Table and chair board chamfering device

Abstract

A chamfering device for table and chair panels, relating to the field of table and chair panel devices, includes an operating table, a limiting plate, a power box, and a power assembly. The limiting plate is fixedly connected to the operating table, and the power box is fixedly connected to the operating table. The operating table has a cutter head hole located at the connection between the operating table and the limiting plate. The power assembly is fixedly connected to the power box and has a table and chair panel density adaptive chamfering component. The table and chair panel density adaptive chamfering component includes a tapered chamfering cutter, a cutter head clamp, a rotating shaft, a cutter head pressure adaptive component, and a cutter head micro-vibration component. The rotating shaft is fixedly connected to the power assembly and is connected to the cutter head pressure adaptive component. The cutter head pressure adaptive component is connected to the cutter head clamp through the cutter head micro-vibration component, and the cutter head clamp is connected to the tapered chamfering cutter. The beneficial effect is to avoid excessive pressure from the tapered chamfering cutter on soft or uniformly dense materials during cutting, which could cause wavy edges on the panel.

Description

Technical Field

[0001] This utility model relates to the technical field of table and chair board devices, and in particular to a chamfering device for table and chair boards. Background Technology

[0002] As is well known, tables and chairs are common items in daily life. During the processing of table and chair boards, it is necessary to bevel the edges and corners to improve practicality and aesthetics.

[0003] Chinese patent CN222628080U describes a chamfering device for table and chair panels used in table and chair production. The device includes a bottom mounting base, a support plate welded to the bottom mounting base via a support seat, and a clamping mechanism and a chamfering cutting blade mounted on the support plate. However, in actual use, the following problems still exist:

[0004] High-density fiberboard (HDF) is a common material for manufacturing table and chair panels. It is made of wood fibers and adhesives under high pressure and often contains hard nodes. HDF is usually beveled by sliding it against a chamfering knife. However, since the chamfering knife is usually fixed to the power unit, the pressure on the board cannot be adjusted automatically. This results in excessive pressure when chamfering soft or uniformly dense materials, which can cause wavy edges. When chamfering hard nodes, insufficient pressure can prevent rapid cutting, leading to defects such as chipping and cracking.

[0005] Therefore, a chamfering device for table and chair panels is proposed. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a chamfering device for table and chair boards.

[0007] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0008] A table and chair panel chamfering device includes an operating platform, a limiting plate, a power box, and a power assembly. The bottom end of the limiting plate is fixedly connected to the upper surface of the operating platform, and the top end of the power box is fixedly connected to the lower surface of the operating platform. A cutting head hole is provided on the operating platform, located at the connection between the operating platform and the limiting plate. The power assembly is located below the cutting head hole and fixedly connected to the inner wall of the power box. The power assembly is equipped with a table and chair panel density adaptive chamfering component. The corner component includes a tapered chamfering cutter, a cutter head clamp, a rotating shaft, a cutter head pressure adaptive component, and a cutter head micro-vibration component. The bottom end of the rotating shaft is fixedly connected to the power output end of the power component, and the top end of the rotating shaft is connected to the bottom end of the cutter head pressure adaptive component. The top end of the cutter head pressure adaptive component is connected to the bottom end of the cutter head clamp through the cutter head micro-vibration component. The top end of the cutter head clamp is detachably fixedly connected to the bottom end of the tapered chamfering cutter, and the top end of the tapered chamfering cutter is located inside the cutter head hole.

[0009] The adaptive pressure component for the cutting head includes a connecting tube, a support slider, a fixing plate, and a preload spring. The inner wall of the connecting tube near its bottom end has several supporting sliding limiting grooves, which are evenly distributed circumferentially along the axis of the connecting tube and are inclinedly positioned on its inner wall. The top end of the rotating shaft is located inside the connecting tube and contacts its inner wall. One end of the support slider is fixedly connected to the outer wall of the rotating shaft, and the other end of the support slider is located within the supporting sliding limiting groove and slidably connected to its inner wall. The side wall of the cutting head clamp is located inside the connecting tube and connected to its inner wall via the cutting head micro-vibration component. The fixing plate is located between the support slider and the cutting head clamp and is fixedly connected to the inner wall of the connecting tube. The upper surface of the fixing plate is fixedly connected to the bottom end of the cutting head clamp via the preload spring.

