Combined drilling tool for drilling machine

Abstract

The utility model belongs to the field of drilling frock, propose a kind of combined drilling frock for drilling machine, including drill jig cover and two frock clamping plate, the middle of frock clamping plate is provided with the threaded hole for installing clamping bolt, and frock clamping plate is provided with workpiece positioning hole and guide positioning hole, and frock clamping plate is provided with 3 around workpiece positioning hole distribution's φ11.5 drill jig hole, the outside of φ11.5 drill jig hole is provided with φ10 drill jig hole, and the guide column that is matched with guide positioning hole is provided between frock clamping plate.The utility model is clamped workpiece by using the two frock clamping plate of upper and lower hole position consistent correspondence, 3 φ11.5 holes on workpiece are simultaneously processed, then φ10 hole is processed, so that multiple hole sizes processing can be completed by once clamping, ensure position degree and position accuracy, satisfy the use requirement of product, improve processing efficiency, and it is reasonable in design, simple structure, low in cost, it is suitable for large-scale popularization.

Description

Technical Field

[0001] This utility model belongs to the field of drilling tooling, and in particular relates to a combined drilling tooling for a drilling machine. Background Technology

[0002] A single part is machined with four holes (three φ11.5 holes and one φ1 hole) using a drilling machine. If normal machining is used, the holes need to be machined separately due to their different diameters, requiring multiple clamping operations. Furthermore, drilling directly through one end face of the workpiece in one go is prone to deviation and positional errors, resulting in low final product quality. Utility Model Content

[0003] This utility model addresses the technical problems existing in the aforementioned drilling fixtures by proposing a combined drilling fixture for drilling machines that is rationally designed, simple in structure, capable of processing multiple hole sizes in a single clamping, and beneficial for improving positional accuracy and processing efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: the combined drilling fixture for a drilling machine provided by this utility model includes a drill jig sleeve and two fixture clamping plates for installing the drill jig sleeve. The fixture clamping plates are provided with a threaded hole in the middle for installing clamping bolts. The fixture clamping plates are provided with a plurality of positioning holes arranged in a straight line. The positioning holes include at least two workpiece positioning holes and two guide positioning holes. The fixture clamping plates are provided with three φ11.5 drill jig holes distributed around the workpiece positioning holes. φ10 drill jig holes are provided on the outer side of the φ11.5 drill jig holes. The φ10 drill jig holes, the workpiece positioning holes and one φ11.5 drill jig hole are located on the same straight line. Guide posts that cooperate with the guide positioning holes are provided between the fixture clamping plates.

[0005] Preferably, among the three adjacent φ11.5 drill jig holes, the included angle between two of the φ11.5 drill jig holes and the center of the workpiece positioning hole is 140°, and the included angle between the center of the other φ11.5 drill jig hole and the center of the other two φ11.5 drill jig holes is 110°.

[0006] Preferably, the guide positioning hole is a horn hole with a cone angle of 60° on the side of the horn hole.

[0007] Preferably, the guide post includes a first cylindrical segment, a second cylindrical segment, a third cylindrical segment, and a frustum segment distributed sequentially, wherein the cone angle of the frustum segment is 4°, and the length of the first cylindrical segment is equal to the sum of the lengths of the third cylindrical segment and the frustum segment.

[0008] Preferably, the drill jig includes an inner nesting body, and a drill sleeve body is disposed inside the inner nesting body, the drill sleeve body having a T-shaped structure.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] The combined drilling fixture for drilling machines provided by this utility model uses two fixture clamping plates with consistent upper and lower hole positions to clamp the workpiece, which can realize the simultaneous processing of three φ11.5 holes from the top and bottom. After the three φ11.5 holes are processed, the φ10 holes are processed. Therefore, multiple hole sizes can be processed in one clamping, ensuring positional accuracy and meeting the product's usage requirements. Moreover, one set of fixtures can correspond to two workpieces at a time, improving processing efficiency. Furthermore, it has a reasonable design, simple structure, and low cost, making it suitable for large-scale promotion. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A cross-sectional view of a combined drilling fixture for a drilling machine;

[0013] Figure 2 This is a top view of a combined drilling fixture for a drilling machine;

[0014] Figure 3 This is a sectional view of the tooling clamping plate;

[0015] Figure 4 This is the front view of the guide column;

[0016] Figure 5 This is a schematic diagram of a drill jig sleeve;

[0017] In the above figures: 1. Drill jig sleeve; 11. Inner nested body; 12. Drill sleeve body; 2. Tooling clamping plate; 3. Threaded hole; 4. Positioning hole; 41. Workpiece positioning hole; 42. Guide positioning hole; 5. φ11.5 drill jig hole; 6. φ10 drill jig hole; 7. Guide post; 71. First cylindrical section; 72. Second cylindrical section; 73. Third cylindrical section; 74. Frustum section. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Examples, such as Figures 1-5 As shown, the combined drilling fixture for a drilling machine provided by this utility model includes a drill jig sleeve 1 and two fixture clamping plates 2 for mounting the drill jig sleeve 1. The fixture clamping plate 2 has a threaded hole 3 in the middle for mounting clamping bolts. The fixture clamping plate 2 has a plurality of positioning holes 4 arranged in a straight line. The positioning holes 4 include at least two workpiece positioning holes 41 and two guide positioning holes 42. The fixture clamping plate 2 has three φ11.5 drill jig holes 5 distributed around the workpiece positioning holes 41. A φ10 drill jig hole 6 is provided on the outer side of the φ11.5 drill jig hole 5. The φ10 drill jig hole 6, the workpiece positioning hole 41 and the φ11.5 drill jig hole 5 are located on the same straight line. A guide post 7 that cooperates with the guide positioning hole 42 is provided between the fixture clamping plates 2.

