Tool for machining slips of coal mine drilling machine

Abstract

The utility model discloses a tool for machining a coal mine drilling machine slip, which comprises a body arranged on a numerical control machine tool and detachably connected with the numerical control machine tool. The clamping groove is a 1 / 3 arc groove, is a through groove and is formed in the body, the slips are arranged in the clamping groove, one inner wall of the clamping groove is attached to the outer wall of the curved surface of the slips, the other inner wall of the clamping groove is attached to the bottom surfaces of the slips, the top surfaces of the slips are higher than the top surface of the clamping groove, and the end surfaces of the slips are located on the outer side of the end surface of the clamping groove. The clamping groove can clamp the bottom face and the outer wall of the curved surface of the column slip at a time so that the two end faces and the top face of the slip can be rapidly machined on a numerical control machine tool, when the bottom face needs to be machined, the bottom face can be machined by turning over the slip, and the beneficial effects that the machining time is short, and efficiency is high are achieved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine drilling rig drill rod slip processing technology, and in particular to a tooling for processing coal mine drilling rig slips. Background Technology

[0002] Slips on a coal mine drilling rig are a type of clamping device primarily used to loosen during drilling operations and to automatically clamp or release when drill pipe needs to be inserted or removed. The main function of slips is to hold and suspend drill pipe, casing string, and tubing string, preventing them from falling into the well.

[0003] The slips consist of slip pieces, slip teeth, and a handle. They are conical in shape and wedge into the inner hole of the rotary table; the inner wall forms a circular hole, on which slip teeth are fitted. The drill pipe slips are a three-piece structure connected by a hinge pin, consisting of three identical slips, each arc-shaped and occupying a 120° angle. The three slips together grip the outer wall of the drill pipe, providing protection. When machining on CNC machine tools, a semi-circular fixture is usually used. The slip is installed in this fixture for machining, so that the outer wall of the slip's arc shape fits against the inner wall of the fixture. However, both ends of the slip are 120° annular surfaces, and the top surface is connected to the two end faces respectively. The top surface is inclined relative to the axis of the circle it is in, and the top surface of the slip is lower than the top surface of the fixture. This means that when the machine tool is machining the top surface and cross-section of the slip, it is necessary to adjust the machining angle and position of the slip on the fixture, which increases the number of machining steps and requires a longer time to machine the slip, resulting in low work efficiency.

[0004] Therefore, in the existing processing, the problem of long processing time and low work efficiency exists in the process of machining slips that can only be processed by changing the position and angle of the tooling. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a tooling for processing slips of coal mine drilling rigs, which clamps the slips into the body in one go through a clamping groove.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A tooling for processing slips of coal mine drilling rigs, comprising:

[0008] The main body is mounted on a CNC machine tool and is detached and connected to the CNC machine tool.

[0009] The clamping groove is a 1 / 3 circular arc groove and a through groove, which is opened on the body. The slip is installed in the clamping groove. One inner wall of the clamping groove is in contact with the curved outer wall of the slip, and the other inner wall of the clamping groove is in contact with the bottom surface of the slip. The top surface of the slip is higher than the top surface of the clamping groove, and the end face of the slip is located outside the end face of the clamping groove.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The clamping groove can clamp the bottom surface and the curved outer wall of the column slip at one time, and the purpose is to quickly process the two end surfaces and the top surface of the slip on the numerical control machine tool, when the bottom surface needs to be processed, the slip can be turned over to achieve, which has the characteristics of quick processing time period and high efficiency.

[0012] Further preferably, the clamping groove comprises:

[0013] The first clamping surface is curved and is attached to the curved outer wall of the slip, and extends from one end surface of the body to the other end surface.

[0014] The second clamping surface is flat and is attached to the bottom surface of the slip, and one edge thereof is connected to one edge of the first clamping surface, and the other edge thereof is connected to the top surface of the body, and the other edge of the first clamping surface is connected to the top surface of the body.

[0015] By using the above technical scheme, the first clamping surface and the second clamping surface can clamp the bottom surface and the curved outer wall of the column slip at one time, so that the numerical control machine tool can process the two end surfaces and the top surface of the slip at one time, when the bottom surface needs to be processed, the slip is turned over to attach the top surface to the second clamping surface, so that the bottom surface is higher than the body, and the processing of the slip by the numerical control machine tool is facilitated.

[0016] Further preferably, the first clamping surface is an arc surface with a central angle of 120°.

[0017] By using the above technical scheme, the curved outer wall of the slip can be well attached together with the second clamping surface, and the clamping effect on the slip is good.

[0018] Further preferably, the radius of the circle where the first clamping surface is located is smaller than the radius of the circle where the slip is located.

[0019] By using the above technical scheme, it is ensured that the top surface or the bottom surface of the slip that needs to be processed can be higher than the body, and the numerical control machine tool can quickly and efficiently process the slip.

[0020] Further preferably, the angle between the second clamping surface and the top surface of the body is 60°.

