CN218744950U - Radial drilling machine drilling tool - Google Patents
Radial drilling machine drilling tool Download PDFInfo
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- CN218744950U CN218744950U CN202223492336.3U CN202223492336U CN218744950U CN 218744950 U CN218744950 U CN 218744950U CN 202223492336 U CN202223492336 U CN 202223492336U CN 218744950 U CN218744950 U CN 218744950U
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Abstract
The utility model provides a radial drill drilling tool, includes connecting rod portion, connector and work portion, the upper end of connecting rod portion is provided with clamping part, clamping part is connected with radial drill, the lower extreme of connecting rod portion is provided with coaxial fixed connection's connecting rod, the outside surface of connecting rod is provided with a plurality of first connecting strips of arranging along connecting rod length direction, be in the same place through the connector metallurgy of powder sintered body form between connecting rod and the work portion, joint strength obtains promoting, the connector forms around the connecting rod, and the impact of transmission on the connector can obtain evenly distributed, the outside surface of connector is provided with a plurality of second connecting strips of arranging along connector length direction, work portion parcel is in the outside of connector, and after the redistribution of the connector of the impact process that operation such as drilling or reaming produced, can make the impact carry out more even transmission on the drilling tool to avoid appearing relative rotary displacement between work portion and the connecting rod.
Description
Technical Field
The utility model relates to the field of welding technique, concretely relates to radial drill drilling tool.
Background
Traditional radial drill drilling tool mainly comprises connecting rod portion and the work portion of lower extreme of upper end, and the connecting rod portion of upper end and the work portion welding of lower extreme are in the same place, perhaps carries out fixed connection in the connecting rod portion lower extreme inserts the work portion with the mode of pegging graft, and connecting rod portion is responsible for connecting radial drill's grip slipper, and the work portion is responsible for and carries out the contact cutting with the part.
Above-mentioned structure mainly has two drawbacks, firstly, connecting rod portion and the working part of lower extreme of upper end need choose different materials for use because many cases, welded connection has the not enough problem of heterogeneous joint face intensity, on the other hand, if simple plug-in connection, when radial drill's drilling tool is used for carrying out reaming operation, the side of drilling tool can contact with the part, the resistance that produces this moment is opposite with drilling tool rotation direction, and transmit to the drilling tool from the side, and when carrying out reaming operation, the drilling tool still needs to carry out the circumferential rotation except the rotation, the continuous pore wall with the machined hole contacts the striking, long-time reaming work makes the relative rotation displacement appear between working part and the connecting rod easily, influence the machining precision of drilling tool, lead to the drilling tool to appear damaging even.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a radial drill drilling tool, be in the same place through powder sintered body metallurgy between the connecting rod of this drilling tool connecting rod portion and the work portion, joint strength obtains guaranteeing, all is provided with bellied connecting strip between connector and connecting rod and the work portion as the powder sintered body simultaneously, increases area of contact, can carry out again after the redistribution impact that the work portion received and resistance on the connecting rod of connecting rod portion to avoid appearing relative rotation displacement between work portion and the connecting rod.
The technical scheme of the utility model as follows:
the utility model provides a radial drill drilling tool, includes connecting rod portion, connector and work portion, the upper end of connecting rod portion is provided with clamping part, clamping part is connected with radial drill, the lower extreme of connecting rod portion is provided with coaxial fixed connection's connecting rod, the outside surface of connecting rod is provided with a plurality of first connecting strips of arranging along connecting rod length direction, the connector is the powder sintered body around the connecting rod, the area of contact of connecting rod and connector can be increased in the setting of first connecting strip, and the connector intensity that the powder sintered body was made is high, the rigidity is good, and the impact of transmitting on the connector can obtain evenly distributed, the outside surface of connector is formed with a plurality of second connecting strips along connector length direction distribution, work portion parcel is in the outside of connector, the area of contact between work portion and the connector can be increased in the setting of second connecting strip, work portion can rotate with connecting rod portion is coaxial, and with the part contact, carries out the impact that operations such as drilling or reaming produced, after the redistribution of connector, can make the impact carry out more even transmission on the drilling tool to avoid appearing relative rotation displacement between work portion and the connecting rod.
