Hard alloy tool bit applied to plate processing

Abstract

The utility model discloses a hard alloy tool bit applied to plate machining. The hard alloy tool bit comprises a tool handle, a tool bit body, a tool bit clamping base, a limiting baffle ring, a first locking bolt, a second locking bolt and an elastic sliding base. The tool bit body is arranged in the tool bit clamping seat, a cutting part is arranged at the bottom of the tool bit body, a second positioning hole is formed in the part, exposed out of the first containing cavity, of the tool bit clamping seat, and a second locking bolt penetrates through the second positioning hole and abuts against the tool bit body; the limiting baffle ring is used for limiting the upward sliding stroke of the tool bit clamping base, and the elastic sliding base is used for applying upward sliding elastic force to the tool bit clamping base. The exposed length of the tool bit body can be adjusted, so that the cutting depth can be adjusted according to the thickness of a plate and the cutting working condition, and the cutting stability is improved; the elastic sliding seat can apply upward sliding elastic force to the tool bit clamping seat, then the tool bit clamping seat is allowed to elastically slide in a small range, impact force and vibration in the machining process are relieved, and the contact stability between a cutting part and a plate workpiece is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cemented carbide tool bit field especially to a cemented carbide tool bit for plate processing. BACKGROUND

[0002] Cemented carbide tool bit is a kind of cutting tool made of high-hardness, high-wear-resistance hard material, is widely applied in the cutting processing of metal, wood, plastic and other materials, cemented carbide tool bit is usually made of tungsten steel cemented carbide, has good hardness and toughness, is suitable for high-speed, high-precision cutting processing.

[0003] In prior art, when cemented carbide tool bit processes metal plate, since metal plate (such as stainless steel, titanium alloy, high-strength steel and the like) has high hardness and strength, under the condition of high-speed cutting or long-time continuous processing, the wear rate of tool bit is obviously accelerated, which not only reduces the cutting effect of tool bit, but also shortens the service life of tool bit, often needs to frequently replace tool bit, increases the downtime of equipment and overall processing cost, reduces production efficiency;In addition, under the processing condition of high load, since tool bit will bear large impact force in the processing process, will cause tool bit to break, crack and other damage problems, thereby affecting the service life of cutting tool.

[0004] Therefore, prior art has defects and needs to be improved. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problems that: provide a cemented carbide tool bit for plate processing, easy to replace tool bit, effectively reduce tool bit wear, long service life.

[0006] To achieve this purpose, the utility model adopts the following technical scheme: a cemented carbide tool bit for plate processing, including tool handle, tool bit body, tool bit holder, limit stop ring, first locking bolt, second locking bolt and elastic slide base;

[0007] The end of tool handle is equipped with inclined plane structure, the first receiving chamber that passes through tool handle is formed in the inclined plane structure, the tool bit holder is arranged in the first receiving chamber, and the tool bit holder can slide along the extension direction of the first receiving chamber;

[0008] The tool bit body is arranged in the tool bit holder, the first positioning hole is arranged in the middle of the tool bit holder, the first locking bolt passes through tool handle and the first positioning hole in turn and abuts against the tool bit body;

[0009] The tool bit body bottom has cutting part, the cutting part is used for cutting plate, the part of tool bit holder exposed in the first receiving chamber is equipped with the second positioning hole, and the second locking bolt passes through the second positioning hole and abuts against the tool bit body.

[0010] The bottom of the tool head holder is provided with a shaft neck part, the limiting stop ring is sleeved on the tool head holder and abuts against the shaft neck part, and the limiting stop ring is used for limiting the stroke of the upward sliding of the tool head holder;

[0011] The side end of the first accommodating chamber is provided with a second accommodating chamber, the first accommodating chamber and the second accommodating chamber are partially communicated at the top, the elastic sliding seat is located in the second accommodating chamber, the side wall of the top of the tool head holder is provided with a clamping groove, the top of the elastic sliding seat abuts against the clamping groove, and the elastic sliding seat is used for applying the elastic force for the upward sliding of the tool head holder.

[0012] By adopting the technical scheme, the hard alloy tool head applied to plate processing further comprises a positioning key block, the positioning key block is arranged on the tool head holder, a positioning sliding groove is arranged in the first accommodating chamber, and the positioning key block can slide along the extension direction of the positioning sliding groove.

[0013] By adopting the technical scheme, in the hard alloy tool head applied to plate processing, the elastic sliding seat comprises a spring and a sleeve sliding seat.

[0014] The spring is located in the second accommodating chamber, the sleeve sliding seat is internally provided with a containing hole for positioning and mounting the spring, and the top of the sleeve sliding seat abuts against the clamping groove.

[0015] By adopting the technical scheme, in the hard alloy tool head applied to plate processing, the side wall of the clamping groove is provided with an embedded hole, and the embedded hole is used for embedding and connecting part of the sleeve sliding seat.

