CN214721231U - Telescopic floating tapping cutter bar - Google Patents
Telescopic floating tapping cutter bar Download PDFInfo
- Publication number
- CN214721231U CN214721231U CN202120956148.8U CN202120956148U CN214721231U CN 214721231 U CN214721231 U CN 214721231U CN 202120956148 U CN202120956148 U CN 202120956148U CN 214721231 U CN214721231 U CN 214721231U
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- spring
- hole
- bar
- telescopic
- sleeve
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- Expired - Fee Related
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims description 38
- 239000010959 steel Substances 0.000 claims description 38
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a telescopic floating tapping cutter bar, which comprises a cutter bar main body, an elastic collet chuck and a locking nut; the knife bar body comprises a bar sleeve, a telescopic pipe and a cylinder chuck, and the cylinder chuck comprises a conical groove; the elastic collet chuck is arranged in the conical groove of the collet chuck and comprises a retractable clamping hole; the locking nut can press against the elastic collet chuck and promote the shrinkage of the clamping hole; the utility model discloses the tooth sword is attacked in the clamp system hole that can contract in the application elastic collet chuck comes the clamp system, can press from both sides the tooth sword of attacking of different specifications of system in certain size range, borrow this and avoid current attack the tooth cutter arbor and use the attack tooth sword of a plurality of quick detach chucks to clamp the different specifications respectively, lead to the mill to attack the too high problem of tooth cost, provide can save the expense of purchasing a plurality of quick detach chucks, reduce the flexible unsteady tooth cutter arbor of attacking of the cost of attacking tooth.
Description
Technical Field
The utility model relates to a attack tooth cutter arbor, especially indicate a be equipped with the elastic collet chuck come the different specifications of clamping system attack the tooth sword, and can save the expense of purchasing a plurality of quick detach chucks, reduce the flexible unsteady cutter arbor of attacking of the cost of attacking the tooth.
Background
The cutter bar is a common element in a tool machine in a factory and is used for connecting a main shaft of the tool machine and a cutter required to be used for machining, wherein one common machining cutter is a tapping cutter used for tapping, and the cutter used in cooperation with the tapping cutter is commonly called as a tapping cutter bar; a tapping tool holder generally includes a tool holder body and a chuck disposed on the tool holder body for clamping a tapping tool.
The conventional common tapping cutter bar generally comprises a quick-release chuck, wherein a tapping cutter is correspondingly clamped by the quick-release chuck; a tapping operator often purchases a plurality of quick-release chucks to respectively clamp tapping knives of different specifications, and the cost of tapping in a factory is too high due to the purchase of the quick-release chucks along with the number of the tapping knives of different specifications.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the conventional tapping cutter bar has high tapping cost in factories due to the fact that a plurality of quick-release chucks are purchased by manufacturers to clamp tapping cutters with different specifications respectively, the utility model provides a telescopic floating tapping cutter bar, which utilizes a telescopic clamping hole in an elastic collet chuck to clamp the tapping cutter; the utility model discloses borrow this can utilize an elastic collet chuck to come the tapping sword of the different specifications of clamp system, can avoid current tapping cutter arbor to use the tapping sword of a plurality of quick detach chucks to clamp the different specifications of system respectively, lead to the mill to attack the too high problem of cost of tooth, provide can save the expense of purchasing a plurality of quick detach chucks, reduce a flexible unsteady tapping cutter arbor of the cost of attacking tooth.
The utility model provides a flexible unsteady cutter arbor of attacking that technical problem provided, it includes:
a cutter bar main body which is long and comprises a central shaft; the knife bar body also comprises a bar sleeve, an extension tube and a collet; the rod sleeve is tubular and comprises two opposite ends, the telescopic pipe is inserted into the rod sleeve from one end of the rod sleeve, the telescopic pipe and the rod sleeve can move relatively along the central shaft, so that the cutter bar main body can be telescopic along the central shaft, the cartridge chuck is arranged at the other end of the rod sleeve and can float relative to the rod sleeve, and the cartridge chuck comprises a tapered groove arranged along the central shaft;
the elastic collet chuck comprises a conical section inserted in the conical groove of the collet chuck, a clamping end protruding out of the conical groove, a clamping hole penetrating along the central shaft, and a plurality of contraction grooves arranged along the clamping hole and surrounding the clamping hole; the clamping hole of the elastic collet chuck can contract to clamp a tapping knife; and
a lock nut coupled to the cartridge holder and fixing the elastic collet to the cartridge holder; the locking nut comprises a tapered hole, the clamping end of the elastic collet chuck is sleeved with the locking nut through the tapered hole, and the locking nut presses against the elastic collet chuck through the tapered hole and enables the clamping hole of the elastic collet chuck to shrink.
