A metal electroplated grinding wheel rod for drilling

Abstract

The present invention discloses a metal electroplated grinding wheel rod for drilling, comprising a drill rod and a drill bit, wherein the middle portion of the drill rod is a rotating rod, the bottom end of the drill rod is a connecting rod, a plurality of positioning strips are arranged on the surface of the connecting rod, a plurality of positioning grooves are arranged inside the drill bit, the drill bit is sleeved on the bottom end of the connecting rod, and the bottom end of the drill bit is fixedly connected to the bottom end of the connecting rod by a fixing bolt. The present invention enables the drill rod and the drill bit to be disassembled by the positioning strips and the positioning grooves, and the disassembly is convenient. The drill bit does not need to be replaced as a whole after being damaged, which saves costs and has good economy. The present invention can provide cooling for the drill bit, wherein cooling water flows from the liquid inlet chamber to the water inlet trough, and then the cooling water flows from the water return trough to the water return chamber. The flowing cooling water takes away the heat generated by friction when the drill bit is in use, thereby increasing the service life of the drill bit.

Description

Technical Field

[0001] The invention relates to the technical field of grinding wheel rods, in particular to a metal electroplated grinding wheel rod for drilling. Background Art

[0002] Grinding wheel rods are a commonly used tool in the field of non-metallic shape processing. When installed on CNC machine tools, they can be used to process non-metallic materials such as glass, ceramics, and gemstones. With the growing prosperity of the glass processing industry, both the shape processing of glass and the production and molding of glass hole tubes can be completed by selecting grinding wheel rods of different diameters. Undoubtedly, grinding wheel rods have become an indispensable role in the glass processing industry. When processing thicker glass, traditional grinding wheel rods often encounter problems such as insufficient cooling and inconvenient chip removal. These problems will lead to poor performance of the grinding wheel rod, short service life, and frequent replacement of the grinding wheel rod, which has a very adverse impact on the economic benefits of related companies.

[0003] China invention patent authorization announcement number: CN206536366U; authorization announcement date: 2017.10.03 discloses a grinding wheel bar, which is convenient for chip removal, can be fully cooled, and has a long service life. However, the cooling effect of the grinding wheel bar is limited, and when the drill bit is damaged, it needs to be replaced as a whole, causing unnecessary waste and failing to meet the use requirements.

[0004] Therefore, how to provide a metal electroplated grinding wheel rod for drilling to solve the problems existing in the prior art is of great significance to its application. Summary of the invention

[0005] In view of this, the purpose of the present application is to provide a metal electroplated grinding wheel rod for drilling to solve the problem.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A metal electroplated grinding wheel rod for drilling, comprising a drill rod and a drill bit, wherein the middle portion of the drill rod is a rotating rod, the bottom end of the drill rod is a connecting rod, a plurality of positioning strips are arranged on the surface of the connecting rod, a plurality of positioning grooves are arranged inside the drill bit, the drill bit is sleeved on the bottom end of the connecting rod, and the bottom end of the drill bit is fixedly connected to the bottom end of the connecting rod by a fixing bolt.

[0008] Preferably, a cooling shell is provided on the outer surface of the rotating rod, and a water return cavity and a water inlet cavity are provided inside the cooling shell.

[0009] Preferably, a water return groove is provided inside the connecting rod, a water inlet groove is provided inside the positioning strip, and the bottom ends of the water inlet groove and the water return groove are connected.

[0010] Preferably, the top end of the water inlet groove extends to the interior of the drill rod and is connected to the water inlet chamber, and the top end of the water return groove extends to the interior of the drill rod and is connected to the water return chamber.

[0011] Preferably, a chip removal groove is provided on the outer surface of the drill bit, and the bottom end of the drill bit is conical.

[0012] Preferably, the cooling shell and the rotating rod are rotatably connected via a sealed bearing.

[0013] Preferably, an isolation groove is provided at the bottom end of the drill bit.

