CN201132226Y - Cutter holder with opening and closing controlled by cam spanner - Google Patents
Cutter holder with opening and closing controlled by cam spanner Download PDFInfo
- Publication number
- CN201132226Y CN201132226Y CNU2007200655899U CN200720065589U CN201132226Y CN 201132226 Y CN201132226 Y CN 201132226Y CN U2007200655899 U CNU2007200655899 U CN U2007200655899U CN 200720065589 U CN200720065589 U CN 200720065589U CN 201132226 Y CN201132226 Y CN 201132226Y
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- CN
- China
- Prior art keywords
- cam spanner
- blade
- cutter holder
- planar section
- neck
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a toolholder, the opening and the closing of which are controlled by a cam wrench, and the toolholder comprises a toolholder main body which is divided into a neck part, an upper chucking part and a lower supporting part. The neck part, the upper chucking part and the lower supporting part make a groove which is divided into a blade clamping section and an extension section which extends to the neck part, and one end of the extension section next to the blade clamping section is provided with a cam wrench containing part which can support the upper chucking part through the cam wrench to correspond to the neck part to rotate elastically. The toolholder, the opening and the closing of which are controlled by the cam wrench, has the advantages of high component intensity, convenient blade dismounting, working efficiency improvement and production cost reduction.
Description
Technical field
The utility model relates to the metal cutting technology field, and relating in particular to can be by the cutter holder of cam spanner control keying.
Background technology
In the metal turning processing industry, often run into need be on workpiece the narrow groove of turning or the situation of cutting workpiece, the metal cutting tool that is used for this type of work adopts comparatively expensive hard material to make usually.In order to save cost, this cutter is made blade and two parts of cutter holder, and blade is made of hard material, has cutting edge and certain installation and positioning structure, and the chucking power that self elasticity of cutter holder that can rely on is provided is installed, fixed.After the cutting edge wearing and tearing, blade can be taken out from cutter holder, and change another blade and proceed cutting.In machining, reducing processing non-cutting time is one of effective way that improves working (machining) efficiency, reduces cost, and therefore, whether can pull down blade rapidly, and new blade is installed in reliably just seems particularly important on the cutter holder.
The patent No. is that the patent of invention of ZL94120093.0 discloses a kind of metal-cutting machine tool assembly, and it includes a rigidity cutter holder, is provided with the blade gripping section on cutter holder, and has been equipped with corresponding groove and opens spanner.On the chucking claw of cutter holder and basic pawl a through hole is arranged respectively, spanner has two prominent forks that separate each other and is used for engaging with the two through hole face, and at least one prominent fork can move relative to cutter holder, reaches to open the blade gripping section, the purpose of dismounting blade.The defective of this structure is: the through hole on chucking claw and the basic pawl makes the minimizing of gripping part thickness, intensity descend, easily produce stress and concentrates, therefore guaranteeing that the blade gripping section can provide enough greatly under the situation of clamping force, cause distortion of cutter holder gripping part even fracture easily, this has stayed hidden danger to actual production.
The patent No. is that the patent of invention of ZL00810378.X discloses a kind of clamping device and of a cutter holder that comprises and is used for the wrench assembly of cutting tip, on cutter holder, be provided with the blade gripping section, above the blade gripping section, offer keyway, the key recess is offered in the below, utilize keyway and key recess to assemble the spanner of a crank structure, one end of rotating spanner during use utilizes spanner to strut the blade gripping section, reaches the purpose of dismounting blade.Stress is concentrated certain effect though this structure is to improving, because the arm of force is shorter, therefore requires great effort very much in use, may cause the spanner distortion; Simultaneously, because the existence of keyway makes the intensity of cutter holder gripping part weaken, thereby may cause the distortion of cutter holder gripping part.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, the cutter holder that can be controlled keying by cam spanner that provide a kind of component strength height, be convenient to the fast assembling-disassembling blade, can improve working (machining) efficiency, reduces production costs.
For solving the problems of the technologies described above, the utility model by the following technical solutions.
A kind of cutter holder that can control keying by cam spanner, comprise tool holder body, described tool holder body is divided into neck, goes up card-tight part and lower support portion, described neck, last card-tight part and lower support portion surround a cell body, the extension that described cell body is divided into the blade gripping section and extends to neck, described extension is provided with and can goes up the cam spanner holding part that card-tight part rotates relative to neck elasticity by the cam spanner support near an end of blade gripping section.
Described cam spanner holding part has a planar section and one and the concave cylindrical face that is oppositely arranged of planar section, and described planar section is located at card-tight part, and described concave cylindrical face is located at lower support portion.
