An assembly apparatus for a button bit

Abstract

This utility model discloses an assembly device for ball-tooth drill bits, relating to the field of ball-tooth drill bit manufacturing technology. It includes: a mounting frame assembly for mounting a drill bit body support mechanism and a high-frequency induction heating mechanism; and a drill bit body support mechanism comprising a rotating disk nested within a rotating groove via bearings, with multiple positioning sleeves evenly fixed and penetrated at the top of the rotating disk for supporting and positioning the drill bit body. A support platform fixed to the top of a base plate is positioned directly below the rotating disk, and an arc-shaped guide plate is fixedly mounted on the rear side of the top of the support platform. This utility model allows for the sequential heating of multiple drill bit bodies, causing the top of the drill bit body to expand based on the principle of thermal expansion and contraction. This reduces resistance during subsequent ball tooth press-fitting, lowers press-fitting noise, reduces wear on the mounting groove, and ensures the fixing strength of the ball teeth.

Description

Technical Field

[0001] This utility model relates to the field of ball tooth drill bit manufacturing technology, and in particular to an assembly device for ball tooth drill bits. Background Technology

[0002] A ball tooth drill bit mainly consists of a drill body and ball teeth. The drill body is the supporting part and is usually made of high-strength materials such as cemented carbide, which can withstand high-intensity impact and wear. The ball teeth are many cemented carbide ellipsoids distributed on the drill body. Their hardness is higher than that of the rock or ore to be drilled, and they are the key components for breaking rocks and ores.

[0003] In existing technologies, when assembling ball tooth drill bits, the ball teeth are mostly pressed directly into the drill bit body using a pressing device, which is a cold installation. During the installation process, the ball teeth and the mounting groove on the drill bit body will experience relatively severe friction, resulting in excessive noise and wear on the mounting groove, which in turn affects the fixing strength of the ball teeth.

[0004] Therefore, it is necessary to invent an assembly device for ball-tooth drill bits to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an assembly device for ball tooth drill bits, which can heat multiple drill bit bodies sequentially, causing the top of the drill bit body to expand based on the principle of thermal expansion and contraction. This reduces the resistance during subsequent ball tooth press-fitting, lowers press-fitting noise, reduces wear on the mounting groove, and ensures the fixing strength of the ball teeth. This addresses the problem mentioned in the background art that, in the prior art, ball tooth drill bit assembly is mostly achieved by directly pressing the ball teeth into the drill bit body using a press-fitting device, i.e., cold installation. During the installation process, the ball teeth and the mounting groove on the drill bit body will experience relatively severe friction, resulting in excessive noise and wear on the mounting groove, thus affecting the fixing strength of the ball teeth.

[0006] According to one aspect of this disclosure, the following technical solution is provided: an assembly device for ball-tooth drill bits, comprising:

[0007] Mounting bracket assembly, which is used to mount the drill bit body support mechanism and the high-frequency induction heating mechanism;

[0008] A drill bit body support mechanism includes a rotating disk nested within a rotating groove via bearings. Multiple positioning sleeves for supporting and positioning the drill bit body are uniformly fixed and penetrated through the top of the rotating disk. A support platform fixed to the top of a base plate is positioned directly below the rotating disk. An arc-shaped guide plate is fixed to the rear side of the top of the support platform, and guide ramps are fixed to both sides of the arc-shaped guide plate.

[0009] A high-frequency induction heating mechanism is used to heat the raised drill bit body.

[0010] According to at least one embodiment of the ball tooth drill bit assembly equipment of the present disclosure, the mounting frame assembly includes a workbench, with legs fixedly disposed at the four corners of the bottom of the workbench, and a base plate fixedly disposed between the four legs.

[0011] According to at least one embodiment of the ball tooth drill bit assembly equipment of the present disclosure, a fixing frame is fixedly provided on the front side of the top of the worktable, a vertically arranged first pressing device is fixedly provided on the top inner side of the fixing frame, and an inclined second pressing device is fixedly provided on any side wall of the inner frame.

