CN218747187U - Positioning tool for crankshaft - Google Patents

Abstract

The utility model discloses a location frock for bent axle, including workstation, first gyro wheel seat, second gyro wheel seat, removal subassembly, first gyro wheel seat with the removal subassembly is all established on the workstation, and the two interval distribution, the second gyro wheel seat is established on the removal subassembly, the removal subassembly is used for the drive the second gyro wheel seat is close to or keeps away from first gyro wheel seat. According to the utility model discloses a location frock for bent axle can realize not unidimensional main shaft footpath bent axle location simply, fast, effectively.

Description

Positioning tool for crankshaft

Technical Field

The utility model relates to a measure technical field, in particular to a location frock for bent axle.

Background

At present, when carrying out location detection to engine crankshaft, common location frock, tool locate mode mainly have two kinds: 1. positioning by using a crankshaft center hole; 2. and V-shaped positioning is adopted according to the size of the main journal. When multi-specification crankshafts are detected, the positioning tool needs to be designed and customized according to the shaft diameter size, and is not effective and quick in positioning by the shaft diameter aiming at special detection requirements, especially when the main shaft diameters of different sizes are required to be positioned on the same crankshaft

Chinese patent CN103753242A discloses a crankshaft fixture, which adopts V-shaped positioning according to the size of main journal, but cannot perform positioning quickly and effectively through main shaft diameters of different sizes.

Disclosure of Invention

The utility model aims at providing a location frock for bent axle, solved V type location and supported compatible and problem to unidimensional diameter of axle, the adjustment is easily changed on-the-spot, makes convenient, reliable.

In order to solve the technical problem, the utility model discloses the technical scheme who takes does:

a positioning tool for a crankshaft comprises a workbench, a first roller seat, a second roller seat and a moving assembly.

The first roller seat and the second roller seat are arranged on the workbench and are distributed at intervals, the second roller seat is provided with a moving assembly, and the moving assembly is used for driving the second roller seat to be close to or far away from the first roller seat.

In some embodiments, the first roller seat includes a first base, a first bearing seat, and two first rollers, the first base is fixedly connected to the workbench, the first bearing seat is connected to the first base through a ball bushing, a guide shaft, and an adjusting bolt, the guide shaft and the adjusting bolt are vertically distributed, the first bearing seat and the guide shaft are in guiding fit through the ball bushing, the adjusting bolt is used for locking the first bearing seat, the first rollers are in rotational fit with the first bearing seat, and the first rollers are spaced at the upper end of the first bearing seat.

In some embodiments, the second roller seat includes a second base, a second bearing seat, and two second rollers, where the second base is fixedly connected to the moving assembly, the second bearing seat is disposed on the base, the second rollers are rotatably engaged with the second bearing seat, and the two second rollers are spaced apart from each other at an upper end of the second bearing seat.

In some embodiments, the outer circles of the first roller and the second roller are both flanges.

In some embodiments, the moving assembly includes a guide rail, a pad, and a driving unit, the guide rail is disposed on the worktable, the pad is disposed on the guide rail and moves along an extending direction of the guide rail, and the driving unit is configured to control the pad to move.

In some embodiments, the driving unit is an adjusting screw, a fixing block is slidably fitted on the adjusting screw, the fixing block is fixedly connected with the backing plate, and the adjusting screw and the guide rail are distributed in parallel.

In some embodiments, the bottom of the base plate is provided with a sliding block, and the sliding block is in sliding fit with the guide rail.

In some embodiments, the track is disposed perpendicular to the first roller mount.

The utility model discloses the beneficial effect who has does:

according to the utility model discloses a location frock for bent axle, through the V type location of first gyro wheel seat and second gyro wheel seat to bent axle diameter of axle, second gyro wheel seat accessible guiding axle and adjusting bolt carry out height control, can realize the interval adjustment between second gyro wheel seat and the first gyro wheel seat through removing the subassembly, realize the support location of same bent axle different positions or not unidimensional bent axle, the on-the-spot adjustment of easily changing, simple operation, reliable practice thrift measuring time.

Drawings

Fig. 1 is a schematic view of a positioning tool for a crankshaft according to an embodiment of the present invention;

fig. 2 is a top view of the positioning tool for the crankshaft according to the embodiment of the present invention;

fig. 3 is a schematic view of a first roller seat according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model discloses a location frock for bent axle includes: a worktable 100, a first roller seat 200, a second roller seat 300 and a moving assembly 400.

Specifically, as shown in fig. 1 and fig. 2, the moving assembly 400 includes two guide rails 2, two pad plates 3, and two adjusting screws 4, the two guide rails 2 are parallel and spaced and fixedly connected to the worktable 100, the pad plates 3 are slidably fitted on the guide rails 2 and can move along the extending direction of the guide rails 2, and the adjusting screws 4 are disposed above one of the guide rails 2 and slidably fitted with the pad plates 3 through fixing blocks. The adjusting screw 4 is used for controlling the movement of the backing plate 3. The first roller base 200 is disposed on the table 1001 and is vertically distributed with respect to the guide rail 2.

