CN203125210U - Tooling fixture for machining double kidney-shaped holes of bracket - Google Patents

Abstract

A tooling fixture for processing the double-eye waist holes of a bracket, comprising a plane base, the base is provided with a first waist eye hole, a second waist hole set according to the angle and hole distance between the two eyes waist holes of the bracket and the reference positioning hole. Two waist eye holes and reference pin holes, a reference pin is connected to the reference pin hole, and a positioning pin that is used in conjunction with the reference pin to position the support is connected to the base on the outside of the line connecting the first waist eye hole and the reference pin hole, A pressing plate for pressing the bracket on the base is also connected to the outer side of the connecting line between the first waist eye hole and the reference pin hole on the base. The utility model has the advantages of simple structure, convenient use, low production cost, and once clamping and positioning, parts can be repeatedly processed, a lot of time for alignment is saved, processing efficiency is improved, and the processing accuracy of parts is improved. , the operator's skill requirements are not high.

Description

A fixture for processing double-eye waist holes of brackets

technical field

The utility model relates to a tooling fixture for processing double-eye waist holes of a bracket.

Background technique

The bracket in the CNC machine tool, as shown in Fig. 1 and Fig. 2, includes a body 1', and the body 1' is provided with two eyes waist holes 2' and a reference positioning hole 3'. The characteristic is that the waist holes 2' for both eyes are the holes to be processed. On the irregular contour surface, the waist holes 2' for the eyes and the reference positioning hole 3' are parallel to each other, and have a high perpendicularity requirement with the end face, and There are high dimensional accuracy requirements. Incorrect clamping and positioning will increase the amount of deformation, and the dimensional accuracy will not meet the requirements, making it difficult to process on the drilling machine. Incorrect clamping will cause deformation and fail to meet the technical requirements after processing, and , The processing efficiency is very low, the processing cycle and cost are increased, and the technical level requirements for the processor are also high, which increases the investment of the enterprise, which is very uneconomical.

Contents of the invention

The purpose of the utility model is to provide a fast and accurate fast positioning of the bracket, convenient clamping, not easy to deform, and can greatly save a lot of time for alignment and positioning, greatly shorten the processing time, and improve the work efficiency. Efficient tooling fixture for processing the double-eye waist hole of the bracket.

For reaching the purpose of the invention, the technical scheme adopted by the utility model is:

A tooling fixture for processing the double-eye waist holes of a bracket, which is characterized in that it includes a plane base, and the base is provided with a first hole distance set according to the angle and hole distance between the two eyes waist holes of the bracket and the reference positioning holes. Waist eye hole, second waist eye hole, datum pin hole, a datum pin is connected on the datum pin hole, on the outside of the first waist eye hole and the datum pin hole connecting line is connected with the datum pin and used to position the support. The locating pin, the base is also connected to the outside of the line connecting the first waist eye hole and the reference pin hole to press the bracket on the base.

Further, the pressing plate is connected to the base through screws.

The utility model locates the support through the reference pin and the positioning pin, and presses the support with a pressing plate, so that the double-eye waist hole of the support can be processed with a drill and expander.

The working process of the present utility model is as follows:

1. According to the set position, correctly install the reference pin, positioning pin and pressure plate on the base.

2. Put the T-shaped nut into the T-shaped slot of the machine tool, correctly install the tooling fixture for processing the double-eye waist hole of the support described in the utility model on the workbench of the machine tool, and use the dial indicator to make a meter in the utility model. The two measurement reference planes of the tooling fixture for processing the double-eye waist hole of the bracket described in the new model are measured, so that the tooling fixture for processing the double-eye waist hole of the bracket described in the utility model meets the verticality requirements of the vertical and horizontal directions.

3. After the installation of the jig for processing the double-eye waist hole of the bracket described in the utility model is completed, insert the reference positioning hole in the bracket into the reference pin, and rotate the bracket so that one reference side of the bracket touches the positioning pin, so as to Determine the exact processing position of the bracket, and then press the bracket with a pressure plate.

4. Use a drill and reamer to mill the double-eye waist holes of the bracket. After the processing is completed, the pressing plate is released, and the bracket is taken out, and the whole process is completed.

