CN214642041U - Collet type cutter structure - Google Patents
Collet type cutter structure Download PDFInfo
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- CN214642041U CN214642041U CN202120575354.4U CN202120575354U CN214642041U CN 214642041 U CN214642041 U CN 214642041U CN 202120575354 U CN202120575354 U CN 202120575354U CN 214642041 U CN214642041 U CN 214642041U
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- rod
- tool
- collet
- cutter
- buckling
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- 210000000078 claw Anatomy 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 2
- 239000012809 cooling fluid Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 claims 1
- 238000005555 metalworking Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract description 3
- 239000000110 cooling liquid Substances 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a collet chuck formula cutter structure, including the ladder pole and detain the pole, the ladder pole includes the first body of rod and the second body of rod, be equipped with the first passageway that is used for installing the cutter arbor on the first body of rod, be equipped with the toper structure with the interior taper hole looks adaptation of cutter main shaft on the second body of rod, be equipped with the screw hole in the second body of rod, the upper portion of detaining the pole be equipped with the interior tool withdrawal of cutter main shaft detain claw matched with catching groove, detain be equipped with on the pole with the external screw thread of screw hole looks adaptation. And a second channel is arranged in the buckling rod. And the buckling rod is provided with a water stopping screw which is arranged at the lower end of the second channel. The step rod is provided with a groove part which is convenient for the operation of a wrench tool. This collet chuck formula cutter simple structure, convenient operation need not to use the handle of a knife, alright carry out the purpose of metalworking and automatic tool changing with the ATC tool magazine of cooperation CNC toolroom to metalworking's operating efficiency has been improved.
Description
Technical Field
The utility model relates to a collet chuck formula cutter structure belongs to cutter centre gripping technical field.
Background
The CNC is named Computer numerical Control, namely Computer numerical Control, and a numerical Control machining center machine (MACHINE CENTER), namely a CNC machine tool controlled by the Computer numerical Control; in short, a rotating tool is used to cut a workpiece of a desired material into a desired shape according to the instructions of a computer program.
Generally, an ATC Tool magazine (ATC) is installed beside the Tool spindle of the CNC machining center, as disclosed by the name TWM481784U, wherein the Tool magazine is associated with various face mills, end mills, large and small drills, and an Automatic Tool Changer 8 is installed between the Tool magazine and the Tool spindle 7, as shown in fig. 8-10; wherein, the automatic tool changer 8 is connected with and drives a tool changing claw 81 by a driving device 82, and two ends of the tool changing claw 81 are respectively provided with a tool taking end 811, and the two tool taking ends 811 respectively grab the tool magazine and the tool 9 of the tool spindle 7, and then are rotated by 180 degrees for mutual replacement and exchange; in particular, the tool 9 that can be changed in cooperation with the automatic tool changer of the processing machine is composed of a tool shaft 91 and a tool shank 92.
Before the cutter 9 performs automatic cutter changing by 180 degrees rotation, the cutter spindle 7 performs a cutter withdrawing operation; in other words, a tool retracting mechanism is provided between the tool bar 91 and the tool spindle 7, that is, the tool retracting mechanism is provided with a fastening claw 71 inside the tool spindle 7, a fastening end 921 is provided at the tail end of the tool shank 92 corresponding to the fastening claw 71, if the fastening claw 71 tightly fastens the fastening end 921 of the tool shank 92 and is pulled upwards by the tension spring, a tight joint is formed between the tool shank 92 and the tool spindle 7 by the pulling surface, so that the tool spindle 7 and the tool shank 92 rotate together in a linkage manner and perform workpiece cutting; if the latch 71 is pushed downward tightly against the latch end 921 of the shank 92 and operated as a tool withdrawal, the tapered surfaces of the shank 92 and the tapered hole 72 in the tool spindle 7 are released to facilitate removal of the tool 9 by the tool changing latch 81.
As shown in fig. 11, the first collet type tool 9a is provided, and the first collet type tool 9a is configured to install a first collet 10 at the front end of a tool shank 92a, and then a nut 93 is used to tightly press the collet 10 to clamp an end mill or a drill bit, i.e. a tool shank 91, however, the first collet type tool 9a cannot be used for automatic tool feeding and retracting of the tool spindle 7, so that the first collet type tool 9a cannot be used for automatic tool changing of an ATC tool magazine of a CNC tool machine, and tool changing must be manually performed, which affects the working efficiency of the machine.
