CN218926282U

CN218926282U - Groove machining tool with adjustable machining depth

Info

Publication number: CN218926282U
Application number: CN202120638488.6U
Authority: CN
Inventors: 李府; 赵正强
Original assignee: Sichuan Daoqin Cutting Tools Co ltd
Current assignee: Sichuan Daoqin Cutting Tools Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2023-04-28
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a groove machining tool with adjustable machining depth, relates to the field of groove machining tools, and provides an adjustable groove machining tool with adjustable machining depth and simple and convenient adjustment. The cutter comprises a cutter bar, a cutter plate, a blade and a fastener; the cutter bar is provided with a deformation groove and a sliding block groove, the deformation groove and the sliding block groove divide the front part of the cutter bar into a first clamping part and a second clamping part which are arranged at intervals up and down, and the wall surface of the sliding block groove comprises a supporting surface positioned on the first clamping part and a pressing inclined surface positioned on the second clamping part; the cutter plate comprises a cutter plate main body and a sliding block connected to one side of the cutter plate main body, and the sliding block is provided with a first positioning surface and a second positioning surface; the cutter plate main body is positioned at one side of the cutter bar, and the sliding block is positioned in the sliding block groove; the fastener is connected with the first clamping part and the second clamping part, and the distance between the first clamping part and the second clamping part is reduced, so that the first positioning surface is abutted against the supporting surface, the pressing inclined surface presses the second positioning surface, and the knife board moves inwards to the knife board main body to be abutted against the knife bar; the blade is fixed on the blade body.

Description

Groove machining tool with adjustable machining depth

Technical Field

The utility model relates to the field of groove machining tools, in particular to a groove machining tool with an adjustable machining depth.

Background

The outside round groove machining tool has a grooving tool of an integral construction, such as that disclosed in ZL 201120238810.2. The excircle groove processing cutter of integral type structure simple structure, but the cutting edge wear is broken and need whole change after the back to the groove of cutting different shapes or width needs different cutters, leads to the cutter kind many.

The 201710938213.2 patent discloses an annular groove machining tool with its insert mounted on a tool shank. The blade of the groove processing cutter is replaced after the blade is worn and broken, so that the cost is saved; blades of various specifications can be arranged on the cutter body, so that grooves of various specifications can be processed.

However, the groove cutting tool has disadvantages. Firstly, the relative position of the blade and the cutter bar is not adjustable, and in some cases, the machining depth can only be adjusted by moving the cutter bar so as to adjust the position of the blade, and the cutter is often required to be positioned again after adjustment, so that the operation is complicated. Secondly, the length of the exposed edge of the slot-machining tool blade to the blade bar determines its maximum machining depth. The longer the cutting edge is exposed out of the cutter bar, the larger the maximum machining depth is, but the torque born by the cutter bar and the cutter blade is increased during machining; conversely, the shorter the blade edge is exposed to the tool shank, the smaller the maximum machining depth, but the less torque the tool shank and the blade are subjected to during machining. The length of the exposed blade of the groove processing cutter is not adjustable, namely the maximum processing depth of the cutter is not adjustable. The length of the exposed blade rod is a conventional length, so that the cutter can adapt to most machining conditions, but a deeper groove with special design cannot be machined, and the application range is limited to a certain extent. If the length of the exposed edge of the blade is increased, the torque applied to the blade increases, so that the strength of the blade must be increased or a smaller amount of cutting work must be performed. Increasing the strength of the tool bar requires increasing the size of the tool bar or improving the material of the tool bar, resulting in increased cost of the tool bar. The machining speed is reduced by adopting smaller cutting amount during machining, and the efficiency is affected.

Disclosure of Invention

The utility model aims to solve the technical problems that: an adjustable groove processing cutter with adjustable processing depth and simple and convenient adjustment is provided.

The technical scheme adopted for solving the problems is as follows: the groove machining tool with the adjustable machining depth comprises a cutter bar, a cutter plate, a blade and a fastener; the cutter bar is provided with a deformation groove and a sliding block groove which extend backwards from the front end of the cutter bar, the length of the sliding block groove is smaller than that of the deformation groove, the deformation groove and the sliding block groove divide the front part of the cutter bar into a first clamping part and a second clamping part which are arranged at intervals up and down, and the wall surface of the sliding block groove comprises a supporting surface positioned on the first clamping part and a pressing inclined surface positioned on the second clamping part; the cutter plate comprises a cutter plate main body and a sliding block connected to one side of the cutter plate main body, and the sliding block is provided with a first positioning surface and a second positioning surface; the cutter plate main body is positioned at one side of the cutter bar, and the sliding block is positioned in the sliding block groove; the fastener is connected with the first clamping part and the second clamping part, and the distance between the first clamping part and the second clamping part is reduced, so that the first positioning surface is abutted against the supporting surface, the pressing inclined surface presses the second positioning surface, and the knife board moves inwards to the knife board main body to be abutted against the knife bar; the blade is fixed on the blade body.