The telescopic floating tapping cutter bar comprises a first spring, the rod sleeve comprises a spacing block fixedly arranged in the rod sleeve, the telescopic pipe comprises a tubular groove concavely arranged along the central shaft and a spring abutting piece, and the spring abutting piece can be movably arranged in the tubular groove and can abut against the bottom of the tubular groove; the first spring is a compression spring, and two ends of the first spring respectively support against the spring supporting piece and the spacing block of the rod sleeve.
The telescopic floating tapping cutter bar comprises a tooth bar, and the spring abutting piece comprises a tooth bar hole which penetrates through the central shaft and a limiting part which is radially and convexly arranged towards the inside of the tooth bar hole; the tooth rod penetrates through the tooth rod hole and comprises a combining end and an abutting end which are opposite in position, the tooth rod is combined with the spacing block of the rod sleeve through the combining end, and the abutting end is located in the tooth rod hole and can be stopped by the limiting part.
The telescopic floating tapping knife rod is characterized in that the telescopic pipe comprises a second spring and a spring pressing sleeve arranged in a tubular groove of the telescopic pipe; the second spring is a compression spring, and two ends of the second spring respectively support against the spring supporting piece and the spring pressing sleeve.
The telescopic floating tapping cutter bar is characterized in that the rod sleeve comprises a return spring and a floating steel ball; the cylinder chuck comprises a conical steel ball groove, the spacing block of the rod sleeve comprises a through hole which penetrates through the central shaft, the combining end of the tooth rod penetrates through the through hole, the reset spring is arranged in the through hole, the two ends of the reset spring respectively support against the combining end of the tooth rod and the floating steel ball, and the floating steel ball supports against the steel ball groove of the cylinder chuck.
The telescopic floating tapping cutter bar is characterized in that the telescopic pipe comprises three limiting steel balls and three steel ball containing grooves for containing the three limiting steel balls respectively, the three steel ball containing grooves surround the central shaft, each steel ball containing groove is parallel to the central shaft and is long, the rod sleeve comprises three limiting holes penetrating through the pipe wall of the rod sleeve, the three limiting holes surround the central shaft, each limiting hole is parallel to the central shaft and is long, and the three steel ball containing grooves are communicated with the three limiting holes respectively; the three limiting steel balls can move in the three steel ball containing grooves respectively, and the moving range is limited by the three long limiting holes respectively.
The telescopic floating tapping cutter bar comprises an outer collar which is arranged outside the rod sleeve in a surrounding manner and covers three limiting holes of the rod sleeve.
The utility model discloses an efficiency that technical means can obtain is promoted and is lain in: the utility model discloses an elastic collet chuck, application can contract press from both sides the system hole and press from both sides the system and attack the dental cutter, let an elastic collet chuck can press from both sides the attack dental cutter of different specifications in certain size range, the utility model discloses can borrow this and can sparingly purchase the cost that a plurality of quick detach chucks, reduction attacked the tooth.
Drawings
Fig. 1 is a perspective view of the preferred embodiment of the present invention.
Fig. 2 is an exploded view of a portion of the components of the preferred embodiment of the present invention.
Fig. 3 is an exploded view of the components of the preferred embodiment of the present invention.
Fig. 4 is a side sectional view of the preferred embodiment of the present invention.
Fig. 5 is a side view of the operation of the preferred embodiment of the present invention.
Fig. 6 is another side view of the preferred embodiment of the present invention.
Fig. 7 is a side view of a partially enlarged view of a preferred embodiment of the invention.
Fig. 8 is a schematic view of the use of the elastic collet of the preferred embodiment of the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be made in conjunction with the drawings and the accompanying drawings to further illustrate the technical means adopted to achieve the objects of the present invention.
As shown in fig. 1 to 3, the telescopic floating tapping tool bar according to the preferred embodiment of the present invention comprises a tool bar body, which is long and comprises a central shaft D1 (fig. 4) along the tool bar body, a bar sleeve 10, a telescopic tube 20 and a collet 30; the telescopic floating tapping tool further comprises a resilient collet 40, a lock nut 50, a threaded rod 60, a first spring 70, and an outer collar 80.
