Chamfering tool and chamfering device

Abstract

The application discloses a chamfering cutter and a chamfering device, and belongs to the technical field of machining. The chamfering cutter comprises a cutter mounting seat and a blade. The cutter mounting seat is provided with a connecting channel and a fixing channel. The connecting channel is used for allowing a connecting rod to pass through. One end of the fixing channel is communicated with the connecting channel. One end of the fixing channel, which is away from the connecting channel, is provided with a fixing assembly. The fixing channel is used for allowing the fixing assembly to pass through. The fixing assembly is used for being embedded into a positioning groove to fix the cutter mounting seat and the connecting rod. The cutter mounting seat is provided with at least one blade mounting position on the two sides close to the two ends of the connecting channel. The blade is provided with at least two. The opposite two sides of each blade are provided with cutting edges. Each blade mounting position is provided with a mounting groove. The blade can be embedded into the mounting groove and fixedly connected with the cutter mounting seat. The chamfering cutter can improve the chamfering processing efficiency of the end of the water hole of a template.

Description

Technical Field

[0001] This application relates to the field of machining technology, and in particular to a chamfering tool and chamfering device. Background Technology

[0002] Existing chamfering tools can only perform chamfering in one direction. When the template has blind holes, a single feed can only chamfer the water channel hole on one side. To chamfer the water channel hole on the opposite side, the chamfering tool needs to be changed. When machining multi-cavity templates with blind holes, frequent tool changes are required, significantly reducing the chamfering efficiency at the water channel hole ends. Therefore, improving the chamfering efficiency at the water channel hole ends of templates is a pressing technical problem that needs to be solved. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a chamfering tool and a chamfering processing device, which can improve the chamfering processing efficiency of the ends of the water channel holes in the template.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] In a first aspect, this application provides a chamfering tool, comprising:

[0006] A tool mounting base is provided with a connecting channel and a fixing channel. The connecting channel is for the connecting rod to pass through. One end of the fixing channel is connected to the connecting channel. A fixing component is provided at the end of the fixing channel away from the connecting channel. The fixing channel is for the fixing component to pass through. The fixing component is used to embed into the positioning groove to fix the tool mounting base to the connecting rod. At least one blade mounting position is provided on each side of the tool mounting base near both ends of the connecting channel.

[0007] The blade has at least two blades, each blade has a cutting edge on both opposite sides, and each blade mounting position has a mounting groove, the blade can be embedded in the mounting groove and fixedly connected to the tool mounting seat.

[0008] The chamfering tool according to the first aspect of this application has at least the following advantages: The tool mounting base, through the cooperation of the connecting channel and the fixed channel, allows the connecting rod to pass through stably and be embedded in the positioning groove by the fixing component, achieving a stable connection between the tool mounting base and the connecting rod, reducing the probability of the chamfering tool detaching from the connecting rod during processing, and improving safety. At least one blade mounting position is provided on each side of the tool mounting base, and a mounting groove is provided on the mounting position to ensure the blade is firmly embedded and fixed. Blades are provided at the blade mounting positions on both sides of the tool mounting base, enabling effective cutting during both forward and backward movements, thereby achieving chamfering of the front and rear water channels of a multi-cavity template with blind holes. Compared to traditional unidirectional chamfering tools, the embodiments of this application can simultaneously complete the chamfering of the ends of both front and rear water channels in a single feed, significantly improving processing efficiency, reducing process changeover time, and reducing the need for repeated tool setting and tool changing. Therefore, this application solves the technical problem of how to improve the chamfering efficiency of the ends of the water channels in a template.

[0009] According to some embodiments of the first aspect of this application, the fixing component includes a fixing nut, a positioning pin, and a spring. The fixing nut is disposed at one end of the fixing channel away from the connecting channel. The positioning pin includes a positioning rod disposed in the fixing channel and passing through the fixing nut. The positioning rod protrudes at one end near the connecting channel to form a positioning protrusion for embedding in the positioning groove. The positioning protrusion protrudes peripherally at one end away from the connecting channel to form a snap-fit ​​protrusion. One end of the spring abuts against the end of the fixing nut near the connecting channel, and the other end of the spring abuts against the end of the snap-fit ​​protrusion near the fixing nut.

[0010] According to some embodiments of the first aspect of this application, the fixing component further includes a handle nut connected to the end of the positioning rod away from the connecting channel.

[0011] According to some embodiments of the first aspect of this application, the tool mounting base is provided with three evenly distributed blade mounting positions on both sides near the two ends of the connecting channel, and there are six blades. Each blade is embedded in the mounting groove on the corresponding blade mounting position and is fixedly connected to the tool mounting base.

[0012] According to some embodiments of the first aspect of this application, the blade mounting position is further provided with a first groove, the first groove being disposed on the side of the blade mounting position facing the fixed channel, and the first groove communicating with the mounting groove.

[0013] According to some embodiments of the first aspect of this application, the cross-section of the connecting channel is hexagonal, and the cross-section of the connecting rod matches the cross-section of the connecting channel.

[0014] According to some embodiments of the first aspect of this application, the blade is detachably connected to the blade mounting base.

[0015] According to some embodiments of the first aspect of this application, the blade is provided with a first connecting hole, the mounting groove is provided with a second connecting hole, and an external fastener passes through the first connecting hole and the second connecting hole in sequence to fix the blade to the tool mounting base.

[0016] Secondly, this application provides a chamfering apparatus, including the chamfering cutter described in the first aspect embodiment of this application.

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of one angle of an embodiment of the chamfering tool of this application;

[0019] Figure 2 This is a schematic diagram of one embodiment of the tool mounting base of this application;

[0020] Figure 3 This is a cross-sectional schematic diagram of one embodiment of the tool mounting bracket of this application;

[0021] Figure 4 This is a schematic diagram showing the installation of a chamfering tool according to one embodiment of the present application with a connecting rod;

[0022] Figure 5 This is a structural schematic diagram of another embodiment of the chamfering tool of this application from another angle;

[0023] Figure label:

[0024] Tool mounting base 100, connecting channel 110, fixing channel 120, second connecting hole 130, tool mounting position 140, mounting groove 141, first groove 142.

[0025] Fixing component 200, fixing nut 210, locating pin 220, spring 230, locating rod 221, locating protrusion 222, snap-fit ​​protrusion 223, handle nut 240.

[0026] Blade 300

[0027] Connecting rod 400. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, and right, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0032] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0033] Reference Figure 1 , 2 As shown in Figure 3, the chamfering tool includes a tool mounting base 100 and a cutting blade 300. The tool mounting base 100 is provided with a connecting channel 110 and a fixing channel 120. The connecting channel 110 is used for the connecting rod 400 to pass through. One end of the fixing channel 120 is connected to the connecting channel 110. The fixing channel 120 is provided with a fixing component 200 at the end away from the connecting channel 110. The fixing channel 120 is used for the fixing component 200 to pass through. The fixing component 200 is used to embed into the positioning groove (not shown in the figure) to fix the tool mounting base 100 to the connecting rod 400. At least one cutting blade 300 mounting position 140 is provided on each side of the tool mounting base 100 near the two ends of the connecting channel 110. There are at least two cutting blades 300. Each cutting blade 300 has a cutting edge on each opposite side. Each cutting blade 300 mounting position 140 has a mounting groove 141. The cutting blade 300 can be embedded into the mounting groove 141 and fixedly connected to the tool mounting base 100.

[0034] In the above embodiments, the tool mounting base 100, through the cooperation of the connecting channel 110 and the fixed channel 120, allows the connecting rod 400 to pass through stably and be embedded in the positioning groove by the fixing component 200, thereby achieving a stable connection between the tool mounting base 100 and the connecting rod 400, reducing the probability of the chamfering tool detaching from the connecting rod 400 during processing, and improving safety. At least one blade 300 mounting position 140 is provided on each side of the tool mounting base 100, and a mounting groove 141 is provided on the mounting position to securely embed and fix the blade 300. The blade 300 mounting positions 140 on both sides of the tool mounting base 100 are equipped with blades 300, which can effectively cut during forward and backward movements, thereby achieving chamfering of the front and rear water channels of a multi-cavity template with blind holes. Compared with traditional unidirectional chamfering tools, the embodiments of this application can complete the chamfering of two water channels simultaneously in one feed, significantly improving processing efficiency, reducing process changeover time, and reducing the need for repeated tool setting and tool changing.

[0035] In some embodiments, the insert 300 may be a used cutting tool, which has only used the tip portion during lathe machining and is worn. However, the side cutting edges of the used cutting tool can be used for chamfering. Therefore, using used cutting tools as the insert 300 achieves resource reuse, meets environmental protection requirements, reduces production costs, eliminates the need for sharpening, saves machining time, and improves machining efficiency.

