CN220901917U - Turning tool for numerical control lathe - Google Patents

Abstract

The utility model discloses a turning tool for a numerical control lathe, which comprises a tool body and a pressing assembly, wherein the tool body comprises a tool handle and a blade, the two ends of the tool handle are respectively a front end and a rear end, the top surface of the front end of the tool handle is provided with a through accommodating groove, the front side wall in the accommodating groove extends to the outer side of the front end surface of the tool handle in a penetrating way, the bottom of the accommodating groove is fixedly provided with a bottom block, the bottom block and the tool handle are integrally formed, the blade is arranged in the accommodating groove, the blade is detachably arranged on the top surface of the bottom block, and the front end of the blade extends to the outer side of the accommodating groove; the compressing assembly is arranged on the top surface of the front end of the cutter body and comprises a pressing plate and a locking bolt, and two ends of the bottom surface of the pressing plate are respectively propped against the top surface of the cutter blade and the top surface of the cutter handle through the locking bolt. The turning tool enables the cutting edge of the blade to be propped against the surface of the part during cutting by lengthening the length of the cutting edge of the blade, so that the surface of the part is cut simultaneously, the track of the cutting point always moves linearly, and high-precision machining of the part is realized.

Description

Turning tool for numerical control lathe

Technical Field

The utility model relates to the technical field of lathe tools, in particular to a turning tool for a numerical control lathe.

Background

The turning tool is mainly used for realizing part processing by a numerical control lathe, and the main structure of the turning tool comprises a tool handle and a blade. When the tool is used, the main shaft rotates at a high speed, and the tool nose of the tool and the part participate in relative extrusion, so that the metal material on the surface of the part is peeled off, and the size of the part is ensured.

When turning parts in an ideal state, the blade is not worn, and the cutting track is a straight line. In the actual cutting operation of the turning tool, when the cutting distance is a certain distance, the tool mainly relies on the tool tip of the blade to cut the surface of the part in the cutting process, and the tool tip of the blade is continuously worn along with the continuous use of the blade to cause shortening; the tip has a small amount of wear from a single point of application, but the tip wear increases significantly as the cutting distance increases from the full cutting distance. When the surface of the same part is turned, the cutting depth of the surface of the part is gradually reduced due to continuous abrasion of the cutter tip, so that the cutting points of the cutter tip on the surface of the part are connected together and are not on an ideal linear track, the deviation becomes an oblique line, the cylindricity and roundness of the part are increased, and finally high-precision part machining cannot be realized.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides a turning tool for a numerical control lathe, which solves the problems that when the tool tip of a blade is used for turning the surface of a part, the cutting depth of the surface of the part is gradually reduced due to continuous abrasion of the tool tip along with the increase of the cutting distance, so that the cutting point of the tool tip on the surface of the part is connected on a linear track which is not ideal, and finally, the high-precision part processing cannot be realized.

In order to solve the technical problems, the utility model adopts the following technical scheme:

A turning tool for use with a numerically controlled lathe, comprising:

The cutter body comprises a cutter handle and a cutter blade, wherein the front end and the rear end are respectively arranged at the two ends of the cutter handle, a through accommodating groove is formed in the top surface of the front end of the cutter handle, the front side wall in the accommodating groove penetrates through and extends to the outer side of the front end surface of the cutter handle, a bottom block is fixedly arranged at the bottom of the accommodating groove, the bottom block and the cutter handle are integrally formed, the cutter blade is arranged in the accommodating groove, the cutter blade is detachably arranged on the top surface of the bottom block, and the front end of the cutter blade extends to the outer side of the accommodating groove; and

The pressing assembly is arranged on the top surface of the front end of the cutter body and comprises a pressing plate and a locking bolt, two ends of the bottom surface of the pressing assembly respectively support against the top surface of the cutter blade and the top surface of the cutter handle, and the pressing plate is fixed on the top surface of the cutter body through the locking bolt.

The turning tool used for the numerical control lathe lengthens the length of the cutting edge of the blade, so that the cutting edge of the blade is propped against the surface of the part during cutting, the surface of the part is cut simultaneously, the track of the cutting point always moves linearly, and high-precision machining of the part is realized.