In the above-described radial drill, the connecting body as a sintered powder body has a first cavity portion provided corresponding to a position where the connecting rod is inserted, the first cavity portion surrounding the connecting rod, and an inner wall of the first cavity portion is provided with a first groove portion provided corresponding to the first connecting bar, the first groove portion being capable of accommodating the first connecting bar.
Furthermore, the height of the first connecting strip is not more than 1/3 of the wall thickness of the connecting body, so that the integral rigidity and strength of the connecting body are ensured.
Further, the spacing dimension between the adjacent first connecting strips is not less than the width dimension of the first connecting strips, so that the contact position of the connector and the first connecting strips has enough strength and rigidity.
Furthermore, the number of the second connecting strips is the same as that of the first connecting strips, and the second connecting strips and the first groove parts form a staggered structure, so that the positions with weak structural rigidity can be avoided.
The working part is provided with a second cavity part for accommodating the connecting body, the inner wall of the second cavity part is provided with a second groove part at a position corresponding to the second connecting strip, and the second groove part can accommodate the second connecting strip.
Optionally, the material of the connecting body is the same as the material of the connecting rod.
Optionally, the material of the connecting body is the same as that of the working portion.
Optionally, the material of the connecting body is metal or alloy.
Optionally, the material of the connecting body is selected from iron, cobalt, nickel, iron alloy, cobalt alloy or nickel alloy.
The utility model discloses for the beneficial effect that prior art gained lie in:
a radial drill drilling tool, be in the same place through powder sintering body metallurgy between the connecting rod portion of drilling tool and the work portion, not only satisfied the bonding strength between connecting rod portion and the work portion, moreover, through the connection structure cooperation between the two, make the impact and the resistance that the connector received when can be to the drilling tool reaming redistribute, then will impact and the even transmission of resistance to the connecting rod portion on, in addition the position of connecting rod portion and connector contact and the position of connector and work portion contact are provided with first connecting strip and second connecting strip respectively, increase the area of contact between the adjacent part to make when having increased bonding strength impact and resistance can be more even when transmitting between each part, avoid the connecting rod portion and the work portion of drilling tool to appear relative rotation displacement and lead to the drilling tool to appear distorting and damaging.
Drawings
The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
In the drawings:
FIG. 1 is a schematic structural view of a radial drilling rig according to the present invention;
FIG. 2 is a schematic view of the radial drill shown in FIG. 1 after the connecting body and the working portion are disassembled and stretched;
fig. 3 is a schematic structural view of the connecting rod portion of the present invention;
FIG. 4 is a schematic structural view (abstract view) of the connecting body of the present invention;
fig. 5 is a schematic structural view of the working portion of the present invention;
fig. 6 is a cross-sectional view of a drilling tool according to the present invention;
wherein the reference numerals denote:
1. a link section; 11. a clamping portion; 12. a connecting rod; 13. a first connecting bar; 2. a linker; 21. a first cavity part; 22. a first groove portion; 23. a second connecting strip; 3. a working part; 31. a second cavity section; 32. a second groove portion.
Detailed Description
Example 1
Referring to fig. 1-6, a radial drilling machine drilling tool comprises a connecting rod part 1, a connecting body 2 and a working part 3, wherein a clamping part 11 is arranged at the upper end of the connecting rod part 1, and the clamping part 11 is connected with the radial drilling machine, so that the radial drilling machine can drive the drilling tool to rotate, and drilling or reaming and other operations can be performed on parts.
As a first improvement of this embodiment, as shown in fig. 1, fig. 2 or fig. 6, in this embodiment, the connecting body 2 is a powder sintered body, and the bonding strength between the connecting rod portion 1 and the working portion 3 can be improved by adopting a powder metallurgy connection method when connecting the connecting rod portion 1 and the working portion 3, and this connection method can also ensure good connection between the connecting rod portion 1 and the working portion 3 when there is a material difference therebetween.
