CN207079453U - Cutter holding device - Google Patents
Cutter holding device Download PDFInfo
- Publication number
- CN207079453U CN207079453U CN201720921808.2U CN201720921808U CN207079453U CN 207079453 U CN207079453 U CN 207079453U CN 201720921808 U CN201720921808 U CN 201720921808U CN 207079453 U CN207079453 U CN 207079453U
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- reception hole
- holding device
- guide groove
- clamp holder
- circular guide
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000012856 packing Methods 0.000 claims abstract description 10
- 238000003801 milling Methods 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
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- Details Of Cutting Devices (AREA)
Abstract
The utility model discloses a kind of cutter holding device, and to clamp cutter, it includes pedestal, grip slipper and spacing group.Pedestal includes body, reception hole and non-circular guide groove.Reception hole is arranged at body, and reception hole includes inwall and perforate, and perforate is located on inwall；Non-circular guide groove with reception hole is connected located at body and by perforate.Grip slipper is arranged at pedestal, and grip slipper includes setting unit and base shank, base shank is connected with setting unit, and base shank is inserting reception hole and comprising handle body and at least one location division, handle body is located in reception hole, at least one location division it is recessed in handle body and position it is corresponding with perforate.Spacing group is arranged at non-circular guide groove and comprising clamp holder and bolt, and clamp holder is located in non-circular guide groove, and bolt passes through clamp holder；Swivel bolt can make clamp holder is axially displaced to support location division to perforate, make clamp holder packing handle body.Whereby, cutter holding device of the present utility model, can allow grip slipper and the easy assembly and disassembly of pedestal.
Description
Technical field
The utility model relates to a kind of cutter holding device, and especially relevant a kind of for being installed on road milling
Cutter holding device on machine, various churning drivens machinery or milling tool.
Background technology
Can twist it be arranged equipped with multiple cutters, cutter on the milling and planing drum of Ordinary Rd milling machine, when milling machine row
When walking, milling and planing drum rotates carries out milling work with band cutter action, and cutter is with installed in milling by cutter holding device
On plane drum.
Existing cutter holding device includes pedestal and grip slipper, and grip slipper sets and is installed on pedestal for cutter group, its
Middle grip slipper is to be combined using lock-connection structure is removable with pedestal, and can carry out the maintenance or replacing of cutter.
Using upper, for cutter to exclude road surface, it bestows high pressure to road and the easily breakage caused by reaction force, and
If cutter holding device structure configuration it is bad, easily cause assembled between grip slipper and pedestal it is unstable, and be easier by
Reaction force influences and produces and hit damage, and then reduces the service life of cutter and cutter holding device, and increases instrument
The cost of replacement and repair.Further, since pedestal and grip slipper are impacted by powerful reaction force, therefore pedestal and grip slipper sheet
The structural strength of body is also that needs consider part.
In view of this, how the combination stability between efficient hardening pedestal and cutter holding seat, and increase grip slipper
Easness is unloaded with the group of pedestal between the two, the target made great efforts then into related dealer.
Utility model content
The purpose of this utility model is to provide a kind of cutter holding device, by reception hole, non-circular guide groove with it is spacing
The structure configuration of group, can allow the easy assembly and disassembly of both grip slipper and pedestal, and maintain laser intensity.
A kind of cutter holding device is provided according to an embodiment of the present utility model, to clamp cutter, cutter holding dress
Put comprising pedestal, grip slipper and spacing group.Pedestal includes body, reception hole and non-circular guide groove.Reception hole is arranged at body, and
Reception hole includes inwall and perforate, and perforate is located on inwall；Non-circular guide groove with reception hole is connected located at body and by perforate,
Non-circular guide groove has axially.Grip slipper is arranged at pedestal, and grip slipper includes setting unit and base shank, and setting unit supplies cutter group
If base shank is connected with setting unit, base shank is to insert reception hole, and base shank includes handle body and at least one location division,
Handle body is located in reception hole, at least one location division it is recessed in handle body and position it is corresponding with perforate.Spacing group be arranged at it is non-circular
Guide groove, and spacing group includes clamp holder and bolt, clamp holder are located in non-circular guide groove, the cross sectional shape of clamp holder with it is non-circular
The cross sectional shape of guide groove is corresponding, and bolt passes through clamp holder；Wherein, swivel bolt can make clamp holder axially displaced to perforate
Location division is supported, so that clamp holder packing handle body.
