Cylindrical gear machining tool

Abstract

The utility model discloses a cylindrical gear machining cutter, which relates to the field of cutters and comprises a left cutter shaft and a right cutter shaft, a cutter wheel is sleeved on the cutter shaft, an embedding groove is arranged on the outer side of the cutter wheel, a rack is embedded in the embedding groove, cutter teeth are fixed on the rack, the right end of the cutter wheel is fixedly connected with a right end cover, the right end cover is in sliding connection with the right cutter shaft, and the left end of the cutter wheel is inserted into a left end cover. The left end cover is fixedly connected with the left cutter shaft, the left end cover is fixedly connected with an insertion block inserted into the caulking groove, the insertion block is fixedly connected with a cooling liquid pipe, the cooling liquid pipe is inserted into the caulking groove, and a liquid hole is formed in the rack; and the caulking groove and the rack can be drawn out after reverse rotation, local rack replacement can be carried out under the shutdown condition, and the cutter replacement difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cutter field especially relates to cylindrical gear processing cutter. BACKGROUND

[0002] Cylindrical gear is the gear of circular, has straight tooth, helical tooth division, and the processing mode of cylindrical gear has casting, milling, hobbing, extrusion etc.

[0003] The cutter of the hobbing cutter can be replaced locally, but needs to be replaced after the cutter is disassembled as a whole, and cannot be replaced on the processing machine tool. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the deficiency of prior art problem, the utility model aims at providing a cylindrical gear processing cutter, and the embedding groove and the rack can be reversed and drawn out, the local rack replacement can be carried out under the condition of shutdown, and the cutter replacement difficulty is reduced.

[0005] In order to solve the prior art problem, the technical scheme of the utility model is as follows:

[0006] A cylindrical gear processing cutter, including left part cutter shaft, right part cutter shaft, the cutter shaft is sleeved with cutter wheel, the embedding groove is set up outside cutter wheel, the rack is embedded in embedding groove, the cutter tooth is fixed on rack, the right end cover is fixedly connected to the right end of cutter wheel, the right end cover is slidably connected with right part cutter shaft, the left end cover is inserted to the left end of cutter wheel, the left end cover is fixedly connected with left part cutter shaft, the plug block that is inserted with embedding groove is fixedly connected on left end cover, the cooling liquid pipe is fixedly connected on plug block, the cooling liquid pipe is inserted with embedding groove, and the liquid hole is set up on rack.

[0007] Preferably, the embedding groove section is T-shaped, the plug block section is same with cutter groove section, and the rack is embedded in one side of embedding groove and is slidably connected with embedding groove.

[0008] Preferably, the anti-skid lines that are axially distributed are respectively arranged on rack and in embedding groove, and the rack is abutted at the head and tail.

[0009] Preferably, the cooling liquid pipe is pasted to the other side of embedding groove, the linear array liquid hole is set up on cooling liquid pipe, and the gap is left between cooling liquid pipe and rack.

[0010] Preferably, the passageway that is communicated with cooling liquid pipe is set up in the inside of left end cover, and the passageway is communicated with the passageway in the inside of left part cutter shaft.

[0011] Preferably, the cutter wheel is internally provided with a key groove, and a flat key is fixedly connected on the cutter shaft and located in the key groove.

[0012] Preferably, the right end cover is provided with a through hole aligned with the middle part of the embedding groove.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The rack connected with the embedding groove can be stably connected in the forward rotation condition of the rack, and the rack can be directly pulled out along the radial direction of the cutter wheel after being slid out of the embedding groove in the reverse rotation condition, so that the local rack can be replaced.

[0015] 2. The embedding groove is provided with a cooling liquid pipe connected with the passageway in the left end cover and the left cutter shaft, so that the cooling can be started from the embedding groove, the adhered scraps between the cutter teeth can be flushed out from the inside of the gap between the cutter teeth by the cooling liquid discharged from the embedding groove. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a longitudinal sectional view of the utility model;

[0018] Figure 3 It is a structural schematic view of the cutter wheel and the left end cover of the utility model;

[0019] Figure 4 It is a structural schematic view of the left cutter shaft and the left end cover of the utility model;

[0020] Figure 5 It is a structural schematic view of the cutter wheel of the utility model;