As a second important improvement of the present embodiment, as shown in fig. 1 to 6, the lower end of the connecting rod portion 1 is provided with a connecting rod 12 which is coaxially and fixedly connected, the outer side surface of the connecting rod 12 is provided with a plurality of first connecting bars 13 which are arranged along the length direction of the connecting rod 12, the connecting body 2 is specifically a powder sintered body which surrounds the connecting rod 12, the arrangement of the first connecting bars 13 can increase the contact area between the connecting rod 12 and the connecting body 2, so that the impact transmitted through the connecting body 2 can be uniformly dispersed on the connecting rod 12 of the connecting rod portion 1, the connecting body 2 made of the powder sintered body also has the strength and rigidity comparable to those of the body connected thereto, and the impact transmitted on the connecting body 2 can be uniformly distributed.
Further, a plurality of second connecting strips 23 distributed along the length direction of the connecting body 2 are formed on the outer side surface of the connecting body 2, the working part 3 is wrapped on the outer side of the connecting body 2, the contact area between the working part 3 and the connecting body 2 can be increased due to the arrangement of the second connecting strips 23, the working part 3 can rotate coaxially with the connecting rod part 1 and is in contact with a part to perform operations such as drilling or reaming and the like on the part, when the working part 3 performs reaming operations on the part, impact generated between the outer side surface of the working part and the part can be transmitted to the connecting body 2 more uniformly under the action of the second connecting strips 23, and after the impact is redistributed by the connecting body 2, the impact can be transmitted on a drilling tool more uniformly, so that relative rotational displacement between the working part 3 and the connecting rod 12 is avoided.
Referring to fig. 4, the connected body 2, which is a sintered powder body, has a first cavity portion 21 corresponding to a position where the connection rod 12 is inserted, the first cavity portion 21 surrounding the connection rod 12, and an inner wall of the first cavity portion 21 is formed with a first groove portion 22 at a position corresponding to the first connection bar 13, the first groove portion 22 being capable of accommodating the first connection bar 13 to be inserted.
Fig. 4 is an abstract view of the structure of the connecting body 2 for clarity of the structure of the present invention. As described above, in actual production, the individual connected body 2 having this shape is not prepared separately in advance, but when the rod portion 1, the raw material powder, and the working portion 3 are sintered and connected together, the raw material powder is not metallurgically solidified between the rod portion 1 and the working portion 3, and a sintered body, that is, the connected body 2 shown in fig. 4, is naturally formed. Similarly, fig. 2 is a schematic view of the radial drilling machine shown in fig. 1, in which the link body 2 and the working portion 3 are disassembled and stretched, and is an abstract view for easy viewing of the structure of the link body 2, and the assembled radial drilling machine structure is clearly shown in fig. 1 and 6.
Referring to fig. 5, the working part 3 has a second cavity 31 for accommodating the connecting body 2, and the inner wall of the second cavity 31 is provided with a second groove 32 at a position corresponding to the second connecting bar 23, and the second groove 32 can accommodate the second connecting bar 23.
The powder metallurgy connection method is a connection method known in the art, and when the method is applied to the above scheme of the present embodiment, a powder filling cavity which is formed between the connecting rod part 1 and the working part 3 and has the same structure as the pre-designed connecting body 2 is filled with powder, and the assembly body is sintered together in a vacuum sintering furnace to obtain the integral drilling tool of the present embodiment, wherein the sintering technology adopted in the process is known sintering technology.
Example 2
The present embodiment is further described in terms of the material and the size design of the radial drilling tool based on embodiment 1, and these descriptions are only an example and not a limitation to the protection scheme of the present invention.
First, the material of the connecting body 2 in the form of a sintered body may be fully considered to be the material of the connecting rod portion 1 and the working portion 3, for example, the material of the connecting body 2 may be at least the same as the material of the connecting rod 12 of the connecting rod portion 1, or the material of the connecting body 2 may be the same as the material of the working portion 3, the bonding strength between the materials with the same material is higher, the structural strength of the radial drill is mainly enhanced, and when the material difference between the connecting rod portion 1 and the working portion 3 is large, for example, the connecting rod portion is a common metal alloy, the working portion is a high-strength hard alloy, the material of the connecting body 2 may tend to be selected as a material of an intermediate metal bonding phase in the prior art, for example, iron, cobalt, nickel, an iron alloy, a cobalt alloy, or a nickel alloy, which are all mature materials in the prior art.