[0036] Understandably, referring to Figure 3 , 4As shown, the fixing assembly 200 includes a fixing nut 210, a positioning pin 220, and a spring 230. The fixing nut 210 is located at the end of the fixing channel 120 away from the connecting channel 110. The positioning pin 220 includes a positioning rod 221, which is disposed in the fixing channel 120 and passes through the fixing nut 210. The end of the positioning rod 221 near the connecting channel 110 protrudes to form a positioning protrusion 222, which is used to fit into a positioning groove. The end of the positioning protrusion 222 away from the connecting channel 110 protrudes peripherally to form a snap-fit ​​protrusion 223. One end of the spring 230 abuts against the end of the fixing nut 210 near the connecting channel 110, and the other end of the spring 230 abuts against the end of the snap-fit ​​protrusion 223 near the fixing nut 210. The fixing nut 210 is installed at the end of the fixing channel 120 away from the connecting channel 110, making the entire fixing structure more compact and facilitating assembly and adjustment. The positioning rod 221 in the positioning pin 220 passes through the fixing nut 210 and forms a positioning protrusion 222 at one end near the connecting channel 110. This protrusion can be precisely embedded into the positioning groove on the connecting rod 400, thereby ensuring a stable connection between the tool mounting seat 100 and the connecting rod 400 and preventing displacement or vibration caused by loosening during processing. The end of the positioning protrusion 222 away from the connecting channel 110 has a snap-fit ​​protrusion 223, forming a reliable pre-tightening structure with the spring 230. One end of the spring 230 abuts against the fixing nut 210, and the other end abuts against the snap-fit ​​protrusion 223, keeping the positioning pin 220 in an elastic state at all times, which helps improve the stability of the connection and facilitates installation, disassembly, and replacement. The above embodiment not only ensures a high-rigidity connection of the tool and reduces errors caused by loosening during processing, but also improves the convenience of tool replacement and installation, increases processing efficiency, and enhances the overall structural durability.

[0037] Understandably, referring to Figure 4 As shown, the fixing assembly 200 also includes a carrying nut 240, which is connected to the end of the positioning rod 221 away from the connecting channel 110. Through the synergistic action of the fixing nut 210, the carrying nut 240, the positioning pin 220, and the spring 230, the fixing assembly 200 makes the fixation of the tool mounting base 100 and the connecting rod 400 more stable and easier to adjust. The connection of the carrying nut 240 to the end of the positioning rod 221 away from the connecting channel 110 allows the operator to easily adjust or loosen the positioning pin 220 manually using the carrying nut 240 without additional tools, improving the efficiency of chamfering tool assembly and disassembly, thereby improving the chamfering efficiency at the end of the water passage.

[0038] In some embodiments, to improve connection stability and anti-loosening capability, the fixing assembly 200 may be equipped with an anti-loosening washer and a locking spring 230 assembly. The fixing nut 210 may be a self-locking nut with an internal nylon locking ring to prevent loosening under high-frequency vibration conditions. In addition to embedding into the positioning groove on the connecting rod 400, the positioning protrusion 222 of the positioning pin 220 may also be equipped with a wedge-shaped locking design. When the positioning pin 220 is inserted, the positioning protrusion 222 can form a self-locking inclined structure through the force of the spring 230, improving impact and vibration resistance. Furthermore, an additional torsion spring structure is added between the handle nut 240 and the positioning rod 221. This torsion spring can provide additional rebound force after the handle nut 240 is released, allowing the positioning pin 220 to quickly return to its original position, reducing manual operation time and improving processing continuity.

[0039] In some embodiments, to improve assembly and disassembly efficiency, a quick-change locking mechanism can be introduced, enabling rapid assembly and disassembly of the tool mount 100 without the use of tools. The fixing nut 210 can be replaced with a quick-change locking clip, which has an internal ball-bearing snap-fit ​​structure that automatically locks when the locating pin 220 is inserted. When the handle nut 240 is rotated at a certain angle, the ball mechanism releases, allowing the locating pin 220 to disengage from the locating groove, thereby quickly releasing the tool mount 100. Simultaneously, the force of the spring 230 ensures that the locating pin 220 automatically springs into the locating groove during assembly, achieving one-click locking without the need for additional nut adjustment.

