CN213795283U - Universal knife handle - Google Patents
Universal knife handle Download PDFInfo
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- CN213795283U CN213795283U CN202022622076.1U CN202022622076U CN213795283U CN 213795283 U CN213795283 U CN 213795283U CN 202022622076 U CN202022622076 U CN 202022622076U CN 213795283 U CN213795283 U CN 213795283U
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- tool
- handle
- hole
- cutter
- positioning shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 229910001315 Tool steel Inorganic materials 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003801 milling Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a general handle of a knife, include: the tool comprises a tool handle, wherein a transmission key hole and a transmission key groove are formed in two sides of the tool handle along the axis direction of the tool handle, a positioning shaft extends from the lower part of the tool handle, and clamping grooves distributed along the circumferential direction are formed in the outer side of the positioning shaft; because the tool shank does not need to be detached from the taper inner hole of the machine tool spindle when the small tool head and the large tool head are replaced, the problems that two persons are needed to detach and the two tool shanks are needed to increase the production cost in the prior art are solved, the problem that the coaxiality of the tool shank and the taper inner hole of the machine tool spindle which are detached and matched with each other for multiple times is changed is solved, and the machining precision after installation is improved.
Description
Technical Field
The utility model relates to a general handle of a knife belongs to machine and adds accessory technical field.
Background
In a machining device, particularly in a common gantry milling machine, planar cutting is the most common machining mode, and in order to improve the machining efficiency, a disc-shaped milling cutter is usually adopted for cutting;
when small-area machining is carried out, a small disc-shaped milling cutter is generally adopted, as shown in fig. 5, the taper shaft at the upper end of the cutter handle 1 is inserted into the taper hole of the machine tool; a pull rod screw penetrates into a threaded hole at the upper end of the tool shank 1 from top to bottom through a main shaft hole of a machine tool; tightening a pull rod screw to fasten the tool shank in an inner hole of a main shaft of the machine tool; then a transmission key is arranged in the key groove of the tool handle 1; a center hole of the cutter head is aligned with a positioning shaft at the lower end of the cutter handle 1 and a key groove of the small cutter 2 and a key on the cutter handle 1, and then the small cutter 2 is arranged; covering the gasket 4; the compression bolt 3 penetrates through an inner hole of the gasket 4 and is screwed into a threaded hole at the lower end of the cutter handle 1 and is screwed tightly, so that the assembly of the cutter head is completed;
when machining a large area, a large disc cutter is generally used, see fig. 6, and the tapered shaft at the upper end of the shank 1 is inserted into the tapered hole of the machine tool, and the keyway portion is aligned with the key on the spindle. A pull rod screw penetrates into a threaded hole at the upper end of the tool shank 1 from top to bottom through a main shaft hole of a machine tool; tightening a pull rod screw to fasten the tool shank 1 in an inner hole of a machine tool spindle; the large cutter 6 is mounted after the center hole of the large cutter 6 is aligned with the lower end positioning shaft of the cutter handle 1 and the four connecting holes of the large cutter 6 are aligned with the four threaded holes on the cutter handle; the compression bolts 3 penetrate through the four connecting holes of the cutter head to be connected with and screwed tightly with the four threaded holes of the cutter handle, so that the cutter head is assembled;
when the small disc-shaped milling cutter and the large disc-shaped milling cutter need to be replaced, the cutter handle needs to be detached and reinstalled, when the cutter handle is replaced, two persons are needed to cooperate to complete the replacement, one person takes the tapered shaft end of the cutter handle to install the tapered shaft end into the tapered inner hole of the machine tool spindle, the other person penetrates the pull rod screw into the inner threaded hole of the cutter handle from the other end of the inner hole of the spindle and screws the pull rod screw, and then the cutter handle can be replaced well, so that the production cost is increased;
the more the matching times of the taper inner hole of the machine tool spindle and the tool shank are, the more the coaxiality of the matched axis is changed due to abrasion generated during matching, and the machining precision after installation is reduced;
meanwhile, different tool shanks are required for mounting the small disc-shaped milling cutter and the large disc-shaped milling cutter, and two different tool shanks must be purchased, so that the production cost is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a general handle of a knife.
The utility model also provides a forming method of general handle of a knife.
The utility model also provides a use method of general handle of a knife.
The utility model discloses a following technical scheme can realize.
The utility model provides a pair of general handle of a knife, include: the handle of a knife, be equipped with transmission keyhole and the transmission keyway that sets up along handle of a knife axis direction in handle of a knife both sides, the handle of a knife lower part extends has the location axle, and the location axle outside is equipped with along the draw-in groove of circumference distribution.