In the prior art, a second collet type tool 9b without the nut 93 is used, and as shown in fig. 12, the second collet type tool 9b is used to press the second collet 10b and combine it with the tool shank 92 by using a screw 94 and a spacer 95, the collet is a heat-shrinkable type collet, and the second collet 10b and a tool shank 91 must be locked by manual operation, so that the second collet type tool 9b cannot be used for automatic tool feeding and retracting of the tool spindle 7, that is, the second collet type tool 9b cannot be used for automatic tool changing of the ATC tool magazine of the CNC tool machine. In summary, the conventional collet-type tool is affected by its structure, and thus can only be manually fed and withdrawn, and does not have a tool changing function for automatically feeding and withdrawing a tool in cooperation with a CNC processing machine.
Disclosure of Invention
The utility model discloses not enough to prior art exists, provide a simple structure, convenient operation need not to use the handle of a knife, can cooperate the collet chuck formula cutter structure that the tool retracting mechanism of CNC processing machine realized automatic tool changing.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a collet chuck type cutter structure comprises a step rod and a buckling rod, wherein the step rod comprises a first rod body and a second rod body, a first channel for installing a cutter bar is arranged on the first rod body, a conical structure matched with an inner conical hole of a cutter spindle is arranged on the second rod body, a threaded hole is formed in the second rod body, a buckling groove matched with a cutter withdrawing buckling claw in the cutter spindle is formed in the upper portion of the buckling rod, and an external thread matched with the threaded hole is formed in the buckling rod.
The utility model has the advantages that: the cutter bar can be arranged on a first channel of the step rod, the buckling rod is in threaded connection with the step rod, the outer side of the step rod is provided with a conical structure matched with an inner conical hole of a cutter main shaft of the CNC processing machine, the buckling rod is provided with a buckling groove capable of buckling a buckling claw of the cutter main shaft, the collet type cutter is arranged in the cutter main shaft, the buckling groove is buckled by the buckling claw of the specific cutter main shaft, the second rod body is tightly matched with the inner conical hole of the cutter main shaft, thereby realizing automatic tool feeding, when the fastening claw pushes the fastening rod downwards to withdraw the tool, the fastening claw is detached from the tool structure after the tool taking end of the tool changing claw of the automatic tool changing device is connected with the step rod, thereby completing the automatic tool changing procedure, this collet chuck formula cutter simple structure, convenient operation need not to use the handle of a knife, alright carry out the purpose of metalworking and automatic tool changing with the ATC tool magazine of cooperation CNC toolroom to metalworking's operating efficiency has been improved.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, a hollow second channel for supplying cooling liquid is arranged in the fastening rod.
The beneficial effect of adopting above-mentioned further scheme is that, coolant liquid accessible second passageway is used for cooling the cutter and/or the work piece that is processed in getting into the cutter structure.
Furthermore, a water stopping screw is arranged on the buckling rod and is arranged at the lower end of the second channel.
The water stopping screw is connected to one end of the second channel of the buckling rod, wherein the water stopping screw is used for sealing the outlet water of the cooling liquid.
Furthermore, the outer diameter of the first rod body is smaller than that of the second rod body, and the first rod body and the second rod body are of an integral structure.
The tool bar has the advantages that the tool bar is mounted and matched with the inner taper hole of the tool spindle, and the supporting strength of the step rod is improved.
Further, the threaded hole is communicated with the first channel, the aperture of the threaded hole is larger than that of the first channel, and the threaded hole and the first channel form a stepped hole.
The beneficial effect who adopts above-mentioned further scheme is that cutter arbor and lock joint pole connect convenient and fast, guarantees the self intensity of ladder pole simultaneously.
Furthermore, the step rod is provided with a groove part which is convenient for the operation of the wrench tool.
The beneficial effects of adopting above-mentioned further scheme are that, on the one hand be convenient for with CNC processing reach trade the stable connection of sword end of getting of sword claw, on the other hand the ladder pole and the knot that the cartridge clip formula cutter structure was put up the convenient operation with buckling, the accessible spanner grips the recess portion and realizes being connected between buckling pole and the ladder pole.
Further, the bottom of the groove portion is a hexagonal portion.
