CN203125212U - Tooling fixture body for quickly positioning three holes of rocker arm - Google Patents

Abstract

A rapid positioning fixture for three holes of a rocker arm, comprising a base, the base is provided with a first retraction hole and a second retraction hole set according to the angle and hole distance between the three holes of the rocker arm , the third retraction hole, the base is connected with a positioning pin and a V-shaped block for positioning the rocker arm parts on the three retracted holes, and the V-shaped block is arranged on the first retracted hole On the outside, the positioning pin is arranged on the outside of the connecting line between the first knife escape hole and the third knife escape hole, and a pressing plate for fixing the rocker parts is also connected to the outside of the second knife escape hole on the base. The utility model has the advantages of simple structure, convenient use, low production cost, and one-time clamping and positioning, which can repeatedly process parts, greatly saves the time for alignment, and improves the processing efficiency. Especially suitable for mass production process.

Description

A quick positioning fixture for three holes of rocker arm

technical field

The utility model relates to a fast positioning fixture for three holes of a rocker arm.

Background technique

The rocker arm parts, as shown in Figure 1, include a body 1' and three holes 2' arranged on the body 1', which are positioning elements for connecting, locating and fastening the lathe and the lead screw, and the rocker arm parts Machining accuracy will directly affect the motion accuracy of machine tool screw. Enterprises that produce machine tools need to manufacture a large number of rocker arm parts to match the mass-produced lathes. In particular, the angle and distance between the three holes on this part are the technical points of the rocker arm parts, but due to the irregular shape and small area of the rocker arm parts, it is difficult to drill holes during end milling or drilling. , the clamping and positioning are difficult, the work efficiency is very low, and every time the parts are replaced, it is necessary to find the correct positioning before drilling, which is quite troublesome, and also requires high-level technical personnel, so that the company's The increase in investment is very uneconomical.

Contents of the invention

The purpose of this utility model is to provide a fast and accurate positioning of the rocker arm parts, which is convenient to clamp, not easy to deform, and can greatly save a lot of time for alignment and positioning, greatly shorten the processing time, and improve the working efficiency. Efficient and fast positioning tooling fixtures for the three holes of the rocker arm.

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

A quick positioning fixture for the three holes of the rocker arm is characterized in that it includes a base, and the base is provided with a first retraction hole and a second hole set according to the angle and hole distance between the three holes of the rocker arm. Two withdrawal holes and the third withdrawal hole, the base is connected with a positioning pin and a V-shaped block for positioning the rocker arm parts on the three withdrawal holes, and the V-shaped block is arranged on the first The outer side of the retraction hole, the positioning pin is arranged on the outside of the connection line between the first retraction hole and the third retraction hole, and the base is also connected with a pressing plate for fixing the rocker arm parts on the outside of the second retraction hole .

Further, the base is a rectangular structure.

Further, the central axes of the first retraction hole, the second retraction hole, and the third retraction hole are all arranged parallel to the side surfaces of the base.

Further, the V-shaped block is fixed on the base by screws.

Further, the positioning pin is interference-connected to the base.

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

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

1. According to the set position, correctly install the positioning components of the V-shaped block, the pressure plate and the positioning pin on the base. During the installation process, pay attention to the parallel technical requirements of the two coordinate values of the three holes and the two sides of the base.

2. Put the T-shaped nut into the T-shaped groove of the machine tool, install the quick positioning fixture described in the utility model correctly on the workbench of the machine tool, and use the dial gauge to dial the meter in the quick positioning tool described in the utility model. The positioning tool clamp is measured on two measuring reference planes, so that the rapid positioning tool clamp described in the utility model can meet the verticality requirements of the longitudinal direction and the transverse direction.

3. After the quick positioning fixture described in the utility model is specifically installed, as long as the blank of the rocker arm part is put into the corresponding position, the locking platen can be operated, and the three holes of the rocker arm can be processed with a processing tool up.

