CN210817498U - Three-layer stepped large-diameter boring cutter for machining front shell of transmission case - Google Patents
Three-layer stepped large-diameter boring cutter for machining front shell of transmission case Download PDFInfo
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- CN210817498U CN210817498U CN201920985164.2U CN201920985164U CN210817498U CN 210817498 U CN210817498 U CN 210817498U CN 201920985164 U CN201920985164 U CN 201920985164U CN 210817498 U CN210817498 U CN 210817498U
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Abstract
The utility model relates to a three-layer ladder major diameter boring cutter for processing derailleur case front shell mainly comprises first layer cutter body, boring cutter smooth fast, boring cutter blade holder, slider bolt, blade holder bolt, diameter adjusting bolt, second floor cutter body, third layer cutter body 11 and cutter body bolt. The utility model discloses can the simultaneous processing three different diameters's ladder hole to the cutter, every layer of cutter body adopts telescopic hollow cutter body simultaneously, and weight is light, simple structure, and every layer of cutter body adopts the boring cutter slider and the boring cutter blade holder of equidimension moreover, and the unified standard of module possesses modularization and adjustability, and each hole depth of machining is adjustable also in addition, and the preparation is convenient, low cost to realize the purpose of a three major diameter hole of cutter processing, the hole axiality of processing is high, and the uniformity is good.
Description
Technical Field
The utility model relates to a boring cutter of processing major diameter ladder hole, in particular to three-layer ladder major diameter boring cutter for processing derailleur front shell.
Background
The boring cutter is one kind of boring cutter, and is widely used in numerical control machining for rough machining, semi-finish machining or finish machining of existing holes, generally machining range from 4mm to 200mm and other large-diameter special inner hole machining boring cutters. For processing a stepped inner hole of a transmission front shell with the diameter of about 300mm, multiple boring cutters are generally adopted for multi-sequence processing, but the boring cutter is heavy in structure, heavy in weight and low in price, and meanwhile, due to multi-sequence processing, the coaxiality precision of each hole is easily reduced and unstable, so that the product quality is reduced, and the rejection rate is high.
Chinese patent CN104646699B discloses an adjustable double-edged large-diameter boring tool with a toothed meshing structure, which comprises a bridge body arranged on a boring tool connecting handle, two tool rests symmetrically arranged at two ends of the bridge body, and a tool bit, wherein v-shaped grooves and first toothed grooves are respectively arranged at two sides of the bridge body, a second toothed groove is arranged at a position where the tool rest is connected with the bridge body, and a third toothed groove is arranged at the tool rest and the tool bit. The double-blade large-diameter boring cutter can quickly realize the adjustment of the boring cutter, improves the cutting precision and the working efficiency, and ensures the service life of the large-diameter boring cutter. The boring cutter holders are symmetrically arranged at two ends of the bridge body, but the cutter holder blocks are large and heavy, only one diameter can be processed at one time, and the universality is low.
Chinese patent CN104646699B discloses an adjustable large boring cutter, which comprises a boring disc, two adjusting seats and two boring cutter seats, wherein the upper surface of the boring disc is provided with a first guide groove along the length direction thereof, the two adjusting seats are symmetrically installed at two ends of the boring disc, the boring cutter seats and the adjusting seats can be relatively fixed, and boring cutter holes are formed at the end parts of the boring cutter seats. The large boring cutter is used for machining the hole diameter larger than 1400 mm. The cutter body belongs to the bridge type, but is too heavy, and can only process one diameter at a time.
Chinese patent CN202239688U discloses a boring cutter disc, the fixed supporting pad that is provided with on the outer peripheral surface of this boring cutter disc, wherein blade disc thickness is not less than this boring cutter disc half-accurately, the length that the thickness direction of boring cutter disc extends is not less than the half of the thickness of this boring cutter disc in boring cutter disc and the boring cutter subassembly, through the thickness that increases boring cutter disc to increase the contact surface that the supporting pad can increase boring hole in-process boring cutter disc and hole inner wall, thereby increased the straightness and the stability of boring cutter subassembly at the bore hole in-process, and consequently reduced the wall thickness difference of work pieces such as the cylinder that processing obtained. The boring cutter head structure with the supporting pads arranged on the periphery is adopted, but the supporting pads are easy to wear, the cutter body is thick, the weight is large, and the processability is single.
Disclosure of Invention
An object of the utility model is to above-mentioned prior art not enough, provide a boring cutter for processing shell major diameter ladder hole before derailleur case, solve the many cutters of needs clamping that current part major diameter hole processing exists, each hole axiality is unstable moreover to major diameter boring cutter is expensive, and weight is big, and a cutter can only process a size and does not possess the commonality scheduling problem of convertibility.