[0040] Understandably, referring to Figure 5 As shown, the tool mount 100 has three evenly distributed insert 300 mounting positions 140 on each side near the two ends of the connecting channel 110. There are six inserts 300, each of which is embedded in a mounting groove 141 on its corresponding insert 300 mounting position 140 and fixedly connected to the tool mount 100. The inserts 300 located on both sides of the tool mount 100 are evenly distributed, distributing the cutting force evenly across multiple points. This effectively reduces excessive force at a single point, thereby reducing tool wear and increasing the service life of the inserts 300. The multi-insert 300 structure helps improve the surface quality of the machined material and reduces burrs and chamfer dimensional errors.

[0041] Understandably, referring to Figure 2 As shown, the blade 300 mounting position 140 is also provided with a first groove 142. The first groove 142 is located on the side of the blade 300 mounting position 140 facing the fixing channel 120, and the first groove 142 communicates with the mounting groove 141. By providing the first groove 142 that communicates with the mounting groove 141, there is reserved space when the blade 300 needs to be replaced, making it easier for the blade 300 to be removed from the mounting groove 141, thereby improving the efficiency of blade 300 disassembly.

[0042] For example, such asFigure 2 As shown, each mounting groove 141 is provided with two first grooves 142. The two first grooves 142 are located on the side of the blade 300 mounting position 140 facing the fixing channel 120. When the blade 300 is embedded in the mounting groove 141, the two first grooves 142 can make the two corners of the blade 300 near the tool mounting seat 100 form a gap with the tool mounting seat 100. When the blade 300 needs to be replaced, it is easier to remove the blade 300 from the tool mounting seat 100, thereby improving the removal efficiency of the blade 300.

[0043] Understandably, referring to Figure 1 , 4 As shown, the cross-section of the connecting channel 110 is hexagonal, and the cross-section of the connecting rod 400 matches that of the connecting channel 110. This enhances the torsional resistance between the tool mount 100 and the connecting rod 400, ensuring that no relative slippage or displacement occurs during high-load, high-speed rotational chamfering. Compared to traditional circular or square cross-sections, the hexagonal structure provides more contact surface, effectively dispersing torque loads, reducing stress concentration, and improving the stability and durability of the connection. Furthermore, this embodiment also features a self-aligning function. During assembly, the connecting rod 400 can be smoothly inserted into the connecting channel 110 and precisely positioned, reducing assembly errors and improving machining accuracy. Simultaneously, the tool's direction stability is ensured without the need for an additional anti-rotation mechanism, simplifying structural design and reducing manufacturing costs.

[0044] Understandably, the insert 300 and its mounting base are detachably connected. This detachable connection allows for quick replacement of the insert 300 after wear, extending the lifespan of the mounting base 100 and reducing overall maintenance costs. Because the insert 300 can be independently removed, replacing the insert 300 does not require replacing the entire mounting base 100, thus reducing material waste and improving economic efficiency. The detachable connection also facilitates daily cleaning and maintenance, preventing chip accumulation that could affect machining quality.

[0045] In some embodiments, a resilient snap-fit ​​structure can be designed within the mounting groove 141 of the blade 300. A protrusion or slot is provided on one side of the blade 300, and the blade 300 is secured by the elastic force of the snap-fit, eliminating the need for additional screws or tools. Blade 300 replacement can be performed by hand; it can be removed or installed with just a gentle press, significantly improving replacement efficiency.

[0046] Understandably, referring to Figure 2As shown, the blade 300 is provided with a first connecting hole (not shown in the figure), and the mounting groove 141 is provided with a second connecting hole 130. The external fastener passes through the first connecting hole and the second connecting hole 130 in sequence to fix the blade 300 to the tool mounting seat 100, thereby reducing the probability of the blade 300 separating from the tool mounting seat 100 during the chamfering process and improving the safety and stability of the chamfering process.