[0010] The cutter head micro-vibration assembly comprises several components, which are evenly distributed circumferentially along the axis of the connecting tube. Each cutter head micro-vibration assembly includes a top support slider and a top support spring. The outer wall of the cutter head clamp is provided with a radial sliding groove, and the upper part of the inner wall of the connecting tube is provided with a sliding wedge-shaped groove. One end of the top support slider is located in the radial sliding groove and is slidably connected to the inner wall of the radial sliding groove. The other end of the top support slider is located in the sliding wedge-shaped groove and is slidably connected to the connecting tube. The top support slider is connected to the cutter head clamp through the top support spring located in the radial sliding groove.

[0011] The lower surface of the top support slider located at one end of the sliding wedge groove is an inclined surface that slopes downward along the axis of the rotating shaft, and the shape of the sliding wedge groove corresponds to the shape of the top support slider located at one end of the sliding wedge groove.

[0012] The angle between the extending direction of the supporting sliding limiting groove and the axial direction of the rotating shaft ranges from 10° to 30°.

[0013] The connecting tube is provided with a support ring, the inner wall of the support ring is in contact with the outer wall of the connecting tube, the support ring is provided with a support frame, and the outer wall of the support ring is connected to the inner wall of the power box through the support frame.

[0014] The operating platform is provided with an auxiliary limiting sliding plate, which is slidably connected to the upper surface of the operating platform through a sliding member.

[0015] Compared with the prior art, this utility model has the following beneficial effects: The pre-compression spring provides stable support to the cutter head clamp, preventing excessive pressure from the conical chamfering cutter on soft or uniformly dense materials during cutting, thus avoiding wavy edges on the sheet metal and improving chamfering accuracy; Compression of the pre-compression spring increases the cutting force of the conical chamfering cutter on the sheet metal, preventing insufficient pressure when chamfering hard nodes, which could lead to chipping or breakage, thus improving chamfering accuracy; Compression of the top support spring by the top support slider, and the inward contraction along the radial sliding groove, causes micro-vibration in the conical chamfering cutter. This micro-vibration creates a high-frequency impact on hard nodes, further accelerating the cutting speed of the conical chamfering cutter on hard nodes. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the power box of this utility model;

[0018] Figure 3 This is a frontal cross-sectional view of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the connecting circular tube of this utility model;

[0020] Figure 5 This utility model Figure 3 A magnified structural diagram of point A is shown below;

[0021] Figure 6 This utility model Figure 3 A magnified structural diagram of point B is shown.

[0022] 1. Operating platform; 2. Limiting plate; 3. Power box; 4. Power assembly; 5. Cutting head hole; 6. Conical chamfering cutter; 7. Cutting head clamp; 8. Rotating shaft; 9. Connecting round tube; 10. Support slider; 11. Fixing plate; 12. Preload spring; 13. Support sliding limit groove; 14. Top support slider; 15. Top support spring; 16. Radial sliding groove; 17. Sliding wedge groove; 18. Support ring; 19. Support frame; 20. Auxiliary limit sliding plate. Detailed Implementation

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0024] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0025] like Figure 1-2 As shown, a table and chair panel chamfering device includes an operating platform 1, a limiting plate 2, a power box 3, and a power assembly 4. The bottom end of the limiting plate 2 is fixedly connected to the upper surface of the operating platform 1, and the top end of the power box 3 is fixedly connected to the lower surface of the operating platform 1. The operating platform 1 is provided with a cutting head hole 5, which is located at the connection between the operating platform 1 and the limiting plate 2. The power assembly 4 is located below the cutting head hole 5 and fixedly connected to the inner wall of the power box 3. The power assembly 4 is provided with a table and chair panel density adaptive chamfering component, which automatically adjusts the chamfering angle based on the table and chair panel density. The chamfering components include a tapered chamfering cutter 6, a cutter head clamp 7, a rotating shaft 8, a cutter head pressure adaptive component, and a cutter head micro-vibration component. The bottom end of the rotating shaft 8 is fixedly connected to the power output end of the power component 4, and the top end of the rotating shaft 8 is connected to the bottom end of the cutter head pressure adaptive component. The top end of the cutter head pressure adaptive component is connected to the bottom end of the cutter head clamp 7 through the cutter head micro-vibration component. The top end of the cutter head clamp 7 is detachably fixedly connected to the bottom end of the tapered chamfering cutter 6, and the top end of the tapered chamfering cutter 6 is located inside the cutter head hole 5.

