An angle-adjustable power knife seat

Abstract

The utility model discloses a power tool holder of adjustable angle, including the adapter flange who is connected with machine tool tool tower, and the rotary flange who is connected with the casing, and coaxial setting between adapter flange and rotary flan, the transmission mechanism is integrated in the casing, rotary flange is provided with the symmetrical arrangement adjusting groove, and the adjusting groove presents as arc structure and penetrates the both sides of rotary flange, the middle part of adapter flange both sides is provided with the positioning pin, to realize the purpose of adjusting tool holder processing angle, then through the screwing positioning pin can complete the re -locking between rotary flange and adapter flange, fixes the relative position of both, for example when doing bottle embryo mould, the milling of closed thread needs to rotate 4-10 angle, the previous technology is on the special machine, cannot one -time forming, can do one -time forming with this power tool holder currently, has simple and convenient to use, the finished product rate is high, the processing cost is low and the processing efficiency is high, and the universality is good.

Description

Technical Field

[0001] This utility model belongs to the field of machining equipment technology, specifically, it relates to an adjustable-angle power tool holder. Background Technology

[0002] The powered tool holder is a key component in modern mill-turn machining centers, enabling multi-functional machining. Mounted on the lathe turret, it houses an independent motor that drives the high-speed rotation of clamped end mills, drills, and other cutting tools. Its function is to provide an additional controllable "spindle" for the turning center, allowing the machine tool to perform milling, drilling, and tapping on the circumference or end face of the workpiece in addition to turning, greatly expanding its machining capabilities.

[0003] Currently, mainstream power tool holders typically offer only two preset and fixed angles for their power output shaft: 0° (axial, parallel to the machine tool spindle) and 90° (radial, perpendicular to the spindle). This design is simple in structure and low in cost. The 0° tool holder is suitable for operations such as axial drilling and end milling; the 90° tool holder is used for operations such as circumferential milling and radial hole machining. The two standard angles meet most common scenarios, allowing for switching between different processes in a single setup, significantly improving the machining efficiency of general-purpose parts without the need for additional tooling.

[0004] However, standard power tool holders cannot perform machining operations with special angles, such as slanted face milling, complex contour milling (30°, 45°, or any arbitrarily slanted surfaces), and spiral groove machining, due to their fixed angle. This forces engineers to increase the number of clamping operations, design special fixtures, or purchase machine tools with special angles, resulting in cumbersome processes, increased positioning errors, decreased yield, longer preparation time, and soaring machining costs, thus exhibiting certain limitations. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable-angle power tool holder, which solves the technical problem that the existing power tool holders only provide two preset and fixed angles, 0° and 90°, and cannot adapt to special angle processing requirements.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] An adjustable-angle power tool holder includes a transition flange connected to a machine tool turret and a rotating flange connected to a housing, with the transition flange and the rotating flange being coaxially arranged; a transmission mechanism is integrated inside the housing; the rotating flange has symmetrically arranged adjustment grooves, which are arc-shaped and penetrate both sides of the rotating flange; positioning pins are provided in the middle of both sides of the transition flange, and the positioning pins are inserted into the arc-shaped grooves.

[0008] Furthermore, a locking nut is fixedly provided on one side of the housing, and a tool chuck is provided inside the locking nut; a drive shaft is provided inside the housing at a position corresponding to the central axis of the rotating flange.

[0009] Furthermore, the transmission mechanism includes two rotating shafts connected to the tool chuck and the transmission shaft respectively, and two bevel gears connected to the two rotating shafts respectively, with the two bevel gears transmitting power to each other.

[0010] Furthermore, the transmission mechanism includes a worm gear connected to the transmission shaft and a worm wheel connected to the tool chuck via a rotating shaft.

[0011] Furthermore, the drive shaft and the tool chuck are arranged at 90° to each other on the housing.

[0012] Furthermore, loosen the locating pin to remove its clamping force on the rotating flange, adjust the relative position between the rotating flange and the transition flange so that their original 0° overlap becomes an interleaved state, and then tighten the locating pin to relock the rotating flange and the transition flange, thus fixing their relative position.

[0013] The beneficial effects of this utility model are as follows: When adjusting the angle of the tool holder in a machining center to meet the machining requirements of various angles, this utility model loosens the positioning pin to remove the clamping state of the positioning pin on the rotating flange. Then, according to the 0-30° angle scale set on it, the relative position between the rotating flange and the transition flange is adjusted so that the original 0° coincidence state becomes an interleaved state, such as a 30° angle, thereby achieving the purpose of adjusting the machining angle of the tool holder. Afterwards, tightening the positioning pin can complete the relocking between the rotating flange and the transition flange, fixing their relative positions. For example, when making bottle preform molds, the milling of closed threads requires a rotation angle of 4-10°. In the past, this process was done on a special machine and could not be formed in one go. Now, with this power tool holder, one-time forming can be achieved. It has the advantages of being simple and convenient to use, having a high yield rate, low processing cost, and high processing efficiency, and has good versatility. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 This is a rear view of the present invention;

