CN211071871U - A movable gasket type tool - Google Patents

Abstract

A movable spacer type cutter, comprising a spacer cutter and a knife handle; the spacer cutter comprises a fixed spacer and N different types of cutter heads, and the N cutter heads are respectively uniformly welded around the fixed spacer, The lower surface of the fixed gasket is provided with N semicircular grooves, the N semicircular grooves correspond to N cutter heads respectively, and each semicircular groove is located between the corresponding cutter head and the center of the fixed gasket. On the line segment, and the distance from each semicircular groove to the center of the fixed gasket is equal; the left side of the knife handle is provided with front, rear and left open knife grooves, and the bottom of the knife groove is provided with the semicircular groove. Matching semicircular bumps, the shim cutter is clamped on the semicircular bump at the bottom of the cutter groove through the semicircular groove; it also includes a positioning structure for defining the center point of the shim cutter and a pressing structure for fixing the shim cutter, the The positioning structure is mounted on the upper end of the knife handle and is located above the knife groove, and the extrusion structure is mounted on the upper surface of the knife handle and located above the positioning structure.

Description

A movable gasket type tool

technical field

The utility model relates to the field of cutting tools, in particular to a movable gasket type cutting tool.

Background technique

The lathe tool is composed of a shim tool and a tool holder. It is a tool used for cutting in machine manufacturing. By fixing the tool holder on the tool holder of the lathe, the shim tool faces the machining tool for cutting. At present, the shim tool The fixation with the knife handle is formed by forming a card groove matching the gasket tool on the knife handle, and the gasket tool is locked in the card groove through the locking piece, but this structure makes each knife handle only match with The matching gasket tool, in order to adapt to various processing types, a lathe often needs to wear multiple types of lathe tools, resulting in frequent replacement of the lathe tool when machining tools, and the tool holder has a long service life and gasket tools. The service life of the tool is usually caused by rust on the surface of the tool handle if it is not used for a long time, especially for some rarely used lathe tools, which will cause the tool handle to be wasted.

Utility model content

In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

A movable spacer type cutter, comprising a spacer cutter and a knife handle; the spacer cutter comprises a fixed spacer and N different types of cutter heads, the N cutter heads are respectively uniformly welded around the fixed spacer, The lower surface of the fixed gasket is provided with N semicircular grooves, the N semicircular grooves correspond to N cutter heads respectively, and each semicircular groove is located between the corresponding cutter head and the center of the fixed gasket. On the line segment, and the distance from each semicircular groove to the center of the fixed gasket is equal; the left side of the knife handle is provided with front, rear and left open knife grooves, and the bottom of the knife groove is provided with the same semicircular groove. Matching semicircular bumps, the shim cutter is clamped on the semicircular bump at the bottom of the cutter groove through the semicircular groove; it also includes a positioning structure for defining the center point of the shim cutter and an extrusion structure for fixing the shim cutter, the The positioning structure is mounted on the upper end of the knife handle and is located above the knife groove, and the extrusion structure is mounted on the upper surface of the knife handle and located above the positioning structure.

Further, the positioning structure includes an isosceles triangle plate, a fixed knife shaft, two tool changing shafts and a spring, and the upper end of the knife handle is formed with an isosceles triangle groove that matches the isosceles triangle plate, and the bottom of the isosceles triangle groove is located at three corners. There are through holes downward respectively, the through holes at the two sides of the isosceles triangular groove are located on the vertical centerline of the gasket cutter; the through holes at the sides of the isosceles triangle groove and the bottom edge of the isosceles triangle groove are located above the semicircular groove; The fixed tool shaft enters the through hole located on the vertical center line of the gasket tool in the isosceles triangular groove, and is stuck on the gasket tool, and the tool change shaft enters the through hole in the isosceles triangular groove above the tool change hole. hole, and clamp it on the gasket tool; the isosceles triangle plate is welded on the fixed tool shaft and the tool change shaft, the spring is placed vertically, the upper end is welded at the center of the lower surface of the isosceles triangle plate, and the lower end is welded at the bottom of the isosceles triangle groove. Central location.

Further, a fixed knife hole is formed at the clamping position between the fixed knife shaft on the gasket tool and the gasket knife, and the bottom of the fixed knife hole extends to the bottom of the fixed gasket; and the inner wall of the lower half of the fixed knife hole is inward. Inclined, so that the bottom area of the fixed knife hole is smaller than the opening area of the fixed knife hole; at the same time, the side wall of the fixed knife shaft at the bottom end is inclined inward, and the angle of the side wall of the fixed knife shaft is equal to the angle of the side wall of the fixed knife hole. The inclination depth of the shaft side wall is smaller than the inclination depth of the fixed knife hole side wall.

