CN216802082U - Tool for removing inner hole flash during friction welding - Google Patents
Tool for removing inner hole flash during friction welding Download PDFInfo
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- CN216802082U CN216802082U CN202220396604.2U CN202220396604U CN216802082U CN 216802082 U CN216802082 U CN 216802082U CN 202220396604 U CN202220396604 U CN 202220396604U CN 216802082 U CN216802082 U CN 216802082U
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- friction welding
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Abstract
The utility model belongs to the technical field of friction welding, and particularly discloses a tool for removing inner hole burrs during friction welding, which comprises a central rod main body, wherein one end of the central rod main body is integrally connected with an installation part, one end of the central rod main body, which is far away from the installation part, is integrally connected with a guide part, and the diameter of the outer surface of the central rod main body is smaller than the diameter of the inner surfaces of inner holes of a drill rod and a connector.
Description
Technical Field
The utility model belongs to the technical field of friction welding, and particularly relates to a tool for removing inner hole flash during friction welding.
Background
In various rock drilling tools produced and manufactured in the rock drilling industry at present, most of drill rods are rod-shaped, for example, drill rods R32, T38, T51 and other various drill rods and rock drilling tools such as drill rod tails and the like, the whole structure of the drill rods is shown in fig. 1, an inner hole 3 is formed in the middle of each drill rod 1, a connector 2 is connected to one end of each drill rod 1, and the inner hole 3 is coaxially formed in the middle of each connector 2.
In the prior art, the drill rod 1 and the joint 2 are generally welded by a friction welding machine, and after the welding is completed, the drill rod 1 and the joint 2 are integrally connected, but molten iron is extruded when the inner holes 3 of the drill rod 1 and the joint 2 are friction welded, the extruded molten iron forms a flash after being cooled, and the flash easily blocks the inner holes 3 of the drill rod 1 and the joint 2, so that the flash in the inner holes 3 needs to be further removed after the friction welding of the drill rod 1 and the joint 2 is completed.
Among the prior art, get rid of the frock of overlap in the hole is various, has the adoption to creep into the mode and get rid of, is as patent application number: CN202121062305.7 discloses a friction stir welding stirring head of deburring, including the stirring head body and the cutter body that is used for cutting the deburring, the cutter body is hollow nested structure, the front end of cutter body is provided with the cutting edge or is provided with the installation position that is used for installing the blade, the coaxial cover of cutter body is established outside the stirring head body to can be followed stirring head body axial regulation, through locking structure circumference and axial locking between cutter body and the stirring head body.
The removal is also carried out by punching, for example, the patent application number is: CN201120068964.1 discloses a device for removing flash of an inner hole of a drill rod friction welding joint, which comprises a hydraulic cylinder and a punching shear cutter which are used as power sources; the punching and shearing tool is a first punching and shearing tool for removing the drill rod joint friction welding flash with the diameter of the water hole equal to the aperture of the welding end or a second punching and shearing tool for removing the drill rod joint friction welding flash with the diameter of the water hole smaller than the aperture of the welding end; the first punching and shearing tool is of a cylindrical structure with one closed end, the open end of the first punching and shearing tool is provided with a spiral knife edge, and the closed end of the first punching and shearing tool is provided with internal threads; the closed end of the first punching shear cutter is in threaded connection with the end part of the ejector rod of the hydraulic cylinder; the second punching and shearing tool comprises a circular table section and a cylinder section which are fixedly connected into a whole, and a spiral knife edge is arranged at the end part of the cylinder section.
Above-mentioned this kind of frock of overlap in current getting rid of hole can be used for getting rid of the overlap in the hole, but this kind of frock of overlap in current getting rid of the hole all is the friction welding completion back, need extra increase overlap to get rid of the process, the realization is got rid of the overlap in the hole, need to increase extra overlap and get rid of the process, it is complicated to make production processes, reduce result of use and consuming time, and consume the cutter, high in production cost, and this kind of frock overall structure that the overlap in current getting rid of the hole is complicated, high in manufacturing cost, high in use cost, and then reduce the practicality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem of providing a tool for removing inner hole flash in friction welding, which has a simple structure, can remove the inner flash in a metal melting state when a workpiece is welded, improves the using effect, and reduces the complexity of production procedures.
