CN112975436A - Angular pneumatic chamfering machine - Google Patents
Angular pneumatic chamfering machine Download PDFInfo
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- CN112975436A CN112975436A CN202110486569.3A CN202110486569A CN112975436A CN 112975436 A CN112975436 A CN 112975436A CN 202110486569 A CN202110486569 A CN 202110486569A CN 112975436 A CN112975436 A CN 112975436A
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- cutter
- angular
- chamfering machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
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- Optics & Photonics (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a straight pneumatic chamfering machine, which relates to the technical field of chamfering machines, and can chamfer and deburr the straight edge or arc edge of a workpiece according to the requirement, and the machining precision is greatly improved by arranging a guide plate.
Description
Technical Field
The invention relates to the technical field of chamfering machines, in particular to a straight pneumatic chamfering machine.
Background
In the production and manufacturing process of metal workpieces, a large amount of burrs are often left at edges of corners or holes of the workpieces, and chamfering operation needs to be carried out on the edges of the workpieces; the comparatively heavy straight cylinder type chamfering equipment of the general adoption carries out the chamfer among the prior art, and its defect lies in: because the central axis of the straight-barrel type chamfering equipment is generally vertical to the upper end surface of the workpiece, when people hold the equipment by hands to push along the upper end surface of the workpiece, the applied thrust direction is almost parallel to the advancing direction of the equipment, so that the chamfering equipment is easy to incline during working, and the processing quality is influenced.
Disclosure of Invention
The invention aims to provide an angular pneumatic chamfering machine, which further improves the processing quality.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an angular pneumatic chamfering machine comprises a rotating mechanism, an angular sleeve, a transmission assembly, a cutter bar, a cutter head and a guide plate;
the angle sleeve is screwed on the shell of the rotating mechanism, the cutter bar is located in the angle sleeve, the rotating mechanism drives the cutter bar to rotate through the transmission assembly, the central shaft of the cutter bar is not parallel to the output shaft of the rotating mechanism, the cutter head is fixedly arranged on the cutter bar, the guide plate is fixed on the angle sleeve, the cutter head is provided with a cutting edge, and the cutting edge is matched with the guide plate.
Further, the device also comprises an inner sleeve, and the inner sleeve is mutually screwed with the angular sleeve.
Further, still include the lantern ring, the lantern ring overlaps on the inner skleeve, the deflector includes guiding part and go-between, go-between and guiding part integrated into one piece, the one end that rotary mechanism was kept away from to the sleeve including the go-between spiral shell thread closes.
Furthermore, the periphery of the connecting ring is provided with scale values around, the lantern ring is provided with arrows, and the arrows point to the scale values.
Further, the transmission assembly comprises a first bevel gear and a second bevel gear, the first bevel gear and the second bevel gear are meshed with each other, the first bevel gear is fixed on an output shaft of the rotating mechanism, and the second bevel gear is fixed on the cutter bar.
Furthermore, the cutter head is square, the four peripheries of the cutter head are provided with cutting edges, and the two groups of cutter heads are fixedly arranged on the cutter bar in a circumferential array.
Furthermore, the guide part comprises a first guide plate and a second guide plate, the first guide plate and the second guide plate are integrally formed and are perpendicular to each other, a first grinding hole is formed between the first guide plate and the second guide plate, and a cutting edge on the cutter head obliquely penetrates through the first grinding hole and is located between the first guide plate and the second guide plate.
Furthermore, a connection part between the first guide plate and the second guide plate is also provided with a back-off groove.
Furthermore, a second grinding hole which is circular is formed in the middle of the guide portion, and a cutting edge on the cutter head penetrates through the second grinding hole in an inclined mode.
Furthermore, one end of the cutter bar, which is far away from the rotating mechanism, is also pivoted with a guide wheel, and the guide wheel is matched with the guide plate.
