Novel adjustable roughness cutter

Abstract

The novel adjustable roughness cutter comprises a cutter handle and a cutting part, the cutting part comprises a mounting shaft, a pair of fixed teeth, a pair of damage teeth, an adjusting bolt and a stop bolt, one end of the mounting shaft is connected with the cutter handle, the other end of the mounting shaft is provided with two adjusting grooves in the axial direction to form two adjusting blocks, and the two adjusting blocks are connected with the fixed teeth. The two adjusting blocks are arranged on the two sides of the mounting shaft in a central symmetry mode, the pair of fixing teeth and the pair of breaking teeth are arranged in the circumferential direction of the surface of the mounting shaft, the fixing teeth are connected with the outer edge of the mounting shaft, and the breaking teeth are connected with the outer edges of the adjusting blocks. The adjusting bolt penetrates through the adjusting block and the mounting groove to be connected with the mounting shaft, and the stop bolt penetrates through the adjusting block to abut against the mounting shaft. By adjusting the height of the cutter teeth, the surface roughness after hole wall machining can be effectively controlled, and the hole diameter size can be finely adjusted; and secondly, main shaft jumping can be compensated by adjusting the height of the cutter teeth, and the problem that the aperture and roundness of a product are poor due to slight jumping of the main shaft is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field especially is a new adjustable roughness cutter. BACKGROUND

[0002] The current market hole processing surface roughness can reach Ra0.2-0.6 processing mode has: boring, reaming, internal grinding and turning, but the processing mode suitable for machining center only boring and reaming.

[0003] Boring, although can satisfy general aperture and surface roughness requirement, but when product mass production, with the spindle runout, can not satisfy aperture and hole surface roughness requirement, spindle dynamic runout, reamer processes, aperture will appear taper, hole wall because tool ligament extrusion hole wall, make hole wall roughness uneven, and because the product hole tolerance is strict, hole wall has broken hole, reamer can not satisfy the requirement of aperture and hole wall roughness.

[0004] Reaming, although can satisfy general aperture and surface roughness requirement, but when product mass production, with the spindle runout, can not satisfy aperture and hole surface roughness requirement, spindle dynamic runout, reamer processes, aperture will appear taper, hole wall because tool ligament extrusion hole wall, make hole wall roughness uneven, and because the product hole tolerance is strict, hole wall has broken hole, reamer can not satisfy the requirement of aperture and hole wall roughness. SUMMARY

[0005] Therefore, the utility model wants to overcome the defect that hole wall roughness is difficult to control in the boring and reaming process of prior art due to the slight runout of spindle.

[0006] To solve the above technical problem, the utility model provides a new adjustable roughness cutter, which comprises:

[0007] A tool handle;

[0008] A cutting part, the cutting part comprises a mounting shaft, a pair of fixed teeth, a pair of damage teeth, an adjusting bolt and a stop bolt, one end of the mounting shaft is connected with the tool handle, the other end of the mounting shaft is provided with two adjusting grooves along the axial direction to form two adjusting blocks, the two adjusting blocks are symmetrically arranged at the two sides of the mounting shaft, a pair of fixed teeth and a pair of damage teeth are arranged on the surface of the mounting shaft in the circumferential direction, the fixed teeth are connected with the outer edge of the mounting shaft, and the damage teeth are connected with the outer edge of the adjusting block; the adjusting bolt is connected with the mounting shaft through the adjusting block and the adjusting groove, and the stop bolt is in abutment with the mounting shaft through the adjusting block.

[0009] In one embodiment of the utility model, the fixed teeth are arranged higher than the end face of the mounting shaft, and the damage teeth are arranged lower than the end face of the mounting shaft.

[0010] In one embodiment of the utility model, the inside of the mounting shaft is provided with a cooling channel, and the surface of the mounting shaft is circumferentially provided with a plurality of liquid discharge holes, which are communicated with the cooling channel.

[0011] In one embodiment of the utility model, the axis of the liquid discharge hole is inclined to the axis of the mounting shaft.

[0012] In one embodiment of the utility model, a flow channel is arranged through the inside of the tool holder, and the flow channel is communicated with the cooling channel.

[0013] In one embodiment of the utility model, one end of the flow channel is provided with a water guide pipe, which is communicated with the flow channel and detachably connected with the flow channel.

[0014] In one embodiment of the utility model, the water guide pipe, the flow channel and the cooling channel are coaxially arranged.

[0015] In one embodiment of the utility model, the end of the mounting shaft connected with the tool holder is provided with a first connecting flange, and the end of the tool holder is provided with a second connecting flange matched with the first connecting flange.

[0016] In one embodiment of the utility model, the end face of the side of the mounting shaft close to the adjusting block is provided with a calibration ring, which is coaxially arranged with the mounting shaft.

[0017] In one embodiment of the utility model, the adjusting block is provided with a first mounting groove matched with the breaking tooth, and the mounting shaft is provided with a second mounting groove matched with the fixing tooth.