In order to solve the technical problems, the utility model provides the following technical scheme:
a tool for removing inner hole flash in friction welding comprises a central rod main body; the one end an organic whole of well core rod main part is connected with the installation department, well core rod main part is kept away from the one end an organic whole of installation department and is connected with the guide part, the surface diameter of well core rod main part is less than the internal surface diameter of the hole of drilling rod and joint.
The following is a further optimization of the above technical solution of the present invention:
the surface diameter of installation department is greater than the surface diameter of well core rod main part, the installation department is close to the one end of well core rod main part and is provided with the top junction surface.
Further optimization: an installation counter bore is formed in one end face, far away from the central rod main body, of the installation portion, and the overall length of the installation counter bore is smaller than or equal to that of the installation portion.
Further optimization: an annular groove is formed in the outer surface of the mounting portion, and the annular groove and the mounting portion are arranged coaxially.
Further optimization: the one end that well core rod main part was kept away from to the guide part is provided with the direction terminal surface, the length between direction terminal surface and the top joint face is greater than the whole length that connects.
And (4) further optimizing: the overall shape of the mounting counter bore is one of a round counter bore shape and a square counter bore shape.
Further optimization: the diameter of the outer surface of the central rod main body is equal to the diameter of the inner surface of the inner hole minus 0.10-0.50 mm.
By adopting the technical scheme, the tool is ingenious in concept and reasonable in structure, the tool can be conveniently installed on the power main shaft of the friction welding machine, the joint and the drill rod can be conveniently brazed through the tool, the main body of the center rod is located in the inner holes of the joint and the drill rod in the friction welding process, molten iron can be prevented from extruding into the inner holes when the joint and the drill rod are in friction welding, the inner holes are prevented from being flapped, and the using effect is improved.
According to the technical scheme, the flashes in the inner hole can be removed in the friction welding process of the joint and the drill rod, the processes of removing the flashes are not required to be additionally added, the production cost can be reduced, and the production efficiency is improved.
The utility model is further illustrated with reference to the following figures and examples.
Drawings
FIG. 1 is a schematic illustration of a prior art drill pipe and coupling;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 3 is a schematic view of a friction welder mounted on an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the embodiment of the present invention in use.
In the figure: 1-a drill rod; 2-a linker; 3-inner hole; 4-a center rod body; 5-an installation part; 51-top junction surface; 52-an annular groove; 53-mounting a counter bore; 6-a guide part; 61-a guide end face; 7-a power spindle; 71-a mounting cavity; 72-mounting block.
Detailed Description
Example 1: referring to fig. 1-4, a tool for removing inner bore flash during friction welding includes a center rod body 4; the one end an organic whole of well core rod main part 4 is connected with installation department 5, well core rod main part 4 is kept away from the one end an organic whole of installation department 5 and is connected with guide part 6, the surface diameter of well core rod main part 4 is less than the drilling rod 1 and connects the internal surface diameter of the hole 3 of 2.
Design like this, when using, can install installation department 5 on friction welding machine's power main shaft, alright install this a frock that is used for getting rid of hole overlap when friction welding on friction welding machine's power main shaft 7 this moment, convenient equipment and installation.
Then the joint 2 is sleeved on the central rod main body 4, the joint 2 is fixedly connected with the power main shaft 7, then the drill rod 1 is sleeved on the central rod main body 4, and the drill rod 1 is fixedly arranged on the friction welding machine.
At the moment, the power spindle 7 rotates to output power to drive the joint 2 to rotate, the joint 2 rotates and moves to one side close to the drill rod 1, the joint 2 is in contact with the drill rod 1 to generate friction, the contact part is heated and melted, after the temperature distribution and deformation of a friction welding area reach a certain degree, braking and braking are started, the axial force is rapidly increased, and at the moment, metals at the welding area are firmly welded together through mutual diffusion and recrystallization, so that the whole welding process is completed.
In whole friction weld process, well core rod main part 4 is located the hole 3 of joint 2 and drilling rod 1, and then can prevent to connect 2 and drilling rod 1 in hole 3 is crowded to the fused iron when carrying out friction weld, and then can prevent that the condition of overlap from taking place to appear in hole 3, improves the result of use.
