CN219484894U - Chamfering fixing device and chamfering machine - Google Patents
Chamfering fixing device and chamfering machine Download PDFInfo
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- CN219484894U CN219484894U CN202320372837.3U CN202320372837U CN219484894U CN 219484894 U CN219484894 U CN 219484894U CN 202320372837 U CN202320372837 U CN 202320372837U CN 219484894 U CN219484894 U CN 219484894U
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- jig
- annular magnet
- clamping
- pressing plate
- fixing device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The application discloses chamfer fixing device and beveler relates to mechanical equipment technical field, wherein, chamfer fixing device includes tool spare and clamp plate, and the first surface of tool spare is formed with a plurality of standing grooves, and the standing groove is formed with the centre gripping mouth on at least one side adjacent with first surface in the tool spare, and the standing groove is used for the holding product of waiting to process; at least one first annular magnet is arranged on the side surface of the jig part, on which the clamping opening is formed; the pressing plate is arranged opposite to the side surface of the jig part, on which the clamping opening is formed, at least one second annular magnet is arranged, the second annular magnet is arranged opposite to the first annular magnet, and the magnetic poles of the second annular magnet and the opposite side of the first annular magnet are arranged in opposite directions; the clamp plate is through the magnetic attraction swing joint of first annular magnet and second annular magnet on the tool spare to be used for sealing the centre gripping mouth in order to be fixed in the standing groove with the centre gripping of waiting to process the product. The method and the device can improve the processing efficiency, improve the productivity and reduce the processing cost.
Description
Technical Field
The application relates to the technical field of mechanical equipment, in particular to a chamfering fixing device and a chamfering machine.
Background
At present, a fixing device for chamfering processing is characterized in that parts are assembled and taken by means of contour screw positioning and linear spring opening, a product to be processed is fixed through screws, so that the clamping function in the processing process is realized, the fixing device is complex to process, the contour screw positioning, the linear spring opening and the screw clamping are matched to complete the processing, the screws are loosened after the processing is completed, the screws are locked after the product to be processed is clamped, and the operation is completed outside a machine; therefore, the fixing device for chamfering can cause long waiting time of a machine tool, lower production efficiency, low productivity and higher processing cost.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a chamfer fixing device and beveler, can improve machining efficiency, improves productivity, reduces processing cost.
In a first aspect, the present application provides a chamfer fixing device, including a jig, wherein a plurality of placing grooves are formed on a first surface of the jig, and a clamping opening is formed on at least one side surface, adjacent to the first surface, of the jig, and the placing grooves are used for accommodating a product to be processed; the side surface of the jig part, on which the clamping opening is formed, is provided with at least one first annular magnet;
the pressing plate is arranged opposite to the side surface of the jig part, on which the clamping opening is formed, at least one second annular magnet is arranged, the second annular magnet is arranged opposite to the first annular magnet, and the magnetic poles of the second annular magnet and the opposite side of the first annular magnet are arranged in opposite directions; the pressing plate can be movably connected to the jig piece through the magnetic attraction of the first annular magnet and the second annular magnet, and is used for sealing the clamping opening so as to clamp and fix the product to be processed in the placing groove.
According to the chamfering fixing device of the embodiment of the first aspect of the application, at least the following beneficial effects are achieved: at least one first annular magnet is arranged on the side surface of the clamping opening formed by the jig, a pressing plate is arranged on the side surface of the clamping opening formed by the jig, at least one second annular magnet is arranged on the pressing plate, the second annular magnet is opposite to the first annular magnet, and magnetic poles of the opposite sides of the second annular magnet and the first annular magnet are opposite; the clamp plate is through the magnetic attraction swing joint of first annular magnet and second annular magnet on the tool spare to be used for sealing the centre gripping mouth in order to be fixed in the standing groove with the centre gripping of waiting to process the product. Compared with the prior art, the chamfering fixing device can realize that the product to be machined is directly loaded and taken in the machine, the chamfering fixing device does not need to be dismounted, the pressing plate can directly clamp the product to be machined through the magnetic force between the first annular magnet and the second annular magnet, the waiting time of a machine tool is reduced, the machining efficiency is improved, the productivity is improved, and the machining cost is reduced.
According to some embodiments of the first aspect of the present application, the placement grooves are provided with a plurality of groups, and each group of placement grooves is provided corresponding to a different edge of the first surface, the pressing plate is provided with a plurality of groups, and each pressing plate is provided corresponding to a group of placement grooves.
