Milling cutter capable of conveniently adjusting milling depth

Abstract

The utility model discloses a milling cutter capable of conveniently adjusting milling depth, which relates to the field of milling cutters and comprises a connecting sleeve, a telescopic column is inserted into the connecting sleeve, a milling cutter column is fixed at one end, extending out of the connecting sleeve, of the telescopic column, and a plurality of through grooves are annularly distributed on the side wall of the connecting sleeve; according to the milling cutter capable of conveniently adjusting the milling depth, on the aspect of driving a plurality of positioning columns to carry out locking operation, a limiting sleeve tightly connected with a connecting sleeve through threads is introduced, the positioning columns can effectively abut against each other at the same time, by means of the design, the unlocking and locking actions of the positioning columns can be synchronously completed, one-by-one operation is not needed, and the working efficiency is improved. The operation steps are greatly simplified, a user only needs to simply rotate the limiting sleeve, adjustment can be easily achieved, the operation process is more convenient and efficient, and meanwhile the working efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of milling cutter, especially to a milling cutter convenient to adjust milling depth. BACKGROUND

[0002] In the field of mechanical processing, milling is a common processing method used to remove material from workpieces to achieve the desired shape and size. During the milling process, the adjustment of milling depth is crucial for processing accuracy and efficiency. Traditional milling cutter designs often have the problem of inconvenient adjustment of milling depth, leading to complex operation and difficulty in ensuring accuracy.

[0003] Existing milling cutter structures mostly adopt fixed connection methods, which require additional tools or equipment for adjusting the milling depth, increasing the complexity of operation and reducing work efficiency. At the same time, due to the difficulty in controlling accuracy during the adjustment process, it often leads to unstable processing quality.

[0004] To solve the above problems, some milling cutter designs with adjustable milling depth have appeared in the market. However, these designs mostly have the problems of complex structure, inconvenient operation, or low adjustment accuracy. For example, a milling cutter convenient to adjust milling depth on the market installs the milling cutter on a telescopic column, which is telescopic mounted on a sleeve. Four bolts are connected through the threads of the sleeve, and the end of the bolt is inserted into the positioning hole on the telescopic column to complete the adjustment of the extension length of the telescopic column, which is the milling depth. However, this structure arrangement leads to too tedious adjustment operation, multiple operation steps, and inconvenient adjustment. SUMMARY

[0005] To make up for the deficiencies of the prior art, the purpose of the utility model is to provide a milling cutter convenient to adjust milling depth, which reduces the adjustment steps and improves the adjustment efficiency.

[0006] To solve the problems of the prior art, the technical scheme of the utility model is as follows:

[0007] A milling cutter convenient to adjust milling depth, comprising a connecting sleeve, a telescopic column inserted into the connecting sleeve, a milling cutter column fixed to one end of the telescopic column extending out of the connecting sleeve, a plurality of through grooves annularly distributed on the side wall of the connecting sleeve, a positioning column inserted into the through groove, and the end of the positioning column close to the telescopic column being hemispherical.

[0008] A plurality of groups of positioning grooves are annularly distributed on the outer wall of the telescopic column, each group of positioning grooves is equally spaced along the axial direction of the telescopic column, and each group of positioning grooves corresponds to one through groove in position, and the positioning column cooperates with the positioning groove.

[0009] The outer wall of the connecting sleeve is rotationally provided with a limiting sleeve, the top opening of the limiting sleeve gradually increases in diameter from bottom to top, the top opening cooperates with the positioning column, and a lifting assembly is arranged between the connecting sleeve and the limiting sleeve.

[0010] Preferably, the lifting assembly comprises an external thread formed on the outer wall of the lower end of the connecting sleeve and an internal thread formed on the inner wall of the limiting sleeve, and the limiting sleeve is threadedly connected with the connecting sleeve through the external thread and the internal thread.

[0011] Preferably, the end of the positioning column close to the top opening is also provided in a hemispherical shape.

[0012] Preferably, the limiting sleeve is composed of a rotating sleeve at the lower end and a pressing sleeve fixed to the outer wall of the rotating sleeve at the upper end, the internal thread is formed on the inner wall of the rotating sleeve, and the top opening of the pressing sleeve gradually increases in diameter from bottom to top.

