CN216028579U

CN216028579U - Gear rough milling cutter with adjustable modulus

Info

Publication number: CN216028579U
Application number: CN202122202703.0U
Authority: CN
Inventors: 杨永德; 朱景耀
Original assignee: Harbin Shanna Tool Manufacturing Co ltd
Current assignee: Harbin Shanna Tool Manufacturing Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-03-15
Anticipated expiration: 2031-09-13

Abstract

A gear rough milling cutter with adjustable modules relates to a gear machining cutter. The numerical control milling cutter solves the problems that the tooth thickness and the tooth depth of the traditional indexable rough milling cutter can not be adjusted all the time and the single module is difficult to machine. The utility model comprises a cutter body, an A adjusting module, a B adjusting module, a C adjusting module and a D adjusting module. The module-adjustable gear rough milling cutter has the advantages of simple structure, convenience in adjustment, reduction in the purchase number of cutter heads for users, capability of being used after adjustment, reduction in the replacement time of the cutter heads, reduction in the purchase period of cutters, reduction in the cost of the cutters and saving in raw material resources.

Description

Gear rough milling cutter with adjustable modulus

Technical Field

The utility model relates to a gear machining cutter, in particular to a gear rough milling cutter with an adjustable module.

Background

At present, the forming milling processing of a gear is basically an integral cutter head of which the modulus corresponds to a rough milling cutter, even though the integral cutter head is substituted, the allowance is large, the adjustment of the tooth thickness among different moduli along with the change of the modulus cannot be realized, the subsequent production processing is not facilitated, so that a large number of milling cutter heads need to be stored in a gear production field, the field management is not facilitated, the purchase cost of the machining cutter head is high, the raw material waste is large, the time is wasted in the replacement of the cutter head in the processing, the processing cost for a user using a cutter is very high, the adjustable modulus gear rough milling cutter is a cutter head which can adjust the tooth thickness of the milling cutter and is researched and developed according to the production requirement and the cost control of the user cutter, the same cutter head can span a plurality of moduli through adjustment (for example, the single-side tooth thickness adjustment range of M16-M22 alpha 20 DEG is 0-2 mm, and the specific modulus range is determined according to the actual design), therefore, one cutter head can replace a plurality of cutter heads in a module range for use, and the cutter cost and the use cost of a user are greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a module-adjustable gear rough milling cutter, aiming at solving the defects that the traditional rough milling cutter with the same module can only process a workpiece with one module, and a new cutter head is needed to be purchased for processing workpieces with other modules, so that more gear milling cutter heads are produced in a production field, the processing cost is high, the raw material waste is large, the replacement time of the cutter head is long, and the processing cost is high, and the technical scheme for solving the problem is as follows:

the utility model relates to a module-adjustable gear rough milling cutter which consists of a cutter body, an A adjusting module, a B adjusting module, a C adjusting module and a D adjusting module, wherein the four modules of the A adjusting module, the B adjusting module, the C adjusting module and the D adjusting module are in a group, and five groups of twenty blocks are arranged on the outer circumference sawtooth-shaped surface of the cutter body in sequence;

the cutter comprises a cutter body and is characterized in that a sawtooth-shaped surface of the outer circumference of the cutter body is provided with a placing groove for an A adjusting module, a B adjusting module, a C adjusting module and a D adjusting module, the sawtooth-shaped surface of the outer circumference of the cutter body is provided with adjusting screw cap grooves, adjusting screw grooves and adjusting key block grooves for the A adjusting module, the B adjusting module, the C adjusting module and the D adjusting module, the adjusting screw cap grooves, the locking nut grooves and the adjusting key block grooves of two adjacent adjusting modules are opposite in direction, one side of each adjusting key block groove is provided with a threaded hole for a compression bolt, two outer side surfaces of the outer circumference of the cutter body are provided with a plurality of locking nut grooves and adjusting screw grooves for the adjusting screws, and the sawtooth-shaped surface of the outer circumference of the cutter body is provided with adjusting reference scales;

the right side surface of the A adjusting module is provided with a short tooth top blade and a left tooth side blade, the short tooth top blade and the left tooth side blade are respectively arranged in the cutter groove and are fastened by a short tooth screw and a tooth side screw, the left side surface of the A adjusting module is provided with an adjusting key block groove, one side of the adjusting key block is embedded in the adjusting key block groove, the adjusting key block is provided with an adjusting screw threaded hole, the adjusting screw is assembled with the adjusting screw threaded hole, a nut cap of the adjusting screw is arranged on the left side, a locking nut is matched with the adjusting screw, a pressing countersunk hole and a pressing bolt clearance hole are arranged on the upper right side of the adjusting key block groove, and the pressing bolt is in threaded connection with the pressing bolt threaded hole on the cutter body through the pressing countersunk hole and the pressing bolt clearance hole;

