Rotary cutting tool bit assembly

Abstract

The utility model relates to a rotary cutting tool bit assembly which comprises a cutter head and a rotary cutting tool bit. The plurality of pushing structures are arranged around the cutter head, and each pushing structure comprises a plurality of pushing structures; the extending direction of the sliding groove faces the center of the cutter head; the sliding block is connected into the sliding groove in a sliding mode, and a cutting piece is connected to the sliding block. The length direction of the screw rod is the same as the extending direction of the sliding groove, the screw rod is in threaded connection with the sliding block, the three-jaw chuck is used for fixing and driving the pipe fitting to rotate, then the screw rod is used for driving the sliding block and the cutting piece to move, cutting is conducted under the condition that the pipe fitting rotates, and therefore the pipe fitting can be cut conveniently and rapidly. And the condition that the blade sliding block is severely rubbed when the cutter presses the push sleeve is avoided.

Description

Technical Field

[0001] This application relates to the technical field of pipe cutting, and in particular to a rotary cutting head assembly. Background Technology

[0002] Pipe cutting is usually accomplished using a rotary cutting head, which involves rotating the cutting head around the outside of the pipe to squeeze and cut. Compared to traditional cutting machines, rotary cutting heads offer higher cutting precision and less blade wear.

[0003] The existing patent application with application number CN202020285815.X describes a process where the drive head seat rotates, and the drive head pressing device drives the cutter pressing sleeve to squeeze the blade slider, causing the roller to rotate around the pipe. At the same time, the roller gradually moves towards the center of the cutter head cover plate to cut the pipe. In this application, the blade slider also rotates during the roller cutting process, and the blade slider will rub violently against the cutter pressing sleeve, which will reduce the service life of the blade slider and the cutter pressing sleeve. Summary of the Invention

[0004] This application provides a rotary cutting head assembly to solve the problem of low service life of the blade slider and the cutting blade pressing push sleeve in the related art.

[0005] In a first aspect, a rotary cutting head assembly is provided, comprising:

[0006] Cutter head;

[0007] Several pushing structures are arranged around the cutter head, and the pushing structures include:

[0008] - Slide groove, the slide groove extends towards the center of the cutter head;

[0009] - Slider, the slider is slidably connected in the groove, and the cutting part is connected to the slider;

[0010] - The length direction of the screw is the same as the extension direction of the slide groove, and the screw is threadedly connected to the slider.

[0011] In some embodiments, the actuating structure further includes a first gear and a double gear;

[0012] One end of the screw is connected to the first gear, which meshes with the double gear.

[0013] In some embodiments, a toothed ring is also included;

[0014] The gear ring is rotatably connected to the cutter head, and the gear ring meshes with the double gear.

[0015] In some embodiments, a motor is also included;

[0016] The motor output end is equipped with a bevel gear, and the gear ring is equipped with a conical ring, which meshes with the bevel gear.

[0017] In some embodiments, the cutting element includes a cutter, and a slider extends outside the groove, with the cutter connected to one of the sliders.

[0018] In some embodiments, a three-jaw chuck is also included, which is located on the same horizontal plane as the cutter head.

[0019] This application provides a rotary cutting head assembly. In this application, the tube is fixed and rotated by a three-jaw chuck, and then the slider and cutting component are moved by a screw. Cutting is performed while the tube rotates on its own. Therefore, the situation where the blade slider and the cutting blade press against the push sleeve are subjected to severe friction is avoided. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure provided for an embodiment of this application;

[0022] Figure 2 A schematic diagram of the cutter head structure is provided for the embodiments of this application;

[0023] Figure 3 A cross-sectional view of the cutter head is provided for the embodiments of this application.

[0024] In the diagram: 1. Cutter head; 2. Pushing structure; 21. Slide groove; 22. Slider; 23. Screw; 24. First gear; 25. Double gear; 3. Gear ring; 4. Motor; 5. Conical ring; 6. Cutter; 7. Three-jaw chuck. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] This application provides a rotary cutting head assembly that can solve the problem of low service life of the blade slider and the cutting blade pressing push sleeve in related technologies.

[0027] Please see Figures 1 to 3 A rotary cutting head assembly, comprising:

[0028] The cutter head 1 has a hole in the middle for the pipe fitting to pass through, and also includes a three-jaw chuck 6, which is located on the same horizontal plane as the cutter head 1, so that the pipe fitting can be inserted into the cutter head 1 after being fixed by the three-jaw chuck.