In terms of the matching shape and size among the connecting rod part 1, the connecting body 2 and the working part 3, it is preferable that the height of the first connecting bar 13 in embodiment 1 is not more than 1/3 of the wall thickness of the connecting body 2, so as to avoid that the depth of the first groove part 22 is too deep, which causes the overall rigidity and strength of the connecting body 2 to be affected. Furthermore, the spacing dimension between adjacent first connecting strips 13 is not less than the width dimension of the first connecting strips 13, so that the contact position of the connecting body 2 and the first connecting strips 13 has sufficient strength and rigidity, and the phenomenon that the drilling tool is distorted and the coaxiality of the drilling tool is affected due to deformation or failure of the contact position of the connecting body 2 and the first connecting strips 13 is avoided. Further preferably, as shown in fig. 6, the number of the second connecting strips 23 is the same as the number of the first connecting strips 13, the structure and the rigidity of the connecting body 2 at the position where the first groove portion 22 is provided are relatively weak, the second connecting strips 23 and the first groove portion 22 form a staggered structure, the position where the structure rigidity is weak can be avoided, and the connecting body 2 is prevented from cracking and damaging due to direct conduction of impact on the second connecting strips 23 to the weak position.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a radial drilling machine drilling tool, its characterized in that, includes connecting rod portion (1), connector (2) and work portion (3), the upper end of connecting rod portion (1) is provided with clamping part (11), clamping part (11) are connected with radial drilling machine, the lower extreme of connecting rod portion (1) is provided with coaxial fixed connection's connecting rod (12), the outside surface of connecting rod (12) is provided with a plurality of first connecting strip (13) of arranging along connecting rod (12) length direction, connector (2) are the powder sintered body around connecting rod (12), the outside surface of connector (2) is formed with a plurality of second connecting strip (23) of distributing along connector (2) length direction, work portion (3) parcel is in the outside of connector (2), work portion (3) can be with connecting rod portion (1) coaxial rotation, carry out drilling cutting to spare part.
2. A radial drilling tool according to claim 1, characterized in that the adapter body (2) being a sintered body of powder has a first cavity portion (21) corresponding to the position where the connecting rod (12) is inserted, the first cavity portion (21) surrounding the connecting rod (12), the inner wall of the first cavity portion (21) forming a first groove portion (22) at a position corresponding to the first connecting strip (13), the first groove portion (22) being capable of receiving the first connecting strip (13).
3. Drilling tool according to claim 2, characterized in that the height of the first connecting strip (13) is not more than 1/3 of the wall thickness of the connecting body (2).
4. A drilling tool according to claim 3, characterized in that the dimension of the spacing between adjacent first connecting strips (13) is not less than the width dimension of the first connecting strips (13).
5. Drilling tool according to claim 4, characterized in that the number of second connecting strips (23) is the same as the number of first connecting strips (13), said second connecting strips (23) forming a staggered structure with the first grooves (22).
6. Drilling tool according to claim 1, characterized in that said working portion (3) has a second cavity (31) housing said connecting body (2), the inner wall of said second cavity (31) being provided with a second groove portion (32) in a position corresponding to said second connecting strip (23), said second groove portion (32) being able to house said second connecting strip (23).
7. The radial drilling machine tool according to claim 1, characterized in that the material of the connecting body (2) is the same as the material of the connecting rod (12).
8. The radial drilling machine tool according to claim 1, characterized in that the material of the connecting body (2) is the same as the material of the working part (3).
9. The radial drilling tool according to claim 7 or 8, characterized in that the material of the connecting body (2) is metal or alloy.
10. Drilling tool according to claim 9, characterized in that the material of the connecting body (2) is selected from iron, cobalt, nickel, iron alloys, cobalt alloys or nickel alloys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223492336.3U CN218744950U (en) | 2022-12-27 | 2022-12-27 | Radial drilling machine drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223492336.3U CN218744950U (en) | 2022-12-27 | 2022-12-27 | Radial drilling machine drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218744950U true CN218744950U (en) | 2023-03-28 |
Family
ID=85687269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223492336.3U Active CN218744950U (en) | 2022-12-27 | 2022-12-27 | Radial drilling machine drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218744950U (en) |
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2022
- 2022-12-27 CN CN202223492336.3U patent/CN218744950U/en active Active
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