[0021] By using the above technical scheme, it is ensured that the first clamping surface is an arc surface with a central angle of 120°, which meets the requirements of clamping the slip.

[0022] Further preferably, the side wall of the body is provided with:

[0023] The horizontal hole is a through hole and is horizontally located on one side wall of the body.

[0024] The vertical hole is provided on the top surface of the body and is opposite to the horizontal hole, and the horizontal hole is used to assist the vertical hole in moving and installing the body from the machine tool.

[0025] By adopting the technical scheme, if the transverse hole is a threaded hole, the transverse hole can also limit the position of the slip in the clamping groove through a fixing member such as a bolt, and the vertical hole and the transverse hole can assist tools such as a screw rod and a screw tap to quickly move the installation body, and the device has the characteristic of being fast.

[0026] Further optimization is that the transverse hole is a through hole, and the vertical hole is a blind hole.

[0027] By adopting the technical scheme, the transverse hole can limit the position of the slip in the clamping groove together with the fixing member, and the vertical hole can assist the tool to move the body. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structural schematic view of the embodiment.

[0029] Figure 2 It is a structural schematic view of the clamping groove in the embodiment.

[0030] Figure 3 It is a planar structural schematic view of the clamping groove in the embodiment.

[0031] Figure 4 It is a structural schematic view of the first clamping surface and the second clamping surface in the embodiment.

[0032] Reference signs: 1 - body; 11 - clamping groove; 111 - first clamping surface; 112 - second clamping surface; 12 - transverse hole; 13 - vertical hole; 2 - slip. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The utility model is further described in detail.

[0034] A tool for machining a slip of a coal mine drilling machine, as shown in the figure, comprises: Figure 1 As shown in the figure, the tool comprises:

[0035] The body 1 is arranged on a numerical control machine tool and detachably connected with the numerical control machine tool.

[0036] The clamping groove 11 is a 1 / 3 circular arc groove and a through groove, is arranged on the body 1, and the slip 2 is arranged in the clamping groove 11; one inner wall of the clamping groove 11 is attached to the curved outer wall of the slip 2, another inner wall of the clamping groove 11 is attached to the bottom surface of the slip 2, the top surface of the slip 2 is higher than the top surface of the clamping groove 11, and the end surface of the slip 2 is located outside the end surface of the clamping groove 11.

[0037] The clamping groove 11 can clamp the bottom surface and the curved outer wall of the slip 2 at one time, and the purpose is to quickly machine the two end surfaces and the top surface of the slip 2 on the numerical control machine tool; when the bottom surface needs to be machined, the slip 2 can be turned over to achieve the purpose, and the tool has the characteristics of fast machining time period and high efficiency.

[0038] Specifically, as shown in Figure 3 and Figure 4 , the clamping groove 11 in the embodiment includes:

[0039] The first clamping surface 111 is curved and is in contact with the curved outer wall of the slip bowl 2, and extends from one end surface of the body 1 to the other end surface.

[0040] The second clamping surface 112 is flat and is in contact with the bottom surface of the slip bowl 2, and one edge of the second clamping surface 112 is connected to one edge of the first clamping surface 111, and the other edge of the second clamping surface 112 is connected to the top surface of the body 1, and the other edge of the first clamping surface 111 is connected to the top surface of the body 1. The top surface of the slip bowl 2 is higher than the body 1.

[0041] The first clamping surface 111 and the second clamping surface 112 can clamp the bottom surface and the curved outer wall of the slip bowl 2 at one time, so that the numerical control machine tool can machine the two end surfaces and the top surface of the slip bowl 2 at one time. When the bottom surface needs to be machined, the slip bowl 2 is flipped to make the top surface in contact with the second clamping surface 112, so that the bottom surface is higher than the body 1, and the numerical control machine tool can quickly machine the slip bowl 2.

[0042] Specifically, as shown in Figure 2 and Figure 3 , the first clamping surface 111 in the embodiment is an arc surface with a central angle of 120°, which can be well in contact with the curved outer wall of the slip bowl 2, and the second clamping surface 112 can well clamp the slip bowl 2.

[0043] Specifically, as shown in Figure 1 and Figure 3 , the radius of the circle on which the first clamping surface 111 is located is smaller than the radius of the circle on which the slip bowl 2 is located, so that the top surface or the bottom surface of the slip bowl 2 that needs to be machined can be higher than the body 1, and the numerical control machine tool can quickly and efficiently machine the slip bowl 2.

[0044] Specifically, as shown in Figure 3 and Figure 4 , the angle between the second clamping surface 112 and the top surface of the body 1 in the embodiment is 60°, which ensures that the first clamping surface 111 is an arc surface with a central angle of 120°, and meets the requirements of clamping the slip bowl 2.

[0045] Specifically, as shown in Figure 1 and Figure 2 , the side wall of the body 1 in the embodiment is provided with:

[0046] The horizontal hole 12 is a through hole and is horizontally located on one side wall of the body 1.