Described cam spanner holding part has a planar section and one and the concave cylindrical face that is oppositely arranged of planar section, and described planar section is located at lower support portion, and described concave cylindrical face is located at card-tight part.
The radius of curvature R of described concave cylindrical face and face of cylinder central shaft are 0＜T＜R to planar section apart from the magnitude relationship between the T.
Compared with prior art, advantage of the present utility model just is:
1, be convenient to and simple in structure, be convenient to make, arm of force cam spanner long, that the labor-saving effect is good is used, can be easily, with cam spanner the blade gripping section is strutted efficiently, reach the purpose of fast assembling-disassembling blade, process non-cutting time thereby reduce, improve working (machining) efficiency, reduce production costs.
2, need not offer through hole or keyway, make the stress distribution of card-tight part and lower support portion even, thereby avoid gripping part distortion or fracture, improve the usage safety performance of cutter holder, prolong the service life of cutter holder in any position of tool holder body.
3, after cam spanner places cam spanner holding part on the cutter holder, with the cam spanner half-twist, make the ultimate range between planar section and the concave cylindrical face increase to 2R from R+T, the blade gripping section struts to the precalculated position, this moment, cam spanner can reach self-locking state under the elastic force effect, made the installation of blade or removed convenient.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment 1;
Fig. 2 is the main TV structure schematic diagram of the utility model embodiment 1;
Fig. 3 is the main TV structure schematic diagram of the utility model embodiment 2;
Fig. 4 is that the utility model embodiment 1 cam spanner places the structural representation in the cam spanner holding part;
Fig. 5 is the structural representation behind the interior cam spanner half-twist of the utility model embodiment 1 cam spanner holding part.
Each label is represented among the figure:
1, tool holder body 2, cell body
3, cam spanner holding part 4, cam spanner
5, blade 11, neck
12, go up card-tight part 13, lower support portion
21, blade gripping section 22, extension
23, blade locating surface 31, planar section
32, concave cylindrical face 121, last seal face
131, lower support surface
The specific embodiment
Embodiment 1: as depicted in figs. 1 and 2, a kind of cutter holder that can control keying by cam spanner of the present utility model, comprise tool holder body 1, tool holder body 1 is divided into neck 11, goes up card-tight part 12 and lower support portion 13, neck 11, last card-tight part 12 and lower support portion 13 surround a cell body 2, the extension 22 that cell body 2 is divided into blade gripping section 21 and extends to neck 11, extension 22 is provided with cam spanner holding part 3 near an end of blade gripping section 21.Cam spanner holding part 3 has a planar section 31 and a concave cylindrical face 32, and planar section 31 is located at card-tight part 12, and concave cylindrical face 32 is located in the lower support portion 13 and planar section 31 corresponding positions; The radius of curvature of concave cylindrical face 32 is R, and face of cylinder central shaft is T to the distance of planar section 31, and its magnitude relationship is 0＜T＜R.Last card-tight part 12 is provided with seal face 121 in the part of blade gripping section 21, and lower support portion 13 is provided with lower support surface 131 in the part of blade gripping section 21, and blade gripping section 21 is provided with blade locating surface 23 with 22 joints, extension.The cutter holder that can control keying by cam spanner of the present utility model, be convenient to simple in structure, be convenient to make, arm of force cam spanner 4 long, that the labor-saving effect is good is used, can be easily, with cam spanner 4 blade gripping section 21 is strutted efficiently, reach the purpose of fast assembling-disassembling blade 5, process non-cutting time thereby reduce, improve working (machining) efficiency, reduce production costs; And need not offer through hole or keyway, make the stress distribution of card-tight part 12 and lower support portion 13 even, thereby avoid gripping part distortion or fracture, improve the usage safety performance of cutter holder, prolong the service life of cutter holder in any position of tool holder body 1.
Operation principle of the present utility model such as Fig. 1, Fig. 4 and shown in Figure 5, cam spanner 4 is " L " type, the one end is made as cam-like, its size, form all with cutter holder on cam spanner holding part 3 match, the end that cam spanner 4 is cam-like places in the cam spanner holding part 3 on the cutter holder, the major arc section of cam is cooperated with concave cylindrical face 32, minor segment cooperates with planar section 31, again with cam spanner 4 half-twists, make the planar section 31 of cam spanner holding part 3 and the ultimate range between the concave cylindrical face 32 increase to 2R from R+T, last card-tight part 12 rotates relative to neck 11 elasticity, blade gripping section 21 struts to the precalculated position, this moment, cam spanner 4 can reach self-locking state under the elastic force effect of cutter holder, made the installation of blade 5 or removed convenient.When blade 5 is installed, the lower support surface 131 that the lower surface of blade 5 is adjacent to cutter holder slips into blade gripping section 21, support blade locating surface 23 until blade 5 to cutter holder, again cam spanner 4 is gone back to original position, the last seal face 121 that makes cutter holder under the elastic force effect tightly push down blade 5, take out the installation process that cam spanner 4 is finished blade 5 again.When removing blade 5, only need utilize cam spanner 4 that blade gripping section 21 is strutted to the precalculated position, can easily blade 5 be taken off.