Further, a tool-changing hole is formed at the clamping position between the tool-changing shaft and the gasket cutter. There are N tool-changing holes, and the N tool-changing holes are respectively located directly above the N semicircular grooves, and the inner wall of the tool-changing hole is It is inclined inward so that the bottom area of the tool change hole is smaller than the opening area of the tool change hole; at the same time, the side wall of the tool change shaft at the bottom end is inclined inward, and the angle of the side wall of the tool change shaft is equal to the angle of the side wall of the tool change hole. , the depth of the inclination of the side wall of the tool change shaft is less than the depth of the inclination of the side wall of the tool change hole.

Further, the extrusion structure includes a fixed frame and an extrusion screw, the fixed frame is fixed on the knife handle, a threaded through hole matching the extrusion screw passes through the upper part of the fixed frame, and the extrusion screw is locked from top to bottom. In the threaded through hole, and press the positioning structure located below.

Further, the N is an integer multiple of 3, and N is less than or equal to 6 and greater than or equal to 3.

Further, there are three semicircular bumps, and the connection line between the three semicircular bumps is an equilateral triangle, one of the sides of the equilateral triangle is parallel to the side surface of the knife handle, and the corner corresponding to the side is located on the equilateral side. Left side of triangle.

Compared with the prior art, the beneficial effects of the present utility model are:

The practicability of the shim cutter can be improved by making the shim cutter into a cutter having various cutter heads.

The positioning structure uses the stability of the triangle to fix the position of the gasket tool, and then the extrusion structure uses the extrusion structure to use the extrusion screw and the fixed frame to squeeze the gasket tool, and the semicircular groove at the bottom of the gasket tool Working together with the semi-circular projections at the bottom of the tool groove, the shim tool can be stably positioned on the tool handle.

By setting the fixed knife hole and the tool change hole on the gasket cutter, when the specified type of cutter head needs to be used, loosen the extruding screw so that the tool change shaft extends out of the tool change hole. The tool shaft is also located in the fixed knife hole, and the operation of changing the tool head can be realized only by manually turning the shim tool, which solves the trouble of replacing the traditional tool handle.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is a structural schematic diagram of the present utility model.

Fig. 2 is another structural schematic diagram of the present invention.

Figure 3 is a schematic structural diagram of a gasket cutter in the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1 to 3 , a movable shim type cutter includes a shim cutter 20 and a handle 10; the shim cutter 20 includes a fixed shim 22 and N different types of cutter heads 21, the N The cutter heads 21 are respectively uniformly welded around the fixing gasket 22. The lower surface of the fixing gasket 22 is provided with N semicircular grooves 23. The N semicircular grooves 23 correspond to the N cutter heads 21 respectively. The grooves 23 are located on the line segment formed between the corresponding cutter head 21 and the center of the fixed washer 22, and the distance between each semicircular groove 23 and the center of the fixed washer 22 is equal; the left side of the handle 10 is provided with The front, the rear and the left side are open knife grooves 11 . The bottom of the knife groove 11 is provided with a semicircular bump 12 that matches the semicircular groove 23 , and the gasket cutter 20 is clamped to the bottom of the knife groove 11 through the semicircular groove 23 . It also includes a positioning structure 30 for defining the center point of the gasket tool 20 and an extrusion structure 40 for fixing the gasket 22 and the tool 20. The positioning structure 30 is installed on the upper end of the knife handle 10 and is located in the knife groove Above 11 , the extrusion structure 40 is installed on the upper surface of the knife handle 10 and is located above the positioning structure 30 .

In this embodiment, the semicircular groove 23 and the semicircular protrusion 12 work together to fix the gasket cutter 20 in the pocket 11 without shaking, and then the center point of the gasket cutter 20 is defined by the positioning structure 30 . The shim cutter 20 can be rotated at the center point to replace the cutter head 21 , and finally the shim cutter 20 is pressed into the kerf 11 by the pressing structure 40 to fix the shim 22 cutter 20 .