According to foregoing cutter holding device, wherein the cross sectional shape of non-circular guide groove is in ellipse, and clamp holder is in ellipse
Rod structure.Or clamp holder includes first end face, second end face, rank portion and inclined-plane, second end face is relative with first end face, rank portion with
First end face is connected, and inclined-plane is connected between rank portion and second end face.Or location division includes support surface, support surface from handle body one
Skew back is to the opposite side of handle body, and support surface is supported by inclined-plane.
According to foregoing cutter holding device, the portion of being provided with includes chimeric section connection handle body, and reception hole connects comprising round mouth
Logical external environment, and pedestal is also recessed comprising positioning, positioning is recessed to be placed in body, and position it is recessed include embeded slot, its shape corresponds to embedding
Section is closed, and embeded slot includes bottom wall, wherein, round mouth is located at bottom wall, and after handle body inserts reception hole by round mouth, chimeric section is embedded in embedding
Close groove.Or setting unit also includes multiple composition surfaces, its circular connected embedding section, and position and recessed also include multiple locating surfaces, its ring
It is around embeded slot and corresponding with multiple composition surfaces.
A kind of cutter holding device is provided according to another embodiment of the present utility model, to clamp cutter, cutter holding
Device is arranged at the milling and planing drum of road milling machine, and cutter holding device includes pedestal, grip slipper and spacing group, and pedestal is arranged at milling
The surface of drum is dug, and pedestal includes body, reception hole and non-circular guide groove, reception hole is located at body, and reception hole has hole axle
To the drum axial direction of vertical milling and planing drum, reception hole includes inwall and perforate, and perforate is located on inwall；Non-circular guide groove located at body and
Connected by perforate with reception hole, non-circular guide groove have axially vertical hole axle to and drum axially.Grip slipper is arranged at pedestal, and
Grip slipper includes setting unit and base shank, and setting unit is set for cutter group, and base shank is connected with setting unit, and base shank is received to insert
Receive hole, and base shank includes body and at least one location division, handle body is located in reception hole, and at least one location division is recessed in handle
Body and position is corresponding with perforate.And spacing group be arranged at non-circular guide groove, and spacing group includes clamp holder and bolt, clamp holder
Non-circular guide groove is located in, bolt passes through clamp holder；Wherein, swivel bolt can make clamp holder axially displaced to support to perforate
Location division, so that clamp holder packing handle body.
According to foregoing cutter holding device, wherein the cross sectional shape of non-circular guide groove is in ellipse, and clamp holder is in ellipse
Rod structure.Or reception hole includes and inside contracts section, base shank also coordinates comprising cone section inside contracts section.Or setting unit includes chimeric section connection handle
Body, reception hole includes round mouth connection external environment, and pedestal is also recessed comprising positioning, and it is arranged at body, and positions recessed comprising chimeric
Groove, its shape is correspondingly fitted together to section, and embeded slot includes bottom wall, wherein, round mouth is located at bottom wall, and handle body inserts reception hole by round mouth
Afterwards, chimeric section is embedded in embeded slot.
Compared with prior art, the utility model has the advantages that：Cutter holding device of the present utility model, lead to
Cross reception hole, non-circular guide groove and spacing group of structure to configure, can allow the easy assembly and disassembly of both grip slipper and pedestal, and
And maintain laser intensity；Clamp holder is limited to the noncircular cross section of non-circular guide groove and can not rotated, so it can be by bolt control
The axially displaced base shank with packing grip slipper is made, and reaches simple in construction and group sets easy purpose, while the knot of pedestal
Structure is simple and can maintain the integrality of structure, and then increases the intensity of pedestal.