[0047] The vertical hole 13 is provided on the top surface of the body 1 and is opposite to the horizontal hole 12, and the horizontal hole 12 is used to assist the vertical hole 13 in moving and installing the body 1 from the machine tool.

[0048] If the transverse hole 12 is a threaded hole, the transverse hole 12 can also define the position of the slip 2 on the clamping groove 11 through a fixing member such as a bolt, and the vertical hole 13 and the transverse hole 12 can assist the tool such as a screw rod and a screw tap to quickly move the installation body 1, having the characteristic of quickness.

[0049] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , in the embodiment, the transverse hole 12 is a through hole, and the vertical hole 13 is a blind hole, so that the transverse hole 12 can define the position of the slip 2 in the clamping groove 11 with the fixing member, and the vertical hole 13 can assist the tool to move the installation body 1.

[0050] Please refer to Figures 1-4 , the principle process of the embodiment is described as follows:

[0051] When the tooling is installed on the machine tool, the slip 2 is placed in the clamping groove 11, wherein the curved outer wall of the slip 2 is attached to the first clamping surface 111, the top surface is higher than the installation body 1, the two end surfaces are respectively located outside the two sides of the end surface of the installation body 1, the bottom surface is attached to the second clamping surface 112, and the bottom surface edge line is in contact with the connection between the first clamping surface 111 and the second clamping surface 112. Then the bolt passes through the transverse hole 12, which is not shown in the drawings and belongs to the prior art, and the bolt is in abutment with the curved outer wall of the slip 2, which well defines the specific position of the slip 2. Then the end surface and the top surface of the slip 2 are machined by the tool of the numerical control machine tool. Then the slip 2 is turned over, the top surface of the slip 2 is attached to the second clamping surface 112, and at this time the bottom surface is higher than the installation body 1, so that the bottom surface can be machined.

[0052] As described above, the clamping groove 11 formed by the second clamping surface 112 and the first clamping surface 111 not only can clamp the slip 2 once, but also can ensure that the top surface or the bottom surface of the slip 2 is higher than the installation body 1, so that the top surface or the bottom surface of the slip 2 can be directly machined without changing the machining angle of the slip 2 in the tooling or the position of the tooling, thereby achieving the purpose of shortening the machining time and improving the work efficiency. The tooling structure is simple and easy to cooperate with the slip 2 and be installed together, which is convenient for installation and operation.

[0053] The specific embodiment is only an explanation of the utility model, which is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as it is within the protection scope of the utility model, it is protected by the patent law.

Claims

1. A tooling for machining a coal mine drill bit shoe, characterised in that, The utility model relates to a detachable clamp for numerical control machine tool, comprising: A body (1) is arranged on a numerical control machine tool and detachably connected with the numerical control machine tool; A clamping groove (11) is a 1 / 3 circular arc groove and a through groove, which is arranged on the body (1), and a slip (2) is arranged in the clamping groove (11), one inner wall of the clamping groove (11) is matched with the curved outer wall of the slip (2), the other inner wall of the clamping groove (11) is matched with the bottom surface of the slip (2), the top surface of the slip (2) is higher than the top surface of the clamping groove (11), and the end surface of the slip (2) is located outside the end surface of the clamping groove (11).

2. A tooling for machining a coal mine drill bit shoe according to claim 1, characterised in that, The clamping groove (11) comprises: A first clamping surface (111) is curved and matched with the curved outer wall of the slip (2), and extends from one end surface of the body (1) to the other end surface; A second clamping surface (112) is flat and matched with the bottom surface of the slip (2), one edge of the second clamping surface (112) is connected with one edge of the first clamping surface (111), the other edge of the second clamping surface (112) is connected with the top surface of the body (1), and the other edge of the first clamping surface (111) is connected with the top surface of the body (1); and the top surface of the slip (2) is higher than the body (1).

3. A tooling for machining a coal mine drill bit shoe according to claim 2, characterised in that, The first clamping surface (111) is an arc surface with a central angle of 120 degrees.

4. The tooling for machining coal mine drill rig slips according to claim 2, characterised in that, The radius of the circle where the first clamping surface (111) is located is smaller than the radius of the circle where the slip (2) is located.

5. The tooling for machining coal mine drill rig slips according to claim 2, characterised in that, The included angle between the second clamping surface (112) and the top surface of the body (1) is 60 degrees.

6. The tooling for machining coal mine drill rig slips according to claim 2, characterised in that, A horizontal hole (12) is a through hole and horizontally arranged on one side wall of the body (1); A vertical hole (13) is arranged on the top surface of the body (1) and opposite to the horizontal hole (12), and the horizontal hole (12) is used for assisting the vertical hole (13) to move and install the body (1) on the numerical control machine tool. The horizontal hole (12) is a through hole, and the vertical hole (13) is a blind hole.

7. A tooling for machining a coal mine drill bit shoe according to claim 6, characterised in that, ​

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