CN216065590U - Cutter square structure and turret tool rest of numerical control lathe - Google Patents

Abstract

The utility model belongs to the field of machining equipment. The problems that the cutter vibration phenomenon exists on the basis of the cutter square structure used for machining the multi-groove part at present, the machining precision is unstable and the universality is not realized are solved. The utility model provides an improved cutter square structure for fixing a cutter. The cutter square structure comprises a first cutter square body, a second cutter square body, a side fixing plate and a plurality of precise gaskets. The first blade square body is provided with a first extending body; the second blade square body is provided with a third extending body; the precision gaskets and the cutters are arranged in the accommodating cavities formed by the first cutter square body, the first extending body, the second cutter square body and the third extending body at intervals; the cutter is fastened by a first adjusting hole group provided on the third extension body and a second adjusting hole group provided on the side fixing plate. The improved knife square structure has universality and stable processing products. In addition, the utility model also discloses a turret tool rest of the numerical control lathe with the tool square structure.

Description

Cutter square structure and turret tool rest of numerical control lathe

Technical Field

The utility model relates to the field of machining equipment, in particular to a tool square structure and a turret tool rest of a numerical control lathe.

Background

When the number of the grooves to be machined is large and the distance between adjacent grooves is only 5-6mm or even smaller, at least two groove cutters are adopted for machining simultaneously to eliminate the cutter back-off phenomenon in order to ensure that the parts are qualified in machining.

The prior art adopts a knife square structure to clamp a groove knife, and the knife square mechanism comprises a first knife square body, a second knife square body and a guide groove. Wherein a slot cutter is clamped in a gap part formed between the first cutter square body and the second cutter square body; another channel knife is clamped in the channel. The cutter-relieving phenomenon is eliminated to a certain extent by the cutter-square structure, but when the groove cutter clamped by the cutter-square structure is used for processing a product, the problems of unstable processing precision and small applicability exist.

SUMMERY OF THE UTILITY MODEL

Based on the problems to be solved, the utility model provides an improved cutter square structure and a turret tool rest of a numerical control lathe with the improved cutter square structure. The distance between the cutters is controlled by tightening the cutters from horizontal and vertical directions by means of adjusting screws in the set of adjusting holes, using precision shims of different thicknesses. The knife square structure has universality, can eliminate the knife vibration phenomenon of the knife square structure in the prior art, and is more stable in processing.

The utility model discloses a knife square structure used for fixing a cutting knife, which comprises:

a first cube-corner body having a first extension.

The second blade side body is arranged above the first blade side body and is connected with the first blade side body. The second blade square body is provided with a third extending body. The third extending body, the second blade square body, the first blade square body and the first extending body form an accommodating cavity.

The precision gaskets and the cutting knife are arranged in the accommodating cavity at intervals.

The side fixing plate is arranged on one side of the accommodating cavity, which is opposite to the first blade square body; for clamping the cutter.

Preferably, the first blade square body has a first positioning part; the second cutter square body is provided with a second positioning part; the first positioning part and the second positioning part are matched in position and shape and used for positioning the second cutter square body at the preset position of the first cutter square body.

Preferably, the first positioning portion comprises a first left positioning section, a first horizontal section and a first right positioning section which are presented on the cross section of the first blade body, and the first left positioning section, the first horizontal section and the first right positioning section are sequentially connected; the second positioning part comprises a second left positioning section, a second horizontal section and a second right positioning section which are presented on the cross section of the second cutter square body, and the second left positioning section, the second horizontal section and the second right positioning section are sequentially connected; the first left positioning section is matched with the second left positioning section in position and shape; the first horizontal section is matched with the second horizontal section in position and shape; the first right positioning section is matched with the second right positioning section in position and shape.

Preferably, the included angle between the first left positioning section and the vertical direction is 30 degrees; the included angle between the first right positioning section and the vertical direction, the included angle between the second right positioning section and the vertical direction are 60 degrees.

Preferably, the first blade square body and the second blade square body are connected together through a bolt.

Preferably, a first adjusting hole group is formed in the third extending body of the second blade square body and used for configuring an adjusting screw; when the first adjusting hole group is provided with the adjusting screw, the precise gasket and the cutter in the accommodating cavity can be fastened in the vertical direction.

Preferably, the side fixing plate is provided with a second adjusting hole group for configuring an adjusting screw; when the second adjusting hole group is provided with the adjusting screw, the precise gasket and the cutter in the accommodating cavity can be fastened in the horizontal direction.