Further is: the supporting surface is horizontally arranged, and the inclination angle of the pressing inclined surface is a, wherein a=40°.

Further is: the second clamping part is positioned above the first clamping part.

Further is: the fastener passes through the second clamping part and is in threaded connection with the first clamping part.

Further is: the knife board main body and the slide block are made into a whole.

Further is: the blade clamping groove, the blade locating surface positioned at the rear end of the blade clamping groove and spanner holes positioned at two sides of the blade clamping groove are formed in the blade main body, and the blade is inserted into the blade clamping groove and abuts against the blade locating surface, and is clamped by means of elastic deformation of the blade main body.

The beneficial effects of the utility model are as follows: 1. loosening the fastener, wherein the first clamping part and the second clamping part rebound a little, and the sliding block is not clamped any more; the blade position can be adjusted by directly moving the cutter plate, so that the machining depth of the groove machining cutter is adjusted, the cutter bar position does not need to be adjusted, and the adjustment operation is simple. After the adjustment, the fastener is screwed down, the cutter bar is used for fixing the plate again, and additional positioning and cutter setting adjustment are not needed.

2. The length of the blade exposed out of the blade rod is adjusted by adjusting the position of the blade, so that the maximum machining depth of the groove machining tool is adjusted, and the length of the blade exposed out of the blade rod is the conventional length during conventional machining, so that the conventional cutting dosage can be used for machining, and the machining efficiency is ensured. When the deep groove is machined, the length of the cutter blade exposed out of the cutter rod is increased, namely the maximum machining depth of the cutter is increased, so that the deep groove can be machined. At the moment, the cutting amount is properly reduced, and the application range of the cutter is increased although the processing efficiency is reduced, so that the cutter is suitable for a plurality of grooves with special requirements on depth while being suitable for the conventional situation.

Drawings

FIG. 1 is a perspective view of a groove machining tool with adjustable machining depth;

FIG. 2 is a front view of a groove machining tool with adjustable machining depth;

FIG. 3 is a top view of a groove cutting tool with adjustable machining depth;

FIG. 4 is a left side view of a groove cutting tool with adjustable machining depth;

marked in the figure as: the tool bar 1, the deformation groove 11, the slider groove 12, the support surface 121, the pressing inclined surface 122, the first clamping portion 13, the second clamping portion 14, the tool plate 2, the tool plate body 21, the insert clamping groove 211, the wrench hole 212, the insert positioning surface 213, the slider 22, the first positioning surface 221, the second positioning surface 222, the insert 3, and the fastener 4.

Detailed Description

The utility model is further described below with reference to the drawings and the detailed description.

As shown in fig. 1 to 4, the groove processing tool with adjustable processing depth includes a tool bar 1, a tool plate 2, a blade 3, and a fastener 4; the cutter bar 1 is provided with a deformation groove 11 and a sliding block groove 12 which extend backwards from the front end of the cutter bar 1, the length of the sliding block groove 12 is smaller than that of the deformation groove 11, the deformation groove 11 and the sliding block groove 12 divide the front part of the cutter bar 1 into a first clamping part 13 and a second clamping part 14 which are arranged at intervals up and down, and the wall surface of the sliding block groove 12 comprises a supporting surface 121 positioned on the first clamping part 13 and a pressing inclined surface 122 positioned on the second clamping part 14; the cutter plate 2 comprises a cutter plate main body 21 and a sliding block 22 connected to one side of the cutter plate main body 21, wherein the sliding block 22 is provided with a first positioning surface 221 and a second positioning surface 222; the cutter plate main body 21 is positioned at one side of the cutter bar 1, and the sliding block 22 is positioned in the sliding block groove 12; the fastener 4 connects the first clamping part 13 and the second clamping part 14, and reduces the distance between the first clamping part 13 and the second clamping part 14, so that the first positioning surface 221 abuts against the supporting surface 121, and the pressing inclined surface 122 presses the second positioning surface 222 and moves the cutter plate 2 inwards until the cutter plate main body 21 abuts against the cutter bar 1; the blade 3 is fixed to the blade body 21.

When the machining depth or the maximum machining depth of the groove machining tool is adjusted, the fastener 4 is loosened, the first clamping part 13 and the second clamping part 14 rebound a little, and the sliding block 22 is not clamped any more; the position of the blade 3 can be adjusted by directly moving the cutter plate 2, so that the machining depth and the maximum machining depth of the groove machining cutter are adjusted, the position of the cutter bar 1 is not required to be adjusted, and the adjustment operation is simple. After adjustment, the fastener 4 is screwed down, the cutter bar 1 re-fixes the plate 2, and no additional positioning and cutter setting adjustment is needed.