The beneficial effects of the utility model are: simple structure, convenient use, low production cost, and one-time clamping and positioning, parts can be repeatedly processed, a large amount of time for alignment is saved, and processing efficiency is improved. Especially suitable for mass production process.

Description of drawings

Fig. 1 is the structural representation of rocker arm parts;

Fig. 2 is the top view of the utility model;

Fig. 3 is a cross-sectional view of the utility model along A-A in Fig. 2;

Fig. 4 is the structural representation that the utility model uses;

Fig. 5 is a longitudinal sectional view of the utility model in use state.

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 2-5, a quick positioning fixture for the three holes of the rocker arm includes a base 1, and the base 1 is provided with a first relief set according to the angle and hole distance between the three holes of the rocker arm. Knife hole 21, the second knife hole 22, the third knife hole 23, the base 1 is connected with a positioning pin 3 and a V-shaped block for positioning the rocker arm part 7 on the three knife hole 4. The V-shaped block 4 is arranged on the outside of the first retraction hole 21, the positioning pin 3 is arranged on the outside of the connecting line between the first retraction hole 21 and the third retraction hole 23, and the base 1 is on the The outer side of the second retraction hole 22 is also connected with a pressing plate 5 for fixing the rocker arm part 7 .

The base 1 is a rectangular structure.

The central axes of the first knife escape hole 21 , the second knife escape hole 22 and the third knife escape hole 23 are all arranged parallel to the side of the base 1 .

The V-shaped block 4 is fixed on the base 1 by screws 6 .

The positioning pin 3 is interference-connected on the base 1 .

The pressing plate 5 is connected to the base 1 by screws 6 .

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

1. According to the set position, correctly install the V-shaped block 4, the pressure plate 5, and the positioning pin 3 on the base 1. During the installation process, pay attention to the two coordinate values of the three holes and the two sides of the base 1. Parallel technical requirements.

2. Put the T-shaped nut into the T-groove 10 of the machine tool, install the quick positioning fixture described in the utility model correctly on the workbench 9 of the machine tool, and use the dial gauge to make the meter as described in the utility model. The rapid positioning tool clamp is measured on two measuring reference planes, so that the quick positioning tool clamp described in the utility model can meet the verticality requirements of the vertical direction and the horizontal direction.

3. After the quick positioning fixture described in the utility model is specifically installed, as long as the blank of the rocker arm part 7 is put into the corresponding position, the locking platen 5 can be operated, and the rocker arm can be three-positioned with the processing tool 8. hole processing.

Claims (6)

1. quick positioning tool clamp body that is used for rocking arm three holes, it is characterized in that: comprise a base, described base is provided with the first withdrawing hole that arranges according to the angle between rocking arm three holes and pitch-row, the second withdrawing hole, the 3rd withdrawing hole, be connected with on the described base for the alignment pin that is used and the V-block that the rocking arm part are positioned on three withdrawing holes, described V-block is arranged on the outside in the first withdrawing hole, described alignment pin is arranged on the outside of the first withdrawing hole and the 3rd withdrawing hole line, also is connected with the pressing plate that the rocking arm part is fixing on the described base in the outside in the second withdrawing hole.

2. a kind of quick positioning tool clamp body for rocking arm three holes according to claim 1, it is characterized in that: described base is a rectangular body structure.

3. a kind of quick positioning tool clamp body for rocking arm three holes according to claim 1 and 2 is characterized in that: the central shaft in the described first withdrawing hole, the second withdrawing hole, the 3rd withdrawing hole all with the parallel sided setting of base.

4. a kind of quick positioning tool clamp body for rocking arm three holes according to claim 3, it is characterized in that: described V-block is fixed on the base by screw.

5. a kind of quick positioning tool clamp body for rocking arm three holes according to claim 4, it is characterized in that: described alignment pin interference is connected on the base.

6. a kind of quick positioning tool clamp body for rocking arm three holes according to claim 5, it is characterized in that: described pressing plate is connected on the base by screw.

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