Preferably, the side fixing plate further comprises a second connecting bolt hole group and a third connecting bolt hole group; a second positioning bolt hole group is arranged on the side surface of the first extension body; a third positioning bolt hole group is arranged on the side surface of the third extending body; the second connecting bolt hole group corresponds to the second positioning bolt hole group in position, and the third connecting bolt hole group corresponds to the third positioning bolt hole group in position; the upper end and the lower end of the side fixing plate are respectively connected with the third extending body and the first extending body through the second connecting bolt hole and the third connecting bolt hole.

Based on the tool square structure, the utility model also provides a turret tool rest of the numerical control lathe, wherein a cutter on a rotating tool rest is fixedly held by the tool square structure disclosed by the utility model and is arranged on the rotating tool rest on the turret tool rest.

As can be seen from the above description, the knife square structure provided by the utility model has the following beneficial effects:

1. the cutter is not connected with other components, but is placed in the accommodating cavity in a gasket-cutter-gasket arrangement mode, and the cutter is fastened from the horizontal direction and the vertical direction through the third extending body and the adjusting screw in the adjusting hole group on the side fixing plate, so that the cutter vibration phenomenon of the cutter square structure in the prior art is eliminated, the machining process is more stable, and the dimensional accuracy of machined parts is more stable.

2. The distance between the cutters is controlled by using the precision gaskets with different thicknesses, so that parts with different groove widths and sizes can be machined without changing the structure of the blade, and the universal cutter is universal.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a cross-sectional view of a prior art knife-square structure.

Fig. 2 is a schematic view of the improved knife square structure of the utility model.

Fig. 3 is a side view of the improved blade structure of the present invention.

Fig. 4 is a schematic cross-sectional view of the first and second blade square bodies along line a-a'.

Fig. 5 is a schematic view of the improved clamping cutter with a square structure.

Reference numerals: 100-a first cutting tool body, 101-a notch part formed by the first cutting tool body and a second cutting tool body, 102-a guide groove, 103-a first extending body, 104-a second extending body, 105-a first positioning bolt hole group, 106-a second positioning bolt hole group, 10-a first positioning part, 11-a first left positioning section, 12-a first horizontal section, 13-a first right positioning section, 200-a second cutting tool body, 201-a first connecting bolt hole group, 202-a third extending body, 203-a first adjusting hole group, 204-a third positioning bolt hole group, 20-a second positioning part, 21-a second left positioning section, 22-a second horizontal section, 23-a second right positioning section, 300-a side fixing plate, 301-a second connecting bolt hole group, 302-a second adjusting hole group, 303-a third connecting bolt hole group, 400-a precision gasket, 500-a cutter and 700-an accommodating cavity.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Embodiments of the present invention/utility model will be described in detail below with reference to the drawings.

At present, when a part with a large number of grooves and a distance between adjacent grooves of only 5-6mm or less is machined, at least two groove cutters are required to be machined simultaneously so as to eliminate the phenomenon of cutter back-off. The prior art uses a blade square configuration as shown in fig. 1 to hold a trench blade. Comprises a first blade square body 100 and a second blade square body 200. The first blade body 100 and the second blade body 200 form a notch portion 101. One of the groove cutters is clamped at the notch part 101; another channel knife is clamped in the channel 102. Although the cutter square structure can eliminate the cutter back-off phenomenon to a certain extent, the following problems exist: the problems of 'cutter vibration' and unstable processing can occur in the cutting process; the distance between the cutters can not be adjusted, and the cutter is only suitable for machining parts with one specification and does not have the problem of universality; the cutter and the cutter holder are not fit together, and the precision of the machining size is not stable.

Based on there is not the problem of universality in current sword side structure, this application provides a sword side structure after the improvement for the fixing cutter. The structure of the tool is shown in fig. 2-5, and comprises a first tool square body 100, a second tool square body 200, a side fixing plate 300 and a precision gasket 400.

The first blade body 100 has a first positioning portion 10, a first positioning bolt hole group 105, a first extension 103, and a second extension 104.

The first positioning portion 10 is a groove-shaped portion, and is formed at the top end of the first blade body 100 along the length direction thereof. The first positioning portion 10 includes, in cross section, a first left positioning section 11, a first horizontal section 12, and a first right positioning section 13. The first left positioning section 11, the first horizontal section 12 and the first right positioning section 13 are connected in sequence. Wherein, the included angle between the first left positioning section 11 and the vertical direction is 30 degrees, and the included angle between the first right positioning section 13 and the vertical direction is 60 degrees.

The first positioning bolt hole set 105 is opened on the first horizontal section 12 of the first positioning portion 10, and the axial center thereof is perpendicular to the first horizontal section 12.