[0018] The above technical solution of the utility model has the following advantages compared with the prior art:

[0019] The novel adjustable roughness cutter has the following advantages: the height of the tool tooth can be adjusted to effectively control the surface roughness of the hole wall after processing and finely adjust the hole diameter size; the height of the tool tooth can be adjusted to compensate for the main shaft runout and solve the problem of poor product hole diameter and roundness caused by slight runout of the main shaft; and the cutter is close to the actual processing value during manufacturing, so that the difficulty of product size debugging can be greatly reduced during debugging. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the content of the utility model more easily understood, the utility model will be further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, in which

[0021] Figure 1 is the overall structure schematic view of the utility model.

[0022] Figure 2 For Figure 1 The local structure of A in the middle is enlarged;

[0023] Figure 3 For Figure 1 The structural diagram of the installation shaft in the middle is shown;

[0024] Figure 4 For Figure 1 The local structure side view of the installation shaft in the middle is shown;

[0025] Figure 5 The internal structure of the utility model is shown in the sectional view;

[0026] The description of the drawing of the specification is as follows: 1, cutting part; 2, tool handle; 11, installation shaft; 12, fixed tooth; 13, breaking tooth; 14, adjusting groove; 15, adjusting block; 16, adjusting bolt; 17, stop bolt; 21, flow channel; 22, water guide pipe; 23, second connecting flange; 111, first installation groove; 112, second installation groove; 113, calibration ring; 114, first connecting flange; 115, cooling channel; 116, liquid discharge hole. DETAILED DESCRIPTION

[0027] The utility model will be further explained in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0028] Referring to Figures 1-5 The utility model discloses a novel adjustable roughness cutter, including:

[0029] Tool handle 2;

[0030] Cutting part 1, the cutting part 1 includes installation shaft 11, a pair of fixed tooth 12, a pair of breaking tooth 13, adjusting bolt 16 and stop bolt 17, one end of the installation shaft 11 is connected with the tool handle 2, the other end of the installation shaft 11 is opened along the axial direction and is provided with two adjusting grooves 14 and forms two adjusting blocks 15, and the two adjusting blocks 15 are symmetrically arranged on the two sides of the installation shaft 11, a pair of fixed tooth 12 and a pair of breaking tooth 13 are arranged along the surface of the installation shaft 11 periphery, the fixed tooth 12 is connected with the outer edge of the installation shaft 11, and the breaking tooth 13 is connected with the outer edge of the adjusting block 15, the adjusting bolt 16 is connected with the installation shaft 11 by passing through the adjusting block 15 and installation groove, and the stop bolt 17 is abutted with the installation shaft 11 by passing through the adjusting block 15.

[0031] The utility model discloses a cutting tool for boring and reaming, comprising a cutting part 1 and a handle 2, wherein the cutting part 1 is connected with the handle 2, and the cutting part 1 comprises a mounting shaft 11, a fixing tooth 12 and a damaging tooth 13.

[0032] The utility model discloses a cutting tool for boring and reaming, comprising a cutting part 1 and a handle 2, wherein the cutting part 1 is connected with the handle 2, and the cutting part 1 comprises a mounting shaft 11, a fixing tooth 12 and a damaging tooth 13.

[0033] Further, the fixing tooth 12 is higher than the end surface of the mounting shaft 11, and the damaging tooth 13 is lower than the end surface of the mounting shaft 11.

[0034] Specifically, in the actual cutting process, the fixing tooth 12 as the main cutting edge first contacts the workpiece for cutting, and then the damaging tooth 13 is used for roughness modification. Figure 4 As shown in the utility model, the cutting surface of the fixing tooth 12 is 0.5mm higher than the cutting surface of the damaging tooth 13.

[0035] Further, the mounting shaft 11 is internally provided with a cooling channel 115, and the surface of the mounting shaft 11 is circumferentially provided with a plurality of liquid discharge holes 116, which are communicated with the cooling channel 115.

[0036] As a preferred scheme of the utility model, a lateral cooling structure is adopted when cutting the workpiece, and the cooling liquid is sprayed from the surface of the mounting shaft 11 to produce sputtering on the surface of the workpiece during the cutting process, so that the cutting position can be rapidly cooled.

[0037] Preferably, the axis of the liquid discharge hole 116 is inclined to the axis of the mounting shaft 11, so that the cooling liquid can be sprayed to the hole wall and then sputtered into the cutting hole, thereby ensuring the cooling effect.

[0038] Further, the shank 2 is internally provided with a flow channel 21, which is in communication with the cooling channel 115; one end of the shank 2 is provided with a water guide pipe 22, which is in communication with the flow channel 21. The mounting shaft 11 is provided with a first connecting flange 114 at the end connected with the shank 2, and the end of the shank 2 is provided with a second connecting flange 23 matched with the first connecting flange 114.