Brief description of the drawings
Fig. 1 illustrates a kind of schematic perspective view of cutter holding device according to the embodiment of the utility model one；
Fig. 2 illustrates the decomposing schematic representation of Fig. 1 cutter holding device；
Fig. 3 illustrates diagrammatic cross-section of Fig. 1 cutter holding device along face line 3-3；
Fig. 4 illustrates diagrammatic cross-section of Fig. 3 cutter holding device along face line 4-4；
Fig. 5 illustrates diagrammatic cross-section of Fig. 3 cutter holding device along face line 5-5；
Fig. 6 illustrates a kind of diagrammatic cross-section of cutter holding device according to another embodiment of the utility model；And
Fig. 7 illustrates a kind of application schematic diagram of cutter holding device according to the utility model a further embodiment.
Embodiment
It the following drawings illustrate embodiment of the present utility model.As clearly stated, the details in many practices
It will be explained in the following description.However, reader is not it will be understood that the details in these practices is applied to limit this practicality
It is new.That is, in the utility model section Example, the details in these practices is non-essential.In addition, to simplify
For the sake of accompanying drawing, some existing usual structures will be illustrated in a manner of simply illustrating in the accompanying drawings with element；And the member repeated
Part will likely use be identically numbered expression.
Refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5.Wherein Fig. 1 illustrates one kind according to the embodiment of the utility model one
The schematic perspective view of cutter holding device 100, Fig. 2 illustrate the decomposing schematic representation of Fig. 1 cutter holding device 100, and Fig. 3 illustrates figure
Diagrammatic cross-section of 1 cutter holding device 100 along face line 3-3, Fig. 4 illustrate Fig. 3 cutter holding device 100 along face line
4-4 diagrammatic cross-section, Fig. 5 illustrate diagrammatic cross-section of Fig. 3 cutter holding device 100 along face line 5-5.Cutter holding fills
100 are put to clamp cutter and comprising pedestal 200, grip slipper 300 and spacing group 400.
Pedestal 200 includes body 210, reception hole 220 and non-circular guide groove 230, reception hole 220 be arranged at body 210 and
Comprising inwall 221 and perforate 222, perforate 222 is located on inwall 221；Non-circular guide groove 230 is located at body 210 and passes through perforate
222 connect with reception hole 220, and non-circular guide groove 230 has axial I1.Grip slipper 300 is arranged at pedestal 200 and comprising setting
Portion 310 and base shank 320, setting unit 310 are set for cutter group, and base shank 320 connects setting unit 310, and base shank 320 is inserting
Reception hole 220 and comprising handle body 322 and at least one location division 321, handle body 322 is located in reception hole 220, and location division 321 is recessed
Located at handle body 322 and position it is corresponding with perforate 222.Be arranged at non-circular guide groove 230 for spacing group 400 and comprising clamp holder 420 and
Bolt 410, clamp holder 420 are located in non-circular guide groove 230, the section of the cross sectional shape of clamp holder 420 and non-circular guide groove 230
Shape is corresponding, and bolt 410 passes through clamp holder 420；Wherein swivel bolt 410 can make clamp holder 420 I1 is moved to out vertically
Location division 321 is supported in hole 222, so that the packing handle body 322 of clamp holder 420.
Whereby, the rotation of the noncircular cross section limitation clamp holder 420 of non-circular guide groove 230, after making it be driven by bolt 410
Can I1 displacements vertically with packing base shank 320, therefore can reach simple in construction and group sets easy purpose；Pedestal simultaneously
200 structure simply enables the integrality of structure be maintained, and is with the increase of the intensity of pedestal 200, and when can also resist use
Reaction force.The CONSTRUCTED SPECIFICATION of cutter holding device 100 will be described in greater detail below.
Reception hole 220 and non-circular guide groove 230 are all the hole for being opened in body 210, reception hole 220 and non-circular guide groove
230 both are staggered and have connected component.That is, the perforate 222 on the inwall 221 of reception hole 220 is simultaneously and not rounded
Perforate on the inwall of shape guide groove 230, and reception hole 220 and non-circular guide groove 230 are interconnected.