[0016] By adopting the technical scheme, in the hard alloy tool head applied to plate processing, the top end face of the tool head holder is flush with the horizontal plane of the tool handle.

[0017] By adopting the technical scheme, in the hard alloy tool head applied to plate processing, the tool head body is made of tungsten steel hard alloy.

[0018] By adopting the technical scheme, in the hard alloy tool head applied to plate processing, the surface of the cutting part is coated with a titanium carbonitride coating.

[0019] Compared with the prior art, the hard alloy tool head applied to plate processing has the following beneficial effects:

[0020] The exposed length of the tool bit body can be adjusted through the first locking bolt and the second locking bolt, so that the cutting depth is adjusted according to the thickness of the plate and the cutting working condition, and the cutting stability is improved; in the cutting process, the tool bit body will encounter uneven resistance or strong reaction force of the plate workpiece, the elastic sliding seat can exert the elastic force of upward sliding on the tool bit clamp seat, and then the tool bit clamp seat is allowed to realize small-amplitude elastic sliding, the impact force and vibration in processing are relieved, and the contact stability between the cutting part and the plate workpiece is improved; the limiting baffle ring is sleeved on the tool bit clamp seat and abuts against the shaft neck part, so that the upward sliding stroke of the tool bit clamp seat is limited, and the cutting effect of the tool bit body is avoided from being affected by the too large sliding stroke. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained on the basis of these drawings without creative labor.

[0022] The structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, and therefore do not have technical substantial significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0023] Figure 1 It is a whole structure schematic view of the present application;

[0024] Figure 2 It is an explosion structure schematic view of the present application;

[0025] Figure 3 It is a tool handle structure schematic view of the present application;

[0026] Figure 4 It is an assembly structure schematic view between the tool bit body and the tool bit clamp seat of the present application;

[0027] Figure 5 It is an installation structure schematic view between the tool bit clamp seat and the limiting baffle ring of the present application. DETAILED DESCRIPTION

[0028] In order to make the utility model more obvious and easy to understand, the following will be combined with the drawings in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the following described embodiment is only a part of the embodiment of the utility model, but not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0029] In the description of the utility model, it is understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.

[0030] The technical scheme of the utility model will be further illustrated by the specific embodiments in combination with the drawings.

[0031] As Figures 1 to 5 shown, the utility model embodiment provides a kind of hard alloy tool bit applied to plate processing, including handle 1, tool bit body 2, tool bit holder 3, limit baffle ring 4, first locking bolt 51, second locking bolt 52 and elastic slide 6;

[0032] The handle 1 end is equipped with inclined plane structure 10, the first receiving chamber 101 that is through the handle 1 is in the inclined plane structure 10, the tool bit holder 3 is in the first receiving chamber 101, the tool bit holder 3 can slide along the extension direction of the first receiving chamber 101;Tool bit body 2 is in the tool bit holder 3, the first positioning hole 31 is in the middle of the tool bit holder 3, the first locking bolt 51 is sequentially through handle 1 and the first positioning hole 31 and is in abutment with the tool bit body 2;The setting of inclined plane structure 10 can adjust the installation angle of installation tool bit body 2, to further reduce the friction and resistance between tool bit body 2 and plate workpiece, which not only reduces the burden of tool bit body 2, but also can reduce the wear and heating of tool bit body 2, prolong the service life of tool;

[0033] The bottom of the tool head body 2 has a cutting part 21 for cutting plates, and the part of the tool head holder 3 exposed to the first receiving chamber 101 is provided with a second positioning hole 32, and the second locking bolt 52 passes through the second positioning hole 32 and abuts against the tool head body 2. The second positioning hole 32 and the second locking bolt 52 can facilitate the user to adjust the length of the cutting part 21 at the bottom of the tool head body 2 exposed to the tool head holder 3, so as to adjust the cutting depth according to the thickness of the processed plate, thereby improving the applicability and flexibility of processing. For example, when cutting a plate workpiece with high hardness, the exposed length of the tool head body 2 can be reduced, thereby improving the rigidity of the tool head body 2, reducing the risk of fracture of the tool head body 2, and improving the cutting stability and tool life.

[0034] The bottom of the tool head holder 3 is provided with a journal part 33, the limiting stop ring 4 is sleeved on the tool head holder 3 and abuts against the journal part 33, the limiting stop ring 4 is used to limit the upward sliding stroke of the tool head holder 3, the first receiving chamber 101 is provided with a second receiving chamber 102 at the side end, the first receiving chamber 101 and the second receiving chamber 102 are communicated at the top, the elastic slide 6 is located in the second receiving chamber 102, the top of the elastic slide 6 abuts against the clamping groove 34 in the side wall of the tool head holder 3, and the elastic slide 6 is used to exert an upward sliding elastic force on the tool head holder 3. During cutting, the tool head body 2 may encounter uneven resistance or strong reaction force of the plate workpiece, and the elastic slide 6 can exert an upward sliding elastic force on the tool head holder 3, thereby allowing the tool head holder 3 to elastically slide slightly in a specific case, so as to relieve the impact force and vibration during processing, and improve the contact stability between the cutting part 21 and the plate workpiece. The limiting stop ring 4 is sleeved on the tool head holder 3 and abuts against the journal part 33, thereby limiting the upward sliding stroke of the tool head holder 3, and avoiding that the excessive sliding stroke affects the cutting effect of the tool head body 2.