And the flash removing process is not required to be additionally added after the welding of the drill rod 1 and the joint 2 is finished, so that the production cost can be reduced, and the production effect is improved.
The surface diameter of installation department 5 is greater than the surface diameter of well core rod body 4, the installation department 5 is close to the one end of well core rod body 4 and is provided with top contact surface 51.
After the joint 2 is sleeved on the central rod main body 4, one end of the joint 2 is abutted with the abutting surface 51.
With such a design, the axial position of the joint 2 can be positioned by the abutting surface 51, which is convenient for use.
An annular groove 52 is formed in the outer surface of the mounting portion 5, the overall shape of the annular groove 52 is annular groove-shaped, and the annular groove 52 and the mounting portion 5 are coaxially arranged.
An installation counter bore 53 is formed in the end face, away from the central rod body 4, of the installation portion 5, and the overall shape of the installation counter bore 53 is circular.
The overall length of the mounting counter bore 53 is less than or equal to the overall length of the mounting portion 5.
The middle part of the power main shaft 7 is coaxially provided with a mounting cavity 71, and the diameter of the inner surface of the mounting cavity 71 is larger than that of the outer surface of the joint 2.
The inner side surface of the mounting cavity 71 is integrally connected with a mounting block 72, the mounting block 72 and the mounting cavity 71 are coaxially arranged, and the overall shape of the mounting block 72 is matched with the shape of the inner surface of the mounting counter bore 53.
By the design, when the tool is used, the mounting part 5 can be mounted in the mounting cavity 71, the mounting counter bore 53 is clamped on the mounting block 72, and the axial position of the tool for removing the inner hole flash during friction welding can be limited by clamping the mounting counter bore 53 and the mounting block 72, so that the tool is convenient to use.
And the mounting counter bore 53 is circular counter bore shape, and then the surface shape of the mounting block 72 is cylindric, and whether this frock for getting rid of hole overlap rotates in the installation cavity 71 when friction welding this moment can not influence the performance of this frock.
The power spindle 7 is provided with a clamping assembly, the clamping assembly is used for clamping the connector 2, and then the connector 2 can be fixedly installed on the power spindle 7, and the power spindle is convenient to use.
In the present embodiment, the power spindle 7 and the clamping assembly are both prior art, and have the same structure as the power spindle 7 and the clamping assembly of the conventional friction welding machine.
The diameter of the outer surface of the central rod main body 4 is equal to the diameter of the inner surface of the inner hole 3 minus 0.10-0.50 mm.
In the present embodiment, the outer surface diameter of the center rod body 4 is preferably: the diameter of the inner surface of the inner bore 3 is reduced by 0.20 mm.
Design like this, can be convenient establish connect 2 or 1 cover of drilling rod on well core rod main part 4 to there is the spacing distance between the surface that can make well core rod main part 4 and the internal surface of hole 3, improve the result of use.
The outer surface of the guide part 6 is in the shape of a truncated cone, so that the connector 2 and the drill rod 1 can be conveniently sleeved on the guide part 6 through the guide part 6.
The big end of the guide part 6 is integrally connected with the central rod body 4, and the small end of the guide part 6 is arranged on one side far away from the central rod body 4.
The end of the guiding part 6 away from the central rod body 4 is provided with a guiding end surface 61.
The length between the guide end surface 61 and the top abutment surface 51 is greater than the overall length of the joint 2.
Design like this, can establish on well core rod main part 4 with joint 2 cover to well core rod main part 4 and guide part 6 can extend to in the drilling rod 1, and then conveniently fix a position drilling rod 1 and joint 2.
When the tool is used, the mounting part 5 is firstly mounted in the mounting cavity 71 of the power spindle 7, the mounting counter bore 53 is clamped on the mounting block 72, and the axial position of the tool for removing the inner hole flash during friction welding can be limited by clamping the mounting counter bore 53 and the mounting block 72.
Then, the joint 2 is sleeved on the center rod body 4, one end of the joint 2 is abutted with the abutting surface 51, and then the joint 2 is fixedly connected with the power spindle 7.
At the moment, the joint 2 and the tool for removing the inner hole flash during friction welding can be fixedly arranged on a power main shaft 7 of the friction welding machine.
