CN203804635U - Quick-changing connecting device of milling cutter and main boring machine shaft for common boring machine - Google Patents
Quick-changing connecting device of milling cutter and main boring machine shaft for common boring machine Download PDFInfo
- Publication number
- CN203804635U CN203804635U CN201420208417.2U CN201420208417U CN203804635U CN 203804635 U CN203804635 U CN 203804635U CN 201420208417 U CN201420208417 U CN 201420208417U CN 203804635 U CN203804635 U CN 203804635U
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- Prior art keywords
- connecting portion
- quick change
- milling cutter
- boring machine
- connection device
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- Expired - Lifetime
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- 238000003801 milling Methods 0.000 title claims abstract description 40
- 230000008859 change Effects 0.000 claims description 64
- 238000000465 moulding Methods 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model discloses a quick-changing connecting device of a milling cutter and a main boring machine shaft for a common boring machine. The quick-changing connecting device comprises a taper shank connection base and a cutter quick-changing sleeve. The taper shank connection base comprises a first connection portion and a second connection portion connected to the inner side surface of the first connection portion. The first connection portion is provided with a first inner taper hole for a taper shank of the cutter quick-changing sleeve to extend into, and the taper shank and the first inner taper hole are in cone cooperation. The second connection portion extends into a second inner taper hole of the main boring machine shaft and is in cone cooperation with the second inner taper hole. According to quick-changing connecting device, radial moment generated in the milling process of a cutter is avoided through cone cooperation, and the cutter falling problem or the breaking edge problem of work-pieces is prevented.
Description
Technical field
The utility model relates to common boring machine technical field, particularly relates to the quick change connection device of a kind of common boring machine milling cutter and boring spindle.
Background technology
Use common boring machine to carry out in machining, need use wedge to insert strip hole on main shaft while changing cutter, by knocking taper tool shanks root homalocephalus, the cutter conical surface and the main shaft conical surface are thrown off, changing cutter process wastes time and energy, operation inconvenience.Especially when clamping milling cutter on common boring machine adds man-hour, be subject to the moment loading that curves of radial cutting force generation, milling cutter taper shank very easily comes off from main shaft taper shank, causes the serious problems such as cutter or workpiece knife.
As shown in Figure 1, when clamping milling cutter on common boring machine adds man-hour, if milling cutter 1 is arranged on knife quick change cover 2, knife quick change cover 2 is arranged on boring spindle 3, in use, can be because milling cutter 1 is subject to cutting force F upwards, thereby make milling cutter 1 and knife quick change cover 2 be subject to curving moment M, due to the clearance delta d between knife quick change cover 2 and boring spindle 3, thereby make milling cutter 1 and knife quick change cover 2, in above-mentioned clearance delta d, radial-play occur, milling cutter 1 very easily comes off from boring spindle 3, cause the serious problems such as cutter or workpiece knife, thereby cannot ensure that milling cutter 1 effectively normally works.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and the quick change connection device of a kind of common boring machine milling cutter and boring spindle is provided.The radially moment that this quick change connection device produces while overcoming Tool in Milling by cone match, prevents that cutter or workpiece knife problem from occurring.
For achieving the above object, the technical solution adopted in the utility model is: the quick change connection device of milling cutter and boring spindle for common boring machine, is characterized in that: comprise taper shank Connection Block and knife quick change cover; Described taper shank Connection Block comprises the first connecting portion and is connected to the second connecting portion on the first connecting portion medial surface, on described the first connecting portion, offer the first internal taper hole stretching into for the taper shank of knife quick change cover, and described taper shank and the first internal taper hole are cone match, described the second connecting portion stretches into the second internal taper hole of boring spindle, and described the second connecting portion and the second internal taper hole are cone match.
The quick change connection device of milling cutter and boring spindle for above-mentioned common boring machine, is characterized in that: the core of described the second connecting portion offers axially extending bore, is provided with the stretching screw for connecting the second connecting portion and knife quick change cover in described axially extending bore.
