Chamfer adjusting device and chamfering machine
By designing a chamfering adjustment device, and utilizing adjusting bolts and multiple bearing support structures, continuous adjustment of the chamfering depth can be achieved. This solves the problem of frequent tool changes required for chamfering equipment, improves processing efficiency, and reduces inventory management costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BOLIGAN (XIAMEN) COMPOSITE MATERIALS CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-02
AI Technical Summary
Existing chamfering equipment requires frequent replacement of chamfering tools of different specifications, which leads to complex tool inventory management and increased costs, especially inconvenient operation in small-batch, multi-variety production scenarios.
Design a chamfering adjustment device, which adjusts the chamfering blade's extension height relative to the drive shaft assembly by turning an adjusting bolt in the adjusting hole of the chamfering blade, thereby achieving continuous adjustment of the chamfering depth. Multiple first bearings are set in the drive shaft assembly to support the rotational movement of the shaft, reduce friction and vibration, and enhance rigidity.
The chamfering depth can be continuously adjusted without changing chamfering cutters of different specifications, simplifying the operation process, reducing inventory management costs, improving processing efficiency and flexibility, and ensuring processing stability and precision.
Smart Images
Figure CN224309727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chamfering technology, and in particular to a chamfering adjustment device and a chamfering machine. Background Technology
[0002] In the field of machining, chamfering, as a key process in workpiece edge treatment, is widely used in the finishing of materials such as metals and plastics to remove burrs, improve assembly accuracy, and enhance product aesthetics. Currently, the industry commonly uses specialized chamfering equipment to chamfer workpieces. Its core component is the chamfering cutter, which achieves chamfering through the relative movement of the cutter and the workpiece. However, existing chamfering equipment has significant technical limitations in practical applications: for chamfering requirements of different depths, it is necessary to frequently change chamfering cutters of corresponding specifications.
[0003] Specifically, traditional chamfering equipment typically uses a fixed-size chamfering cutter design, with each cutter only capable of processing chamfers of a specific size. Furthermore, to meet diverse processing needs, companies must pre-purchase various sizes of chamfering cutters for backup, leading to complex tool inventory management and increased costs, especially in small-batch, multi-variety production scenarios. Therefore, we provide a chamfering adjustment device and chamfering machine to solve these problems. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a chamfering adjustment device and a chamfering machine.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A chamfering adjustment device, comprising:
[0007] Drive shaft assembly;
[0008] A coupling, which is fixedly disposed at the rotating end of the transmission shaft assembly, has a mounting hole;
[0009] A chamfering cutter is disposed on the top of the drive shaft assembly and is detachably connected to the drive shaft assembly via the coupling. The chamfering cutter has an adjustment hole.
[0010] An adjusting bolt is screwed into the adjusting hole.
[0011] Preferably, the drive shaft assembly includes a shaft housing with a receiving hole, in which a shaft is rotatably disposed. The shaft has a first end and a second end. A coupling is fixedly disposed on the first end, and the chamfering cutter is fixedly connected to the first end through the coupling. A pulley is drively connected to the second end.
[0012] Preferably, a first bearing is provided in the receiving hole, the outer ring of the first bearing is tightly attached to the inner wall of the receiving hole, and the inner ring of the first bearing is tightly attached to the circumferential surface of the shaft.
[0013] Preferably, the number of the first bearings is N, satisfying: N≥2, and the first bearings are evenly distributed at the first end and the second end of the shaft.
[0014] Preferably, the chamfering tool includes a tool body, and a connecting shaft is integrally provided at the end of the tool body facing the drive shaft assembly, and the adjustment hole is formed in the connecting shaft.
[0015] Preferably, the top of the drive shaft assembly is provided with a sealing structure, the sealing structure including a first dustproof ring fixedly connected to the drive shaft assembly, the upper surface of the first dustproof ring being integrally provided with a convex ring, the circumferential surface of the coupling being detachably and fixedly provided with a second dustproof ring, the end face of the second dustproof ring facing the direction of the first dustproof ring being provided with an annular groove, and the convex ring being at least partially located in the annular groove.
[0016] Preferably, a second bearing is detachably and fixedly installed at the end of the blade body opposite to the direction of the connecting shaft.
[0017] This application also provides a chamfering machine, which includes the chamfering adjustment device described in any of the above claims.
[0018] This utility model has the following advantages:
[0019] 1. This utility model can adjust the chamfering depth by adjusting the height of the chamfering cutter relative to the drive shaft assembly by screwing the adjusting bolt into the adjusting hole of the chamfering cutter. This allows for continuous adjustment of the chamfering depth without the need to replace chamfering cutters of different specifications, significantly reducing the frequency of tool replacement, simplifying the operation process, reducing inventory management costs, and improving processing efficiency and flexibility.
