A beveling cutter with quick replaceable cutter head

Abstract

The utility model discloses a kind of oblique cutting knives of quick replacement tool bit, it is related to tool technical field.The oblique cutting knife includes handle assembly and tool bit assembly, and handle assembly and tool bit assembly are detachably connected by taper surface cooperation structure.Handle assembly includes handle, retainer ring, screw limiting block, pull rod, clamping ear and handle, and it is locked by rotating handle to drive pull rod axial movement.Tool bit assembly includes presser block, blade, tool bit, bearing, presser foot support and pin, and blade is fixed on tool bit with fixed inclination angle by presser block, and bearing is installed on presser foot support and forms presser foot device.The utility model realizes the quick replacement and automatic centering of tool bit and handle by taper surface cooperation, prevents material displacement by bearing presser foot, and cutting depth can be controlled by fine adjustment, with the advantages of convenient tool changing, high centering accuracy, good machining quality and the like.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a bevel cutting tool with a quick-change cutting head. Background Technology

[0002] In the field of material cutting and processing, especially when performing V-groove cutting, it is often necessary to change the cutting head with different angles according to different processing requirements. Traditional cutting tools involve a cumbersome and time-consuming process of changing the cutting head, which affects work efficiency. At the same time, during the cutting process, the material is prone to flipping up, and the cutting depth is not easy to control precisely, resulting in poor cutting quality. In addition, the alignment accuracy between the tool holder and the cutting head also affects the cutting effect, and traditional connection methods are difficult to guarantee good alignment. Utility Model Content

[0003] The purpose of this invention is to provide a beveling cutter with a quick-change blade head, which can quickly change blades, has a presser foot for fine adjustment and automatic centering function, so as to solve the problems of inconvenient blade changing, easy material displacement and low centering accuracy in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a bevel cutting blade with a quick-change blade head, comprising a handle assembly and a blade head assembly, wherein the handle assembly and the blade head assembly are detachably connected by a conical surface mating structure.

[0005] As a further improvement of this utility model, the tool holder assembly includes a handle, a retaining ring, a screw limiting block, a pull rod, a retainer, and a tool holder. The unthreaded end of the pull rod is sequentially fitted with a screw limiting block and a retaining ring, and the retaining ring and the screw limiting block form an axial limiting structure. The retaining ring is fixed to the pull rod by a second set screw. The handle is installed on the top of the pull rod and fixed by a first set screw. The two retainers are respectively hinged in the retainer grooves on both sides of the tool holder. The pull rod is disposed in the inner cavity of the tool holder and is positioned and fixed by a pin and a countersunk screw.

[0006] As a further improvement of this utility model, the cutter head assembly includes a pressure block, a blade, a cutter head, a bearing, a pressure foot bracket, and a pin. The blade is placed in the blade groove of the cutter head. After calibrating the center of the blade tip, the pressure block is locked to the cutter head by a countersunk screw. The pressure foot bracket is equipped with a bearing and is installed on the cutter head by a pin and a cup-head screw.

[0007] As a further improvement of this utility model, the blade of the cutting head is installed at a fixed tilt angle, and cutting heads with different fixed tilt angles can be quickly replaced as needed.

[0008] As a further improvement of this utility model, the fixed tilt angle is between 15 and 45 degrees, and the cutter head at each angle is provided with a corresponding color mark for distinction.

[0009] As a further improvement of this utility model, the bearing is a double-row angular contact bearing, which can withstand radial and axial loads.

[0010] As a further improvement of this utility model, the inner tapered hole of the tool holder matches the taper of the tool head shank, and the tapered surface is completely fitted by axial locking, and the centering is achieved by utilizing the self-centering characteristic of the tapered surface.

[0011] As a further improvement of this utility model, the blade is provided with a quick positioning groove, which cooperates with the positioning boss of the blade head to achieve pre-positioning during installation.

[0012] As a further improvement of this utility model, the outer periphery of the anti-reverse ring is provided with a protrusion or groove, which cooperates with the corresponding groove or protrusion on the inner wall of the tool holder, forming a mechanical interlock to prevent accidental contact when the pull rod is in the locked position.

[0013] As a further improvement of this utility model, the presser foot bracket is provided with a scale observation window. Used to display the bearing pressure adjustment amount.

[0014] The beneficial effects of this utility model are: 1. Different fixed tilt angle cutter heads can be quickly replaced as needed to meet different cutting requirements and improve work efficiency.