The quick change connection device of milling cutter and boring spindle for above-mentioned common boring machine, it is characterized in that: described the first connecting portion offers two the first keyways on the side away from the second connecting portion, in two described the first keyways, be all provided with for stretching into knife quick change and put the positioning key in the second keyway, described knife quick change puts to be provided with and overlaps the attachment screw being connected with the first connecting portion through described positioning key and by knife quick change.
The quick change connection device of milling cutter and boring spindle for above-mentioned common boring machine, is characterized in that: comprise the collar being enclosed within on boring spindle, on described the first connecting portion, be provided with outer edge, the described collar is connected by multiple pull bars with outer edge.
The quick change connection device of milling cutter and boring spindle for above-mentioned common boring machine, is characterized in that: in the cutter slotted eye of described boring spindle, flat strut is installed, the collar is all stretched at the two ends of described flat strut.
The quick change connection device of milling cutter and boring spindle for above-mentioned common boring machine, is characterized in that: on the two sides of the described collar and the position corresponding with flat strut is provided with projecting block, offers the connecting hole passing for described flat strut on described projecting block.
The quick change connection device of milling cutter and boring spindle for above-mentioned common boring machine, is characterized in that: the lock-screw for locating flat strut is installed on described projecting block.
The quick change connection device of milling cutter and boring spindle for above-mentioned common boring machine, is characterized in that: described the first connecting portion, the second connecting portion and outer edge are integrally formed molding structure.
The utility model compared with prior art has the following advantages:
1, of the present utility model simple in structure, rationally novel in design.
The cone match of the second internal taper hole of the taper shank that 2, the utility model overlaps by knife quick change and the cone match of the first internal taper hole and the second connecting portion and boring spindle, carry out carry-over moment by milling cutter by above-mentioned two cone match, the radially moment producing while overcoming Tool in Milling by the conical surface pretightning force of above-mentioned two cone match, prevent that cutter or workpiece knife problem from occurring, also ensure in addition quick-replaceable function, also ensured the steadiness connecting simultaneously.
3, the utility model, by pull bar and the collar are set, has further ensured the stable connection of taper shank Connection Block and boring spindle.
4, the utility model, by stretching screw is set, can be strained knife quick change cover, makes knife quick change cover and the first internal taper hole pretension, has improved the connectivity robustness of knife quick change cover with taper shank Connection Block.
5, the utility model, by dismounting attachment screw, can complete the replacing to positioning key, very easy to use.
6, of the present utility model to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, and rationally novel in design, functional reliability is high, long service life, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of quick change connection device in prior art.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation of the utility model taper shank Connection Block.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the annexation schematic diagram of the utility model collar and boring spindle.
Fig. 6 is the left view of Fig. 5.
Description of reference numerals:
1-milling cutter; 2-knife quick change cover; 2-1-taper shank;
3-boring spindle; 3-1-the second internal taper hole; 4-flat strut;
5-positioning key; 6-attachment screw; 7-taper shank Connection Block;
7-1-the first connecting portion; 7-2-the second connecting portion; 7-3-the first internal taper hole;
7-4-outer edge; 7-5-axially extending bore; 7-6-the first pull bar connecting hole;
7-7-the first keyway; 7-8-screwed hole; 8-locking nut;
9-pull bar; 10-pad; 11-stretching screw;
12-collar; 12-1-projecting block; 12-2-the second pull bar connecting hole;
13-lock-screw.
Detailed description of the invention
The quick change connection device of milling cutter and boring spindle for a kind of common boring machine as shown in Figures 2 and 3, comprises taper shank Connection Block 7 and knife quick change cover 2; Described taper shank Connection Block 7 comprises the first connecting portion 7-1 and is connected to the second connecting portion 7-2 on the first connecting portion 7-1 medial surface, on described the first connecting portion 7-1, offer the first internal taper hole 7-3 stretching into for the taper shank 2-1 of knife quick change cover 2, and described taper shank 2-1 and the first internal taper hole 7-3 are cone match, described the second connecting portion 7-2 stretches into the second internal taper hole 3-1 of boring spindle 3, and described the second connecting portion 7-2 and the second internal taper hole 3-1 are cone match.In the present embodiment, described knife quick change cover 2 adopts the Quick changing milling clamp head that model is JXT25-50.