[0021] Specifically, the guide post 7 is used to connect in the guide positioning hole 42 to control the vertical distance between the two tooling clamping plates 2. Two workpieces can be clamped simultaneously between the tooling clamping plates 2. The workpieces are clamped by using two tooling clamping plates 2 with consistent upper and lower hole positions. A positioning pin that mates with the workpiece can be installed in the workpiece positioning hole 41 for positioning. When this tooling is clamped, three φ11.5 holes can be processed simultaneously from top to bottom. After the three φ11.5 holes are processed, the φ10 holes are processed. Therefore, multiple hole sizes can be processed in one clamping, ensuring positional accuracy and meeting the product's usage requirements. One set of tooling can correspond to two workpieces at a time, improving processing efficiency. Moreover, it has a reasonable design, simple structure, low cost, and high comprehensive utilization rate.

[0022] To improve the positional accuracy of holes on the same part, this utility model provides three φ11.5 drill holes 5 around the same workpiece positioning hole 41, in which two of the φ11.5 drill holes 5 are at an angle of 140° from the center of the workpiece positioning hole 41, and the other φ11.5 drill hole 5 is at an angle of 110° with the center of the other two φ11.5 drill holes 5. By precisely controlling the hole positions of the three adjacent φ11.5 drill holes 5, the positional accuracy of the φ11.5 drill holes 5 after processing can be effectively ensured, thus guaranteeing the quality of the product.

[0023] In order to improve the fit between the guide positioning hole 42 and the guide post 7, the guide positioning hole 42 provided by this utility model is a flared hole with a cone angle of 60°. The design of the flared hole can avoid the situation where the gap between the guide positioning hole 42 and the guide post 7 is too small and the friction increases, and it is also convenient to disassemble this device.

[0024] Furthermore, the guide post 7 provided by this utility model includes a first cylindrical segment 71, a second cylindrical segment 72, a third cylindrical segment 73, and a frustum segment 74 arranged sequentially. The cone angle of the frustum segment 74 is 4°. The length of the first cylindrical segment 71 is equal to the sum of the lengths of the third cylindrical segment 73 and the frustum segment 74. By adopting a stepped design, the guide post 7 can control the vertical spacing between the two tooling clamping plates 2. The frustum segment 74 is used for nesting and mating with the upper tooling clamping plate 2, so its tapered design facilitates the disassembly of the two. The first cylindrical segment 71 can be relatively stably inserted into the lower tooling clamping plate 2, which is beneficial to improving clamping efficiency.

[0025] To improve the utilization rate of the drill jig sleeve 1, the drill jig sleeve 1 provided by this utility model includes an inner nesting body 11, and a drill sleeve body 12 is provided inside the inner nesting body 11. The drill sleeve body 12 has a T-shaped structure. The inner nesting body 11 can be nested in the corresponding drill jig hole, and the drill sleeve body 12 can be appropriately replaced according to the actual hole diameter, which is conducive to improving the overall utilization rate of this tooling.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A combined drilling fixture for a drilling machine, comprising a drill jig sleeve and two fixture clamps for mounting the drill jig sleeve, characterized in that, The tooling clamp has a threaded hole in the middle for installing clamping bolts. The tooling clamp has multiple positioning holes arranged in a straight line, including at least two workpiece positioning holes and two guide positioning holes. The tooling clamp has three φ11.5 drill jig holes distributed around the workpiece positioning holes. A φ10 drill jig hole is provided on the outer side of the φ11.5 drill jig holes. The φ10 drill jig holes, the workpiece positioning holes and the φ11.5 drill jig holes are located on the same straight line. Guide posts that cooperate with the guide positioning holes are provided between the tooling clamps.

2. The combined drilling fixture for a drilling machine according to claim 1, characterized in that, Two of the three adjacent φ11.5 drill jig holes have an angle of 140° between them and the center of the workpiece positioning hole, while the other φ11.5 drill jig hole has an angle of 110° between its center and the centers of the other two φ11.5 drill jig holes.

3. The combined drilling fixture for a drilling machine according to claim 2, characterized in that, The guide positioning hole is a horn hole with a cone angle of 60° on its side.

4. The combined drilling fixture for a drilling machine according to claim 3, characterized in that, The guide post includes a first cylindrical segment, a second cylindrical segment, a third cylindrical segment, and a frustum segment arranged sequentially. The cone angle of the frustum segment is 4°, and the length of the first cylindrical segment is equal to the sum of the lengths of the third cylindrical segment and the frustum segment.

5. The combined drilling fixture for a drilling machine according to claim 1, characterized in that, The drill jig includes an inner nested body, and a drill sleeve body is disposed inside the inner nested body. The drill sleeve body has a T-shaped structure.

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