CN210547686U - Novel spring machining cutting tool capable of remarkably reducing tool changing time - Google Patents

Abstract

The utility model discloses a show novel spring processing that reduces tool changing time and cut off cutter, its structure includes the handle of a knife, the briquetting, the blade, hexagon socket head cap screw, the groove is put to the briquetting, lower sword groove, overhead sword groove and screw hole, the utility model discloses a split type structural design, the blade is fixed with the handle of a knife through hexagon socket head cap screw on the briquetting, and the dismouting is convenient, and this blade adopts alloy steel material to increase intensity, and blade part adopts square design, can continue to use with 90 degrees transition blade after single corner wearing and tearing, has increased its 4 times life, and the handle of a knife adopts the tool steel material to have fabulous toughness simultaneously to and the radian structure dispersion stress of optimization, solved the condition that traditional spring cut off cutter easily bursts apart, make whole dumped raw and other materials cost descend by a wide margin, saved the resource.

Description

Novel spring machining cutting tool capable of remarkably reducing tool changing time

Technical Field

The utility model relates to a manufacturing tool technical field of spring, concretely relates to show novel spring processing cutting tool who reduces tool changing time.

Background

A cutting tool is involved in the existing machining process of a spiral spring and is used for cutting off a steel wire after a spring machine winds and forms the spring steel wire. The cutting tool plays an important role in the production process of the spring, and once the cutting tool is worn or cracked, the size performance of the spring is greatly influenced: the spring steel wire can not be cut off, or the spring has an inward burr after being cut off to influence the assembly and use of a client and the like. Therefore, the cutting mode of the spring and the selection of the cutter are particularly critical. For example, chinese utility model patent publication No. CN20821475U discloses "a cutter structure of spring coiling machine", which is a novel rotary cutting process, different from the conventional direct cutting method, and the rotary cutting process can effectively reduce the wear of the cutter and the possibility of burr generation in the spring by the cooperation of the motor and the mechanical structure, but when the cutter is cut, the cutter needs to bear the cutting force in the vertical direction and also receives a transverse shearing force on the handle part, so that the material of the cutter needs to have high hardness but also needs to maintain a certain toughness, the conventional spring cutter uses white steel or tungsten steel as the raw material, the white steel has good toughness but low hardness, and the cutter needs to be frequently ground in the spring production process; tungsten steel has high hardness, but is brittle, and is likely to cause chipping of a tool during production.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the novel spring machining cutting tool capable of remarkably reducing the tool changing time is provided, the problems that the strength and the toughness of the existing tool are insufficient, the tool is prone to cracking in the production process, and the tool needs to be frequently replaced are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a novel spring processing cutting tool which can obviously reduce the tool changing time, comprising a tool handle, a pressing block, a blade, an inner hexagon screw, a pressing block placing groove, a lower tool groove, an upper tool groove and a threaded hole, the front end of the knife handle is provided with a pressing block placing groove, the front side of the pressing block placing groove is provided with a lower knife groove, the pressing block is arranged on the inner side of the pressing block placing groove at the front end of the knife handle, the upper knife groove is arranged at the front end of the pressing block, the middle part of the pressing block is provided with a threaded hole, the lower cutter groove at the front end of the cutter handle and the upper cutter groove at the front end of the pressing block are mutually matched to form a cavity, the blade is arranged in a cavity formed by the lower cutter groove and the upper cutter groove, the middle part of the pressing block placing groove at the front end of the cutter handle is provided with a screw hole corresponding to the threaded hole, the inner side of the threaded hole in the pressing block is in threaded fixation with the threaded hole in the tool handle through a hexagon socket head cap screw.

Furthermore, the upper end of the knife handle is of an optimized radian structure and is connected with an external spring machine.

Further, the blade part adopts a square structure.

Furthermore, a circular open slot is formed in the inner side of the lower cutter slot.

Furthermore, the inner side angle of the upper cutter groove is in an arc structure and corresponds to the opening groove at the inner side of the lower cutter groove.

