Drilling and tapping integrated jig

Abstract

The utility model relates to tool holder technical field discloses a drilling and tapping integrated holder, including fixed arm and installation mechanism, the installation mechanism includes fixed mounting seat and movable mounting seat, the fixed mounting seat is connected with fixed arm fixedly, movable mounting seat is connected with fixed mounting seat through the connecting mechanism, and movable mounting seat can move relative to fixed mounting seat, movable mounting seat and fixed mounting seat all are provided with the mounting hole that penetrates horizontally. The utility model is intended to realize drilling and tapping integration, and avoids the interference of drill bit, tap and workpiece.

Description

Technical Field

[0001] This utility model relates to the field of tool fixture technology, specifically to an integrated drilling and tapping fixture. Background Technology

[0002] In the field of machining, drilling and tapping are two common and closely related hole-making processes, widely used in the manufacture of various parts, such as automotive engine components, aerospace precision components, and electronic device housings. In traditional machining methods, drilling and tapping are usually performed as two separate processes, requiring operators to first drill holes on a machine tool and then switch to tapping. Integrating drilling and tapping functions into a single fixture allows both processes to be completed in a single setup. This effectively reduces auxiliary time spent changing tools, significantly improves production efficiency, and fundamentally avoids positioning errors caused by two setups, significantly improving the coaxiality accuracy of holes and threads. This is of great significance for achieving automated and unmanned production.

[0003] Currently, there are two main types of tool holder designs for integrated drilling and tapping. The first type uses two completely independent fixtures, installed at different stations on the machine tool or changed via a tool magazine, essentially physically separating the two processes. The second type uses a dedicated composite tool holder, integrating the drill bit and tap in a fixed relative position onto a single tool holder, forming a rigid unit. Drilling and tapping can then be completed sequentially with a single feed from the machine tool spindle.

[0004] However, the existing technical solutions mentioned above all have obvious limitations. For the first independent fixture solution, it cannot leverage the efficiency and precision advantages of integration; tool changing and repositioning are time-consuming, and positioning errors are difficult to avoid. For the second composite tool holder solution, the relative distance between the drill and tap is fixed, lacking adjustability. This means that a single fixture can only be used for machining parts with a specific center distance, resulting in extremely poor versatility. Furthermore, the rigid connection structure is extremely inflexible when dealing with tools of different specifications or when fine-tuning the position to avoid interference. Utility Model Content

[0005] The present invention aims to provide an integrated drilling and tapping fixture to achieve integrated drilling and tapping and avoid interference between the drill bit, tap and workpiece.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A drilling and tapping integrated fixture includes a fixed arm and a mounting mechanism. The mounting mechanism includes a fixed mounting base and a movable mounting base. The fixed mounting base is fixedly connected to the fixed arm. The movable mounting base is connected to the fixed mounting base through a connecting mechanism and can move relative to the fixed mounting base. Both the movable mounting base and the fixed mounting base are provided with a through mounting hole in the lateral direction. The movable mounting base and the fixed mounting base are also provided with an adaptation groove. One side of the adaptation groove communicates with the mounting hole, and the other side penetrates the side wall of the movable mounting base and the fixed mounting base.

[0007] The principles and advantages of this scheme are: 1. It integrates drilling and tapping functions. The mounting mechanism can simultaneously install drill bits and taps, meeting the continuous operation requirements of drilling first and then tapping during the processing, improving processing efficiency and avoiding the time and operating costs caused by frequent fixture changes.

[0008] 2. The fixed mounting base and the movable mounting base are connected by the upper and lower mounting plates of the connecting mechanism. The upper and lower connecting plates simultaneously press the fixed mounting base and the movable mounting base from both sides, adopting a bidirectional pressing structure. This ensures that the sidewalls of the mounting holes tightly press against the mounting end of the drill bit or tap, improving the stability of the clamping. At the same time, the connecting structure can also drive the movable mounting base to move relative to the fixed mounting base, thereby adjusting the distance between the drill bit and the tap. This allows the fixture to adapt to the machining of parts of different shapes and sizes, effectively preventing interference between the drill bit and the tap during machining and improving the versatility of the fixture.