[0035] As shown in Figure 2 Further, a positioning key block 35 is further included, the positioning key block 35 is arranged on the tool head holder 3, and a positioning sliding groove 100 is arranged in the first receiving chamber 101, and the positioning key block 35 can slide along the extension direction of the positioning sliding groove 100. In this way, the tool head holder 3 can be prevented from deviating or rotating during processing, and the cutting position and angle of the tool head body can be prevented from being deflected to cause processing errors.

[0036] As shown in Figure 2As shown, the elastic slide 6 further includes a spring 61 and a sleeve slide 62. The spring 61 is located within the second receiving chamber 102, and the sleeve slide 62 has a receiving hole for positioning and installing the spring 61. The top of the sleeve slide 62 abuts against the slot 34. The sleeve slide 62 ensures that the spring 61 is stably confined within the receiving hole inside the sleeve slide 62, preventing the spring 61 from shifting or deforming when compressed and released.

[0037] like Figure 2 and Figure 5 As shown, the side wall of the slot 34 is provided with an embedding hole 340, which is used for a portion of the sleeve slide 62 to be embedded and connected, thereby improving the connection stability between the elastic slide 6 and the cutter head holder 3.

[0038] like Figure 1 As shown, the top end face of the cutter head holder 3 is flush with the horizontal plane of the cutter handle 1.

[0039] Furthermore, the cutter body 2 is made of tungsten carbide. Tungsten carbide has high hardness and heat resistance, and can withstand large cutting forces during machining without easily wearing or dulling, effectively improving the cutting performance of the tool.

[0040] Furthermore, the surface of the cutting part 21 is coated with a titanium carbonitride coating. The titanium carbonitride coating has extremely high hardness and a smooth surface, which allows the cutting part 21 to effectively resist wear caused by friction during contact with the sheet metal workpiece, thereby reducing the wear rate of the cutting part 21.

[0041] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cemented carbide tool tip for use in processing of sheet material, characterized in that, The tool shank, the tool head body, the tool head holder, the limiting ring, the first locking bolt, the second locking bolt and the elastic slide base are included. The tool shank end is provided with a bevel structure, the bevel structure has a first receiving chamber penetrating the tool shank, the tool head holder is arranged in the first receiving chamber, and the tool head holder can slide along the extension direction of the first receiving chamber. The tool head body is arranged in the tool head holder, the middle part of the tool head holder is provided with a first positioning hole, the first locking bolt penetrates the tool shank and the first positioning hole in sequence and abuts against the tool head body. The tool head body bottom has a cutting part for cutting plates, the part of the tool head holder exposed to the first receiving chamber is provided with a second positioning hole, and the second locking bolt penetrates the second positioning hole and abuts against the tool head body. The tool head holder bottom is provided with a journal part, the limiting ring is sleeved on the tool head holder and abuts against the journal part, and the limiting ring is used for limiting the stroke of the tool head holder sliding upward. The first receiving chamber side end is provided with a second receiving chamber, the first receiving chamber and the second receiving chamber are in communication at the top part, the elastic slide base is arranged in the second receiving chamber, the tool head holder top side wall is provided with a clamping groove, the elastic slide base top abuts against the clamping groove, and the elastic slide base is used for applying an elastic force to the tool head holder to slide upward.

2. The cemented carbide tool tip for plate working according to claim 1, wherein The positioning key block is arranged on the tool head holder, the first receiving chamber is provided with a positioning sliding groove, and the positioning key block can slide along the extension direction of the positioning sliding groove.

3. The cemented carbide tool tip for plate processing according to claim 1, wherein The elastic slide base includes a spring and a sleeve slide base. The spring is arranged in the second receiving chamber, the sleeve slide base interior has a containing hole for positioning and installing the spring, and the sleeve slide base top abuts against the clamping groove.

4. The cemented carbide tool tip for plate working according to claim 3, wherein The clamping groove side wall is provided with an embedded hole for embedding and connecting part of the sleeve slide base.

5. The cemented carbide tool tip for plate working according to claim 4, wherein The tool head holder top end surface is flush with the horizontal plane of the tool shank.

6. The cemented carbide tool tip for plate working according to claim 1, wherein The tool head body is made of tungsten steel hard alloy.

7. The cemented carbide tool tip for plate working according to claim 6, wherein The cutting part surface is coated with a titanium carbonitride coating.

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