The first extending body 103 is located at the bottom of the side surface of the first blade body 100, and the extending direction is perpendicular to the first blade body 100, that is, the first extending body 103 and the first blade body 100 form a reverse "L" shape. The first extension body 103 is provided with a second positioning bolt hole group 106 on the side surface far away from the first blade body 100.

The second extension 104 is located at the top of the opposite side of the first blade body 100 away from the first extension 103, i.e. the second extension 104 forms an inverse "Z" shape with the first extension 103 and the first blade body 100.

The second blade body 200 is disposed above the first blade body 100, and has a width and length equal to those of the first blade body 100. The second blade body 200 has a second positioning portion 20, a first connecting bolt hole group 201, and a third extension 202.

The third extending body 202 is located at the top of the side surface of the second blade body 200, the third extending body 202 is parallel to the first extending body 103, the extending directions are the same, and the extending lengths are the same; that is, the third extension 202 and the second blade body 200 form an inverted "L" shape. The third extending body 202 is provided with a first adjusting hole set 203, the opening direction of the first adjusting hole set 203 is perpendicular to the first extending body 103, and the adjusting hole set is a threaded through hole. The first set of adjustment holes 203 may be configured with adjustment screws.

The third positioning bolt hole group 204 is located on the side of the third extending body 202 away from the second square tool body 200, and the opening direction thereof is perpendicular to the second square tool body 200. Each bolt hole of the third set of positioning bolt holes 204 does not pass through a bolt hole of the first set of connecting bolt holes 201.

The second positioning portion 20 is located on an end of the second blade body 200 away from the third extending body 202. The position and shape of the first positioning portion 10 are adapted. For cooperating with the first positioning portion 10 to position the second blade square body 200 at a predetermined position of the first blade square body. The cross section of the second positioning portion 20 includes a second left positioning section 21, a second horizontal section 22, and a second right positioning section 23. The second left positioning section 21, the second horizontal section 22 and the second right positioning section 23 are sequentially connected and are in one-to-one correspondence with the positions and the shapes of the first left positioning section 11, the first horizontal section 12 and the first right positioning section 13 respectively. The included angle between the second left positioning section 21 and the vertical direction is 30 degrees, and the included angle between the second right positioning section 23 and the vertical direction is 60 degrees.

The first connecting bolt hole group 201 corresponds to the first positioning bolt hole group 105 in position and size, and is used for being matched with the first positioning bolt hole group 105 to fix the second cutting tool square body 200 and the first cutting tool square body.

When the second blade body 200 is connected to the first blade body 100, the third extension 202 forms a receiving cavity 700 with the second blade body 200, the first blade body 100 and the first extension 103. The accommodating cavity 700 is used for accommodating the cutter 500.

There are several precision shims 400. A plurality of precision shims 400 are placed in a spaced array with the cutting blade 500, i.e., in the form of a precision shim 400-cutting blade 500-precision shim 400 array in the receiving cavity 700. The distance between the blades 500 is varied by using precision shims 400 of different thicknesses. Parts with different groove widths and sizes can be machined without changing the structure of the blade. Has universality. Meanwhile, the cutter is not connected with other components, so that the problem of uncomfortable fitting does not exist.

The side fixing plate 300 is disposed at one side of the accommodating cavity 700, and the upper end and the lower end of the side fixing plate are respectively connected with the third extending body 202 and the first extending body 103. For clamping the cutting knife 500 and the precision shim 400 in the receiving cavity 700. The side fixing plate 300 has a second adjustment hole group 302, a second connecting bolt hole group 301, and a third connecting bolt hole group 303.

The second set of connecting bolt holes 301 correspond in position to the second set of positioning bolt holes 106.

The third set of connecting bolt holes 303 correspond in position to the third set of positioning bolt holes 204.

The second and third coupling bolt hole groups 301 and 303 are used to fix the side fixing plate 300.

The second adjustment hole group 302 is located between the second connecting bolt hole group 301 and the third connecting bolt hole group 303. The second adjustment hole group 302 is a threaded through hole whose axial center is parallel to the axial center of the second connecting bolt hole group 301.

When the first adjusting hole group 203 and the second adjusting hole group 302 are configured with adjusting screws, the precision gasket 400 and the cutter 500 in the accommodating cavity 700 can be fastened in the vertical direction and the horizontal direction respectively, and the phenomenon of cutter vibration during machining can be eliminated.

