CN203171352U - Machining fixture for radial holes evenly distributed in circumference - Google Patents

Abstract

The utility model discloses a machining fixture for radial holes evenly distributed in a circumference, and relates to a hole machining fixture. The machining fixture for the radial holes evenly distributed in the circumference comprises a fixture body and a pin roll, wherein the pin roll is installed on the fixture body through threads, a nut is installed on the pin roll on one side of the fixture body, an index plate is installed on the pin roll on the other side of the fixture body, a drill plate is fixed at the top end of the fixture body, a drill bushing is arranged on the drill plate, blind holes are evenly distributed in the index plate along the circumference, blind holes are formed in the position, combined with the index plate, of the lower portion of the fixture body, a spring and a steel ball are installed in the blind holes formed in the fixture body, the diameter of the steel ball is larger than that of each blind hole in the index plate, a workpiece is correspondingly installed on the pin roll arranged below the drill bushing, and is positioned through the end face of the index plate, the workpiece and the index plate are fixed on the pin roll through a locking nut, and a clamping plate is installed between the locking nut and the workpiece. The machining fixture for the radial holes evenly distributed in the circumference has the advantages of being capable of carrying out accurate positioning on the workpiece, enabling holes which need to be drilled in the workpiece to coincide with the drill plate in position, ensuring machining quality of the holes in the workpiece, and improving machining efficiency.

Description

A jig for machining radial holes uniformly distributed around the circumference

technical field

The utility model relates to a hole processing jig, in particular to a radial hole processing jig uniformly distributed on the circumference;

It is used for the machining of the radial hole of the upper ring die of the straw briquetting machine.

Background technique

For the biomass straw briquetting machine, the commonly used structures mainly include spiral type, ring mode and flat mode. For the ring mode structure, it is necessary to manufacture a circular die, and process evenly distributed through holes in the radial direction of the die, as the discharge holes, and the crushed straw is extruded in such through holes. In the processing of these holes, it is necessary to drill a lot of holes evenly distributed around. At present, the general manufacturing enterprises adopt the method of scribing and positioning, and manually find the position for drilling processing, which consumes more time and affects production efficiency.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a jig for processing radial holes uniformly distributed on the circumference, which can greatly improve the processing efficiency of these holes.

The utility model is realized by the following technical scheme: a fixture for processing radial holes uniformly distributed on the circumference, including a clamp body and a pin shaft, the pin shaft is fixed on the clamp body through screw threads, and a pin shaft is installed on one side of the clamp body Nut, and an indexing plate is installed on the pin shaft on the other side; a drilling template is fixed on the top of the clamp body, and a drill sleeve is arranged on the drilling template; blind holes are evenly distributed along the circumference of the indexing plate, and the bottom of the clamping body is connected with the indexing plate. There is a blind hole in the joint, and a spring and a steel ball are installed in the blind hole on the clamp body. The diameter of the steel ball is larger than the diameter of the blind hole on the index plate; the workpiece is correspondingly installed on the pin shaft under the drill sleeve and passes through the index. The end face of the disc is positioned, and the workpiece and the indexing disc are fixed on the pin shaft through the lock nut; a clamping plate is installed between the lock nut and the workpiece.

The beneficial effect of the utility model is that the workpiece can be precisely positioned, so that the hole to be drilled on the workpiece is consistent with the position of the drilling template, and the position accuracy of the drilled hole meets the requirements. While ensuring the processing quality of the hole on the workpiece, Improve processing efficiency.

Description of drawings

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

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

In the figure: 1. Clamp body, 2. Steel ball, 3. Spring, 4. Pin shaft, 5. Drill template, 6. Drill sleeve, 7. Handle, 8. Dial, 9. Clamp, 10. Workpiece .

Detailed ways

As shown in Figure 1, a fixture for machining radial holes uniformly distributed on the circumference has a clamp body 1 and a pin shaft 4, the pin shaft is mounted on the clamp body through threads, a nut is installed on the pin shaft of one side of the clamp body, and a nut is installed on the other side of the clamp body. An indexing plate 8 is installed on the pin shaft; a drill template 5 is fixed on the top of the clamp body 1, and a drill sleeve 6 is arranged on the drill template 5; There is a blind hole at the joint part of the dial, and a spring 3 and a steel ball 2 are installed in the blind hole on the clamp body. The diameter of the steel ball is larger than the diameter of the blind hole on the dial; the workpiece corresponds to the pin shaft installed under the drill sleeve 6 and the positioning is carried out through the end face of the indexing plate, and the workpiece and the indexing plate are fixed on the pin shaft through the lock nut; a clamping plate 9 is installed between the lock nut and the workpiece.

In this embodiment, there are φ16 blind holes evenly distributed along the circumference on the indexing plate, and φ20 blind holes are drilled at the junction of the lower part of the clamp body and the indexing plate, and springs and φ19.8 steel balls are installed inside for bisection The dial is positioned in the circumferential direction. In order to facilitate processing, three handles 7 for rotating the indexing plate are installed in the radial direction of the indexing plate.

Working process: put springs and φ19.8 steel balls in the φ20 blind hole of the clamp body, the short cylindrical pin is fixed on the clamp body through threads, the index plate is installed on the short cylindrical pin, and the steel ball aligns with the index plate For any blind hole on the surface, fasten the drilling template on the clamp body with screws, install the drill bushing, and complete the assembly of the clamp. During processing, the workpiece is hoisted and installed on the pin shaft. The inner hole of the workpiece matches the short cylindrical surface on the pin shaft, and the end face cooperates with the end face of the indexing plate to achieve rapid positioning, and is locked by nuts and clamps. Then, you can start to process the first hole. After processing, turn the handle on the indexing plate until the steel ball snaps into the next blind hole on the indexing plate to process the next hole. In this way, all the holes are finished. processing.

Claims (3)

1. circumference uniform distribution radial hole clamp for machining, it is characterized in that: comprise clamp body (1) and bearing pin (4), bearing pin is installed on the clamp body by screw thread, on the side bearing pin of clamp body nut is installed, and index dial (8) is installed on the opposite side bearing pin; Fixedly there is bushing plate (5) on the top of clamp body (1), and bushing plate (5) is provided with drill bushing (6); Be uniformly distributed with blind hole on the index dial along the circumference, the clamp body below is provided with blind hole with the index dial binding site, and spring (3) and steel ball (2) are installed in the blind hole on the clamp body, and the diameter of steel ball is greater than the diameter of blind hole on the index dial; The workpiece correspondence is installed on the bearing pin of drill bushing (6) below and the end face by index dial positions, and workpiece and index dial are fixed on the bearing pin by locking nut; Clamp (9) is installed between locking nut and the workpiece.

2. a kind of circumference uniform distribution radial hole clamp for machining according to claim 1 is characterized in that: the index dial radial direction is equipped with 3 handles that are used for rotating index dial.

3. a kind of circumference uniform distribution radial hole clamp for machining according to claim 1 and 2, it is characterized in that: going up on the index dial has φ 16 blind holes that are uniformly distributed along the circumference, the clamp body below is drilled with φ 20 blind holes with the index dial binding site, the steel ball of spring and φ 19.8 is equipped with in the inside, is used for index dial is located at circumferencial direction.

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