Further, the top surface of clamp plate has seted up the first screw hole that link up, and the second screw hole that link up has been seted up to the top surface of handle of a knife, supports respectively behind blade top surface and handle of a knife top surface with the bottom surface both ends of clamp plate, after the tip screw thread of lock bolt passed first screw hole and inserts second screw hole threaded connection.

Further, the bottom surface both ends integrated into one piece of clamp plate is equipped with the stopper, and the limit groove has been seted up along width direction to the top surface of handle of a knife, and the stopper bottom that is located clamp plate bottom surface rear end can inlay to establish and insert the limit groove, and the stopper bottom that is located clamp plate bottom surface front end supports to press at the blade top surface, and the top surface height of blade is less than the top surface height of handle of a knife.

Further, the blade is disposed in the receiving groove by a locking screw.

Further, a through hole is formed in the middle of the top surface of the blade, the cross section of the through hole in the axis direction is of a T-shaped structure, a third threaded hole is formed in the inner bottom wall of the accommodating groove, the end part of the locking screw penetrates through the through hole and is inserted into the third threaded hole to be in threaded connection, and the head part of the locking screw is completely immersed into the through hole.

Further, two spaced adjusting screws are arranged on the inner wall of the rear side of the accommodating groove, two end faces of the blade are in clearance fit with the accommodating groove, adjusting threaded holes are formed in two sides of the inner wall of the rear side of the accommodating groove, the end parts of the two adjusting screws are respectively inserted into the two adjusting threaded holes in a threaded mode, and the heads of the two adjusting screws are propped against the rear side face of the blade together.

Further, four adjusting holes are uniformly formed in the circumferential side face of the head of each adjusting screw.

Further, the front side of the bottom block protrudes and extends to the outer side of the accommodating groove.

The utility model has the beneficial effects that: the turning cutter body used for the numerical control lathe lengthens the length of the cutting edge of the blade, so that the cutting edge of the blade is propped against the surface of a part during cutting, the surface of the part is cut simultaneously, the track of a cutting point always moves linearly, and high-precision machining of the part is realized; the blade is fixedly arranged in the accommodating groove through the locking screw, and the blade is easy to replace due to the detachability of the blade, and is easy to detach, repair and reuse; the exposed lengths of the two adjusting screws are different by screwing in or screwing out the adjusting screws, so that the taper of the fine adjustment blade solves the taper problem of the part; through the tightening of the locking screw, the blade is firmly fixed on the bottom block, and the pressing plate and the locking bolt are used for pressing the blade, so that the blade is tightly fixed, and the blade is prevented from shaking when turned on the surface of a part.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a front view of the present utility model;

FIG. 4 is a cross-sectional view of the present utility model;

FIG. 5 is a top view of the present utility model (with the platen removed);

FIG. 6 is a schematic view of the structure of the adjusting screw;

Reference numerals:

10-cutter body, 11-handle of a knife, 12-blade, 13-holding tank, 14-bottom block, 15-second screw hole, 16-third screw hole, 17-through-hole, 18-adjustment screw hole, 20-compress tightly the subassembly, 21-clamp plate, 22-locking bolt, 23-first screw hole, 24-stopper, 25-spacing groove, 30-adjusting screw, 31-adjustment hole, 40-locking screw.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations and positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the indicated positions or elements must have a specific orientation, be constructed and operated in a specific manner, and thus are not to be construed as limiting the present utility model.

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

Referring to fig. 1 to 5, the turning tool for a numerically controlled lathe provided by the utility model comprises a tool body 10, a pressing assembly 20 and two adjusting screws 30, wherein the tool body 10 comprises a tool shank 11 and a blade 12, the two ends of the tool shank 11 are respectively provided with a front end and a rear end, the top surface of the front end of the tool shank 11 is provided with a through accommodating groove 13, the front side wall in the accommodating groove 13 extends to the outer side of the front end surface of the tool shank 11 in a penetrating manner, the bottom of the accommodating groove 13 is fixedly provided with a bottom block 14, the bottom block 14 and the tool shank 11 are integrally formed, the blade 12 is arranged in the accommodating groove 13, and the blade 12 is detachably arranged on the top surface of the bottom block 14; the pressing assembly 20 is provided at a front top surface of the cutter body 10 for fixing the position of the blade 12. Wherein the front side of the bottom block 14 protrudes and extends to the outer side of the accommodating groove 13, and the front end of the blade 12 extends to the outer side of the accommodating groove 13, so that the blade 12 can cut the surface of the part conveniently.