[0047] In some embodiments, a chamfering tool according to the first aspect of this application can be used to chamfer the ends of the water channels of a template with multiple cavities, including the following steps: inserting a connecting rod 400 into the water channel of the template to the chamfering processing position of the template; wherein, the chamfering processing position includes a first water channel and a second water channel that are positioned opposite each other; placing the chamfering tool into the chamfering processing position; inserting the connecting rod 400 into the connecting channel 110; passing the fixing component 200 through the fixing channel 120 and embedding it into the positioning groove; starting the electric drill to rotate the chamfering tool; pushing the chamfering tool forward and abutting against the first water channel to form a first chamfer at the end of the first water channel that is close to the second water channel; changing the rotation direction of the electric drill drive end to change the rotation direction of the chamfering tool; pulling the chamfering tool backward and abutting against the second water channel to form a second chamfer at the end of the second water channel that is close to the first water channel. This embodiment achieves bidirectional chamfering of the first and second water-carrying holes in a blind hole template through the cooperation of the connecting rod 400, the chamfering cutter, and the fixing component 200. This eliminates the need for tool disassembly or readjustment, improving processing efficiency. By inserting the connecting rod 400 into the water-carrying hole to the chamfering position, precise tool positioning is ensured. The fixing component 200 is embedded in the positioning groove, ensuring the tool mounting base 100 remains stable and reliable during processing, preventing displacement. Driven by a hand drill, the chamfering cutter first pushes forward to form the chamfer of the first water-carrying hole. Then, by changing the rotation direction of the hand drill, the cutter rotates in the opposite direction and is pulled backward to chamfer the second water-carrying hole. This embodiment can complete bidirectional chamfering in a single clamping operation, avoiding the problems of step-by-step processing, repeated positioning, or tool replacement required in traditional methods. This significantly improves processing accuracy and consistency, reduces human error, and increases production efficiency.

[0048] The chamfering apparatus of the second aspect of this application includes the chamfering cutter of the first aspect of this application, which can chamfer the water passage of a multi-cavity template with blind holes and improve processing efficiency.

[0049] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A chamfering tool, characterized in that, Applied to an electric drill, the drive end of the electric drill is provided with a connecting rod, the connecting rod is provided with a positioning groove, and the chamfering cutter includes: A tool mounting base is provided with a connecting channel and a fixing channel. The connecting channel is for the connecting rod to pass through. One end of the fixing channel is connected to the connecting channel. A fixing component is provided at the end of the fixing channel away from the connecting channel. The fixing channel is for the fixing component to pass through. The fixing component is used to embed into the positioning groove to fix the tool mounting base to the connecting rod. At least one blade mounting position is provided on each side of the tool mounting base near both ends of the connecting channel. The blade has at least two blades, each blade has a cutting edge on both opposite sides, and each blade mounting position has a mounting groove, the blade can be embedded in the mounting groove and fixedly connected to the tool mounting seat.

2. The chamfering tool according to claim 1, characterized in that, The fixing assembly includes a fixing nut, a positioning pin, and a spring. The fixing nut is disposed at the end of the fixing channel away from the connecting channel. The positioning pin includes a positioning rod disposed in the fixing channel and passing through the fixing nut. The end of the positioning rod near the connecting channel protrudes to form a positioning protrusion, which is used to embed into the positioning groove. The end of the positioning protrusion away from the connecting channel protrudes peripherally to form a snap-fit ​​protrusion. One end of the spring abuts against the end of the fixing nut near the connecting channel, and the other end of the spring abuts against the end of the snap-fit ​​protrusion near the fixing nut.

3. The chamfering tool according to claim 2, characterized in that, The fixing component also includes a handle nut, which is connected to the end of the positioning rod away from the connecting channel.

4. The chamfering tool according to claim 1, characterized in that, The tool mounting base has three evenly distributed blade mounting positions on both sides near the two ends of the connecting channel. There are six blades, and each blade is embedded in the mounting groove on the corresponding blade mounting position and fixedly connected to the tool mounting base.

5. The chamfering tool according to claim 1, characterized in that, The blade mounting position is further provided with a first groove, which is located on the side of the blade mounting position facing the fixed channel, and the first groove communicates with the mounting groove.

6. The chamfering tool according to claim 1, characterized in that, The cross-section of the connecting channel is hexagonal, and the cross-section of the connecting rod matches the cross-section of the connecting channel.

7. The chamfering tool according to claim 1, characterized in that, The blade is detachably connected to the blade mounting base.

8. The chamfering tool according to claim 7, characterized in that, The blade has a first connecting hole, and the mounting groove has a second connecting hole. External fasteners pass through the first connecting hole and the second connecting hole in sequence to fix the blade to the tool mounting base.

9. A chamfering processing device, characterized in that, Includes the chamfering tool according to any one of claims 1 to 8.

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