Adopt above-mentioned further scheme's beneficial effect be, hexagonal portion can match with current spanner, and convenient operation is swift.
Furthermore, the second channel is communicated with the first channel to form a water outlet channel for supplying cooling liquid, and at least one water outlet channel is arranged.
The beneficial effect who adopts above-mentioned further scheme is that, when needs coolant liquid cooling cutter, then can lift the stagnant water screw off, thereby the coolant liquid can lead to the cutter arbor through second passageway, the first passageway of intercommunication thereby reaches the purpose of cooling down to the cutter arbor.
Furthermore, a triangular edge part for positioning the cutter is further arranged on the step rod.
The tool taking end of the tool changing claw of the automatic tool changing device is conveniently connected and positioned with the collet type tool in a stable structure.
Furthermore, the ladder bar is made of a heat-shrinkable collet chuck.
The beneficial effect who adopts above-mentioned further scheme is that, the difference of the coefficient of thermal expansion of utilizing the body of rod and cutter arbor comes powerful and high accuracy clamping tool to obtain powerful stable clamping-force, thereby guarantee the high accuracy location of cutter arbor.
Drawings
Fig. 1 is a schematic perspective view of a collet-type cutter structure according to the present invention;
fig. 2 is a schematic sectional structure of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 taken along the direction a-a;
FIG. 4 is a schematic cross-sectional view taken along the line b-b in FIG. 2;
FIG. 5 is a schematic structural view illustrating a state where the collet-type tool structure of the present invention is engaged with a tool spindle;
FIG. 6 is a schematic structural view of the cartridge-type cutter structure according to the present invention in the cutting state with automatic tool changing;
FIG. 7 is a schematic view of the collet type tool structure showing the tool-removing state of the automatic tool changing;
FIG. 8 is a schematic structural view of a conventional automatic tool changer;
FIG. 9 is a schematic view of the structure of FIG. 8 taken along the direction c-c;
FIG. 10 is a schematic structural view of a tool with a tool holder and a tool spindle in an automatic feeding or retracting state;
FIG. 11 is a schematic view of a first collet type tool of the prior art;
fig. 12 is a schematic structural view of a second conventional collet-type cutter;
in the figure, 1, a step lever; 10. a first channel; 11. a first rod body; 12. a second rod body; 121. a first connecting portion; 122. a groove part; 123. a hexagonal section; 124. a triangular edge portion; 13. a shoulder portion; 131. an inward curved arc angle; 2. a buckling rod; 20. a second channel; 21. a fastening groove; 22. a second coupling portion; 3. a water stop screw; 7. a tool spindle; 71. buckling claws; 72. an inner taper hole; 8. an automatic tool changer; 81. changing a cutter claw; 811. taking a cutter end; 82. a drive device; 9. a cutter; 9a, a first collet type tool; 9b, a second collet type tool; 91. a cutter bar; 92. a knife handle; 921. buckling and connecting ends; 93. a screw cap cover; 94. a screw; 95. cushion blocks; 10. a first collet; 10b, a second collet.
Detailed Description
The principles and features of the present invention are described below in conjunction with examples, which are set forth only to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1-7, a collet chuck type tool structure includes a step rod 1 and a fastening rod 2, where the step rod 1 includes a first rod 11 and a second rod 12, the first rod is provided with a first channel 10 for installing a tool bar, the second rod is provided with a conical structure adapted to an inner conical hole of a tool spindle, the second rod is provided with a threaded hole, the fastening rod 2 is provided at an upper portion thereof with a fastening groove 21 matched with a tool withdrawal fastening claw in the tool spindle, and the fastening rod is provided with an external thread adapted to the threaded hole.
A hollow second channel 20 for supplying cooling liquid is provided in the fastening rod. Coolant may enter the tool structure through the second passage for cooling the tool and/or the workpiece being machined.
And a water stopping screw 13 is arranged on the buckling rod and is arranged at the lower end of the second channel. The water-stopping screw is connected to one end of the second channel of the fastening rod, wherein the water-stopping screw is used to seal the outlet of the cooling liquid.
The outer diameter of the first rod body is smaller than that of the second rod body, and the first rod body and the second rod body are of an integrated structure. Not only the installation of cutter arbor and with the adaptation of the interior taper hole of cutter main shaft, increase the support intensity of rank pole moreover.