The forming method of the knife handle in the universal knife handle comprises the following steps:
clamping one end of a T8 tool steel bar blank phi 170X280 by using a numerical control lathe, drilling a tip hole at the other end of the steel bar blank, propping and turning a semi-finished blank by using a tip, leaving the end of a chuck at one end with the size phi 40mm, and leaving finish machining allowance of 2mm on one side of the other external dimension except that the length is kept unchanged at 280 mm;
step two, carrying out quenching and tempering treatment to ensure that the quenching and tempering hardness is HRC 45-50;
step three, after the semi-finished blank is well conditioned, clamping the end of a clamp by using a numerical control lathe, propping the other end of the clamp by using a tip, turning the external dimension of the part at one time, ensuring the external dimension, the taper and the length of the part, and punching and tapping threaded holes at two ends;
and step four, after all the turning procedures are finished, all the grooves are milled by an upper milling machine, and then the side threaded holes are machined by an upper milling machining center.
The use method of the universal knife handle comprises the following steps:
inserting an upper-end taper shaft of a tool shank into a taper hole of a machine tool, aligning a key groove with a key on a main shaft, and penetrating a pull rod screw into an upper-end threaded hole of the tool shank from top to bottom through a main shaft hole of the machine tool; tightening a pull rod screw to fasten the tool shank in an inner hole of a main shaft of the machine tool;
step two, when a small cutter head is installed, a transmission key groove is installed in the cutter handle, a center hole of the small cutter head is aligned with a lower end positioning shaft of the cutter handle and then installed, the small cutter head is installed after the key groove of the small cutter head is aligned with keys of transmission key holes installed in the cutter handle, and a gasket is covered; a compression bolt penetrates through an inner hole of the gasket and is screwed into a threaded hole in a lower end positioning shaft of the cutter handle and is screwed tightly, so that the assembly of the small cutter head is completed;
step three, when the large cutter head is replaced, aligning and clamping the two half step parts of the conversion sleeve into a clamping groove on a lower end positioning shaft of the cutter handle, aligning a center hole of the large cutter head with an excircle of the conversion sleeve and four connecting holes of the large cutter head with four side threaded holes of the cutter handle, and then installing the large cutter head; the pressing bolt penetrates through the connecting hole of the large cutter head to be connected with the threaded hole of the cutter handle and is screwed tightly, so that the replacement of the large cutter head is completed.
The beneficial effects of the utility model reside in that: because the tool shank does not need to be detached from the taper inner hole of the machine tool spindle when the small tool head and the large tool head are replaced, the problems that two persons are needed to detach and the two tool shanks are needed to increase the production cost in the prior art are solved, the problem that the coaxiality of the tool shank and the taper inner hole of the machine tool spindle which are detached and matched with each other for multiple times is changed is solved, and the machining precision after installation is improved.
Drawings
Fig. 1 is a schematic front view of the present invention;
FIG. 2 is a view in elevation of FIG. 1;
FIG. 3 is a front view of the small knife disk of the present invention;
FIG. 4 is a front view of the large cutter head of the present invention;
FIG. 5 is a schematic view of the installation of the existing small cutter head of the present invention;
fig. 6 is a schematic view of the installation of the existing large cutter head of the present invention.
In the figure: 1-a knife handle; 2-a small cutter head; 11-positioning the shaft; 12-a card slot; 13-drive keyhole; 14-a drive keyway; 4-a gasket; a 5-bond; 6-large cutter head.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-4.
The utility model discloses a general handle of a knife, include: the tool holder comprises a tool holder 1, wherein a transmission key hole 13 and a transmission key groove 14 are formed in two sides of the tool holder 1 along the axis direction of the tool holder 1, a positioning shaft 11 extends from the lower portion of the tool holder 1, and clamping grooves 12 distributed along the circumferential direction are formed in the outer side of the positioning shaft 11.
The transmission key hole 13 is a through hole.
The positioning shaft 11 is located in the center of the lower end of the cutter handle 1, and a threaded hole is formed in the positioning shaft 11.
The side edge of the knife handle 1 is circumferentially provided with a plurality of spaced threaded holes.
The center line of the threaded hole in the positioning shaft 11 is superposed with the center line of the tool holder 1.
The knife handle 1 is a conical body with a small upper part and a large lower part, and a threaded hole is formed in the top of the knife handle 1.
The tool shank 1 is made of T8 tool steel.
The method for forming the knife handle 1 in the universal knife handle comprises the following steps:
step one, referring to fig. 1 to 2, clamping one end of a T8 tool steel bar blank phi 170X280 by using a numerical control lathe, drilling a tip hole at the other end, propping and turning a semi-finished blank by using a tip, leaving the end of a chuck at one end with the size phi 40mm, and leaving finishing allowance of 2mm in the unilateral size of the rest except that the length is kept unchanged at 280 mm;
step two, carrying out quenching and tempering treatment to ensure that the quenching and tempering hardness is HRC 45-50;
step three, after the semi-finished blank is well conditioned, clamping the end of a clamp by using a numerical control lathe, propping the other end of the clamp by using a tip, turning the external dimension of the part at one time, ensuring the external dimension, the taper and the length of the part, and punching and tapping threaded holes at two ends;
and step four, after all the turning procedures are finished, all the grooves are milled by an upper milling machine, and then the side threaded holes are machined by an upper milling machining center.