[0013] Preferably, a plurality of anti-skid lines are equiangularly spaced apart on the outer wall of the rotating sleeve.

[0014] Preferably, the four groups of positioning grooves are arranged in a ring array on the telescopic column, and the four through grooves are arranged in a ring array on the connecting sleeve.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The utility model discloses a plurality of circumferentially distributed through grooves and positioning columns, and the design concept of the prior art is used to implement multi-angle locking and constraint on the periphery of the telescopic column, ensuring the stability of the locking of the telescopic column. In terms of driving the plurality of positioning columns to lock, the utility model innovatively introduces a limiting sleeve closely connected with the connecting sleeve through a thread, realizing the simultaneous effective locking of the plurality of positioning columns. This design enables the unlocking and locking actions of the positioning columns to be completed synchronously, without the need for one-by-one operation, greatly simplifying the operation steps. Users only need to rotate the limiting sleeve simply, and the adjustment can be easily realized, which not only makes the operation process more convenient and efficient, but also significantly improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model.

[0018] Figure 2 It is a positioning groove position structure schematic view of the utility model.

[0019] Figure 3 It is a through groove position structure schematic view of the utility model.

[0020] Figure 4 It is an internal thread position structure schematic view of the utility model.

[0021] Figure 5 It is a partial sectional view structural schematic diagram of the utility model.

[0022] Figure 6 It is a second embodiment structural schematic diagram of the utility model.

[0023] Reference Signs: 1, connecting sleeve; 2, telescopic column; 3, milling cutter column; 4, through groove; 5, positioning column; 6, positioning groove; 7, limiting sleeve; 701, rotating sleeve; 702, abutting sleeve; 7021, top opening; 8, external thread; 9, internal thread; 10, anti-skid line; 11, limiting block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Embodiment one, please refer to Figures 1 to 5 The embodiment provides a milling cutter with convenient milling depth adjustment, which comprises a connecting sleeve 1, a telescopic column 2 is inserted into the connecting sleeve 1, one end of the telescopic column 2 extending out of the connecting sleeve 1 is fixed with a milling cutter column 3, four through grooves 4 are arranged in an annular array on the side wall of the connecting sleeve 1, a positioning column 5 is inserted into the inner side of the through groove 4, and the end of the positioning column 5 close to the telescopic column 2 is provided in a hemispherical shape.

[0026] Four groups of positioning grooves 6 are arranged in an annular array on the outer wall of the telescopic column 2, each group of positioning grooves 6 is distributed at equal intervals along the axial direction of the telescopic column 2, and the position of each group of positioning grooves 6 corresponds to one through groove 4 respectively, and the positioning column 5 is matched with the positioning groove 6.

[0027] The design concept of the prior art that the telescopic column 2 is locked and constrained at multiple angles on the periphery is used, so that the stability of the locking of the telescopic column 2 is ensured.

[0028] The end of the positioning column 5 close to the telescopic column 2 abuts against the inner wall of the positioning groove 6 to realize the effect of locking the telescopic column 2, and adjusting the length of the telescopic column 2 extending out of the connecting sleeve 1 can complete the adjustment work of the milling depth of the milling cutter on the milling cutter column 3.

[0029] The outer wall of the connecting sleeve 1 is rotationally provided with a limiting sleeve 7, the limiting sleeve 7 is composed of a rotating sleeve 701 located at the lower end and a abutting sleeve 702 located at the upper end and fixed to the outer wall of the rotating sleeve 701, the inner thread 9 is opened in the inner wall of the rotating sleeve 701, the top opening 7021 of the abutting sleeve 702 gradually increases in diameter from bottom to top, the outer thread 8 is opened on the outer wall of the lower end of the connecting sleeve 1, the rotating sleeve 701 is threadedly connected with the connecting sleeve 1 through the outer thread 8 and the inner thread 9, and the one end of the positioning column 5 close to the top opening 7021 is also provided in a hemispherical shape;

[0030] After the telescopic column 2 is adjusted, the rotating sleeve 701 is rotated, so that the rotating sleeve 701 moves axially upward along the connecting sleeve 1, so that the top opening 7021 gradually abuts against the end of the four positioning columns 5 close to the top opening 7021, thereby pushing the positioning column 5 to slide to the side close to the telescopic column 2, and finally making the top opening 7021 abut against the end of the positioning column 5, and the other end of the positioning column 5 abuts against the inner wall of the positioning groove 6, thereby completing the locking work of the telescopic column 2;