The threaded bore is in communication with the first passage. The aperture of the threaded hole is larger than that of the first channel, and the threaded hole and the first channel form a stepped hole. The connection of the cutter bar and the buckling rod is convenient and fast, and the self strength of the step rod is ensured.
The step bar is provided with a groove portion 122 for facilitating the operation of a wrench tool. On one hand, the tool taking end of the tool changing claw which is convenient to process with a CNC is stably connected, on the other hand, the stepped rod and the buckling rod of the cylindrical clamping type tool structure are convenient to connect and operate, and the buckling rod and the stepped rod can be connected by holding the groove part through a wrench.
The bottom of the groove portion is a hexagonal portion 123. The hexagonal part can be matched with a wrench, and the operation is convenient and quick.
The second channel is communicated with the first channel to form a water outlet channel for supplying cooling liquid, and at least one water outlet channel is arranged. When the cutter is cooled by the cooling liquid, the water stop screw can be detached, and the cooling liquid can be led to the cutter bar through the communicated second channel and the communicated first channel, so that the purpose of cooling the cutter bar is achieved.
The step bar is also provided with a triangular edge part 124 for positioning the cutter. The tool taking end of the tool changing claw of the automatic tool changing device is conveniently connected and positioned with the collet chuck type tool in a stable structure.
The step rod is made of a heat-shrinkable collet. The cutter is clamped strongly and precisely by using the difference between the thermal expansion coefficients of the rod body and the cutter bar, so that the high-precision positioning of the cutter bar is ensured.
The existing ATC cutter exchange has a cutter handle, and then some mechanism transformation is carried out on the cutter handle, and the collet type cutter structure can be directly matched and applied to an ATC cutter library without arranging the cutter handle, and provides an automatic cutter changing purpose between the ATC cutter library and a cutter main shaft, so that the aim of improving the metal processing operation efficiency is fulfilled. The step rod 1 is mainly provided with a cutter bar 91, a hollow first channel 10 is arranged in the cutter bar, and the cutter bar is formed by connecting a first rod body 11 and a second rod body 12 which have two different outer diameters, the first rod body 11 and the second rod body 12 form a shoulder 13 integrally, and the shoulder 13 is usually set as an inner bent arc angle 131; the second rod 12 is a taper type and has a first connecting portion 121, the first connecting portion 121 is preferably an internal thread, and the first rod 11 is provided with the knife bar 91.
The tool structure is preferably a heat-shrinkable collet chuck structure and is provided with at least one water outlet channel so as to supply cooling liquid when a workpiece is cut; a groove 122 is formed on the second rod 12, and a hexagonal portion 123 is formed at the bottom of the groove 122, wherein the hexagonal portion 123 can be inserted by a hand tool to facilitate the screwing and locking between the two components of the step rod 1 and the fastening rod 2; a triangular edge 124 is formed between the shoulder 13 and the groove 122 of the second rod 12, so that a jig can be used for carrying out a triangular positioning and fixing manner conveniently, and the step rod 1, the fastening rod 2 and other two components are screwed and locked; in addition, the tool pick-up end 811 of the tool changing claw 81 of the automatic tool changer 8 is designed to be able to fit the groove portion 122, the hexagonal portion 123 and the triangular side portion 124 of the step rod 1, so that the tool pick-up end 811 of the tool changing claw 81 of the automatic tool changer 8 is sleeved in the groove portion 122, the hexagonal portion 123 and the triangular side portion 124 of the step rod 1 for precise positioning, tool pick-up and tool change.
The fastening rod 2 is mainly used for providing a fastening claw 71 fastened in the tool spindle 7 so as to generate an automatic tool retracting function in the tool spindle of the machine tool, wherein a hollow second channel 20 is arranged in the fastening rod 2, a second connecting part 22 is arranged at one end of the fastening rod, a fastening groove 21 is arranged at the other end of the fastening rod, and the second connecting part 22 is preferably in a male thread shape and is connected to the first connecting part 121 of the stepped rod 1.
The water-stopping screw 3, wherein the water-stopping screw 3 is connected to one end of the second channel 20 of the fastening rod 2, and the water-stopping screw 3 is used to seal the coolant from flowing out.