Further, the surface of the blade is plated.

Furthermore, the blade is made of alloy steel.

Furthermore, the tool handle is made of tool steel.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

for solving current cutter intensity and toughness not enough, it splits to produce the cutter easily in process of production, need frequently change the problem of cutter, the utility model discloses a split type structural design, the blade is fixed with the handle of a knife through hexagon socket head cap screw on the briquetting, it is convenient to dismouting, this blade adopts alloy steel material to increase intensity, and blade part adopts the square design, can continue to use with 90 degrees conversion blade after single corner wearing and tearing, its 4 times life has been increased, the handle of a knife adopts the tool steel material to have fabulous toughness simultaneously, and the radian structure dispersion stress of optimization, the condition that traditional spring cut-off sword easily splits has been solved, make whole abandonment raw and other materials cost descend by a wide margin, the resource has been saved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a cutter assembly of the present invention;

FIG. 2 is a schematic structural view of the knife handle of the present invention;

fig. 3 is a schematic structural view of the blade of the present invention;

fig. 4 is a schematic structural diagram of the pressing block of the present invention.

In the figure: the tool comprises a tool handle-1, a pressing block-2, a blade-3, a hexagon socket screw-4, a pressing block placing groove-11, a lower tool groove-12, an upper tool groove-21, a threaded hole-22 and a circular open groove-101.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2, 3 and 4, the present invention provides a novel spring processing cutting tool with significantly reduced tool changing time: including handle of a knife 1, briquetting 2, blade 3, hexagon socket head cap screw 4, groove 11 is place to the briquetting, lower sword groove 12, upper sword groove 21 and screw hole 22, 1 front end of handle of a knife is equipped with the briquetting and places groove 11, 11 fronts are placed to the briquetting and are seted up lower sword groove 12, briquetting 2 is installed and is placed groove 11 inboardly in the briquetting of 1 front end of handle of a knife, upper sword groove 21 has been seted up to 2 front ends of briquetting, 2 middle parts of briquetting are equipped with screw hole 22, the lower sword groove 12 of 1 front end of handle of a knife mutually supports a cavity with the upper sword groove 21 of 2 front ends of briquetting, blade 3 is installed in the cavity that this lower sword groove 12 and upper sword groove 21 formed, 11 middle parts are placed to the briquetting of 1 front end and are equipped with the screw that corresponds with screw hole 22, screw hole 22 inboards on the briquetting 2 carry out the thread tightening through.

The upper end of the knife handle 1 is of an optimized radian structure and is connected with an external spring machine, the knife handle 1 is of an optimized radian structure, so that stress concentration cannot be generated at a point where the knife handle 1 bears shearing force in a cutting process, and stress is uniformly dispersed to each position through radians.

The blade 3 is of a square structure, so that the service life of the same material can be prolonged to 4 times, and resources are greatly saved.

The inner side of the lower cutter groove 12 is provided with a circular open groove 101, so that the condition that the corners of the blade 3 and the cutter handle 1 are mutually abraded can be prevented.

Wherein, the inner side angle of the upper cutter groove 21 is arc-shaped structure corresponding to the opening groove 101 at the inner side of the lower cutter groove 12.

The surface of the blade 3 is plated, so that the strength of the blade 3 can be increased, the cutting times can be increased, the sharpening frequency and the equipment downtime can be reduced, and the comprehensive utilization rate of the equipment can be improved.

Wherein, blade 3 adopts alloy steel material, and blade 3 that this material was made is high intensity, hardness.

Wherein, handle of a knife 1 adopts the tool steel material, and handle of a knife 1 toughness that this material was made is good.

According to the table, the blade 3 is made of alloy steel, so that the hardness of the blade 3 is increased, and the service life of the blade is prolonged.