[0012] According to at least one embodiment of the ball tooth drill bit assembly equipment of the present disclosure, a rotating groove is provided at the center of the top of the worktable, and a clearance passage communicating with the rotating groove is provided at the center of the bottom of the worktable.

[0013] According to at least one embodiment of the ball tooth drill bit assembly equipment of the present disclosure, the high-frequency induction heating mechanism includes a back plate fixedly disposed on the rear side of the top of the worktable, and a high-frequency induction heating coil is fixedly disposed on the top front side of the back plate.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This invention features a drill bit body support mechanism, allowing workers to stand in front of the equipment and vertically insert the drill bit body into the inner side of an adjacent rotating disk for positioning. The bottom end of the drill bit body is then supported against the top of the support platform. Rotating the rotating disk, via the positioning sleeve, moves the drill bit body closer to the high-frequency induction heating coil. During this process, an arc-shaped guide plate supports the drill bit body, allowing it to enter the high-frequency induction heating coil and be heated. Compared to existing technologies, this invention can heat multiple drill bit bodies sequentially, causing the top of the drill bit body to expand based on the principle of thermal expansion and contraction. This reduces resistance during subsequent ball tooth pressing, lowers pressing noise, reduces wear on the mounting groove, and ensures the fixing strength of the ball teeth. Attached Figure Description

[0016] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0017] Figure 1 This is a schematic diagram of the overall structure of an assembly apparatus for a ball tooth drill bit according to one embodiment of the present disclosure.

[0018] Figure 2This is a schematic diagram of the mounting bracket assembly structure of a ball tooth drill bit assembly device according to one embodiment of the present disclosure.

[0019] Figure 3 This is a schematic diagram of the drill body support mechanism and high-frequency induction heating mechanism of an assembly device for ball tooth drill bits according to one embodiment of the present disclosure.

[0020] The specific labels in the attached figures are as follows:

[0021] 1. Mounting frame assembly; 11. Workbench; 12. Support legs; 13. Base plate; 14. Fixing frame; 15. Rotating groove; 16. Clearance passage;

[0022] 2. Drill bit body support mechanism; 21. Rotary disk; 22. Positioning sleeve; 23. Support platform; 24. Arc-shaped guide plate;

[0023] 3. High-frequency induction heating mechanism; 31. Back plate; 32. High-frequency induction heating coil. Detailed Implementation

[0024] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0025] Figure 1 This is a schematic diagram of the overall structure of an assembly apparatus for a ball tooth drill bit according to one embodiment of the present disclosure.

[0026] Figure 2 This is a schematic diagram of the mounting bracket assembly 1 and the drill body support mechanism 2 of an assembly device for a ball tooth drill bit according to one embodiment of the present disclosure.

[0027] Figure 3 This is a schematic diagram of the high-frequency induction heating mechanism 3 of an assembly apparatus for ball-tooth drill bits according to one embodiment of the present disclosure.

[0028] like Figures 1-3As shown, the assembly equipment for the ball tooth drill bit disclosed herein may include components such as: mounting bracket assembly 1, drill bit body bearing mechanism 2, and high-frequency induction heating mechanism 3.

[0029] like Figure 2 As shown in this disclosure, the mounting frame assembly 1 includes a workbench 11, with four legs 12 fixedly installed at the bottom corners of the workbench 11, a base plate 13 fixedly installed between the four legs 12, a fixed frame 14 fixedly installed on the front top of the workbench 11, a vertically installed first pressing device (not shown) fixedly installed on the top inner side of the fixed frame 14, and an inclined second pressing device (not shown) fixedly installed on any side wall of the inner side, a rotating groove 15 is provided at the center of the top of the workbench 11, and an avoidance channel 16 connected to the rotating groove 15 is provided at the center of the bottom of the workbench 11.

[0030] Therefore, when the heated drill bit body returns to its initial position, a tool is used to place the ball teeth into the mounting grooves on the top and outer ends of the drill bit body. Then, the first and second pressing devices are used to press the ball teeth located on the top and outer ends of the drill bit body, respectively, so that they are fixed in the mounting grooves. Then, a tool is used to remove the drill bit body from the inside of the positioning sleeve 22. After it cools down, a ball tooth drill bit is formed.