The invention has the beneficial effects that: the rotating mechanism drives the cutter bar to rotate through the transmission assembly, the cutter bar drives the cutter head to rotate, when burrs of a workpiece are scraped, the rotating mechanism is held and pushed by a hand, the guide plate slides along the upper end face of the workpiece, and the cutter head is guided, so that the burrs on the edge of the workpiece are easily scraped by using the rotating cutter edge; because the central shaft of the cutter bar is not parallel to the output shaft of the rotating mechanism, namely a certain angle is formed between the central shaft and the output shaft, when the cutter bar is in work, the cutter bar is perpendicular to the upper end surface of a workpiece to be processed, and the rotating mechanism and the upper end surface of the workpiece form a certain included angle, a worker holds the rotating mechanism and pushes the rotating mechanism, the direction of applied thrust and the advancing direction of the cutter bar keep a certain angle, and the obliquely applied thrust makes the equipment advance more stably and is not easy to incline.
Drawings
FIG. 1 is a schematic overall structure diagram of the first embodiment;
FIG. 2 is a partial sectional view of the first embodiment;
FIG. 3 is an exploded view of the overall structure of the first embodiment;
FIG. 4 is a schematic structural view of a guide plate according to the first embodiment;
FIG. 5 is a schematic structural diagram of a rotating mechanism, a transmission assembly and a cutter bar according to the first embodiment;
FIG. 6 is a partial schematic structural view of the first embodiment;
FIG. 7 is a schematic view of a tool tip according to the first or second embodiment;
FIG. 8 is a schematic view showing the overall structure of the second embodiment;
FIG. 9 is a sectional view of a part of the structure of the second embodiment;
FIG. 10 is an exploded view of the overall structure of the second embodiment;
FIG. 11 is a schematic partial structural view of the second embodiment;
fig. 12 is a schematic structural view of a rotating mechanism, a transmission assembly and a cutter bar of the second embodiment;
fig. 13 is a schematic structural view of a guide plate according to the second embodiment.
The reference signs are:
a rotating mechanism 1, an angular sleeve 2, an inner sleeve 3,
the transmission assembly 4, the first bevel gear 41, the second bevel gear 42,
a cutter bar 5, a bearing 51, a guide post 52, a guide wheel 53, a locknut 54,
the cutting head 6, the cutting edge 61,
the position of the collar 7, the arrow 71,
the guide plate 8, the guide part 81, the first guide plate 811, the second guide plate 812, the first grinding hole 813, the relief groove 814, the second grinding hole 815, the connecting ring 82 and the scale 821.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Example one
The angular pneumatic chamfering machine shown in fig. 1 to 7 comprises a rotating mechanism 1, an angular sleeve 2, an inner sleeve 3, a transmission assembly 4, a cutter bar 5, a cutter head 6, a sleeve ring 7 and a guide plate 8.
In the embodiment, the rotating mechanism 1 is preferably a rotating cylinder, the advantages of small volume and high rotating speed of the rotating cylinder are fully utilized, and compared with an electric chamfering machine in the traditional technology, the volume and the weight of the chamfering machine are greatly reduced.
The rotating mechanism 1 introduced by the invention has the advantages that the diameter of the machine body is only 18mm, the size design is small and exquisite, the rotating speed reaches 50000rpm, the chamfering is light and fast, the smoothness is good, and the working efficiency is greatly improved.
The angular sleeve 2 is screwed on the outer shell of the rotating mechanism 1, the inner sleeve 3 is screwed with the angular sleeve 2, the knife bar 5 is located in the angular sleeve 2, the knife bar 5 is pivoted inside the angular sleeve 2 through a bearing 51, the rotating mechanism 1 drives the knife bar 5 to rotate through the transmission component 4, and the central axis of the knife bar 5 is not parallel to the output axis of the rotating mechanism 1, i.e. a certain angle is formed between the two, it is specifically mentioned that other angles are changed through the angular sleeve 2, which is also within the protection scope of the present invention, such as 90 degrees, 100 degrees, 135 degrees, in the present embodiment, the included angle between the two is preferably one hundred twenty degrees, the knife head 6 is fixedly arranged on the knife bar 5, because the central axis of the knife bar 5 is not parallel to the output axis of the rotating mechanism 1, during operation, the knife bar 5 is processed perpendicular to the upper end face of the workpiece, and the rotating, workers hold the rotating mechanism 1 by hands and push the mechanism, the direction of the applied thrust keeps an angle of one hundred twenty degrees with the advancing direction of the mechanism, the obliquely applied thrust enables the mechanism to advance more stably and is not easy to incline, and compared with the prior art, the mechanism further improves the processing quality.