The working principle is as follows: firstly, the blade 3 is arranged in the lower cutter groove 12 on the handle 1, then the pressing block 2 is aligned to the pressing block placing groove 11 on the handle 1, the upper cutter groove 21 on the pressing block 2 and the cavity formed by the lower cutter groove 12 on the handle 1 fix the blade 3, the pressing block 2 is provided with a threaded hole 22, the inner side of the threaded hole 22 is locked into the corresponding threaded hole on the handle 1 through the thread of the inner hexagon screw 4, the pressing block 2 is matched with the handle 1 to fix the blade 3, when one corner of the blade 3 is worn, the inner hexagon screw 4 can be loosened, the pressing block 2 loosens the blade 3, then the blade 3 rotates by one corner by 90 degrees, the inner hexagon screw 4 is locked to fix the blade 3, the switching of the blade 3 is completed, the handle 1 can be connected with an external spring machine for use, the utility model adopts a split type structure design, the blade 3 is fixed with the handle 1 through the inner hexagon screw 4 on the pressing block 2, the disassembly and the assembly are convenient, the blade 3 is made of alloy steel to increase the strength, the blade 3 is partially designed in a square shape, the blade 3 can be continuously used after being converted by 90 degrees after a single corner is worn, the service life is prolonged by 4 times, meanwhile, the tool shank 1 is made of tool steel, has excellent toughness and optimized radian structure to disperse stress, solves the problem that the traditional spring cutting tool is easy to crack, greatly reduces the cost of the integrally-discarded raw materials, saves resources, the inner side of the lower cutter groove 12 is provided with a round open groove 101 which can prevent the abrasion between the edge of the blade 3 and the cutter handle 1, the inner side angle of the upper cutter groove 21 is arc-shaped and corresponds to the opening groove 101 at the inner side of the lower cutter groove 12, the surface of the blade 3 is plated, so that the strength of the blade 3 can be increased, the cutting frequency can be increased, the sharpening frequency and the equipment downtime can be reduced, and the comprehensive utilization rate of the equipment can be improved.

The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a show novel spring processing cutting off tool who reduces tool changing time which characterized in that: comprises a knife handle (1), a pressing block (2), a blade (3), a hexagon socket screw (4), a pressing block placing groove (11), a lower knife groove (12), an upper knife groove (21) and a threaded hole (22), wherein the pressing block placing groove (11) is arranged at the front end of the knife handle (1), the lower knife groove (12) is arranged at the front side of the pressing block placing groove (11), the pressing block (2) is arranged at the inner side of the pressing block placing groove (11) at the front end of the knife handle (1), the upper knife groove (21) is arranged at the front end of the pressing block (2), the threaded hole (22) is arranged in the middle of the pressing block (2), the lower knife groove (12) at the front end of the knife handle (1) and the upper knife groove (21) at the front end of the pressing block (2) are mutually matched to form a cavity, the blade (3) is arranged in the cavity formed by the lower knife groove (12) and the upper knife groove (21), and a screw hole corresponding to the threaded hole (22) is arranged in the middle, the inner side of the threaded hole (22) on the pressing block (2) is in threaded fixation with the threaded hole on the knife handle (1) through an inner hexagonal screw (4).

2. A novel spring-loaded cutting tool with significantly reduced tool change time according to claim 1, characterized in that: the upper end of the knife handle (1) adopts an optimized radian structure and is connected with an external spring machine.

3. A novel spring-loaded cutting tool with significantly reduced tool change time according to claim 1, characterized in that: the blade (3) is partially in a square structure.

4. A novel spring-loaded cutting tool with significantly reduced tool change time according to claim 1, characterized in that: the inner side of the lower cutter groove (12) is provided with a circular open groove (101).

5. A novel spring-loaded cutting tool with significantly reduced tool change time according to claim 1, characterized in that: the inner side angle of the upper cutter groove (21) is in an arc structure and corresponds to the opening groove (101) at the inner side of the lower cutter groove (12).

6. A novel spring-loaded cutting tool with significantly reduced tool change time according to claim 1, characterized in that: and the surface of the blade (3) is plated.

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