Round corner cutter

Abstract

The utility model belongs to the technical field of rounded corner cutters, and particularly relates to a rounded corner cutter, which comprises a cutter handle, a cutter rod, a sleeve and a cutter head, the cutter rod is provided with an extension part, the sleeve is sleeved on the cutter rod, and the end part of the sleeve is abutted against the extension part; the tool bit is mounted at one end of the tool bar, and a plurality of cutting blades are arranged on the tool bit; the guide bearing is rotatably mounted on the top of the tool bit; a plurality of inserting blocks are arranged on the extending part, a plurality of inserting holes are formed in the end, abutting against the extending part, of the sleeve, the inserting blocks and the inserting holes are correspondingly matched in an inserted mode, and the cutter bar and the sleeve are fixedly connected through a fastener; the tool has the advantages that the sleeve can be selected to be mounted or dismounted according to the clamping radius of the clamping sleeve, and the handle diameter of the tool handle is adjusted, so that the tool handle can be compatible with different types of clamping sleeves, the application range is widened, and practicability is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of round corner cutter, especially relates to a round corner cutter. BACKGROUND

[0002] With the continuous development of wood mechanical processing industry, the types of milling cutters used for wood processing are also more and more, and the round corner cutter is one of the types of milling cutters used for wood processing.

[0003] The round corner cutter is usually installed on the clamping sleeve of the processing equipment during use, and then the clamping sleeve is controlled to rotate by the driving device of the processing equipment to drive the round corner cutter to rotate, so that the wood is cut. Since the clamping radii of the clamping sleeves of different processing equipment are not the same, the clamping radius of some processing equipment that can be held by the worker is usually small, and the clamping radius of some large table type processing equipment is usually large.

[0004] In the prior art, the round corner cutters for the same round corner radius processing are usually designed to have large handle diameters and small handle diameters to adapt to processing equipment with different clamping radii, but the types of large handle diameters and small handle diameters of the round corner cutters for each round corner radius processing will greatly increase the production cost. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above-mentioned technical problems, and provides a round corner cutter to solve the above-mentioned technical problems.

[0006] Therefore, the utility model provides a round corner cutter, which comprises:

[0007] The handle comprises a shank and a sleeve, the shank is provided with an extension, the sleeve is sleeved on the shank, and the end of the sleeve is in abutment with the extension;

[0008] The cutter head is installed at one end of the shank, and a plurality of cutting blades are arranged on the cutter head;

[0009] The guide bearing is rotatably installed on the top of the cutter head;

[0010] The extension is provided with a plurality of insertion blocks, the end of the sleeve in abutment with the extension is provided with a plurality of insertion holes, the plurality of insertion blocks and the plurality of insertion holes are correspondingly inserted and matched, and the shank and the sleeve are fixedly connected through the fastener.

[0011] Further, the fastener is a fixed screw, and the fixed screw is threadedly connected with the shank along the radial direction through the sleeve.

[0012] Further, the sleeve is provided with a counterbore, and the fixed screw is installed in the counterbore.

[0013] Further, the utility model further comprises:

[0014] A plurality of elastic pads are correspondingly arranged in each insertion hole and respectively abut against the end of each insertion block.

[0015] Furthermore, the peripheral outer wall of the extension portion is flush with the peripheral outer wall of the sleeve.

[0016] Furthermore, the cutter head also includes:

[0017] The chip removal groove is arranged between two adjacent cutting blades.

[0018] Furthermore, the cutter rod and the cutter head are connected as one piece.

[0019] Furthermore, an arc-shaped chamfer structure is provided at the integral connection between the cutter head and the cutter rod.