As apparent from the above description, the present application discloses a blade structure in which a cutting blade is not connected to other components, but the cutting blade 500 and a precision shim 400 are placed in a shim-cutter-shim arrangement in a receiving cavity 700 formed by the first and second blade bodies 100 and 200. Fastening the cutter from the vertical direction through an adjustment hole group 203 provided on the second blade body 200; a side fixing plate 300 is further arranged, and the adjusting hole group 302 on the side fixing plate 300 is used for fixing a cutter in the horizontal direction, so that the phenomenon of cutter vibration during machining can be eliminated, and the machining is more stable; meanwhile, the machining precision is more stable. According to the groove width size of the machined part, the precision gaskets with different thicknesses are used, the structure of the cutter does not need to be changed, and the universal tool has universality.

Based on the cutter square structure of the embodiment, the application also provides a turret tool rest of the numerical control lathe with the cutter square structure. Wherein the cutting knife is held by the knife square structure disclosed in the application and is arranged on the rotating knife rest of the turret knife rest.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A blade structure for holding a cutting blade (500), comprising:

a first blade square body (100) having a first extension body (103);

a second blade body (200) which is arranged above the first blade body (100) and has a third extension body (202); the third extension body (202) and the second blade body (200), the first blade body (100) and the first extension body (103) form a housing cavity (700);

a plurality of precision gaskets (400), wherein the precision gaskets (400) and the cutting knife (500) are arranged in the accommodating cavity (700) at intervals;

the side fixing plate (300) is placed on one side, opposite to the first knife square body (100), of the accommodating cavity (700); for clamping the cutter (500).

2. The blade structure of claim 1, wherein: the side fixing plate (300) is provided with a second adjusting hole group (302) for configuring an adjusting screw; when the second adjusting hole group (302) is provided with an adjusting screw, the precise gasket (400) and the cutter (500) in the accommodating cavity (700) can be fastened in the horizontal direction.

3. The blade structure of claim 1 or 2, wherein: the second cutter square body (200) is provided with a first adjusting hole group (203) for configuring an adjusting screw; when the first adjusting hole group (203) is provided with an adjusting screw, the precise gasket (400) and the cutter (500) in the accommodating cavity (700) can be fastened in the vertical direction.

4. The blade square structure of claim 3, wherein the first blade square body (100) and the second blade square body (200) are bolted together.

5. The blade structure of claim 3, wherein: the first set of adjustment holes (203) is provided on the second extension body (104).

6. The toolsquare structure of claim 1, wherein the side securing plate (300) further comprises a second set of connecting bolt holes (301) and a third set of connecting bolt holes (303); a second positioning bolt hole group (106) is arranged on the side surface of the first extending body (103); a third positioning bolt hole group (204) is arranged on the side surface of the third extending body (202); the second set of connecting bolt holes (301) corresponds in position to the second set of positioning bolt holes (106), and the third set of connecting bolt holes (303) corresponds in position to the third set of positioning bolt holes (204); the upper end and the lower end of the side fixing plate (300) are respectively connected with the third extending body (202) and the first extending body (103) through the second connecting bolt hole group (301) and the third connecting bolt hole group (303).

7. The blade structure of claim 1, wherein: the first blade body (100) is provided with a first positioning part (10); the second square cutting tool body (200) is provided with a second positioning part (20); the first positioning part (10) and the second positioning part (20) are matched in position and shape and used for positioning the second square cutter body (200) at a preset position of the first square cutter body (100).

8. The blade structure of claim 7, wherein: the first positioning part (10) comprises a first left positioning section (11), a first horizontal section (12) and a first right positioning section (13) which are presented on the cross section of the first blade body (100), and the first left positioning section (11), the first horizontal section (12) and the first right positioning section (13) are sequentially connected; the second positioning part (20) comprises a second left positioning section (21), a second horizontal section (22) and a second right positioning section (23) which are presented on the cross section of the second square cutter body (200), and the second left positioning section (21), the second horizontal section (22) and the second right positioning section (23) are sequentially connected; the first left positioning section (11) is matched with the second left positioning section (21) in position and shape; the first horizontal section (12) is matched with the second horizontal section (22) in position and shape; the first right positioning section (13) is matched with the second right positioning section (23) in position and shape.

9. The blade structure of claim 8, wherein: the included angles between the first left positioning section (11) and the second left positioning section (21) and the vertical direction are 30 degrees; the included angles between the first right positioning section (13) and the second right positioning section (23) and the vertical direction are 60 degrees.

10. A turret tool post for a numerically controlled lathe, characterized in that the turret tool post for a numerically controlled lathe has the blade structure according to any one of claims 1 to 9.

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