Eccentric drilling tool for mechanical parts

Abstract

The utility model discloses an eccentric drilling tool for mechanical parts, which relates to the technical field of machining and comprises a bottom plate, a vertical plate is fixedly connected above the bottom plate, a swing frame is arranged on the vertical plate, a pressing mechanism and an eccentric wheel are respectively arranged in front of and behind the swing frame, the pressing mechanism comprises a pressing fork and a guide rod, and a drilling support plate is arranged at the top end of the vertical plate. The drilling tool is compact in design, all components are mutually coordinated, the stability of the whole structure and the operation convenience are ensured, the drilling tool can be conveniently arranged and used in a factory workshop or a production line, workpieces can be effectively limited and positioned through the tool, especially for extrusion and abutting of workpiece chamfers, the drilling precision and stability are greatly improved, and the production efficiency is improved. A worker only needs to place a workpiece in the limiting groove, and the workpiece can be pressed and limited by adjusting the pressing mechanism through the eccentric wheel and the handle. The whole operation process is simple and visual, complex adjustment or calibration steps are not needed, the operation difficulty is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an eccentric drilling tool for mechanical parts. Background Art

[0002] Eccentric drilling of mechanical parts is a machining process that requires the center of the drilled hole to deviate from the standard axis. This process requires precise positioning and special fixtures to ensure the accuracy of the eccentric position. It is usually completed on a CNC drilling machine or a common drilling machine. According to the structural shape of the parts, technicians in this field will design corresponding fixtures for assistance. For example, the authorized patent CN201921586097.3 is a special adjustable table for radial drilling based on the eccentric shaft of the gear. They are all designed to improve efficiency and accuracy. Figure 1 This kind of workpiece requires eccentric drilling on the fixed axis. Therefore, a special eccentric drilling tool is designed. Utility Model Content

[0003] The purpose of the utility model is to provide an eccentric drilling tool for mechanical parts to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an eccentric drilling tool for mechanical parts, comprising a base plate, a vertical plate fixedly connected to the top of the base plate, a swing frame provided on the vertical plate, a clamping mechanism and an eccentric wheel provided at the front and rear of the swing frame respectively, the clamping mechanism comprising a clamping fork and a guide rod, and a drilling support plate provided at the top of the vertical plate.

[0005] Furthermore: both sides of the clamping fork are penetrated by a guide rod, and the end of the guide rod is fixedly connected to the front end of the swing frame, and a spring and a nut are provided at the front end of the guide rod.

[0006] Preferably, a pressing block is provided at the lower end of the pressing fork, a supporting block is provided at the front end of the pressing fork, and the inner side of the supporting block is an inclined surface.

[0007] Furthermore: a limiting groove is provided in front of the base plate, a cushion block is provided at the rear of the base plate, the top of the cushion block is in contact with the outer surface of the eccentric wheel, and a handle is provided at the rear of the eccentric wheel.

[0008] Preferably, the drilling support plate is fixedly connected to the vertical plate, and a drill sleeve is provided in front of the drilling support plate.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a compact design, and the various components are coordinated with each other, ensuring the stability of the overall structure and the convenience of operation, and is easy to arrange and use in a factory workshop or production line. Through the design of the clamping mechanism and the support block, the tooling can effectively limit and position the workpiece, especially for the extrusion support of the chamfered workpiece, which greatly improves the accuracy and stability of the drilling. The worker only needs to place the workpiece in the limit groove, and adjust the clamping mechanism through the eccentric wheel and the handle to achieve the clamping and limiting of the workpiece. The entire operation process is simple and intuitive, without complicated adjustment or calibration steps, reducing the difficulty of operation and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is the front view of the utility model;

[0012] Figure 3 It is a side view of the utility model;

[0013] Figure 4 It is a top view of the utility model;

[0014] Figure 5 It is a schematic diagram of the workpiece structure;

[0015] Figure 6 This is the working diagram of the utility model;

[0016] Figure 7 This is an enlarged schematic diagram of point A.