[0031] It should be emphasized that before adjusting the telescopic column 2, the telescopic column 2 needs to be unlocked, which can be achieved by rotating the rotating sleeve 701 in the opposite direction, so that the rotating sleeve 701 moves downward, it should be emphasized that the descending distance of the abutting sleeve 702 needs to ensure that the positioning column 5 is always inside the abutting sleeve 702, so as to avoid the positioning column 5 from running out of the through groove 4, and the outer wall of the rotating sleeve 701 is provided with a plurality of anti-skid lines 10 at equal angles, which can improve the friction between the hand and the outer wall of the rotating sleeve 701.

[0032] In summary, in the aspect of driving the plurality of positioning columns 5 to perform locking operation, the limiting sleeve 7 connected by threads can effectively lock the plurality of positioning columns 5 at the same time, which can synchronize the unlocking and locking actions of the positioning column 5, without the need for individual operation, thereby greatly simplifying the operation steps. The user only needs to rotate the limiting sleeve 7, which can easily realize the adjustment, not only the operation process is more convenient and efficient, but also the work efficiency is significantly improved.

[0033] Embodiment two, please refer to Figure 6 The lower end of the outer wall of the connecting sleeve 1 is fixedly provided with a limiting block 11, the limiting block 11 is used for limiting the descending distance of the limiting sleeve 7, and when the bottom of the limiting sleeve 7 abuts against the limiting block 11, the positioning column 5 can be prevented from slipping off and being separated from the through groove 4.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A milling cutter with convenient adjustment of milling depth, comprising a connecting sleeve (1), a telescopic column (2) is inserted into the connecting sleeve (1), a milling cutter column (3) is fixed at one end of the telescopic column (2) which extends out of the connecting sleeve (1), characterized in that, The side wall of the connecting sleeve (1) is annularly provided with a plurality of through grooves (4), and the inner side of the through groove (4) is inserted with a positioning column (5), and the end of the positioning column (5) close to the telescopic column (2) is provided in a hemispherical shape; The outer wall of the telescopic column (2) is annularly provided with a plurality of groups of positioning grooves (6), each group of positioning grooves (6) is equally spaced along the axial direction of the telescopic column (2), and each group of positioning grooves (6) is respectively corresponding to one through groove (4), and the positioning column (5) is matched with the positioning groove (6); The outer wall of the connecting sleeve (1) is rotatably provided with a limiting sleeve (7), the top opening (7021) of the limiting sleeve (7) gradually increases in diameter from bottom to top, the top opening (7021) is matched with the positioning column (5), and the connecting sleeve (1) and the limiting sleeve (7) are provided with a lifting assembly.

2. The easy adjustable depth of cut cutter according to claim 1, wherein, The lifting assembly comprises an outer thread (8) formed on the outer wall of the lower end of the connecting sleeve (1) and an inner thread (9) formed on the inner wall of the limiting sleeve (7), and the limiting sleeve (7) and the connecting sleeve (1) are threadedly connected through the outer thread (8) and the inner thread (9).

3. The easy adjustable depth of cut cutter according to claim 1, wherein, The end of the positioning column (5) close to the top opening (7021) is also provided in a hemispherical shape.

4. The easy adjustable depth of cut cutter according to claim 2, wherein, The limiting sleeve (7) is composed of a rotating sleeve (701) at the lower end and a pressing sleeve (702) fixed to the outer wall of the rotating sleeve (701) at the upper end, the inner thread (9) is formed on the inner wall of the rotating sleeve (701), and the diameter of the top opening (7021) of the pressing sleeve (702) gradually increases from bottom to top.

5. The easy adjustable depth of cut cutter according to claim 4, wherein, A plurality of anti-skid lines (10) are equally angularly spaced on the outer wall of the rotating sleeve (701).

6. The easy adjustable depth of cut cutter according to claim 1, wherein, The positioning groove (6) is provided with four groups on the telescopic column (2), and the four groups of positioning grooves (6) are annularly arranged on the telescopic column (2), the through groove (4) is provided with four, and the four through grooves (4) are annularly arranged on the connecting sleeve (1).

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