CN201960412U

CN201960412U - Fixture for grinding crank throw of single throw crankshaft

Info

Publication number: CN201960412U
Application number: CN2010206498893U
Authority: CN
Inventors: 李体仁; 杨云
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-09-07
Anticipated expiration: 2020-12-07

Abstract

The utility model provides a fixture for grinding a crank throw of a single throw crankshaft, which comprises a cuboid-shaped base, wherein the base is provided with a center hole; a positioning hole is additionally arranged in a direction parallel to the radial direction of the center hole; the center distance from the center hole to the positioning hole is equal to the distance from the crank throw in the single throw crankshaft to a main shaft; the base is additionally provided with a through groove vertical to the center connecting line of the positioning hole and the centre hole; the positioning hole passes through the boundary of the base through the through groove; and an opening locking device is arranged in the through groove. By using the fixture, the crank throw of the crankshaft can be rapidly clamped and positioned, meanwhile, the structure is simple, the adapting range is wide, the manufacturing is convenient and rapid, the period is short, the cost is low, the requirement for fixture operators is low, and the fixture can be rapidly replaced after being worn and is particularly suitable for grinding a middle/small amount of crank throws of single throw crankshafts.

Description

The anchor clamps of a kind of one-throw crankshaft crank throw grinding

Technical field

The utility model belongs to machinery manufacturing technology field, relates to the anchor clamps that use in a kind of process, relates in particular to the anchor clamps of a kind of one-throw crankshaft crank throw grinding.

Background technology

One-throw crankshaft is the strength member in the slider-crank mechanism.One-throw crankshaft processing adopts the method for grinding behind the first car to process usually.After all cylindricalo grinding,, on cylindrical grinder, be that pivot carries out grinding to crank throw with the axis of crank throw with existing cylindrical (axle journal) location.To the grinding of crank throw, generally adopt special fixture to finish.The design accuracy height of special fixture, mechanism's complexity, manufacturing cycle are long, the cost height.

Summary of the invention

In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide the anchor clamps of a kind of one-throw crankshaft crank throw grinding, can be fast with the crankshaft crank clamping and positioning, this clamp structure is simple, adapt to extensively, easily manufactured, quick, the cycle is short, cost is low, to the fixture operation personnel require low; Change after the clamp wear fast, in being particularly suitable for, the one-throw crankshaft crank throw grinding of small lot.

In order to achieve the above object, the technical solution adopted in the utility model is:

The anchor clamps of a kind of one-throw crankshaft crank throw grinding, the pedestal 5 that comprises rectangular shape, centre bore 2 is arranged on the pedestal 5, also has locating hole 1 with the radial parallel of centre bore 2, the centre distance of centre bore 2 and locating hole 1 is the distance of crank throw and main shaft in the one-throw crankshaft, also have and locating hole 1 through slot 6 vertical with the line of centres of centre bore 2 on the pedestal 5, locating hole 1 connects by the border of through slot 6 with pedestal 5, configuration opening locking device 3 in the through slot 6.Described centre bore 2 is the Type B hole.Described opening locking device 3 is the hexagon socket screw.The center of described centre bore 2 and locating hole 1 is all on the axis of its place face.

The utility model compared with prior art has the following advantages:

1) accurate positioning clamps effective;

2) simple in structure, easily manufactured, with low cost;

3) use simple, to the fixture operation personnel require low;

4) go wrong and be convenient to change, in being particularly suitable for, the one-throw crankshaft crank throw grinding of small lot.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is user mode figure of the present utility model.

Fig. 4 clamps rear side view for the utility model.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further details.

Shown in Figure 2 as Fig. 1, the utility model is the anchor clamps of a kind of one-throw crankshaft crank throw grinding, the pedestal 5 that comprises rectangular shape, centre bore 2 is arranged on the pedestal 5, centre bore 2 is the Type B hole, also has locating hole 1 with the radial parallel of centre bore 2, the center of centre bore 2 and locating hole 1 is all on the axis of its place face, the centre distance of centre bore 2 and locating hole 1 is the distance of crank throw and main shaft in the one-throw crankshaft, also have and locating hole 1 through slot 6 vertical on the pedestal 5 with the line of centres of centre bore 2, locating hole 1 connects by the border of through slot 6 with pedestal 5, configuration opening locking device 3 in the through slot 6.Described opening locking device 3 is the hexagon socket screw.

The locating hole 1 of these anchor clamps cooperates with the axle journal of one-throw crankshaft, adopts opening locking device 3 with hole on the anchor clamps and crankshaft journal locking, and the locating hole 1 on the anchor clamps equals the distance of crank throw to main shaft to the distance of centre bore 2.The back dead centre of cylindrical grinder is positioned at the Type B centre bore on the anchor clamps, carries out the crank throw grinding, has guaranteed the distance of crank throw to main shaft.

Shown in Figure 4 as Fig. 3, during use, two one covers of these anchor clamps, the locating hole 1 of anchor clamps cooperates with the axle journal of bent axle respectively, is placed on the massive plate; Rotate crank throw 4, measure the distance L of crank throw 4 cylindricals simultaneously,, represent that crank throw 4 is coaxial with the centre bore 2 of anchor clamps when the L of both sides size equates to the anchor clamps dual-side.Tighten the hexagon socket screw, the lock opening device.Anchor clamps and bent axle connect as one, and withstand the centre bore 2 of anchor clamps by the front and back back dead centre of cylindrical grinder, and anchor clamps and bent axle are positioned on the grinding machine.This clamp structure is simple, adapts to extensively, easily manufactured, quick, and the cycle is short, and cost is low, to the fixture operation personnel require low; Change after the clamp wear fast, in being particularly suitable for, the one-throw crankshaft crank throw grinding of small lot.

Claims

1. the anchor clamps of one-throw crankshaft crank throw grinding comprise the pedestal (5) of rectangular shape it is characterized in that centre bore (2) is arranged on the pedestal (5), also have locating hole with the radial parallel of centre bore (2)

(1), the centre distance of centre bore (2) and locating hole (1) is the distance of crank throw and main shaft in the one-throw crankshaft, pedestal (5) is gone up the vertical through slot (6) of the line of centres that also has with locating hole (1) and centre bore (2), locating hole (1) connects by the border of through slot (6) with pedestal (5), configuration opening locking device (3) in the through slot (6).

2. the anchor clamps of a kind of one-throw crankshaft crank throw according to claim 1 grinding is characterized in that, described centre bore (2) is the Type B hole.

3. the anchor clamps of a kind of one-throw crankshaft crank throw according to claim 1 grinding is characterized in that, described opening locking device (3) is the hexagon socket screw.

4. the anchor clamps of a kind of one-throw crankshaft crank throw according to claim 1 grinding is characterized in that, the center of described centre bore (2) and locating hole (1) is all on the axis of its place face.