The use method of the universal knife handle comprises the following steps:
referring to fig. 1 to 2, in the first step, an upper end taper shaft of a tool shank 1 is inserted into a taper hole of a machine tool, a key groove 13 is aligned with a key on a main shaft, and a draw bar screw penetrates into an upper end threaded hole of the tool shank 1 from top to bottom through a main shaft hole of the machine tool; tightening a pull rod screw to fasten the tool shank 1 in an inner hole of a machine tool spindle;
referring to fig. 1 to 3, in the second step, when the small cutter head 2 is installed, a transmission key slot 14 is installed in the cutter handle 1, the center hole of the small cutter head 2 is aligned with the lower end positioning shaft 11 of the cutter handle 1 and then installed, at the moment, the small cutter head 2 is installed after the key slot of the small cutter head 2 is aligned with the key 5 of the transmission key hole 13 installed in the cutter handle 1, and a gasket 4 is covered; the compression bolt 3 penetrates through an inner hole of the gasket 4 and is screwed into a threaded hole in the lower end positioning shaft 11 of the cutter handle 1 and is screwed tightly, so that the assembly of the small cutter head is completed;
referring to fig. 1, 2 and 4, in a third step, when a large cutter head is replaced, two half step portions of the conversion sleeve 4 are aligned and clamped into a clamping groove 12 on a lower end positioning shaft 11 of the cutter handle 1, and the large cutter head 6 is mounted after a central hole of the large cutter head 6 is aligned with an excircle of the conversion sleeve 4 and four connecting holes of the large cutter head 6 are aligned with four side threaded holes of the cutter handle 1; the compression bolt 3 passes through the connecting hole of the large cutter head 6 to be connected with the threaded hole of the cutter handle 1 and is screwed tightly, so that the replacement of the large cutter head is completed.
Because the cutter handle 1 does not need to be detached from the taper inner hole of the machine tool spindle when the small cutter head 2 and the large cutter head 6 are replaced, the problems that two persons are needed to detach and install and two cutter handles 1 are needed to increase production cost in the prior art are solved, the problem that the coaxiality of the abrasion axes of the cutter handles 1 and the taper inner hole of the machine tool spindle is detached and matched for multiple times is changed is solved, and the machining precision after installation is improved.
Claims (8)
1. A universal tool shank, comprising: the tool holder comprises a tool holder (1), wherein transmission key holes (13) and transmission key grooves (14) are formed in two sides of the tool holder (1) and are arranged along the axis direction of the tool holder (1), a positioning shaft (11) extends from the lower portion of the tool holder (1), and clamping grooves (12) are formed in the outer side of the positioning shaft (11) and are distributed along the circumferential direction.
2. The universal tool shank of claim 1, wherein: the transmission key hole (13) is a through hole.
3. The universal tool shank of claim 1, wherein: the positioning shaft (11) is positioned in the center of the lower end of the cutter handle (1), and a threaded hole is formed in the positioning shaft (11).
4. The universal tool shank of claim 1, wherein: the side edge of the knife handle (1) is provided with a plurality of spaced threaded holes along the circumferential direction.
5. The universal tool shank of claim 1, wherein: the center line of the threaded hole in the positioning shaft (11) is superposed with the center line of the cutter handle (1).
6. The universal tool shank of claim 1, wherein: the knife handle (1) is a conical body with a small upper part and a large lower part, and a threaded hole is formed in the top of the knife handle (1).
7. The universal tool shank of claim 1, wherein: the knife handle (1) is made of T8 tool steel.
8. The universal tool shank of claim 1, wherein: the hardness of the knife handle (1) is HRC 45-50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022622076.1U CN213795283U (en) | 2020-11-13 | 2020-11-13 | Universal knife handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022622076.1U CN213795283U (en) | 2020-11-13 | 2020-11-13 | Universal knife handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213795283U true CN213795283U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022622076.1U Active CN213795283U (en) | 2020-11-13 | 2020-11-13 | Universal knife handle |
Country Status (1)
| Country | Link |
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| CN (1) | CN213795283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207588A (en) * | 2020-11-13 | 2021-01-12 | 贵州航天工业学校 | Universal knife handle and forming method and using method thereof |
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2020
- 2020-11-13 CN CN202022622076.1U patent/CN213795283U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207588A (en) * | 2020-11-13 | 2021-01-12 | 贵州航天工业学校 | Universal knife handle and forming method and using method thereof |
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