CN104089567A - Crankshaft plane parallelism detection device - Google Patents

Abstract

The invention relates to a crankshaft plane parallelism detection device, which includes a platform, a V-shaped block, a positioning support block, a positioning column, a slide table, a slide plate, and a dial gauge. The V-shaped block, the positioning support block, and the slide table are placed on On the platform, two connecting rods are connected between the two V-shaped blocks. A round through hole is provided on the positioning support block along the direction of the connecting rods. The positioning support block can be movably sleeved on a smooth cylinder connecting the rods. There are positioning screws; the slide table is fixed on the left side of the V-shaped block at the left end by two lengthening screws, the slide plate is movably installed on the slide table, the column is fixed on the slide plate, and the dial gauge is installed through the gauge rod on the uprights. The dial gauge contacts of the present invention touch the plane of the small end of the crankshaft to obtain the reading, and compare it with the standard crankshaft to obtain the detection result of the parallelism of the crankshaft plane. The utility model has the advantages of reasonable structure, convenient movement and adjustment, and high detection efficiency, and is especially suitable for detecting the parallelism of the plane processed on the cylinder at the small end of the crankshaft.

Description

Crankshaft plane parallelism detection device

technical field

The invention relates to a detection device for the parallelism of parts, in particular to a detection device for the parallelism of a crankshaft plane.

Background technique

We know that some cylinders at the small end of the crankshaft need to be machined with symmetrical planes, and the planes have parallelism requirements. Usually, the measurement is carried out on the platform with V-shaped blocks, and the center plane is found with the first connecting rod journal and the main journal, and then used The dial indicator measures the parallelism value. This method is troublesome and inefficient. So far, there is no literature report on a dedicated crankshaft plane parallelism detection device.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a crankshaft plane parallelism detection device with reasonable structure, convenient movement and adjustment, and high detection efficiency.

The technical solution adopted by the present invention to solve the above technical problems is: a crankshaft plane parallelism detection device, which includes a platform, a V-shaped block supporting the main journals at both ends of the crankshaft, a positioning support block supporting the first connecting rod of the crankshaft, a positioning column, Install the slide table, slide plate, column, and dial indicator of the dial indicator, the positioning column is fixed on the positioning support block, and the V-shaped block, the positioning support block, and the slide table are placed on the platform, and it is characterized in that: the Two connecting rods are connected between the two V-shaped blocks, threaded rods are provided at both ends of the connecting rods, and a circular through hole is arranged on the positioning support block along the direction of the connecting rods, through which the positioning support block can be moved It is set on a smooth cylinder connected with a tie rod, and positioning screws are arranged inside; the slide table is fixed on the left side of the V-shaped block at the left end by two lengthening screws, the slide plate is movably installed on the slide table, and the column Fixed on the slide plate, the dial gauge is installed on the column through the gauge rod.

The V-shaped block at the right end of the present invention is provided with a round through hole, two connecting rods pass through the round through hole on the V-shaped block, and the right-hand threaded rod is connected with an adjusting nut.

An adjustment pad is also sheathed on the connecting rod, and the adjustment pad is located on the left side of the V-shaped block at the right end. The distance between the two V-shaped blocks can be adjusted by adjusting the nut and the adjusting pad, so as to ensure reliable and accurate support of the main journals at both ends of the crankshaft by the two V-shaped blocks.

When the present invention detects, the main journals at both ends of the crankshaft are put into two V-shaped blocks, the first connecting rod of the crankshaft is placed close to the end face of the positioning column, and then the slide plate is pushed, and the dial indicator moves to the small end of the crankshaft to adjust the percentage. The gauge reaches an appropriate height so that its contacts touch the plane of the small end of the crankshaft to obtain the test result. Compared with the prior art, the invention has reasonable structure, convenient movement adjustment and high detection efficiency, and is especially suitable for detecting the parallelism of the plane processed on the cylinder at the small end of the crankshaft.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic front view of the assembly structure of the present invention.

Fig. 2 is a schematic view in direction B of Fig. 1 .

Fig. 3 is a schematic diagram in direction C of Fig. 1 .

In the figure 1. platform, 2. lengthening screw, 3. slide table, 4. slide plate, 5. column, 6. crankshaft, 7. gauge rod, 8. pressure gauge screw, 9. dial indicator, 10. V shape Block, 11. positioning column, 12. positioning support block, 13. positioning screw, 14. connecting rod, 15. adjusting pad, 16. V-shaped block, 17. adjusting nut.

Detailed ways

As can be seen from Fig. 1, Fig. 2 and Fig. 3, a crankshaft plane parallelism detection device includes a platform 1, a slide table 3, a slide plate 4, a column 5, a crankshaft 6, a table connecting rod 7, a dial gauge 9, V-shaped block 10, V-shaped block 16, positioning column 11, positioning support block 12, etc. The V-shaped block 10 and the V-shaped block 16 are used to support the main journals at both ends of the crankshaft 6, and the positioning support block 12 and the positioning column 11 are used to support the first connecting rod of the crankshaft. The positioning column 11 is fixed on the positioning support block 12 , and the V-shaped block 10 , the V-shaped block 16 , the positioning support block 12 and the slide table 3 are placed on the platform 1 .