According to some embodiments of the first aspect of the present application, one of the jig member and the pressing plate is provided with a guide member, and the other is provided with a guide hole matched with the guide member.
According to some embodiments of the first aspect of the present application, one end of the guide member is fixedly disposed in the middle of the first ring magnet, and the central hole of the second ring magnet forms the guide hole.
According to some embodiments of the first aspect of the present application, a first mounting groove is formed on the jig, the first mounting groove is formed on a side surface of the jig opposite to the pressing plate, the number of the first mounting grooves is the same as that of the first ring magnets, and each of the first ring magnets is correspondingly accommodated in one of the first mounting grooves.
According to some embodiments of the first aspect of the present application, a second mounting groove is formed on the pressing plate, the number of the second mounting grooves and the number of the second ring magnets on each pressing plate are the same, and each second ring magnet is correspondingly accommodated in one second mounting groove.
According to some embodiments of the first aspect of the present application, the chamfer fixing device further comprises a support base, and the jig member is detachably connected to the support base.
According to some embodiments of the first aspect of the present application, a clamping mechanism is disposed on the support base, and the clamping mechanism is used for clamping and fixing the fixture on the support base.
According to some embodiments of the first aspect of the present application, the clamping mechanism includes a clamping cylinder and a pressure fastener, the clamping cylinder is disposed on one side of the jig, the driving end of the pressure fastener is connected to the clamping cylinder, the clamping end of the pressure fastener extends to above the jig, and the clamping cylinder is used for driving the pressure fastener so that the clamping end approaches and clamps the jig, or so that the clamping end is far away from and loosens the jig.
In a second aspect, the present application provides a chamfer fixture comprising a chamfer fixture as described in the first aspect above.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
Additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a reverse partial explosion of a chamfer fixture provided in an embodiment of the present application;
FIG. 2 is a schematic structural view of a platen according to an embodiment of the present application;
FIG. 3 is a front view of a chamfer fixture provided by an embodiment of the present application;
fig. 4 is a top view of a chamfer fixing device provided in an embodiment of the present application.
Reference numerals:
a chamfer fixing device 100;
the jig 110, the first mounting groove 111, the product to be processed 112, the first ring magnet 113 and the guide 114;
a pressing plate 120, a second mounting groove 121, and a second ring magnet 122;
the support base 130, the clamping cylinder 131, the pressure fastener 132, the first support plate 133, the second support plate 134, and the third support plate 135.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that references to orientation descriptions, such as directions of up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical solution.
At present, a fixing device for chamfering processing is characterized in that parts are assembled and taken by means of contour screw positioning and linear spring opening, a product to be processed is fixed through screws, so that the clamping function in the processing process is realized, the fixing device is complex to process, the contour screw positioning, the linear spring opening and the screw clamping are matched to complete the processing, the screws are loosened after the processing is completed, the screws are locked after the product to be processed is clamped, and the operation is completed outside a machine; therefore, the fixing device for chamfering can cause long waiting time of a machine tool, lower production efficiency, low productivity and higher processing cost.
In order to solve the above-mentioned problems, the present application provides a chamfering fixing device 100 and a chamfering machine, and the following description further describes the embodiments of the present application with reference to the accompanying drawings.
1-2, the present application provides a chamfer fixing device 100, including a jig 110 and a pressing plate 120, wherein a plurality of placing grooves are formed on a first surface of the jig 110, and a clamping opening is formed on at least one side surface of the jig 110 adjacent to the first surface, and the placing grooves are used for accommodating a product 112 to be processed; the side surface of the jig member 110, on which the clamping opening is formed, is provided with at least one first ring magnet 113; the pressing plate is arranged on the side surface of the pressing plate 120, which is opposite to the clamping opening formed by the jig 110, at least one second annular magnet 122 is arranged on the pressing plate 120, the second annular magnet 122 is opposite to the first annular magnet 113, and the magnetic poles of the second annular magnet 122 and the opposite side of the first annular magnet 113 are reversely arranged; the pressing plate 120 is movably connected to the fixture 110 by the magnetic attraction force of the first ring magnet 113 and the second ring magnet 122, and is used for closing the clamping opening to clamp and fix the product 112 to be processed in the placing groove.
This application can realize that the built-in direct dress is got and is waited to process product 112, and chamfer fixing device 100 need not to get off the machine, and clamp plate 120 can directly be through the magnetic force between first ring magnet 113 and the second ring magnet 122 tightly to wait to process product 112, reduces the beveler latency, improves machining efficiency, improves the productivity, reduces the processing cost.