[0016] The attached diagram lists the components represented by each number as follows:

[0017] 1. Housing; 2. Locking nut; 3. Tool chuck; 4. Rotary flange; 5. Adapter flange; 6. Locating pin; 7. Adjustment groove; 8. Drive shaft. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 - Figure 2 As shown, an adjustable-angle power tool holder includes an adapter flange 5 connected to a machine tool turret; it also includes a rotating flange 4 connected to a housing 1, and the adapter flange 5 and the rotating flange 4 are coaxially arranged; a locking nut 2 is fixedly provided on one side of the housing 1, and a tool chuck 3 is provided inside the locking nut 2, wherein the tool chuck 3 is a precision sleeve used to directly contact and wrap the tool (milling cutter, drill bit), ensuring that the coaxiality between the tool rotation center and the tool holder spindle axis is ≤0.01mm, and directly transmitting the torque of the tool holder motor to the tool cutting edge; the locking nut 2 is a metal ring that applies axial force, and is screwed onto the end of the power tool holder spindle by threads.

[0020] The housing 1 is equipped with an integrated transmission mechanism, such as a 90° transmission mechanism between a rotating shaft and a bevel gear or a 90° one-way transmission mechanism of a worm gear; a transmission shaft 8 is provided inside the housing 1 at the position corresponding to the central axis of the rotating flange 4. The transmission shaft 8 and the tool chuck 3 are arranged at 90° to each other on the housing 1, and the two are driven by the internal integrated transmission mechanism.

[0021] The rotary flange 4 has symmetrically arranged adjustment grooves 7, which are arc-shaped and run through both sides of the rotary flange 4; the transition flange 5 has positioning pins 6 in the middle of both sides, which are inserted into the arc-shaped grooves.

[0022] To facilitate understanding of the above technical solutions of this utility model, the working principle or operation method of the power tool holder provided by this utility model in actual processes will be described in detail below:

[0023] When adjusting the tool holder angle in a machining center to meet various machining requirements, the locating pin 6 is loosened to release its clamping force on the rotating flange 4. Then, according to the 0-30° angle scale on the locating pin, the relative position between the rotating flange 4 and the transition flange 5 is adjusted, changing their original 0° overlap to an interleaved state, such as a 30° angle. This achieves the purpose of adjusting the tool holder machining angle. Afterward, tightening the locating pin 6 relocks the rotating flange 4 and the transition flange 5, fixing their relative positions. For example, when making bottle preform molds, milling closed threads requires a 4-10 degree rotation. Previously, this process was done on a special machine, which could not be completed in one go. Now, with this power tool holder, one-time completion is possible. It has the advantages of being simple and convenient to use, having a high yield rate, low processing cost, and high processing efficiency, and is widely applicable.

[0024] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An adjustable-angle power tool holder, characterized in that: It includes a transition flange (5) connected to the machine tool turret and a rotary flange (4) connected to the housing (1), and the transition flange (5) and the rotary flange (4) are coaxially arranged; the housing (1) has an integrated transmission mechanism. The rotary flange (4) is provided with symmetrically arranged adjustment grooves (7), which are arc-shaped and penetrate both sides of the rotary flange (4); the transition flange (5) is provided with positioning pins (6) in the middle of both sides, which are inserted into the arc-shaped grooves.

2. The adjustable-angle power tool holder according to claim 1, characterized in that: A locking nut (2) is fixedly provided on one side of the housing (1), and a tool chuck (3) is provided inside the locking nut (2); a drive shaft (8) is provided inside the housing (1) at the position corresponding to the central axis of the rotating flange (4).

3. The adjustable-angle power tool holder according to claim 2, characterized in that: The transmission mechanism includes two rotating shafts connected to the tool holder (3) and the transmission shaft (8) respectively, and two bevel gears connected to the two rotating shafts respectively, with the two bevel gears transmitting power to each other.

4. The adjustable-angle power tool holder according to claim 2, characterized in that: The transmission mechanism includes a worm gear connected to the transmission shaft (8) and a worm wheel connected to the tool chuck (3) via a rotating shaft.

5. The adjustable-angle power tool holder according to claim 2, characterized in that: The drive shaft (8) and the tool chuck (3) are arranged at 90° to each other on the housing (1).

6. The adjustable-angle power tool holder according to claim 1, characterized in that: Loosen the locating pin (6) to remove the clamping state of the locating pin (6) on the rotating flange (4), adjust the relative position between the rotating flange (4) and the transition flange (5) so that their original 0° overlapping state becomes an interleaved state, and then tighten the locating pin (6) to complete the relocking between the rotating flange (4) and the transition flange (5) and fix their relative position.

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