The transmission assembly 4 comprises a first bevel gear 41 and a second bevel gear 42, the first bevel gear 41 and the second bevel gear 42 are engaged with each other, the first bevel gear 41 is fixed on an output shaft of the rotation mechanism 1, the second bevel gear 42 is fixed on the cutter bar 5, the rotation mechanism 1 drives the first bevel gear 41 to rotate, the first bevel gear 41 and the second bevel gear 42 perform transmission, and the second bevel gear 42 drives the cutter bar 5 to rotate.
The sleeve ring 7 is sleeved on the inner sleeve 3, the guide plate 8 comprises a guide part 81 and a connecting ring 82, the connecting ring 82 and the guide part 81 are integrally formed, and the connecting ring 82 is screwed at one end of the inner sleeve 3 far away from the rotating mechanism 1.
The cutting head 6 is provided with a cutting edge 61, the cutting edge 61 is matched with the guide plate 8, the guide part 81 comprises a first guide plate 811 and a second guide plate 812, the first guide plate 811 and the second guide plate 812 are integrally formed and are perpendicular to each other, a first grinding hole 813 is formed between the first guide plate 811 and the second guide plate 812, one cutting edge 61 on the cutting head 6 obliquely penetrates through the first grinding hole 813, the cutting edge 61 is located between the first guide plate 811 and the second guide plate 812, in the embodiment, a forty-five degree angle is formed between the cutting edge 61 and the first guide plate 811, a forty-five degree angle is also formed between the cutting edge 61 and the second guide plate 812, and when the cutting edge 61 works, a forty-five degree chamfer can be led out to the edge of a workpiece.
The joint between the first guide plate 811 and the second guide plate 812 is further provided with a receding groove 814, and the receding groove 814 is used for the edge of the workpiece to extend into, so that chamfering operation is facilitated.
The structure of the guide plate 8 in this embodiment is suitable for deburring and chamfering a workpiece whose edge is linear and whose two end faces are perpendicular, and when the guide plate is in operation, the first guide plate 811 and the second guide plate 812 are respectively attached to two faces of the workpiece, so that the edge of the workpiece is located in the receding groove 814, and the cutter bar 5 drives the cutter head 6 to rotate, thereby performing deburring operation on the edge of the workpiece and simultaneously guiding out a chamfer of forty-five degrees.
In the prior art, a guide wheel is matched with a rotating cutter head 6 to chamfer a workpiece, and the defect that the guide wheel is easy to wear, so that the guide wheel needs to be replaced again to normally work, and the equipment cost is increased; by adopting the mutual matching structure of the first guide plate 811 and the second guide plate 812 in the embodiment, the guide wheels are not consumed, so that the production cost can be reduced, and the working efficiency can be improved.
The cutter head 6 is made of hard alloy, the cutter head 6 is square, and the four peripheries of the cutter head 6 are all provided with cutting edges 61, namely as shown in fig. 7, the cutting edges 61 are respectively arranged on the upper side, the lower side, the left side and the right side of the cutter head 6, the cutter head 6 is fixedly connected to the cutter bar 5 through screws, the design has the effect that when one cutting edge 61 is worn and discarded, the cutter head 6 can be detached, rotated and reassembled, and the adjacent other cutting edge 61 is used, so that the production cost can be greatly reduced; it should be noted that other numbers of blades 61 on the cutting head 6 are also within the scope of the present invention, such as three, five, six or other numbers of blades 61 on the cutting head 6.
The quantity of tool bit 6 can design a plurality of groups as required, in this embodiment, because of the consideration to equipment cost and the quality of polishing, the preferred two sets of tool bits 6 that set up, two sets of mutual symmetries of tool bit 6 set up, and two sets of tool bits 6 are fixed the setting on cutter arbor 5 of circumference array, and cutter arbor 5 rotates and drives two sets of tool bits 6 rotatoryly, the better chamfer operation to the work piece that carries on.
The periphery of the connecting ring 82 is provided with scale values 821, the collar 7 is provided with an arrow 71, the arrow 71 points to the scale values 821, namely the collar 7 is matched with the connecting ring 82 for use, the connecting ring 82 is rotated to change the distance between the guide plate 8 and the inner sleeve 3, further the depth of the cutter head 6 penetrating through the first grinding hole 813 is changed, further the radius of the chamfer is changed, meanwhile, the arrow 71 points to the corresponding scale value 821, and the scale value 821 is the radius value to be chamfered.
The working principle is as follows: when chamfering a workpiece with a straight edge, firstly rotating the guide plate 8 to enable the arrow 71 to point to the corresponding scale value 821, and changing the radius of the chamfer as required, wherein in operation, the first guide plate 811 and the second guide plate 812 are respectively tightly attached to two surfaces of the workpiece, so that the edge of the workpiece is positioned in the retreat groove 814, the rotating mechanism 1 drives the cutter bar 5 to rotate through the transmission component 4, the cutter bar 5 drives the cutter head 6 to rotate, the deburring operation can be carried out on the edge of the workpiece, and meanwhile, the chamfer with forty-five degrees is led out.
Example two
An angular pneumatic chamfering machine as shown in fig. 7 to 13 comprises a rotating mechanism 1, an angular sleeve 2, an inner sleeve 3, a transmission assembly 4, a cutter bar 5, a cutter head 6, a sleeve ring 7 and a guide plate 8.
In the embodiment, the rotating mechanism 1 is preferably a rotating cylinder, the advantages of small volume and high rotating speed of the rotating cylinder are fully utilized, and compared with an electric chamfering machine in the traditional technology, the volume and the weight of the chamfering machine are greatly reduced.
The rotating mechanism 1 introduced by the invention has the advantages that the diameter of the machine body is only 18mm, the size design is small and exquisite, the rotating speed reaches 50000rpm, the chamfering is light and fast, the smoothness is good, and the working efficiency is greatly improved.
The angular sleeve 2 is screwed on the outer shell of the rotating mechanism 1, the inner sleeve 3 is screwed with the angular sleeve 2, the knife bar 5 is located in the angular sleeve 2, the knife bar 5 is pivoted inside the angular sleeve 2 through a bearing 51, the rotating mechanism 1 drives the knife bar 5 to rotate through the transmission component 4, and the central axis of the knife bar 5 is not parallel to the output axis of the rotating mechanism 1, i.e. a certain angle is formed between the two, it is specifically mentioned that other angles are changed through the angular sleeve 2, which is also within the protection scope of the present invention, such as 90 degrees, 100 degrees, 135 degrees, in the present embodiment, the included angle between the two is preferably one hundred twenty degrees, the knife head 6 is fixedly arranged on the knife bar 5, because the central axis of the knife bar 5 is not parallel to the output axis of the rotating mechanism 1, during operation, the knife bar 5 is processed perpendicular to the upper end face of the workpiece, and the rotating, workers hold the rotating mechanism 1 by hands and push the mechanism, the direction of the applied thrust keeps an angle of one hundred twenty degrees with the advancing direction of the mechanism, the obliquely applied thrust enables the equipment to advance more stably and is not easy to incline, and compared with the prior art, the mechanism further improves the processing quality.
The transmission assembly 4 comprises a first bevel gear 41 and a second bevel gear 42, the first bevel gear 41 and the second bevel gear 42 are engaged with each other, the first bevel gear 41 is fixed on an output shaft of the rotation mechanism 1, the second bevel gear 42 is fixed on the cutter bar 5, the rotation mechanism 1 drives the first bevel gear 41 to rotate, the first bevel gear 41 and the second bevel gear 42 perform transmission, and the second bevel gear 42 drives the cutter bar 5 to rotate.