Two connecting rods 14 are connected between the V-shaped block 10 and the V-shaped block 16 of the present invention, and the two ends of the connecting rods 14 are provided with threaded rods, and the left end threaded rods are screwed into the right side of the V-shaped block 10, and the right end Threaded rod passes through the established through hole of V-shaped block 16, and tightens with adjusting nut 17. The positioning support block 12 is provided with a round through hole along the direction of the connecting rod 14, through which the positioning supporting block 12 can be movably sleeved on a smooth cylinder of the connecting rod 14, and a positioning screw 13 is arranged inside it. The positioning support block 12 of the present invention can move along the connecting rod 14, so that the positioning support block 12 can be slid and adjusted to an appropriate position according to the length of the crankshaft, and positioned with the positioning screw 13 to accurately support the first connecting rod of the crankshaft.

The sliding table 3 of the present invention is fixed on the left side of the V-shaped block 10 at the left end by two elongated screws 2, specifically, the two elongated screws 2 pass through the through holes of the sliding table 3 and are screwed into the bottom of the V-shaped block 10 at the left end. In the two screw holes, the slide table 3 is fixed on the left side of the V-shaped block 10 at the left end. The upper part of the slide table 3 is convexly and concavely connected with the lower part of the slide plate 4 , and the slide plate 4 is movably mounted on the slide table 3 . The column 5 is fixed on the slide plate 4, and the dial indicator 9 is installed on the column 5 through the table connecting rod 7. The column 5 is welded with the slide plate 4 and the table connecting rod 7 . The measuring rod of dial indicator 9 passes through the established through hole of table connecting rod 7, and is fixed with pressure gauge screw 8.

The V-shaped block 16 at the right end of the present invention is provided with a round through hole, two connecting rods 14 pass through the round through hole on the V-shaped block 16, and the right-hand threaded rod is connected with an adjusting nut 17. An adjustment pad 15 is also sheathed on the connecting rod 14, and the adjustment pad 15 is located on the left side of the V-shaped block 16 at the right end. The adjusting pad 15 is sleeved on the connecting rod 14, and it is close to the left side of the V-shaped block 16. According to the difference in the axial length of the crankshaft 6, one or more adjusting pads can be used for adjustment. In the present invention, the distance between the two V-shaped blocks can be adjusted through the adjusting nut 17 and the adjusting pad 15, so as to ensure reliable and accurate support of the two V-shaped blocks for the main journals at both ends of the crankshaft.

When the present invention detects, the main journals at both ends of the crankshaft are put into two V-shaped blocks 10 and V-shaped blocks 16, the first connecting rod of the crankshaft is pressed against the end face of the positioning column 11, and then the slide plate 4 is pushed, and the dial indicator 9 is followed Move to the small end of the crankshaft 6, adjust the dial indicator 9 to an appropriate height, and make the contact point touch the plane of the small end of the crankshaft to obtain the reading, and compare it with the standard crankshaft to obtain the test result of the parallelism of the crankshaft plane.

The invention has the advantages of reasonable structure, convenient movement adjustment and high detection efficiency, and is especially suitable for detecting the parallelism of the plane processed on the cylinder at the small end of the crankshaft.

Claims (3)

1. a bent axle plane parallelism pick-up unit, it comprises platform, support the vee-block of crankshaft two end king journal, support the positioning support bracer of bent axle first connecting rod, reference column, the slide unit of dial gauge is installed, slide plate, column, dial gauge, described reference column is fixed on positioning support bracer, described vee-block, positioning support bracer, slide unit is placed on platform, it is characterized in that: between described two vee-blocks, be connected with two cylinder lever connecting rods, described cylinder lever connecting rod two ends are provided with threaded rod, on described positioning support bracer, along cylinder lever connecting rod direction, be provided with a round tube hole, by this round tube hole, positioning support bracer Moveable-jacket is on the smooth cylinder of a cylinder lever connecting rod, its the inside is provided with dog screw, described slide unit adds by two the vee-block left side that long spiro nail is fixed on left end, and described slide plate is removable to be arranged on slide unit, and described column is fixed on slide plate, and dial gauge is arranged on column by table extension bar.

2. bent axle plane parallelism pick-up unit according to claim 1, is characterized in that: the vee-block of described right-hand member is provided with round tube hole, and two cylinder lever connecting rods are through the round tube hole on vee-block, and right-hand member threaded rod is connected with setting nut.

3. bent axle plane parallelism pick-up unit according to claim 1, is characterized in that: on described cylinder lever connecting rod, also cover has adjusting pad, adjusting pad to be positioned at the vee-block left side of right-hand member.