CN215392546U - Dabber frock in sealed chamber of processing thrust wheel - Google Patents
Dabber frock in sealed chamber of processing thrust wheel Download PDFInfo
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- CN215392546U CN215392546U CN202120514986.XU CN202120514986U CN215392546U CN 215392546 U CN215392546 U CN 215392546U CN 202120514986 U CN202120514986 U CN 202120514986U CN 215392546 U CN215392546 U CN 215392546U
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- mandrel
- plug
- thrust wheel
- wall
- mounting hole
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Abstract
The utility model provides a dabber frock in sealed chamber of processing thrust wheel, belongs to the machining field, its characterized in that: comprises a mandrel, a screw rod and a plug; the plug is arranged in the plug mounting hole; bolts are arranged in the tail end threaded holes and the fixing through holes to realize the connection of the plug and the mandrel; the outer wall of the plug is a conical surface; the inner wall of the plug mounting hole is a conical surface. Compared with the original processing technology, the inner hole magnetic force meter alignment procedure is cancelled, so that the operation time of personnel is reduced; the front end of the mandrel is matched with a chuck of a machine tool, an inner hole of a semi-finished thrust wheel penetrates into the tail end of the mandrel, a plug is arranged on the tail part of the mandrel, the plug is in conical surface fit with the tail part of the mandrel, and a nut is matched with the machined inner hole and tensioned when tightened, so that the tensioning purpose is achieved, and the thrust wheel is fixed; the mandrel tool can effectively reduce the auxiliary time of personnel and improve the processing efficiency of the second procedure in the prior art.
Description
Technical Field
The utility model belongs to the field of machining, and particularly relates to a mandrel tool for machining a thrust wheel sealing cavity.
Background
The thrust wheel is arranged on a chassis of a crawler excavator and a bulldozer and bears the weight of the whole machine, the machining mode of the thrust wheel in the prior art is shown in figure 1, two procedures are needed, and the wheel edge of the thrust wheel is clamped by a chuck; during processing, processing the end face and the wheel edge of one end of the thrust wheel, and then processing an inner hole and a floating seal chamber of the thrust wheel to finish a first procedure; and when the second procedure is carried out, clamping the machined wheel edge by using a chuck, positioning by taking the machined end face as a reference end face, aligning the coaxiality of the inner hole within 0.03mm, and then machining the floating seal chamber, the orifice end face and the orifice chamfer at the unmachined end of the thrust wheel.
Although the existing machining mode can meet the machining requirement, the two machining processes are complicated, and each thrust wheel needs to be aligned by using a magnetic force meter in each machining process, so that the mass production and machining are not facilitated.
Disclosure of Invention
The utility model aims to solve the problems and provides a mandrel tool for machining a thrust wheel sealing cavity, which can improve the machining efficiency.
The mandrel tool for machining the sealing cavity of the thrust wheel comprises a mandrel, a screw rod and a plug; a front threaded hole is formed in the front end face of the mandrel; an annular step is arranged on the shaft body of the mandrel; the shape of the step end face of the annular step is matched with the end face of an inner hole of the thrust wheel to be processed; a plug mounting hole is formed in the tail end of the mandrel; a tail end threaded hole is formed in the lower wall of the plug mounting hole; a fixing through hole is formed in the plug along the central axis; the plug is arranged in the plug mounting hole; bolts are arranged in the tail end threaded holes and the fixing through holes to realize the connection of the plug and the mandrel; one end of the screw rod is arranged in the front end threaded hole; a nut is sleeved at the other end of the screw rod; the outer wall of the plug is a conical surface; the inner wall of the plug mounting hole is a conical surface.
According to the mandrel tool for machining the sealing cavity of the thrust wheel, the inner wall of the plug mounting hole is provided with the plurality of grooves at equal intervals. When the plug is tightened in the plug mounting hole through the bolt, the outer wall of the conical surface of the plug is matched with and tensioned with the inner hole of the processed thrust wheel, and therefore the thrust wheel is fixed.
According to the mandrel tool for machining the sealing cavity of the thrust wheel, the shaft body of the mandrel is composed of the connecting section and the machining section which are sequentially connected; the connecting section is fixedly connected with the processing section through the annular step; the outer wall of the connecting section is a conical surface; the outer wall of the processing section is circular; the outer wall of the connecting section is set to be a conical surface, so that the Mohs matching connection of the mandrel and the chuck of the machine tool is realized.
