CN203679801U

CN203679801U - Double-floating positioning mechanism with locking mechanism

Info

Publication number: CN203679801U
Application number: CN201320867748.2U
Authority: CN
Inventors: 闵信来; 卢红印; 刘锦华
Original assignee: Wuxi Best Precise Machine Co Ltd
Current assignee: Wuxi Best Precise Machine Co Ltd
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2014-07-02
Anticipated expiration: 2023-12-26

Abstract

The utility model relates to a double-floating positioning mechanism with a locking mechanism. The double-floating positioning mechanism with the locking mechanism comprises an upper basal body, wherein an oscillating lever is hinged below the upper basal body, a rotary seat is fixed below the upper basal body, the oscillating lever is hinged to the rotary seat through a rotary shaft, and the oscillating lever can swing by taking the rotary shaft as a center; two slide rods arranged in parallel in the vertical direction are in sliding fit with the upper basal body, sliding sleeves are arranged between the slide rods and the upper basal body, the sliding sleeves are fixed on the upper basal body, the slide rods are in sliding fit with the interiors of the sliding sleeves, and the lower ends of the slide rods are respectively connected to the two ends of the oscillating lever; the double-floating positioning mechanism with the locking mechanism is characterized in that a lower baseplate is mounted below the oscillating lever, two support cylinders are mounted on the lower baseplate, and supporting heads are mounted at the end parts of the piston rods of the support cylinders. According to the utility model, the floating support cylinders are respectively adopted, so that the distance from the supporting heads to the oscillating lever can be ensured. Therefore, the floating displacement of the floating positioning mechanism can be ensured, the stability during positioning is improved, and workpiece overturn is effectively prevented.

Description

There are two floating positioning devices of retaining mechanism

Technical field

The utility model relates to a kind of detent mechanism, especially a kind of two floating positioning devices with retaining mechanism.

Background technology

Patent application CN:201220618829 discloses a kind of pair of floating positioning device, comprise matrix, the below of matrix is hinged with swing arm, is sliding combined with the sliding bar of two parallel vertical layouts on matrix, and the lower end of two sliding bars is connected to the two ends of swing arm.This pair of floating positioning device replaces two points that float that thirdly adopt of three-point positioning mechanism, and the stability while having improved location, can effectively prevent that workpiece from toppling, and improved positioning precision.But facts have proved, two anchor points of this floating positioning device add man-hour at workpiece, are subject to the effect of cutting force that upper and lower play can occur, and processing is unstable, and the machining accuracy of workpiece is had a significant impact.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of two floating positioning devices with retaining mechanism are provided, and has increased retaining mechanism, realizes the function of stationary anchor points, has solved the problem of play, thereby has improved the machining accuracy of product.

The technical scheme providing according to the utility model, described in there are two floating positioning devices of retaining mechanism, comprise matrix, the hinged swing arm in below of upper matrix, the fixing revolving bed in below of upper matrix, swing arm is hinged on revolving bed by gyroaxis, and swing arm can swing centered by gyroaxis; Two sliding bars that vertically be arranged in parallel that are slidably matched on matrix on described, arrange sliding sleeve between sliding bar and upper matrix, and sliding sleeve is fixed on matrix, and sliding bar is slidably fitted in sliding sleeve, and the lower end of two sliding bars is connected to the two ends of swing arm; It is characterized in that: infrabasal plate is installed below described swing arm, two support cylinders are installed on infrabasal plate, supporting member is installed in the piston rod end of support cylinder.

The two ends of described sliding sleeve arrange respectively the first dust cap and the second dust cap, and the first dust cap and the second dust cap are separately fixed on matrix, between the first dust cap and the second dust cap and sliding bar, dust ring are set respectively.

The two ends of described swing arm arrange respectively T-shaped groove, and the lower end of sliding bar is embedded in T-shaped groove.

The utlity model has following advantage: (1) the utility model adopts respectively float support oil cylinder, can guarantee the distance of supporting member to swing arm, thereby guarantee the amount of floating of floating positioning device, the stability while having improved location, more can effectively prevent that workpiece part from toppling; (2) the utility model adopts respectively locked two the unsteady points of float support oil cylinder, realizes the function of stationary anchor points, has solved the problem that is subject to the effect of cutting force that upper and lower play can occur, thereby has improved the machining accuracy of product.