[0020] 2. This utility model provides multi-directional support for the rotational movement of the shaft by setting at least two first bearings in the receiving hole, with their outer rings tightly against the inner wall of the receiving hole and their inner rings tightly against the circumferential surface of the shaft body. At the same time, the first bearings are evenly distributed at the first and second ends of the shaft body. This significantly reduces rotational friction and vibration, enhances the overall rigidity and anti-eccentric load capacity of the transmission shaft assembly, prevents the shaft body from flexing due to excessive span, extends the service life of the first bearings and the shaft body, and ensures the adjustment accuracy and processing stability of the chamfering tool. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the adjustment device of this utility model.
[0022] Figure 2This is a schematic diagram of the structure of the regulating device of this utility model in the explosion state.
[0023] Figure 3 This is a schematic diagram of the chamfering tool structure of this utility model.
[0024] Figure 4 This is a cross-sectional structural diagram of the adjustment device of this utility model.
[0025] Figure 5 This is a schematic diagram of the sealing structure of this utility model.
[0026] Figure 6 This is a schematic diagram showing the adjustment process of the chamfering tool of this utility model and a comparison before and after.
[0027] In the figure, 100 is the drive shaft assembly; 110 is the shaft housing; 101 is the receiving hole; 120 is the shaft body; 130 is the pulley; 140 is the first bearing; 200 is the coupling; 300 is the chamfering tool; 301 is the adjusting hole; 310 is the tool body; 320 is the connecting shaft; 400 is the adjusting bolt; 500 is the sealing structure; 510 is the first dustproof ring; 511 is the convex ring; 520 is the second dustproof ring; 521 is the ring groove; 600 is the second bearing; and a is the carrier plate. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] like Figure 1 — Figure 5 The example shown.
[0031] A chamfering adjustment device includes a drive shaft assembly 100, a coupling 200, a chamfering cutter 300, and an adjusting bolt 400. Specifically, the coupling 200 is fixedly disposed at the rotating end of the drive shaft assembly 100 and has a mounting hole. The chamfering cutter 300 is disposed on the top of the drive shaft assembly 100 and is detachably connected to the drive shaft assembly 100 via the coupling 200. The chamfering cutter 300 has an adjusting hole 301, and the adjusting bolt 400 is screwed into the adjusting hole 301.
[0032] See Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, when it is necessary to adjust the chamfer depth, the chamfering cutter 300 can be disassembled first through the coupling 200. Then, the adjusting bolt 400 is turned to adjust the distance of the adjusting bolt 400 extending out of the adjusting hole 301. The longer the part of the adjusting bolt 400 outside the adjusting hole 301, the larger the chamfer size processed by the chamfering cutter 300. It can be understood that when the chamfering cutter 300 is reinstalled after adjustment, the part of the bottom of the adjusting bolt 400 extending outward will abut against the top of the drive shaft assembly 100, thereby causing the chamfering cutter 300 to extend upward to a certain height. That is, the height of the chamfering cutter 300 protruding from the workpiece carrier plate will increase, thus realizing the adjustment of the chamfer depth.
[0033] In this embodiment, the coupling 200 is a rigid coupling. Rigid couplings can withstand large torques and have advantages such as good stability and long service life, thereby enabling the torque from the transmission shaft assembly 100 to be transmitted to the chamfering tool 300 to achieve chamfering of the workpiece.
[0034] In this embodiment, the adjusting hole 301 is a threaded hole, and the adjusting bolt 400 is a bolt. The adjusting bolt 400 is threadedly connected to the adjusting hole 301, thereby controlling the length of the adjusting bolt 400 extending into the adjusting hole 301 and the length remaining outside the adjusting hole 301. This allows control over the upward extension distance of the chamfering cutter 300 to adjust the chamfering depth.
[0035] In some specific embodiments, the drive shaft assembly 100 includes a shaft housing 110, the shaft housing 110 having a receiving hole 101, a shaft body 120 rotatably disposed in the receiving hole 101, the shaft body 120 having a first end and a second end, a coupling 200 fixedly disposed on the first end, the chamfering cutter 300 being fixedly connected to the first end via the coupling 200, and a pulley 130 being drively connected to the second end.
[0036] See Figure 2 as well as Figure 4As shown, in this embodiment, the first end of the shaft 120 is the top, and the second end of the shaft 120 is the bottom. That is, the top of the shaft 120 is fixedly connected to the chamfering cutter 300 through the coupling 200, and the pulley 130 connected to the bottom of the shaft 120 is connected to the power device for transmission. Specifically, the pulley 130 can be connected to the motor by a belt. The motor drives the shaft 120, which is connected to the pulley 130 for transmission, to rotate through the belt, thereby driving the chamfering cutter 300 located at the top of the shaft 120 to rotate and achieve chamfering of the workpiece.