The sleeve ring 7 is sleeved on the inner sleeve 3, the guide plate 8 comprises a guide part 81 and a connecting ring 82, the connecting ring 82 and the guide part 81 are integrally formed, and the connecting ring 82 is screwed at one end of the inner sleeve 3 far away from the rotating mechanism 1.
Cutting edge 61 has been seted up on tool bit 6, and cutting edge 61 and deflector 8 mutually support, and the middle part of guide part 81 is seted up and is circular shape second hole 815 of polishing, and one of them cutting edge 61 on tool bit 6 is the slope form and passes second hole 815 of polishing, and is forty-five degrees angle between this cutting edge 61 and the guide part 81.
The guide post 52 is integrally formed at one end of the cutter bar 5 far away from the rotating mechanism 1, the guide wheel 53 is pivoted on the guide post 52, the locknut 54 is fixedly screwed at one end of the guide post 52 far away from the cutter bar 5, a nylon washer for increasing friction is arranged on the inner side of the locknut 54, the locknut 54 can prevent the guide wheel 53 from falling off from the guide post 52, in the prior art, the guide wheel 53 is limited by a snap spring, and the defect is that in practical application, the snap spring is easy to fall off, so the traditional snap spring is replaced by the locknut 54 in the embodiment, and the guide wheel 53 is not easy to fall off from the guide post 52.
The guide wheel 53 is fitted to the guide plate 8, the guide portion 8171 has a disk shape, and the second grinding hole 815 is located at the center of the guide portion 81.
This embodiment is applicable to and is carried out the chamfer to the curved work piece of edge, also is applicable to and carries out the chamfer to the work piece that the edge is sharp, realizes the circle and straightens dual-purpose, and the during operation, the terminal surface of guide part 81 is pasted at a terminal surface of work piece, and leading wheel 53 then rolls along the another side of work piece, and cutter arbor 5 drives the rotation of tool bit 6, can carry out the burring operation to the edge of work piece, derives the chamfer of forty-five degrees simultaneously.
The cutter head 6 is made of hard alloy, the cutter head 6 is square, and the four peripheries of the cutter head 6 are all provided with cutting edges 61, namely as shown in fig. 7, the cutting edges 61 are respectively arranged on the upper side, the lower side, the left side and the right side of the cutter head 6, the cutter head 6 is fixedly connected to the cutter bar 5 through screws, the design has the effect that when one cutting edge 61 is worn and discarded, the cutter head 6 can be detached, rotated and reassembled, and the adjacent other cutting edge 61 is used, so that the production cost can be greatly reduced; it should be noted that other numbers of blades 61 on the cutting head 6 are also within the scope of the present invention, such as three, five, six or other numbers of blades 61 on the cutting head 6.
The quantity of tool bit 6 can design a plurality of groups as required, in this embodiment, because of the consideration to equipment cost and the quality of polishing, the preferred two sets of tool bits 6 that set up, two sets of mutual symmetries of tool bit 6 set up, and two sets of tool bits 6 are fixed the setting on cutter arbor 5 of circumference array, and cutter arbor 5 rotates and drives two sets of tool bits 6 rotatoryly, the better chamfer operation to the work piece that carries on.
The periphery of the connecting ring 82 is provided with scale values 821, the collar 7 is provided with an arrow 71, the arrow 71 points to the scale values 821, namely the collar 7 is matched with the connecting ring 82 for use, the connecting ring 82 is rotated to change the distance between the guide plate 8 and the inner sleeve 3, further the depth of the tool bit 6 passing through the second grinding hole 815 is changed, further the radius of the chamfer is changed, meanwhile, the arrow 71 points to the corresponding scale values 821, and the scale values 821 are radius values to be chamfered.