As shown in fig. 3, 4 and 7, the rod sleeve 10 is tubular and includes two opposite ends, the rod sleeve 10 further includes a spacer 11, a return spring 12, a floating steel ball 13, a floating element set 14, a limiting cap 15, and three limiting holes 16 penetrating through the wall of the rod sleeve 10; the spacing block 11 is fixedly arranged inside the rod sleeve 10, the spacing block 11 comprises a through hole 111 penetrating along the central axis D1, the return spring 12 is arranged in the through hole 111 of the spacing block 11, the floating steel ball 13 penetrates the through hole 111, the floating element group 14 can be movably arranged inside the rod sleeve 10, the limiting cover 15 is screwed with the pipe wall of the rod sleeve 10, and the floating element group 14 is limited inside the rod sleeve 10; the restraining cap 15 includes a receptacle 151 disposed along the central axis D1; the three limiting holes 16 surround the central axis D1, and each limiting hole 16 is parallel to the central axis D1 and is long.
As shown in fig. 3 and 4, the extension tube 20 is inserted into the rod cover 10 from one end of the rod cover 10, and the extension tube 20 is used for connecting with a main shaft of a machine tool; the telescopic tube 20 comprises a tubular groove 21 concavely arranged along the central axis D1, a spring abutting piece 22, a spring pressing sleeve 23 fixedly arranged in the tubular groove 21, a second spring 24, three limiting steel balls 25 and three steel ball accommodating grooves 26 for accommodating the three limiting steel balls 25 respectively; the spring support member 22 can be movably disposed in the tubular groove 21 and can support against the bottom of the tubular groove 21, the spring support member 22 includes two opposite ends, a threaded rod hole 221 penetrating along the central axis D1, and a stop portion 222 protruding radially toward the inside of the threaded rod hole 221, and the stop portion 222 is located at one end of the threaded rod hole 221 close to the spacer 11 between the rod sleeves 10; the second spring 24 is a compression spring, and two ends of the second spring 24 respectively abut against the spring abutting member 22 and the spring pressing sleeve 23; the three ball containing grooves 26 surround the central axis D1, each ball containing groove 26 is parallel to the central axis D1 and is long, the three ball containing grooves 26 are respectively communicated with the three limiting holes 16 of the rod sleeve 10, the three limiting balls 25 can respectively move in the three ball containing grooves 26, and the moving range is respectively limited by the three limiting holes 16.
As shown in fig. 4 and 7, the cartridge holder 30 is inserted into one end of the rod cover 10 through the insertion hole 151 of the stop cap 15, and the cartridge holder 30 is screwed with the floating component set 14 of the rod cover 10, and the cartridge holder 30 includes a tapered groove 31 along the central axis D1 and a tapered steel ball groove 32.
As shown in fig. 4 and 7, the collet 40 is formed of a conventional collet: ER collet as representative; the elastic collet 40 includes a tapered section inserted into the tapered groove 31 of the collet 30, a clamping end protruding out of the tapered groove 31, a clamping hole 41 (fig. 3) formed through the central axis D1, and a plurality of contraction grooves formed along the clamping hole 41; the plurality of contraction grooves surround the clamping hole 41 at equal intervals; the clamping hole 41 has a diameter capable of being contracted and is used for clamping a tapping knife 90.
As shown in fig. 7, the lock nut 50 is threaded with the cartridge holder 30 and secures the resilient collet 40 to the cartridge holder 30; the lock nut 50 includes a tapered hole 51, and the lock nut 50 is sleeved on the clamping end of the elastic collet 40 through the tapered hole 51, so that the lock nut 50 presses against the clamping end of the elastic collet 40 and causes the clamping hole 41 of the elastic collet 40 to contract.
As shown in fig. 4, the tooth bar 60 is inserted through the tooth bar hole 221 of the spring abutting element 22, the tooth bar 60 includes a coupling end 61 and an abutting end 62 which are opposite to each other, the tooth bar 60 is inserted through the through hole 111 of the spacer 11 of the rod sleeve 10 with the coupling end 61 and is screwed with the through hole 111, and the tooth bar 60 is thereby combined with the spacer 11 of the rod sleeve 10 with the coupling end 61; two ends of the return spring 12 of the rod sleeve 10 respectively abut against the combining end 61 of the tooth rod 60 and the floating steel ball 13 of the rod sleeve 10, and the floating steel ball 13 abuts against the steel ball groove 32 of the cartridge chuck 30; the abutting end 62 of the threaded rod 60 is located inside the threaded rod hole 221 of the spring abutting element 22 and can be stopped by the stopping portion 222.
As shown in fig. 3 and 4, the first spring 70 is a compression spring, and the inner diameter of the second spring 24 of the telescopic tube 20 is larger than the outer diameter of the first spring 70; the two ends of the first spring 70 respectively abut against the spacing block 11 of the rod sleeve 10 and the spring abutting member 22 of the telescopic tube 20.