It should be noted that, each placement groove is communicated with the side wall of the jig 110, which is close to the side of the pressing plate 120, so that the pressing plate 120 can abut against the product 112 to be processed and is accommodated in the placement groove, clamp the product 112 to be processed, and then chamfer or chamfer the product 112 to be processed by using a chamfering machine.
It should be noted that, after the product 112 to be processed is placed in the placement groove, the pressing plate 120 is grasped and the side of the pressing plate 120 provided with the second ring magnet 122 is pushed toward the side of the jig 110 provided with the first ring magnet, and the pressing plate 120 is mounted on the jig 110 by means of the magnetic force of opposite magnetic poles attracting between the first ring magnet 113 and the second ring magnet 122 and clamps the product 112 to be processed near the side of the pressing plate 120, so that chamfering processing is performed on the product 112 to be processed later.
Referring to fig. 4, it can be understood that the placement grooves are provided with a plurality of groups, each group of placement grooves is provided corresponding to a different edge of the first surface, the pressing plates 120 are provided with a plurality of groups, and each pressing plate 120 is provided corresponding to one group of placement grooves.
In some embodiments, two pressing plates 120 are provided, and the two pressing plates 120 are respectively disposed at two opposite sides of the jig 110, and the number of the second ring magnets 122 and the second mounting grooves 121 corresponds to the number of the pressing plates 120.
For example, 3 specially-made first ring magnets 113 with the dimensions of D10cm multiplied by 5.0cm multiplied by 5cm are respectively arranged on the front side and the rear side of the jig 110, the inner holes of the first ring magnets 113 are tightly matched with the guide members 114 with the dimensions of D5cm multiplied by 10cm multiplied by 5cm for guiding and positioning, 3 second ring magnets 122 with the dimensions of D10cm multiplied by 5.3cm multiplied by 5cm are respectively arranged on the corresponding positions of the two pressing plates 120, the inner holes of the second ring magnets 122 are in sliding fit with the guide members 114 for positioning, the magnetic poles of the first ring magnets 113 and the second ring magnets 122 are opposite to each other, and the opposite attraction effect is achieved, wherein D represents the outer ring diameter of the first ring magnets 113 or the second ring magnets 122, and D represents the inner ring diameter of the first ring magnets 113 or the second ring magnets 122.
It should be noted that, the jig 110 is uniformly provided with profiling points corresponding to the product 112 to be processed, that is, the placement grooves, after the pressing plate 120 is manually and directly removed, the product 112 to be processed is installed in the corresponding profiling points, then the pressing plate 120 is installed on one side of the jig 110 close to the product 112 to be processed, the inner hole of the second ring magnet 122 on the pressing plate 120 automatically guides the position through the corresponding guide member 114, and the effect of clamping the product 112 to be processed is achieved by the adsorption force between the first ring magnet 113 and the second ring magnet 122, and the operation is repeated.
Referring to fig. 1, it can be understood that one of the jig 110 and the pressing plate 120 is provided with a guide 114, and the other is provided with a guide hole engaged with the guide 114.
The plurality of placement grooves are formed with a first group of placement grooves and a second group of placement grooves, the two pressing plates 120 are a first pressing plate 120 and a second pressing plate 120, the first pressing plate 120 is disposed on one side of the jig 110 close to the first group of placement grooves, and the second pressing plate 120 is disposed on one side of the jig 110 close to the second group of placement grooves.
Specifically, the first pressing plate 120 is installed on a side close to the first set of placing grooves, the second pressing plate 120 is installed on a side close to the second set of placing grooves, so that the product 112 to be processed accommodated in the first set of placing grooves is clamped and limited by the first pressing plate 120, and the product 112 to be processed accommodated in the second set of placing grooves is clamped and limited by the second pressing plate 120.
The guide holes in the first ring magnet and the second ring magnet are matched with the guide piece 114, so that the first ring magnet 113 and the second ring magnet 122 can be tightly assembled with the guide piece 114 to realize guide positioning; in this embodiment, the guide 114 is a guide pin, which is a ferrous material. After the product 112 to be processed is placed in the placing groove, the pressing plate 120 is grasped, the side, provided with the second annular magnet 122, of the pressing plate 120 is pushed towards the side, provided with the first annular magnet, of the jig 110, and the pressing plate 120 is mounted on the jig 110 and clamps the product 112 to be processed, which is close to the side of the pressing plate 120, by means of the magnetic force of opposite magnetic poles between the first annular magnet 113 and the second annular magnet 122 and the automatic guiding and positioning function of the guiding piece 114, so that chamfering processing can be performed on the product 112 to be processed later.