Embodiment 2: as shown in Figure 3, a kind of cutter holder that can control keying by cam spanner of the present utility model, comprise body 1, body 1 is divided into neck 11, goes up card-tight part 12 and lower support portion 13, neck 11, last card-tight part 12 and lower support portion 13 surround a cell body 2, the extension 22 that cell body 2 is divided into blade gripping section 21 and extends to neck 11, extension 22 are provided with the cam spanner holding part 3 that can card-tight part 12 be rotated relative to neck 11 elasticity by cam spanner 4 near an end of blade gripping sections 21.Cam spanner holding part 3 is made of planar section 31 and concave cylindrical face 32, and planar section 31 is located at lower support portion 13, and concave cylindrical face 32 is located on the card-tight part 12 and planar section 31 corresponding positions.The radius of curvature of concave cylindrical face 32 is R, and face of cylinder central shaft is T to the distance of planar section 31, and its magnitude relationship is 0＜T＜R.Last card-tight part 12 is provided with seal face 121 in the part of blade gripping section 21, and lower support portion 13 is provided with lower support surface 131 in the part of blade gripping section 21, and blade gripping section 21 is provided with blade locating surface 23 with 22 joints, extension.Present embodiment compares with embodiment 1 that only planar section 31 is opposite with concave cylindrical face 32 present positions, and the step of its operation principle and dismounting blade 5 is identical with embodiment 1.The cutter holder that can control keying by cam spanner of the present utility model, be convenient to simple in structure, be convenient to make, arm of force cam spanner 4 long, that the labor-saving effect is good is used, can be easily, with cam spanner 4 blade gripping section 21 is strutted efficiently, reach the purpose of fast assembling-disassembling blade 5, process non-cutting time thereby reduce, improve working (machining) efficiency, reduce production costs; And need not offer through hole or keyway, make the stress distribution of card-tight part 12 and lower support portion 13 even, thereby avoid gripping part distortion or fracture, improve the usage safety performance of cutter holder, prolong the service life of cutter holder in any position of tool holder body 1.
Claims (4)
1, a kind of cutter holder that can control keying by cam spanner, comprise tool holder body (1), described tool holder body (1) is divided into neck (11), last card-tight part (12) and lower support portion (13), described neck (11), last card-tight part (12) and lower support portion (13) surround a cell body (2), the extension (22) that described cell body (2) is divided into blade gripping section (21) and extends to neck (11) is characterized in that: described extension (22) are provided with and can go up the cam spanner holding part (3) that card-tight part (12) rotates relative to neck (11) elasticity by the cam spanner support near an end of blade gripping section (21).
2, the cutter holder that can control keying by cam spanner according to claim 1, it is characterized in that: described cam spanner holding part (3) has a planar section (31) and one and the concave cylindrical face (32) that is oppositely arranged of planar section (31), described planar section (31) is located at card-tight part (12), and described concave cylindrical face (32) is located at lower support portion (13).
3, the cutter holder that can control keying by cam spanner according to claim 1, it is characterized in that: described cam spanner holding part (3) has a planar section (31) and one and the concave cylindrical face (32) that is oppositely arranged of planar section (31), described planar section (31) is located at lower support portion (13), and described concave cylindrical face (32) is located at card-tight part (12).
4, according to claim 2 or the 3 described cutter holders that can be controlled keying by cam spanner, it is characterized in that: the radius of curvature R of described concave cylindrical face (32) and face of cylinder central shaft are 0＜T＜R to planar section (31) apart from the magnitude relationship between the T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200655899U CN201132226Y (en) | 2007-12-27 | 2007-12-27 | Cutter holder with opening and closing controlled by cam spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200655899U CN201132226Y (en) | 2007-12-27 | 2007-12-27 | Cutter holder with opening and closing controlled by cam spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201132226Y true CN201132226Y (en) | 2008-10-15 |
Family
ID=40060500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200655899U Expired - Lifetime CN201132226Y (en) | 2007-12-27 | 2007-12-27 | Cutter holder with opening and closing controlled by cam spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201132226Y (en) |
-
2007
- 2007-12-27 CN CNU2007200655899U patent/CN201132226Y/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: 20081015 |