[0014] Preferably, the cross section of the positioning strip is provided with an arc shape, and the shape of the positioning groove matches the positioning strip.

[0015] Preferably, the water return chamber is connected to a water outlet pipe, and the water inlet chamber is connected to a water inlet pipe.

[0016] Preferably, the water return chamber and the water inlet chamber are separated by a sealing bearing.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention enables the drill rod and the drill bit to be disassembled by means of the positioning strip and the positioning groove, which is convenient for disassembly. When the drill bit is damaged, it does not need to be replaced as a whole, thus saving costs and having good economy.

[0019] 2. The present invention can provide cooling for the drill bit. The cooling water flows through the liquid inlet cavity to the water inlet groove, and then flows through the return groove to the return water cavity. The flowing cooling water takes away the heat generated by friction when the drill bit is used, thereby increasing the service life of the drill bit.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0021] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the connecting rod in the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the cooling shell in the present invention;

[0026] Figure 4 It is a cross-sectional view of the connecting rod in the present invention.

[0027] In the figure: 1. drill rod; 2. return water chamber; 3. water inlet chamber; 4. water inlet groove; 5. return water groove; 6. connecting rod; 7. positioning strip; 8. drill bit; 9. chip groove; 10. water inlet pipe; 11. water outlet pipe; 12. rotating rod; 13. fixing bolt; 14. positioning groove; 15. isolation groove. DETAILED DESCRIPTION

[0028] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0029] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0030] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0031] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0032] See also Figure 1-4 The present invention provides a technical solution of a metal electroplated grinding wheel rod for drilling: it includes a drill rod 1 and a drill bit 8, the middle part of the drill rod 1 is a rotating rod 12, the bottom end of the drill rod 1 is a connecting rod 6, a plurality of positioning strips 7 are provided on the surface of the connecting rod 6, a plurality of positioning grooves 14 are provided inside the drill bit 8, the drill bit 8 is sleeved on the bottom end of the connecting rod 6, the bottom end of the drill bit 8 is fixedly connected to the bottom end of the connecting rod 6 by a fixing bolt 13, and the plurality of positioning strips 7 can disperse the rotational force generated when the drill bit 8 rotates.

[0033] The outer surface of the rotating rod 12 is covered with a cooling shell, and a water return chamber 2 and a water inlet chamber 3 are arranged inside the cooling shell.

[0034] A water return groove 5 is provided inside the connecting rod 6 , and a water inlet groove 4 is provided inside the positioning bar 7 . The bottom ends of the water inlet groove 4 and the water return groove 5 are connected.

[0035] The top of the water inlet groove 4 extends to the interior of the drill rod 1 and is connected to the water inlet chamber 3, the top of the return water groove 5 extends to the interior of the drill rod 1 and is connected to the return water chamber 2, the outer surface of the drill bit 8 is provided with a chip removal groove 9, the bottom end of the drill bit 8 is conical, the cooling shell and the rotating rod 12 are rotatably connected through a sealed bearing 101 and a sealed bearing 2 102, an isolation groove 15 is provided at the bottom end of the drill bit 8, the cross-section of the positioning strip 7 is provided with an arc shape, the shape of the positioning groove 14 matches the positioning strip 7, the return water chamber 2 is connected with a water outlet pipe 11, the water inlet chamber 3 is connected with a water inlet pipe 10, the return water chamber 2 and the water inlet chamber 3 are separated by a sealed bearing 3 103, the cooling water is injected into the water inlet chamber 3 through the water inlet pipe 10, and then the cooling water enters through the top of the water inlet groove 4, and then the cooling water is transported to the return water chamber 2 through the return water groove 5, and output through the water outlet pipe 11, completing the circulation of the cooling water.