Referring to fig. 1, it can be understood that one end of the guide 114 is fixedly disposed at the middle of the first ring magnet 113, and the center hole of the second ring magnet 122 constitutes a guide hole.
The other end of the guide member 114 is movably disposed through the guide hole of the second ring magnet 122.
It can be understood that referring to fig. 1, the jig 110 is formed with first mounting grooves 111, the first mounting grooves 111 are formed on the opposite side surfaces of the jig 110 and the pressing plate 120, the number of the first mounting grooves 111 is the same as that of the first ring magnets 113, and each first ring magnet 113 is correspondingly accommodated in one first mounting groove 111.
The number of second ring magnets and the number of guides 114 are the same as the number of first ring magnets 113.
Referring to fig. 2, it can be understood that the pressing plates 120 are formed with second mounting grooves 121, the number of the second mounting grooves 121 and the number of the second ring magnets 122 are the same on each pressing plate 120, and each of the second ring magnets 122 is correspondingly accommodated in one of the second mounting grooves 121.
In some embodiments, three second mounting grooves 121 for accommodating the second ring magnets 122 are formed on each pressing plate 120 at intervals, three first mounting grooves 111 for accommodating the first ring magnets 113 are formed on the side of the jig 110 corresponding to the pressing plate 120, and the number of the guide members 114 corresponds to the number of the second mounting grooves 121.
In some embodiments, a second mounting groove 121 for accommodating the second ring magnet 122 is formed in the middle position on each pressing plate 120, three first mounting grooves 111 for accommodating the first ring magnet 113 are formed on the side of the jig 110 corresponding to the pressing plate 120, and the number and positions of the guide members 114 and the first mounting grooves 111 formed on the jig 110 correspond to the number and positions of the second mounting grooves 121, which is not limited to the embodiments of the present application.
Referring to fig. 3, it can be appreciated that the chamfer fixture 100 further includes a support base 130, and the jig 110 is detachably connected to the support base 130.
It should be noted that, by arranging the supporting base 130 to limit and fix the fixture 110, the product 112 to be processed on the fixture 110 can be better processed.
It should be noted that, the clamping cylinders 131 are respectively disposed at two sides of the jig 110 on the supporting base, so that the corresponding pressure fasteners 132 are respectively driven by the clamping cylinders 131 at two sides to simultaneously press two sides of the jig 110, so as to maintain the balance of the jig 110, and fix the jig better.
It will be appreciated that the support base 130 is provided with a clamping mechanism for clamping and fixing the jig member 110 to the support base 130.
It should be noted that, referring to fig. 3, the support base 130 includes a first support plate 133, a second support plate 134, at least two third support plates 135, one end of each third support plate 135 is connected to the first support plate 133, the other end of each third support plate 135 is connected to the second support plate 134, the fixture 110 is disposed on the second support plate 134, two clamping cylinders 131 are respectively disposed at two ends of the first support plate 133, and the first support plate 133 and the at least two third support plates 135 are both located between the two clamping cylinders 131.
In some embodiments, referring to fig. 3, two third support plates 135 are provided, one end of the two third support plates 135 being connected to the first support plate 133 and the other end being connected to the second support plate 134. In other embodiments, other numbers of third support plates 135 may be provided, and are not limited to the embodiments of the present application.
Referring to fig. 3 to 4, it can be understood that the clamping mechanism includes a clamping cylinder 131 and a pressure fastener 132, the clamping cylinder 131 is disposed at one side of the jig 110, a driving end of the pressure fastener 132 is connected to the clamping cylinder 131, a clamping end of the pressure fastener 132 extends above the jig 110, and the clamping cylinder 131 is used to drive the pressure fastener 132 to approach and clamp the jig 110, or to distance and loosen the clamping end from the jig 110.
It should be noted that, the clamping cylinder 131 drives the pressure fastener 132 to press the fixture 110, so as to fix the fixture 110 on the supporting base 130 more stably, and further facilitate chamfering the product 112 to be processed on the fixture 110.
It should be noted that, the middle portion of the pressure fastening member 132 is fixed to the clamping cylinder 131, one end of the pressure fastening member 132 extends to the surface of the upper side of the jig 110, and the other end of the pressure fastening member 132 is connected to the cylinder body of the clamping cylinder 131.
