CN203622010U - Quick clamping and positioning device for machining transmission connecting lever - Google Patents

Abstract

The utility model discloses a fast clamping and positioning device for transmission crank arm processing, which belongs to the technical field of high-voltage switchgear, and comprises several crank arm processing units A and/or crank arm processing units B arranged on the installation base plate. Both the crank arm processing unit A and the crank arm processing unit B are provided with a positioning unit for positioning, a number of platen units for fixing the crank arm and an adjustable support for adjusting the center of gravity of the crank arm. The utility model is provided with parts used for positioning, fixing and adjusting the center of gravity of the crank arm during processing on the installation base plate of the crank arm, so that the crank arm to be processed can be accurately positioned on the installation base plate, thereby effectively solving the problem of traditional processing. The problem of long positioning time and positioning deviation in the process improves the processing efficiency of the crank arm, and at the same time ensures the processing accuracy of the crank arm to meet the transmission requirements.

Description

A Quick Clamping and Positioning Device for Processing of Transmission Knuckle Arm

technical field

The utility model belongs to the technical field of high-voltage switchgear, and in particular relates to a fast clamping and positioning device for processing a transmission crank arm.

Background technique

The crank arm is a transmission part in high-voltage circuit breaker products. The machining accuracy of this part will have a certain influence on the transmission. This requires that the crank arm must be positioned accurately and clamped reliably during processing.

The current processing method is to prop up the blank of the crank arm with a pad and place it on the worktable of the machining center, and completely rely on the manual adjustment of the operator to meet the requirements of machining positioning. The whole process is repeated many times, takes a long time, and the positioning is biased. , resulting in low processing efficiency and low pass rate.

Utility model content

In order to overcome the above-mentioned defects in the prior art, the purpose of this utility model is to provide a quick clamping and positioning device for the processing of the transmission crank arm. The problem of long and inaccurate positioning.

The utility model is realized through the following technical solutions:

A quick clamping and positioning device for transmission crank processing, comprising several crank processing units A and/or crank processing units B arranged on a mounting base plate, said crank processing unit A and crank processing unit B All are provided with a positioning unit for positioning, several platen units for fixing the crank arm and adjustable supports for adjusting the center of gravity of the crank arm.

The positioning unit of the crank arm processing unit A includes a pair of limit posts arranged symmetrically along the main arm of the crank arm, and a stopper arranged at the end of the follower arm of the crank arm.

The positioning unit of the crank arm processing unit B includes a large positioning pin and a small positioning pin respectively arranged at both ends of the main arm of the crank arm.

The arrangement of the large positioning pin and the small positioning pin corresponds to the position of the hole on the main arm processed by the crank arm processing unit A.

The pressure plate unit includes a pressure plate, a pressure plate support for supporting the pressure plate, and a stud for fixing the pressure plate on the installation base.

The adjustable support is arranged on the central axis of the active arm of the crank arm.

Hanging rings are also arranged at the four corners of the installation base plate.

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model is provided with parts used for positioning, fixing and conditional center of gravity during the processing of the crank arm on the installation base plate of the crank arm, so that the crank arm to be processed can be accurately positioned on the installation base plate, thereby effectively solving the problem of traditional processing. The problem of long positioning time and positioning deviation in the process improves the processing efficiency of the crank arm, and at the same time ensures the processing accuracy of the crank arm to meet the transmission requirements.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the adjustable support of the crank arm processing unit A of the present invention;

Fig. 3 is a schematic diagram of the adjustable support of the crank arm processing unit B of the present invention.

Among them: 1 is the installation base plate; 2 is the stopper; 3 is the limit column; 4 is the pressure plate pillar; 5 is the stud; 6 is the pressure plate; 7 is the adjustable support; 8 is the large positioning pin; 9 is the small positioning pin; 10 is a suspension ring; 11 is a driving arm; 12 is a driven arm.

Detailed ways

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

Referring to Figures 1 to 3, the crank arm processed in this embodiment includes a main arm 11 and a driven arm 12, which are in a "T"-shaped structure; Several crank arm processing units A and/or crank arm processing units B on the base plate 1, the crank arm processing unit A and the crank arm processing unit B are all provided with a positioning unit for positioning, and are used to fix several crank arm processing units. A platen unit and an adjustable support 7 for adjusting the center of gravity of the crank arm.

The positioning unit of the crank arm processing unit A includes a pair of limit posts 3 symmetrically arranged along the active arm 11 of the crank arm, and a stopper 2 arranged at the end of the follower arm 12 of the crank arm; the positioning of the crank arm processing unit B The unit includes a large positioning pin 8 and a small positioning pin 9 respectively arranged at both ends of the active arm 11 of the crank arm; the adjustable support 7 is set on the central axis of the active arm 11 of the crank arm.

The platen unit includes a platen 6 and a platen pillar 4 supporting the platen, and a stud 5 for fixing the platen on the mounting base 1 , and four corners of the mounting base 1 are also provided with rings 10 for lifting the mounting base 1 .

The fast clamping and positioning device for processing the transmission crank arm of the utility model, when in use:

Referring to Fig. 2, for the crank arm processing unit A, a plane matching the shape of the crank arm is machined on the two limit posts, and a plane is also machined on the stopper as an auxiliary limit surface. The operator only needs to place the crank arm blank on the bottom plate of the tooling and push it left and right a few times to ensure that the shape of the crank arm fits with the plane of the limit column to accurately position. In order to ensure the stability of the center of gravity of the crank arm, an adjustable support is added.

Referring to Figure 3, for the crank arm processing unit B, its positioning device is composed of a large positioning pin and a small positioning pin, and two of the holes processed in the crank arm processing unit A are used as positioning reference holes, and the operator only needs to Put the corresponding hole on the crank arm on the positioning pin of the tooling to accurately position, and the positioning pin is in sliding fit with the hole. Similarly, in order to ensure the stability of the center of gravity of the crank arm, an adjustable support is also added.

Claims (7)

1. the Rapid clamping positioning device of a transmission crank arm processing, it is characterized in that, comprise several connecting lever machining cell A and/or the connecting lever machining cell B that are arranged on mounting base (1), described connecting lever machining cell A and connecting lever machining cell B are provided with the positioning unit for locating, for several pressing plate unit of fixing connecting lever and for regulating the adjustable support (7) of connecting lever center of gravity.

2. the Rapid clamping positioning device of transmission crank arm processing according to claim 1, it is characterized in that, the positioning unit of described connecting lever machining cell A comprises the symmetrically arranged a pair of limited post of master arm (11) (3) along connecting lever, and is arranged on the block (2) of slave arm (12) end of connecting lever.

3. the Rapid clamping positioning device of transmission crank arm processing according to claim 1, it is characterized in that, the positioning unit of described connecting lever machining cell B comprises slightly (8) and slightly (9), little location, large location of master arm (11) end, two ends that is separately positioned on connecting lever.

4. the Rapid clamping positioning device of transmission crank arm processing according to claim 3, it is characterized in that, slightly slightly the setting of (9) is corresponding with the position in the hole on the master arm (11) processing through connecting lever machining cell A (8) and little location in described large location.

5. the Rapid clamping positioning device of transmission crank arm processing according to claim 1, it is characterized in that, described pressing plate unit comprises pressing plate (6) and supports the pressing plate pillar (4) of pressing plate, and pressing plate is fixed on to the double-screw bolt (5) on mounting base (1).

6. the Rapid clamping positioning device of transmission crank arm processing according to claim 1, is characterized in that, described adjustable support (7) is arranged on the axis of master arm (11) of described connecting lever.

7. according to the Rapid clamping positioning device of the transmission crank arm processing described in any one in claim 1～6, it is characterized in that, four jiaos of places of described mounting base (1) are also provided with suspension ring (10).

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