Grip slipper 300 is by the way that base shank 320 is inserted in reception hole 220 to be mounted on pedestal 200, in order that folder
The group for holding seat 300 and pedestal 200 sets more firm, and the setting unit 310 of grip slipper 300 can be made to include the chimeric linker shank of section 311
320, reception hole 220 includes round mouth 223 and connects external environment, and pedestal 200 is also arranged at this comprising positioning recessed 240, positioning recessed 240
Body 210 and section 311 is correspondingly fitted together to comprising the shape of embeded slot 241, and embeded slot 241 includes bottom wall 2411, and wherein round mouth 223 is located at
Bottom wall 2411, after handle body 322 inserts reception hole 220 by round mouth 223, chimeric section 311 is embedded in embeded slot 241；In addition, setting unit
310 can be also comprising multiple composition surfaces 312 around connected embedding section 311, and position recessed 240 and also surround comprising multiple locating surfaces 242
Embeded slot 241 and corresponding with composition surface 312.
In more detail, embeded slot 241 is to be depressed in body 210 and general rectangular shallow slot structure, multiple locating surfaces 242
Indent is formed in the positioning of body 210 recessed 240 with embeded slot 241 around embeded slot 241, because round mouth 223 is located at embeded slot
241 bottom wall 2411, be with when the handle body 322 of grip slipper 300 via round mouth 223 enter reception hole 220 after, setting unit 310
Chimeric section 311, which can be installed with, is limited in embeded slot 241, while allows the composition surface 312 and Xiang Hu Arrived of locating surface 242 tops to coordinate.
In the present embodiment, each composition surface 312 and the shape of each locating surface 242 correspond to each other, and multiple composition surfaces 312 are rings
Shape is distributed in chimeric section 311, and multiple locating surfaces 242 and annular distribution are in embeded slot 241, so when each composition surface 312 and respectively
After locating surface 242 is corresponding, self-centering function can be provided to avoid handle body 322 eccentric with reception hole 220, there is provided enough branch
Support force is to increase the stability of cutter when in use.
Clamp holder 420 includes the screw thread couple of screw 425, screw 425 and bolt 410, and due to non-circular guide groove 230
Non-circular shape can cause clamp holder 420 to be restricted in the rotation of non-circular guide groove 230, therefore when bolt 410 rotates, packing
Block 420 can not follow rotation and be forced along axial I1 movements.So when the base shank 320 of grip slipper 300 inserts reception hole 220
Afterwards, location division 321 can correspond exactly to the position of perforate 222, and now rotating bolt 410 allows clamp holder 420 to be displaced to perforate
222 position, location division 321 can be caught in, and cause base shank 320 can not be pulled out reception hole 220.
The cross sectional shape of non-circular guide groove 230 can be in generally ellipse, and clamp holder 420 is in oval rod structure.When clamp holder 420
When being oval rod structure, smoothness when can increase it I1 being moved vertically, while can avoid any position stress concentration and
Increase service life, but in other embodiments, the section of non-circular guide groove 230 can also be any non-round shape, such as
It is triangle, square, rectangle or polygon, comprising above-mentioned but be not limited.
The clamp holder 420 of the present embodiment also includes first end face 421, second end face 422, rank portion 424 and inclined-plane 423, the
Biend 422 is relative with first end face 421, and rank portion 424 connects first end face 421, and inclined-plane 423 is connected to rank portion 424 and second
Between end face 422.And location division 321 is the depressed part on handle body 322, location division 321 can include support surface 3211, support surface
3211 from the opposite side of the oblique handle body 322 in the side of handle body 322, and support surface 3211 is supported by inclined-plane 423.That is, support
The gradient and incline direction of top surface 3211 coordinate gradient and the direction on the inclined-plane 423 of clamp holder 420, therefore clamp holder 420 is vertically
, can gradual packing location division 321 when I1 is moved up.