Further as shown in FIG. 1 , the positioning structure 30 includes an isosceles triangle plate 31, a fixed knife shaft 32, two tool changing shafts 33 and a spring 34, and the upper end of the knife handle 10 is formed with an isosceles triangle groove that matches the isosceles triangle plate 31. 13. The bottom of the isosceles triangular groove 13 is located at the three corners with through holes downward respectively, and the through holes at the two sides of the isosceles triangular groove 13 are located on the vertical centerline of the gasket cutter 20; the isosceles triangle groove 13 waist The through hole at the bottom edge of the isosceles triangular groove 13 is located above the semicircular groove 23; the fixed knife shaft 32 enters the through hole in the isosceles triangular groove 13 on the vertical centerline of the gasket cutter 20, and is stuck on the gasket. On the cutting tool 20, the tool changing shaft 33 enters the through hole located above the tool changing hole 24 in the isosceles triangular groove 13, and is stuck on the gasket tool 20; the isosceles triangle plate 31 is welded on the fixed tool shaft 32 and the tool changing On the shaft 33 , the spring 34 is placed vertically, the upper end is welded to the center of the lower surface of the isosceles triangular plate 31 , and the lower end is welded to the center of the bottom of the isosceles triangle groove 13 .

In this embodiment, the center of the shim tool 20 is pressed by the fixed tool shaft 32, and then the two sides of the fixed shim 22 on the shim tool 20 are pressed by the tool change shaft 33. 23 work together to make use of the stability of the triangle.

Further as shown in FIG. 3 , a fixed knife hole 25 is formed at the clamping position of the fixed knife shaft 32 on the gasket tool 20 and the gasket tool 20, and the bottom of the fixed knife hole 25 extends to the bottom of the fixed gasket 22; and The inner wall of the lower half of the fixed knife hole 25 is inclined inward, so that the bottom area of the fixed knife hole 25 is smaller than the opening area of the fixed knife hole 25; at the same time, the side wall of the fixed knife shaft 32 at the bottom end is inclined inward, and the side wall of the fixed knife shaft 32 is inclined inward. The angle of inclination is equal to the angle of inclination of the side wall of the fixed knife hole 25 , and the inclination depth of the side wall of the fixed knife shaft 32 is smaller than the inclination depth of the side wall of the fixed knife hole 25 .

Further as shown in FIG. 3 , a tool change hole 24 is formed at the clamping position between the tool change shaft 33 and the shim tool 20 , and there are N tool change holes 24 , and the N tool change holes 24 are respectively located in N semicircles. Right above the groove 23, the inner wall of the tool change hole 24 is inclined inward, so that the bottom area of the tool change hole 24 is smaller than the opening area of the tool change hole 24; The inclination angle of the side wall of 33 is equal to the inclination angle of the side wall of the tool change hole 24 , and the inclination depth of the side wall of the tool change shaft 33 is smaller than the inclination depth of the side wall of the tool change hole 24 .

In the present embodiment, the fixed knife hole 25 and the knife change hole 24 are provided on the fixed gasket 22, and the fixed knife hole 25 is matched with the inclined wall of the fixed knife shaft 32, and the knife change hole 24 and the inclined wall of the knife change shaft 33 are matched. The matching of the walls further ensures the stability of the fixed spacer 22 and the cutter 20 .

Further as shown in FIG. 1 and FIG. 2 , the extrusion structure 40 includes a fixed frame 41 and an extrusion screw 42 , the fixed frame 41 is fixed on the knife handle 10 , and the extrusion screw 42 is connected to the upper part of the fixed frame 41 . For the matching threaded through holes, the extrusion screw 42 is locked in the threaded through holes from top to bottom, and presses the positioning structure 30 located below.

Further as shown in FIG. 3 , the N is an integer multiple of 3, and N is less than or equal to 6 and greater than or equal to 3.

Further as shown in FIG. 1 , there are three semicircular bumps 12 , the connection line between the three semicircular bumps 12 is an equilateral triangle, and one of the sides of the equilateral triangle is parallel to the side surface of the knife handle 10 , and The angle corresponding to the side is on the left side of the equilateral triangle.

Operation mode: adjust the extrusion screw 42 on the extrusion structure 40, so that the distance from the bottom of the fixed knife shaft 32 of the positioning structure 30 to the bottom of the knife groove 11 is greater than the rear of the gasket cutter 20 plus the height of the semicircular bump 12, and the gasket is placed. The blade cutter 20 is clamped in the cutter slot 11 through the matching between the semicircular groove 23 and the semicircular bump 12, and the extruding screw 42 is adjusted again so that the fixed cutter shaft 32 enters the fixed cutter hole 25 first, and the cutter shaft 33 is still higher than the pad. The thickness of the shim cutter 20 is added to the height of the semicircular bump 12 , and the shim cutter 20 is manually rotated to adjust the appropriate cutter head 21 .

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention.

