Pressure buffering type alloy drill

Abstract

The utility model discloses a slow pressure type alloy drill which comprises an alloy drill bit and a drill rod, a connecting sleeve is arranged on one side of the alloy drill bit, and the alloy drill bit is connected with the drill rod through the connecting sleeve. A pressure buffering piece is arranged between the drill rod and the connecting sleeve, a limiting piece used for limiting the stroke of the connecting sleeve is arranged outside the connecting sleeve, and the pressure buffering piece is used for controlling the alloy drill bit to slowly move from the drill rod in the rotating process of the drill rod. The alloy drill bit can slowly move in the rotating process of the drill rod through the pressure buffering piece, and impact and damage caused when overlarge pressure is applied and enters the surface of a workpiece are avoided. And due to the existence of the pressure buffering piece, the pressure can be better controlled in the drilling process, damage to the workpiece caused by too large pressure is avoided, and the machining quality of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to a slow-pressure alloy drill. Background Art

[0002] The carbide drill is a cutting tool which consists of a base material and a carbide cutting edge.

[0003] The matrix material is usually high-speed steel or other high-strength metal materials with good toughness and strength, and can withstand vibration and impact during the cutting process.

[0004] In the traditional drilling process, an alloy drill usually generates a certain pressure when entering the surface of a workpiece with high hardness or brittleness. When the pressure applied is too large, this may cause damage to the workpiece. Therefore, a slow-pressure alloy drill is proposed. Utility Model Content

[0005] The utility model aims to provide a slow-pressure alloy drill to solve the problem in the above-mentioned background technology that in the traditional drilling process, the alloy drill bit applies too much pressure, which easily leads to damage to the workpiece.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a slow-pressure alloy drill, comprising an alloy drill bit and a drill rod, a connecting sleeve is provided on one side of the alloy drill bit, and the alloy drill bit is connected to the drill rod through the connecting sleeve;

[0007] A pressure relief member is provided between the drill rod and the connecting sleeve, and a limiter for limiting the travel of the connecting sleeve is provided outside the connecting sleeve.

[0008] The pressure relief member is used to control the alloy drill bit to move slowly from the drill rod during the rotation of the drill rod.

[0009] Preferably, the inner wall of the connecting sleeve is provided with a built-in cavity for accommodating the pressure relief member, and the shape of the built-in cavity is polygonal.

[0010] Preferably, the pressure relief member comprises a pressure relief spring arranged inside the connecting sleeve, and the pressure relief spring cooperates with the inner wall of the connecting sleeve.

[0011] Preferably, the limiting member comprises a guide sleeve sleeved on the outer circumference of the drill rod, guide grooves are provided on both sides of the guide sleeve, and scale lines for calibrating the movement of the alloy drill bit are provided on one side of the guide groove.

[0012] Preferably, the guide sleeve is located on the side of the drill pipe closer to the connecting sleeve, and the guide sleeve extends to the outer periphery of the connecting sleeve.

[0013] Preferably, a spacing is provided between the guide sleeve and the drill rod, and the spacing matches the wall thickness of the connecting sleeve, so that the guide sleeve and the drill rod slide on the inner wall and the outer wall of the connecting sleeve respectively.

[0014] Preferably, guide ear plates cooperating with the guide groove are arranged on both sides of the upper part of the connecting sleeve, so that the connecting sleeve can move linearly inside the guide groove through the guide ear plates.

[0015] Preferably, the drill rod and the built-in cavity cooperate with each other so that the drill rod drives the alloy drill bit to rotate through the connecting sleeve.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a pressure relief piece so that the alloy drill bit can move slowly during the rotation of the drill rod, thereby avoiding impact and damage caused by excessive pressure when entering the workpiece surface.

[0018] The presence of the pressure relief piece enables better control of the pressure during the drilling process, avoids damage to the workpiece due to excessive pressure, and improves the processing quality of the workpiece.

[0019] A built-in cavity is arranged on the inner wall of the connecting sleeve, and its shape is polygonal. This design provides a stable rotation effect, enables the alloy drill bit to operate better, and ensures the smooth rotation of the alloy drill bit.

[0020] By arranging a limiter on the outside of the connecting sleeve, the stroke of the connecting sleeve can be limited, ensuring the effective operating range of the pressure relief member and avoiding problems caused by exceeding the design range.

[0021] The design of the guide sleeve and guide groove in the limiter provides accurate position calibration, making the moving position of the alloy drill bit visible and convenient for the operator to adjust and control.

[0022] The matching spacing between the drill rod and the connecting sleeve and the guide ear plate design of the connecting sleeve enable the drill rod and the connecting sleeve to slide between the inner wall and the outer wall, providing more flexible operating performance.

[0023] Through the pressure-relief design, the processing efficiency can be improved while ensuring the processing quality, the damage to the workpiece and the generation of waste can be reduced, and the production efficiency and economic benefits can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the connecting sleeve of an embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the drill rod structure of an embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the cutaway structure of an embodiment of the utility model.

[0028] In the figure: 1, alloy drill bit; 101, connecting sleeve; 101a, built-in cavity; 101b, guide ear plate; 2, drill rod; 3, pressure relief member; 301, pressure relief spring; 4, limit member; 401, guide sleeve; 401a, guide groove; 401b, scale pattern. DETAILED DESCRIPTION

[0029] In order to solve the problem that excessive pressure applied by the alloy drill bit in the traditional drilling process may easily lead to damage to the workpiece, the embodiment of the utility model provides a slow-pressure alloy drill. The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-4 The utility model provides a slow-pressure alloy drill, comprising an alloy drill bit 1 and a drill rod 2, wherein a connecting sleeve 101 is provided on one side of the alloy drill bit 1, and the alloy drill bit 1 is connected to the drill rod 2 through the connecting sleeve 101;

[0031] A pressure relief member 3 is provided between the drill rod 2 and the connecting sleeve 101, and a limit member 4 for limiting the travel of the connecting sleeve 101 is provided outside the connecting sleeve 101.