Referring to Fig. 6, wherein Fig. 6 illustrates a kind of cutter holding device 100a according to another embodiment of the utility model
Diagrammatic cross-section.Cutter holding device 100a is similar with the cutter holding device 100 described in Fig. 1 to Fig. 5, but reception hole 220a
Comprising a section 224a is inside contracted, grip slipper 300a base shank 320a also coordinates comprising cone section 323a inside contracts a section 224a.As shown in fig. 6,
Reception hole 220a is formed towards the gradual narrow contracting in end and is inside contracted a section 224a, and base shank 320a handle body 322a meat thickness is also gradual towards end
Inside contract and form cone section 323a, by inside contracting section 224a and boring section 323a setting, grip slipper 300a base shank can be allowed
320a is easier to insert in reception hole 220a, and the cooperation bored section 323a and inside contract section 224a can also have self-centering effect
Fruit.
Referring to Fig. 7, wherein Fig. 7 illustrates a kind of cutter holding device 100b according to the utility model a further embodiment
Application schematic diagram.Cutter holding device 100b is arranged at the milling and planing drum 500b of road milling machine, cutter holding device 100b's
Structure is identical with Fig. 1 to Fig. 5 cutter holding device 100, and wherein pedestal 200b reception hole 220b has hole axle to I2 (x-axis
Direction) vertical milling and planing drum rouses axially (vertical paper, z-axis direction), rather than circular guide 230b has axial I1 (y-axis direction)
Upright opening axial direction I2 and drum are axially.Whereby, when the cutter N clamped by cutter holding device 100b will be changed, can directly grasp
Make spacing group and release grip slipper 300b, will not be interfered by other cutter holding devices, increase operation convenience.
Although the utility model is disclosed as above with embodiment, so it is not limited to the utility model, any
Those skilled in the art, do not departing from spirit and scope of the present utility model, when various variations and retouching, therefore this reality can be made
Worked as with new protection domain and be defined depending on as defined in claim.
Claims (10)
1. a kind of cutter holding device, to clamp cutter, it is characterised in that the cutter holding device includes：
Pedestal, it is included：
Body；
Reception hole, it is arranged at the body, and the reception hole includes：
Inwall；And
Perforate, it is located on the inwall；And
Non-circular guide groove, it with the reception hole is connected located at the body and by the perforate, the non-circular guide groove tool
There is axial direction；
Grip slipper, it is arranged at the pedestal, and the grip slipper includes：
Setting unit, it sets for the cutter group；And
Base shank, it is connected with the setting unit, and the base shank is to insert the reception hole, and the base shank includes：
Handle body, it is located in the reception hole；And
At least one location division, its it is recessed in the handle body and position it is corresponding with the perforate；And
Spacing group, it is arranged at the non-circular guide groove, and described spacing group includes：
Clamp holder, it is located in the non-circular guide groove, and section of the cross sectional shape of the clamp holder and the non-circular guide groove
Face shape is corresponding；And
Bolt, it passes through the clamp holder；
Wherein, rotating the bolt can make the clamp holder support the location division along the axial displacement to the perforate,
So that handle body described in the clamp holder packing.
2. cutter holding device as claimed in claim 1, it is characterised in that the cross sectional shape of the non-circular guide groove is in ellipse
Circle, and the clamp holder is in oval rod structure.
3. cutter holding device as claimed in claim 2, it is characterised in that the clamp holder includes：
First end face；
Second end face, it is relative with the first end face；
Rank portion, it is connected with the first end face；And
Inclined-plane, it is connected between the rank portion and the second end face.
4. cutter holding device as claimed in claim 3, it is characterised in that the location division includes support surface, described to support
Face is from the opposite side of the oblique handle body in the side of the handle body, and the support surface is supported by the inclined-plane.
5. cutter holding device as claimed in claim 1, it is characterised in that the setting unit includes chimeric section and connects the handle
Body, the reception hole includes round mouth connection external environment, and the pedestal also includes：
Position recessed, it is arranged at the body, and the positioning is recessed includes：
Embeded slot, its shape corresponds to the chimeric section, and the embeded slot includes bottom wall；
Wherein, the round mouth is located at the bottom wall, and after the handle body inserts the reception hole by the round mouth, the chimeric section is embedding
Together in the embeded slot.
