CN220761034U - Flexible boring cutter bar and flexible boring machine tool - Google Patents
Flexible boring cutter bar and flexible boring machine tool Download PDFInfo
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- CN220761034U CN220761034U CN202321765971.6U CN202321765971U CN220761034U CN 220761034 U CN220761034 U CN 220761034U CN 202321765971 U CN202321765971 U CN 202321765971U CN 220761034 U CN220761034 U CN 220761034U
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- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 230000003137 locomotive effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of machining, and particularly relates to a flexible boring cutter bar and a flexible boring machine, wherein the flexible boring cutter bar comprises a cutter bar main body, a cutter handle and a flexible connecting piece, and the cutter bar main body is connected with the cutter handle through the flexible connecting piece; the side wall of the cutter bar main body is provided with boring cutter heads which are distributed along the radial direction of the cutter bar main body; the utility model breaks through the inertia thinking that the machine tools are all rigid processing, creatively designs and manufactures a set of special cross universal shaft boring cutter bar main body, and the cutter bar main body ingeniously utilizes the characteristic that the cross universal shaft can realize flexible connection of two rigid shafts and reliably transmit torque. When the cutter bar is used, the cutter bar main body is matched with two pin holes on the hook body to automatically position and align, so that the original aligning procedure is reduced, and the coaxiality requirements of the processed arc of the impact table and the pin holes at the two ends are well ensured.
Description
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to a flexible boring cutter bar and a flexible boring machine tool.
Background
The locomotive coupler refers to the hooks at two ends of the locomotive and has the functions of connection, traction and buffering.
The coupler is a vehicle component for realizing the connection between a locomotive and a vehicle or between vehicles, transmitting traction force and impact force and keeping a certain distance between the vehicles. The coupler of the existing locomotive can have too small gap between the coupler knuckle pin and the pin hole sleeve in the operation process, so that the coupler body cannot normally contact with a traction table and an impact table of the coupler knuckle, and the coupler knuckle pin is easy to break due to inertial faults caused by stress in the operation process, thereby bringing serious hidden danger to the safety of the locomotive. For this reason, improvements in coupler structures are needed.
The existing coupler is improved by manually grinding to be cylindrical, so that the labor intensity of operation is high and the efficiency is extremely low. However, if the boring machine is used to perform boring on the impact table corresponding to the two pin holes on the coupler body, the conventional machining boring method needs to perform alignment, positioning, clamping and tool setting on the two phi 50 pin holes on the coupler body respectively by using a dial indicator, and the universal machining boring tool of the boring machine is of a rigid structure, so that the machining standard can only be aligned one by one when the two arc surfaces of the impact table of the coupler are machined, and therefore, the rotation center of the main shaft of the machine tool is required to be consistent with the centers of the two phi 50 pin holes on the coupler, repeated adjustment and detection are required, the efficiency is extremely low, the coaxiality of the coupler after the machining of the two holes is difficult to ensure, and the repair rate is high.
Therefore, when the existing machining equipment performs hole cutting on a part with a pin hole, which is similar to a locomotive coupler structure, the problems of low part machining quality, low working efficiency and the like generally exist due to difficult alignment and difficult guarantee of the coaxiality of the hole.
Disclosure of Invention
The utility model aims to provide a flexible boring cutter bar and a flexible boring machine tool, which solve the problem of high processing difficulty when a part with a pin hole is subjected to hole cutting processing at present.
The technical scheme for achieving the purposes is as follows:
the flexible boring cutter bar is characterized by comprising a cutter bar main body, a cutter handle and a flexible connecting piece, wherein the cutter bar main body is connected with the cutter handle through the flexible connecting piece; the boring cutter head is arranged on the side wall of the cutter bar main body, and the boring cutter head is arranged along the radial direction of the cutter bar main body.
Further defined, the boring heads are two disposed side by side.
Further limited, the locating hole has been seted up on the lateral wall of cutter arbor main part, be provided with locating component in the locating hole, boring tool bit's stiff end sets up in the locating hole, boring tool bit's stiff end passes through locating component and is connected with the cutter arbor main part.
Further defined, the positioning assembly is a screw or bayonet.
Further defined, one end of the cutter bar main body connected with the flexible connecting piece extends into the flexible connecting piece, and the cutter bar main body is locked and fixed with the flexible connecting piece through the first locking component.
Further defined, the flexible connecting piece is provided with a second locking assembly at one end connected with the knife handle, and the knife handle is coaxially connected with the flexible connecting piece through the second locking assembly.
Further defined, the flexible connection is a cross-joint or a steel flexible joint.
The flexible boring machine tool comprises a machine tool and is characterized in that a main shaft of the machine tool is connected with the flexible boring cutter bar.
Further defined, the shank of the flexible boring bar extends into a spindle bore of a machine tool.
Further defined, the spindle of the machine tool is coaxially disposed with the shank and the shank body.
The utility model has the beneficial effects that:
the utility model breaks through the inertia thinking that the machine tools are all rigid processing, creatively designs and manufactures a set of special cross universal shaft boring cutter bar main body, and the cutter bar main body ingeniously utilizes the characteristic that the cross universal shaft can realize flexible connection of two rigid shafts and reliably transmit torque. When the tool bar is used, the tool bar main body is matched with the two pin holes on the hook body to automatically position and align, so that the original alignment procedure is reduced. Meanwhile, the coaxiality requirement of the processed arc of the impact table at the two ends and the pin hole is well guaranteed.
Drawings
FIG. 1 is a schematic cross-sectional view of a part to be machined according to the present utility model;
FIG. 2 is a schematic view of a flexible boring cutter bar according to the present utility model;
FIG. 3 is a schematic cross-sectional view of portion A-A of FIG. 2;
in the figure: 1-a cutter bar main body; 11-positioning holes; 12-positioning assembly; 2, a knife handle; 3-flexible connection; 31-a first locking assembly; 32-a second locking assembly; 4-boring a cutter head; and 5-boring machine main shaft.
Detailed Description
Example 1
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without the benefit of the present disclosure, are intended to be within the scope of the present application based on the described embodiments.
In practical use, the part to be machined is of a symmetrical structure, referring to fig. 1, a cross section of the part to be machined along a symmetrical plane thereof, and the machining requirement of the part to be machined is that a cambered surface B coaxial with the pin hole A is arranged on the peripheral side outside the pin hole A, at this time, if a boring cutter is directly used for cutting, the boring machine spindle 5 and the pin hole A are required to be coaxially arranged, at this time, a great amount of time is required for leveling and alignment, and the cutting difficulty is increased; meanwhile, the boring cutter is required to pass through two pin holes on the part to be processed and then cut the peripheral sides outside the two pin holes respectively to form corresponding cambered surfaces B, and when the conventional boring cutter is of a rigid structure and processes the cambered surfaces B, if the coaxiality of the boring machine main shaft 5 and the pin holes A is poor, the boring cutter can be damaged.
Referring to fig. 2, the present embodiment provides a flexible boring cutter bar, which includes a cutter bar main body 1, a cutter handle 2 and a flexible connecting piece 3, wherein the cutter bar main body 1 and the cutter handle 2 are connected through the flexible connecting piece 3, a boring cutter head 4 is disposed on a side wall of the cutter bar main body 1, and the boring cutter head 4 is disposed along a radial direction of the cutter bar main body 1.
Specifically, the boring cutter head 4 is mounted on the cutter bar main body 1, and then the cutter bar main body 1 is connected with the cutter bar 2 through the flexible connecting piece 3, and the cutter bar 2 is used for being mounted on a main shaft of a processing machine tool such as a lathe, a boring machine and the like.
In actual use, the length of the boring bit 4 is adjusted according to the radius of the arc surface B, the boring bit 4 is tightly connected with the cutter bar main body 1, and then two ends of the cutter bar main body 1 are arranged in the two pin holes A, so that the axis of the boring bit 4 is coaxial with the axes of the two pin holes A when the boring bit 4 rotates, and the cut arc surface B is coaxial with the pin holes A.
And then the end part of the cutter bar main body 1 is connected with the cutter handle 2 through the flexible connecting piece 3, the cutter handle 2 is connected to a main shaft of a boring machine, the main shaft 5 of the boring machine drives the cutter handle 2 and the flexible connecting piece 3 to rotate after the boring machine is started, and the flexible connecting piece 3 drives the cutter bar main body 1 to rotate in the pin hole A, so that the boring cutter head 4 can cut the arc surface B.
In order to reduce the stress intensity of the flexible connecting piece 3, the flexible connecting piece 3 is simply adjusted to be basically coaxial with the cutter handle 2 and the cutter bar main body 1.
Further, in order to improve the machining efficiency, the number of the boring tool bits 4 is selected to be two, so that the two boring tool bits 4 can machine two arc surfaces B at the same time, and the working efficiency is improved. The two boring heads 4 can optionally be arranged in the radial direction of the tool shank body 1.
To further explain, in order to be able to adjust the length of the boring bit 4 on the one hand, and in order to be able to ensure that the boring bit 4 is stably mounted during the machining process and that the machining accuracy is ensured on the other hand, a positioning hole 11 is selectively formed in the cutter bar main body 1, a positioning component 12 is provided in the positioning hole 11, and when the boring bit 4 is mounted, the boring bit 4 is firstly mounted in the corresponding positioning hole 11, and then the boring bit 4 is fastened and mounted on the cutter bar main body 1 through the positioning component 12.
As shown in fig. 3, in order to ensure stable installation of the boring cutter head 4, the number of the positioning assemblies 12 is preferably two, the two positioning assemblies 12 are arranged in a right-angle direction, one positioning assembly 12 is arranged in the same direction as the boring cutter head 4, and the boring cutter head 4 is fastened to slide along the positioning hole 11 during processing so as to ensure processing precision; the other positioning component 12 is perpendicular to the boring cutter head 4, so that the positioning component 12 is propped against the boring cutter head 4, the boring cutter head 4 is prevented from shaking during processing, the processing efficiency and the processing quality are ensured, and the processing requirement is met.
The positioning assembly 12 may be selected as a screw or bayonet.
Further, in order to facilitate the disassembly of the flexible boring cutter bar when in use, the cutter bar main body 1 and the flexible connecting piece 3 are selected to be detachably connected, and the cutter bar 2 and the flexible connecting piece 3 are detachably connected.
Specifically, the first locking component 31 is arranged at the end part corresponding to the flexible connecting piece 3, the end part corresponding to the cutter bar main body 1 extends into the flexible connecting piece 3 during connection, then the end part corresponding to the cutter bar main body 1 and the flexible connecting piece 3 are fastened and connected through the first locking component 31, and the coaxial arrangement of the end part corresponding to the cutter bar main body 1 and the flexible connecting piece 3 is ensured during connection.
The second locking component 32 is arranged at the other end part corresponding to the flexible connecting piece 3, the end part corresponding to the knife handle 2 is extended into the flexible connecting piece 3 during connection, then the end part corresponding to the knife handle 2 and the flexible connecting piece 3 are fixedly connected through the second locking component 32, and the end part corresponding to the knife handle 2 and the flexible connecting piece 3 are coaxially arranged during connection.
Wherein the flexible connection 3 can be selected as a cross universal joint or a steel flexible joint.
The working process comprises the following steps:
when in actual use, the cutter bar main body 1 is firstly stretched into the two coaxial pin holes A, then the position of the cutter head 4 on the cutter bar main body 1 is adjusted according to the processing requirement, and then the cutter head 4 is fixed through the positioning component 12, so that the processing precision is ensured.
The tool shank 2 is then mounted on the boring machine spindle such that rotation of the boring machine spindle can drive rotation of the tool shank 2.
The cutter bar main body 1 then extends into one end of the flexible connecting piece 3, and the cutter bar main body 1 is connected with the flexible connecting piece 3 through the first locking component 31; the handle 2 is extended into the other end of the flexible connecting member 3 and the handle 2 is connected with the flexible connecting member 3 by the second locking assembly 32.
Finally, the position of the part to be machined is simply adjusted, and the tool bar main body 1 and the boring machine main shaft are visually positioned on the same axis for machining.
