Locating and guiding hand drill

Abstract

The invention relates to a locating and guiding hand drill comprising a fixed frame and a hand drill body fixed to the upper portion of the fixed frame. The locating and guiding hand drill further comprises a guiding device and a locating device. The guiding device comprises at least one guiding beam. One end of the guiding beam is connected with the fixed frame. The other end of the guiding beamis connected with the locating device. The guiding beam is parallel to the feed direction of a drill bit of the hand drill body. The locating device comprises an attaching plate and a connecting plate. One face of the attaching plate is fixed to the guiding beam through the connecting plate. The other face of the attaching plate is matched with the shape of a machined part and is attached to the machined part. The attaching plate of the locating and guiding hand drill is wide in changeability, stability of the connecting plate is high, the locating device and the guiding device ensure the concentricity of hole machining effectively, the hole machining skill of the hand drill is changed into technology, special machining of irregular holes of various shapes in the industry is achieved, andthe industry expectations of high efficiency, high quality and low cost are obtained.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a positioning and guiding hand drill capable of positioning and guiding. Background technique [0002] In actual production, some threads or holes are not suitable for machine processing due to the shape or position of the part where they are located; for example, the diameter of the threaded hole of the small hole thread is small, and when the machine thread is used, it is easy to cause a tap with low strength. the break; another example Image 6 Counterbore or drilled hole in a convex location in a thin-walled arc part as shown, such as Figure 7 The deep-hole or small-hole parts shown have certain limitations when machining threads with machine tapping; therefore, hand-tapping threads, manual drilling and reaming, etc. still have a certain status. [0003] In the field of mechanical processing, manual drilling, manual drilling and reaming, etc. are o...

AI Technical Summary

Problems solved by technology

[0004] The positioning accuracy of the parts will directly affect the positional accuracy and dimensional accuracy of the parts. However, the hand drill does not have a part positioning device. The positioning of the existing parts requires the operator to rely on experience to determine whether the positioning is accurate. The error caused by the operator's unsteady handhold seriously affects the assembly of the parts; the guide of the parts is only controlled by the operator's manual control, and it is impossible to ensure that the parts move completely parallel. The slight movement of the parts in the vertical direction will cause the hole to appear eccentric, which is serious. It will cause the tool to break and cause the parts to be scrapped

At the same time, manual tapping, manual drilling, and reaming require the operator to use even force during the operation process, so the operator has a high level of requirements and is not versatile, resulting in the need for manual tapping, manual drilling, and reaming. A large number of parts are backlogged in the hands of experienced operators, and there is little room for improvement in production progress

[0005] It can be seen from the above that the quality of products processed by existing hand drills is often affected by human factors and is difficult to guarantee. Quality problems such as eccentricity, tearing of thread teeth, and broken knives often occur; when parts are processed in large quantities, it is difficult for the operator to guarantee The part is completely perpendicular to the tool, and the consistency of part processing is poor; the processing of artificially controlled threads and holes not only has poor stability, but also has high processing risks, long production cycle, and high technical requirements for personnel.

Therefore, the existing conditions of use of hand drills can no longer match the extensive needs of market development, and it needs to be redesigned

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