the left side surface of the B adjusting module is provided with a short tooth top blade and a right tooth side blade, the short tooth top blade and the right tooth side blade are respectively arranged in a cutter groove and are fastened by a short tooth screw and a tooth side screw, the right side surface of the B adjusting module is provided with an adjusting key block groove, one side of the adjusting key block is embedded in the adjusting key block groove, the adjusting key block is provided with an adjusting screw threaded hole, the adjusting screw is assembled with the adjusting screw threaded hole, a screw cap of the adjusting screw is arranged on the right side, a locking nut is matched with the adjusting screw, the upper left side of the adjusting key block groove is provided with a compression countersunk hole and a compression bolt clearance hole, and the compression bolt is in threaded connection with the compression bolt threaded hole on the cutter body through the compression countersunk hole and the compression bolt clearance hole;

the C adjusting module and the A adjusting module are different in that the tooth top blade of the A adjusting module is a short tooth top blade, the tooth top blade of the C adjusting module is a long tooth top blade, the position of the left tooth side blade moves downwards, and other structures are the same;

the difference between the D adjusting module and the B adjusting module is that the tooth top blade of the B adjusting module is a short tooth top blade, the tooth top blade of the D adjusting module is a long tooth top blade, the position of the right tooth side blade moves downwards, and other structures are the same.

The module-adjustable gear rough milling cutter is simple in structure and convenient to adjust, changes the traditional rough machining concept, overcomes the defects that the traditional rough cutter has large cross-module machining allowance and the full tooth depth is not long enough, can adjust any appropriate module in a module range (the module of the utility model is M16-M22, a pressure angle alpha is 20 degrees, a unilateral tooth thickness adjusting range is 0-2 mm, and the specific module range is determined according to actual design), reduces the purchase number of cutter heads, saves raw material resources, can be used after adjustment, reduces the replacement time of the cutter heads, improves the machining efficiency, reduces the purchase period of the cutter, and reduces the cost of the cutter. Really realizes the multi-purpose of one knife.

Drawings

Fig. 1 is a schematic structural view of the present invention, fig. 2 is a left side view of fig. 1, fig. 3 is a front view of a cutter body, fig. 4 is a right side view of fig. 3, fig. 5 is a schematic structural view of an a adjustment block of fig. 1, fig. 6 is a left side view of fig. 5, fig. 7 is a right side view of fig. 5, fig. 8 is a bottom view of fig. 5, fig. 9 is a front view of a B adjustment block of fig. 1, fig. 10 is a right side view of fig. 9, fig. 11 is a left side view of fig. 9, fig. 12 is a bottom view of fig. 9, fig. 13 is a left side view of a C adjustment block, fig. 14 is a right side view of a D adjustment block, fig. 15 is a front view of an adjustment screw, fig. 16 is a right side view of fig. 15, fig. 17 is a front view of an adjustment key block, fig. 18 is a 3D view of fig. 17, fig. 19 is a front view of an adjustment lock nut, fig. 20 is a right side view of fig. 19, fig. 21 is an assembly view of the cutter body and ABCD adjustment block, fig. 22 is a schematic adjustment block of a adjustment block, fig. 23 is a schematic view of adjustment 3D of the B adjustment module, fig. 24 is a schematic view of adjustment of normal tooth form overlapped by the ABCD adjustment module, fig. 25 is a schematic view of adjustment of normal tooth form overlapped by the ABCD adjustment module to be maximum, fig. 26 is a schematic view of adjustment of tooth form overlapped by the ABCD adjustment module to be minimum, fig. 27 is a diagram of normal tooth form overlapped by the a adjustment module and the B adjustment module, fig. 28 is a diagram of normal tooth form overlapped by the C adjustment module and the D adjustment module, fig. 29 is a diagram of normal tooth form overlapped by the ABCD adjustment module, fig. 30 is a front view of the adjusted cutter, fig. 31 is a diagram of 3D of fig. 30, fig. 32 is a front view of a long addendum blade, fig. 33 is a top view of fig. 32, fig. 34 is a front view of a short addendum blade, fig. 35 is a top view of fig. 34, fig. 36 is a front view of a tooth-side blade, fig. 37 is a top view of fig. 36, fig. 38 is a schematic view of a calculated blank, fig. 39 is a schematic view of fitting of the a adjustment module assembled on a cutter body, FIG. 40 is a 3D diagram of an adjustment module. In the drawing, 2-15 are short tooth top blade chip grooves, 2-16 are left tooth side blade chip grooves, 3-15 are short tooth top blade chip grooves, and 3-17 are right tooth side blade chip grooves.