The boring machine main shaft rotates to drive the tool handle 2, the flexible connecting piece 3 and the tool bar main body 1 to rotate in sequence, at this time, because the tool bar main body 1 is positioned in two coaxial pin holes A and rotates around the axis of the pin holes A, at this time, two tool bits 4 on the tool bar main body 1 rotate around the axis of the pin holes A and process on a part to be processed, the coaxial arrangement of two arc surfaces B after processing is ensured, and the processing precision of the tool bar main body can be ensured.
Example 2
Based on the flexible boring cutter bar provided in embodiment 1, this embodiment provides a flexible boring machine tool, including a machine tool, and a spindle of the machine tool is connected with the flexible boring cutter bar described in embodiment 1.
The tool shank 2 of the flexible boring tool bar extends into a spindle hole of the machine tool and is fixedly connected with the spindle of the machine tool.
Further preferably, the spindle of the machine tool, the tool shank 2 and the tool shank main body 1 are coaxially arranged, so that the stress intensity of the flexible connecting piece 3 is reduced.
The above is an embodiment of the present application. The foregoing embodiments and the specific parameters in the embodiments are only for clearly describing the verification process of the application, and are not intended to limit the scope of the application, which is defined by the claims, and all equivalent structural changes made by applying the descriptions and the drawings of the application are included in the scope of the application.
Claims (10)
1. The flexible boring cutter bar is characterized by comprising a cutter bar main body (1), a cutter handle (2) and a flexible connecting piece (3), wherein the cutter bar main body (1) is connected with the cutter handle (2) through the flexible connecting piece (3); the boring cutter is characterized in that a boring cutter head (4) is arranged on the side wall of the cutter bar main body (1), and the boring cutter head (4) is distributed along the radial direction of the cutter bar main body (1).
2. A flexible boring bar according to claim 1, characterized in that the boring heads (4) are two arranged side by side.
3. The flexible boring cutter bar according to claim 1, wherein a positioning hole (11) is formed in the side wall of the cutter bar main body (1), a positioning component (12) is arranged in the positioning hole (11), the fixed end of the boring cutter head (4) is arranged in the positioning hole (11), and the fixed end of the boring cutter head (4) is connected with the cutter bar main body (1) through the positioning component (12).
4. A flexible boring bar according to claim 3, characterized in that the positioning assembly (12) is a screw or bayonet.
5. The flexible boring cutter bar according to claim 1, wherein one end of the cutter bar main body (1) connected with the flexible connecting piece (3) extends into the flexible connecting piece (3), and the cutter bar main body (1) is locked and fixed with the flexible connecting piece (3) through the first locking assembly (31).
6. The flexible boring cutter bar according to claim 5, wherein a second locking assembly (32) is arranged at one end of the flexible connecting piece (3) connected with the cutter handle (2), and the cutter handle (2) is coaxially connected with the flexible connecting piece (3) through the second locking assembly (32).
7. A flexible boring bar according to any one of claims 1 to 6, characterized in that the flexible connection (3) is a cross-joint or a steel flexible joint.
8. A flexible boring machine comprising a machine tool, wherein a spindle of the machine tool is coupled with the flexible boring bar of claim 7.
9. A flexible boring machine according to claim 8, characterized in that the shank (2) of the flexible boring bar extends into the spindle bore of the machine tool.
10. A flexible boring machine according to claim 8, characterized in that the spindle of the machine tool is arranged coaxially with the shank (2) and the shank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321765971.6U CN220761034U (en) | 2023-07-06 | 2023-07-06 | Flexible boring cutter bar and flexible boring machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321765971.6U CN220761034U (en) | 2023-07-06 | 2023-07-06 | Flexible boring cutter bar and flexible boring machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220761034U true CN220761034U (en) | 2024-04-12 |
Family
ID=90604747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321765971.6U Active CN220761034U (en) | 2023-07-06 | 2023-07-06 | Flexible boring cutter bar and flexible boring machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220761034U (en) |
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2023
- 2023-07-06 CN CN202321765971.6U patent/CN220761034U/en active Active
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