CN101637872B - Clamp for machining inside diameters and outer diameters of fixed ball races - Google Patents

Abstract

The invention discloses a jig for turning the inner and outer diameters of bead rings. The jig can be used to process the inner and outer diameters of multiple bead rings at the same time, and the concentricity of the processed bead rings is good. High work efficiency, stable processing size. The chassis, connecting block and pressing block of the fixture are all in the shape of a ring; the connecting block is concentric with the chassis and the inner diameter of the connecting block is smaller than the inner diameter of the chassis, a part of the connecting block is connected to the disk surface of the chassis, and two connecting blocks are arranged on the other part of the connecting block. One or more threaded holes and two or more positioning pin mounting holes, two or more bolt connection holes are provided on the pressing block, and two or more positioning pin connection holes are provided on the pressing block; One end of each locating pin is tightly fitted in the corresponding locating pin mounting hole, and the other end is placed in the corresponding locating pin connecting hole; each connecting bolt passes through the corresponding bolt connecting hole and is threadedly connected with the corresponding threaded hole.

Description

A fixture for turning the inner and outer diameters of bead rings

technical field

The invention relates to an auxiliary tool for processing a bead ring, in particular to a fixture for turning the inner and outer diameters of a bead ring.

Background technique

The bead ring is thin in thickness and large in size. If the bead ring is processed by a single piece, it is easy to cause deformation when clamping the bead ring. In addition, the inner and outer diameters of the car need to be clamped twice, resulting in poor concentricity. The work efficiency is low, and the processed size is unstable.

Contents of the invention

The technical problem to be solved by the present invention is to provide a jig for turning the inner and outer diameters of bead rings. Using this jig, the inner and outer diameters of multiple bead rings can be turned at the same time, and the processed bead rings are concentric The degree of precision is good, the processing efficiency is high, and the processing size is stable.

The invention includes a chassis, a connecting block, a pressing block, two or more positioning pins and two or more connecting bolts; the chassis, connecting blocks and pressing blocks are all in the shape of a ring; the connecting block is concentric with the chassis and The inner diameter of the connection block is smaller than the inner diameter of the chassis, a part of the connection block is connected to the surface of the chassis, and two or more threaded holes and two or more positioning pin mounting holes are set on the other part of the connection block, and on the pressing block Set two or more bolt connection holes corresponding to the two or more threaded holes, and set two or more bolt connection holes corresponding to the two or more positioning pin mounting holes on the pressing block. More than one locating pin connecting hole; one end of each locating pin is installed in the corresponding locating pin mounting hole, and the other end is placed in the corresponding locating pin connecting hole; each connecting bolt passes through the corresponding bolt connecting hole and corresponds to the corresponding locating pin respectively. threaded holes for threaded connections.

When using the fixture in the present invention, the chassis is connected on the headstock of the lathe; the bolts are unscrewed; the briquetting block is disassembled; and then a plurality of bead rings to be processed are installed on the positioning pins, that is, through the bead holes of the bead rings Put the bead ring on the positioning pin; then connect the pressure block to the positioning pin through the positioning pin connection hole on the pressure block; finally, the connecting bolt passes through the bolt connection hole on the pressure block, and then passes through the bead of the bead ring The hole is threadedly connected with the threaded hole on the chassis connection block. The fixture can be used to process the inner and outer diameters of multiple bead rings at the same time, and the processed bead rings have good concentricity, small deformation of the processed bead rings, and stable processing dimensions. The use of this fixture also improves the processing efficiency. .

Preferably, there are two threaded holes and two locating pin mounting holes; the center line of the above two threaded holes passes through the center of the connecting block, the center line of the above two locating pin mounting holes passes through the center of the connecting block, and the two The line connecting the centers of the two threaded holes is perpendicular to the line connecting the centers of the two positioning pin mounting holes.

Preferably, three or more evenly distributed bolt connection holes are provided on the chassis.

The bolt connection holes provided on the chassis can facilitate the mutual connection between the chassis and the headstock of the lathe through bolts, thereby facilitating the maintenance of the fixture.

Instructions attached

Fig. 1 is the structural representation of fixture;

Fig. 2 is the sectional view of line A-A among Fig. 1;

Fig. 3 is a sectional view along line B-B in Fig. 1 .

Detailed ways

As shown in Figure 1, Figure 2 and Figure 3, the fixture in this embodiment includes a chassis 1, a connecting block 2, a pressing block 3, two positioning pins 4 and two connecting bolts 5; the chassis 1, connecting block 2 and the briquetting block 3 are in the shape of a ring.

The connection block 2 is concentric with the chassis 1 and the inner diameter of the connection block 2 is smaller than the inner diameter of the chassis 1 . A part of the connection block 2 is connected to the surface of the chassis 1 . Two threaded holes 2-1 and two positioning pin mounting holes 2-2 are set on another part of the connecting block 2 . The center line of the two threaded holes 2-1 passes through the center of the connection block 2, the center line of the two positioning pin mounting holes 2-2 passes through the center of the connection block 2, and the center line of the two threaded holes 2-1 The center line and the center line of the two positioning pin mounting holes 2-2 are perpendicular to each other.

Two bolt connection holes 3-1 corresponding to the two threaded holes 2-1 are set on the briquetting block 3, and two bolt connection holes 3-1 corresponding to the two positioning pin mounting holes 2-2 are set on the briquetting block 3. A positioning pin connecting hole 3-2.

One end of each positioning pin 4 is installed in the corresponding positioning pin installation hole 2-2, and the other end is placed in the corresponding positioning pin connecting hole 3-2. Each connecting bolt 5 passes through the corresponding bolt connecting hole 3-1 and is threadedly connected with the corresponding threaded hole 2-1.

In addition, four evenly distributed bolt connection holes 1 - 1 are provided on the chassis 1 .

Claims (3)

1. A fixture for fixing the inner and outer diameters of bead rings, characterized in that: it includes a chassis, a connecting block, a briquetting block, two or more positioning pins and two or more connecting bolts; The chassis, connection block and pressure block are all in the shape of a ring; the connection block is concentric with the chassis and the inner diameter of the connection block is smaller than the inner diameter of the chassis, a part of the connection block is connected to the disk surface of the chassis, and two or two For the above threaded holes and two or more positioning pin mounting holes, two or more bolt connection holes corresponding to the two or more threaded holes are arranged on the pressing block, and two or more bolt connection holes corresponding to the two or more threaded holes are arranged on the pressing block The two or more locating pin mounting holes correspond to two or more locating pin connecting holes; one end of each of the above locating pins is tightly fitted and connected in the corresponding locating pin mounting hole, and the other end is placed in the corresponding Each connecting bolt passes through the corresponding bolt connecting hole and is threadedly connected with the corresponding threaded hole. 2. The clamp for fixing the inner and outer diameters of bead circles according to claim 1, characterized in that: there are two threaded holes and positioning pin mounting holes respectively; the connecting line between the centers of the two threaded holes passes through In the center of the connection block, the center connection line of the above-mentioned two positioning pin mounting holes passes through the center of the connection block, and the center connection line of the two threaded holes is perpendicular to the center connection line of the two positioning pin mounting holes. 3. The clamp for turning the inner and outer diameters of bead rings according to claim 1 or 2, characterized in that three or more evenly distributed bolt connection holes are provided on the chassis.

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