[0029] Several pushing structures 2, specifically three, are arranged around the cutter head 1. Each pushing structure 2 includes a groove 21, a slider 22, and a screw 24. The groove 21 extends towards the center of the cutter head 1. The slider 22 is slidably connected to the groove 21, but cannot rotate within the groove 21. A cutting element 23 is connected to the slider 22. The length direction of the screw 24 is the same as the extension direction of the groove 21. The screw 24 is threadedly connected to the slider 22. The rotation of the screw 24 drives the slider 22 to move up and down within the groove 21.

[0030] The pushing structure 2 also includes a first gear 25 and a double gear 26. One end of the screw 24 is connected to the first gear 25, which meshes with the double gear 26. The two sides of the double gear 26 are a bevel gear and a spur gear, respectively. The bevel gear of the double gear 26 is located inside the cutter head 1, and the spur gear of the double gear 26 is located outside the cutter head 1. The first gear 25 is a bevel gear. The first gear 25 meshes with the double gear 26. The rotation of the double gear 26 drives the first gear 25, which in turn causes the screw 24 to rotate, driving the slider 22 to rise and fall.

[0031] It also includes toothed ring 3;

[0032] The gear ring 3 is rotatably connected to the cutter head 1, and the gear ring 3 meshes with the double gear 26;

[0033] The inner side of the gear ring 3 meshes with the spur gear of the double gear 26, such as... Figure 3 As shown, the gear ring 3 meshes with the spur gears of the three triple gears 26 simultaneously, meaning that the gear ring 3 can simultaneously drive the three triple gears 26 to rotate, and the gear ring 3 can simultaneously drive the three sliders 22 to move closer to or further away from the center of the cutter head 1.

[0034] It also includes a motor 4, the output end of which is equipped with a bevel gear, and a bevel ring 5 is provided on the gear ring 3. The bevel ring 5 meshes with the bevel gear, so that the motor 4 drives the three sliders 22 to simultaneously move closer to or further away from the center of the cutter head 1.

[0035] The cutting component 23 includes a cutter 231, a slider 22 extending outside the groove 21, the cutter 231 being connected to one of the sliders 22, and rollers being mounted on the other two sliders 22.

[0036] The working principle of this application is as follows:

[0037] When using this application, the pipe is first passed through the hole in the middle of the cutter head 1, and then the pipe is fixed by the three-jaw chuck 6. Then the motor 4 is started, and the cutting element 231 and the two rollers move towards the center of the cutter head 1 at the same time to clamp the pipe in the middle. It does not need to be clamped tightly. Then the three-jaw chuck 6 rotates to drive the pipe to rotate. At the same time, the motor drives the cutting element 231 and the rollers to move at the same time, and the cutting element 231 cuts the pipe.

[0038] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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 communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0039] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A rotary cutting head assembly, characterized in that, include: Cutterhead (1); A plurality of pushing structures (2), wherein the plurality of pushing structures (2) are arranged around the cutter head (1), the pushing structure (2) comprising; - Slide groove (21), the extension direction of the slide groove (21) is toward the center of the cutter head (1); - Slider (22), the slider (22) is slidably connected in the groove (21), and a cutting part (23) is connected on the slider (22); - Screw (24), the length direction of the screw (24) is the same as the extension direction of the groove (21), and the screw (24) is threadedly connected to the slider (22).

2. The rotary cutting head assembly as described in claim 1, characterized in that: The pushing structure (2) also includes a first gear (25) and a double gear (26); One end of the screw (24) is connected to the first gear (25), and the first gear (25) meshes with the double gear (26).

3. The rotary cutting head assembly as described in claim 2, characterized in that: It also includes a toothed ring (3); The gear ring (3) is rotatably connected to the cutter head (1), and the gear ring (3) meshes with the double gear (26).

4. The rotary cutting head assembly as described in claim 3, characterized in that: It also includes the motor (4); The output end of the motor (4) is provided with a bevel gear, and the gear ring (3) is provided with a bevel ring (5), which meshes with the bevel gear.

5. The rotary cutting head assembly as described in claim 1, characterized in that: The cutting element (23) includes a cutter (231), and the slider (22) extends outside the groove (21), with the cutter (231) connected to one of the sliders (22).

6. The rotary cutting head assembly as described in claim 1, characterized in that: It also includes a three-jaw chuck (6), which is located on the same horizontal plane as the cutter head (1).

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