[0009] 3. An adaptive groove is provided that communicates with the mounting hole, so that the mounting hole is no longer a rigid hole, but has a certain elastic clamping range. By tightening the adaptive groove, the mounting ends of drill bits or taps of different diameters can be clamped, and the tolerance requirements of the drill bit and tap shank can be relaxed. At the same time, the machining accuracy requirements of the mounting hole itself are also reduced accordingly.

[0010] Preferably, as an improvement, the connecting mechanism includes an upper connecting plate and a lower connecting plate. The upper connecting plate is disposed on the top of the mounting mechanism, with one end connected to the top of the fixed mounting base and the other end connected to the top of the movable mounting base. The lower connecting plate is disposed at the bottom of the mounting mechanism, with one end connected to the bottom of the fixed mounting base and the other end connected to the bottom of the movable mounting base.

[0011] Technical effect: With the above-mentioned configuration, the upper connecting plate and the lower connecting plate apply clamping force to the fixed mounting base and the movable mounting base simultaneously and evenly from two directions, connecting the fixed mounting base and the movable mounting base into a stable whole. This prevents the movable mounting base from shaking or warping during processing, ensuring the rigidity of the clamping and ensuring that the adapting groove can shrink evenly, thereby achieving concentric and stable clamping of the tool and avoiding skewing caused by unilateral clamping.

[0012] Preferably, as an improvement, the upper connecting plate and the lower connecting plate are provided with a plurality of parallel strip holes at one end. The upper connecting plate and the lower connecting plate are connected to the fixed mounting base by a first bolt. The first bolt passes through the strip holes and is threaded to the fixed mounting base. The upper connecting plate and the lower connecting plate are connected to the movable mounting base by a second bolt. The second bolt passes through the upper connecting plate and the lower connecting plate and is threaded to the movable mounting base.

[0013] Technical effect: This solution adopts the above settings, with the strip hole cooperating with the first bolt, to achieve stepless adjustment of the distance between the movable mounting base and the fixed mounting base.

[0014] Preferably, as an improvement, the first bolts of the upper connecting plate and the lower connecting plate are staggered, and the second bolts of the upper connecting plate and the lower connecting plate are also staggered.

[0015] Technical benefits: By adopting the above-mentioned configuration, this solution can avoid the stress concentration on the fixed mounting base and the movable mounting base on the same vertical line, disperse the stress points, and make the pressure more evenly distributed on the fixed mounting base and the movable mounting base. This avoids the problem of excessive local stress caused by the concentrated setting of bolts, enhances the stability and reliability of the connection structure, and reduces deformation or damage caused by uneven stress.

[0016] Preferably, as an improvement, the connecting surfaces of the upper connecting plate and the fixed mounting base and the movable mounting base are all provided with a frosted coating, and the connecting surfaces of the lower connecting plate and the fixed mounting base and the movable mounting base are also provided with a frosted coating.

[0017] Technical effect: The above-mentioned settings in this solution increase the static friction between the connecting plate and the mounting base by using a frosted coating. This prevents the connection from becoming loose or shifting slightly due to vibration or other reasons during processing, and keeps the adjusted position, thereby ensuring the center distance accuracy of drilling and tapping.

[0018] Preferably, as an improvement, the upper connecting plate and the lower connecting plate are flat plate structures or bent plate structures.

[0019] Technical benefits: The above-mentioned configuration of this solution allows for the use of a flat plate connecting plate suitable for general processing scenarios. The plate is simple in structure and easy to manufacture and install. The bent plate connecting plate can be designed for complex workpiece structures. By adjusting the bending angle and degree, interference between the drill bit and tap and the workpiece during processing can be further prevented, thus improving the adaptability of the fixture to complex workpiece processing. The appropriate connecting plate structure can be selected according to the actual processing requirements and workpiece characteristics. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0021] Figure 2 This is a side view of an embodiment of the present utility model.

