plunger 3 in the center, it will be close to the positioning surface of the fixture positioning block 2 for positioning in the X and Y directions, and then tighten the upper, lower, left and right clamping bolts sequentially by hand 7. Finally, use the torque wrench to tighten the clamping bolts again in the order of right, left, down and up with the same torque.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (3)

1. A fixture used for machining the Oldham ring blank of a scroll compressor, comprising a base plate (1), a fixture unit placed on the base plate (1), characterized in that: the fixture unit comprises a positioning block ( 2), the positioning block (2) is provided with a ball plunger (3) and a clamping block (4) for clamping the cross ring blank workpiece, and the clamping block (4) is passed through the clamping bolt (7 ) to control the degree of clamping; the single fixtures are 4 opposite to each other, and the single fixtures are clamped on the cross ring blank workpiece by the positioning block (2) and the clamping block (4). Two pairs of keys distributed in a cross; the positioning block (2) is also provided with positioning pins (5) and mounting bolts (6). 2. The fixture for machining the Oldham ring blank of the scroll compressor according to claim 1, characterized in that: the contact surface between the positioning block (2) and the clamping block (4) and the workpiece of the Oldham ring blank All have grooves. 3. The fixture for machining Oldham ring blanks of scroll compressors according to claim 1, characterized in that: said Oldham ring blank workpieces lean against said Oldham ring blank workpieces through the axial positioning surface (9) of said Oldham ring blank workpieces The upper surface of the positioning block (2) is axially positioned, and the workpiece of the cross ring is close to the positioning surface of the positioning block (2) under the action of the spring force of the ball plunger (3). The cross ring blank workpiece is positioned in the X and Y directions.