[0026] like Figure 3 and Figure 5As shown, the adaptive pressure assembly for the cutting head includes a connecting tube 9, a support slider 10, a fixing plate 11, and a preload spring 12. Several supporting sliding limiting grooves 13 are provided near the bottom of the inner wall of the connecting tube 9. These grooves are evenly distributed circumferentially along the axis of the connecting tube 9 and are inclined on the inner wall of the connecting tube 9. The top end of the rotating shaft 8 is located inside the connecting tube 9 and contacts the inner wall of the connecting tube 9. One end of the support slider 10 is fixedly connected to the outer wall of the rotating shaft 8, and the other end of the support slider 10 is located inside the supporting sliding limiting groove 13 and slidably connected to the inner wall of the supporting sliding limiting groove 13. The side wall of the cutting head clamp 7 is located inside the connecting tube 9 and connected to the inner wall of the connecting tube 9 via a cutting head micro-vibration assembly. The fixing plate 11 is located between the support slider 10 and the cutting head clamp 7 and is fixedly connected to the inner wall of the connecting tube 9. The upper surface of the fixing plate 11 is fixedly connected to the bottom end of the cutting head clamp 7 via the preload spring 12.

[0027] like Figure 3 and Figure 6 As shown, several micro-vibration assemblies for the cutting head are provided. The micro-vibration assemblies for the cutting head are evenly distributed circumferentially along the axis of the connecting circular tube 9. Each micro-vibration assembly for the cutting head includes a top support slider 14 and a top support spring 15. A radial sliding groove 16 is provided on the outer wall of the cutting head clamp 7. A sliding wedge-shaped groove 17 is provided on the upper part of the inner wall of the connecting circular tube 9. One end of the top support slider 14 is located in the radial sliding groove 16 and is slidably connected to the inner wall of the radial sliding groove 16. The other end of the top support slider 14 is located in the sliding wedge-shaped groove 17 and is slidably connected to the connecting circular tube 9. The top support slider 14 is connected to the cutting head clamp 7 through the top support spring 15 located in the radial sliding groove 16.

[0028] like Figure 3 and Figure 6 As shown, the lower surface of the top support slider 14 located at one end of the sliding wedge groove 17 is an inclined surface that slopes downward along the axis of the rotating shaft 8, and the shape of the sliding wedge groove 17 corresponds to the shape of the top support slider 14 located at one end of the sliding wedge groove 17.

[0029] like Figure 4 As shown, the angle between the extension direction of the supporting sliding limiting groove 13 and the axial direction of the rotating shaft 8 ranges from 10° to 30°.

[0030] like Figure 2-3 As shown, a support ring 18 is provided on the connecting round pipe 9. The inner wall of the support ring 18 is in contact with the outer wall of the connecting round pipe 9. A support frame 19 is provided on the support ring 18. The outer wall of the support ring 18 is connected to the inner wall of the power box 3 through the support frame 19.

[0031] like Figure 1-3 As shown, the operating table 1 is provided with an auxiliary limiting sliding plate 20, which is slidably connected to the upper surface of the operating table 1 through a sliding member.

[0032] The work process is as follows:

[0033] S1. When in use, start the power component 4 to drive the rotating shaft 8 to rotate. The rotating shaft 8 drives the connecting round tube 9 to rotate as a whole through the cooperation of the support slider 10 and the inclined support sliding limit groove 13 on the inner wall of the connecting round tube 9. The connecting round tube 9 drives the cutter head clamp 7 and the conical chamfering cutter 6 to rotate synchronously through the cutter head micro-vibration component. The plate to be chamfered is pushed along the limit plate 2 across the operating table 1, and the chamfering operation can be performed.