The position and shape of the slider groove 12 should match that of the blade 2, and the first clamping portion 13 and the second clamping portion 14 rebound only a small amount when the fastener 4 is released; the supporting surface 121 and the first positioning surface 221, the pressing inclined surface 122 and the second positioning surface 222, and the side surface of the cutter bar 1 and the cutter plate main body 21 should have only a slight gap. The slide 22 should be disposed at a rear position, and the slide 22 should be spaced from the front end of the blade body 21 sufficiently to avoid the slide 22 touching the workpiece during machining from affecting the maximum machining depth of the slot machining tool.

As shown in fig. 4, the pressing inclined surface 122 has an inward horizontal component to the pressing force of the second positioning surface 222, so that the blade 2 moves inward, and the blade body 21 is attached to the blade bar 1. The cutter bar 2 is closely attached to the cutter bar 1 by three surfaces, and the contact area is large, so that the cutter bar 1 is very reliable in fixing the cutter bar 2.

The more specific arrangement mode of the utility model is preferably as follows: the supporting surface 121 is horizontally arranged, and the inclination angle of the pressing inclined surface 122 is a, a=45°; the second clamping part 14 is positioned above the first clamping part 13; the fastener 4 passes through the second clamping portion 14 and is threadedly coupled to the first clamping portion 13.

The blade body 21 and the slider 22 may be welded, and in order to secure the manufacturing accuracy of the blade 2, it is preferable that the blade body 21 and the slider 22 are integrally formed.

The blade 3 is preferably fixed to the blade body 21 by providing the blade body 21 with a blade holding groove 211, a blade positioning surface 213 located at the rear end of the blade holding groove 211, and wrench holes 212 located on both sides of the blade holding groove 211, inserting the blade 3 into the blade holding groove 211 and abutting against the blade positioning surface 213, and holding the blade 3 by elastic deformation of the blade body 21 itself. Insertion of the wrench hole 212 with a special wrench opens the blade holding groove 211 a small amount, thereby removing the blade 3. This arrangement is known to those skilled in the art and similar knife boards are also disclosed in the application 201780084637.5, and therefore will not be described in detail in this specification.

Graduations may be provided on the upper surfaces of the cutter bar 1 and the cutter plate body 21 to identify the specific relative positions of the blade 3 and the cutter bar 1.

Claims

1. Machining depth adjustable groove machining cutter, its characterized in that: comprises a cutter bar (1), a cutter plate (2), a blade (3) and a fastener (4); the cutter bar (1) is provided with a deformation groove (11) and a sliding block groove (12) which extend backwards from the front end of the cutter bar (1), the length of the sliding block groove (12) is smaller than that of the deformation groove (11), the deformation groove (11) and the sliding block groove (12) divide the front part of the cutter bar (1) into a first clamping part (13) and a second clamping part (14) which are arranged at intervals up and down, and the wall surface of the sliding block groove (12) comprises a supporting surface (121) positioned on the first clamping part (13) and a pressing inclined surface (122) positioned on the second clamping part (14); the cutter plate (2) comprises a cutter plate main body (21) and a sliding block (22) connected to one side of the cutter plate main body (21), wherein the sliding block (22) is provided with a first positioning surface (221) and a second positioning surface (222); the cutter plate main body (21) is positioned at one side of the cutter bar (1), and the sliding block (22) is positioned in the sliding block groove (12); the fastener (4) is connected with the first clamping part (13) and the second clamping part (14) and reduces the distance between the first clamping part and the second clamping part, so that the first positioning surface (221) is abutted against the supporting surface (121), the pressing inclined surface (122) presses the second positioning surface (222) and the knife board (2) moves inwards to the knife board main body (21) to be abutted against the knife bar (1); the blade (3) is fixed on the blade body (21).

2. The adjustable depth of finish groove machining tool of claim 1, wherein: the supporting surface (121) is horizontally arranged, and the inclination angle of the pressing inclined surface (122) is a, wherein a=45°.

3. The adjustable depth of finish groove machining tool of claim 2, wherein: the second clamping part (14) is positioned above the first clamping part (13).

4. A groove machining tool with adjustable machining depth according to claim 3, characterized in that: the fastener (4) passes through the second clamping part (14) and is in threaded connection with the first clamping part (13).

5. The adjustable depth of finish machining groove cutting tool of claim 4, wherein: the blade body (21) is integrally formed with the slider (22).

6. The adjustable depth of finish machining groove cutting tool of claim 5, wherein: the blade body (21) is provided with a blade clamping groove (211), a blade locating surface (213) positioned at the rear end of the blade clamping groove (211) and wrench holes (212) positioned at two sides of the blade clamping groove (211), the blade (3) is inserted into the blade clamping groove (211) and abuts against the blade locating surface (213), and the blade body (21) clamps the blade (3) by means of elastic deformation of self materials.