Drilling stabilizing clamp for long drill bit of numerical control machine tool

Abstract

The utility model belongs to the field of numerically-controlled machine tools, and relates to a long drill bit drilling stabilizing clamp of a numerically-controlled machine tool. Comprising a clamp body, guide columns, a drill plate, a T-shaped block, a drill sleeve and an inner hexagonal bolt, the clamp body is composed of a bottom plate and rib plates, the two rib plates are symmetrically welded and fixed to the middle of the bottom plate, the two guide columns are welded to the two sides of the bottom plate, and the drill plate penetrates through the two guide columns; the T-shaped block is inserted into the long-strip-shaped hole through the long-strip-shaped hole in the drill plate and is aligned with the threaded hole in the rib plate, and the T-shaped block is fixed through the inner hexagonal bolt. The drill bushing is arranged in the middle of the drill plate and guides the drill bit to be kept at the correct position. The clamp is simple in working principle, simplified in operation, convenient to use and capable of improving product precision.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tools and relates to a stabilizing fixture for drilling long drill bits on CNC machine tools. It can help reduce or eliminate the vibration of long drill bits during drilling on machine tools, thereby improving drilling accuracy. Background Technology

[0002] When drilling through holes on the side of large tooling, it is sometimes necessary to drill from both sides. Because the drill bit is long and there is no support device in the middle, the drill bit will swing downwards due to gravity when it is stationary, causing the drill bit to swing during drilling, resulting in inaccurate hole position and diameter. Utility Model Content

[0003] Utility Model Purpose

[0004] The purpose of this utility model is to reduce or eliminate drill bit oscillation and increase the accuracy of hole position and diameter during drilling when using long drill bits in CNC machine tools.

[0005] Technical solution

[0006] A stabilizing fixture for drilling long drill bits on a CNC machine tool includes a fixture body 1, guide posts 2, a drill template 3, T-blocks 4, a drill sleeve 5, and hex bolts 6. The fixture body 1 consists of a base plate and reinforcing ribs, with two symmetrical reinforcing ribs welded and fixed to the center of the base plate 1. Two guide posts 2 are welded to both sides of the base plate 1. The drill template 3 passes through the two guide posts 2. The T-blocks 4 are inserted into elongated holes on the drill template 3 and aligned with threaded holes on the reinforcing ribs, then fixed with hex bolts 6. The drill sleeve 5 is located in the center of the drill template 3 to guide the drill bit and maintain its correct position.

[0007] Furthermore, the drill template 3 and the guide post 2 are fitted with a clearance.

[0008] Furthermore, it also includes reinforcing ribs, which connect the two reinforcing plates and play a role in stabilizing and preventing vibration.

[0009] Furthermore, the stiffening plate is a trapezoidal structure, with the side of the trapezoidal structure closest to the drilling template 3 being at a right angle, which serves to support the drilling template 3 and prevent the guide post 2 from bending due to excessive force.

[0010] Furthermore, the base plate is provided with a positioning key mounting slot for mounting and using the positioning key.

[0011] Furthermore, the guide post 2 and drill sleeve 5 are made of T10A material, which is both hard and wear-resistant.

[0012] Furthermore, the fixture body 1 and the drill template 3 are made of 45 steel by quenching.

[0013] The beneficial effects of this application are as follows:

[0014] This fixture has a simple working principle, is easy to operate and use, and can improve product accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the fixture parts;

[0016] Figure 2 This is a schematic diagram of the angle welding fixture in operation;

[0017] Among them: 1-clamp body, 2-guide post, 3-drill template, 4-T-block, 5-drill bushing, 6-internal hex bolt; Figure 3 This is a schematic diagram of the clamp. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments. The following description represents only a portion of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] To address the aforementioned technical problems, this utility model provides a drilling fixture that acts as a supporting bridge between the drill bit and the workpiece. The fixture body is designed with three reinforcing ribs to prevent drill bit vibration during drilling and increase drilling stability. Simultaneously, a positioning keyway is provided at the bottom, similar to that of a machine tool, for rapid positioning. Mounting screw holes are drilled in the reinforcing ribs to mount and fit the drill template, enhancing its stability. Guide posts are provided at both ends of the fixture to enhance the guidance of the drill template, improving the accuracy of its sliding and enabling rapid and stable vertical sliding. T-slots are also added to the drill template, further increasing its stability after it is fixed in position.

[0020] Combined with appendix Figure 2 This invention provides a special fixture for drilling side holes with a long drill bit on a CNC machine tool. Fixture body 1 (as shown) Figure 1The bottom is equipped with a positioning keyway, similar to that of a machine tool, for quick positioning of the fixture, ensuring the drilling direction is perpendicular to the drilling surface. After adjusting the left-right and up-down positions of the drill template 3, the fixture is installed on the machine tool. The fixture body also features three reinforcing ribs. Two of these ribs have mounting screw holes for mounting and fitting the drill template 3 onto the ribs, providing positioning and anti-vibration functions. The third reinforcing rib increases the stability of the mounting ribs. Guide posts 2 are located at both ends of the fixture, allowing the drill template 3 to slide smoothly on them, enhancing its guiding properties and improving its sliding accuracy, enabling rapid and stable vertical sliding. After manually adjusting the position, the drill template is fixed with screws 6. The long drill bit passes through the fixed drill sleeve 5, effectively installing a stabilizing bracket on the drill bit pliers, thus eliminating drill bit vibration and improving drilling accuracy.

[0021] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein. The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this invention. It should be understood that the above descriptions are merely specific embodiments of this invention and are not intended to limit this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A stabilizing fixture for drilling long drill bits on CNC machine tools, characterized in that, The system includes a clamping body, guide posts, a drill template, T-blocks, a drill bushing, and hex bolts. The clamping body consists of a base plate and stiffening plates, with two symmetrical stiffening plates welded and fixed to the center of the base plate. Two guide posts are welded to both sides of the base plate. The drill template passes through the two guide posts. The T-block is inserted into the elongated hole on the drill template and aligned with the threaded hole on the stiffening plate, and fixed with hex bolts. The drill bushing is located in the center of the drill template to guide the drill bit to maintain the correct position.

2. The clamp as described in claim 1, characterized in that, The drill template and the guide post are fitted with a clearance.

3. The clamp as described in claim 2, characterized in that, It also includes reinforcing ribs, which connect the two reinforcing plates and play a role in stabilizing and preventing vibration.

4. The clamp as described in claim 3, characterized in that, The stiffening plate has a trapezoidal structure, with the side of the trapezoidal structure closest to the drilling template being a right angle, which serves to support the drilling template and prevent the guide column from bending due to excessive force.

5. The clamp as described in claim 4, characterized in that, The base plate is provided with a positioning key mounting slot for installing and using positioning keys.

6. The clamp as described in claim 5, characterized in that, The guide post and drill bushing are made of T10A material, which is both hard and wear-resistant.

7. The clamp as described in claim 6, characterized in that, The fixture and drilling template are made of 45 steel by quenching.

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