The utility model aims at realizing through the following technical scheme:
a three-layer stepped large-diameter boring cutter for machining a front shell of a transmission case mainly comprises a first layer cutter body 1, a boring cutter slide block 2, a boring cutter holder 3, a slider bolt 4, a holder bolt 5, a diameter adjusting bolt 6, a second layer cutter body 10, a third layer cutter body 11 and a cutter body bolt 12;
the first layer of cutter bodies 1 are used for machining a first layer of large-diameter inner hole, two symmetrical sides of each cutter body are connected with two boring cutter sliding blocks (2), and each boring cutter sliding block 2 can axially slide through two sliding block bolts 4 and is used for adjusting the axial distance; the boring tool apron 3 is connected with the boring tool slide block 2 through an apron bolt 5, two slide key grooves are arranged on the boring tool slide block 2 and are in radial slide fit with the boring tool apron 3, and axial machining size precision can be adjusted through a diameter adjusting bolt 6;
the two sides of the second layer of cutter body 10 are also connected with two boring cutter sliders 2 and a boring cutter holder 3 in the same way, and form an included angle of-45 degrees with the first layer of cutter body 1 at the same time for processing a second layer of large-diameter inner holes;
the third layer of cutter body 11 is fixedly connected with the second layer of cutter body 10 through a cutter body bolt 12, two boring cutter holders 3 are connected to two symmetrical sides of the third layer of cutter body 11, and an included angle of 45 degrees is formed between the third layer of cutter body and the first layer of cutter body 1, so that the third layer of cutter body is used for machining a large-diameter inner hole of the third layer.
And a connecting bolt 7 and a connecting washer 8 are arranged between the second layer cutter body 10 and the first layer cutter body 1.
The angle between the connecting lines of the cutting edges between the first layer of cutter body 1 and the second layer of cutter body 10 and the third layer of cutter body 11 is 45 degrees and-45 degrees respectively, and the angles are uniformly distributed on two symmetrical sides of the cutter; the boring tool slide block 2 connected with two symmetrical sides of the cutter body is provided with a sliding groove, can axially slide through two slide block bolts 4 and is used for adjusting the axial distance size, a sliding key on the boring tool holder 3 is matched with the sliding groove of the boring tool slide block 2, and the axial machining size precision is adjusted through a diameter adjusting bolt (6); the third layer of cutter body 11 is symmetrically provided with sliding grooves at two sides, and the sliding grooves are matched with sliding keys on the boring cutter holder 3 to adjust the radial size. The third layer of cutter body 11 is a thin disc type cutter body.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses can the simultaneous processing three different diameters's ladder hole to the cutter, every layer of cutter body adopts telescopic hollow cutter body simultaneously, and weight is light, simple structure, and every layer of cutter body adopts the boring cutter slider and the boring cutter blade holder of equidimension moreover, and the unified standard of module possesses modularization and adjustability, and each hole depth of machining is adjustable also in addition, and the preparation is convenient, low cost to realize the purpose of a three major diameter hole of cutter processing, the hole axiality of processing is high, and the uniformity is good.
Drawings
FIG. 1 is an isometric view of a boring tool in accordance with the practice of the present invention;
FIG. 2 is an elevation view of a boring tool in accordance with the practice of the present invention;
fig. 3 is an isometric view of the blade body in the practice of the invention;
fig. 4 is an isometric view of the blade body in the practice of the invention;
fig. 5 is an isometric view of the boring slide in the practice of the present invention;
figure 6 is an isometric view of a boring tool holder in the practice of the present invention.
In the figure, 1, a layer of cutter bodies 2, a boring cutter slide block 3, a boring cutter seat 4, a slider bolt 5, a seat bolt 6, a diameter adjusting bolt 7, a connecting bolt 8, a connecting washer 9, a handle bolt 10, a second layer of cutter bodies 11, a third layer of cutter bodies 12 and a cutter body bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are used for explaining the present invention without limitation.
As shown in fig. 1 and 2, the utility model provides a major diameter boring cutter for processing three-layer ladder hole comprises first layer cutter body 1, boring cutter smooth fast 2, boring cutter blade holder 3, slider bolt 4, blade holder bolt 5, diameter adjusting bolt 6, connecting bolt 7, connecting washer 8, handle of a knife bolt 9, second layer cutter body 10, third layer cutter body 11 and cutter body bolt 12, assembles all spare parts together.
The first layer of cutter bodies 1 are used for machining a first layer of large-diameter inner hole, two symmetrical sides of the cutter bodies are connected with two boring cutter sliding blocks 2, the boring cutter sliding blocks 2 can axially slide through two sliding block bolts 4 and are used for adjusting the size of an axial interval, a boring cutter holder 3 is connected with the boring cutter sliding blocks 2 through a holder bolt 5, two sliding key grooves are formed in the boring cutter sliding blocks 2 and are in radial sliding fit with the boring cutter holder 3, and axial machining size precision can be adjusted through a diameter adjusting bolt 6. The second layer of cutter body 10 is connected with two boring cutter sliders 2 and a boring cutter holder 3 at two sides in the same way, and forms an included angle of-45 degrees with the first layer of cutter body 1 at the same time, and is used for processing a second layer of large-diameter inner holes. The third layer of cutter body 11 is fixedly connected with the second layer of cutter body 10 through a cutter body bolt 12, two boring cutter holders 3 are connected to two symmetrical sides of the third layer of cutter body 11, and an included angle of 45 degrees is formed between the third layer of cutter body and the first layer of cutter body 1, so that the third layer of cutter body is used for machining a large-diameter inner hole of the third layer.
The utility model is used for processing the major diameter boring cutter of three-layer ladder hole for the processing of derailleur case protecgulum ladder hole, to ladder hole processing, cutting edge line contained angle between its first layer cutter body 1 and second floor cutter body 10 and the third layer cutter body 11 is 45 and-45 respectively to all be evenly distributed in cutter symmetry both sides, reduced the cutter body vibration, guaranteed the stability that the boring cutter sword carried. The boring tool slide block 2 connected with two symmetrical sides of the cutter body is provided with a sliding groove, the boring tool slide block 2 can axially slide through two slide block bolts 4 and is used for adjusting the axial distance size, a sliding key is arranged on the boring tool holder 3 and matched with the sliding groove of the boring tool slide block 2, and the axial machining size precision is adjusted through a diameter adjusting bolt 6. The third layer of cutter body 11 is a disc-type cutter body, sliding grooves are formed in the two symmetrical sides of the third layer of cutter body, the third layer of cutter body is matched with a sliding key on the boring cutter holder 3 to carry out radial size adjustment, meanwhile, the third layer of cutter body 11 is a thin disc-type cutter body, most radial force centers of the cutter in a rotating state are offset, the deformation of the cutter body is reduced, and the stable structure of the whole cutter is guaranteed.
As shown in fig. 1, the present embodiment uses two layers of sleeve type cutter body and one layer of disc type cutter body connected together, and the processing and using method is as follows:
step one, the boring cutter seats 3 on two sides of the third layer cutter body 11 are adjusted to the processing size of the inner hole of the third layer through diameter adjusting bolts 6, and then the seat bolts 5 are locked to fix the size.
And step two, adjusting the axial distance between the boring cutter seats 3 on the two sides of the second layer cutter body (10) and the boring cutter seats 3 on the third layer cutter body 11 through the slider bolts 4 to ensure the depth size of the second layer inner hole and the third layer inner hole, adjusting the boring cutter seats 3 on the two sides of the second layer cutter body 10 to the diameter processing size of the second layer inner hole through the diameter adjusting bolts 6, and locking the cutter seat bolts 5 to fix the size.
And step three, roughly adjusting the axial distance between the second layer cutter body 10 and the first layer cutter body 1, and then fixing the connecting bolt 7 and the connecting washer 8.
And step four, adjusting the axial distance between the boring cutter seats 3 on the two sides of the first layer cutter body (1) and the boring cutter seats 3 on the second layer cutter body 10 through the slide block bolts 4 to ensure the depth size of the first layer inner hole and the second layer inner hole, adjusting the boring cutter seats 3 on the two sides of the first layer cutter body 1 to the processing size of the first layer inner hole through the diameter adjusting bolts 6, and locking the cutter seat bolts 5 to fix the size.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that modifications and variations can be made without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a three-layer ladder major diameter boring cutter for processing derailleur case front shell which characterized in that: the boring cutter mainly comprises a first layer of cutter bodies (1), a boring cutter sliding block (2), a boring cutter holder (3), a sliding block bolt (4), a cutter holder bolt (5), a diameter adjusting bolt (6), a second layer of cutter bodies (10), a third layer of cutter bodies (11) and cutter body bolts (12);
the first layer of cutter bodies (1) are used for machining a first layer of large-diameter inner hole, two symmetrical sides of each cutter body are connected with two boring cutter sliding blocks (2), and each boring cutter sliding block (2) can axially slide through two sliding block bolts (4) and is used for adjusting the axial distance; the boring tool apron (3) is connected with the boring tool sliding block (2) through an apron bolt (5), two sliding key grooves are formed in the boring tool sliding block (2) and are in radial sliding fit with the boring tool apron (3), and axial machining size precision can be adjusted through a diameter adjusting bolt (6);
two sides of the second layer of cutter body (10) are also connected with two boring cutter sliding blocks (2) and a boring cutter holder (3) in the same way, and form an included angle of-45 degrees with the first layer of cutter body (1) at the same time, and the included angle is used for machining a second layer of large-diameter inner holes;
the third layer of cutter body (11) is fixedly connected with the second layer of cutter body (10) through a cutter body bolt (12), two boring cutter holders (3) are connected to two symmetrical sides of the third layer of cutter body (11), and an included angle of 45 degrees is formed between the third layer of cutter body and the first layer of cutter body (1) and used for machining a large-diameter inner hole of the third layer.
2. The three-layer stepped large-diameter boring tool for machining the front shell of the transmission case as claimed in claim 1, wherein: the cutter is characterized by further comprising a connecting bolt (7) and a connecting washer (8) which are arranged between the second layer of cutter body (10) and the first layer of cutter body (1).
3. The three-layer stepped large-diameter boring tool for machining the front shell of the transmission case as claimed in claim 1, wherein: the angle between the connecting lines of the cutting edges between the first layer of cutter body (1) and the second layer of cutter body (10) and the third layer of cutter body (11) is 45 degrees and-45 degrees respectively, and the angles are uniformly distributed on two symmetrical sides of the cutter; sliding grooves are formed in the boring cutter sliding blocks (2) connected to two symmetrical sides of the cutter body, the boring cutter sliding blocks can axially slide through two sliding block bolts (4) and are used for adjusting the size of the axial distance, sliding keys are arranged on the boring cutter holder (3) and matched with the sliding grooves of the boring cutter sliding blocks (2), and the axial machining size precision is adjusted through diameter adjusting bolts (6); the third layer of cutter body (11) is symmetrically provided with sliding grooves at two sides, and the sliding grooves are matched with sliding keys on the boring cutter holder (3) to adjust the radial size.
4. The three-layer stepped large-diameter boring tool for machining a front shell of a transmission case as claimed in claim 3, wherein: the third layer of cutter body (11) is a thin disc type cutter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985164.2U CN210817498U (en) | 2019-06-27 | 2019-06-27 | Three-layer stepped large-diameter boring cutter for machining front shell of transmission case |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985164.2U CN210817498U (en) | 2019-06-27 | 2019-06-27 | Three-layer stepped large-diameter boring cutter for machining front shell of transmission case |
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| CN210817498U true CN210817498U (en) | 2020-06-23 |
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| CN201920985164.2U Active CN210817498U (en) | 2019-06-27 | 2019-06-27 | Three-layer stepped large-diameter boring cutter for machining front shell of transmission case |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996829A (en) * | 2021-11-18 | 2022-02-01 | 陕西柴油机重工有限公司 | Large-aperture machining method for diesel engine cylinder cover with multiple straight holes and conical holes |
| CN114406308A (en) * | 2021-12-30 | 2022-04-29 | 杭州九龙机械制造有限公司 | Flywheel shell, flywheel shell machining method and boring cutter |
| CN116037975A (en) * | 2022-09-08 | 2023-05-02 | 松德刀具（长兴）科技有限公司 | High-precision double-blade bridge type superhard boring cutter |
-
2019
- 2019-06-27 CN CN201920985164.2U patent/CN210817498U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996829A (en) * | 2021-11-18 | 2022-02-01 | 陕西柴油机重工有限公司 | Large-aperture machining method for diesel engine cylinder cover with multiple straight holes and conical holes |
| CN114406308A (en) * | 2021-12-30 | 2022-04-29 | 杭州九龙机械制造有限公司 | Flywheel shell, flywheel shell machining method and boring cutter |
| CN116037975A (en) * | 2022-09-08 | 2023-05-02 | 松德刀具（长兴）科技有限公司 | High-precision double-blade bridge type superhard boring cutter |
| CN116037975B (en) * | 2022-09-08 | 2023-08-11 | 松德刀具（长兴）科技有限公司 | High-precision double-blade bridge type superhard boring cutter |
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