[0031] like Figure 3 As shown, in a preferred embodiment, the drill bit body supporting mechanism 2 includes a rotating disk 21 that is rotatably nested inside the rotating groove 15 via a bearing. A plurality of positioning sleeves 22 for supporting and positioning the drill bit body are uniformly fixed through the top of the rotating disk 21. A support platform 23 fixed to the top of the base plate 13 is provided directly below the rotating disk 21. An arc-shaped guide plate 24 is fixedly provided on the rear side of the top of the support platform 23. Guide slopes are fixedly provided on both sides of the arc-shaped guide plate 24.

[0032] Therefore, the guide slope allows the drill bit body to be lifted when it comes into contact with it, so that the drill bit body gradually enters the inner side of the high-frequency induction heating coil 32 and is heated.

[0033] like Figure 3 As shown in this disclosure, the high-frequency induction heating mechanism 3 includes a back plate 31 fixedly disposed on the rear side of the top of the workbench 11, and a high-frequency induction heating coil 32 fixedly disposed on the top front of the back plate 31.

[0034] By setting up the aforementioned mounting bracket assembly 1, drill bit body bearing mechanism 2, and high-frequency induction heating mechanism 3, it is possible for the operator to stand in front of the equipment and then insert the drill bit body vertically into the inner side of the adjacent rotating disk 21 for positioning. At this time, the bottom end of the drill bit body is supported against the top of the support platform 23. Then, the rotating disk 21 is rotated, which in turn causes the rotating disk 21 to move the drill bit body closer to the high-frequency induction heating coil 32 through the positioning sleeve 22. During this process, the arc-shaped guide plate 24 supports the drill bit body, allowing the drill bit body to enter the inner side of the high-frequency induction heating coil 32 and be heated. Subsequently, as the rotating disk 21 continues to rotate, the drill bit body returns to the initial position. At this time, the top of the drill bit body expands due to heating. Compared with the existing technology, multiple drill bits can be heated sequentially, so that the top of the drill bit body expands based on the principle of thermal expansion and contraction, thereby reducing the resistance during subsequent ball tooth pressing, reducing pressing noise, reducing wear on the mounting groove, and ensuring the fixing strength of the ball teeth.

[0035] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0036] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. An assembly device for ball-tooth drill bits, characterized in that, include: Mounting bracket assembly, which is used to mount the drill bit body support mechanism and the high-frequency induction heating mechanism; A drill bit body support mechanism includes a rotating disk nested within a rotating groove via bearings. Multiple positioning sleeves for supporting and positioning the drill bit body are uniformly fixed and penetrated through the top of the rotating disk. A support platform fixed to the top of a base plate is positioned directly below the rotating disk. An arc-shaped guide plate is fixed to the rear side of the top of the support platform, and guide ramps are fixed to both sides of the arc-shaped guide plate. A high-frequency induction heating mechanism is used to heat the raised drill bit body.

2. The assembly equipment for ball-tooth drill bits according to claim 1, characterized in that: The mounting frame assembly includes a workbench, with legs fixedly installed at the four corners of the bottom of the workbench, and a base plate fixedly installed between the four legs.

3. The assembly equipment for ball-tooth drill bits according to claim 2, characterized in that: A fixed frame is fixedly installed on the front side of the top of the workbench. A first pressing device is fixedly installed vertically on the top of the inner side of the fixed frame, and a second pressing device is fixedly installed at an angle on any side wall inside the frame.

4. The assembly equipment for ball-tooth drill bits according to claim 3, characterized in that: A rotating groove is provided at the center of the top of the workbench, and a clearance passage connected to the rotating groove is provided at the center of the bottom of the workbench.

5. The assembly equipment for ball-tooth drill bits according to claim 4, characterized in that: The high-frequency induction heating mechanism includes a back plate fixedly installed on the rear side of the top of the workbench, and a high-frequency induction heating coil is fixedly installed on the top front of the back plate.

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