In conjunction with Fig. 2 and Fig. 3, the core of described the second connecting portion 7-2 offers axially extending bore 7-5, is provided with the stretching screw 11 for connecting the second connecting portion 7-2 and knife quick change cover 2 in described axially extending bore 7-5.
In conjunction with Fig. 2 and Fig. 3, described the first connecting portion 7-1 offers two the first keyway 7-7 on the side away from the second connecting portion 7-2, in two described the first keyway 7-7, be all provided with for stretching into the positioning key 5 in the second keyway on knife quick change cover 2, on described knife quick change cover 2, be provided with through described positioning key 5 and by knife quick change cover 2 attachment screws 6 that are connected with the first connecting portion 7-1.
In conjunction with Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, this common boring machine comprises the collar 12 being enclosed within on boring spindle 3 with the quick change connection device of milling cutter and boring spindle, on described the first connecting portion 7-1, be provided with outer edge 7-4, the described collar 12 is connected by multiple pull bars 9 with outer edge 7-4.Preferred way is that described the first connecting portion 7-1, the second connecting portion 7-2 and outer edge 7-4 are integrally formed molding structure.In addition, described outer edge 7-4 is upper and be provided with multiple the first pull bar connecting hole 7-6 along the circumferencial direction of the first connecting portion 7-1 is spaced apart.On the described collar 12 and along its circumferencial direction, offer the second pull bar connecting hole 12-2 that lay at multiple intervals.
As shown in Figure 5 and Figure 6, flat strut 4 is installed in the cutter slotted eye of described boring spindle 3, the collar 12 is all stretched at the two ends of described flat strut 4.On the two sides of the described the collar 12 and position corresponding with flat strut 4 is provided with projecting block 12-1, offers the connecting hole passing for described flat strut 4 on described projecting block 12-1.Lock-screw 13 for locating flat strut 4 is installed on described projecting block 12-1.
In conjunction with Fig. 2～Fig. 6, in the time of concrete use, first the collar 12 is enclosed within on boring spindle 3, and by flat strut 4, the collar 12 is positioned on boring spindle 3, and make lock-screw 13 penetrate projecting block 12-1 flat strut 4 is held out against.In the axially extending bore 7-5 of the second connecting portion 7-2, pack stretching screw 11 into again, can between the head of stretching screw 11 and the end face of the second connecting portion 7-2, pad 10 be installed, then the second connecting portion 7-2 is stretched in the second internal taper hole 3-1 of boring spindle 3, by the conical surface pretightning force of the second connecting portion 7-2 and the second internal taper hole 3-1, thereby taper shank Connection Block 7 and boring spindle 3 are firmly linked together.Next, knife quick change cover 2 is arranged on the first connecting portion 7-1, the taper shank 2-1 that is knife quick change cover 2 stretches in the first internal taper hole 7-3 of the first connecting portion 7-1, and strain knife quick change cover 2 by stretching screw 11, make knife quick change cover 2 and the first internal taper hole 7-3 pretension, then use pull bar 9 through the first pull bar connecting hole 7-6 on the 7-4 of outer edge and the second pull bar connecting hole 12-2 on the collar 12, thereby taper shank Connection Block 7 and the collar 12 are strained, and at the two ends of pull bar 9 cover upper locking nut 8.The last attachment screw 6 that makes again passes successively knife quick change cover 2 and positioning key 5 and extend in the screwed hole 7-8 on the first connecting portion 7-1.
In the present embodiment, overlap 2 taper shank 2-1 and the cone match of the cone match of the first internal taper hole 7-3 and the second internal taper hole 3-1 of the second connecting portion 7-2 and boring spindle 3 by knife quick change, carry out carry-over moment by milling cutter 1 by above-mentioned two cone match, the radially moment producing while overcoming Tool in Milling by the conical surface pretightning force of above-mentioned two cone match, prevent that cutter or workpiece knife problem from occurring, also ensure in addition quick-replaceable function, also ensured the steadiness connecting simultaneously.In addition, by pull bar 9 and the collar 12 are set, further ensured the stable connection of taper shank Connection Block 7 with boring spindle 3.By stretching screw 11 is set, can strain knife quick change cover 2, make knife quick change cover 2 and the first internal taper hole 7-3 pretension, improve the connectivity robustness of knife quick change cover 2 with taper shank Connection Block 7.Overlap 2 taper shank 2-1 by knife quick change and be connected with the cone match of the first internal taper hole 7-3 of the first connecting portion 7-1, knife quick change can be overlapped to 2 and firmly be connected on the first connecting portion 7-1.In addition, in use, positioning key 5 is easy to wearing and tearing, by dismounting attachment screw 6, can complete the replacing to positioning key 5, very easy to use.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.