5. Repeat the above steps 3 and 4 to operate on the next part to complete the mass production of the bracket.

The beneficial effects of the utility model: simple structure, convenient use, low production cost, and one-time clamping and positioning, parts can be repeatedly processed, a lot of time for alignment is saved, processing efficiency is improved, and the processing accuracy of parts is improved. , the operator's skill requirements are not high. Especially suitable for mass production process.

Description of drawings

Fig. 1 is the structural representation of support;

Fig. 2 is a sectional view along the direction A'-A' in Fig. 1 .

Fig. 3 is the top view of the utility model;

Fig. 4 is a sectional view of the utility model along A-A in Fig. 3;

Fig. 5 is a top view of the structure used by the utility model;

Fig. 6 is a cross-sectional view along the B-B direction in Fig. 5 when the utility model is in use.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments, but the utility model is not limited to these specific embodiments. Those skilled in the art should realize that the present invention covers all alternatives, improvements and equivalents that may be included within the scope of the claims.

Referring to Figures 3-6, a tooling fixture for processing the double-eye waist holes of a bracket includes a flat base 1, and the base 1 is provided with angles and hole distances between the two eyes waist holes of the bracket and the reference positioning holes. The first waist eye hole 2, the second waist eye hole 3, and the reference pin hole are provided. A reference pin 4 is connected to the reference pin hole, and the base 1 is connected to the outer side of the connecting line between the first waist eye hole 2 and the reference pin hole. There is a locating pin 5 used in conjunction with the reference pin 4 to position the bracket, and a pressing plate 6 for pressing the bracket on the base 1 is also connected outside the connecting line between the first waist eye hole 2 and the reference pin hole on the base 1 .

The pressing plate 6 is connected to the base 1 by screws.

The utility model locates the support 7 by the reference pin 4 and the positioning pin 5, presses the support 7 with the pressing plate 6, and just can process the double eye waist hole of the support 7 with the drill expanding cutter.

The working process of the present utility model is as follows:

1. According to the set position, correctly install the reference pin 4, the positioning pin 5, and the pressure plate 6 on the base.

2. Put the T-shaped nut into the T-shaped groove of the machine tool, correctly install the tooling fixture for processing the double-eye waist hole of the bracket described in the present invention on the workbench 8 of the machine tool, and use the dial indicator to make a meter on the machine tool. The tooling fixture for processing the double-eye waist hole of the bracket described in the utility model is measured on two measuring reference planes, so that the tooling fixture for processing the double-eye waist hole of the bracket described in the utility model meets the verticality requirements of the vertical and horizontal directions.

3. After the installation of the tooling fixture for processing the double-eye waist hole of the bracket described in the utility model is completed, the reference positioning hole in the bracket 7 is inserted into the reference pin 4, and the bracket 7 is rotated so that a reference side of the bracket 7 touches Locating pin 5, to determine the accurate machining position of support 7, then presses support with pressing plate 6.

4. Mill the double-eye waist hole of the support 7 with the drill expander 9 and get final product. After the processing is finished, the pressing plate 6 is released, the support 7 is taken out, and the whole process is completed.

5. Repeat the above steps 3 and 4 to complete the mass production of the bracket 7 by operating on the next part.

Claims (2)

1. frock clamp that is used for processing support eyes waist hole, it is characterized in that: comprise a flat base, described base is provided with the first either side of the small of the back hole according to two eyes waist holes of support and the angle between the baseline positioning hole and pitch-row setting, the second either side of the small of the back hole, the benchmark pin-and-hole, be connected with a reference pins on the described benchmark pin-and-hole, be connected with in the outside of the first either side of the small of the back hole and benchmark pin-and-hole line on the described base with reference pins and be used alignment pin with the support location, also be connected with in the outside of the first either side of the small of the back hole and benchmark pin-and-hole line on the described base support is pressed on pressing plate on the base.

2. according to claim 1 a kind of for the frock clamp of processing support eyes waist hole, it is characterized in that: described pressing plate is connected with base by screw.

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