In use, the blade 12 is installed in the accommodating groove 13, and then the blade 12 is pressed and fixed by the pressing assembly 20, so that the blade 12 cannot move in the accommodating groove 13; after the cutter body 10 is arranged on the numerical control lathe, the cutting edges of the cutter blade 12 are abutted against the surface of the part, so that the surface of the part is cut simultaneously, and no sequence exists; because the length of the cutting edge of the blade 12 is greater than the length of the surface to be cut of the part, the cutting track always moves linearly, and when the cutting edge of the blade 12 contacts the length of the surface to be cut of the part, the abrasion loss of the whole cutting edge of the blade 12 is the same along with the cutting of the surface of the part, so that the cutting loss of the surface of the part is the same, and the high-precision machining of the part is realized.

In actual operation, the diameter size fluctuation is within 0.003mm, the roundness fluctuation range is within 0.002mm, and the cylindricity fluctuation range is within 0.001mm in the continuous processing process. And the blade 12 can be repeatedly sharpened for more than 5 times.

The pressing assembly 20 comprises a pressing plate 21 and a locking bolt 22, two ends of the bottom surface of the pressing assembly 20 respectively press against the top surface of the blade 12 and the top surface of the knife handle 11, and the pressing plate 21 is fixed on the top surface of the knife body 10 through the locking bolt 22. Specifically, the top surface of the pressing plate 21 is provided with a first threaded hole 23 which is communicated with the top surface of the tool holder 11 and a second threaded hole 15 which is communicated with the top surface of the tool holder 11, and when two ends of the bottom surface of the pressing plate 21 are respectively pressed against the top surface of the blade 12 and the top surface of the tool holder 11, the end threads of the locking bolt 22 penetrate through the first threaded hole 23 and are inserted into the second threaded hole 15 for internal threaded connection.

When the blade 12 is placed in the accommodating groove 13 and is mounted on the bottom block 14, two ends of the bottom end of the pressing plate 21 are respectively abutted against the top surface of the cutter handle 11 and the top surface of the blade 12, then the end threads of the locking bolt 22 penetrate through the first threaded hole 23 and are inserted into the second threaded hole 15, and then the locking bolt 22 is screwed down, so that the pressing plate 21 is pressed downwards by the head of the locking bolt 22, the pressing plate 21 is tightly pressed on the cutter body 10, the blade 12 is fixed in the accommodating groove 13, the shaking of the blade 12 during turning by the blade 12 is avoided, and the turning precision of parts is improved.

Preferably, the two ends of the bottom surface of the pressing plate 21 are integrally formed with limiting blocks 24, the top surface of the knife handle 11 is provided with limiting grooves 25 along the width direction, the bottoms of the limiting blocks 24 positioned at the rear end of the bottom surface of the pressing plate 21 can be embedded and inserted into the limiting grooves 25, the bottoms of the limiting blocks 24 positioned at the front end of the bottom surface of the pressing plate 21 are propped against the top surface of the knife blade 12, and the top surface of the knife blade 12 is lower than the top surface of the knife handle 11. Along the width direction of the cutter handle 11, the width of the limiting block 24 is the same as that of the pressing plate 21, and the width of the limiting block 24 is smaller than that of the accommodating groove 13, so that the bottom of the limiting block 24 positioned at the front end of the bottom surface of the pressing plate 21 is inserted into the accommodating groove 13 and is abutted against the top surface of the blade 12, and the limiting of the blade 12 is fixed in the direction. The bottom surfaces of the two limiting blocks 24 are positioned at the same height position through the arrangement of the limiting grooves 25, so that the stability of the pressing plate 21 against the blade 12 is ensured.

In this embodiment, the blade 12 is detachably disposed in the accommodating groove 13 by the locking screw 40, and the blade 12 is easily replaced due to the removability of the blade 12, and is easily ground for reuse. Specifically, a through hole 17 is formed in the middle of the top surface of the blade 12, the cross section of the through hole 17 in the axial direction is of a T-shaped structure, a third threaded hole 16 is formed in the inner bottom wall of the accommodating groove 13, the end portion of the locking screw 40 penetrates through the through hole 17 and is inserted into the third threaded hole to be in threaded connection, and the head portion of the locking screw 40 is completely immersed into the through hole 17.