According to the mandrel tool for machining the sealing cavity of the thrust wheel, the number of the grooves is 8 along the radial direction of the inner wall of the plug mounting hole.
According to the mandrel tool for machining the sealing cavity of the thrust wheel, the gasket is arranged on the inner side of the nut sleeved on the lead screw; through setting up the fixed stability of gasket improvement nut to the lead screw to this stability that improves whole dabber frock.
Compared with the original processing technology, the mandrel tool for processing the thrust wheel sealing cavity cancels the inner hole magnetic force meter alignment procedure, thereby reducing the operation time of personnel; the front end of the mandrel is matched with a chuck of a machine tool, an inner hole of a semi-finished thrust wheel (an inner hole and one end floating seal chamber are processed to be finished products) penetrates into the tail end of the mandrel, the step end surface of an annular step is in contact positioning with the end surface of the inner hole of the wheel body, a plug is arranged on the tail part of the mandrel and is in conical surface fit with the tail part of the mandrel, and a nut is matched and tensioned with the processed inner hole when tightened, so that the tensioning purpose is achieved, and the thrust wheel is fixed; the mandrel tool can effectively reduce the auxiliary time of personnel and improve the processing efficiency of the second procedure in the prior art.
Drawings
FIG. 1 is a schematic view of a thrust wheel structure according to the prior art of the background of the present invention;
FIG. 2 is a schematic structural diagram of a mandrel tool for machining a sealing cavity of a thrust wheel according to an embodiment of the utility model;
FIG. 3 is a schematic view of a mandrel structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the plug according to the embodiment of the present invention;
FIG. 5 is a schematic view of a structure of the mandrel and the plug according to an embodiment of the present invention;
the device comprises a support wheel 1, a wheel rim 2, an inner hole 3, a floating seal chamber 4, a mandrel 5, a screw rod 6, a plug 7, a chuck 8, a machine tool 9, a belt 10, a belt pulley 11, a gear assembly 12, a bolt 13, a nut 14, a gasket 15, a front threaded hole 16, a tail threaded hole 16, a plug mounting hole 17, a fixing through hole 18, an annular step 19, a connecting section 20, a processing section 21, a belt pulley 22 and a motor 23.
Detailed Description
The following describes in detail the tool for machining the mandrel 5 of the sealed cavity of the thrust wheel 1 according to the present invention with reference to the accompanying drawings and embodiments.
In the embodiment of the present disclosure, the tooling for machining the mandrel 5 of the sealed cavity of the thrust wheel 1 shown in fig. 2 includes a mandrel 5, a lead screw 6 and a plug 7; a front end threaded hole 15 is formed in the front end face of the mandrel 5; an annular step 19 is arranged on the shaft body of the mandrel 5; the step end surface shape of the annular step 19 is matched with the end surface of the inner hole 3 of the thrust wheel 1 to be processed; a plug mounting hole 17 is formed in the tail end of the mandrel 5; as shown in fig. 3, 4 and 5, a tail end threaded hole 16 is formed in a lower wall of the plug mounting hole 17; a fixing through hole 18 is formed in the plug 7 along the central axis; the plug 7 is arranged in the plug mounting hole 17; bolts 12 are arranged in the tail end threaded holes 16 and the fixing through holes 18 to realize the connection between the plug 7 and the mandrel 5; one end of the screw rod 6 is arranged in the front end threaded hole 15; a nut 13 is sleeved at the other end of the screw rod 6; a gasket 14 is arranged on the inner side of a nut 13 sleeved on the screw rod 6; the outer wall of the plug 7 is a conical surface; the inner wall of the plug mounting hole 17 is a conical surface.
In the embodiment of the present disclosure, the shaft body of the mandrel 5 shown in fig. 3 is composed of a connecting section 20 and a processing section 21 which are connected in sequence; the connecting section 20 and the processing section 21 are fixedly connected through the annular step 19; the outer wall of the connecting section 20 is a conical surface; the outer wall of the processing section 21 is circular; the outer wall of the connecting section 20 is set to be a conical surface, so that the Mohs fit connection of the mandrel 5 and the chuck 8 of the machine tool 9 is realized. The inner wall of the plug mounting hole 17 is provided with 8 slots at equal intervals, the slots are radially arranged along the inner wall of the plug mounting hole 17, and when the plug 7 is tightened in the plug mounting hole 17 through the bolt 12, the outer wall of the conical surface of the plug 7 is matched with the inner hole 3 of the processed thrust wheel 1 and is tightened, so that the thrust wheel 1 is fixed.