Illustratively, two clamping cylinders 131 are provided, the two clamping cylinders 131 being disposed at opposite ends of the support base 130, respectively, and the number of the pressure fasteners 132 corresponds to the number of the clamping cylinders 131.
In a second aspect, embodiments of the present application provide a chamfering machine comprising a chamfering fixture 100 as described above in the first aspect.
Specifically, after the product 112 to be processed is placed in the placement groove, the pressing plate 120 is grasped and the side of the pressing plate 120 provided with the second ring magnet 122 is pushed toward the side of the jig 110 provided with the first ring magnet, and the pressing plate 120 is mounted on the jig 110 and the product 112 to be processed near the side of the pressing plate 120 is clamped by means of the magnetic force of the opposite magnetic poles between the first ring magnet 113 and the second ring magnet 122 and the automatic guiding and positioning function of the guiding member 114, so that chamfering processing is performed on the product 112 to be processed by a chamfering machine.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the present application, such changes and modifications are also intended to be within the scope of the present application.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A chamfer fixing device, characterized by comprising:
the jig comprises a jig piece, wherein a plurality of placing grooves are formed in the first surface of the jig piece, clamping openings are formed in at least one side surface, adjacent to the first surface, of the jig piece, and the placing grooves are used for accommodating products to be processed; the side surface of the jig part, on which the clamping opening is formed, is provided with at least one first annular magnet;
the pressing plate is arranged opposite to the side surface of the jig part, on which the clamping opening is formed, at least one second annular magnet is arranged, the second annular magnet is arranged opposite to the first annular magnet, and the magnetic poles of the second annular magnet and the opposite side of the first annular magnet are arranged in opposite directions; the pressing plate can be movably connected to the jig piece through the magnetic attraction of the first annular magnet and the second annular magnet, and is used for sealing the clamping opening so as to clamp and fix the product to be processed in the placing groove.
2. The chamfer fixing device according to claim 1, wherein the placement grooves are provided with a plurality of groups, each group of placement grooves is provided corresponding to a different edge of the first surface, the pressing plates are provided with a plurality of groups, and each pressing plate is provided corresponding to one group of placement grooves.
3. The chamfer fixing device according to claim 1, wherein one of the jig member and the pressing plate is provided with a guide member, and the other is provided with a guide hole that mates with the guide member.
4. The chamfer fixing device according to claim 3, wherein one end of the guide member is fixedly provided in the middle of the first ring magnet, and the center hole of the second ring magnet constitutes the guide hole.
5. The chamfer fixing device according to claim 1, wherein a first mounting groove is formed in the jig, the first mounting groove is formed in a side surface of the jig opposite to the pressing plate, the number of the first mounting grooves is the same as that of the first ring magnets, and each first ring magnet is correspondingly accommodated in one of the first mounting grooves.
6. The chamfer fixing device according to claim 5, wherein a second mounting groove is formed in the pressing plate, the number of the second mounting grooves and the number of the second ring magnets are the same in each pressing plate, and each second ring magnet is correspondingly accommodated in one second mounting groove.
7. The chamfer fixture of claim 1, further comprising a support base, the jig member being removably attached to the support base.
8. The chamfer fixing device according to claim 7, wherein a clamping mechanism is provided on the support base, the clamping mechanism being used for clamping and fixing the jig member on the support base.
9. The chamfer fixing device according to claim 8, wherein the clamping mechanism comprises a clamping cylinder and a pressure fastener, the clamping cylinder is arranged on one side of the jig, the driving end of the pressure fastener is connected with the clamping cylinder, the clamping end of the pressure fastener extends to above the jig, and the clamping cylinder is used for driving the pressure fastener so that the clamping end approaches to and clamps the jig, or so that the clamping end is far away from and loosens the jig.
10. A chamfering machine comprising the chamfering fixing apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320372837.3U CN219484894U (en) | 2023-02-28 | 2023-02-28 | Chamfering fixing device and chamfering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320372837.3U CN219484894U (en) | 2023-02-28 | 2023-02-28 | Chamfering fixing device and chamfering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219484894U true CN219484894U (en) | 2023-08-08 |
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ID=87515873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320372837.3U Active CN219484894U (en) | 2023-02-28 | 2023-02-28 | Chamfering fixing device and chamfering machine |
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| Country | Link |
|---|---|
| CN (1) | CN219484894U (en) |
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- 2023-02-28 CN CN202320372837.3U patent/CN219484894U/en active Active
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