[0034] S2, during the cutting process, when chamfering soft or uniformly dense materials, the cutting reaction force generated by the sheet metal on the tapered chamfering tool 6 is relatively small. The preload spring 12 lifts the tool head clamp 7, and the tool head clamp 7 and the connecting round tube 9 are completely engaged in the sliding wedge groove 17 by the top support slider 14 pushed out by the top support spring 15. The preload spring 12 provides stable support force to the tool head clamp 7, avoiding excessive pressure from the tapered chamfering tool 6 on soft or uniformly dense materials during cutting, which would cause wavy patterns on the edge of the sheet metal and improve the chamfering accuracy.

[0035] S3, during the cutting process, when chamfering hard nodes, the cutting resistance of the tapered chamfering cutter 6 increases sharply when it encounters the hard node. At the same time, the cutting reaction force of the plate on the tapered chamfering cutter 6 increases, and the downward pressure of the tapered chamfering cutter 6 on the cutter head clamp 7 increases. The cutter head clamp 7 moves down and compresses the preload spring 12. Since the supporting sliding limit groove 13 is inclinedly set on the inner wall of the connecting round tube 9, it forces the connecting round tube 9 to move upward along the axis of the rotating shaft 8 while rotating, thereby pushing the tapered chamfering cutter 6 to press against the plate. By compressing the preload spring 12, the cutting force of the tapered chamfering cutter 6 on the plate is increased, avoiding insufficient pressure when the tapered chamfering cutter 6 chamfers hard nodes, which would prevent the hard nodes from being quickly cut and causing chipping or breakage, thus improving the chamfering accuracy.

[0036] S4, during the cutting process, when chamfering the hard node, the connecting round tube 9 moves upward relative to the cutter head clamp 7, and the inclined surface of the sliding wedge groove 17 presses against the inclined surface at the end of the top support slider 14, causing the top support slider 14 to compress the top support spring 15 and generate a slight contraction inward along the radial sliding groove 16. At this time, the inclined surface at the end of the top support slider 14 and the inclined surface of the sliding wedge groove 17 support the cutter head clamp. When rotating, the conical chamfering cutter 6 generates a micro-vibration. The micro-vibration generated by the conical chamfering cutter 6 forms a high-frequency impact on the hard node, further accelerating the cutting speed of the conical chamfering cutter 6 on the hard node.

[0037] S5, after the hard block is crushed, the cutting resistance returns to normal, the preload spring 12 releases its elastic potential energy, the preload spring 12 pushes the connecting round tube 9 to move down and reset, the preload spring 12 returns to the pre-tight state, and the top support spring 15 pushes the top support slider 14 to re-fit with the sliding wedge groove 17.

[0038] If the angle between the extension direction of the supporting sliding limiting groove 13 and the axis of the rotating shaft 8 is too small, the axial component of the force on the connecting round tube 9 will be too small, resulting in insufficient upward thrust. If the angle is too large, the connecting round tube 9 will not be able to slide smoothly and will enter a self-locking state. The angle is preferably 10° to 30°. In order to stabilize the connecting round tube 9 in a micro-vibration state, a support ring 18 fixed by the support frame 19 is provided on its outer wall. In order to improve the stability of the plate sliding on the operating table 1 when chamfering, an auxiliary limiting sliding plate 20 that can cooperate with the limiting plate 2 is added. The sliding plate is slidably connected to the operating table 1.

[0039] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A chamfering device for table and chair panels, comprising an operating platform (1), a limiting plate (2), a power box (3), and a power assembly (4), wherein the bottom end of the limiting plate (2) is fixedly connected to the upper surface of the operating platform (1), the top end of the power box (3) is fixedly connected to the lower surface of the operating platform (1), the operating platform (1) is provided with a cutting head hole (5), the cutting head hole (5) is located at the connection between the operating platform (1) and the limiting plate (2), and the power assembly (4) is located below the cutting head hole (5) and fixedly connected to the inner wall of the power box (3), characterized in that: The power assembly (4) is provided with a table and chair board density adaptive chamfering component. The table and chair board density adaptive chamfering component includes a conical chamfering blade (6), a blade head clamp (7), a rotating shaft (8), a blade head pressure adaptive component, and a blade head micro-vibration component. The bottom end of the rotating shaft (8) is fixedly connected to the power output end of the power assembly (4). The top end of the rotating shaft (8) is connected to the bottom end of the blade head pressure adaptive component. The top end of the blade head pressure adaptive component is connected to the bottom end of the blade head clamp (7) through the blade head micro-vibration component. The top end of the blade head clamp (7) is detachably fixedly connected to the bottom end of the conical chamfering blade (6). The top end of the conical chamfering blade (6) is located inside the blade head hole (5).

2. The device according to claim 1, wherein: The adaptive pressure component for the cutting head includes a connecting tube (9), a support slider (10), a fixing plate (11), and a preload spring (12). The inner wall of the connecting tube (9) near its bottom end is provided with several supporting sliding limiting grooves (13). These grooves (13) are evenly distributed circumferentially along the axis of the connecting tube (9), and are inclinedly positioned on the inner wall of the connecting tube (9). The top end of the rotating shaft (8) is located inside the connecting tube (9) and contacts the inner wall of the connecting tube (9). One end of the support slider (10) is connected to the rotating shaft (8). The outer wall of the support slider (10) is fixedly connected, and the other end of the support slider (10) is located in the support sliding limit groove (13) and is slidably connected to the inner wall of the support sliding limit groove (13). The side wall of the cutter head clamp (7) is located in the connecting round tube (9) and is connected to the inner wall of the connecting round tube (9) through the cutter head micro-vibration assembly. The fixing plate (11) is located between the support slider (10) and the cutter head clamp (7) and is fixedly connected to the inner wall of the connecting round tube (9). The upper surface of the fixing plate (11) is fixedly connected to the bottom end of the cutter head clamp (7) through the preload spring (12).

3. A table and chair board chamfering device as claimed in claim 2, wherein: The cutter head micro-vibration assembly is provided in several parts, and the cutter head micro-vibration assembly is evenly distributed circumferentially along the axis of the connecting round tube (9). The cutter head micro-vibration assembly includes a top support slider (14) and a top support spring (15). The outer wall of the cutter head clamp (7) is provided with a radial sliding groove (16). The upper part of the inner wall of the connecting round tube (9) is provided with a sliding wedge-shaped groove (17). One end of the top support slider (14) is located in the radial sliding groove (16) and is slidably connected to the inner wall of the radial sliding groove (16). The other end of the top support slider (14) is located in the sliding wedge-shaped groove (17) and is slidably connected to the connecting round tube (9). The top support slider (14) is connected to the cutter head clamp (7) through the top support spring (15) located in the radial sliding groove (16).

4. A table and chair board chamfering device as claimed in claim 3, wherein: The lower surface of the top support slider (14) located at one end of the sliding wedge groove (17) is an inclined surface that slopes downward along the axis of the rotating shaft (8). The shape of the sliding wedge groove (17) corresponds to the shape of the top support slider (14) located at one end of the sliding wedge groove (17).

5. The device according to claim 2, wherein: The angle between the extending direction of the supporting sliding limiting groove (13) and the axial direction of the rotating shaft (8) is in the range of 10° to 30°.

6. A chamfering device for table and chair panels according to claim 4, characterized in that: The connecting tube (9) is provided with a support ring (18), the inner wall of the support ring (18) is in contact with the outer wall of the connecting tube (9), the support ring (18) is provided with a support frame (19), and the outer wall of the support ring (18) is connected to the inner wall of the power box (3) through the support frame (19).

7. A chamfering device for table and chair panels according to claim 4, characterized in that: The operating table (1) is provided with an auxiliary limiting sliding plate (20), which is slidably connected to the upper surface of the operating table (1) through a sliding member.

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