[0020] The beneficial effects of the utility model are:

[0021] When the fillet cutter is in use, the sleeve can be installed or removed according to the clamping radius of the sleeve, and the shank diameter of the tool handle can be adjusted, so that the tool handle can be compatible with different types of sleeves, ensuring that the fillet cutter can be firmly and reliably installed on the processing equipment, effectively improving the scope of application and enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a structural cross-sectional view of the handle of the utility model;

[0024] The marks in the figure are:

[0025] 1. Tool handle; 11. Tool bar; 111. Extension; 112. Insert; 12. Sleeve; 121. Socket; 122. Countersunk; 2. Tool head; 21. Cutting blade; 22. Chip groove; 3. Guide bearing; 4. Fastener; 5. Elastic spacer. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0028] Example 1:

[0029] This embodiment provides a fillet knife, comprising:

[0030] The knife handle 1 includes a knife rod 11 and a sleeve 12. The knife rod 11 is provided with an extension portion 111. The sleeve 12 is sleeved on the knife rod 11 and the end of the sleeve 12 abuts against the extension portion 111.

[0031] The cutter head 2 has a bottom portion mounted on one end of the cutter bar 11 and is provided with a plurality of cutting blades 21;

[0032] A guide bearing 3 is rotatably mounted on the top of the cutter head 2;

[0033] Among them, a number of plug blocks 112 are provided on the extension part 111, and a number of sockets 121 are provided on the end of the sleeve 12 abutting the extension part 111. The number of plug blocks 112 are correspondingly plugged into the number of sockets 121, and the shank 11 and the sleeve 12 are fixedly connected by setting a fastener 4.

[0034] Furthermore, the fastener 4 is a fixing screw, which passes through the sleeve 12 in the radial direction and is threadedly connected to the arbor 11.

[0035] Furthermore, a countersunk hole 122 is provided on the sleeve 12 , and a fixing screw is installed in the countersunk hole 122 .

[0036] In this technical solution, an integral annular extension 111 is provided on the shank 11. A plurality of inserts 112 are integrally connected to the extension 111. These inserts 112 are arranged in a ring-shaped array on the extension 111. When the sleeve 12 is fixedly connected to the shank 11, the sleeve 12 is first sleeved onto the shank 11. The end of the sleeve 12 abuts the extension 111, and the inserts 112 are correspondingly engaged with the sockets 121, thereby limiting the circumferential rotation of the sleeve 12. Furthermore, the circumferential outer wall of the extension 111 is flush with the circumferential outer wall of the sleeve 12, making the surface of the shank 1 smoother and effectively reducing the risk of damage from bumps and collisions.

[0037] Then, a fastener 4 is set to fix the sleeve 12 and the knife rod 11 together. The fastener 4 is a fixing screw. The fixing screw passes through the sleeve 12 in the radial direction and is threadedly connected to the knife rod 11, limiting the axial offset between the sleeve 12 and the knife rod 11, and further limiting the circumferential rotation between the sleeve 12 and the knife rod 11, so that the sleeve 12 and the knife rod 11 are firmly connected.

[0038] The above structural design achieves a detachable connection between the sleeve 12 and the tool shank 11. When the fillet cutter is used on processing equipment with a large clamping radius of the jacket, the sleeve 12 can be mounted and fixed on the tool shank 11, so that the sleeve 12 and the tool shank 11 together form a tool handle 1 structure for clamping the processing equipment. When the fillet cutter is used on processing equipment with a small clamping radius of the jacket, the sleeve 12 can be removed, and the tool shank 11 can be used alone as the tool handle 1 structure for clamping the processing equipment.

[0039] To sum up, when the fillet cutter is in use, the sleeve 12 can be installed or removed according to the clamping radius of the sleeve, and the shank diameter of the shank 1 can be adjusted, so that the shank 1 can be compatible with different types of sleeves, ensuring that the fillet cutter can be firmly and reliably installed on the processing equipment, effectively improving the scope of application and enhancing practicality.

[0040] Example 2:

[0041] This embodiment provides a fillet knife, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] Furthermore, a countersunk hole 122 is provided on the sleeve 12 , and a fixing screw is installed in the countersunk hole 122 .

[0043] In this technical solution, a countersunk hole 122 is provided on the sleeve 12, and a mounting hole is provided on the knife rod 11. When the sleeve 12 is sleeved on the knife rod 11, the countersunk hole 122 is connected to the mounting hole, and the fixing screw can pass through the countersunk hole 122 and be threadedly connected to the mounting hole. At the same time, the head of the fixing screw is located inside the countersunk hole 122, so that the head of the fixing screw will not be exposed on the sleeve 12, which plays a certain protective role for the head of the fixing screw.