[0022] Figure 3 This is a schematic diagram of the structure from another perspective of an embodiment of the present utility model.

[0023] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0024] Figure 5 This is a side view of Embodiment 2 of the present invention.

[0025] Figure 6 This is a structural schematic diagram from another perspective of Embodiment 2 of this utility model.

[0026] The reference numerals in the accompanying drawings include: fixed arm 1, fixed mounting base 2, mounting hole 21, adaptation groove 22, movable mounting base 3, upper connecting plate 4, strip hole 41, first bolt 42, second bolt 43, and lower connecting plate 5. Detailed Implementation

[0027] The following detailed description illustrates the specific implementation method: Example 1 The basics are as follows: Figure 1-3 As shown: The drilling and tapping integrated fixture includes a fixed arm 1 and a mounting mechanism. The fixed arm 1 is used to connect to the machine tool, and the mounting mechanism is used to mount the drill bit and tap. Figure 1 As shown, the mounting mechanism includes a fixed mounting base 2 and a movable mounting base 3. The fixed mounting base 2 is fixedly connected to the fixed arm 1. The movable mounting base 3 is connected to the fixed mounting base 2 via a connecting mechanism and can move relative to the fixed mounting base 2, moving closer to or further away from it. Both the movable mounting base 3 and the fixed mounting base 2 have transversely penetrating mounting holes 21 for mounting drill bits and taps. The movable mounting base 3 and the fixed mounting base 2 also have adapting grooves 22. One side of the adapting groove 22 communicates with the mounting hole 21, and the other side penetrates the sidewall of the movable mounting base 3 and the fixed mounting base 2. The adapting groove 22 allows the diameter of the mounting hole 21 to be within a range, rather than a fixed value, reducing the precision requirements for the mounting ends of the drill bit and tap.

[0028] like Figure 2As shown, the connecting mechanism includes an upper connecting plate 4 and a lower connecting plate 5. The upper connecting plate 4 is located at the top of the mounting mechanism. One end of the upper connecting plate 4 is connected to the top of the fixed mounting base 2 via a first bolt 42, and the other end is connected to the top of the movable mounting base 3 via a second bolt 43. The lower connecting plate 5 is located at the bottom of the mounting mechanism. One end of the lower connecting plate 5 is connected to the bottom of the fixed mounting base 2 via a first bolt 42, and the other end is connected to the bottom of the movable mounting base 3 via a second bolt 43. The upper connecting plate 4 and the lower connecting plate 5 simultaneously press the fixed mounting base 2 and the movable mounting base 3 from above and below, narrowing the adaptation groove 22 and pressing the side wall of the mounting hole 21 against the outer surface of the drill bit or tap mounting end.

[0029] like Figure 1 , 3 As shown, the upper connecting plate 4 and the lower connecting plate 5 have multiple parallel strip holes 41 at one end of the fixed mounting base 2. The first bolt 42 passes through the strip hole 41 and is threaded to the fixed mounting base 2. The second bolt 43 passes through the upper connecting plate 4 and the lower connecting plate 5 and is threaded to the movable mounting base 3. Loosening the first bolt 42 and pulling the movable mounting base 3 causes the first bolt 42 to move relative to the strip hole 41, thereby changing the distance between the fixed mounting base 2 and the movable mounting base 3.

[0030] Furthermore, such as Figure 2 As shown, the first bolts 42 of the upper connecting plate 4 and the lower connecting plate 5 are misaligned, and the second bolts 43 of the upper connecting plate 4 and the lower connecting plate 5 are also misaligned.

[0031] The connecting surfaces of the upper connecting plate 4 with the fixed mounting base 2 and the movable mounting base 3 are all provided with a frosted coating. The connecting surfaces of the lower connecting plate 5 with the fixed mounting base 2 and the movable mounting base 3 are also provided with a frosted coating. That is, the contact surfaces between the upper connecting plate 4 and the lower connecting plate 5 and the fixed mounting base 2 and the movable mounting base 3 are all provided with a frosted coating, which can increase the friction between the contact surfaces.