By tightening the locking screw 40, the blade 12 is fixed on the bottom block 14, so that the blade 12 and the bottom block 14 are prevented from sliding, the stability of the fixation of the blade 12 is enhanced, and when the cutter is installed on a numerical control lathe for use, the blade 12 can be prevented from being swayed due to the relative extrusion of parts during turning; and the head of the locking screw 40 is completely sunk into the through hole 17, so that the bottom of the limiting block 24 positioned at the front end of the bottom surface of the pressing plate 21 is directly pressed against the top surface of the blade 12, and the bottom surface of the pressing plate 21 is prevented from touching the head of the locking screw 40, so that the blade 12 is not pressed.

Referring to fig. 5 and 6, in the present embodiment, two spaced adjusting screws 30 are disposed on the inner wall of the rear side of the accommodating groove 13, two end surfaces of the blade 12 are disposed in clearance fit with the accommodating groove 13, two adjusting screw holes 18 are disposed on two sides of the inner wall of the rear side of the accommodating groove 13, the end portions of the two adjusting screws 30 are respectively threaded into the two adjusting screw holes 18, and the heads of the two adjusting screws 30 are abutted against the rear side surface of the blade 12. The two adjusting screws 30 are used for fine-tuning the taper of the insert 12, and are mainly used for turning the surface of the part into a taper surface or turning the taper surface of the part.

The two adjusting screws 30 are screwed into the adjusting screw holes 18 by adjusting the depth so that the lengths of the two adjusting screws 30 located in the accommodating grooves 13 are inconsistent, and the heads of the two adjusting screws 30 simultaneously abut against the rear side surface of the blade 12 so that the blade 12 has a slight inclination (the inclination is very small, the precision is in the order of 0.01 mm) in the accommodating grooves 13 at this time, and the surface of the part is turned into a taper surface.

Preferably, four adjustment holes 31 are uniformly formed in the circumferential side of the head of each adjustment screw 30. The setting of the adjusting hole 31 is used for rotating the adjusting screw 30 by using a wrench, and in use, the wrench is inserted into the adjusting hole 31 to finely adjust and rotate the head of the adjusting screw 30, and the end of the adjusting screw 30 is screwed into or out of the adjusting screw hole 18, thereby adjusting the exposed length of the adjusting screw 30 in the accommodating groove 13.

In this embodiment, the front side and the rear side of the blade 12 are both cutting surfaces, and the top edge of the front side and the top edge of the rear side of the blade 12 are both cutting edges, so that the blade 12 has two effective cutting edges, and the two cutting edges enable the blade 12 to cut, thereby improving the practicability of the blade 12.

The working principle of the utility model is as follows: in use, two adjusting screws 30 are respectively inserted into the two adjusting threaded holes 18 and screwed into a certain depth; then placing the blade 12 in the accommodating groove 13 so that the through hole 17 is aligned with the third threaded hole 16, threading the locking screw 40 through the through hole 17 and inserting the locking screw 40 into the third threaded hole 16, then inserting the two adjusting screws 30 into the adjusting holes 31 by using a wrench to adjust the exposed lengths of the two adjusting screws 30 so that the heads of the two adjusting screws 30 simultaneously abut against the rear side surface of the blade 12, wherein the rear side surface of the blade 12 is parallel to the rear side wall in the accommodating groove 13, continuing to thread the locking screw 40 so that the head of the locking screw 40 is completely inserted, and fixing the blade 12 on the bottom block 14; the platen 21 is then placed on the top surface of the cutter body 10. The two limiting blocks 24 are respectively pressed in the limiting grooves 25 and on the top surfaces of the blocking pieces, and the end threads of the locking bolts 22 penetrate through the first threaded holes 23 and are inserted into the second threaded holes 15 to be screwed; finally, the cutter handle 11 is mounted on a numerical control lathe.

When there is a problem with the taper of the parts, the taper of the insert 12 is fine-tuned by turning the head of the set screw 30 using a wrench, screwing in or out the set screw 30 so that the exposed lengths of the two set screws 30 are not the same.