As shown in fig. 1 and 4, the outer sleeve 80 is disposed around the wall of the rod sleeve 10 and covers the three position-limiting holes 16 of the rod sleeve 10, so as to prevent the three position-limiting balls 25 of the telescopic tube 20 from falling out of the three ball-receiving grooves 26.
As shown in fig. 5 and 6, the telescopic floating tapping knife bar of the present invention, the telescopic tube 20 and the bar cover 10 can move relatively along the central axis D1, so that the knife bar body can be telescopic along the central axis D1, and the following description is provided to fix the telescopic tube 20 and move the bar cover 10: as shown in fig. 5, when a pulling force is applied to move the rod sleeve 10, so that the main body of the knife bar is stretched, the rod sleeve 10 drives the tooth bar 60 to move along the central axis D1 due to the connection between the connection end 61 of the tooth bar 60 and the spacer 11 of the rod sleeve 10, and the abutting end 62 of the tooth bar 60 is located inside the tooth bar hole 221 of the spring abutting member 22 and can be stopped by the stopper 222, so that the spring abutting member 22 is driven to move along the central axis D1, and meanwhile, the spring pressing sleeve 23 fixed in the tubular groove 21 of the telescopic tube 20 is fixed, so that the second spring 24 with two ends abutting against the spring abutting member 22 and the spring pressing sleeve 23 respectively is compressed and deformed, and when the applied pulling force disappears, the rod sleeve 10 returns to its original position due to the elasticity of the second spring 24.
As shown in fig. 6, when a pressure is applied to move the rod sleeve 10 to contract the main body of the knife bar, the spacer 11 between the rod sleeves 10 moves along the central axis D1 along with the movement of the rod sleeve 10, and when the spring abutting member 22 abuts against the bottom of the tubular groove 21 of the telescopic tube 20, the spring abutting member 22 is fixed, since one end of the first spring 70 abuts against the spacer 11 and the other end of the first spring 70 abuts against the spring abutting member 22, the first spring 70 is compressed and deformed due to the above-mentioned action relationship, and when the applied pressure disappears, the rod sleeve 10 returns to its original position due to the elasticity of the first spring 70.
As shown in fig. 7, the telescopic floating tapping knife bar of the present invention, the barrel chuck 30 is screwed with the floating element set 14 of the rod sleeve 10, when the barrel chuck 30 is acted by an external force, because the floating element set 14 can move in the rod sleeve 10, the barrel chuck 30 can move radially relative to the rod sleeve 10, and the return spring 12 and the floating steel ball 13 of the rod sleeve 10 are arranged, when the barrel chuck 30 moves, the floating steel ball 13 pressed against the steel ball groove 32 of the barrel chuck 30 by the return spring 12 will move along with the return spring 12, so as to deform the return spring 12, when the external force applied to the barrel chuck 30 disappears, the barrel chuck 30 will return to the original position due to the elasticity of the return spring 12, and by the arrangement, the barrel chuck 30 can float radially relative to the rod sleeve 10.
Other details of the telescopic floating tapping tool bar of the present invention are well known in the art and will not be further described herein.
The utility model discloses a flexible unsteady cutter arbor of attacking, this clamp system hole 41 that can contract in the application this elastic collet chuck 40 comes the clamp system to attack the broach 90, as shown in FIG. 8, in certain size range, can press from both sides different specifications attack broach 90A, 90B or 90C, can avoid current attack the broach and use the attack broach that a plurality of quick detach chucks pressed from both sides the different specifications respectively, lead to the mill to attack the problem that the cost of tooth is too high, the utility model discloses can save the expense of purchasing a plurality of quick detach chucks, reduce the cost of attacking the tooth.
The utility model discloses in, this flexible pipe 20 and this rod cover 10 can be along this center pin D1 relative activity, make this cutter arbor main part can stretch out and draw back along this center pin D1, in the process of attacking the tooth, no matter be the feed or move back the sword, can both utilize the characteristic that this cutter arbor main part can stretch out and draw back, provide the distance of buffering, prevent attack the broach 90 and damage, in addition, can also utilize at the platform attack the broach 90 and attacked the screw thread, when the main shaft reversal of platform moves back the sword, prevent attack the broach 90 and destroy the screw thread of attacking, promote the precision of attacking the tooth.