Claims (8)
1. the quick change connection device of milling cutter and boring spindle for common boring machine, is characterized in that: comprise taper shank Connection Block (7) and knife quick change cover (2), described taper shank Connection Block (7) comprises the first connecting portion (7-1) and is connected to the second connecting portion (7-2) on the first connecting portion (7-1) medial surface, on described the first connecting portion (7-1), offer the first internal taper hole (7-3) stretching into for the taper shank (2-1) of knife quick change cover (2), and described taper shank (2-1) is cone match with the first internal taper hole (7-3), described the second connecting portion (7-2) stretches into second internal taper hole (3-1) of boring spindle (3), and described the second connecting portion (7-2) is cone match with the second internal taper hole (3-1).
2. the quick change connection device of milling cutter and boring spindle for common boring machine according to claim 1, it is characterized in that: the core of described the second connecting portion (7-2) offers axially extending bore (7-5), in described axially extending bore (7-5), be provided with the stretching screw (11) for connecting the second connecting portion (7-2) and knife quick change cover (2).
3. the quick change connection device of milling cutter and boring spindle for common boring machine according to claim 1, it is characterized in that: described the first connecting portion (7-1) offers two the first keyways (7-7) on the side away from the second connecting portion (7-2), in two described the first keyways (7-7), be all provided with for stretching into the positioning key (5) in upper the second keyway of knife quick change cover (2), the attachment screw (6) being connected with the first connecting portion (7-1) through described positioning key (5) and by knife quick change cover (2) is installed on described knife quick change cover (2).
4. the quick change connection device of milling cutter and boring spindle for common boring machine according to claim 1, it is characterized in that: comprise the collar (12) being enclosed within on boring spindle (3), on described the first connecting portion (7-1), be provided with outer edge (7-4), the described collar (12) is connected by multiple pull bars (9) with outer edge (7-4).
5. the quick change connection device of milling cutter and boring spindle for common boring machine according to claim 4, it is characterized in that: flat strut (4) is installed in the cutter slotted eye of described boring spindle (3), and the collar (12) is all stretched at the two ends of described flat strut (4).
6. the quick change connection device of milling cutter and boring spindle for common boring machine according to claim 5, it is characterized in that: on the two sides of the described collar (12) and the position corresponding with flat strut (4) is provided with projecting block (12-1), on described projecting block (12-1), offer the connecting hole passing for described flat strut (4).
7. the quick change connection device of milling cutter and boring spindle for common boring machine according to claim 6, is characterized in that: the lock-screw (13) for locating flat strut (4) is installed on described projecting block (12-1).
8. the quick change connection device of milling cutter and boring spindle for common boring machine according to claim 4, is characterized in that: described the first connecting portion (7-1), the second connecting portion (7-2) and outer edge (7-4) are integrally formed molding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208417.2U CN203804635U (en) | 2014-04-26 | 2014-04-26 | Quick-changing connecting device of milling cutter and main boring machine shaft for common boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208417.2U CN203804635U (en) | 2014-04-26 | 2014-04-26 | Quick-changing connecting device of milling cutter and main boring machine shaft for common boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203804635U true CN203804635U (en) | 2014-09-03 |
Family
ID=51443444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420208417.2U Expired - Lifetime CN203804635U (en) | 2014-04-26 | 2014-04-26 | Quick-changing connecting device of milling cutter and main boring machine shaft for common boring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203804635U (en) |
-
2014
- 2014-04-26 CN CN201420208417.2U patent/CN203804635U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |