A CNC corner sawing machine

Abstract

This utility model discloses a CNC corner sawing machine, including a frame with opposing material support tables on the frame. A corner cutting mechanism is arranged between the two material support tables on the frame. The corner cutting mechanism includes an ejector and two corner cutting blades arranged side by side. The housings of the two corner cutting blades are fitted with a releasable locking mechanism, allowing the ejector to eject either one corner cutting blade or both corner cutting blades. When cornering a single-end workpiece, the ejector will only drive the one corner cutting blade out for sawing; while when cornering a double-end workpiece, since the housings of the two corner cutting blades are in a fixed state, the ejector will eject both corner cutting blades simultaneously for sawing. Compared with the prior art, the CNC corner sawing machine of this utility model can simultaneously saw both ends of a workpiece, and the feed of the corner cutting blades is achieved through the same ejector, thus reducing the manufacturing cost of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of corner sawing machine technology, and in particular, to a CNC corner sawing machine. Background Technology

[0002] A corner cutting machine is a specialized cutting device designed for precise polygonal cutting of various materials, including 45-degree bevel cutting. It is widely used in construction, decoration, furniture manufacturing, handicrafts processing, and automotive repair, efficiently and accurately cutting wood, metal, plastic, stone, and other materials. With its precise design, ease of operation, and smooth cutting edges, the corner cutting machine is an important tool for improving processing accuracy and production efficiency.

[0003] Currently, Chinese patent CN112247254A discloses a 45-degree corner cutting machine for aluminum furniture processing, including a worktable with a first angle baffle and a second angle baffle symmetrically arranged on the worktable. A corner cutting blade is placed between the two angle baffles, and a clamping plate is also provided on the worktable corresponding to each angle baffle. During corner cutting, the workpiece is fixed to the corresponding angle baffle by the clamping plate according to the corner cutting direction, and then the corner cutting blade is controlled to advance and cut the workpiece.

[0004] However, this type of corner cutting machine can only complete the sawing of a workpiece in a single direction in one pass. This is because, considering factors such as machining allowance and precision, a single corner cutting blade cannot simultaneously and accurately cut both sides of the workpiece. For example, when both ends of a workpiece need to be cornered, it is necessary to cut the workpiece at one end first, then change the direction and cut again. To address this, two corner cutting blades could be designed to simultaneously saw different ends; however, two corner cutting blades require two separate feeding systems, increasing the manufacturing cost of the equipment. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a CNC corner sawing machine.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A CNC corner sawing machine includes a frame with opposing material support tables on the frame. A corner cutting mechanism is provided on the frame between the two material support tables. The corner cutting mechanism includes an ejector and two corner cutting blades arranged side by side. The housings of the two corner cutting blades are adapted to be releasably locked so that the ejector ejects one or both corner cutting blades.

[0008] Preferably, the ejector component includes a linear module, a cylinder, or a hydraulic cylinder.

[0009] Preferably, a fixing block is provided on the ejector end of the ejector, the fixing block is located between the housings of the two corner cutting blades, and fixing members are provided on both sides of the fixing block. The fixing members are used to fix the housings of the corner cutting blades on the corresponding sides to the fixing block. When both fixing members are in a fixed state, the relative position of the housings of the two corner cutting blades is locked.

[0010] Preferably, the fixing element includes an electromagnet, and at least a portion of the housing of the corner cutter has magnetic attraction points.

[0011] Preferably, the fixing member includes an ejectable connecting rod, and the housing of the corner cutter has a corresponding connecting hole, into which the connecting rod can be inserted.

[0012] Preferably, a drive shaft is spring-loaded on the end face of the material support platform, and the sliding cavity of the drive shaft on the corresponding side is connected to the sliding cavity of the connecting rod through a pipeline, forming a hydraulic flow path.

[0013] Preferably, the frame is provided with a clamping plate that can be ejected outwards, the clamping plate being used to press the workpiece tightly against the material support table.

[0014] The beneficial effects of this invention are as follows: when cutting corners on a single-end workpiece, the ejector will only drive the corner cutting blade to be ejected for sawing; while when cutting corners on a double-end workpiece, since the housings of the two corner cutting blades are in a fixed state, the ejector will simultaneously eject both corner cutting blades for sawing. Compared with the prior art, the CNC corner sawing machine of this invention can simultaneously saw both ends of the workpiece, and the feed of the corner cutting blades is achieved through the same ejector, thus reducing the manufacturing cost of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0016] Figure 2 This is a cross-sectional schematic diagram of an embodiment;

[0017] Figure 3 This is a schematic diagram of the structure of an electromagnet;

[0018] Figure 4 This is a schematic diagram of the drive shaft.

[0019] Figure 5 This is a schematic diagram of the connecting rod.

[0020] Reference numerals in the attached drawings: 1. Frame; 2. Material support table; 3. Corner cutting mechanism; 4. Ejector; 5. Corner cutting blade; 6. Fixing block; 7. Fixing component; 8. Electromagnet; 9. Connecting rod; 10. Connecting hole; 11. Drive shaft; 12. Clamping plate; 13. Machine housing; 14. Workpiece. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1 to 5 As shown, a CNC corner sawing machine includes a frame 1, on which symmetrically arranged support tables 2 are mounted, for example, forming a 90-degree angle between the two support tables 2. At the axis of symmetry between the two support tables 2, a corner cutting mechanism 3 is also mounted on the frame 1. Broadly speaking, the corner cutting mechanism 3 consists of a rotatable corner cutting blade 5 driven by a drive source such as a motor, and the corner cutting blade 5 is generally adapted to move along the aforementioned axis of symmetry, thereby completing the sawing of the workpiece 14 placed on the support tables 2.

[0023] The difference lies in that the corner-cutting mechanism 3 disclosed herein includes two corner-cutting blades 5 arranged side by side, but the feeding of the two corner-cutting blades 5 is achieved through an ejector 4. The housings 13 of the two corner-cutting blades 5 are adapted to be releasably locked. When locked, the ejector 4 ejects both corner-cutting blades 5 simultaneously; when unlocked, the ejector 4 ejects only one corner-cutting blade 5.

[0024] In one possible example, the ejector 4 includes a linear module, a cylinder, or a hydraulic cylinder. The ejector 4 itself can move laterally under the ejection of another ejector (not shown). For example, when the ejector 4 is opposite the housing 13 of its cutting blade 5, the ejection of the ejector 4 will cause the corresponding cutting blade 5 to be fed; and when the housings 13 of the two cutting blades 5 are fixed together, the ejection of the ejector 4 will cause the two cutting blades 5 to be ejected synchronously.

[0025] As an alternative, the ejector 4 itself does not need to move laterally. It is adapted and installed between the housings 13 of the two corner cutters 5. In particular, the fixing block 6 on the ejector end of the ejector 4 is located between the housings 13 of the two corner cutters 5. Fixing members 7 are provided on both sides of the fixing block 6. When the fixing member 7 is fixed to the housing 13 of the corresponding corner cutter 5, the ejection of the ejector 4 will only drive the corner cutter 5 to feed; while when both fixing members 7 are fixed, the ejection of the ejector 4 will drive both corner cutters 5 to feed synchronously. This example also simplifies the other ejector required in the above example, further reducing the manufacturing cost of the equipment.

[0026] In some embodiments, the fixing member 7 may include an electromagnet 8, and the housing 13 of the corner cutter 5 is at least partially constructed with magnetic attraction points. The releasable fixing between the housing 13 of the corner cutter 5 and the fixing block 6 is achieved by the attraction between the electromagnet 8 and the magnetic attraction points. For example, a magnetic block may be provided on the housing 13 of the corner cutter 5 to form magnetic attraction points, or the housing 13 of the corner cutter 5 may be made entirely of iron.

[0027] In other embodiments, the fixing member 7 may also include an ejectable engaging rod 9, and the housing 13 of the corner cutter 5 is provided with a corresponding engaging hole 10. It can be understood that when the engaging rod 9 is ejected and inserted into the corresponding engaging hole 10, the ejection of the ejector 4 will cause the corner cutter 5 to be ejected. Thus, after both engaging rods 9 are inserted into their respective corresponding engaging holes 10, the ejection of the ejector 4 will cause the two corner cutters 5 to be ejected synchronously.

[0028] For example, the ejection of the connecting rod 9 can also be achieved by pneumatic, hydraulic or magnetic braking. In a preferred example, a drive shaft 11 is spring-loaded on the end face of the material support 2 by a spring (not shown), and the sliding cavity of the drive shaft 11 on the corresponding side is connected to the sliding cavity of the connecting rod 9 by a pipe, thereby forming a hydraulic flow path between them.

[0029] During the corner cutting operation, as the workpiece 14 is pressed onto the support table 2, the drive shaft 11 is gradually pressed in. At this time, fluid is pumped into the sliding cavity of the corresponding connecting rod 9, causing the connecting rod 9 to be ejected and inserted into the corresponding connecting hole 10. It can be imagined that if workpieces 14 are pressed onto both support tables 2, the two connecting rods 9 will automatically engage into the two connecting holes 10, thereby achieving synchronous ejection of the two corner cutting blades 5. For example, the pressing of the workpiece 14 onto the support table 2 can be achieved by a clamping plate 12 that can be ejected and installed on the frame 1. The ejection of the clamping plate 12 can be achieved by means of a cylinder or the like.

[0030] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A CNC corner sawing machine, comprising a frame (1), wherein material support tables (2) are disposed opposite each other on the frame (1), and a corner cutting mechanism (3) is provided on the frame (1) between the two material support tables (2), characterized in that: The corner cutting mechanism (3) includes an ejector (4) and two corner cutting blades (5) arranged side by side. The housings of the two corner cutting blades (5) are adapted to be releasably locked so that the ejector (4) ejects one or both corner cutting blades (5).

2. The CNC corner sawing machine according to claim 1, characterized in that: The ejector (4) includes a linear module, a cylinder or a hydraulic cylinder.

3. The CNC corner sawing machine according to claim 1 or 2, characterized in that: A fixing block (6) is provided on the ejector end of the ejector (4). The fixing block (6) is located between the housings of the two corner cutters (5). Fixing members (7) are provided on both sides of the fixing block (6). The fixing members (7) are used to fix the housings of the corner cutters (5) on the corresponding sides to the fixing block (6). When both fixing members (7) are in a fixed state, the relative positions of the housings of the two corner cutters (5) are locked.

4. The CNC corner sawing machine according to claim 3, characterized in that: The fastener (7) includes an electromagnet (8), and at least part of the housing of the corner cutter (5) has a magnetic attraction point.

5. The CNC corner sawing machine according to claim 3, characterized in that: The fastener (7) includes an extendable connecting rod (9), and the housing of the corner cutter (5) has a corresponding connecting hole (10), and the connecting rod (9) can be inserted into the connecting hole (10).

6. The CNC corner sawing machine according to claim 5, characterized in that: A drive shaft (11) is spring-loaded on the end face of the material support platform (2). The sliding cavity of the drive shaft (11) on the corresponding side is connected to the sliding cavity of the connecting rod (9) through a pipeline, and a hydraulic flow path is formed.

7. The CNC corner sawing machine according to claim 1 or 6, characterized in that: A clamping plate (12) is provided on the frame (1) and can be pushed out. The clamping plate (12) is used to press the workpiece against the material support table (2).

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