[0015] 2. The bearing pressure foot device at the cutter head can be finely adjusted up and down to control the cutting depth, while continuously pressing down on the material to prevent it from flipping over and ensure cutting quality.

[0016] 3. The inner tapered hole of the tool holder matches the taper of the tool head shank. The tapered surfaces are fully fitted by axial locking. The "self-centering characteristic" of the tapered surface is used to achieve automatic centering and ensure cutting accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the tool holder assembly structure of this utility model; Figure 2 This is a schematic diagram of the cutter head assembly structure of this utility model; Figure 3 This is a schematic diagram of the overall assembly structure of this utility model; In the diagram: 11. Handle; 12. Anti-reverse ring; 13. Screw limit block; 14. Pull rod; 15. Clamp; 16. Tool holder; 17. First set screw; 18. Countersunk screw; 19. Second set screw; 21. Pressure block; 22. Blade; 23. Tool head; 24. Bearing; 25. Pressure foot bracket; 26. Pin; 27. Semi-countersunk screw; 28. Cup head screw. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0021] Please see Figures 1 to 3 This utility model provides a quick-change beveling cutter, including a handle assembly and a cutter head assembly. The handle assembly and the cutter head assembly are detachably connected via a tapered surface fit structure. The cutter head assembly is installed at the lower end of the handle assembly via a tapered fit and threaded connection, achieving automatic centering and quick replacement.

[0022] like Figure 1 As shown, the tool holder assembly includes a handle 11, a retaining ring 12, a screw limiting block 13, a pull rod 14, a retainer 15, and a tool holder 16. The unthreaded end of the pull rod 14 is sequentially fitted with the screw limiting block 13 and the retaining ring 12. The retaining ring 12 and the screw limiting block 13 form an axial limiting structure to limit the axial position of the pull rod. The retaining ring 12 is fixed to the pull rod 14 by a second set screw 19. The handle 11 is installed on the top of the pull rod 14 and fixed by a first set screw 17 for rotational locking. Two retainers 15 are respectively hinged in the slots on both sides of the tool holder 16 for overall fixation. The pull rod 14 is set in the inner cavity of the tool holder 16 and is positioned and fixed by a pin 26 and a countersunk screw 18.

[0023] like Figure 2As shown, the cutter head assembly includes a pressure block 21, a blade 22, a cutter head 23, a bearing 24, a pressure foot bracket 25, and a pin 26. The blade 22 is placed in the blade groove of the cutter head 23. After aligning the blade tip center, the pressure block 21 is locked to the cutter head 23 by a countersunk screw 27. The bearing 24 is mounted on the pressure foot bracket 25, and the pressure foot bracket 25 is mounted on the cutter head 23 by the pin 26 and a cup-head screw 28. The blade 22 is fixed to the blade groove at the bottom of the cutter head 23 by the pressure block 21. Two parallel bearings are mounted on the pressure foot bracket 25 by the pin 26, forming a bearing pressure foot device. The bearing pressure foot device continuously presses the material surface during cutting to prevent the material from lifting or shifting. The pressure foot bracket 25 is mounted on the cutter head 23 by the cup-head screw 28 and can be finely adjusted up and down to control the cutting depth.

[0024] like Figure 2 As shown, the blade of the cutter head 23 is installed at a fixed tilt angle, and cutter heads 23 with different fixed tilt angles can be quickly replaced as needed. The fixed tilt angle is between 15° and 45°, and each angle of the cutter head is distinguished by a corresponding color mark.

[0025] Bearing 24 is a double-row angular contact bearing that can withstand radial and axial loads.

[0026] The lower end of the tool holder 16 is provided with an inner conical hole, and the upper end of the tool head 23 is provided with a matching outer conical surface. Axial locking is achieved by rotating the lever with the handle, and the self-centering characteristic of the conical surface is used to ensure centering accuracy.

[0027] The blade 22 is equipped with a quick positioning groove, which cooperates with the positioning boss of the blade head 23 to achieve pre-positioning during installation.

[0028] The outer periphery of the anti-reverse ring 12 is provided with protrusions or grooves, which cooperate with the corresponding grooves or protrusions on the inner wall of the tool holder 16. When the pull rod 14 is in the locked position, a mechanical interlock is formed to prevent accidental contact.

[0029] The presser foot bracket 25 is equipped with a graduated observation window to display the presser depth adjustment of the bearing 24.