The utility model has the beneficial effects that: the turning tool used by the numerical control lathe lengthens the length of the cutting edge of the blade 12, so that the cutting edge of the blade 12 is propped against the surface of the part during cutting, the surface of the part is cut simultaneously, the track of a cutting point always moves in a straight line, and high-precision machining of the part is realized; the blade 12 is fixedly arranged in the accommodating groove 13 through the locking screw 40, and the blade 12 is easy to replace due to the detachability of the blade 12, and is easy to detach, repair and reuse; the exposed lengths of the two adjusting screws 30 are different by screwing in or screwing out the adjusting screws 30, so that the taper of the fine adjustment blade 12 solves the taper problem of the part; by tightening the locking screw 40, the blade 12 is firmly fixed on the bottom block 14, and the pressing plate 21 and the locking bolt 22 press the blade 12 tightly, so that the blade 12 is firmly fixed, and when the cutter is installed on a numerical control lathe for use, the cutter can be prevented from shaking when the surface of a part is turned by the blade 12.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (8)

1. A turning tool for use with a numerically controlled lathe, comprising:

The cutter body comprises a cutter handle and a cutter blade, wherein the front end and the rear end of the cutter handle are respectively arranged at the two ends of the cutter handle, a through accommodating groove is formed in the top surface of the front end of the cutter handle, the front side wall in the accommodating groove penetrates through and extends to the outer side of the front end surface of the cutter handle, a bottom block is fixedly arranged at the bottom of the accommodating groove, the bottom block and the cutter handle are integrally formed, the cutter blade is arranged in the accommodating groove, the cutter blade is detachably arranged on the top surface of the bottom block, and the front end of the cutter blade extends to the outer side of the accommodating groove; and

The pressing assembly is arranged on the top surface of the front end of the cutter body and comprises a pressing plate and a locking bolt, two ends of the bottom surface of the pressing assembly are respectively pressed against the top surface of the cutter blade and the top surface of the cutter handle, and the pressing plate is fixed on the top surface of the cutter body through the locking bolt.

2. A turning tool for use with a numerically controlled lathe as in claim 1, wherein: the top surface of clamp plate has seted up the first screw hole that link up, the second screw hole that link up has been seted up to the top surface of handle of a knife, supports respectively behind blade top surface and handle of a knife top surface with the bottom surface both ends of clamp plate, locking bolt's tip screw thread passes behind the first screw hole and inserts second screw hole internal thread connection.

3. A turning tool for use with a numerically controlled lathe as in claim 2, wherein: the bottom surface both ends integrated into one piece of clamp plate is equipped with the stopper, the limit groove has been seted up along width direction to the top surface of handle of a knife, and the stopper bottom that is located clamp plate bottom surface rear end can inlay to establish and insert the limit groove, and the stopper bottom that is located clamp plate bottom surface front end supports the pressure at the blade top surface, the top surface height of blade is less than the top surface height of handle of a knife.

4. A turning tool for use with a numerically controlled lathe as in claim 1, wherein: the blade is arranged in the accommodating groove through a locking screw.

5. A turning tool for use with a numerically controlled lathe as in claim 4, wherein: the middle part of the top surface of the blade is provided with a through hole, the cross section of the through hole in the axis direction is of a T-shaped structure, the inner bottom wall of the accommodating groove is provided with a third threaded hole, the end part of the locking screw penetrates through the through hole and is inserted into the third threaded hole to be in threaded connection, and the head part of the locking screw is completely immersed into the through hole.

6. A turning tool for use with a numerically controlled lathe as in claim 1, wherein: two spaced adjusting screws are arranged on the inner wall of the rear side of the accommodating groove, two end faces of the blade are in clearance fit with the accommodating groove, adjusting threaded holes are formed in two sides of the inner wall of the rear side of the accommodating groove, the end parts of the two adjusting screws are respectively inserted into the two adjusting threaded holes in a threaded mode, and the heads of the two adjusting screws are propped against the rear side face of the blade jointly.

7. The turning tool for use with a numerically controlled lathe as in claim 6, wherein: four adjusting holes are uniformly formed in the circumferential side face of the head of each adjusting screw.

8. A turning tool for use with a numerically controlled lathe as in claim 1, wherein: the front side of the bottom block protrudes and extends to the outer side of the containing groove.