As shown in fig. 3, the first roller seat 200 includes a first base 5, a first bearing seat 6, and a first roller 7, the first base 5 is fixedly connected to the worktable 1001, the first bearing seat 6 is connected to the first base 5 through a guide shaft 8 and an adjusting bolt 9, the number of the guide shafts 8 is two, the guide shafts are vertically spaced, the guide shaft 8 and the first bearing seat 6 are in guiding fit through a ball bushing, and the first bearing seat 6 can move up and down along the guide shaft 8. Adjusting bolts 9 are vertically distributed and arranged between the two guide shafts 8, and the adjusting bolts 9 are used for locking the first bearing seat 6. The number of the first rollers 7 is two, the first rollers are rotatably matched on the first bearing seat 6 through bearings and bearing pins, and the two first rollers 7 are distributed at the upper end of the first bearing seat 6 at intervals. The second bearing seat includes a second base, a second bearing seat, and a second roller, and the second roller seat 300 is similar to the first roller seat 200 in structure, but is different in that the second bearing seat is fixedly connected to the second base. The second base is fixedly connected to the backing plate 3, and the second bearing seats and the first bearing seats are distributed in parallel at intervals. The excircle of the first idler wheel 7 and the excircle of the second idler wheel are flanges, so that the contact between the idler wheels and the crankshaft is point contact, and the positioning precision is improved.

According to the utility model discloses a location frock for bent axle, the bent axle is put on first gyro wheel seat 200 and second gyro wheel seat 300, realizes V type location through work piece self gravity and first gyro wheel 7 and the second gyro wheel that awaits measuring, can detect afterwards. When measuring crankshafts with different coaxial diameter sizes and positions, the distance between the second roller seat 300 and the first roller seat 200 is adjusted to a proper position by adjusting the screw rod 4 and then locked, and then the crankshaft support shaft diameter is arranged on the first roller seat 200 and the second roller seat 300 to complete positioning.

When crankshafts with different shaft diameter sizes are measured, the height of the first roller seat 200 to be lifted is calculated according to the shaft diameter size fall, then the adjusting bolt 9 is opened, the first bearing seat 6 is lifted upwards, a gauge block with the thickness corresponding to the calculated height value is placed between the first bearing seat 6 and the first base 5, then the adjusting bolt 9 is locked, the center height is adjusted, then the second roller seat 300 is moved to a proper position through the adjusting screw rod 4 according to the position of the crankshaft positioning support shaft diameter, the adjusting screw rod is locked, and then the crankshaft support shaft diameter is placed on the first roller seat 200 and the second roller seat 300 to complete positioning.

According to the utility model discloses a change the adjustment when making things convenient for the field operation, simple operation, reliable simultaneously for the location frock of bent axle has realized the bent axle location that not unidimensional diameter of axle supported.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning unless otherwise stated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.

Claims (8)

1. The utility model provides a location frock for bent axle which characterized in that includes:

the first roller seat and the second roller seat are arranged on the workbench and distributed at intervals, the second roller seat is provided with the moving assembly, and the moving assembly is used for driving the second roller seat to be close to or far away from the first roller seat.

2. The positioning tool for the crankshaft according to claim 1, wherein the first roller seat comprises a first base, a first bearing seat and two first rollers, the first base is fixedly connected to the workbench, the first bearing seat is connected with the first base through a ball bushing, a guide shaft and an adjusting bolt, the guide shaft and the adjusting bolt are vertically distributed, the first bearing seat and the guide shaft are in guiding fit through the ball bushing, the adjusting bolt is used for locking the first bearing seat, the first rollers are in rotating fit with the first bearing seat, and the two first rollers are distributed at the upper end of the first bearing seat at intervals.

3. The positioning tool for the crankshaft according to claim 2, wherein the second roller seat comprises a second base, a second bearing seat and two second rollers, the second base is fixedly connected to the moving assembly, the second bearing seat is arranged on the base, the second rollers are rotatably matched with the second bearing seat, and the two second rollers are distributed at the upper end of the second bearing seat at intervals.

4. The positioning tool for the crankshaft according to claim 3, wherein the outer circles of the first roller and the second roller are both flanges.

5. The positioning tool for the crankshaft according to claim 1, wherein the moving assembly comprises a guide rail, a base plate and a driving unit, the guide rail is arranged on the workbench, the base plate is arranged on the guide rail and moves along the extension direction of the guide rail, and the driving unit is used for controlling the movement of the base plate.

6. The positioning tool for the crankshaft according to claim 5, wherein the driving unit is an adjusting screw, a fixed block is slidably fitted on the adjusting screw, the fixed block is fixedly connected with the backing plate, and the adjusting screw and the guide rail are distributed in parallel.

7. The positioning tool for the crankshaft according to claim 5, wherein a sliding block is arranged at the bottom of the base plate and is in sliding fit with the guide rail to which the sliding block belongs.

8. The positioning tool for the crankshaft according to claim 5, wherein the guide rail is vertically distributed with the first roller seat.

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