[0032] The inner wall of the connecting sleeve 101 is provided with an inner cavity 101 a for accommodating the pressure relief member 3 , and the shape of the inner cavity 101 a is polygonal.

[0033] The pressure relief member 3 includes a pressure relief spring 301 disposed inside the connecting sleeve 101 , and the pressure relief spring 301 cooperates with the inner wall of the connecting sleeve 101 .

[0034] The position-limiting member 4 comprises a guide sleeve 401 sleeved on the outer periphery of the drill rod 2, and guide grooves 401a are provided on both sides of the guide sleeve 401, and a scale pattern 401b for calibrating the movement of the alloy drill bit 1 is provided on one side of the guide sleeve 401a. The guide sleeve 401 is located on the side of the drill rod 2 closer to the connecting sleeve 101, and the guide sleeve 401 extends to the outer periphery of the connecting sleeve 101. A spacing is provided between the guide sleeve 401 and the drill rod 2, and the spacing matches the wall thickness of the connecting sleeve 101, so that the guide sleeve 401 and the drill rod 2 slide on the inner wall and the outer wall of the connecting sleeve 101 respectively. Guide ear plates 101b that match the guide grooves 401a are provided on both sides of the upper part of the connecting sleeve 101, so that the connecting sleeve 101 moves linearly inside the guide grooves 401a through the guide ear plates 101b.

[0035] The drill rod 2 and the internal cavity 101 a cooperate with each other, so that the drill rod 2 drives the alloy drill bit 1 to rotate through the connecting sleeve 101 .

[0036] The pressure relief member 3 is used to control the alloy drill bit 1 to move slowly from the drill rod 2 during the rotation of the drill rod 2 .

[0037] The working principle of the slow-pressure alloy drill provided by the utility model is as follows: when in use, the alloy drill bit 1 is attached to the surface of the workpiece to be processed, and then the slow-pressure spring 301 located inside the connecting sleeve 101 is squeezed by the drill rod 2, and the slow-pressure spring 301 is compressed and deformed by force, and then a certain elastic force is generated, and the alloy drill bit 1 is applied to the surface of the workpiece by the elastic force;

[0038] When the drill rod 2 squeezes the pressure relief spring 301, the deformation of the pressure relief spring 301 under compression can be determined by the scale line, thereby controlling the magnitude of the elastic force.

[0039] At the same time, the final movement of the pressure relief drill bit can be observed to control the depth of the drilling.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slow-pressure alloy drill, characterized in that: It comprises an alloy drill bit (1) and a drill rod (2), wherein a connecting sleeve (101) is provided on one side of the alloy drill bit (1), and the alloy drill bit (1) is connected to the drill rod (2) via the connecting sleeve (101); A pressure relief member (3) is provided between the drill rod (2) and the connecting sleeve (101), and a limit member (4) for limiting the travel of the connecting sleeve (101) is provided outside the connecting sleeve (101). The pressure relief member (3) is used to control the alloy drill bit (1) to move slowly from the drill rod (2) during the rotation of the drill rod (2).

2. The slow-pressure alloy drill according to claim 1, characterized in that: The inner wall of the connecting sleeve (101) is provided with a built-in cavity (101a) for accommodating the pressure relief member (3); the built-in cavity (101a) is in the shape of a polygon.

3. The slow-pressure alloy drill according to claim 2, characterized in that: The pressure relief member (3) comprises a pressure relief spring (301) arranged inside the connecting sleeve (101), and the pressure relief spring (301) cooperates with the inner wall of the connecting sleeve (101).

4. The slow-pressure alloy drill according to claim 3, characterized in that: The position-limiting member (4) comprises a guide sleeve (401) sleeved on the outer circumference of the drill rod (2), guide grooves (401a) being provided on both sides of the guide sleeve (401), and a scale pattern (401b) for calibrating the movement of the alloy drill bit (1) being provided on one side of the guide groove (401a).

5. The slow-pressure alloy drill according to claim 4, characterized in that: The guide sleeve (401) is located on a side of the drill rod (2) that is closer to the connecting sleeve (101), and the guide sleeve (401) extends to the outer periphery of the connecting sleeve (101).

6. The slow-pressure alloy drill according to claim 5, characterized in that: A spacing is provided between the guide sleeve (401) and the drill rod (2), and the spacing matches the wall thickness of the connecting sleeve (101), so that the guide sleeve (401) and the drill rod (2) slide on the inner wall and outer wall of the connecting sleeve (101), respectively.

7. The slow-pressure alloy drill according to claim 6, characterized in that: Guide ear plates (101b) that cooperate with the guide groove (401a) are arranged on both sides of the upper part of the connecting sleeve (101), so that the connecting sleeve (101) can move linearly inside the guide groove (401a) through the guide ear plates (101b).

8. The slow-pressure alloy drill according to claim 7, characterized in that: The drill rod (2) and the built-in cavity (101a) cooperate with each other, so that the drill rod (2) drives the alloy drill bit (1) to rotate through the connecting sleeve (101).

Images