Automatic tool changing process: the first rod body 11 of the step rod 1 is provided with a cutter bar 91, the second rod body 12 is screwed and locked between the step rod 1 and the buckling rod 2 in a hand tool operation mode or a jig triangular positioning fixing mode, and then the second rod body 12 of the step rod 1 is connected into the inner taper hole 72 of the cutter main shaft 7, so that the buckling rod 2 is buckled and connected with the buckling claw 71 positioned in the cutter main shaft 7, and the purposes that the collet type cutter A is used as a cutter without using a cutter handle and is directly provided for an ATC tool magazine of a tool machine to carry out metal cutting processing and automatic cutter changing are achieved.
As shown in fig. 6 and 7, the collet type tool structure is implemented in an ATC tool magazine of a machine tool for metal cutting and automatic tool changing; when the collet type tool structure is installed in the tool spindle, a buckling claw 71 arranged in the tool spindle 7 tightly buckles the buckling groove 21 of the buckling rod 2 and is pulled upwards by a tension spring, so that a pulling surface between the second rod body 12 of the step rod 1 and the inner taper hole 72 of the tool spindle 7 forms tight joint, and the collet type tool A and the tool spindle 7 rotate together in a linkage manner and cut a workpiece; when the fastening claw 71 pushes the collet-type tool structure downward and retracts, the second rod 12 of the step rod 1 and the inner tapered hole 71 of the tool spindle 7 are loosened, so that the tool changing claw 81 of the automatic tool changer 8 is precisely fastened and fastened in the groove 122, the hexagonal part 123 and the triangular part 124 of the collet-type tool structure, and then the collet-type tool structure is detached, so that the automatic tool changing procedure is performed.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A collet chuck type cutter structure is characterized by comprising a step rod and a buckling rod, wherein the step rod comprises a first rod body and a second rod body, a first channel is arranged on the first rod body, a conical structure matched with an inner conical hole of a cutter main shaft is arranged on the second rod body, a threaded hole is formed in the second rod body, a buckling groove matched with a tool withdrawal buckling claw in the cutter main shaft is formed in the upper portion of the buckling rod, and an external thread matched with the threaded hole is formed in the buckling rod.
2. The collet tool structure of claim 1, wherein a second passage is provided in the shank for supplying a cooling fluid.
3. The collet cutter structure of claim 2, wherein a water stop screw is provided on the fastening rod, the water stop screw being provided at a lower end of the second passage.
4. The collet cutter structure of claim 1, 2 or 3, wherein the first shank has an outer diameter smaller than the outer diameter of the second shank, the first shank and the second shank being of unitary construction.
5. The collet cutter structure of claim 4, wherein the threaded bore is in communication with the first passage, the threaded bore having a larger bore diameter than the first passage, the threaded bore and first passage forming a stepped bore.
6. The collet tool structure of claim 1, 2 or 3, wherein the step bar is provided with a recessed portion for facilitating operation of a wrench tool.
7. The collet cutter structure of claim 6, wherein the bottom of the recessed portion is a hex.
8. The collet tool structure of claim 2, wherein the second passage communicates with the first passage to form a water outlet passage for supplying a cooling fluid, and at least one of the water outlet passages is provided.
9. The collet tool structure of claim 1, wherein said stepped shank further comprises a triangular edge portion for tool positioning.
10. The collet tool structure of claim 1, wherein said stepped shank is fabricated using a heat shrink collet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110200901 | 2021-01-25 | ||
| TW110200901U TWM613946U (en) | 2021-01-25 | 2021-01-25 | Improved structure of water outlet tool collet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214642041U true CN214642041U (en) | 2021-11-09 |
Family
ID=77911780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120575354.4U Active CN214642041U (en) | 2021-01-25 | 2021-03-22 | Collet type cutter structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN214642041U (en) |
| TW (1) | TWM613946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894437A (en) * | 2021-01-15 | 2021-06-04 | 山谦企业股份有限公司 | Collet type cutter structure |
-
2021
- 2021-01-25 TW TW110200901U patent/TWM613946U/en unknown
- 2021-03-22 CN CN202120575354.4U patent/CN214642041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894437A (en) * | 2021-01-15 | 2021-06-04 | 山谦企业股份有限公司 | Collet type cutter structure |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM613946U (en) | 2021-07-01 |
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