6. cutter holding device as claimed in claim 5, it is characterised in that the setting unit also includes multiple composition surfaces, its
Around connecting the chimeric section, and the positioning is recessed also includes：
Multiple locating surfaces, it surround the embeded slot, and corresponding with the multiple composition surface.
7. a kind of cutter holding device, to clamp cutter, the cutter holding device is arranged at the milling and planing drum of road milling machine,
Characterized in that, the cutter holding device includes：
Pedestal, it is arranged at the surface of the milling and planing drum, and the pedestal includes：
Body；
Reception hole, it is located at the body, and the reception hole has the drum of the axially vertical milling and planing drum in hole axially, the receipts
Receiving hole includes：
Inwall；And
Perforate, it is located on the inwall；And
Non-circular guide groove, it with the reception hole is connected located at the body and by the perforate, the non-circular guide groove tool
Have the axially vertical hole axle to and it is described drum axially；
Grip slipper, it is arranged at the pedestal, and the grip slipper includes：
Setting unit, it sets for the cutter group；And
Base shank, it is connected with the setting unit, and the base shank is to insert the reception hole, and the base shank includes：
Handle body, it is located in the reception hole；And
At least one location division, its it is recessed in the handle body and position it is corresponding with the perforate；And
Spacing group, it is arranged at the non-circular guide groove, and described spacing group includes：
Clamp holder, it is located in the non-circular guide groove；And
Bolt, it passes through the clamp holder；
Wherein, rotating the bolt can make the clamp holder support the location division along the axial displacement to the perforate,
So that handle body described in the clamp holder packing.
8. cutter holding device as claimed in claim 7, it is characterised in that the cross sectional shape of the non-circular guide groove is in ellipse
Circle, and the clamp holder is in oval rod structure.
9. cutter holding device as claimed in claim 8, it is characterised in that the reception hole includes and inside contracts section, the base handle
Portion also includes and inside contracts section described in cone section cooperation.
10. cutter holding device as claimed in claim 7, it is characterised in that the setting unit is included described in chimeric section connection
Handle body, the reception hole includes round mouth connection external environment, and the pedestal also includes：
Position recessed, it is arranged at the body, and the positioning is recessed includes：
Embeded slot, its shape corresponds to the chimeric section, and the embeded slot includes bottom wall；
Wherein, the round mouth is located at the bottom wall, and after the handle body inserts the reception hole by the round mouth, the chimeric section is embedding
Together in the embeded slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720921808.2U CN207079453U (en) | 2017-07-27 | 2017-07-27 | Cutter holding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720921808.2U CN207079453U (en) | 2017-07-27 | 2017-07-27 | Cutter holding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207079453U true CN207079453U (en) | 2018-03-09 |
Family
ID=61424632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720921808.2U Active CN207079453U (en) | 2017-07-27 | 2017-07-27 | Cutter holding device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207079453U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3434433A1 (en) * | 2017-07-27 | 2019-01-30 | Everpads Co., Ltd. | Cutting tool holding device |
| CN110924284A (en) * | 2019-12-17 | 2020-03-27 | 苏州五元素机械制造有限公司 | Cutting device for quick-change tool holders |
| CN110983927A (en) * | 2019-12-17 | 2020-04-10 | 苏州五元素机械制造有限公司 | Cutting device with fastening means |
-
2017
- 2017-07-27 CN CN201720921808.2U patent/CN207079453U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3434433A1 (en) * | 2017-07-27 | 2019-01-30 | Everpads Co., Ltd. | Cutting tool holding device |
| CN110924284A (en) * | 2019-12-17 | 2020-03-27 | 苏州五元素机械制造有限公司 | Cutting device for quick-change tool holders |
| CN110983927A (en) * | 2019-12-17 | 2020-04-10 | 苏州五元素机械制造有限公司 | Cutting device with fastening means |
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