[0036] The rotating rod 12 is divided into two sections, and the diameters of the upper and lower sections are different. The diameter of the upper section is smaller than that of the lower section, and the diameter of the lower section is smaller than that of the drill rod 1. The top opening of the water inlet groove 4 is located at the end face of the drill rod 1, and the top opening of the water return groove 5 is located at the end face of the lower section of the rotating rod 12, so that the cooling water can be transported during the rotation of the drill rod 1.

[0037] The temperature of the flowing water in the water inlet groove 4 is relatively low, and the water inlet groove 4 is located closer to the drill bit 8, so that the high temperature generated by the drill bit 8 during use can exchange heat with the cooling water in the water inlet groove 4, and the water inlet groove 4 is dispersedly arranged to avoid eddy currents generated by the cooling water when the drill bit 8 rotates, avoid high and low temperature differences in the cooling water, and make the cooling water flow smoother.

[0038] During specific use, when the drill bit 8 needs to be replaced, the fixing screw 13 at the bottom end of the drill bit 8 is removed, and then the drill bit 8 is pulled out downward, and a new drill bit 8 is inserted from the bottom end of the connecting rod 6. At this time, the positioning strip 7 and the positioning groove 14 are aligned, and then the fixing bolt 13 is tightened to complete the replacement of the drill bit 8. The drill bit 8 does not need to be replaced as a whole after it is damaged, which saves costs and has good economy.

[0039] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A metal electroplated grinding wheel rod for drilling, characterized in that: The drill bit (8) comprises a drill rod (1) and a drill bit (8), wherein the middle part of the drill rod (1) is a rotating rod (12), the bottom end of the drill rod (1) is a connecting rod (6), a plurality of positioning strips (7) are arranged on the surface of the connecting rod (6), a plurality of positioning grooves (14) are arranged inside the drill bit (8), the drill bit (8) is sleeved on the bottom end of the connecting rod (6), and the bottom end of the drill bit (8) is fixedly connected to the bottom end of the connecting rod (6) by a fixing bolt (13).

2. A metal electroplated grinding wheel rod for drilling as claimed in claim 1, characterized in that: The outer surface of the rotating rod (12) is sleeved with a cooling shell, and a water return chamber (2) and a water inlet chamber (3) are arranged inside the cooling shell.

3. A metal electroplated grinding wheel rod for drilling as claimed in claim 2, characterized in that: The connection rod (6) is provided with a water return groove (5) inside, the positioning bar (7) is provided with a water inlet groove (4) inside, and the bottom ends of the water inlet groove (4) and the water return groove (5) are connected.

4. A metal electroplated grinding wheel rod for drilling as claimed in claim 3, characterized in that: The top end of the water inlet groove (4) extends to the interior of the drill rod (1) and is connected to the water inlet chamber (3), and the top end of the water return groove (5) extends to the interior of the drill rod (1) and is connected to the water return chamber (2).

5. A metal electroplated grinding wheel rod for drilling as claimed in claim 4, characterized in that: The outer surface of the drill bit (8) is provided with a chip removal groove (9), and the bottom end of the drill bit (8) is conical.

6. A metal electroplated grinding wheel rod for drilling as claimed in claim 5, characterized in that: The cooling shell is rotatably connected to the rotating rod (12) via a sealed bearing.

7. A metal electroplated grinding wheel rod for drilling as claimed in claim 6, characterized in that: An isolation groove (15) is provided at the bottom end of the drill bit (8).

8. A metal electroplated grinding wheel rod for drilling as claimed in claim 7, characterized in that: The cross section of the positioning strip (7) is provided with an arc shape, and the shape of the positioning groove (14) matches the positioning strip (7).

9. A metal electroplated grinding wheel rod for drilling as claimed in claim 8, characterized in that: The water return chamber (2) is connected to a water outlet pipe (11), and the water inlet chamber (3) is connected to a water inlet pipe (10).

10. A metal electroplated grinding wheel rod for drilling as claimed in claim 9, characterized in that: The water return chamber (2) and the water inlet chamber (3) are separated by a sealing bearing.

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