Detailed Description

The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 40. The cutter comprises a cutter body 1, an A adjusting module 2, a B adjusting module 3, a C adjusting module 4 and a D adjusting module 5, wherein the A adjusting module 2, the B adjusting module 3, the C adjusting module 4 and the D adjusting module 5 form a group, five groups of twenty blocks are arranged on the outer circumference sawtooth-shaped surface of the cutter body 1 in sequence, and the A adjusting module 2, the B adjusting module 3, the C adjusting module 4 and the D adjusting module 5 are connected with the outer circumference sawtooth-shaped surface of the cutter body 1;

the serrated surface of the outer circumference of the cutter body 1 is provided with a placing groove 1-6 of an A adjusting module 2, a B adjusting module 3, a C adjusting module 4 and a D adjusting module 5, the serrated surface of the outer circumference of the cutter body 1 is provided with an adjusting screw cap groove 1-1, an adjusting screw groove 1-3 and an adjusting key block groove 1-4 of the A adjusting module 2, the B adjusting module 3, the C adjusting module 4 and the D adjusting module 5, the directions of the adjusting screw cap grooves, the locking nut grooves and the adjusting key block grooves of two adjacent adjusting modules are opposite, one side of the adjusting key block groove 1-4 is provided with a threaded hole 1-2 of a compression bolt, two outer side surfaces of the outer circumference of the cutter body 1 are provided with a plurality of locking nut grooves 1-5 of adjusting screws and adjusting screw grooves 1-8, and the sawtooth-shaped surface of the outer circumference of the cutter body 1 is provided with adjusting reference scales 1-7;

the right side surface of the A adjusting module 2 is provided with a short tooth top blade 2-1 and a left tooth side blade 2-3, the short tooth top blade 2-1 and the left tooth side blade 2-3 are respectively arranged in the cutter groove and fastened by a short tooth screw 2-2 and a tooth side screw 2-4, the left side surface of the A adjusting module 2 is provided with an adjusting key block groove 2-5, one side of the adjusting key block 2-6 is embedded in the adjusting key block groove 2-5, the other side is arranged in the adjusting key block groove 1-4, the adjusting key block 2-6 is provided with an adjusting screw threaded hole 2-7, an adjusting screw 2-8 is assembled with the adjusting screw threaded hole 2-7, the nut cap of the adjusting screw 2-8 is embedded in the adjusting screw cap groove 1-1 and the adjusting screw groove 1-3 on the left side with the adjusting screw 2-8, the locking nut 2-11 is matched with the adjusting screw 2-8, a pressing countersunk hole 2-9 and a pressing bolt clearance hole 2-12 are arranged at the right upper part of the adjusting key block groove 2-5, and the pressing bolt 2-10 is in threaded connection with a threaded hole 1-2 of the pressing bolt on the cutter body 1 through the pressing countersunk hole 2-9 and the pressing bolt clearance hole 2-12;

the left side surface of the B adjusting module 3 is provided with a short addendum blade 3-1 and a right tooth side blade 3-3, the short addendum blade 3-1 and the right tooth side blade 3-3 are respectively arranged in the cutter groove and fastened by a short tooth screw 3-2 and a tooth side screw 3-4, the right side surface of the B adjusting module 3 is provided with an adjusting key block groove 3-5, one side of an adjusting key block 3-6 is embedded in the adjusting key block groove 3-5, an adjusting screw threaded hole 3-7 is arranged on the adjusting key block 3-6, an adjusting screw 3-8 is assembled with the adjusting screw threaded hole 3-7, the nut cap of the adjusting screw 3-8 is arranged on the right side, a locking nut 3-11 is matched with the adjusting screw 3-8, and a pressing countersunk hole 3-9 and a pressing bolt clearance hole 3-12 are arranged on the left upper part of the adjusting key block groove 3-5, the hold-down bolt 3-10 is in threaded connection with a threaded hole 1-2 of the hold-down bolt on the cutter body 1 through a hold-down countersunk hole 3-9 and a hold-down bolt clearance hole 3-12;

the C adjusting module 4 is different from the A adjusting module 2 in that the tooth top blade of the A adjusting module 2 is a short tooth top blade 2-1, the tooth top blade of the C adjusting module 2 is a long tooth top blade 4-1, the position of the tooth side blade 4-3 is moved downwards, and other structures are the same;

the difference between the D adjusting module 5 and the B adjusting module 3 is that the tooth top blade of the B adjusting module 3 is a short tooth top blade 3-1, the tooth top blade of the D adjusting module 5 is a long tooth top blade 5-1, the position of the tooth side blade 5-3 moves downwards, and other structures are the same.

The second embodiment is as follows: this embodiment will be described with reference to fig. 1, 7, 11, and 40. The adjustment key block grooves 2-5 and the adjustment key blocks 2-6 are in interference fit, so that the adjustment module A2 can move synchronously when the adjustment screws 2-8 drive the adjustment key blocks 2-6 to move.

The third concrete implementation mode: the embodiment is described with reference to fig. 1, 7 and 11, and the pressing counter bores 2 to 9 and the pressing bolt clearance holes 2 to 12 in the embodiment are round rectangles, the adjusting length is 3mm, the length adjusting range is 0 to 2mm, and the adjusting requirement of the modulus is met.

The fourth concrete implementation mode: this embodiment will be described with reference to fig. 1, 4, 22, and 23. The size of the adjusting key block groove 1-3 on the cutter body 1 is 3-4 mm larger than that of the adjusting key block 2-6, the adjusting range is 0-2 mm, and the requirement of the adjusting range is met.

The fifth concrete implementation mode: this embodiment will be described with reference to fig. 1, 4, 22, 23, and 39. The gap between the screw cap groove and the screw cap is adjusted to be 0.5 mm-1 mm.

The sixth specific implementation mode: this embodiment will be described with reference to fig. 1, 2, and 5. In the blanking process of the a adjusting module 2, the B adjusting module 3, the C adjusting module 4 and the D adjusting module 5 according to the embodiment, the blanking can be increased according to the actual diameter D of the cutter, specifically equal to D + (1+1/cos18) × W × tan18 × 2, and then the main body part and the adjusting module part are cut off by using the wire cutting allowance to be used as blank materials for the subsequent processing of the main body and the adjusting module, so that the processing raw materials of the cutter are greatly saved.

The seventh embodiment: this embodiment will be described with reference to fig. 1, 24, 25, 26, 27, 28, and 29. The normal tooth shape of the cutter described in the embodiment is like a herringbone structure, the design according to the rack tooth shape can also be adjusted according to the actual requirement, the full tooth depth is designed according to the maximum modulus, and the left and right tooth shapes can be adjusted respectively by taking the center as the reference to the left and right sides.

The specific implementation mode is eight: the adjusting and locking nuts 2-11 according to the embodiment are described with reference to fig. 1, 19 and 20, wherein one end of each adjusting and locking nut is internally threaded and matched with an adjusting screw 2-8, the other end of each adjusting and locking nut is convenient to adjust and process, and the other end of each adjusting and locking nut 2-11 is made into an inner hexagon so as to be convenient to adjust.

The specific implementation method nine: this embodiment will be described with reference to fig. 1, 21, 22, 23, 30, and 31. In this embodiment, the short addendum blade 2-1, the long addendum blade 4-1, the left tooth side blade 2-3, and the left tooth side blade 4-3 of the a adjustment module 2 and the C adjustment module 4 are arranged at the same side, and the short addendum blade 3-1, the right tooth side blade 3-3, the long addendum blade 5-1, and the right tooth side blade 5-3 of the B adjustment module 3 and the D adjustment module 5 are arranged at the same side, so as to avoid generating processing vibration, and the adjustment can be performed synchronously. The indexable hard alloy long tooth top blade covers the short tooth top blade and the adjacent tooth side blade, the actual length of the blade is designed according to the specific modulus, and the lapped gap between the short tooth top blade and the tooth side blade is covered by the long tooth top blade, so that a cutting step is not formed, and the sufficient number of the tooth top blades is ensured.

The detailed implementation mode is ten: the adjustment ranges of the a adjustment module 2, the B adjustment module 3, the C adjustment module 4, and the D adjustment module 5 according to the present embodiment described with reference to fig. 1, 2, 24, 25, and 26 are applied to moduli M10 to M40.

The concrete implementation mode eleven: this embodiment will be described with reference to fig. 1 and 2. The cutter body 1 of the embodiment adopts the inner hole and the end face for positioning, and the end face key groove transmits power for processing.

The specific implementation mode twelve: this embodiment will be described with reference to fig. 1, 2, 24, 25, and 26. The tooth thickness adjustment range of the present embodiment is set to a pressure angle α of 20 ° in accordance with the modulus M16 to M22, and the tooth thickness adjustment range of a single tooth is set to 0 to 2 mm.

And (3) adjusting:

when the module of the part processed by the cutter needs to be adjusted, firstly, a wrench 21 is used for loosening the compression bolts 2-10 on the adjustment module A2, a wrench 16 is used for inserting into the adjustment locking nut grooves 1-5 to unload the adjustment locking nuts 2-11, a wrench 20 is used for inserting into the adjustment screw grooves 1-8 of the adjustment screws 2-8, the adjustment screws 2-8 are rotated to realize that the adjustment module A2 horizontally moves leftwards or rightwards on the end surface of the cutter body 1, so that the purpose of adjusting the tooth thickness is achieved, after the adjustment to the required module position, the adjustment locking nuts 2-11 are screwed up and locked, then the compression bolts 2-10 are screwed, and each adjustment module A2 and each adjustment module C4 are adjusted according to the steps;

adjusting the B adjusting module 3, firstly loosening the compression bolts 3-10 by using a wrench 21, inserting a wrench 16 into adjusting locking nut grooves 1-5 to disassemble adjusting locking nuts 3-11, inserting a wrench 20 into adjusting screw grooves of adjusting screws 3-8, rotating the adjusting screws 3-8 to horizontally move the B adjusting module 3 leftwards or rightwards on the end surface, so as to achieve the purpose of adjusting the tooth thickness, screwing and locking the adjusting locking nuts 3-11 after adjusting to a required module position, then screwing the compression bolts 3-10, and adjusting each B adjusting module 3 and each D adjusting module 5 according to the steps; the consistency of each adjusting module can be adjusted by referring to the adjusting scales arranged on the surface plane of the outer circumference of the cutter body 1;

and each adjusting module needs to be accurately adjusted in a mode of beating the end face runout of the addendum cutter by using a dial indicator or a dial indicator.

The above embodiments are merely exemplary and not restrictive, and it should be understood that various other changes, modifications, substitutions and alterations can be made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a gear rough milling cutter of adjustable modulus, it comprises cutter body, A adjusting module, B adjusting module, C adjusting module and D adjusting module, its characterized in that: the cutter comprises a cutter body, an A adjusting module, a B adjusting module, a C adjusting module and a D adjusting module, wherein the A adjusting module, the B adjusting module, the C adjusting module and the D adjusting module are in a group, five groups of twenty blocks are formed in total and are sequentially arranged on the outer circumference sawtooth-shaped surface of the cutter body, and the A adjusting module, the B adjusting module, the C adjusting module and the D adjusting module are connected with the outer circumference sawtooth-shaped surface of the cutter body;

2. The module adjustable gear roughing mill according to claim 1, wherein: the adjusting key block groove is in interference fit with the adjusting key block.

3. The module adjustable gear roughing mill according to claim 1, wherein: the compression countersunk hole and the compression bolt clearance hole are designed into a round rectangle, and the adjustment length is 3 mm.

4. The module adjustable gear roughing mill according to claim 1, wherein: the gap between the adjusting screw cap groove and the adjusting screw cap is 0.5 mm-1 mm.

5. The module adjustable gear roughing mill according to claim 1, wherein: the short tooth top blade, the long tooth top blade and the left tooth side blade of the A adjusting module and the C adjusting module are arranged at the same side, and the short tooth top blade, the long tooth top blade and the right tooth side blade of the B adjusting module and the D adjusting module are arranged at the same side.

6. The module adjustable gear roughing mill according to claim 1, wherein: the size of the adjusting key block groove on the cutter body is 3-4 mm larger than that of the adjusting key block.

7. The module adjustable gear roughing mill according to claim 1, wherein: according to the modulus M16-M22, the pressure angle alpha is 20 degrees, and the adjusting range of each adjusting module is 0-2 mm.

8. The module adjustable gear roughing mill according to claim 1, wherein: the adjusting ranges of the adjusting module A, the adjusting module B, the adjusting module C and the adjusting module D are suitable for gear rough milling cutters with module numbers of M10-M40.