[0021] The figure mark: 1, the right cutter shaft; 11, flat key; 2, left cutter shaft; 21, left end cover; 22, insert block; 23, cooling liquid pipe; 231, liquid hole; 3, cutter wheel; 31, right end cover; 311, through hole; 32, embedding groove; 33, key groove; 4, rack; 5, cutter tooth. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] For example, Figures 1-5As shown, a cylindrical gear machining tool, in assembly, the right part of the tool shaft 1 is inserted into the shaft hole in the middle of the cutter wheel 3 from the guide wheel right end, the fixed flat key 11 on the tool shaft is opposite to the key groove 33, so that the tool shaft is fixed radially with the cutter wheel 3, a plurality of racks 4 are placed in the embedding groove 32 respectively, the plurality of racks 4 are connected end to end, then rotate the rack 4, the rack 4 is inserted in the embedding groove 32, then the left part of the tool shaft 2 fixedly connected with the left end cover 21 is inserted into the shaft hole in the middle of the cutter wheel 3 from the left end of the cutter wheel 3, the plug block 22 is inserted in the slot side, the cooling liquid pipe 23 is located on the opposite side of the embedding groove 32 inserted with the rack 4, after the tool assembly is completed, in use, the tool is connected to the machine tool, the left part of the tool shaft 2 is fixed through the shaft sleeve on the output shaft of the machine tool, the right part of the tool shaft 1 is extruded to the left through the pressing frame on the machine tool, so that the left end cover 21 is tightly attached to the cutter wheel 3, at the same time, the plug block 22 extrudes the rack 4, so that the rack 4 is fixed in the embedding groove 32, when the lathe motor rotates, the tool is driven to rotate, the tool teeth 5 gradually cut off the excess material on the blank, with the downward movement of the tool, the blank forms the gear groove from top to bottom.

[0024] During the use of the tool, the channel in the left part of the tool shaft 2 is rotatably connected and communicated with the cooling liquid supply device, the cooling liquid enters the cooling liquid pipe 23 through the channel in the left part of the tool shaft 2 and the left end cover 21, the liquid hole 231 is arranged on the cooling liquid pipe 23, so that the cooling liquid enters the slot, the liquid hole 231 is arranged on the rack 4, so that the cooling liquid flows from the inside to the outside, which has the effect of overall cooling, and can also flush away the debris adhered between the tool teeth 5, the through hole 311 is arranged on the right end cover 31 for discharging the debris entering the embedding groove 32.

[0025] When the tool teeth 5 are worn after use, the corresponding rack 4 is replaced with the same rack 4, so that the rack 4 corresponds to the helix angle of the upper and lower racks 4, when replacing, the machine tool is first stopped, the fastening structure for clamping the left end cover 21 is loosened, the plug block 22 in the left end cover 21 is extracted from the embedding groove 32, all the racks 4 are rotated, so that the rack 4 slides in the embedding groove 32 to the state that the rack 4 is in contact with the left end of the embedding groove 32 on the outside, at this time, the rack 4 is in an extractable state, the corresponding rack 4 corresponding to the damage is extracted, after the new rack 4 is replaced, all the racks 4 are reversely rotated, the left end cover 21 moves to the right, so that the rack 4 is fixed, which can quickly recover the machining, the anti-skid lines are arranged on the embedding groove 32 and the rack 4 respectively, so that the rack 4 is fixedly connected with the cutter wheel 3 in the axial direction.

[0026] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cylindrical gear machining tool, characterized by The utility model discloses a left part cutter shaft (2), right part cutter shaft (1), cutter shaft is covered with cutter wheel (3), the cutter wheel (3) outside is provided with the slot (32), the slot (32) is inlayed rack (4), and the rack (4) is fixed with cutter tooth (5), and the right end of cutter wheel (3) is fixedly connected right end cover (31), and right end cover (31) is slidably connected with right part cutter shaft (1), and the left end of cutter wheel (3) is inserted left end cover (21), and left end cover (21) is fixedly connected with left part cutter shaft (2), and left end cover (21) is fixedly connected with the plug block (22) of the insertion of slot (32), and the plug block (22) is fixedly connected cooling liquid pipe (23), and cooling liquid pipe (23) is inserted with slot (32), and the rack (4) is provided with liquid hole (231).

2. A cylindrical gear machining tool according to claim 1, characterized in that The slot (32) is T-shaped, the cross section of the plug block (22) is the same as the cross section of the cutter slot, the rack (4) is embedded in one side of the slot (32) and is in sliding connection with the slot (32).

3. A cylindrical gear machining tool according to claim 2, characterized in that The rack (4) and the slot (32) are respectively provided with anti-skid lines distributed in the axial direction, and the rack (4) is in end-to-end abutment.

4. A cylindrical gear machining tool according to claim 2, characterized in that The cooling liquid pipe (23) is attached to the other side of the slot (32), the cooling liquid pipe (23) is provided with linearly arrayed liquid holes (231), and a gap is left between the cooling liquid pipe (23) and the rack (4).

5. A cylindrical gear machining tool according to claim 4, characterized in that The left end cover (21) is provided with a channel in communication with the cooling liquid pipe (23), and the channel is in communication with the channel in the left part cutter shaft (2).

6. A spur gear machining tool according to claim 1, wherein The cutter wheel (3) is provided with a key groove (33) inside, and a flat key (11) is fixedly connected to the cutter shaft and located in the key groove (33).

7. A cylindrical gear machining tool according to claim 1, characterized in that The right end cover (31) is provided with a through hole (311) aligned with the middle part of the slot (32).

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