[0039] Specifically, the end of the mounting shaft 11 with the first connecting flange 114 is connected with the end of the shank 2 with the second flange, and the shank 2 is connected with the machine tool. Similarly, the shank 2 is internally provided with the flow channel 21 for the introduction of the cooling liquid, and the water guide pipe 22 is in communication with one end of the flow channel 21, and the cooling liquid passes through the flow channel 21 and the cooling channel 115 and is sprayed out from the liquid discharge hole 116.

[0040] In the actual cutting process, the dynamic runout of the main shaft cannot be solved by the flange shank 2, and as a preferred scheme of the utility model, the damage teeth 13 are symmetrically provided with two, so as to reduce the runout of the circle and achieve uniform roughness.

[0041] As a preferred scheme of the utility model, the water guide pipe 22 and the flow channel 21 are detachably connected through threads, and the water guide pipe 22, the flow channel 21 and the cooling channel 115 are coaxially arranged.

[0042] Further, the end face of the mounting shaft 11 close to the adjusting block 15 is provided with a calibration ring 113, which is coaxially arranged with the mounting shaft 11.

[0043] Specifically, after the whole cutter is installed with the machine tool, calibration is needed, since the mounting shaft 11, the adjusting block 15 and the calibration ring 113 are integrally formed, and the distance between the calibration ring 113 and the four cutting teeth is close, the runout of the four cutting teeth can be calibrated and detected through the calibration ring 113, when the runout of the calibration ring 113 is within the calibration range, it is considered that the runout of the four cutting teeth is also within the calibration range, so as to ensure the coaxiality of the four cutting teeth.

[0044] Further, the adjusting block 15 is provided with a first installation groove 111 matched with the damage tooth 13, and the mounting shaft 11 is provided with a second installation groove 112 matched with the fixed tooth 12.

[0045] Specifically, the sizes of the damage tooth 13 and the fixed tooth 12 are greater than the sizes of the first installation groove 111 and the second installation groove 112.

[0046] The utility model discloses a novel adjustable roughness cutter, through the adjustment of the height of cutter tooth, can effectively control the surface roughness after hole wall processing and the fine adjustment of hole diameter size, secondly can through the height of cutter tooth, to make up the main shaft runout, solve the problem of the product hole diameter and roundness caused by the slight runout of main shaft, finally, the cutter is made, and the actual processing value is infinitely close, so in the debugging, can greatly reduce the technical difficulty of product size debugging.

[0047] Obviously, the above embodiments are only examples for clearly illustrating, not limiting the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A novel adjustable roughness tooling characterized by, The utility model relates to a cutting tool, including: A handle; A cutting part, the cutting part includes a mounting shaft, a pair of fixed teeth, a pair of damage teeth, an adjusting bolt and a stop bolt, one end of the mounting shaft is connected with the handle, the other end of the mounting shaft is provided with two adjusting grooves along the axial direction to form two adjusting blocks, the two adjusting blocks are symmetrically arranged on the two sides of the mounting shaft, a pair of fixed teeth and a pair of damage teeth are arranged on the surface of the mounting shaft in the circumferential direction, the fixed teeth are connected with the outer edge of the mounting shaft, and the damage teeth are connected with the outer edge of the adjusting block; the adjusting bolt is connected with the mounting shaft through the adjusting block and the adjusting groove, and the stop bolt is in abutment with the mounting shaft through the adjusting block.

2. The novel adjustable roughness tool according to claim 1, wherein: The fixed teeth are arranged higher than the end surface of the mounting shaft, and the damage teeth are arranged lower than the end surface of the mounting shaft.

3. The novel adjustable roughness tool of claim 1, wherein: The inside of the mounting shaft is provided with a cooling channel, and the surface of the mounting shaft is provided with a plurality of drainage holes in the circumferential direction, and the drainage holes are communicated with the cooling channel.

4. The novel adjustable roughness tool of claim 3, wherein: The axis of the drainage hole is inclined to the axis of the mounting shaft.

5. The novel adjustable roughness tool of claim 3, wherein: The inside of the handle is provided with a flow channel, and the flow channel is communicated with the cooling channel.

6. The novel adjustable roughness tool of claim 5, wherein: One end of the flow channel is provided with a water guide pipe, the water guide pipe is communicated with the flow channel, and the water guide pipe and the flow channel are detachably connected.

7. The novel adjustable roughness tool of claim 6, wherein: The water guide pipe, the flow channel and the cooling channel are coaxially arranged.

8. The novel adjustable roughness tool of claim 1, wherein: The end of the mounting shaft connected with the handle is provided with a first connecting flange, and the end of the handle is provided with a second connecting flange matched with the first connecting flange.

9. The novel adjustable roughness tool of claim 1, wherein: The end surface of the side of the mounting shaft close to the adjusting block is provided with a calibration ring, and the calibration ring is coaxially arranged with the mounting shaft.

10. The novel adjustable roughness tool of claim 1, wherein: The adjusting block is provided with a first mounting groove matched with the damage tooth, and the mounting shaft is provided with a second mounting groove matched with the fixed tooth.

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