The mandrel 5 is placed into a chuck 8, so that the mandrel 5 is fixedly connected with the chuck 8 of a machine tool 9; the chuck 8 is driven by a motor 23 on the machine tool 9 to operate through a belt pulley 22, a belt 10, a belt pulley and a gear assembly 11; putting a screw rod 6 into the chuck 8 from the other end, wherein one end of the screw rod 6 is connected with a front end threaded hole 15, a gasket 14 and a nut 13 are sequentially arranged at the other end, the mandrel 5 is fixed with the machine tool 9 through the screw rod, and the chuck 8 is in Morse fit with the mandrel 5; the connecting tooling portion of the machine tool 9 is thus completed. Firstly, the end face and the wheel edge 2 of one end of the thrust wheel are machined, then the inner hole 3 and the floating seal chamber 4 of the thrust wheel are machined, and the first procedure is completed.
When the other end of the floating seal chamber is machined, a wheel body of the thrust wheel 1 is arranged on a machining section 21 of the mandrel 5, the step end face of an annular step 19 of the mandrel 5 is in contact positioning with the end face of an inner hole 3 of the wheel body, a plug 7 is arranged in a plug mounting hole 17 at the tail of the mandrel 5, the plug 7 is in conical surface fit with the tail of the mandrel 5, a bolt 12 penetrates through a fixing through hole 18 in the plug 7 to be connected with a tail threaded hole 16 of the mandrel 5, the plug 7 and the plug mounting hole 17 are tightened, 35 length sizes are matched with the machined inner hole 3 of the thrust wheel 1, the tensioning purpose is achieved, and machining can be conducted after the mounting; after the machining is finished, the bolt 12 is loosened, the plug 7 is taken down, and then the thrust wheel 1 body can be taken down, the size inspection is carried out, and whether the thrust wheel is qualified or not is confirmed.
Claims (5)
1. The utility model provides a dabber frock in processing thrust wheel seal chamber which characterized in that: comprises a mandrel (5), a screw rod (6) and a plug (7); a front threaded hole (15) is formed in the front end face of the mandrel (5); an annular step (19) is arranged on the shaft body of the mandrel (5); the step end surface shape of the annular step (19) is matched with the inner hole end surface of the thrust wheel (1) to be processed; a plug mounting hole (17) is formed in the tail end of the mandrel (5); a tail end threaded hole (16) is formed in the lower wall of the plug mounting hole (17); the plug (7) is provided with a fixing through hole (18) along the central axis; the plug (7) is arranged in the plug mounting hole (17); bolts (12) are arranged in the tail end threaded holes (16) and the fixing through holes (18) to realize the connection of the plug (7) and the mandrel (5); one end of the screw rod (6) is arranged in the front threaded hole (15); a nut (13) is sleeved at the other end of the screw rod (6); the outer wall of the plug (7) is a conical surface; the inner wall of the plug mounting hole (17) is a conical surface.
2. The mandrel tool for machining the thrust wheel sealing cavity according to claim 1, wherein: and a plurality of open grooves are formed in the inner wall of the plug mounting hole (17) at equal intervals.
3. The mandrel tool for machining the thrust wheel sealing cavity according to claim 2, wherein: the shaft body of the mandrel (5) consists of a connecting section (20) and a processing section (21) which are sequentially connected; the connecting section (20) is fixedly connected with the processing section (21) through the annular step (19); the outer wall of the connecting section (20) is a conical surface; the outer wall of the processing section (21) is circular.
4. The mandrel tool for machining the thrust wheel sealing cavity according to claim 3, wherein: the number of the slots is 8 along the radial direction of the inner wall of the plug mounting hole (17).
5. The mandrel tool for machining the thrust wheel sealing cavity according to claim 4, wherein: and a gasket (14) is arranged on the inner side of the nut (13) sleeved on the screw rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120514986.XU CN215392546U (en) | 2021-03-11 | 2021-03-11 | Dabber frock in sealed chamber of processing thrust wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120514986.XU CN215392546U (en) | 2021-03-11 | 2021-03-11 | Dabber frock in sealed chamber of processing thrust wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215392546U true CN215392546U (en) | 2022-01-04 |
Family
ID=79668241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120514986.XU Active CN215392546U (en) | 2021-03-11 | 2021-03-11 | Dabber frock in sealed chamber of processing thrust wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215392546U (en) |
-
2021
- 2021-03-11 CN CN202120514986.XU patent/CN215392546U/en active Active
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