[0032] In actual use, when the fixed arm 1 is connected to the machine tool, first loosen the multiple first bolts 42 and second bolts 43, and insert the mounting ends of the drill bit and tap into the mounting holes 21 of the movable mounting base 3 and the fixed mounting base 2 respectively. Then, first tighten the second bolts 43, and then adjust the distance between the movable mounting base 3 and the fixed mounting base 2 according to the shape of the part to be processed to ensure that the drill bit and tap will not interfere during processing. After adjusting to a suitable distance, tighten the first bolts 42. At this time, the distance between the movable mounting base 3 and the fixed mounting base 2 is fixed. At the same time, the upper mounting plate and the lower mounting plate press the movable mounting base 3 and the fixed mounting base 2 from above and below, so that the adapting groove 22 narrows, the side wall of the mounting hole 21 is tightened, and the outer surface of the mounting ends of the drill bit and tap is tightened, so as to achieve a stable clamping of the drill bit and tap.

[0033] Example 2 The basics are as follows: Figure 4-6 As shown The difference between this embodiment and Embodiment 1 is that, in this embodiment, both the upper connecting plate 4 and the lower connecting plate 5 are bent plate structures, such as... Figure 4 As shown, this embodiment uses an L-shaped structure for demonstration, where the included angle between the two ends of the upper connecting plate 4 and the lower connecting plate 5 is 90°. In actual use, the included angle between the two ends of the upper connecting plate 4 and the lower connecting plate 5 ranges from 90° to 180°. For some complex workpiece structures, interference can be further prevented by simply replacing the upper connecting plate 4 and the lower connecting plate 5 with different degrees of bending.

[0034] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A drilling and tapping integrated fixture, characterized in that: The device includes a fixed arm and a mounting mechanism. The mounting mechanism includes a fixed mounting base and a movable mounting base. The fixed mounting base is fixedly connected to the fixed arm. The movable mounting base is connected to the fixed mounting base through a connecting mechanism and can move relative to the fixed mounting base. Both the movable mounting base and the fixed mounting base are provided with a through mounting hole in the lateral direction. The movable mounting base and the fixed mounting base are also provided with an adaptation groove. One side of the adaptation groove communicates with the mounting hole, and the other side penetrates the side wall of the movable mounting base and the fixed mounting base.

2. The drilling and tapping integrated fixture according to claim 1, characterized in that: The connecting mechanism includes an upper connecting plate and a lower connecting plate. The upper connecting plate is disposed on the top of the mounting mechanism, with one end connected to the top of the fixed mounting base and the other end connected to the top of the movable mounting base. The lower connecting plate is disposed at the bottom of the mounting mechanism, with one end connected to the bottom of the fixed mounting base and the other end connected to the bottom of the movable mounting base.

3. The drilling and tapping integrated fixture according to claim 2, characterized in that: The upper connecting plate and the lower connecting plate are provided with a plurality of parallel strip holes at one end. The upper connecting plate and the lower connecting plate are connected to the fixed mounting base by a first bolt. The first bolt passes through the strip hole and is threaded to the fixed mounting base. The upper connecting plate and the lower connecting plate are connected to the movable mounting base by a second bolt. The second bolt passes through the upper connecting plate and the lower connecting plate and is threaded to the movable mounting base.

4. The drilling and tapping integrated fixture according to claim 3, characterized in that: The first bolts of the upper connecting plate and the lower connecting plate are misaligned, and the second bolts of the upper connecting plate and the lower connecting plate are also misaligned.

5. The drilling and tapping integrated fixture according to claim 4, characterized in that: The connecting surfaces of the upper connecting plate and the fixed mounting base and the movable mounting base are all provided with a frosted coating, and the connecting surfaces of the lower connecting plate and the fixed mounting base and the movable mounting base are also provided with a frosted coating.

6. The drilling and tapping integrated fixture according to claim 5, characterized in that: The upper connecting plate and the lower connecting plate are either flat plate structures or bent plate structures.

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