The working principle is as follows: when chamfering a workpiece with an arc edge or a workpiece with a straight edge, firstly, rotating the guide plate 8 to enable the arrow 71 to point to the corresponding scale value 821, and changing the radius of the chamfer as required, wherein during operation, the end surface of the guide part 81 is attached to one end surface of the workpiece, and the guide wheel 53 rolls along the other surface of the workpiece; the rotating mechanism 1 drives the cutter bar 5 to rotate through the transmission component 4, the cutter bar 5 drives the cutter head 6 to rotate, the edge of a workpiece can be deburred, and a chamfer angle of forty-five degrees is led out at the same time.
The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (10)
1. The utility model provides an angular pneumatic beveler, includes rotary mechanism, its characterized in that: the cutter also comprises an angular sleeve, a transmission assembly, a cutter bar, a cutter head and a guide plate;
the angle sleeve is screwed on the shell of the rotating mechanism, the cutter bar is located in the angle sleeve, the rotating mechanism drives the cutter bar to rotate through the transmission assembly, the central shaft of the cutter bar is not parallel to the output shaft of the rotating mechanism, the cutter head is fixedly arranged on the cutter bar, the guide plate is fixed on the angle sleeve, the cutter head is provided with a cutting edge, and the cutting edge is matched with the guide plate.
2. The angular pneumatic chamfering machine according to claim 1, wherein: the inner sleeve is mutually screwed with the angular sleeve.
3. The angular pneumatic chamfering machine according to claim 2, wherein: still include the lantern ring, the lantern ring overlaps on the inner skleeve, the deflector includes guide part and go-between, go-between and guide part integrated into one piece, the one end that rotary mechanism was kept away from to the sleeve including the go-between spiral shell thread closes.
4. The angular pneumatic chamfering machine according to claim 3, wherein: the periphery of the connecting ring is provided with scale values around, the lantern ring is provided with an arrow, and the arrow points to the scale values.
5. The angular pneumatic chamfering machine according to claim 1, wherein: the transmission assembly comprises a first helical gear and a second helical gear, the first helical gear is meshed with the second helical gear, the first helical gear is fixed on an output shaft of the rotating mechanism, and the second helical gear is fixed on the cutter bar.
6. The angular pneumatic chamfering machine according to claim 1, wherein: the cutter head is a square body, cutting edges are arranged on four peripheries of the cutter head, and the two cutter heads are fixedly arranged on the cutter rod in a circumferential array.
7. The angular pneumatic chamfering machine according to any one of claims 3 to 6, wherein: the guide part comprises a first guide plate and a second guide plate, the first guide plate and the second guide plate are integrally formed and are perpendicular to each other, a first grinding hole is formed between the first guide plate and the second guide plate, and a cutting edge on the cutter head obliquely penetrates through the first grinding hole and is located between the first guide plate and the second guide plate.
8. The angular pneumatic chamfering machine according to claim 7, wherein: and a back-off groove is also arranged at the joint between the first guide plate and the second guide plate.
9. The angular pneumatic chamfering machine according to any one of claims 3 to 6, wherein: a second grinding hole which is circular is formed in the middle of the guide portion, and a cutting edge on the cutter head penetrates through the second grinding hole in an inclined mode.
10. The angular pneumatic chamfering machine according to claim 9, wherein: the cutter arbor keeps away from rotary mechanism's one end still the pin joint has the leading wheel, the leading wheel is mutually supported with the deflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110486569.3A CN112975436A (en) | 2021-05-01 | 2021-05-01 | Angular pneumatic chamfering machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110486569.3A CN112975436A (en) | 2021-05-01 | 2021-05-01 | Angular pneumatic chamfering machine |
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| CN112975436A true CN112975436A (en) | 2021-06-18 |
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| CN202110486569.3A Pending CN112975436A (en) | 2021-05-01 | 2021-05-01 | Angular pneumatic chamfering machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523448A (en) * | 2021-07-26 | 2021-10-22 | 苏州蚂蚁工场科技有限公司 | Manual chamfering machine for machining rack |
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2021
- 2021-05-01 CN CN202110486569.3A patent/CN112975436A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523448A (en) * | 2021-07-26 | 2021-10-22 | 苏州蚂蚁工场科技有限公司 | Manual chamfering machine for machining rack |
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