[0017] In the figure: 1, base plate, 2, swing frame, 3, eccentric wheel, 4, vertical plate, 5, drilling support plate, 6, clamping mechanism, 7, handle, 8, drill sleeve, 9, workpiece, 101, limit groove, 102, cushion block, 601, clamping fork, 602, guide rod, 603, nut, 604, spring, 605, pressure block, 606, support block. DETAILED DESCRIPTION

[0018] The present invention will be described below based on the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. However, it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.

[0019] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn according to scale.

[0020] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0021] See also Figure 1-Figure 7 The utility model provides a technical solution: it includes a bottom plate 1, a vertical plate 4 is fixedly connected to the top of the bottom plate 1, a swing frame 2 is provided on the vertical plate 4, a clamping mechanism 6 and an eccentric wheel 3 are respectively provided at the front and rear of the swing frame 2, the clamping mechanism 6 includes a clamping fork 601 and a guide rod 602, and a drilled support plate 5 is provided at the top of the vertical plate 4.

[0022] The two sides of the clamping fork 601 are penetrated by the guide rod 602, and the end of the guide rod 602 is fixed to the front end of the swing frame 2. The front end of the guide rod 602 is provided with a spring 604 and a nut 603.

[0023] A pressing block 605 is provided at the lower end of the pressing fork 601 , and a supporting block 606 is provided at the front end of the pressing fork 601 . The inner side of the supporting block 606 is an inclined surface.

[0024] A limiting groove 101 is provided in front of the bottom plate 1 , a cushion block 102 is provided at the rear of the bottom plate 1 , the upper part of the cushion block 102 is in contact with the outer surface of the eccentric wheel 3 , and a handle 7 is provided at the rear of the eccentric wheel 3 .

[0025] The drilling support plate 5 is fixedly connected to the vertical plate 4 , and a drill sleeve 8 is provided in front of the drilling support plate 5 .

[0026] When using this utility model, if the attached Figure 5 The workpiece 9 shown is a cylinder on the top and a table top on the bottom. The chamfers on all sides of the table top are used to perform pushing, squeezing and limiting. First, a worker needs to prevent the workpiece 9 from being in the limiting groove 101. Then, the eccentric wheel 3 can be rotated by the handle 7 to achieve the downward movement of the front end of the rocking frame 2, which can drive the clamping mechanism 6 to clamp the table top through the pressing block 605, and the supporting block 606 can squeeze and support the chamfer of the table top, thereby realizing the overall limiting of the workpiece 9. Then, the drill bit can be driven by the existing drilling rig to pass through the drill sleeve 8 to drill a hole. The overall design has a compact structure, good limiting effect, and is extremely simple to operate.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An eccentric drilling tool for mechanical parts, characterized in that: The invention comprises a bottom plate (1), a vertical plate (4) is fixedly connected to the top of the bottom plate (1), a swing frame (2) is arranged on the vertical plate (4), a clamping mechanism (6) and an eccentric wheel (3) are arranged at the front and rear of the swing frame (2), respectively, the clamping mechanism (6) comprises a clamping fork (601) and a guide rod (602), and a drilled support plate (5) is arranged at the top of the vertical plate (4).

2. The eccentric drilling tool for mechanical parts according to claim 1, characterized in that: The two sides of the clamping fork (601) are penetrated by a guide rod (602), and the end of the guide rod (602) is fixedly connected to the front end of the swing frame (2). The front end of the guide rod (602) is provided with a spring (604) and a nut (603).

3. The eccentric drilling tool for mechanical parts according to claim 2, characterized in that: A pressing block (605) is provided at the lower end of the pressing fork (601), and a supporting block (606) is provided at the front end of the pressing fork (601), and the inner side of the supporting block (606) is an inclined surface.

4. The eccentric drilling tool for mechanical parts according to claim 1, characterized in that: A limiting groove (101) is provided in front of the base plate (1), a cushion block (102) is provided at the rear of the base plate (1), the upper portion of the cushion block (102) is in contact with the outer surface of the eccentric wheel (3), and a handle (7) is provided at the rear of the eccentric wheel (3).

5. The eccentric drilling tool for mechanical parts according to claim 1, characterized in that: The drilling support plate (5) is fixedly connected to the vertical plate (4), and a drilling sleeve (8) is provided in front of the drilling support plate (5).

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