[0037] In some specific embodiments, a first bearing 140 is provided in the receiving hole 101, the outer ring of the first bearing 140 is tightly attached to the inner wall of the receiving hole 101, and the inner ring of the first bearing 140 is tightly attached to the circumferential surface of the shaft 120.
[0038] See Figure 2 and Figure 4 As shown, in order to enable the shaft 120 to rotate better in the receiving hole 101, a first bearing 140 is provided in the receiving hole 101. The inner ring of the first bearing 140 is connected to the outer circumferential surface of the shaft 120, and the outer ring of the first bearing 140 is connected to the inner wall of the receiving hole 101. Specifically, in order to ensure the firmness of the connection, the inner ring of the first bearing 140 can be assembled with the shaft 120 by an interference fit, and the outer ring of the first bearing 140 can also be assembled by an interference fit. However, in practice, different assembly methods can be selected as needed. For example, for the convenience of disassembly and maintenance, a clearance fit can be selected. The specific assembly method is not limited here.
[0039] In some specific embodiments, the number of the first bearings 140 is N, satisfying: N≥2, and the first bearings 140 are uniformly disposed at the first end and the second end of the shaft 120.
[0040] Please continue reading. Figure 2 and Figure 4 As shown, in order to prevent the shaft 120 from shaking during rotation, the number of first bearings 140 on the outer surface of the shaft 120 should be greater than two, and they should be distributed at both ends of the shaft 120. For example, when the number of first bearings 140 is three, the three pulleys 130 can be distributed at both ends and in the middle to support the shaft 120 and prevent the shaft 120 from swinging during rotation due to excessive length.
[0041] In this embodiment, there are two first bearings 140, and the two first bearings 140 are disposed at both ends of the shaft 120. It can be understood that the stability of the shaft 120 during rotation can be improved by the first bearings 140 at both ends.
[0042] In some specific embodiments, the chamfering tool 300 includes a tool body 310, and a connecting shaft 320 is integrally provided at the end of the tool body 310 facing the drive shaft assembly 100, and the adjustment hole 301 is formed in the connecting shaft 320.
[0043] See Figure 2 , Figure 3 and Figure 4 As shown, in order to install the chamfering tool 300, the chamfering tool 300 mainly consists of two parts: a tool body 310 that cuts and chamfers the workpiece by rotation, and a connecting shaft 320 that is detachably connected to the shaft body 120 via a coupling 200. In order to ensure the connection strength between the tool body 310 and the connecting shaft 320, the tool body 310 and the connecting shaft 320 are integrally formed. In order to enable the adjustment of the height of the tool body 310, an adjustment hole 301 is opened at the center of the connecting shaft 320, and the adjustment hole 301 is connected to the outside of the side away from the tool body 310 in the axial direction. Thus, the height of the tool body 310 can be adjusted by turning the adjustment bolt 400 in the adjustment hole 301 to achieve the adjustment of the chamfering depth.
[0044] See Figure 4 and Figure 6 As shown, during installation after adjustment, the bottom of the adjusting bolt 400 will abut against the top end face of the shaft 120, thereby supporting the connecting shaft 320 and the cutter body 310. It can be understood that by adjusting the depth of the adjusting bolt 400 in the adjusting hole 301, the height of the cutter body 310 can be indirectly adjusted, thereby adjusting the height of the cutter body 310 protruding from the carrier plate, and thus indirectly adjusting the depth of the chamfer.
[0045] In some specific embodiments, the top of the drive shaft assembly 100 is provided with a sealing structure 500. The sealing structure 500 includes a first dustproof ring 510 fixedly connected to the drive shaft assembly 100. A convex ring 511 is integrally provided on the upper surface of the first dustproof ring 510. A second dustproof ring 520 is detachably and fixedly provided on the circumferential surface of the coupling 200. An annular groove 521 is opened on the end face of the second dustproof ring 520 facing the direction of the first dustproof ring 510. The convex ring 511 is at least partially located in the annular groove 521.
[0046] Please see Figure 2 , Figure 4 as well as Figure 5As shown, in order to prevent the chips or dust generated by the cutting tool body 310 from entering the receiving hole 101 through the gap between the shaft housing 110 and the shaft body 120 and causing wear to the first bearing 140, a sealing structure 500 is provided on the top of the shaft housing 110 to achieve a seal, thereby preventing dust from entering the receiving hole 101 from the top.