Accompanying drawing explanation

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

Fig. 2 is the schematic diagram of detent mechanism described in the utility model in locking machining state.

The specific embodiment

Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.

As shown in Fig. 1～Fig. 2: as described in there is retaining mechanism two floating positioning devices comprise sliding bar 1, dust ring 2, the first dust cap 3, upper matrix 4, sliding sleeve 5, the second dust cap 6, revolving bed 7, swing arm 8, gyroaxis 9, supporting member 10, support cylinder 11, infrabasal plate 12 etc.

As shown in Figure 1, the utility model comprises matrix 4, the hinged swing arm 8 in below of upper matrix 4, and the fixing revolving bed 7 in below of upper matrix 4, swing arm 8 is hinged on revolving bed 7 by gyroaxis 9, and swing arm 8 can swing centered by gyroaxis 9; Two sliding bars that vertically be arranged in parallel 1 are slidably matched on matrix 7 on described, between sliding bar 1 and upper matrix 4, sliding sleeve 5 is set, sliding sleeve 5 is fixed on matrix 4, sliding bar 1 is slidably fitted in sliding sleeve 5, the two ends of sliding sleeve 5 arrange respectively the first dust cap 3 and the second dust cap 6, the first dust cap 3 and the second dust cap 6 are separately fixed on matrix 4, between the first dust cap 3 and the second dust cap 6 and sliding bar 1, dust ring 2 are set respectively, and dust ring 2 enters for preventing foreign matter; The lower end of described two sliding bars 1 is connected to the two ends of swing arm 8, and the two ends of swing arm 8 arrange respectively T-shaped groove, and the lower end of sliding bar 1 is embedded in T-shaped groove;

Infrabasal plate 12 is installed below described swing arm 8, two support cylinders 11 are installed on infrabasal plate 12, supporting member 10 is installed in the piston rod end of support cylinder 11; When support cylinder 11 is not worked, supporting member 10 has certain distance with swing arm 8.

Operation principle of the present utility model: after processing work is arranged on detent mechanism described in the utility model, the sliding bar 1 on left side or right side contacts with workpiece, under Action of Gravity Field, sliding bar 1 is at the interior down sliding of sliding sleeve 5, sliding bar 1 drives swing arm 9 to swing, one end perk of swing arm 9, one end contacts with supporting member 10, thereby controls the scope swinging; When workpiece enters poised state, after sliding bar 1 is no longer mobile, support cylinder 11 rises supporting member 10 is contacted with swing arm 8, thereby locking sliding bar 1(as shown in Figure 2).

The utility model is take the principle of six-point fixing of fixture as basis, and three points determine a plane, thereby limit this plane; After two fixing points are determined, limit a plane, need another fixing point, or function is the mechanism of a fixing point.

Claims

1. one kind has two floating positioning devices of retaining mechanism, comprise matrix (4), the hinged swing arm in below (8) of upper matrix (4), the fixing revolving bed (7) in below of upper matrix (4), it is upper that swing arm (8) is hinged on revolving bed (7) by gyroaxis (9), and swing arm (8) can swing centered by gyroaxis (9); Two sliding bars that vertically be arranged in parallel (1) are slidably matched on matrix (7) on described, between sliding bar (1) and upper matrix (4), sliding sleeve (5) is set, sliding sleeve (5) is fixed on matrix (4), sliding bar (1) is slidably fitted in sliding sleeve (5), and the lower end of two sliding bars (1) is connected to the two ends of swing arm (8); It is characterized in that: infrabasal plate (12) is installed in the below at described swing arm (8), at upper two support cylinders (11) of installing of infrabasal plate (12), supporting member (10) is installed in the piston rod end of support cylinder (11).

2. two floating positioning devices with retaining mechanism as claimed in claim 1, it is characterized in that: the two ends of described sliding sleeve (5) arrange respectively the first dust cap (3) and the second dust cap (6), it is upper that the first dust cap (3) and the second dust cap (6) are separately fixed at matrix (4), between the first dust cap (3) and the second dust cap (6) and sliding bar (1), dust ring (2) is set respectively.

3. two floating positioning devices with retaining mechanism as claimed in claim 1, is characterized in that: the two ends of described swing arm (8) arrange respectively T-shaped groove, the lower end of sliding bar (1) is embedded in T-shaped groove.