[0044] Example 3:

[0045] This embodiment provides a fillet knife, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0046] Furthermore, it also includes:

[0047] A plurality of elastic pads 5 are correspondingly disposed in each insertion hole 121 and respectively abut against the end of each insertion block 112 .

[0048] In the present technical solution, the elastic pad 5 can be made of rubber. When the plug 112 is plugged into the socket 121, the end of the plug 112 abuts against the elastic pad 5, so that the elastic pad 5 is squeezed. The elastic pad 5 can compensate for the gap between the plug 112 and the socket 121, so that the plug-in fit between the plug 112 and the socket 121 is more stable, and the connection reliability between the extension 111 and the sleeve 12 is enhanced.

[0049] Example 4:

[0050] This embodiment provides a fillet knife, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] Furthermore, the cutter head 2 also includes:

[0052] The chip removal groove 22 is provided between two adjacent cutting blades 21 .

[0053] In this technical solution, the processing equipment controls the rotation of the rounding cutter to round the corners of the material. The chips generated by the cutting blade 21 cutting the material will enter the chip groove 22 along the curved surface of the cutter head 2, and then be discharged through the chip groove 22, effectively reducing the accumulation of chips, maintaining good contact between the rounding cutter and the material, improving cutting stability, and improving cutting effect.

[0054] Example 5:

[0055] This embodiment provides a fillet knife, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0056] Furthermore, the cutter rod 11 and the cutter head 2 are integrally connected.

[0057] Further, the integral connection part of the tool head 2 and the tool bar 11 is provided with an arc-shaped chamfer structure.

[0058] In the technical solution, the tool bar 11 and the tool head 2 are in an integral structure, effectively enhancing the connection stability of the tool bar 11 and the tool head 2, and the arc-shaped chamfer structure is arranged at the integral connection part of the two, which can effectively disperse the stress generated at the connection part, avoid stress concentration caused by sharp edges, thereby reducing the risk of fracture and damage, and helping to prolong the service life.

[0059] The embodiments of the present application are described above in combination with the drawings, and the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims.

Claims

1. A fillet knife, characterized in that: include: A knife handle (1), the knife handle (1) comprising a knife rod (11) and a sleeve (12), the knife rod (11) being provided with an extension portion (111), the sleeve (12) being sleeved on the knife rod (11) and the end of the sleeve (12) being in contact with the extension portion (111); A cutter head (2), the bottom of which is mounted on one end of the cutter rod (11), and a plurality of cutting blades (21) are provided on the cutter head (2); A guide bearing (3) rotatably mounted on the top of the cutter head (2); The extension portion (111) is provided with a plurality of plug blocks (112), the end portion of the sleeve (12) abutting against the extension portion (111) is provided with a plurality of sockets (121), the plurality of plug blocks (112) and the plurality of sockets (121) are correspondingly plugged into and matched with each other, and the shank (11) and the sleeve (12) are fixedly connected by a fastener (4).

2. A fillet knife according to claim 1, characterized in that: The fastener (4) is a fixing screw, which passes through the sleeve (12) in a radial direction and is threadedly connected to the knife rod (11).

3. A fillet knife according to claim 2, characterized in that: The sleeve (12) is provided with a countersunk hole (122), and the fixing screw is installed in the countersunk hole (122).

4. A fillet knife according to claim 1, characterized in that: Also includes: A plurality of elastic pads (5) are correspondingly arranged in each insertion hole (121) and respectively abut against the end of each insertion block (112).

5. The fillet knife according to claim 1, characterized in that: The peripheral outer wall of the extension portion (111) is flush with the peripheral outer wall of the sleeve (12).

6. A fillet knife according to claim 1, characterized in that: The cutter head (2) further comprises: A chip removal groove (22) is provided between two adjacent cutting blades (21).

7. The fillet knife according to claim 1, characterized in that: The cutter rod (11) and the cutter head (2) are integrally connected.

8. A fillet knife according to claim 7, characterized in that: An arc-shaped chamfered structure is provided at the integral connection between the cutter head (2) and the cutter rod (11).

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