[0030] Assembly process of the tool holder assembly: The handle 11 is fixed to the upper end of the pull rod 14 with a set screw. The two clasps 15 are respectively installed in the slots on both sides of the tool holder. The pin is pressed into the mounting hole at the lower end of the tool holder 16. The anti-reverse ring 12 is inserted through the unthreaded end of the pull rod 14 and installed on the pull rod with a second set screw 19. Then, the screw limit block 13 is inserted through the pull rod 14. The handle is then installed on the unthreaded end of the pull rod 14 and fixed with a first set screw 17. The assembled assembly is placed into the tool holder 16 and fixed with a countersunk screw 18.

[0031] Assembly process of the cutter head assembly: The blade 22 is placed in the blade groove of the cutter head 23, the center of the blade tip is aligned, the pressure block 21 is locked to the cutter head 23 with the countersunk screw 27, the two bearings 24 are placed side by side into the slot of the pressure foot bracket 25, the pin 26 is pressed in, and the cutter head 23 is installed with the cup head screw 28.

[0032] Overall assembly: Insert the upper end of the cutter head assembly into the lower end of the cutter handle assembly, align the hole and rotate the handle 11 to lock it in place. Assembly is complete.

[0033] During operation, the blade moves with the external equipment, using the blade 22 on the cutter head 23 to perform V-groove cutting on the material. The bearing pressure foot device presses down on the material during the cutting process, and the cutting depth can be controlled by fine-tuning up and down. When it is necessary to change the cutter head to a different angle, rotate the handle 11 to loosen it, remove the original cutter head assembly, replace it with the cutter head assembly of the required angle, and then rotate the handle 11 to lock it.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bevel cutting blade with a quick-change blade head, characterized in that, It includes a tool holder assembly and a tool head assembly, wherein the tool holder assembly and the tool head assembly are detachably connected by a tapered surface mating structure.

2. The quick-change blade for oblique cutting according to claim 1, characterized in that: The tool holder assembly includes a handle (11), a retaining ring (12), a screw limiting block (13), a pull rod (14), a retainer (15), and a tool holder (16). The unthreaded end of the pull rod (14) is sequentially fitted with a screw limiting block (13) and a retaining ring (12). The retaining ring (12) and the screw limiting block (13) form an axial limiting structure. The retaining ring (12) is fixed to the pull rod (14) by a second set screw (19). The handle (11) is installed on the top of the pull rod (14) and fixed by a first set screw (17). The two retainers (15) are respectively hinged in the slots on both sides of the tool holder (16). The pull rod (14) is set in the inner cavity of the tool holder (16) and is positioned and fixed by a pin (26) and a countersunk screw (18).

3. The quick-change blade for beveling according to claim 1, characterized in that: The cutter head assembly includes a pressure block (21), a blade (22), a cutter head (23), a bearing (24), a pressure foot bracket (25), and a pin (26). The blade (22) is placed in the blade groove of the cutter head (23). After calibrating the center of the blade tip, the pressure block (21) and the cutter head (23) are locked together by a countersunk screw (27). The bearing (24) is installed on the pressure foot bracket (25), and the pressure foot bracket (25) is installed on the cutter head (23) by the pin (26) and the cup head screw (28).

4. The quick-change blade for oblique cutting according to claim 3, characterized in that: The blade of the cutter head (23) is installed at a fixed tilt angle, and cutter heads (23) with different fixed tilt angles can be quickly replaced as needed.

5. The quick-change blade for oblique cutting according to claim 4, characterized in that: The fixed tilt angle is between 15° and 45°, and the cutter head at each angle is marked with a corresponding color.

6. The quick-change blade for oblique cutting according to claim 3, characterized in that: The bearing (24) is a double-row angular contact bearing that can withstand radial and axial loads.

7. The quick-change blade for beveling according to claim 1, characterized in that: The inner tapered hole of the tool holder (16) matches the taper of the tool head (23) shank. The tapered surfaces are fully fitted by axial locking, and the centering is achieved by utilizing the "self-centering characteristic" of the tapered surfaces.

8. The quick-change blade for beveling according to claim 3, characterized in that: The blade (22) is provided with a quick positioning groove, which cooperates with the positioning boss of the blade head (23) to achieve pre-positioning during installation.

9. The quick-change blade for beveling according to claim 2, characterized in that: The outer periphery of the anti-reverse ring (12) is provided with protrusions or grooves, which cooperate with the corresponding grooves or protrusions on the inner wall of the knife handle (16). When the pull rod (14) is in the locked position, a mechanical interlock is formed to prevent accidental contact.

10. The quick-change blade for beveling according to claim 3, characterized in that: The presser foot bracket (25) is provided with a scale observation window for displaying the press depth adjustment of the bearing (24).

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