[0047] Specifically, a first dustproof ring 510 is fixedly installed on the top of the shaft housing 110, and a convex ring 511 is provided at the edge of the center hole of the first dustproof ring 510. A second dustproof ring 520 is fitted and fixed on the outer surface of the coupling 200, and an annular groove 521 is opened on the bottom surface of the second dustproof ring 520 facing the direction of the first dustproof ring 510. During installation, the convex ring 511 extends into the annular groove 521, so that the gap between the convex ring 511 and the annular groove 521 is in a "Z" shape, making it more difficult for external dust to enter the receiving hole 101. In order to fix the second dustproof ring 520 to the coupling 200, multiple threaded holes can be evenly spaced on the circumference of the second dustproof ring 520. The bolt is screwed into the threaded hole and extends to tighten against the circumference of the coupling 200, thereby fixing the second dustproof ring 520 to the coupling 200.
[0048] For further details, please refer to Figure 4 and Figure 5 As shown, the top outer peripheral surface of the shaft 120 has a boss, and the first dustproof ring 510 has a stepped groove. The boss extends into the stepped groove, and the gap between the boss and the inner wall of the stepped groove is bent. This gap is connected to the gap between the convex ring 511 and the ring groove 521, making the channel for dust to enter the receiving hole 101 more complex and tortuous, further preventing dust from entering the receiving hole 101 and improving the dustproof effect.
[0049] In some specific embodiments, a second bearing 600 is detachably and fixedly installed at the end of the cutter body 310 away from the connecting shaft 320. When the workpiece is chamfered, the second bearing 600 will abut against the workpiece to achieve the workpiece assembly. As the workpiece moves and the cutter body 310 rotates, the edges and corners of the workpiece are chamfered.
[0050] The working process of this utility model is as follows: Power is transmitted to the shaft 120 of the transmission shaft assembly 100 through the pulley 130, driving it to rotate; the shaft 120 is rigidly connected to the connecting shaft 320 of the chamfering cutter 300 through the coupling 200, driving the cutter body 310 to rotate synchronously. The adjusting bolt 400 is screwed into the adjusting hole 301 of the chamfering cutter 300. During adjustment, the chamfering cutter 300 needs to be disassembled, and the adjusting bolt 400 is rotated to change its length extending out of the adjusting hole 301; the bottom of the adjusting bolt 400 abuts against the end face of the shaft 120 at the top of the transmission shaft assembly 100. The protrusion height of the chamfering cutter 300 is controlled by the extension length of the adjusting bolt 400, thereby adjusting the chamfering size; after reinstallation, the cutter body 310 rotates with the shaft 120 to chamfer the workpiece.
[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A chamfering adjustment device, characterized in that, include: Drive shaft assembly (100); A coupling (200) is fixedly disposed at the rotating end of the transmission shaft assembly (100), and the coupling (200) has a mounting hole; A chamfering cutter (300) is disposed on the top of the drive shaft assembly (100). The chamfering cutter (300) is detachably connected to the drive shaft assembly (100) via the coupling (200). The chamfering cutter (300) has an adjustment hole (301). An adjusting bolt (400) is screwed into the adjusting hole (301).
2. The chamfering adjustment device according to claim 1, characterized in that: The drive shaft assembly (100) includes a shaft housing (110) with a receiving hole (101). A shaft body (120) is rotatably disposed in the receiving hole (101). The shaft body (120) has a first end and a second end. A coupling (200) is fixedly disposed on the first end. The chamfering cutter (300) is fixedly connected to the first end through the coupling (200). A pulley (130) is drivenly connected to the second end.
3. The chamfering adjustment device according to claim 2, characterized in that: A first bearing (140) is provided in the receiving hole (101). The outer ring of the first bearing (140) is closely attached to the inner wall of the receiving hole (101), and the inner ring of the first bearing (140) is closely attached to the circumferential surface of the shaft (120).
4. The chamfering adjustment device according to claim 3, characterized in that: The number of the first bearings (140) is N, which satisfies: N≥2. The first bearings (140) are evenly arranged at the first end and the second end of the shaft (120).
5. The chamfering adjustment device according to claim 1, characterized in that: The chamfering tool (300) includes a tool body (310), and a connecting shaft (320) is integrally provided at the end of the tool body (310) facing the drive shaft assembly (100), and the adjustment hole (301) is opened in the connecting shaft (320).
6. The chamfering adjustment device according to claim 1, characterized in that: The top of the drive shaft assembly (100) is provided with a sealing structure (500). The sealing structure (500) includes a first dustproof ring (510) fixedly connected to the drive shaft assembly (100). A convex ring (511) is integrally provided on the upper surface of the first dustproof ring (510). A second dustproof ring (520) is detachably fixed on the circumferential surface of the coupling (200). An annular groove (521) is opened on the end face of the second dustproof ring (520) facing the first dustproof ring (510). The convex ring (511) is at least partially located in the annular groove (521).
7. A chamfering adjustment device according to claim 5, characterized in that: The end of the blade body (310) facing away from the connecting shaft (320) is detachably fixed with a second bearing (600).
8. A chamfering machine, characterized in that: Includes the chamfering adjustment device as described in any one of claims 1 to 7.