CN214517797U - Disc-shaped milling cutter - Google Patents
Disc-shaped milling cutter Download PDFInfo
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- CN214517797U CN214517797U CN202120644899.6U CN202120644899U CN214517797U CN 214517797 U CN214517797 U CN 214517797U CN 202120644899 U CN202120644899 U CN 202120644899U CN 214517797 U CN214517797 U CN 214517797U
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Abstract
The utility model belongs to the technical field of milling cutters, in particular to a disc-shaped milling cutter, which comprises a cutter body, wherein the center of the cutter body is provided with a mounting hole, the hole wall of the mounting hole is provided with a key groove, the edge of the cutter body is provided with a plurality of arc-shaped grooves, a cutter head is detachably arranged on each arc-shaped groove, and the cutter body positioned on one side of each arc-shaped groove is provided with a chip groove; the cutter head comprises a ground fixing part, a connecting part and a milling part which are sequentially connected; a plurality of positioning teeth are uniformly distributed on the wall of one side of the arc-shaped groove, the included angle between adjacent positioning teeth is b, and one side of the fixing part is correspondingly provided with a positioning groove; at least two slots are arranged at the bottom of the other side of the arc-shaped slot, the included angle between every two adjacent slots is a, and a clamping slot is correspondingly arranged at the other side of the fixing part; the included angle between the arc-shaped groove and the connecting part of the edge of the cutter body is d, and the included angle between the fixing part and the connecting part is c. The utility model discloses can adjust the tool bit angle to can effectively fix the tool bit.
Description
Technical Field
The utility model belongs to the technical field of milling cutter, concretely relates to disc milling cutter.
Background
A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine. The development of the geometric groove shape of the modern blade ensures that the circular blade has the advantages of stable cutting effect, lower requirement on the power of a machine tool, good stability and the like.
For example, the publication number CN210848517U discloses a disc-shaped milling cutter with an adjustable cutting edge angle, which solves the defect of high manufacturing cost in the prior art, and comprises a cutter holder and a countersunk bolt, wherein the top of the cutter holder is fixedly connected with an annular frame through the countersunk bolt, a plurality of blades are movably hinged between the cutter holder and the annular frame, a rotating disc is rotatably arranged at the center of the cutter holder, the top of the rotating disc is connected with a knob through a screw, the outer side of the rotating disc is movably hinged with a connecting rod which is annularly distributed, the other end of the connecting rod is movably hinged with a sliding block, a user can rotate the knob and drive the sliding block to slide through a connecting rod mechanism, after pushing the wedge block to move, the angle of the blades is driven by the extrusion force of the wedge block to change, the synchronous adjustment of the cutting edge angle is realized, and only one milling cutter is used, so that the cutting processing of most workpieces can be satisfied, the manufacturing cost is greatly reduced.
Still as publication number CN205289880U discloses a cutting edge angle adjustable formula disc milling cutter, including base disc, facing cutter, outer lane reinforcing disc and cutter blade, base disc, facing cutter, outer lane reinforcing disc formula structure as an organic whole, the central point department of putting of base disc is provided with the centre bore, be equipped with the keyway on the centre bore, the base disc outside is equipped with the outer lane reinforcing disc, be equipped with the adjustment disk on the outer lane reinforcing disc, be equipped with the facing cutter on the outer lane reinforcing disc, be equipped with arc recess and angle modulation piece on the facing cutter, install the cutter blade on the milling cutter fixed slot, be equipped with the blade between cutter blade right side and the facing cutter and adjust the space. The utility model discloses a be equipped with arc recess and angle modulation piece on the facing cutter dish, the fixed angle modulation pole that is equipped with between angle modulation piece and the adjustment disk can be according to the cutting requirement of difference, adjusts milling cutter's angle through the rotation regulation dish, improves work efficiency, need not to change the base plate, and the milling cutter piece can be single dismouting, convenient change, reduce cost.
In the disc-shaped milling cutter in the prior art, the cutter head and the cutter body are often integrally formed, and when a single cutter head is damaged, the whole milling cutter is often required to be replaced, so that the cost is high; meanwhile, the disc-shaped milling cutter capable of adjusting the angle of the cutter head in the prior art is complex in structure, difficult to maintain and difficult to machine, and the accuracy of the angle of the cutter head is difficult to guarantee as the use time of the disc-shaped milling cutter is prolonged, the precision of a structural part is reduced.
SUMMERY OF THE UTILITY MODEL
To the above insufficiency, the utility model aims at providing a disc milling cutter.