Then the drill rod 1 is sleeved on the central rod body 4, and the drill rod 1 is fixedly arranged on the friction welding machine.
At the moment, the power spindle 7 rotates to output power to drive the joint 2 to rotate, the joint 2 rotates and moves to one side close to the drill rod 1, the joint 2 and the drill rod 1 are in contact to generate friction, the contact part is heated and melted, when the temperature distribution and deformation of a friction welding area reach a certain degree, braking is started, the axial force is rapidly increased, and at the moment, metals on two sides are firmly welded together through mutual diffusion and recrystallization in a welding area, so that the whole welding process is completed.
In whole friction weld process, well core rod main part 4 is located the hole 3 of joint 2 and drilling rod 1, and then can prevent to connect 2 and drilling rod 1 in hole 3 is crowded to the fused iron when carrying out friction weld, and then can prevent that the condition of overlap from taking place to appear in hole 3, improves the result of use.
And the flash removing process is not required to be additionally added after the welding of the drill rod 1 and the joint 2 is finished, so that the production cost can be reduced, and the production effect is improved.
Embodiment 2, in an embodiment, the overall shape of the mounting counterbore 53 may also be a square counterbore, and the overall shape of the mounting block 72 is matched with the shape of the inner surface of the mounting counterbore 53.
By the design, the axial line rotation of the installation part 5 can be limited by clamping the installation counter bore 53 and the installation block 72, and the tool for removing the inner hole flash in friction welding can synchronously rotate along with the power main shaft 7.
Example 3: in an embodiment, the inner surface of the mounting counterbore 53 is provided with an internal thread, the outer surface of the mounting block 72 is provided with an external thread, and the mounting counterbore 53 and the mounting block 72 can be fixedly connected through a thread.
Example 4: in an embodiment, the annular groove 52 may not be formed on the outer surface of the mounting portion 5.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims.
Claims (7)
1. The utility model provides a frock for getting rid of hole overlap during friction weld which characterized in that: comprises a central rod body (4); the one end an organic whole of well core rod body (4) is connected with installation department (5), the one end an organic whole that installation department (5) were kept away from in well core rod body (4) is connected with guide part (6), the surface diameter of well core rod body (4) is less than the internal surface diameter of hole (3) of drilling rod (1) and joint (2).
2. The tool for removing the inner hole flash in friction welding according to claim 1, characterized in that: the surface diameter of installation department (5) is greater than the surface diameter of well core rod main part (4), the one end that installation department (5) are close to well core rod main part (4) is provided with top contact surface (51).
3. The tool for removing the inner hole flash in friction welding according to claim 2, characterized in that: an installation counter bore (53) is formed in one end face, far away from the central rod main body (4), of the installation portion (5), and the overall length of the installation counter bore (53) is smaller than or equal to that of the installation portion (5).
4. The tool for removing the inner hole flash in friction welding according to claim 3, characterized in that: an annular groove (52) is formed in the outer surface of the mounting portion (5), and the annular groove (52) and the mounting portion (5) are coaxially arranged.
5. The tool for removing the inner hole flash in friction welding according to claim 2, characterized in that: one end, far away from the central rod body (4), of the guide part (6) is provided with a guide end face (61), and the length between the guide end face (61) and the top joint face (51) is larger than the whole length of the joint (2).
6. The tool for removing the inner hole flash in friction welding according to claim 3, characterized in that: the overall shape of the mounting counter bore (53) is one of a circular counter bore shape and a square counter bore shape.
7. The tool for removing the inner hole flash in friction welding according to claim 1, characterized in that: the diameter of the outer surface of the central rod main body (4) is equal to the diameter of the inner surface of the inner hole (3) minus 0.10-0.50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220396604.2U CN216802082U (en) | 2022-02-26 | 2022-02-26 | Tool for removing inner hole flash during friction welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220396604.2U CN216802082U (en) | 2022-02-26 | 2022-02-26 | Tool for removing inner hole flash during friction welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216802082U true CN216802082U (en) | 2022-06-24 |
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ID=82042768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220396604.2U Active CN216802082U (en) | 2022-02-26 | 2022-02-26 | Tool for removing inner hole flash during friction welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216802082U (en) |
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2022
- 2022-02-26 CN CN202220396604.2U patent/CN216802082U/en active Active
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