The utility model discloses in, this barrel head 30 can radially float relatively this rod cover 10, in the process of attacking tooth, can automatic correction attack the error of dental cutter 90 and machining center point, is attacking long screw hole, long thread to and the secondary is attacked the in-process of tooth and can be promoted the precision of processing by a wide margin.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with the preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the technical scope of the present invention, but all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (7)
1. A telescopic floating tapping cutter bar is characterized by comprising:
a cutter bar main body which is long and comprises a central shaft; the knife bar body also comprises a bar sleeve, an extension tube and a collet; the rod sleeve is tubular and comprises two opposite ends, the telescopic pipe is inserted into the rod sleeve from one end of the rod sleeve, the telescopic pipe and the rod sleeve can move relatively along the central shaft, so that the cutter bar main body can be telescopic along the central shaft, the cartridge chuck is arranged at the other end of the rod sleeve and can float relative to the rod sleeve, and the cartridge chuck comprises a tapered groove arranged along the central shaft;
the elastic collet chuck comprises a conical section inserted in the conical groove of the collet chuck, a clamping end protruding out of the conical groove, a clamping hole penetrating along the central shaft, and a plurality of contraction grooves arranged along the clamping hole and surrounding the clamping hole; the clamping hole of the elastic collet chuck can contract to clamp a tapping knife; and
a lock nut coupled to the cartridge holder and fixing the elastic collet to the cartridge holder; the locking nut comprises a tapered hole, the clamping end of the elastic collet chuck is sleeved with the locking nut through the tapered hole, and the locking nut presses against the elastic collet chuck through the tapered hole and enables the clamping hole of the elastic collet chuck to shrink.
2. The telescopic floating tapping knife bar of claim 1, comprising a first spring, wherein the bar sleeve comprises a spacer block fixedly arranged inside the bar sleeve, the telescopic tube comprises a tubular groove concavely arranged along the central axis, and a spring abutting member movably arranged in the tubular groove and abutting against the bottom of the tubular groove; the first spring is a compression spring, and two ends of the first spring respectively support against the spring supporting piece and the spacing block of the rod sleeve.
3. The telescopic floating tapping blade bar as claimed in claim 2, wherein said spring biasing member comprises a blade hole formed therethrough along said central axis, and a stopper portion projecting radially inwardly of said blade hole; the tooth rod penetrates through the tooth rod hole and comprises a combining end and an abutting end which are opposite in position, the tooth rod is combined with the spacing block of the rod sleeve through the combining end, and the abutting end is located in the tooth rod hole and can be stopped by the limiting part.
4. The telescopic floating tapping knife bar as claimed in claim 3, wherein the telescopic tube comprises a second spring and a spring pressing sleeve disposed in the tubular slot of the telescopic tube; the second spring is a compression spring, and two ends of the second spring respectively support against the spring supporting piece and the spring pressing sleeve.
5. The telescopic floating tapping knife bar as claimed in claim 4, wherein said bar sleeve comprises a return spring and a floating steel ball; the cylinder chuck comprises a conical steel ball groove, the spacing block of the rod sleeve comprises a through hole which penetrates through the central shaft, the combining end of the tooth rod penetrates through the through hole, the reset spring is arranged in the through hole, the two ends of the reset spring respectively support against the combining end of the tooth rod and the floating steel ball, and the floating steel ball supports against the steel ball groove of the cylinder chuck.
6. The telescopic floating tapping cutter bar as claimed in claim 5, wherein the telescopic tube comprises three limiting steel balls and three steel ball accommodating grooves for accommodating the three limiting steel balls respectively, the three steel ball accommodating grooves surround the central shaft, each steel ball accommodating groove is parallel to the central shaft and is long, the rod sleeve comprises three limiting holes penetrating through the tube wall of the rod sleeve, the three limiting holes surround the central shaft, each limiting hole is parallel to the central shaft and is long, and the three steel ball accommodating grooves are communicated with the three limiting holes respectively; the three limiting steel balls can move in the three steel ball containing grooves respectively, and the moving range is limited by the three long limiting holes respectively.
7. The telescopic floating tapping tool bar as claimed in claim 6, comprising an outer collar circumferentially disposed outside said bar sleeve and covering three limiting holes of said bar sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120956148.8U CN214721231U (en) | 2021-05-07 | 2021-05-07 | Telescopic floating tapping cutter bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120956148.8U CN214721231U (en) | 2021-05-07 | 2021-05-07 | Telescopic floating tapping cutter bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214721231U true CN214721231U (en) | 2021-11-16 |
Family
ID=78616976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120956148.8U Expired - Fee Related CN214721231U (en) | 2021-05-07 | 2021-05-07 | Telescopic floating tapping cutter bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214721231U (en) |
-
2021
- 2021-05-07 CN CN202120956148.8U patent/CN214721231U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211116 |