The utility model provides a following technical scheme:
a disc-shaped milling cutter comprises a cutter body, wherein a mounting hole is formed in the center of the cutter body, a key groove is formed in the wall of the mounting hole, a plurality of arc-shaped grooves are formed in the edge of the cutter body, a cutter head is detachably mounted on each arc-shaped groove, and a chip groove is formed in the cutter body on one side of each arc-shaped groove;
the cutter head comprises a ground fixing part, a connecting part and a milling part which are sequentially connected;
a plurality of positioning teeth are uniformly distributed on the wall of one side of the arc-shaped groove, the included angle between every two adjacent positioning teeth is b, and a positioning groove is formed in one side of the fixing part; at least two slots are arranged at the bottom of the other side of the arc-shaped slot, the included angle between every two adjacent slots is a, and a clamping slot is correspondingly arranged at the other side of the fixing part;
the included angle between the arc-shaped groove and the connecting part of the edge of the cutter body is d, and the included angle between the fixing part and the connecting part is c.
Preferably, the cross-sectional shape of the positioning teeth is triangular.
Preferably, the cross-sectional shape of the slot is hexagonal, and the cross-sectional shape of the slot is trapezoidal.
Preferably, the outer part of the cutter head is treated by adopting a tungsten steel alloy coating.
Preferably, the number of the cutter heads is 12.
Preferably, the center of the arc-shaped groove is provided with a thread groove, the center of the fixing part is provided with a mounting hole, and the fixing part is mounted in the arc-shaped groove through a screw.
Preferably, the angle c is smaller than the angle d.
Preferably, the included angle c ranges from 98 ° to 105 °.
Preferably, a chamfer is arranged on the cutter body.
Preferably, the angle a is a positive integer multiple of the angle b.
The utility model has the advantages that:
1. the utility model has simple structure, convenient maintenance and lower production cost;
2. the utility model can adjust the angle of the tool bit and is suitable for different processing requirements;
3. the utility model discloses can effectively fix the tool bit, the tool bit can not take place the angular migration because of milling cutter live time overlength.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of the tool bit of the present invention;
fig. 3 is a schematic view of the arc-shaped groove structure of the present invention.
Labeled as: the tool body 101, the chamfer 102, the mounting hole 103, the key groove 104, the chip groove 105, the screw 106, the arc-shaped groove 107, the thread groove 108, the slot 109, the positioning tooth 110, the tool bit 200, the fixing portion 201, the mounting hole 202, the positioning groove 203, the clamping groove 204, the connecting portion 205 and the milling portion 206.
Detailed Description
As shown in the drawings, a disc cutter includes a cutter body 101, a mounting hole 103 is formed at the center of the cutter body 101, and a key groove 104 is formed on the wall of the mounting hole 103, so that the cutter can be mounted. The cutter body 101 is provided with a chamfer 102. The edge of the cutter body 101 is provided with a plurality of arc-shaped grooves 107, preferably, the number of the arc-shaped grooves 107 is 12, and the 12 arc-shaped grooves 107 are evenly distributed on the edge of the cutter body 101 in a ring shape. The tool bits 200 are detachably mounted on the arc-shaped groove 107, and 12 tool bits 200 can ensure better milling effect. Since the single cutter head 200 is detachable, when one of the cutter heads 200 is damaged, it can be replaced individually without replacing the entire milling cutter, thereby reducing the production cost. The exterior of the cutting head 200 is treated with a tungsten steel alloy coating, so that the cutting head 200 has high hardness and wear resistance. The tool body 101 on the side of the arc-shaped groove 107 is provided with chip grooves 105.
Specifically, the tool tip 200 includes a ground fixing portion 201, a connecting portion 205, and a milled portion 206, which are connected in this order. A plurality of positioning teeth 110 are uniformly distributed on the groove wall on one side of the arc-shaped groove 107, the positioning teeth 110 are arranged in an arc shape, preferably two, the included angle between the adjacent positioning teeth 110 is b, one side of the fixing part 201 is provided with positioning grooves 203, the number of the positioning grooves 203 is more than that of the positioning teeth 110, and the number of the positioning grooves 203 is preferably three. When the fixing portion 201 is inserted into the arc-shaped slot 107, the positioning teeth 110 should be inserted into the positioning slots 203. At least two slots 109, preferably two slots 109, are arranged at the bottom of the slot on the other side of the arc-shaped slot 107, the slots 109 are arranged in an arc shape, the included angle between adjacent slots 109 is a, and a slot 204 is correspondingly arranged on the other side of the fixing portion 201. After the fixing portion 201 is inserted into the arc-shaped groove 107 and the positioning teeth 110 are inserted into the corresponding positioning grooves 203, the slots 109 may correspond to the catching grooves 204, and pins may be inserted into the catching grooves 204 and the slots 109, so that the fixing portion 201 is caught without circumferential displacement. The included angle a is a positive integer multiple of the included angle b, and the value of the included angle b can be 2-3 degrees. When the angle of the tool bit 200 needs to be adjusted, after the fixing portion 201 deflects by an included angle b, the positioning teeth 110 can still be inserted into the positioning grooves 203, and the slots 109 and the slots 204 can also be made to correspond to each other.
The included angle between the arc-shaped groove 107 and the edge of the cutter body 101 is d, and the included angle between the connecting part 205 and the fixing part 201 is c. The included angle c is smaller than the included angle d, so that a part of the upper edge of the fixing portion 201 protrudes out of the annular groove 107, when the fixing portion 201 rotates, a part of the fixing portion 201 can still be located outside the annular groove 107 to form a stressed portion, and the stability of the tool bit 200 is improved. The included angle c may be selected in the range of 98-105 deg..
In the present embodiment, the positioning teeth 110 are triangular in cross-sectional shape.
In the present embodiment, the cross-sectional shape of the slot 109 is a hexagon, and the cross-sectional shape of the card slot 204 is a trapezoid, that is, the shape of the card slot 204 is a half hexagon.
In this embodiment, the center of the arc-shaped slot 107 is provided with a threaded slot 108, the center of the fixing portion 201 is provided with a mounting hole 202, and the fixing portion 201 can be fixedly mounted in the arc-shaped slot 107 by a screw 106.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A disc-shaped milling cutter comprises a cutter body (101), wherein a mounting hole (103) is formed in the center of the cutter body (101), a key groove (104) is formed in the wall of the mounting hole (103), a plurality of arc-shaped grooves (107) are formed in the edge of the cutter body (101), a cutter head (200) is detachably mounted on each arc-shaped groove (107), and a chip discharge groove (105) is formed in the cutter body (101) on one side of each arc-shaped groove (107); the method is characterized in that:
the tool bit (200) comprises a ground fixing part (201), a connecting part (205) and a milling part (206) which are sequentially connected;
a plurality of positioning teeth (110) are uniformly distributed on the wall of one side of the arc-shaped groove (107), the included angle between adjacent positioning teeth (110) is b, and one side of the fixing part (201) is provided with a positioning groove (203); at least two slots (109) are arranged at the bottom of the other side of the arc-shaped slot (107), the included angle between adjacent slots (109) is a, and a clamping slot (204) is correspondingly arranged at the other side of the fixing part (201);
the included angle between the connection part of the arc-shaped groove (107) and the edge of the cutter body (101) is d, and the included angle between the connection part of the fixing part (201) and the connection part (205) is c.
2. The disc cutter according to claim 1, wherein: the cross section of the positioning tooth (110) is triangular.
3. The disc cutter according to claim 1, wherein: the cross section of the slot (109) is hexagonal, and the cross section of the clamping groove (204) is trapezoidal.
4. The disc cutter according to claim 1, wherein: the exterior of the cutter head (200) is treated by adopting a tungsten steel alloy coating.
5. The disc cutter according to claim 4, wherein: the number of the tool bits (200) is 12.
6. The disc cutter according to claim 4, wherein: the center of the arc-shaped groove (107) is provided with a thread groove (108), the center of the fixing part (201) is provided with a mounting hole (202), and the fixing part (201) is mounted in the arc-shaped groove (107) through a screw (106).
7. The disc cutter according to claim 1, wherein: the included angle c is smaller than the included angle d.
8. The disc cutter according to claim 7, wherein: the included angle c ranges from 98 degrees to 105 degrees.
9. The disc cutter according to claim 1, wherein: a chamfer (102) is arranged on the cutter body (101).
10. The disc cutter according to claim 1, wherein: the angle a is a positive integer multiple of the angle b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120644899.6U CN214517797U (en) | 2021-03-30 | 2021-03-30 | Disc-shaped milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120644899.6U CN214517797U (en) | 2021-03-30 | 2021-03-30 | Disc-shaped milling cutter |
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| Publication Number | Publication Date |
|---|---|
| CN214517797U true CN214517797U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120644899.6U Active CN214517797U (en) | 2021-03-30 | 2021-03-30 | Disc-shaped milling cutter |
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| CN (1) | CN214517797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406329A (en) * | 2021-12-30 | 2022-04-29 | 常州市精尔锐工具制造有限公司 | Assembled disc milling cutter with fine adjustment function |
-
2021
- 2021-03-30 CN CN202120644899.6U patent/CN214517797U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406329A (en) * | 2021-12-30 | 2022-04-29 | 常州市精尔锐工具制造有限公司 | Assembled disc milling cutter with fine adjustment function |
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