Claims (7)

1. A movable gasket type cutter comprises a gasket cutter and a cutter handle; the cutter is characterized in that the gasket cutter comprises a fixed gasket and N different types of cutter heads, the N cutter heads are respectively and uniformly welded around the fixed gasket, the lower surface of the fixed gasket is provided with N semicircular grooves, the N semicircular grooves respectively correspond to the N cutter heads, each semicircular groove is positioned on a line segment connected between the corresponding cutter head and the center of the fixed gasket, and the distance from each semicircular groove to the center of the fixed gasket is equal; the left side of the knife handle is provided with a front knife groove, a rear knife groove and a left side open type knife groove, the bottom of the knife groove is provided with a semicircular lug matched with the semicircular groove, and the gasket knife tool is clamped on the semicircular lug at the bottom of the knife groove through the semicircular groove; the tool also comprises a positioning structure used for limiting the center point of the gasket tool and a pressing structure used for fixing the gasket tool, wherein the positioning structure is arranged at the upper end of the tool handle and is positioned above the tool groove, and the pressing structure is arranged on the upper surface of the tool handle and is positioned above the positioning structure.

2. The movable shim type cutter according to claim 1, wherein the positioning structure comprises an isosceles triangle plate, a fixed cutter shaft, two cutter changing shafts and a spring, an isosceles triangle groove matched with the isosceles triangle plate is formed at the upper end of the cutter handle, through holes are respectively formed in the positions of three angles at the bottom of the isosceles triangle groove downwards, and the through holes at two waists of the isosceles triangle groove are positioned on the vertical central line of the shim cutter; the isosceles triangular groove waist and the through holes at the bottom edge of the isosceles triangular groove are positioned above the semicircular groove; the fixed cutter shaft enters a through hole in the isosceles triangular groove and positioned on the vertical central line of the gasket cutter and is clamped on the gasket cutter, and the cutter changing shaft enters a through hole in the isosceles triangular groove and positioned above the cutter changing hole and is clamped on the gasket cutter; the isosceles triangle is welded on the fixed cutter shaft and the cutter changing shaft, the spring is vertically placed, the upper end of the spring is welded at the central position of the lower surface of the isosceles triangle, and the lower end of the spring is welded at the central position of the bottom of the isosceles triangle groove.

3. The movable spacer type cutter according to claim 2, wherein a fixed cutter hole is formed at the position where the fixed cutter shaft of the spacer cutter is blocked with the spacer cutter, and the bottom of the fixed cutter hole extends to the bottom of the fixed spacer; the inner wall of the lower half part of the fixed cutter hole is inclined inwards, so that the bottom area of the fixed cutter hole is smaller than the opening area of the fixed cutter hole; and meanwhile, the side wall of the fixed cutter shaft positioned at the bottom end is inclined inwards, the inclined angle of the side wall of the fixed cutter shaft is equal to the inclined angle of the side wall of the fixed cutter hole, and the inclined depth of the side wall of the fixed cutter shaft is smaller than the inclined depth of the side wall of the fixed cutter hole.

4. The movable gasket type cutter as claimed in claim 2, wherein N cutter changing holes are formed at the position where the cutter changing shaft and the gasket cutter are clamped, the N cutter changing holes are respectively positioned right above the N semicircular grooves, and the inner wall of each cutter changing hole is inclined inwards to enable the bottom area of each cutter changing hole to be smaller than the opening area of each cutter changing hole; and meanwhile, the side wall of the cutter changing shaft at the bottom end inclines inwards, the inclined angle of the side wall of the cutter changing shaft is equal to the inclined angle of the side wall of the cutter changing hole, and the inclined depth of the side wall of the cutter changing shaft is smaller than the inclined depth of the side wall of the cutter changing hole.

5. The movable shim type tool according to claim 1, wherein the extruding structure comprises a fixed frame and an extruding screw, the fixed frame is fixed on the tool holder, a threaded through hole matched with the extruding screw is formed in the upper portion of the fixed frame, the extruding screw is locked in the threaded through hole from top to bottom, and the extruding screw presses the positioning structure located below.

6. A movable shim tool according to claim 1 or 4, wherein N is an integer multiple of 3, and N is equal to or less than 6 and equal to or greater than 3.

7. The movable shim type cutter according to claim 1, wherein the number of the semicircular convex blocks is three, connecting lines among the three semicircular convex blocks are in an equilateral triangle shape, one side of the equilateral triangle is parallel to the side surface of the cutter handle, and an angle corresponding to the side is positioned on the left side of the equilateral triangle.

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